/* roulang page: index */
:root{
  --color-bg:#0B0F0D;
  --color-surface:#112019;
  --color-surface-2:#0C3B2E;
  --color-primary:#0C3B2E;
  --color-accent:#C8F04C;
  --color-emphasis:#FF6B3D;
  --color-gold:#F4C95D;
  --color-text:#F5F7F0;
  --color-text-muted:#B7C5BD;
  --color-border:rgba(241,255,240,0.12);
  --color-success:#3DDC97;
  --color-danger:#FF5A5F;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,0.35);
  --shadow-dock:0 12px 40px rgba(0,0,0,0.45);
  --font-cn:system-ui,-apple-system,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,sans-serif;
  --font-num:'Barlow Condensed','DIN Alternate',Oswald,Impact,sans-serif;
  --transition-fast:0.2s;
  --transition-base:0.25s;
  --container-max:1200px;
  --section-pad-desktop:80px 0;
  --section-pad-mobile:52px 0;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-cn);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.65;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition-base)}
a:hover{color:var(--color-accent)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad-desktop)}
.section-alt{background:var(--color-surface)}
.section-tight{padding:40px 0}
.bg-texture{
  background-image:linear-gradient(rgba(200,240,76,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(200,240,76,0.03) 1px,transparent 1px);
  background-size:42px 42px;
  position:relative;
}
.bg-texture::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at 20% 0%,rgba(12,59,46,0.55) 0%,transparent 55%),radial-gradient(ellipse at 80% 100%,rgba(255,107,61,0.08) 0%,transparent 50%);
  pointer-events:none;
}
/* ===== 浮动 Dock 导航 ===== */
.dock-header{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:var(--container-max);
  z-index:1000;
}
.dock-nav{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;padding:0 22px;
  background:rgba(12,18,15,0.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--color-border);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-dock);
  gap:12px;
}
.dock-logo{
  font-weight:800;font-size:1.15rem;letter-spacing:0.02em;
  color:var(--color-text);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.dock-logo .logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--color-accent);display:inline-block;flex-shrink:0;
}
.dock-menu{
  display:flex;align-items:center;gap:6px;
  list-style:none;margin:0;padding:0;
}
.dock-menu li a{
  display:inline-flex;align-items:center;
  padding:8px 16px;font-size:0.92rem;font-weight:500;
  color:var(--color-text-muted);
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
  white-space:nowrap;
}
.dock-menu li a:hover,
.dock-menu li a.active{
  color:var(--color-text);
  background:rgba(200,240,76,0.12);
}
.dock-menu li a.active{
  color:var(--color-accent);
  background:rgba(200,240,76,0.15);
}
.dock-actions{
  display:flex;align-items:center;gap:10px;
}
.dock-search-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(241,255,240,0.06);
  border:1px solid var(--color-border);
  transition:all var(--transition-base);
}
.dock-search-btn:hover{
  background:rgba(200,240,76,0.12);
  border-color:var(--color-accent);
}
.dock-cta{
  padding:9px 20px;font-size:0.88rem;font-weight:700;
  background:var(--color-accent);color:#0C3B2E;
  border-radius:var(--radius-pill);white-space:nowrap;
  transition:all var(--transition-base);
}
.dock-cta:hover{
  background:#fff;color:#0C3B2E;
  box-shadow:0 0 20px rgba(200,240,76,0.35);
}
.dock-burger{
  display:none;width:40px;height:40px;border-radius:50%;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:rgba(241,255,240,0.06);
  border:1px solid var(--color-border);
}
.dock-burger span{
  display:block;width:18px;height:2px;background:var(--color-text);
  border-radius:1px;transition:all var(--transition-base);
}
.dock-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.dock-burger.open span:nth-child(2){opacity:0}
.dock-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.dock-drawer{
  display:none;position:fixed;top:76px;left:16px;right:16px;
  background:rgba(12,18,15,0.97);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:20px;z-index:999;
  flex-direction:column;gap:8px;
  box-shadow:var(--shadow-dock);
}
.dock-drawer.open{display:flex}
.dock-drawer a{
  padding:12px 16px;font-size:1rem;font-weight:500;
  color:var(--color-text-muted);border-radius:var(--radius-sm);
  transition:all var(--transition-base);
}
.dock-drawer a:hover,.dock-drawer a.active{
  color:var(--color-accent);background:rgba(200,240,76,0.1);
}
/* ===== Hero ===== */
.hero{
  position:relative;padding-top:150px;
  background:var(--color-bg);
  overflow:hidden;
  min-height:100vh;
  display:flex;align-items:center;
}
.hero::after{
  content:'';position:absolute;bottom:-2px;left:0;right:0;height:80px;
  background:linear-gradient(to bottom right,transparent 49.5%,var(--color-surface) 50%);
  pointer-events:none;z-index:2;
}
.hero-watermark{
  position:absolute;top:110px;right:-30px;
  font-family:var(--font-num);
  font-size:clamp(5rem,12vw,11rem);
  font-weight:800;line-height:0.95;
  color:rgba(200,240,76,0.06);
  letter-spacing:-0.02em;
  pointer-events:none;z-index:0;
  white-space:nowrap;
}
.hero-container{
  position:relative;z-index:1;
  display:grid;grid-template-columns:7fr 5fr;
  gap:48px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;font-size:0.82rem;font-weight:600;
  background:rgba(200,240,76,0.1);
  border:1px solid rgba(200,240,76,0.25);
  border-radius:var(--radius-pill);
  color:var(--color-accent);
  margin-bottom:20px;
}
.hero-badge .status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--color-success);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.4}}
.hero h1{
  font-size:clamp(2.2rem,4.5vw,3.8rem);
  font-weight:800;line-height:1.15;
  letter-spacing:-0.01em;
  color:var(--color-text);
  margin-bottom:18px;
}
.hero h1 .accent-text{
  color:var(--color-accent);
}
.hero-sub{
  font-size:1.08rem;
  color:var(--color-text-muted);
  max-width:560px;
  margin-bottom:30px;
  line-height:1.75;
}
.hero-cta-row{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-bottom:28px;
}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;font-size:0.95rem;font-weight:700;
  background:var(--color-accent);color:#0C3B2E;
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
}
.btn-primary:hover{
  background:#fff;color:#0C3B2E;
  box-shadow:0 0 28px rgba(200,240,76,0.4);
  transform:translateY(-1px);
}
.btn-primary:focus-visible{
  box-shadow:0 0 0 4px rgba(200,240,76,0.35);
}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 28px;font-size:0.95rem;font-weight:600;
  background:transparent;color:var(--color-text);
  border:1px solid rgba(200,240,76,0.5);
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
}
.btn-outline:hover{
  background:rgba(200,240,76,0.1);
  border-color:var(--color-accent);
  color:var(--color-text);
}
.btn-outline:focus-visible{
  box-shadow:0 0 0 4px rgba(200,240,76,0.25);
}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:18px;
  font-size:0.86rem;color:var(--color-text-muted);
}
.hero-trust span{
  display:inline-flex;align-items:center;gap:6px;
}
.hero-trust .check-icon{
  color:var(--color-success);font-weight:800;
}
.hero-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  border:1px solid var(--color-border);
  min-height:420px;
  background:url('/assets/images/ff4f8f5a84c7e920.jpg') center/cover no-repeat;
  display:flex;flex-direction:column;justify-content:flex-end;
}
.hero-visual::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(11,15,13,0.95) 0%,rgba(11,15,13,0.45) 55%,rgba(11,15,13,0.2) 100%);
  pointer-events:none;
}
.hero-card-content{
  position:relative;z-index:1;
  padding:28px 24px 24px;
}
.hero-card-top{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:14px;
}
.hero-live-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;font-size:0.78rem;font-weight:700;
  background:var(--color-emphasis);color:#fff;
  border-radius:var(--radius-pill);
}
.hero-countdown{
  font-family:var(--font-num);
  font-size:2.2rem;font-weight:800;color:var(--color-accent);
  letter-spacing:0.03em;line-height:1;
}
.hero-card-title{
  font-size:1.25rem;font-weight:700;
  margin-bottom:4px;
  color:#fff;
}
.hero-card-meta{
  font-size:0.88rem;color:var(--color-text-muted);
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:6px;
}
.hero-card-meta span{
  display:inline-flex;align-items:center;gap:4px;
}
.hero-card-meta .dot-sep{color:rgba(241,255,240,0.3)}
/* ===== 快讯条 ===== */
.ticker-section{
  background:var(--color-surface-2);
  border-top:1px solid rgba(200,240,76,0.15);
  border-bottom:1px solid rgba(200,240,76,0.15);
}
.ticker-scroll{
  display:flex;gap:14px;overflow-x:auto;
  padding:14px 0;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;
}
.ticker-scroll::-webkit-scrollbar{display:none}
.ticker-item{
  flex-shrink:0;display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;
  background:rgba(200,240,76,0.07);
  border:1px solid rgba(200,240,76,0.15);
  border-radius:var(--radius-pill);
  font-size:0.85rem;color:var(--color-text-muted);
  white-space:nowrap;
}
.ticker-item .ticker-time{
  font-family:var(--font-num);
  font-weight:700;color:var(--color-accent);
  font-size:0.9rem;
}
.ticker-item .live-tag{
  color:var(--color-danger);font-weight:700;font-size:0.78rem;
}
.ticker-item .update-tag{
  color:var(--color-success);font-weight:700;font-size:0.78rem;
}
/* ===== 服务矩阵 ===== */
.matrix-grid{
  display:grid;grid-template-columns:repeat(6,1fr);
  gap:18px;
}
.matrix-item{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition-base);
  display:flex;flex-direction:column;
}
.matrix-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-card);
  border-color:rgba(200,240,76,0.4);
}
.matrix-item.large{grid-column:span 3}
.matrix-item.medium{grid-column:span 3}
.matrix-item.small{grid-column:span 2}
.matrix-img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  background:var(--color-surface-2);
}
.matrix-body{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column}
.matrix-title{
  font-size:1.12rem;font-weight:700;
  margin-bottom:6px;line-height:1.35;
}
.matrix-desc{
  font-size:0.88rem;color:var(--color-text-muted);
  line-height:1.6;margin-bottom:10px;flex:1;
}
.matrix-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:0.78rem;color:var(--color-text-muted);
}
.matrix-meta .count{
  font-family:var(--font-num);
  color:var(--color-accent);
  font-weight:700;
  font-size:0.85rem;
}
.matrix-meta .status-chip{
  padding:3px 10px;font-size:0.72rem;font-weight:600;
  border-radius:var(--radius-pill);
  background:rgba(61,220,151,0.12);
  color:var(--color-success);
}
.matrix-meta .status-chip.live{
  background:rgba(255,91,95,0.15);
  color:var(--color-danger);
}
/* ===== 直播与点播专题 ===== */
.live-section{
  background:var(--color-surface);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  border:1px solid var(--color-border);
}
.live-timeline{
  display:flex;gap:20px;overflow-x:auto;
  padding:16px 0;scrollbar-width:thin;
}
.live-timeline::-webkit-scrollbar{height:4px}
.live-timeline::-webkit-scrollbar-thumb{background:var(--color-surface-2);border-radius:4px}
.timeline-item{
  flex-shrink:0;width:180px;
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:16px 14px;
  transition:all var(--transition-base);
}
.timeline-item:hover{border-color:rgba(200,240,76,0.4)}
.timeline-time{
  font-family:var(--font-num);
  font-size:1.1rem;font-weight:700;color:var(--color-accent);
  margin-bottom:6px;
}
.timeline-topic{
  font-size:0.9rem;font-weight:600;line-height:1.45;margin-bottom:4px;
}
.timeline-speaker{
  font-size:0.76rem;color:var(--color-text-muted);
  margin-bottom:8px;
}
.timeline-btn{
  font-size:0.78rem;font-weight:600;
  color:var(--color-accent);
  padding:4px 0;
  border-bottom:1px solid rgba(200,240,76,0.3);
  transition:all var(--transition-base);
}
.timeline-btn:hover{color:#fff}
.vod-list{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:18px;margin-top:28px;
}
.vod-card{
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:all var(--transition-base);
}
.vod-card:hover{
  transform:translateY(-4px);
  border-color:rgba(200,240,76,0.4);
  box-shadow:var(--shadow-card);
}
.vod-img-wrap{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  background:var(--color-surface-2);
}
.vod-img-wrap img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--transition-base);
}
.vod-card:hover .vod-img-wrap img{transform:scale(1.02)}
.vod-body{padding:14px 16px 16px}
.vod-tags{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap}
.vod-tag{
  font-size:0.68rem;font-weight:600;
  padding:3px 10px;border-radius:var(--radius-pill);
  background:rgba(200,240,76,0.08);
  color:var(--color-accent);
}
.vod-title{
  font-size:0.95rem;font-weight:700;line-height:1.45;
  margin-bottom:6px;
}
.vod-meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:0.76rem;color:var(--color-text-muted);
}
.vod-meta .price{
  font-family:var(--font-num);
  font-weight:700;color:var(--color-gold);
  font-size:0.9rem;
}
/* ===== 优势数据条 ===== */
.stats-section{
  background:var(--color-primary);
  position:relative;overflow:hidden;
}
.stats-section::before{
  content:'';position:absolute;top:0;right:0;bottom:0;width:45%;
  background:linear-gradient(to bottom left,transparent 49.5%,rgba(200,240,76,0.06) 50%);
  pointer-events:none;
}
.stats-flex{
  display:flex;flex-wrap:wrap;gap:30px;
  justify-content:space-between;align-items:center;
}
.stat-item{
  flex:1;min-width:140px;
  text-align:center;
}
.stat-number{
  font-family:var(--font-num);
  font-size:clamp(2rem,4vw,3.2rem);
  font-weight:800;color:var(--color-accent);
  line-height:1;letter-spacing:0.02em;
  margin-bottom:6px;
}
.stat-label{
  font-size:0.86rem;color:var(--color-text-muted);
}
/* ===== 学习方案流程 ===== */
.flow-timeline{
  max-width:760px;margin:0 auto;
  position:relative;padding-left:32px;
}
.flow-timeline::before{
  content:'';position:absolute;left:8px;top:8px;bottom:8px;
  width:2px;background:rgba(200,240,76,0.25);
  border-radius:1px;
}
.flow-step{
  position:relative;padding:0 0 30px 20px;
}
.flow-step:last-child{padding-bottom:0}
.flow-step::before{
  content:'';position:absolute;left:-32px;top:4px;
  width:16px;height:16px;border-radius:50%;
  border:2px solid var(--color-accent);
  background:var(--color-bg);
  box-shadow:0 0 0 4px rgba(200,240,76,0.12);
}
.flow-step-title{
  font-size:1.05rem;font-weight:700;margin-bottom:4px;
}
.flow-step-desc{
  font-size:0.9rem;color:var(--color-text-muted);
  max-width:520px;line-height:1.65;
}
/* ===== 案例墙 ===== */
.case-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:22px;
}
.case-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:22px;
  transition:all var(--transition-base);
  display:flex;flex-direction:column;gap:12px;
}
.case-card:hover{
  border-color:rgba(200,240,76,0.35);
  transform:translateY(-3px);
  box-shadow:var(--shadow-card);
}
.case-tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:0.76rem;font-weight:600;
  color:var(--color-accent);
  background:rgba(200,240,76,0.08);
  padding:4px 12px;border-radius:var(--radius-pill);
  align-self:flex-start;
}
.case-text{
  font-size:0.95rem;color:var(--color-text);
  line-height:1.7;
}
.case-result{
  font-size:0.86rem;color:var(--color-text-muted);
  border-top:1px solid var(--color-border);
  padding-top:10px;
}
.case-result .highlight{
  color:var(--color-success);font-weight:600;
}
/* ===== 热门专题 ===== */
.topic-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.topic-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:18px;
  transition:all var(--transition-base);
  cursor:pointer;
}
.topic-card:hover{
  border-color:rgba(200,240,76,0.4);
  background:rgba(12,59,46,0.5);
  transform:translateY(-3px);
}
.topic-name{
  font-weight:700;font-size:0.95rem;margin-bottom:4px;
}
.topic-count{
  font-size:0.78rem;color:var(--color-text-muted);
}
/* ===== 资讯列表 ===== */
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{
  display:flex;gap:20px;padding:18px 0;
  border-bottom:1px solid var(--color-border);
  transition:all var(--transition-base);
  align-items:flex-start;
}
.news-item:last-child{border-bottom:none}
.news-item:hover{padding-left:8px}
.news-date{
  flex-shrink:0;width:56px;text-align:center;
  background:var(--color-surface-2);
  border-radius:var(--radius-sm);
  padding:8px 0;
}
.news-date .d{
  font-family:var(--font-num);
  font-size:1.4rem;font-weight:800;color:var(--color-accent);
  line-height:1;
}
.news-date .m{
  font-size:0.68rem;color:var(--color-text-muted);
}
.news-content{flex:1}
.news-title{
  font-size:0.98rem;font-weight:700;line-height:1.5;
  margin-bottom:4px;
  transition:color var(--transition-base);
}
.news-item:hover .news-title{color:var(--color-accent)}
.news-summary{
  font-size:0.86rem;color:var(--color-text-muted);
  line-height:1.65;
}
/* ===== 合作伙伴 ===== */
.partner-scroll{
  display:flex;gap:14px;overflow-x:auto;
  padding:10px 0;scrollbar-width:none;
}
.partner-scroll::-webkit-scrollbar{display:none}
.partner-item{
  flex-shrink:0;display:flex;align-items:center;justify-content:center;
  padding:16px 28px;min-width:140px;
  background:rgba(241,255,240,0.04);
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  font-weight:600;font-size:0.84rem;
  color:var(--color-text-muted);
  transition:all var(--transition-base);
  filter:grayscale(0.8);
}
.partner-item:hover{
  filter:grayscale(0);
  border-color:rgba(200,240,76,0.3);
  color:var(--color-text);
}
/* ===== FAQ ===== */
.faq-container{
  max-width:800px;margin:0 auto;
}
.faq-item{
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  margin-bottom:12px;
  background:var(--color-surface);
  overflow:hidden;
  transition:all var(--transition-base);
}
.faq-item.active{
  border-color:rgba(200,240,76,0.35);
}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;cursor:pointer;font-weight:600;
  font-size:0.95rem;gap:12px;
  text-align:left;width:100%;
}
.faq-question .faq-icon{
  flex-shrink:0;font-size:1.3rem;color:var(--color-accent);
  transition:transform var(--transition-base);
  line-height:1;
}
.faq-item.active .faq-icon{transform:rotate(45deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height 0.35s ease;
  padding:0 20px;
  color:var(--color-text-muted);
  font-size:0.9rem;line-height:1.7;
}
.faq-item.active .faq-answer{
  max-height:200px;padding:0 20px 18px;
}
/* ===== 保障条 ===== */
.guarantee-flex{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:center;
}
.guarantee-item{
  display:flex;align-items:center;gap:10px;
  padding:14px 22px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-pill);
  font-size:0.9rem;font-weight:500;
  transition:all var(--transition-base);
}
.guarantee-item:hover{
  border-color:rgba(200,240,76,0.3);
}
.guarantee-item .g-icon{
  width:22px;height:22px;flex-shrink:0;
  color:var(--color-accent);
  display:flex;align-items:center;justify-content:center;
}
/* ===== CTA 转化区 ===== */
.cta-section{
  background:var(--color-surface-2);
  border-radius:var(--radius-lg);
  border:1px solid rgba(200,240,76,0.2);
  padding:40px;
  position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;top:-40px;right:-40px;
  width:180px;height:180px;border-radius:50%;
  background:rgba(200,240,76,0.06);
  pointer-events:none;
}
.cta-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:36px;align-items:center;
}
.cta-title{
  font-size:1.6rem;font-weight:800;line-height:1.3;
  margin-bottom:12px;
}
.cta-desc{
  font-size:0.95rem;color:var(--color-text-muted);
  line-height:1.7;
}
.cta-form{display:flex;flex-direction:column;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field label{
  font-size:0.82rem;font-weight:600;color:var(--color-text-muted);
}
.form-field input,.form-field select,.form-field textarea{
  padding:11px 14px;
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  color:var(--color-text);
  font-size:0.9rem;
  transition:all var(--transition-base);
}
.form-field input::placeholder,.form-field textarea::placeholder{
  color:rgba(183,197,189,0.6);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;
  border-color:var(--color-accent);
  box-shadow:0 0 0 3px rgba(200,240,76,0.2);
}
.form-field textarea{min-height:80px;resize:vertical}
.form-submit{
  padding:13px 28px;font-size:0.95rem;font-weight:700;
  background:var(--color-accent);color:#0C3B2E;
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
  align-self:flex-start;
}
.form-submit:hover{
  background:#fff;color:#0C3B2E;
  box-shadow:0 0 24px rgba(200,240,76,0.35);
}
.form-submit:focus-visible{
  box-shadow:0 0 0 4px rgba(200,240,76,0.3);
}
/* ===== 页脚 ===== */
.footer{
  background:var(--color-bg);
  border-top:1px solid var(--color-border);
  padding:56px 0 24px;
  margin-top:40px;
}
.footer-top{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;
  gap:36px;margin-bottom:36px;
}
.footer-brand{
  font-size:1.3rem;font-weight:800;
  display:flex;align-items:center;gap:8px;margin-bottom:12px;
}
.footer-brand .logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--color-accent);display:inline-block;
}
.footer-desc{
  font-size:0.85rem;color:var(--color-text-muted);
  line-height:1.7;max-width:280px;
}
.footer-col h4{
  font-size:0.9rem;font-weight:700;margin-bottom:14px;
  color:var(--color-text);
}
.footer-col a{
  display:block;font-size:0.84rem;color:var(--color-text-muted);
  padding:4px 0;transition:color var(--transition-base);
}
.footer-col a:hover{color:var(--color-accent)}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding-top:18px;
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;
  font-size:0.78rem;color:var(--color-text-muted);
}
/* ===== 板块通用标题 ===== */
.section-head{margin-bottom:34px}
.section-label{
  display:inline-flex;align-items:center;gap:6px;
  font-size:0.8rem;font-weight:700;
  color:var(--color-accent);
  letter-spacing:0.06em;
  text-transform:uppercase;
  margin-bottom:10px;
}
.section-label::before{
  content:'';width:18px;height:2px;background:var(--color-accent);
  display:inline-block;
}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.3rem);
  font-weight:800;line-height:1.3;
  margin-bottom:10px;
}
.section-desc{
  font-size:0.98rem;color:var(--color-text-muted);
  max-width:640px;line-height:1.75;
}
/* ===== 响应式 ===== */
@media(max-width:1024px){
  .hero-container{grid-template-columns:1fr;gap:32px}
  .hero-visual{min-height:320px}
  .matrix-grid{grid-template-columns:repeat(4,1fr)}
  .matrix-item.large,.matrix-item.medium{grid-column:span 2}
  .matrix-item.small{grid-column:span 2}
  .vod-list{grid-template-columns:repeat(2,1fr)}
  .topic-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:24px}
  .footer-top{grid-template-columns:1fr 1fr;gap:24px}
  .case-grid{grid-template-columns:1fr}
  .section{padding:var(--section-pad-mobile)}
}
@media(max-width:767px){
  .dock-nav{height:58px;padding:0 14px}
  .dock-menu{display:none}
  .dock-burger{display:flex}
  .dock-cta{display:none}
  .dock-actions .dock-search-btn{display:none}
  .dock-search-btn.mobile-show{display:flex}
  .hero{padding-top:110px;min-height:auto;padding-bottom:40px}
  .hero h1{font-size:1.9rem}
  .hero-sub{font-size:0.98rem}
  .hero-cta-row{flex-direction:column;align-items:flex-start}
  .btn-primary,.btn-outline{width:100%;justify-content:center}
  .hero-visual{min-height:240px;border-radius:var(--radius-md)}
  .hero-card-content{padding:18px 16px}
  .hero-countdown{font-size:1.5rem}
  .hero-watermark{font-size:4rem;top:80px;right:8px}
  .stats-flex{flex-direction:column;gap:20px;align-items:stretch}
  .stat-item{flex:1}
  .form-row{grid-template-columns:1fr}
  .matrix-grid{grid-template-columns:1fr}
  .matrix-item.large,.matrix-item.medium,.matrix-item.small{grid-column:span 1}
  .vod-list{grid-template-columns:1fr}
  .live-section{padding:20px 16px}
  .topic-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column;gap:10px}
  .news-date{width:auto;display:inline-flex;gap:6px;padding:6px 12px}
  .footer-top{grid-template-columns:1fr}
  .cta-section{padding:24px}
  .guarantee-flex{flex-direction:column;align-items:stretch}
  .guarantee-item{justify-content:center}
  .dock-drawer{top:66px}
  .section{padding:44px 0}
}
@media(max-width:480px){
  .container{padding:0 16px}
  .hero h1{font-size:1.7rem}
  .hero-sub{font-size:0.92rem}
  .hero-trust{flex-direction:column;gap:8px}
  .ticker-item{font-size:0.78rem}
  .stat-number{font-size:1.8rem}
  .cta-title{font-size:1.3rem}
}

/* roulang page: category1 */
:root{
  --color-bg:#0B0F0D;
  --color-surface:#112019;
  --color-surface-2:#0C3B2E;
  --color-primary:#0C3B2E;
  --color-accent:#C8F04C;
  --color-emphasis:#FF6B3D;
  --color-gold:#F4C95D;
  --color-text:#F5F7F0;
  --color-text-muted:#B7C5BD;
  --color-border:rgba(241,255,240,0.12);
  --color-success:#3DDC97;
  --color-danger:#FF5A5F;
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --shadow-card:0 10px 30px rgba(0,0,0,0.35);
  --shadow-dock:0 12px 40px rgba(0,0,0,0.45);
  --font-cn:system-ui,-apple-system,PingFang SC,HarmonyOS Sans SC,Microsoft YaHei,sans-serif;
  --font-num:'Barlow Condensed','DIN Alternate',Oswald,Impact,sans-serif;
  --transition-fast:0.2s;
  --transition-base:0.25s;
  --container-max:1200px;
  --section-pad-desktop:72px 0;
  --section-pad-mobile:48px 0;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-cn);
  background:var(--color-bg);
  color:var(--color-text);
  line-height:1.65;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  margin:0;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition-base)}
a:hover{color:var(--color-accent)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none;color:inherit}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad-desktop)}

/* ===== 浮动 Dock 导航 ===== */
.dock-header{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:var(--container-max);
  z-index:1000;
}
.dock-nav{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;padding:0 22px;
  background:rgba(12,18,15,0.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--color-border);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-dock);
  gap:12px;
}
.dock-logo{
  font-weight:800;font-size:1.15rem;letter-spacing:0.01em;
  color:var(--color-text);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.dock-logo .logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--color-accent);display:inline-block;flex-shrink:0;
}
.dock-menu{
  display:flex;align-items:center;gap:4px;
  list-style:none;margin:0;padding:0;
}
.dock-menu li a{
  display:inline-flex;align-items:center;
  padding:8px 14px;font-size:0.9rem;font-weight:500;
  color:var(--color-text-muted);
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
  white-space:nowrap;
}
.dock-menu li a:hover,
.dock-menu li a.active{
  color:var(--color-text);
  background:rgba(200,240,76,0.12);
}
.dock-menu li a.active{
  color:var(--color-accent);
  background:rgba(200,240,76,0.15);
}
.dock-actions{
  display:flex;align-items:center;gap:8px;
}
.dock-search-btn{
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(241,255,240,0.06);
  border:1px solid var(--color-border);
  transition:all var(--transition-base);
}
.dock-search-btn:hover{
  background:rgba(200,240,76,0.12);
  border-color:var(--color-accent);
}
.dock-cta{
  padding:9px 20px;font-size:0.88rem;font-weight:700;
  background:var(--color-accent);color:#0C3B2E;
  border-radius:var(--radius-pill);white-space:nowrap;
  transition:all var(--transition-base);
  display:inline-flex;align-items:center;gap:6px;
}
.dock-cta:hover{
  background:#fff;color:#0C3B2E;
  box-shadow:0 0 20px rgba(200,240,76,0.35);
}
.dock-burger{
  display:none;width:40px;height:40px;border-radius:50%;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:rgba(241,255,240,0.06);
  border:1px solid var(--color-border);
  transition:all var(--transition-base);
}
.dock-burger span{
  display:block;width:18px;height:2px;background:var(--color-text);
  border-radius:2px;transition:all var(--transition-base);
}
.dock-drawer{
  display:none;position:fixed;top:76px;left:16px;right:16px;
  background:rgba(12,18,15,0.97);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  padding:16px;z-index:999;
  flex-direction:column;gap:4px;
  box-shadow:var(--shadow-dock);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.dock-drawer.open{display:flex}
.dock-drawer a{
  padding:12px 16px;font-size:1rem;font-weight:500;
  color:var(--color-text-muted);border-radius:var(--radius-sm);
  transition:all var(--transition-base);
}
.dock-drawer a:hover,.dock-drawer a.active{
  color:var(--color-accent);background:rgba(200,240,76,0.1);
}
.dock-drawer .dock-cta{
  margin-top:8px;justify-content:center;text-align:center;
}

/* ===== 分类头部区 ===== */
.cat-hero{
  padding-top:160px;
  padding-bottom:48px;
  position:relative;
  background:var(--color-bg);
  overflow:hidden;
}
.cat-hero::before{
  content:'';position:absolute;top:0;left:0;right:0;height:300px;
  background:radial-gradient(ellipse at 70% 20%,rgba(200,240,76,0.06),transparent 60%);
  pointer-events:none;
}
.cat-breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:0.85rem;color:var(--color-text-muted);
  margin-bottom:20px;
}
.cat-breadcrumb a{color:var(--color-text-muted);transition:color var(--transition-base)}
.cat-breadcrumb a:hover{color:var(--color-accent)}
.cat-breadcrumb .sep{color:var(--color-border)}
.cat-breadcrumb .current{color:var(--color-accent);font-weight:600}
.cat-hero h1{
  font-size:clamp(1.8rem,3.2vw,2.8rem);
  font-weight:800;line-height:1.2;
  letter-spacing:-0.01em;
  color:var(--color-text);
  margin-bottom:16px;
}
.cat-hero h1 .accent-text{color:var(--color-accent)}
.cat-hero-desc{
  font-size:1.05rem;
  color:var(--color-text-muted);
  max-width:680px;
  line-height:1.75;
  margin-bottom:22px;
}
.cat-chips{
  display:flex;flex-wrap:wrap;gap:10px;
}
.cat-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 16px;font-size:0.85rem;font-weight:500;
  background:rgba(200,240,76,0.08);
  border:1px solid rgba(200,240,76,0.2);
  border-radius:var(--radius-pill);
  color:var(--color-accent);
  transition:all var(--transition-base);
}
.cat-chip:hover{
  background:rgba(200,240,76,0.15);
  border-color:var(--color-accent);
}

/* ===== 筛选工具栏 + 课程列表主体 ===== */
.course-list-section{
  background:var(--color-bg);
  padding:32px 0 72px;
}
.filter-toolbar{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;
  padding:18px 20px;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  margin-bottom:28px;
}
.filter-group{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.filter-group .filter-label{
  font-size:0.85rem;font-weight:600;color:var(--color-text-muted);
  margin-right:2px;
}
.filter-btn{
  padding:7px 16px;font-size:0.85rem;font-weight:500;
  color:var(--color-text-muted);
  background:rgba(241,255,240,0.04);
  border:1px solid var(--color-border);
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
}
.filter-btn:hover{
  color:var(--color-text);
  border-color:rgba(200,240,76,0.4);
}
.filter-btn.active{
  color:#0C3B2E;
  background:var(--color-accent);
  border-color:var(--color-accent);
  font-weight:700;
}
.filter-sort{
  display:flex;align-items:center;gap:8px;
}
.filter-sort select{
  padding:8px 14px;font-size:0.85rem;font-weight:500;
  color:var(--color-text);
  background:var(--color-surface-2);
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  outline:none;
  cursor:pointer;
  transition:border-color var(--transition-base);
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%23B7C5BD' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 12px center;
  padding-right:32px;
}
.filter-sort select:focus{
  border-color:var(--color-accent);
  box-shadow:0 0 0 3px rgba(200,240,76,0.2);
}
.course-list-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.course-card{
  display:flex;flex-direction:column;
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition-base);
  position:relative;
}
.course-card:hover{
  transform:translateY(-4px);
  border-color:var(--color-accent);
  box-shadow:0 16px 40px rgba(0,0,0,0.4);
}
.course-card-media{
  position:relative;
  aspect-ratio:16/7;
  overflow:hidden;
  background:var(--color-surface-2);
}
.course-card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.5s ease;
}
.course-card:hover .course-card-media img{
  transform:scale(1.02);
}
.course-card-media .course-format{
  position:absolute;top:12px;left:12px;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;font-size:0.75rem;font-weight:700;
  border-radius:var(--radius-pill);
  background:rgba(12,18,15,0.8);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border:1px solid rgba(241,255,240,0.2);
  color:var(--color-accent);
}
.course-card-media .course-status{
  position:absolute;top:12px;right:12px;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;font-size:0.75rem;font-weight:600;
  border-radius:var(--radius-pill);
  background:rgba(12,18,15,0.8);
  border:1px solid rgba(241,255,240,0.2);
  color:var(--color-success);
}
.course-status-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--color-success);
  animation:pulse 1.6s infinite;
}
.course-card-body{
  padding:18px 20px 16px;
  flex:1;
  display:flex;flex-direction:column;
}
.course-card-tags{
  display:flex;flex-wrap:wrap;gap:6px;
  margin-bottom:10px;
}
.course-tag{
  font-size:0.75rem;font-weight:500;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  background:rgba(200,240,76,0.08);
  color:var(--color-accent);
  border:1px solid rgba(200,240,76,0.15);
}
.course-tag.orange{
  background:rgba(255,107,61,0.1);
  color:var(--color-emphasis);
  border-color:rgba(255,107,61,0.2);
}
.course-tag.gold{
  background:rgba(244,201,93,0.1);
  color:var(--color-gold);
  border-color:rgba(244,201,93,0.2);
}
.course-card-title{
  font-size:1.12rem;font-weight:700;
  color:var(--color-text);
  margin-bottom:8px;
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.course-card-title a{color:inherit}
.course-card-title a:hover{color:var(--color-accent)}
.course-card-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:0.82rem;color:var(--color-text-muted);
  margin-bottom:10px;
}
.course-card-meta span{
  display:inline-flex;align-items:center;gap:4px;
}
.course-meta-icon{
  width:14px;height:14px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--color-accent);
}
.course-card-bottom{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--color-border);
}
.course-price{
  font-family:var(--font-num);
  font-size:1.1rem;font-weight:800;
  color:var(--color-accent);
}
.course-price .price-label{
  font-size:0.75rem;font-weight:400;
  color:var(--color-text-muted);
  font-family:var(--font-cn);
}
.course-learners{
  display:inline-flex;align-items:center;gap:5px;
  font-size:0.8rem;color:var(--color-text-muted);
}
.course-learners .num{
  font-family:var(--font-num);
  font-weight:700;
  color:var(--color-text);
}
.list-more-wrap{
  display:flex;justify-content:center;
  margin-top:32px;
}
.list-more-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;font-size:0.9rem;font-weight:600;
  color:var(--color-text-muted);
  background:transparent;
  border:1px solid var(--color-border);
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
}
.list-more-btn:hover{
  color:var(--color-accent);
  border-color:var(--color-accent);
  background:rgba(200,240,76,0.06);
}

/* ===== 热门专题/直播预告横向支撑 ===== */
.live-scroll-section{
  background:var(--color-surface);
  padding:56px 0;
}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  flex-wrap:wrap;gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(1.5rem,2.4vw,2.2rem);
  font-weight:800;line-height:1.3;
  color:var(--color-text);
}
.section-head h2 .accent-text{color:var(--color-accent)}
.section-head .section-sub{
  font-size:0.95rem;color:var(--color-text-muted);
  max-width:420px;
  line-height:1.65;
}
.live-scroll-track{
  display:flex;gap:16px;
  overflow-x:auto;
  padding-bottom:16px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.live-scroll-track::-webkit-scrollbar{
  height:4px;
}
.live-scroll-track::-webkit-scrollbar-track{
  background:rgba(241,255,240,0.04);
  border-radius:4px;
}
.live-scroll-track::-webkit-scrollbar-thumb{
  background:rgba(200,240,76,0.3);
  border-radius:4px;
}
.live-mini-card{
  flex:0 0 300px;
  min-width:280px;
  background:var(--color-bg);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  overflow:hidden;
  scroll-snap-align:start;
  transition:all var(--transition-base);
}
.live-mini-card:hover{
  border-color:var(--color-accent);
  transform:translateY(-3px);
  box-shadow:0 10px 28px rgba(0,0,0,0.3);
}
.live-mini-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--color-surface-2);
}
.live-mini-media img{
  width:100%;height:100%;object-fit:cover;
}
.live-mini-badge{
  position:absolute;top:10px;left:10px;
  display:inline-flex;align-items:center;gap:4px;
  padding:3px 10px;font-size:0.72rem;font-weight:700;
  border-radius:var(--radius-pill);
  background:rgba(255,107,61,0.9);
  color:#fff;
}
.live-mini-badge .live-dot{
  width:6px;height:6px;border-radius:50%;
  background:#fff;animation:pulse 1.4s infinite;
}
.live-mini-body{
  padding:14px 16px;
}
.live-mini-title{
  font-size:0.95rem;font-weight:700;
  color:var(--color-text);
  margin-bottom:8px;
  line-height:1.4;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.live-mini-info{
  display:flex;align-items:center;justify-content:space-between;
  font-size:0.78rem;color:var(--color-text-muted);
}
.live-mini-info .live-time{
  font-family:var(--font-num);
  font-weight:600;
  color:var(--color-gold);
}

/* ===== 讲师/机构支撑板块 ===== */
.teacher-section{
  background:var(--color-bg);
  padding:56px 0;
}
.teacher-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.teacher-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:18px 16px;
  text-align:center;
  transition:all var(--transition-base);
}
.teacher-card:hover{
  border-color:var(--color-accent);
  transform:translateY(-3px);
}
.teacher-avatar{
  width:52px;height:52px;border-radius:50%;
  background:rgba(200,240,76,0.12);
  border:1px solid rgba(200,240,76,0.25);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 10px;
  font-size:1.3rem;font-weight:700;
  color:var(--color-accent);
}
.teacher-name{
  font-size:0.95rem;font-weight:700;
  color:var(--color-text);
  margin-bottom:3px;
}
.teacher-role{
  font-size:0.8rem;color:var(--color-text-muted);
  margin-bottom:6px;
}
.teacher-tags{
  display:flex;flex-wrap:wrap;gap:4px;justify-content:center;
}
.teacher-tag{
  font-size:0.7rem;padding:2px 8px;
  border-radius:var(--radius-pill);
  background:rgba(241,255,240,0.06);
  color:var(--color-text-muted);
  border:1px solid var(--color-border);
}

/* ===== 学习效果/数据支撑 ===== */
.stats-mini-section{
  background:var(--color-surface-2);
  padding:48px 0;
  border-top:1px solid rgba(200,240,76,0.15);
  border-bottom:1px solid rgba(200,240,76,0.15);
}
.stats-mini-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:24px;
  text-align:center;
}
.stats-mini-item{
  padding:16px 12px;
}
.stats-mini-num{
  font-family:var(--font-num);
  font-size:2.6rem;
  font-weight:800;
  color:var(--color-accent);
  line-height:1.1;
  letter-spacing:0.01em;
}
.stats-mini-label{
  font-size:0.88rem;
  color:var(--color-text-muted);
  margin-top:6px;
  line-height:1.5;
}

/* ===== 相关分类入口 ===== */
.related-cats-section{
  background:var(--color-bg);
  padding:56px 0;
}
.related-cats-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.related-cat-card{
  background:var(--color-surface);
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  padding:20px;
  display:flex;flex-direction:column;
  gap:8px;
  transition:all var(--transition-base);
}
.related-cat-card:hover{
  border-color:var(--color-accent);
  transform:translateY(-3px);
  box-shadow:0 10px 28px rgba(0,0,0,0.3);
}
.related-cat-name{
  font-size:1.05rem;font-weight:700;
  color:var(--color-text);
}
.related-cat-info{
  display:flex;align-items:center;justify-content:space-between;
  font-size:0.82rem;color:var(--color-text-muted);
}
.related-cat-count{
  font-family:var(--font-num);
  font-weight:600;
  color:var(--color-text-muted);
}
.related-cat-arrow{
  display:inline-flex;align-items:center;gap:4px;
  font-size:0.82rem;font-weight:600;
  color:var(--color-accent);
  transition:gap var(--transition-base);
}
.related-cat-card:hover .related-cat-arrow{
  gap:8px;
}

/* ===== 资讯/干货支撑 ===== */
.news-list-section{
  background:var(--color-surface);
  padding:56px 0;
}
.news-list{
  display:flex;flex-direction:column;gap:0;
}
.news-list-item{
  display:flex;align-items:center;gap:18px;
  padding:16px 18px;
  border-bottom:1px solid var(--color-border);
  transition:all var(--transition-base);
  border-radius:var(--radius-sm);
}
.news-list-item:hover{
  background:rgba(200,240,76,0.04);
}
.news-date-badge{
  flex-shrink:0;
  width:52px;height:52px;
  background:var(--color-surface-2);
  border:1px solid var(--color-border);
  border-radius:var(--radius-sm);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.news-date-badge .day{
  font-family:var(--font-num);
  font-size:1.3rem;font-weight:800;
  color:var(--color-accent);
  line-height:1;
}
.news-date-badge .month{
  font-size:0.7rem;font-weight:600;
  color:var(--color-text-muted);
}
.news-list-content{
  flex:1;
  min-width:0;
}
.news-list-title{
  font-size:0.98rem;font-weight:600;
  color:var(--color-text);
  line-height:1.45;
  margin-bottom:4px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-list-title a{color:inherit}
.news-list-title a:hover{color:var(--color-accent)}
.news-list-desc{
  font-size:0.83rem;color:var(--color-text-muted);
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

/* ===== 转化 CTA / 学习咨询 ===== */
.cta-compact-section{
  background:var(--color-bg);
  padding:56px 0;
}
.cta-compact-card{
  display:grid;grid-template-columns:1fr auto;
  align-items:center;gap:24px;
  background:linear-gradient(135deg,var(--color-surface-2),var(--color-surface));
  border:1px solid rgba(200,240,76,0.25);
  border-radius:var(--radius-lg);
  padding:32px 36px;
}
.cta-compact-text h3{
  font-size:1.4rem;font-weight:800;
  color:var(--color-text);
  margin-bottom:6px;
}
.cta-compact-text p{
  font-size:0.92rem;color:var(--color-text-muted);
  line-height:1.6;
}
.cta-compact-btn{
  flex-shrink:0;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;font-size:0.95rem;font-weight:700;
  background:var(--color-accent);color:#0C3B2E;
  border-radius:var(--radius-pill);
  transition:all var(--transition-base);
  white-space:nowrap;
}
.cta-compact-btn:hover{
  background:#fff;color:#0C3B2E;
  box-shadow:0 0 28px rgba(200,240,76,0.4);
}

/* ===== 页脚 ===== */
.footer{
  background:var(--color-bg);
  border-top:1px solid rgba(200,240,76,0.15);
  padding:56px 0 24px;
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  margin-bottom:32px;
}
.footer-brand{
  font-weight:800;font-size:1.2rem;
  color:var(--color-text);
  display:flex;align-items:center;gap:8px;
  margin-bottom:12px;
}
.footer-brand .logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--color-accent);display:inline-block;
}
.footer-desc{
  font-size:0.85rem;color:var(--color-text-muted);
  line-height:1.65;
  max-width:300px;
}
.footer-col h4{
  font-size:0.88rem;font-weight:700;
  color:var(--color-text);
  margin-bottom:12px;
}
.footer-col a{
  display:block;font-size:0.85rem;
  color:var(--color-text-muted);
  padding:5px 0;
  transition:all var(--transition-base);
}
.footer-col a:hover{
  color:var(--color-accent);
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;
  padding-top:20px;
  border-top:1px solid var(--color-border);
  font-size:0.78rem;color:var(--color-text-muted);
}

/* ===== 动画 ===== */
@keyframes pulse{
  0%,100%{opacity:1}
  50%{opacity:0.45}
}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .teacher-grid{grid-template-columns:repeat(3,1fr)}
  .related-cats-grid{grid-template-columns:repeat(3,1fr)}
  .course-list-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:767px){
  .dock-menu{display:none}
  .dock-search-btn{display:none}
  .dock-burger{display:flex}
  .dock-nav{height:60px;padding:0 16px}
  .dock-logo{font-size:1rem}
  .dock-cta{padding:7px 16px;font-size:0.8rem}
  .section{padding:var(--section-pad-mobile)}
  .cat-hero{padding-top:120px}
  .cat-hero h1{font-size:1.6rem}
  .cat-hero-desc{font-size:0.95rem}
  .filter-toolbar{flex-direction:column;align-items:stretch}
  .filter-group{justify-content:center}
  .filter-sort{justify-content:center}
  .course-list-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .live-mini-card{flex:0 0 85vw;min-width:0}
  .teacher-grid{grid-template-columns:1fr 1fr}
  .stats-mini-grid{grid-template-columns:1fr;gap:16px}
  .related-cats-grid{grid-template-columns:1fr}
  .news-list-item{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-compact-card{grid-template-columns:1fr;text-align:center}
  .cta-compact-btn{margin:0 auto}
  .footer-top{grid-template-columns:1fr 1fr;gap:20px}
}
@media(max-width:480px){
  .teacher-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .course-card-meta{gap:8px}
  .live-mini-card{flex:0 0 92vw}
  .stats-mini-num{font-size:2.2rem}
}

/* roulang page: index */
:root {
            --bg-primary: #16131A;
            --bg-secondary: #211A26;
            --bg-tertiary: #2A2233;
            --bg-footer: #0F0C12;
            --text-primary: #F7F3EA;
            --text-secondary: #C9C2D6;
            --text-muted: #8A819A;
            --accent: #E91E63;
            --accent-hover: #C2185B;
            --accent-soft: rgba(233, 30, 99, 0.12);
            --gold: #F5B301;
            --border-light: rgba(247, 243, 234, 0.08);
            --border-medium: rgba(247, 243, 234, 0.15);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.6);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", impact, sans-serif;
            --container-width: 1200px;
            --section-padding: 80px;
            --transition: 0.3s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-secondary);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            cursor: pointer;
        }

        button:focus-visible,
        input:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        ::selection {
            background: var(--accent);
            color: #fff;
        }

        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--bg-tertiary);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent);
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== DOCK NAV ========== */
        .dock-nav {
            position: sticky;
            top: 16px;
            z-index: 1000;
            margin: 16px auto 0;
            max-width: var(--container-width);
            width: calc(100% - 32px);
            background: rgba(33, 26, 38, 0.95);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-radius: var(--radius-pill);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 20px;
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .dock-logo .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--accent), #7B1FA2);
            border-radius: 8px;
            color: #fff;
            font-weight: 800;
            font-size: 14px;
        }
        .dock-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .dock-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .dock-menu a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-pill);
            position: relative;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .dock-menu a:hover,
        .dock-menu a.active {
            color: var(--accent);
            background: var(--accent-soft);
        }
        .dock-menu a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }

        .dock-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .dock-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: transparent;
            color: var(--text-secondary);
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .dock-search-btn:hover {
            background: var(--accent-soft);
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-primary-sm {
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            transition: all var(--transition);
        }
        .btn-primary-sm:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            width: 36px;
            height: 36px;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
        }
        .hamburger span {
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .mobile-menu {
            display: none;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 16px;
            margin-top: 8px;
            flex-direction: column;
            gap: 4px;
            border: 1px solid var(--border-light);
        }
        .mobile-menu a {
            padding: 12px 16px;
            font-size: 15px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
        }
        .mobile-menu a:hover {
            background: var(--accent-soft);
            color: var(--accent);
        }
        .mobile-menu.open {
            display: flex;
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-primary);
            margin-top: 8px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            opacity: 0.45;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(22, 19, 26, 0.7) 0%, rgba(22, 19, 26, 0.9) 60%, var(--bg-primary) 100%);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(233, 30, 99, 0.15) 0%, transparent 60%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 120px 0 80px;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--accent-soft);
            border: 1px solid rgba(233, 30, 99, 0.3);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--gold);
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }
        .hero h1 {
            font-size: clamp(30px, 5vw, 52px);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero h1 .gold-underline {
            display: inline-block;
            position: relative;
        }
        .hero h1 .gold-underline::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--gold);
            border-radius: 2px;
        }
        .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .btn-primary {
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(233, 30, 99, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(233, 30, 99, 0.45);
        }
        .btn-outline {
            padding: 14px 32px;
            border-radius: var(--radius-pill);
            background: transparent;
            color: var(--accent);
            font-weight: 700;
            font-size: 15px;
            border: 2px solid var(--accent);
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn-outline:hover {
            background: var(--accent-soft);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 36px;
            flex-wrap: wrap;
            padding: 18px 24px;
            background: rgba(33, 26, 38, 0.8);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            backdrop-filter: blur(4px);
        }
        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .hero-stat .num {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 700;
            color: var(--gold);
            line-height: 1.1;
        }
        .hero-stat .label {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 380px;
            aspect-ratio: 3/4;
        }
        .hero-card-stack .card-img {
            position: absolute;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid rgba(247, 243, 234, 0.1);
            box-shadow: var(--shadow-hover);
            transition: transform var(--transition);
        }
        .hero-card-stack .card-img:hover {
            transform: scale(1.03);
        }
        .hero-card-stack .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .hero-card-stack .card-1 {
            top: 0;
            right: 10%;
            width: 72%;
            height: 60%;
            z-index: 3;
        }
        .hero-card-stack .card-2 {
            top: 18%;
            left: 0;
            width: 55%;
            height: 55%;
            z-index: 2;
            opacity: 0.85;
        }
        .hero-card-stack .card-3 {
            bottom: 0;
            right: 0;
            width: 48%;
            height: 50%;
            z-index: 1;
            opacity: 0.7;
        }
        .play-badge {
            position: absolute;
            bottom: 12px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 5;
            background: rgba(233, 30, 99, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        /* ========== SECTION BASE ========== */
        section {
            padding: var(--section-padding) 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            color: var(--gold);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--gold);
            border-radius: 1px;
        }
        .section-title {
            font-size: clamp(22px, 3vw, 32px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        /* ========== CONTENT MATRIX (入口矩阵) ========== */
        .matrix-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .matrix-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            cursor: pointer;
        }
        .matrix-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(233, 30, 99, 0.35);
        }
        .matrix-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }
        .matrix-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition);
        }
        .matrix-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        .matrix-card .card-body {
            padding: 16px;
        }
        .matrix-tag {
            display: inline-block;
            padding: 3px 10px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            border-radius: 4px;
            margin-bottom: 8px;
        }
        .matrix-card h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .matrix-card .card-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ========== LATEST UPDATES (最新动态) ========== */
        .updates-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            background: var(--bg-secondary);
        }
        .update-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .update-row:last-child {
            border-bottom: none;
        }
        .update-row:hover {
            background: var(--bg-tertiary);
        }
        .update-row .update-date {
            font-family: var(--font-num);
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
            min-width: 60px;
            text-align: center;
            background: rgba(245, 179, 1, 0.1);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
        }
        .update-row .update-info {
            flex: 1;
        }
        .update-row .update-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .update-row .update-info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .update-row .update-status {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            white-space: nowrap;
            padding: 4px 10px;
            background: var(--accent-soft);
            border-radius: var(--radius-pill);
        }

        /* ========== FEATURED CATEGORIES (精选分类) ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 16/9;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .category-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .category-card .category-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(22, 19, 26, 0.3) 0%, rgba(22, 19, 26, 0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }
        .category-card .category-overlay h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .category-card .category-overlay p {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ========== INFORMATION (资讯) ========== */
        .info-layout {
            display: grid;
            grid-template-columns: 1.4fr 0.6fr;
            gap: 28px;
        }
        .info-main-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .info-item {
            display: flex;
            gap: 16px;
            padding: 16px;
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .info-item:hover {
            border-color: rgba(233, 30, 99, 0.3);
            background: var(--bg-tertiary);
        }
        .info-item .info-date {
            font-family: var(--font-num);
            font-size: 13px;
            color: var(--text-muted);
            min-width: 48px;
            padding-top: 2px;
        }
        .info-item .info-content h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .info-item .info-content p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }
        .info-side {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-light);
        }
        .info-side h3 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .hot-tag {
            padding: 6px 14px;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            cursor: pointer;
            transition: all var(--transition);
        }
        .hot-tag:hover {
            background: var(--accent);
            color: #fff;
        }

        /* ========== VERSION / MILESTONE ========== */
        .version-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .version-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .version-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .version-card .version-badge {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(245, 179, 1, 0.15);
            color: var(--gold);
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
        }
        .version-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .version-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ========== MULTI-DEVICE (App/多端) ========== */
        .device-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 44px;
            border: 1px solid var(--border-light);
        }
        .device-info h2 {
            font-size: clamp(20px, 2.5vw, 28px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .device-info p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .device-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .device-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            background: var(--bg-tertiary);
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: var(--text-secondary);
            border: 1px solid var(--border-light);
        }
        .device-visual {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .device-visual .device-icon {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-md);
            background: var(--bg-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .device-visual .device-icon:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
        }

        /* ========== QUICK FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 760px;
        }
        .faq-item {
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item.active {
            border-color: rgba(233, 30, 99, 0.3);
            background: var(--bg-tertiary);
        }
        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
            gap: 12px;
        }
        .faq-question .faq-q-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 6px;
            height: 6px;
            background: var(--gold);
            border-radius: 50%;
            margin-right: 10px;
            flex-shrink: 0;
        }
        .faq-question .faq-q-text {
            flex: 1;
            display: flex;
            align-items: center;
        }
        .faq-arrow {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ========== PARTNER / TRUST ========== */
        .partner-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .partner-item {
            padding: 14px 28px;
            background: var(--bg-secondary);
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .partner-item:hover {
            border-color: rgba(233, 30, 99, 0.3);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        /* ========== SECURITY BAR ========== */
        .security-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: space-between;
            padding: 24px 28px;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
        }
        .security-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .security-item .sec-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 16px;
            flex-shrink: 0;
        }

        /* ========== FEATURED WALL (精选专题墙) ========== */
        .feature-wall {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
            grid-auto-rows: 160px;
        }
        .feature-wall .fw-item {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .feature-wall .fw-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-wall .fw-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .feature-wall .fw-item .fw-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(22, 19, 26, 0.2) 0%, rgba(22, 19, 26, 0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 12px;
        }
        .feature-wall .fw-item .fw-overlay .fw-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .feature-wall .fw-item .fw-overlay .fw-tag {
            font-size: 11px;
            color: var(--gold);
        }
        .feature-wall .fw-tall {
            grid-row: span 2;
        }
        .feature-wall .fw-wide {
            grid-column: span 2;
        }

        /* ========== HOT RANKING ========== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }
        .rank-item:last-child {
            border-bottom: none;
        }
        .rank-item:hover {
            background: var(--bg-tertiary);
        }
        .rank-num {
            font-family: var(--font-num);
            font-size: 24px;
            font-weight: 700;
            color: var(--gold);
            min-width: 40px;
            text-align: center;
        }
        .rank-item:nth-child(1) .rank-num { color: var(--gold); }
        .rank-item:nth-child(2) .rank-num { color: #C0C0C0; }
        .rank-item:nth-child(3) .rank-num { color: #CD7F32; }
        .rank-item:nth-child(n+4) .rank-num { color: var(--text-muted); }
        .rank-info {
            flex: 1;
        }
        .rank-info h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .rank-info p {
            font-size: 12px;
            color: var(--text-muted);
        }
        .rank-heat {
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 140px;
        }
        .rank-heat .heat-bar {
            flex: 1;
            height: 6px;
            background: var(--bg-tertiary);
            border-radius: 3px;
            overflow: hidden;
        }
        .rank-heat .heat-bar .heat-fill {
            height: 100%;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            border-radius: 3px;
            transition: width var(--transition);
        }
        .rank-heat .heat-pct {
            font-family: var(--font-num);
            font-size: 13px;
            font-weight: 600;
            color: var(--gold);
            min-width: 40px;
            text-align: right;
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .testimonial-stars {
            color: var(--gold);
            font-size: 14px;
            margin-bottom: 12px;
        }
        .testimonial-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .testimonial-user .avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-tertiary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--accent);
            font-size: 14px;
        }
        .testimonial-user .user-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ========== CTA FORM ========== */
        .cta-section {
            background: var(--bg-secondary);
            border-radius: var(--radius-lg);
            padding: 44px;
            text-align: center;
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--gold), var(--accent));
        }
        .cta-section h2 {
            font-size: clamp(20px, 2.5vw, 28px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cta-section p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-pill);
            color: var(--text-primary);
            font-size: 14px;
            transition: all var(--transition);
        }
        .cta-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(233, 30, 99, 0.15);
        }
        .cta-form .btn-primary {
            flex-shrink: 0;
        }

        /* ========== FOOTER ========== */
        footer {
            background: var(--bg-footer);
            padding: 60px 0 20px;
            border-top: 1px solid var(--border-light);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .footer-col h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 12px;
        }
        .footer-subscribe input {
            flex: 1;
            padding: 10px 16px;
            background: rgba(33, 26, 38, 0.8);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            color: var(--text-primary);
            font-size: 13px;
            min-width: 120px;
        }
        .footer-subscribe input:focus {
            border-color: var(--accent);
        }
        .footer-subscribe button {
            padding: 10px 20px;
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            font-size: 13px;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .footer-subscribe button:hover {
            background: var(--accent-hover);
        }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-visual {
                order: 2;
            }
            .hero-content {
                padding: 80px 0 60px;
            }
            .matrix-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .info-layout {
                grid-template-columns: 1fr;
            }
            .feature-wall {
                grid-template-columns: repeat(3, 1fr);
                grid-auto-rows: 140px;
            }
            .feature-wall .fw-wide {
                grid-column: span 2;
            }
            .device-section {
                grid-template-columns: 1fr;
                padding: 32px;
            }
            .version-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            :root {
                --section-padding: 64px;
            }
        }

        @media (max-width: 768px) {
            .dock-nav {
                padding: 8px 14px;
                width: calc(100% - 24px);
                margin-top: 12px;
            }
            .dock-menu {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .dock-actions .btn-primary-sm {
                display: none;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .hero {
                min-height: auto;
            }
            .hero-content {
                padding: 60px 0 40px;
            }
            .hero h1 {
                font-size: 26px;
            }
            .hero-stats {
                gap: 16px;
                padding: 14px 16px;
            }
            .hero-stat .num {
                font-size: 24px;
            }
            .hero-card-stack {
                max-width: 260px;
            }
            .matrix-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .feature-wall {
                grid-template-columns: repeat(2, 1fr);
                grid-auto-rows: 120px;
            }
            .feature-wall .fw-wide {
                grid-column: span 2;
            }
            .version-grid {
                grid-template-columns: 1fr;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .security-bar {
                flex-direction: column;
                gap: 14px;
                padding: 20px;
            }
            .rank-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .rank-heat {
                min-width: 100%;
                order: 3;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-form input[type="email"] {
                width: 100%;
                min-width: auto;
            }
            :root {
                --section-padding: 48px;
            }
        }

        @media (max-width: 520px) {
            .dock-nav {
                padding: 6px 10px;
            }
            .dock-logo .logo-text {
                font-size: 15px;
            }
            .container {
                padding: 0 16px;
            }
            .hero-btns {
                flex-direction: column;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 14px;
            }
            .update-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px;
            }
            .update-row .update-date {
                min-width: auto;
            }
            .feature-wall {
                grid-template-columns: 1fr;
                grid-auto-rows: 160px;
            }
            .feature-wall .fw-wide {
                grid-column: span 1;
            }
            .feature-wall .fw-tall {
                grid-row: span 1;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #16131A;
            --bg-secondary: #211A26;
            --bg-tertiary: #2A2233;
            --bg-footer: #0F0C12;
            --text-primary: #F7F3EA;
            --text-secondary: #C9C2D6;
            --text-muted: #8A819A;
            --accent: #E91E63;
            --accent-hover: #C2185B;
            --accent-soft: rgba(233, 30, 99, 0.12);
            --gold: #F5B301;
            --border-light: rgba(247, 243, 234, 0.08);
            --border-medium: rgba(247, 243, 234, 0.15);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 12px 32px rgba(0, 0, 0, 0.6);
            --shadow-dock: 0 12px 40px rgba(0, 0, 0, 0.45);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            --font-num: "DIN Alternate", "Bebas Neue", "Arial Narrow", impact, sans-serif;
            --container-width: 1200px;
            --section-padding: 72px;
            --transition: 0.3s ease;
            --transition-fast: 0.2s ease;
        }

        @media (max-width: 768px) {
            :root {
                --section-padding: 48px;
            }
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: var(--accent);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-padding) 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-gold {
            background: linear-gradient(180deg, #211A26 0%, #1A1520 100%);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        /* ===== 浮动 Dock 导航 ===== */
        .dock-header {
            position: fixed;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: var(--container-width);
            z-index: 1000;
        }

        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 66px;
            padding: 0 22px;
            background: rgba(17, 26, 25, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-dock);
            gap: 12px;
        }

        .dock-logo {
            font-weight: 800;
            font-size: 1.12rem;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .dock-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            flex-shrink: 0;
            box-shadow: 0 0 12px rgba(233, 30, 99, 0.7);
        }

        .dock-menu {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .dock-menu li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .dock-menu li a:hover,
        .dock-menu li a.active {
            color: var(--text-primary);
            background: rgba(233, 30, 99, 0.12);
        }

        .dock-menu li a.active {
            color: var(--accent);
            background: rgba(233, 30, 99, 0.18);
        }

        .dock-search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(247, 243, 234, 0.06);
            border: 1px solid var(--border-medium);
            transition: all var(--transition-fast);
            color: var(--text-secondary);
        }

        .dock-search-btn:hover {
            background: var(--accent-soft);
            border-color: var(--accent);
            color: var(--accent);
        }

        .dock-cta {
            padding: 10px 22px;
            font-size: 0.87rem;
            font-weight: 700;
            background: var(--accent);
            color: #fff;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .dock-cta:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 0 20px rgba(233, 30, 99, 0.4);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .dock-drawer {
            display: none;
            position: fixed;
            top: 74px;
            left: 16px;
            right: 16px;
            background: rgba(17, 26, 25, 0.96);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-lg);
            padding: 20px;
            z-index: 999;
            flex-direction: column;
            gap: 6px;
            box-shadow: var(--shadow-dock);
        }

        .dock-drawer.open {
            display: flex;
        }

        .dock-drawer a {
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
        }

        .dock-drawer a:hover,
        .dock-drawer a.active {
            color: var(--accent);
            background: var(--accent-soft);
        }

        /* ===== 分类页 Hero 标题区 ===== */
        .category-hero {
            padding: 120px 0 48px;
            position: relative;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
        }

        .category-hero-content {
            display: flex;
            align-items: flex-start;
            gap: 40px;
            flex-wrap: wrap;
        }

        .category-hero-text {
            flex: 1;
            min-width: 280px;
        }

        .category-hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            background: var(--accent-soft);
            border: 1px solid rgba(233, 30, 99, 0.3);
            border-radius: var(--radius-pill);
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .category-hero-tag::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--gold);
        }

        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            color: var(--text-primary);
            letter-spacing: 0.01em;
        }

        .category-hero h1 .highlight {
            color: var(--accent);
            position: relative;
        }

        .category-hero h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--gold);
            border-radius: 2px;
            opacity: 0.7;
        }

        .category-hero-desc {
            font-size: 1.05rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 540px;
        }

        .category-hero-stats {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .category-hero-stat {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .category-hero-stat strong {
            font-family: var(--font-num);
            font-size: 1.3rem;
            color: var(--gold);
            font-weight: 700;
        }

        .category-hero-visual {
            flex: 0 0 380px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            position: relative;
        }

        .category-hero-visual img {
            width: 100%;
            height: 220px;
            object-fit: cover;
        }

        .category-hero-visual-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 18px;
            background: linear-gradient(transparent, rgba(22, 19, 26, 0.9));
            font-size: 0.88rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ===== 筛选/排序工具条 ===== */
        .filter-bar-section {
            padding: 16px 0 24px;
            position: relative;
            z-index: 10;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 14px 18px;
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
        }

        .filter-tabs {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .filter-tab {
            padding: 8px 16px;
            font-size: 0.87rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-tab:hover {
            color: var(--text-primary);
            background: rgba(247, 243, 234, 0.06);
        }

        .filter-tab.active {
            color: #fff;
            background: var(--accent);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.87rem;
            color: var(--text-muted);
        }

        .filter-sort select {
            padding: 8px 32px 8px 14px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 0.87rem;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A819A' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 10px center;
            cursor: pointer;
            transition: border-color var(--transition-fast);
        }

        .filter-sort select:focus {
            outline: none;
            border-color: var(--accent);
        }

        /* ===== 卡片列表主体板块 ===== */
        .video-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            padding-top: 24px;
        }

        .video-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            position: relative;
        }

        .video-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(233, 30, 99, 0.4);
        }

        .video-card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .video-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .video-card:hover .video-card-cover img {
            transform: scale(1.04);
        }

        .video-card-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            padding: 4px 10px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 4px;
        }

        .video-card-duration {
            position: absolute;
            bottom: 10px;
            right: 10px;
            padding: 3px 8px;
            background: rgba(0, 0, 0, 0.75);
            color: #fff;
            font-size: 0.75rem;
            border-radius: 4px;
            font-family: var(--font-num);
        }

        .video-card-info {
            padding: 14px 16px 16px;
        }

        .video-card-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .video-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .video-card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== 推荐专题横条 ===== */
        .featured-banner {
            display: flex;
            gap: 24px;
            background: var(--bg-tertiary);
            border: 1px solid rgba(245, 179, 1, 0.25);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            min-height: 220px;
        }

        .featured-banner:hover {
            box-shadow: var(--shadow-hover);
            border-color: rgba(245, 179, 1, 0.5);
        }

        .featured-banner-image {
            flex: 0 0 340px;
            overflow: hidden;
        }

        .featured-banner-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .featured-banner-content {
            flex: 1;
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 8px;
        }

        .featured-banner-label {
            display: inline-block;
            font-size: 0.75rem;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 600;
        }

        .featured-banner-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
        }

        .featured-banner-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .featured-banner-btn {
            align-self: flex-start;
            margin-top: 8px;
            padding: 10px 24px;
            font-size: 0.87rem;
            font-weight: 600;
            color: var(--bg-primary);
            background: var(--gold);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
        }

        .featured-banner-btn:hover {
            background: #FFC933;
            color: var(--bg-primary);
            box-shadow: 0 0 16px rgba(245, 179, 1, 0.45);
        }

        /* ===== 榜单排名 ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 8px;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }

        .ranking-item:hover {
            background: rgba(233, 30, 99, 0.05);
            padding-left: 10px;
            border-radius: var(--radius-sm);
        }

        .ranking-number {
            flex: 0 0 40px;
            font-family: var(--font-num);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--gold);
            text-align: center;
        }

        .ranking-item:nth-child(1) .ranking-number {
            color: #FFD700;
            font-size: 2rem;
        }
        .ranking-item:nth-child(2) .ranking-number {
            color: #E8E8E8;
        }
        .ranking-item:nth-child(3) .ranking-number {
            color: #CD7F32;
        }

        .ranking-info {
            flex: 1;
            min-width: 0;
        }

        .ranking-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-progress {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .ranking-bar {
            flex: 1;
            height: 5px;
            background: var(--bg-tertiary);
            border-radius: 99px;
            overflow: hidden;
        }

        .ranking-bar-fill {
            height: 100%;
            border-radius: 99px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            transition: width var(--transition);
        }

        .ranking-percent {
            font-size: 0.75rem;
            color: var(--text-muted);
            font-family: var(--font-num);
            min-width: 36px;
            text-align: right;
        }

        /* ===== 相关分类入口 ===== */
        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 8px;
        }

        .category-tag {
            padding: 10px 20px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
        }

        .category-tag:hover {
            color: #fff;
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 观看提示 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .tip-card {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 18px;
            background: var(--bg-tertiary);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }

        .tip-card:hover {
            border-color: rgba(233, 30, 99, 0.35);
            box-shadow: var(--shadow-card);
        }

        .tip-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-soft);
            color: var(--accent);
            font-size: 1rem;
            font-weight: 700;
        }

        .tip-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .tip-text {
            font-size: 0.83rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== CTA 转化区 ===== */
        .cta-section {
            background: var(--bg-tertiary);
            border: 1px solid rgba(233, 30, 99, 0.3);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(233, 30, 99, 0.08);
        }

        .cta-section-content {
            flex: 1;
            min-width: 260px;
            position: relative;
            z-index: 1;
        }

        .cta-section-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .cta-section-desc {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        .cta-section-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary {
            padding: 12px 28px;
            font-size: 0.92rem;
            font-weight: 700;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 0 20px rgba(233, 30, 99, 0.4);
            transform: translateY(-2px);
        }

        .btn-secondary {
            padding: 12px 24px;
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--accent);
            background: transparent;
            border: 1px solid var(--accent);
            border-radius: var(--radius-pill);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: var(--accent-soft);
            color: var(--accent);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        footer {
            background: var(--bg-footer);
            padding: 56px 0 0;
            border-top: 1px solid var(--border-light);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 32px;
            padding-bottom: 36px;
        }

        .footer-brand .logo-text {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .logo-text .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .footer-brand p {
            font-size: 0.87rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-subscribe {
            display: flex;
            gap: 8px;
            margin-top: 4px;
        }

        .footer-subscribe input {
            flex: 1;
            padding: 10px 14px;
            font-size: 0.85rem;
            color: var(--text-primary);
            background: var(--bg-tertiary);
            border: 1px solid var(--border-medium);
            border-radius: var(--radius-sm);
            transition: border-color var(--transition-fast);
        }

        .footer-subscribe input:focus {
            outline: none;
            border-color: var(--accent);
        }

        .footer-subscribe input::placeholder {
            color: var(--text-muted);
        }

        .footer-subscribe button {
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .footer-subscribe button:hover {
            background: var(--accent-hover);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 18px 0;
            border-top: 1px solid var(--border-light);
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .video-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .featured-banner-image {
                flex: 0 0 240px;
            }

            .category-hero-visual {
                flex: 0 0 300px;
            }
        }

        @media (max-width: 768px) {
            .dock-menu {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .dock-nav {
                height: 58px;
                padding: 0 16px;
            }

            .dock-logo {
                font-size: 0.95rem;
            }

            .dock-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }

            .category-hero {
                padding: 90px 0 36px;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .category-hero-content {
                flex-direction: column;
                gap: 24px;
            }

            .category-hero-visual {
                flex: 0 0 auto;
                width: 100%;
            }

            .category-hero-visual img {
                height: 180px;
            }

            .video-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .featured-banner {
                flex-direction: column;
            }

            .featured-banner-image {
                flex: 0 0 auto;
                height: 160px;
            }

            .featured-banner-content {
                padding: 18px 20px;
            }

            .featured-banner-title {
                font-size: 1.15rem;
            }

            .tips-grid {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }

            .ranking-number {
                flex: 0 0 30px;
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .video-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .filter-bar {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-section-actions {
                flex-direction: column;
                width: 100%;
            }

            .cta-section-actions .btn-primary,
            .cta-section-actions .btn-secondary {
                width: 100%;
                text-align: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .category-hero-stats {
                gap: 12px;
                flex-direction: column;
            }

            .ranking-item {
                gap: 10px;
                padding: 10px 0;
            }

            .ranking-number {
                flex: 0 0 26px;
                font-size: 1.2rem;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
        }

/* roulang page: index */
:root {
            --bg: #0B0F14;
            --bg-alt: #11161C;
            --bg-deep: #06090C;
            --bg-emerald: #0E1512;
            --primary: #2EE6A8;
            --primary-bright: #39FF88;
            --accent: #F2C14E;
            --danger: #FF6B5E;
            --text: #F2F6F5;
            --text-muted: #B7C2C2;
            --text-weak: #7A8A8A;
            --border: rgba(255, 255, 255, 0.08);
            --border-mid: rgba(255, 255, 255, 0.15);
            --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            --card-shadow-hover: 0 12px 32px rgba(46, 230, 168, 0.18);
            --radius-card: 18px;
            --radius-btn: 999px;
            --radius-img: 12px;
            --radius-badge: 6px;
            --section-pad: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-num: 'DIN Condensed', 'Oswald', 'Barlow Condensed', 'Arial Narrow', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-img);
        }
        
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        
        a:hover {
            color: var(--primary);
        }
        
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }
        
        button {
            cursor: pointer;
            background: none;
            color: inherit;
        }
        
        input, select, textarea {
            width: 100%;
            background: var(--bg-alt);
            border: 1px solid var(--border-mid);
            border-radius: 12px;
            padding: 12px 16px;
            color: var(--text);
            font-size: 16px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        
        input:focus, select:focus, textarea:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 230, 168, 0.15);
            outline: none;
        }
        
        input::placeholder, textarea::placeholder {
            color: var(--text-weak);
        }
        
        a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ========== 浮动 Dock 导航 ========== */
        .site-header {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 50;
            width: auto;
            max-width: calc(100% - 48px);
        }
        
        .dock-nav {
            display: flex;
            align-items: center;
            gap: 16px;
            background: rgba(11, 15, 20, 0.72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 16px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
            transition: background var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        
        .site-header.scrolled .dock-nav {
            background: rgba(11, 15, 20, 0.9);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.55);
        }
        
        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 1.1rem;
            letter-spacing: -0.01em;
            color: var(--text);
            flex-shrink: 0;
        }
        
        .dock-logo .logo-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), #1aaf7a);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #06150f;
            font-weight: 900;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        
        .dock-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            flex-shrink: 0;
        }
        
        .dock-menu li a {
            display: inline-block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: color var(--transition), background var(--transition);
        }
        
        .dock-menu li a:hover,
        .dock-menu li a.active {
            color: var(--primary);
            background: rgba(46, 230, 168, 0.08);
        }
        
        .dock-cta {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #06150f;
            font-weight: 700;
            font-size: 0.88rem;
            padding: 10px 20px;
            border-radius: 999px;
            height: 40px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 4px 16px rgba(46, 230, 168, 0.25);
        }
        
        .dock-cta:hover {
            background: var(--accent);
            color: #0a0f0c;
            box-shadow: 0 6px 20px rgba(242, 193, 78, 0.35);
            transform: translateY(-1px);
        }
        
        .dock-cta:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(46, 230, 168, 0.2);
        }
        
        /* ========== Hero ========== */
        .hero {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 160px 0 100px;
            background-image: url('/assets/images/ff4f8f5a84c7e920.jpg');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            isolation: isolate;
        }
        
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 20, 0.6) 0%, rgba(11, 15, 20, 0.82) 55%, var(--bg) 100%);
            z-index: 1;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 40%, rgba(46, 230, 168, 0.08) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(46, 230, 168, 0.12);
            border: 1px solid rgba(46, 230, 168, 0.3);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 24px;
        }
        
        .hero-badge .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            animation: pulse 2s infinite;
        }
        
        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }
        
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.2rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--text);
        }
        
        .hero h1 .highlight {
            color: var(--primary);
            position: relative;
        }
        
        .hero h1 .highlight::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 4px;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), transparent);
            border-radius: 2px;
        }
        
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        
        .hero-desc {
            font-size: 0.98rem;
            color: var(--text-muted);
            max-width: 720px;
            margin: 0 auto 32px;
            line-height: 1.85;
            text-align: center;
        }
        
        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 32px;
        }
        
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #06150f;
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 999px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            box-shadow: 0 6px 24px rgba(46, 230, 168, 0.3);
        }
        
        .btn-primary:hover {
            background: var(--accent);
            color: #0a0f0c;
            box-shadow: 0 8px 28px rgba(242, 193, 78, 0.4);
            transform: translateY(-2px);
        }
        
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 3px 12px rgba(46, 230, 168, 0.2);
        }
        
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 28px;
            border-radius: 999px;
            transition: border-color var(--transition), background var(--transition), color var(--transition);
        }
        
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(46, 230, 168, 0.06);
        }
        
        .hero-play-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-bottom: 20px;
            cursor: pointer;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        
        .hero-play-wrap:hover {
            color: var(--primary);
        }
        
        .hero-play-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(46, 230, 168, 0.18);
            border: 2px solid rgba(46, 230, 168, 0.5);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: background var(--transition), transform var(--transition);
            flex-shrink: 0;
        }
        
        .hero-play-btn:hover {
            background: rgba(46, 230, 168, 0.3);
            transform: scale(1.05);
        }
        
        .hero-play-btn svg {
            width: 20px;
            height: 20px;
            fill: var(--primary);
        }
        
        .hero-stats {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
        }
        
        .hero-stat {
            text-align: center;
        }
        
        .hero-stat .stat-num {
            font-family: var(--font-num);
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            color: var(--primary);
            display: block;
            line-height: 1;
        }
        
        .hero-stat .stat-label {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-top: 4px;
        }
        
        .hero-corner-badge {
            position: absolute;
            right: 32px;
            bottom: 40px;
            z-index: 3;
            background: rgba(11, 15, 20, 0.8);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-mid);
            border-radius: 12px;
            padding: 10px 18px;
            display: none;
            align-items: center;
            gap: 10px;
        }
        
        .hero-corner-badge .shield-icon {
            color: var(--accent);
        }
        
        .hero-corner-badge span {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        
        /* ========== Section 通用 ========== */
        section {
            padding: var(--section-pad) 0;
            position: relative;
        }
        
        .section-header {
            text-align: left;
            margin-bottom: 40px;
        }
        
        .section-header.center {
            text-align: center;
        }
        
        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }
        
        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.2rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--text);
        }
        
        .section-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
            margin-top: 12px;
        }
        
        .section-header.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        
        /* ========== 专题入口板块 ========== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        
        .category-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
            border-color: rgba(46, 230, 168, 0.4);
        }
        
        .category-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        
        .category-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition);
        }
        
        .category-card:hover .card-img-wrap img {
            transform: scale(1.03);
        }
        
        .category-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 20, 0.7) 100%);
            pointer-events: none;
        }
        
        .category-card .card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .category-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .category-card p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
        }
        
        .category-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 12px;
        }
        
        .category-card .card-link .arrow {
            transition: transform var(--transition);
        }
        
        .category-card:hover .card-link .arrow {
            transform: translateX(4px);
        }
        
        /* ========== 最新动态 ========== */
        .updates-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .update-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        
        .update-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow);
            border-color: rgba(46, 230, 168, 0.3);
        }
        
        .update-card .update-date {
            font-family: var(--font-num);
            font-size: 0.8rem;
            color: var(--accent);
            letter-spacing: 0.05em;
            display: block;
            margin-bottom: 8px;
        }
        
        .update-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .update-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.7;
        }
        
        /* ========== 核心方案矩阵 ========== */
        .solutions-matrix {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        
        .solution-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
        }
        
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow-hover);
            border-color: rgba(46, 230, 168, 0.35);
        }
        
        .solution-card .card-number {
            font-family: var(--font-num);
            font-size: 2.4rem;
            font-weight: 700;
            color: rgba(46, 230, 168, 0.15);
            letter-spacing: -0.02em;
            line-height: 1;
            flex-shrink: 0;
        }
        
        .solution-card .card-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .solution-card .card-content p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.7;
        }
        
        .solution-card .card-img {
            margin-top: 16px;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--radius-img);
        }
        
        .solution-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        
        .solution-card:hover .card-img img {
            transform: scale(1.02);
        }
        
        /* ========== 实时优势数据 ========== */
        .data-strip {
            background: var(--bg-deep);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
            overflow: hidden;
            border: 1px solid var(--border);
        }
        
        .data-strip::before {
            content: '';
            position: absolute;
            top: 0;
            left: -20%;
            width: 140%;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
            animation: shimmer 4s infinite linear;
        }
        
        @keyframes shimmer {
            0% { transform: translateX(-30%); }
            100% { transform: translateX(30%); }
        }
        
        .data-item {
            text-align: center;
            padding: 8px;
        }
        
        .data-item .data-num {
            font-family: var(--font-num);
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 700;
            letter-spacing: -0.03em;
            color: var(--primary);
            display: block;
            line-height: 1;
            margin-bottom: 8px;
        }
        
        .data-item .data-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        
        /* ========== 方案流程 ========== */
        .flow-track {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            position: relative;
        }
        
        .flow-track::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 8%;
            right: 8%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), rgba(46, 230, 168, 0.15));
            z-index: 0;
        }
        
        .flow-step {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 22px;
            text-align: center;
            position: relative;
            z-index: 1;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow);
            border-color: rgba(46, 230, 168, 0.35);
        }
        
        .flow-step .step-icon {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            border-radius: 50%;
            background: rgba(46, 230, 168, 0.12);
            border: 2px solid rgba(46, 230, 168, 0.35);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary);
        }
        
        .flow-step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .flow-step p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        
        /* ========== 热门场景推荐 ========== */
        .scene-scroll {
            display: flex;
            gap: 20px;
            overflow-x: auto;
            padding-bottom: 16px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }
        
        .scene-scroll::-webkit-scrollbar {
            height: 6px;
        }
        
        .scene-scroll::-webkit-scrollbar-track {
            background: var(--bg-alt);
            border-radius: 3px;
        }
        
        .scene-scroll::-webkit-scrollbar-thumb {
            background: rgba(46, 230, 168, 0.3);
            border-radius: 3px;
        }
        
        .scene-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow);
            border-color: rgba(46, 230, 168, 0.35);
        }
        
        .scene-card .scene-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        
        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition);
        }
        
        .scene-card:hover .scene-img img {
            transform: scale(1.03);
        }
        
        .scene-card .scene-body {
            padding: 16px 18px 20px;
        }
        
        .scene-card .scene-body h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        
        .scene-card .scene-body p {
            font-size: 0.82rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        
        /* ========== 资讯与报告列表 ========== */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        
        .info-item {
            display: flex;
            gap: 18px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 18px;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            align-items: center;
        }
        
        .info-item:hover {
            transform: translateX(4px);
            box-shadow: var(--card-shadow);
            border-color: rgba(46, 230, 168, 0.3);
        }
        
        .info-item .info-thumb {
            flex-shrink: 0;
            width: 120px;
            aspect-ratio: 4/3;
            overflow: hidden;
            border-radius: var(--radius-img);
        }
        
        .info-item .info-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .info-item .info-content {
            flex: 1;
        }
        
        .info-item .info-content .info-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.03em;
            margin-bottom: 6px;
        }
        
        .info-item .info-content h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        
        .info-item .info-content p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.6;
        }
        
        .info-item .info-date {
            flex-shrink: 0;
            font-family: var(--font-num);
            font-size: 0.8rem;
            color: var(--text-weak);
            letter-spacing: 0.03em;
        }
        
        /* ========== 案例墙 ========== */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        
        .case-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        
        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-shadow-hover);
            border-color: rgba(46, 230, 168, 0.4);
        }
        
        .case-card .case-img {
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        
        .case-card .case-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform var(--transition);
        }
        
        .case-card:hover .case-img img {
            transform: scale(1.03);
        }
        
        .case-card .case-body {
            padding: 18px 20px 22px;
        }
        
        .case-card .case-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .case-card .case-body p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.7;
        }
        
        .case-card .case-meta {
            display: flex;
            gap: 16px;
            margin-top: 12px;
            font-size: 0.8rem;
            color: var(--text-weak);
        }
        
        .case-card .case-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        
        /* ========== 多端同步 ========== */
        .multi-device {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        
        .device-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            text-align: center;
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }
        
        .device-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-shadow);
            border-color: rgba(46, 230, 168, 0.3);
        }
        
        .device-card .device-icon {
            font-size: 2.2rem;
            margin-bottom: 12px;
        }
        
        .device-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        
        .device-card p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.7;
        }
        
        /* ========== 专业机构 ========== */
        .org-list {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 16px;
        }
        
        .org-item {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 20px 16px;
            text-align: center;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: border-color var(--transition), background var(--transition), color var(--transition);
        }
        
        .org-item:hover {
            border-color: rgba(46, 230, 168, 0.4);
            background: rgba(46, 230, 168, 0.05);
            color: var(--primary);
        }
        
        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--border);
        }
        
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 4px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            transition: color var(--transition);
            background: none;
            width: 100%;
            text-align: left;
        }
        
        .faq-question:hover {
            color: var(--primary);
        }
        
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            transition: transform var(--transition);
        }
        
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        }
        
        .faq-item.open .faq-answer {
            max-height: 200px;
        }
        
        .faq-answer-inner {
            padding: 0 4px 20px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.8;
            background: var(--bg-emerald);
            border-radius: 0 0 8px 8px;
            padding: 16px;
            margin-bottom: 8px;
        }
        
        /* ========== 服务保障与联系 ========== */
        .guarantee-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }
        
        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px 18px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-muted);
            transition: border-color var(--transition);
        }
        
        .guarantee-item:hover {
            border-color: rgba(46, 230, 168, 0.35);
        }
        
        .guarantee-item .check-mark {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(46, 230, 168, 0.15);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.75rem;
        }
        
        .contact-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 40px;
        }
        
        .contact-info h3 {
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 12px;
            color: var(--text);
        }
        
        .contact-info p {
            font-size: 0.92rem;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        
        .contact-info .contact-detail {
            display: flex;
            flex-direction: column;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        
        .contact-info .contact-detail span {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .form-group {
            margin-bottom: 18px;
        }
        
        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        
        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
            margin-top: auto;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        
        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        
        .footer-brand p {
            font-size: 0.88rem;
            color: var(--text-weak);
            line-height: 1.7;
        }
        
        .footer-col h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--text-weak);
            transition: color var(--transition);
        }
        
        .footer-col ul li a:hover {
            color: var(--primary);
        }
        
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-weak);
        }
        
        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            :root {
                --section-pad: 60px;
            }
            
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .updates-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 36px 28px;
            }
            
            .flow-track {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .flow-track::before {
                display: none;
            }
            
            .case-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .multi-device {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
            
            .org-list {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .guarantee-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .contact-section {
                grid-template-columns: 1fr;
                gap: 24px;
                padding: 28px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            
            .hero-corner-badge {
                display: none;
            }
        }
        
        @media (max-width: 768px) {
            .site-header {
                top: auto;
                bottom: 16px;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 32px);
                max-width: 500px;
            }
            
            .dock-nav {
                justify-content: space-between;
                gap: 8px;
                padding: 8px 12px;
                border-radius: 999px;
            }
            
            .dock-logo {
                font-size: 0.95rem;
            }
            
            .dock-logo .logo-mark {
                width: 24px;
                height: 24px;
                font-size: 0.7rem;
            }
            
            .dock-menu li a {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            
            .dock-cta {
                padding: 8px 14px;
                font-size: 0.78rem;
                height: 34px;
            }
            
            .hero {
                min-height: 75vh;
                padding: 120px 0 80px;
            }
            
            .hero h1 {
                font-size: clamp(2rem, 7vw, 2.8rem);
            }
            
            .hero-subtitle {
                font-size: 1rem;
            }
            
            .hero-desc {
                font-size: 0.9rem;
            }
            
            .hero-stats {
                gap: 20px;
            }
            
            .hero-stat .stat-num {
                font-size: 1.5rem;
            }
            
            .solutions-matrix {
                grid-template-columns: 1fr;
            }
            
            .data-strip {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 28px 20px;
            }
            
            .flow-track {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .case-grid {
                grid-template-columns: 1fr;
            }
            
            .multi-device {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .org-list {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .guarantee-strip {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            
            .info-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            
            .info-item .info-thumb {
                width: 100%;
                aspect-ratio: 16/9;
            }
            
            .info-item .info-date {
                align-self: flex-end;
            }
            
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        
        @media (max-width: 520px) {
            :root {
                --section-pad: 48px;
            }
            
            .container {
                padding: 0 16px;
            }
            
            .category-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .updates-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            
            .data-strip {
                grid-template-columns: 1fr;
                gap: 20px;
                text-align: center;
            }
            
            .org-list {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            
            .org-item {
                padding: 14px 10px;
                font-size: 0.75rem;
            }
            
            .hero-actions {
                flex-direction: column;
                gap: 12px;
                width: 100%;
            }
            
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            
            .section-header {
                margin-bottom: 28px;
            }
            
            .section-title {
                font-size: 1.4rem;
            }
            
            .faq-question {
                font-size: 0.92rem;
                padding: 16px 2px;
            }
            
            .contact-section {
                padding: 20px;
            }
            
            .dock-nav {
                gap: 4px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0B0F14;
            --bg-alt: #11161C;
            --bg-deep: #06090C;
            --bg-emerald: #0E1512;
            --primary: #2EE6A8;
            --primary-bright: #39FF88;
            --accent: #F2C14E;
            --danger: #FF6B5E;
            --text: #F2F6F5;
            --text-muted: #B7C2C2;
            --text-weak: #7A8A8A;
            --border: rgba(255, 255, 255, 0.08);
            --border-mid: rgba(255, 255, 255, 0.15);
            --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            --card-shadow-hover: 0 12px 32px rgba(46, 230, 168, 0.18);
            --radius-card: 18px;
            --radius-btn: 999px;
            --radius-img: 12px;
            --radius-badge: 6px;
            --section-pad: 80px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --font-num: 'DIN Condensed', 'Oswald', 'Barlow Condensed', 'Arial Narrow', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--primary);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-pad) 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-tight {
            padding: 40px 0;
        }

        /* ===== 浮动 Dock 导航 ===== */
        .dock-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 1200px;
            z-index: 1000;
        }

        .dock-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(11, 15, 20, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 8px 16px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
            transition: background var(--transition), box-shadow var(--transition);
        }

        .dock-header.scrolled .dock-nav {
            background: rgba(11, 15, 20, 0.92);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 17px;
            letter-spacing: -0.02em;
            color: var(--text);
            white-space: nowrap;
        }

        .dock-logo:hover {
            color: var(--primary);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--primary);
            color: #0B0F14;
            border-radius: 8px;
            font-weight: 800;
            font-size: 16px;
            flex-shrink: 0;
        }

        .dock-menu {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .dock-menu li a {
            display: block;
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .dock-menu li a:hover {
            color: var(--primary);
            background: rgba(46, 230, 168, 0.08);
        }

        .dock-menu li a.active {
            color: #0B0F14;
            background: var(--primary);
            font-weight: 600;
        }

        .dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 20px;
            border-radius: 999px;
            background: var(--primary);
            color: #0B0F14;
            font-weight: 700;
            font-size: 14px;
            white-space: nowrap;
            transition: all var(--transition);
        }

        .dock-cta:hover {
            background: var(--accent);
            color: #0B0F14;
            box-shadow: 0 0 20px rgba(46, 230, 168, 0.35);
        }

        .dock-cta:focus-visible,
        .dock-menu li a:focus-visible,
        .dock-logo:focus-visible,
        .filter-chip:focus-visible,
        .article-link:focus-visible,
        .topic-card:focus-visible,
        .subscribe-btn:focus-visible,
        .faq-question:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* 移动端汉堡 */
        .dock-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid var(--border-mid);
        }

        .dock-burger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* ===== 分类页首屏（窄色条） ===== */
        .cate-hero {
            padding: 120px 0 40px;
            background: linear-gradient(180deg, rgba(14, 21, 18, 0.9) 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--border);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .sep {
            color: var(--text-weak);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .cate-hero h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: var(--text);
            margin: 0 0 16px;
            font-family: var(--font-sans);
        }

        .cate-hero .subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 筛选/排序工具条 ===== */
        .filter-section {
            padding: 24px 0;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border);
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-muted);
            margin-right: 8px;
            white-space: nowrap;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid var(--border-mid);
            color: var(--text-muted);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(46, 230, 168, 0.06);
        }

        .filter-chip.active {
            background: var(--primary);
            color: #0B0F14;
            border-color: var(--primary);
            font-weight: 700;
        }

        .filter-count {
            font-size: 13px;
            color: var(--text-weak);
            margin-left: auto;
            white-space: nowrap;
        }

        /* ===== 文章卡片网格 ===== */
        .article-grid-section {
            padding: 48px 0;
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: var(--card-shadow-hover);
        }

        .article-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .article-card:hover img {
            transform: scale(1.03);
        }

        .article-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-tag {
            display: inline-block;
            width: fit-content;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-badge);
            background: rgba(46, 230, 168, 0.12);
            color: var(--primary);
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .article-tag.gold {
            background: rgba(242, 193, 78, 0.12);
            color: var(--accent);
        }

        .article-tag.orange {
            background: rgba(255, 107, 94, 0.12);
            color: var(--danger);
        }

        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin: 0 0 10px;
            color: var(--text);
        }

        .article-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0 0 16px;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-weak);
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }

        .article-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: all var(--transition);
        }

        .article-link:hover {
            color: var(--primary-bright);
            gap: 10px;
        }

        .article-link svg {
            width: 16px;
            height: 16px;
            flex-shrink: 0;
        }

        /* ===== 查看更多按钮 ===== */
        .load-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 36px;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: transparent;
            border: 1px solid var(--border-mid);
            color: var(--text);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
        }

        .load-more-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(46, 230, 168, 0.06);
        }

        /* ===== 专题推荐横向滚动 ===== */
        .topic-scroll-section {
            padding: 56px 0;
            background: var(--bg-alt);
        }

        .topic-scroll-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .topic-scroll-header h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0;
            color: var(--text);
        }

        .topic-scroll-header .badge {
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-badge);
            background: rgba(242, 193, 78, 0.12);
            color: var(--accent);
        }

        .topic-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
            scrollbar-color: var(--border-mid) transparent;
        }

        .topic-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .topic-scroll::-webkit-scrollbar-track {
            background: transparent;
        }

        .topic-scroll::-webkit-scrollbar-thumb {
            background: var(--border-mid);
            border-radius: 999px;
        }

        .topic-card {
            flex: 0 0 280px;
            scroll-snap-align: start;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--card-shadow);
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--card-shadow-hover);
        }

        .topic-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }

        .topic-card-body {
            padding: 16px;
        }

        .topic-card h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            margin: 0 0 8px;
            color: var(--text);
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* ===== 数据公告 ===== */
        .data-banner-section {
            padding: 48px 0;
        }

        .data-banner {
            background: linear-gradient(135deg, #0E1512 0%, #11161C 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--card-shadow);
            position: relative;
            overflow: hidden;
        }

        .data-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--primary);
            border-radius: 4px 0 0 4px;
        }

        .data-banner-info h2 {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 8px;
            color: var(--text);
        }

        .data-banner-info p {
            font-size: 15px;
            color: var(--text-muted);
            margin: 0;
        }

        .data-banner-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
        }

        .data-stat {
            text-align: center;
        }

        .data-stat .num {
            font-family: var(--font-num);
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            line-height: 1;
            display: block;
        }

        .data-stat .label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .data-stat.gold .num {
            color: var(--accent);
        }

        .data-stat.orange .num {
            color: var(--danger);
        }

        .data-update {
            font-size: 13px;
            color: var(--text-weak);
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .mini-faq-section {
            padding: 48px 0;
            background: var(--bg-alt);
        }

        .mini-faq-section h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 24px;
            color: var(--text);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 20px 0;
            text-align: left;
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            transition: color var(--transition);
            background: none;
            border: none;
            cursor: pointer;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(46, 230, 168, 0.1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            transition: all var(--transition);
        }

        .faq-item.open .faq-icon {
            background: var(--primary);
            color: #0B0F14;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 0 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 订阅/CTA ===== */
        .subscribe-section {
            padding: 56px 0;
        }

        .subscribe-box {
            background: linear-gradient(135deg, #0E1512 0%, #1a2a24 100%);
            border: 1px solid rgba(46, 230, 168, 0.2);
            border-radius: var(--radius-card);
            padding: 40px;
            box-shadow: var(--card-shadow);
        }

        .subscribe-box h2 {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 0 0 12px;
            color: var(--text);
        }

        .subscribe-box p {
            font-size: 16px;
            color: var(--text-muted);
            margin: 0 0 24px;
            max-width: 560px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            height: 48px;
            padding: 0 18px;
            border-radius: 999px;
            background: var(--bg);
            border: 1px solid var(--border-mid);
            color: var(--text);
            font-size: 15px;
            transition: all var(--transition);
            outline: none;
        }

        .subscribe-form input::placeholder {
            color: var(--text-weak);
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 230, 168, 0.15);
        }

        .subscribe-btn {
            height: 48px;
            padding: 0 28px;
            border-radius: 999px;
            background: var(--primary);
            color: #0B0F14;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .subscribe-btn:hover {
            background: var(--primary-bright);
            box-shadow: 0 0 20px rgba(46, 230, 168, 0.3);
        }

        .subscribe-btn:active {
            transform: translateY(1px);
        }

        .subscribe-note {
            font-size: 13px;
            color: var(--text-weak);
            margin-top: 12px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .article-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .cate-hero h1 {
                font-size: 40px;
            }

            .data-banner {
                padding: 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .data-banner-stats {
                gap: 20px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 48px;
            }

            .section {
                padding: 48px 0;
            }

            .dock-nav {
                padding: 6px 12px;
                gap: 8px;
            }

            .dock-logo span:not(.logo-mark) {
                font-size: 15px;
            }

            .dock-menu {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(11, 15, 20, 0.95);
                backdrop-filter: blur(16px);
                border: 1px solid var(--border-mid);
                border-radius: 16px;
                padding: 12px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
            }

            .dock-menu.open {
                display: flex;
            }

            .dock-menu li {
                width: 100%;
            }

            .dock-menu li a {
                display: block;
                padding: 12px 16px;
                border-radius: 10px;
                font-size: 15px;
                text-align: center;
            }

            .dock-burger {
                display: flex;
            }

            .dock-cta {
                height: 36px;
                padding: 0 14px;
                font-size: 13px;
            }

            .cate-hero {
                padding: 100px 0 32px;
            }

            .cate-hero h1 {
                font-size: 32px;
            }

            .cate-hero .subtitle {
                font-size: 16px;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .article-card h3 {
                font-size: 17px;
            }

            .topic-scroll-header h2 {
                font-size: 24px;
            }

            .topic-card {
                flex: 0 0 240px;
            }

            .data-banner {
                padding: 20px;
            }

            .data-banner-info h2 {
                font-size: 20px;
            }

            .data-stat .num {
                font-size: 32px;
            }

            .mini-faq-section h2 {
                font-size: 24px;
            }

            .faq-question {
                font-size: 15px;
                padding: 16px 0;
            }

            .subscribe-box {
                padding: 24px;
            }

            .subscribe-box h2 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .cate-hero h1 {
                font-size: 26px;
            }

            .filter-bar {
                gap: 6px;
            }

            .filter-chip {
                height: 34px;
                padding: 0 14px;
                font-size: 13px;
            }

            .filter-label {
                font-size: 13px;
            }

            .article-card-body {
                padding: 16px;
            }

            .topic-scroll-section {
                padding: 40px 0;
            }

            .data-banner-stats {
                flex-direction: column;
                gap: 12px;
                align-items: flex-start;
            }

            .data-stat {
                text-align: left;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form input {
                min-width: 100%;
            }

            .subscribe-btn {
                width: 100%;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
        }