/* roulang page: index */
:root{
  --snow-glow:#5fc9ff;
  --frost-ink:#c9e8ff;
  --bg-deep:#070d17;
  --bg-soft:#0d1626;
  --text-main:#e9f1fa;
  --text-dim:#8fa3bd;
  --line-soft:rgba(150,190,230,.16);
  --radius-base:16px;
  --shadow-soft:0 18px 40px -22px rgba(0,0,0,.92);
  --space-base:clamp(18px,3vw,32px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg-deep);
  color:var(--text-main);
  line-height:1.72;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3{line-height:1.32;font-weight:700}
button{font:inherit}
:focus-visible{outline:2px solid var(--snow-glow);outline-offset:3px;border-radius:6px}

.ccuht-wrap{width:min(1180px,92vw);margin:0 auto}

/* 顶栏 */
.ccuht-top{
  position:sticky;top:0;z-index:60;
  background:rgba(7,13,23,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.ccuht-top-in{display:flex;align-items:center;gap:26px;height:68px}
.ccuht-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.4px;flex:0 0 auto}
.ccuht-logo i{
  width:36px;height:36px;border-radius:11px;font-style:normal;
  display:grid;place-items:center;font-size:17px;font-weight:800;color:#04101f;
  background:linear-gradient(140deg,#7ad8ff,#2f6bff);
  box-shadow:0 6px 18px -8px rgba(95,201,255,.9);
}
.ccuht-nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.ccuht-nav::-webkit-scrollbar{display:none}
.ccuht-nav a{
  display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:10px;font-size:15px;color:var(--text-dim);
  white-space:nowrap;transition:color .22s,background .22s;
}
.ccuht-nav a:hover,.ccuht-nav a:focus-visible{color:#fff;background:rgba(95,201,255,.13)}

/* 首屏 */
.ccuht-hero{position:relative;padding:62px 0 58px;overflow:hidden;background:var(--bg-deep) url(/assets/images/backpic/back-1.webp) center/cover no-repeat}
.ccuht-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,13,23,.84),rgba(7,13,23,.93) 58%,var(--bg-deep))}
.ccuht-hero-in{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.ccuht-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.3px;
  color:var(--frost-ink);background:rgba(95,201,255,.12);
  border:1px solid rgba(95,201,255,.28);
}
.ccuht-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--snow-glow);box-shadow:0 0 10px var(--snow-glow)}
.ccuht-hero h1{margin:20px 0 16px;font-size:clamp(30px,4.4vw,48px);letter-spacing:.5px}
.ccuht-hero h1 span{color:var(--snow-glow);text-shadow:0 0 28px rgba(95,201,255,.45)}
.ccuht-lead{font-size:16px;color:var(--frost-ink);max-width:34em}
.ccuht-hero p.ccuht-desc{margin-top:16px;color:var(--text-dim);max-width:36em;font-size:15px}
.ccuht-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.ccuht-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;
  transition:transform .22s,box-shadow .22s,background .22s;border:1px solid transparent;
}
.ccuht-btn-a{background:linear-gradient(135deg,#7ad8ff,#2f6bff);color:#04101f;box-shadow:0 14px 30px -16px rgba(95,201,255,.95)}
.ccuht-btn-a:hover{transform:translateY(-2px);box-shadow:0 20px 34px -16px rgba(95,201,255,1)}
.ccuht-btn-b{background:rgba(255,255,255,.05);color:var(--text-main);border-color:var(--line-soft)}
.ccuht-btn-b:hover{background:rgba(95,201,255,.14);border-color:rgba(95,201,255,.4);transform:translateY(-2px)}

.ccuht-pick{
  position:relative;border-radius:20px;overflow:hidden;
  border:1px solid rgba(95,201,255,.22);
  box-shadow:var(--shadow-soft);
  background:var(--bg-soft);
}
.ccuht-pick img{width:100%;aspect-ratio:16/11;object-fit:cover}
.ccuht-pick figcaption{padding:18px 20px 22px}
.ccuht-tag{
  display:inline-block;font-size:12px;letter-spacing:.6px;color:var(--snow-glow);
  padding:3px 10px;border-radius:999px;background:rgba(95,201,255,.12);
  border:1px solid rgba(95,201,255,.3);
}
.ccuht-pick strong{display:block;margin:12px 0 8px;font-size:18px}
.ccuht-pick p{color:var(--text-dim);font-size:14px}

/* 通用板块 */
.ccuht-sec{padding:64px 0;scroll-margin-top:84px}
.ccuht-sec:nth-of-type(even){background:var(--bg-soft)}
.ccuht-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.ccuht-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:.4px}
.ccuht-head h2::after{content:"";display:block;width:44px;height:3px;margin-top:12px;border-radius:3px;background:linear-gradient(90deg,var(--snow-glow),rgba(95,201,255,0))}
.ccuht-head p{color:var(--text-dim);font-size:14px;max-width:46em}
.ccuht-sublink{font-size:14px;color:var(--snow-glow);min-height:44px;display:inline-flex;align-items:center}

/* 网格与卡片 */
.ccuht-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-base)}
.ccuht-card{
  background:linear-gradient(180deg,#101c2e,#0a1220);
  border:1px solid var(--line-soft);border-radius:var(--radius-base);
  overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;
}
.ccuht-card:hover{transform:translateY(-4px);border-color:rgba(95,201,255,.42);box-shadow:var(--shadow-soft)}
.ccuht-thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#0a1320}
.ccuht-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.ccuht-card:hover .ccuht-thumb img{transform:scale(1.05)}
.ccuht-badge{
  position:absolute;left:10px;top:10px;padding:2px 9px;border-radius:7px;
  font-size:12px;font-weight:600;color:#04101f;background:rgba(201,232,255,.92);
}
.ccuht-score{
  position:absolute;right:10px;bottom:10px;padding:2px 9px;border-radius:7px;
  font-size:13px;font-weight:700;color:#ffd479;background:rgba(6,12,22,.82);
  border:1px solid rgba(255,212,121,.35);
}
.ccuht-card-b{padding:13px 14px 16px}
.ccuht-card-b h3{font-size:15px;margin-bottom:6px}
.ccuht-card-b p{font-size:13px;color:var(--text-dim);line-height:1.65}
.ccuht-meta{display:flex;gap:8px;font-size:12px;color:var(--text-dim);margin-top:8px;flex-wrap:wrap}
.ccuht-meta span{padding:1px 8px;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid var(--line-soft)}

/* 类型专区 */
.ccuht-genre{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-base)}
.ccuht-genre>li{
  padding:24px 22px;border-radius:var(--radius-base);
  background:linear-gradient(180deg,rgba(16,28,46,.9),rgba(10,18,32,.9));
  border:1px solid var(--line-soft);
}
.ccuht-genre h3{font-size:17px;color:var(--snow-glow);margin-bottom:10px}
.ccuht-genre p{font-size:14px;color:var(--text-dim);margin-bottom:14px}
.ccuht-genre b{display:block;font-size:15px;font-weight:600;line-height:1.9;color:var(--text-main)}

/* 专题 */
.ccuht-topic{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-base)}
.ccuht-topic li{
  position:relative;border-radius:var(--radius-base);overflow:hidden;
  border:1px solid var(--line-soft);background:var(--bg-deep);
  transition:transform .25s,border-color .25s;
}
.ccuht-topic li:hover{transform:translateY(-4px);border-color:rgba(95,201,255,.4)}
.ccuht-topic img{width:100%;aspect-ratio:16/8;object-fit:cover;opacity:.78}
.ccuht-topic-b{padding:20px 22px 24px}
.ccuht-topic-b h3{font-size:18px;margin-bottom:10px}
.ccuht-topic-b p{font-size:14px;color:var(--text-dim)}

/* 排行榜 */
.ccuht-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 30px}
.ccuht-rank li{
  display:grid;grid-template-columns:38px 1fr auto auto;align-items:center;gap:12px;
  padding:13px 16px;border-radius:12px;background:rgba(255,255,255,.035);
  border:1px solid transparent;transition:background .22s,border-color .22s;
}
.ccuht-rank li:hover{background:rgba(95,201,255,.09);border-color:rgba(95,201,255,.28)}
.ccuht-no{font-size:14px;font-weight:800;color:rgba(143,163,189,.75);font-variant-numeric:tabular-nums}
.ccuht-rank li:nth-child(-n+3) .ccuht-no{color:var(--snow-glow)}
.ccuht-rank strong{font-size:15px;font-weight:600}
.ccuht-rank em{font-size:12px;color:var(--text-dim);font-style:normal}
.ccuht-pt{font-size:14px;font-weight:700;color:#ffd479}

/* 年代 */
.ccuht-year{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-base)}
.ccuht-year li{padding:22px 22px 24px;border-radius:var(--radius-base);border:1px solid var(--line-soft);background:rgba(255,255,255,.03)}
.ccuht-year h3{font-size:16px;margin-bottom:12px;color:var(--frost-ink)}
.ccuht-year p{font-size:14px;color:var(--text-dim);line-height:1.9}

/* 口碑 */
.ccuht-voice{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-base)}
.ccuht-voice li{
  padding:26px 24px;border-radius:var(--radius-base);
  background:linear-gradient(160deg,rgba(95,201,255,.09),rgba(13,22,38,.9));
  border:1px solid var(--line-soft);
}
.ccuht-voice p{font-size:15px;color:var(--frost-ink);line-height:1.8}
.ccuht-voice cite{display:block;margin-top:14px;font-style:normal;font-size:13px;color:var(--text-dim)}

/* 资讯 */
.ccuht-news{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.ccuht-news li{
  display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;
  padding:12px;border-radius:14px;border:1px solid var(--line-soft);
  background:rgba(255,255,255,.03);transition:border-color .22s,background .22s;
}
.ccuht-news li:hover{border-color:rgba(95,201,255,.38);background:rgba(95,201,255,.07)}
.ccuht-news img{width:112px;height:76px;object-fit:cover;border-radius:10px}
.ccuht-news h3{font-size:15px;margin-bottom:6px}
.ccuht-news span{font-size:12px;color:var(--text-dim)}

/* 问答 */
.ccuht-faq{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.ccuht-faq li{padding:22px 24px;border-radius:14px;border:1px solid var(--line-soft);background:rgba(255,255,255,.03)}
.ccuht-faq h3{font-size:16px;margin-bottom:10px;color:var(--frost-ink)}
.ccuht-faq p{font-size:14px;color:var(--text-dim)}

/* 收口 */
.ccuht-close{padding:56px 0 72px}
.ccuht-close-in{
  padding:44px 40px;border-radius:22px;text-align:center;
  background:radial-gradient(120% 160% at 50% 0%,rgba(95,201,255,.2),rgba(13,22,38,.95) 62%);
  border:1px solid rgba(95,201,255,.25);
}
.ccuht-close h2{font-size:clamp(21px,2.6vw,28px);margin-bottom:14px}
.ccuht-close p{color:var(--text-dim);max-width:44em;margin:0 auto 26px;font-size:15px}

/* 页脚 */
.ccuht-foot{border-top:1px solid var(--line-soft);background:#050a12;padding:52px 0 0}
.ccuht-foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.ccuht-foot h4{font-size:14px;letter-spacing:.5px;color:var(--frost-ink);margin-bottom:14px;font-weight:600}
.ccuht-foot p{font-size:14px;color:var(--text-dim);max-width:26em}
.ccuht-foot li{font-size:14px;color:var(--text-dim);line-height:2.1}
.ccuht-foot li a{transition:color .2s}
.ccuht-foot li a:hover{color:var(--snow-glow)}
.ccuht-copy{border-top:1px solid var(--line-soft);padding:20px 0;font-size:13px;color:rgba(143,163,189,.8);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media (max-width:1024px){
  .ccuht-hero-in{grid-template-columns:1fr;gap:36px}
  .ccuht-pick img{aspect-ratio:16/9}
  .ccuht-grid{grid-template-columns:repeat(3,1fr)}
  .ccuht-genre{grid-template-columns:repeat(2,1fr)}
  .ccuht-year,.ccuht-voice{grid-template-columns:repeat(2,1fr)}
  .ccuht-rank{grid-template-columns:1fr}
  .ccuht-foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .ccuht-top-in{height:60px;gap:14px}
  .ccuht-logo{font-size:16px}
  .ccuht-logo i{width:32px;height:32px;border-radius:9px;font-size:15px}
  .ccuht-nav a{font-size:14px;padding:0 11px}
  .ccuht-hero{padding:44px 0 40px}
  .ccuht-sec{padding:48px 0}
  .ccuht-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .ccuht-topic,.ccuht-news,.ccuht-faq{grid-template-columns:1fr}
  .ccuht-close-in{padding:34px 22px}
}
@media (max-width:520px){
  .ccuht-genre,.ccuht-year,.ccuht-voice{grid-template-columns:1fr}
  .ccuht-news li{grid-template-columns:88px 1fr;gap:12px}
  .ccuht-news img{width:88px;height:62px}
  .ccuht-acts .ccuht-btn{flex:1 1 100%}
  .ccuht-foot-grid{grid-template-columns:1fr}
  .ccuht-hero h1{font-size:27px}
}