/* ============================================
   糖霜视频（第 14 套 · 萌娃主题）样式表
   主色 #06b6d4 · 深色背景
   ============================================ */
:root{
  --bg:#070d1a;
  --bg-soft:#0b1424;
  --card:#0f1a2e;
  --card-2:#13203a;
  --line:rgba(148,163,184,.14);
  --text:#eaf1fb;
  --muted:#93a6c4;
  --brand:#06b6d4;
  --brand-2:#22d3ee;
  --brand-deep:#0891b2;
  --star:#fbbf24;
  --grad:linear-gradient(135deg,#06b6d4,#22d3ee);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- 顶部导航 ---------- */
.navbar{position:sticky;top:0;z-index:60;background:rgba(7,13,26,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:26px;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:1px}
.logo-emoji{width:38px;height:38px;display:flex;align-items:center;justify-content:center;background:rgba(6,182,212,.14);border:1px solid rgba(34,211,238,.35);border-radius:12px;font-size:20px;flex:0 0 auto}
.nav-links{display:flex;gap:26px;margin:0 auto}
.nav-links a{font-size:14.5px;color:var(--muted);transition:color .2s;padding:6px 0;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--brand-2)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--grad)}
.nav-actions{display:flex;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 20px;border-radius:999px;font-size:14px;border:1px solid transparent;transition:all .25s}
.btn-primary{background:var(--grad);color:#042832;font-weight:700;box-shadow:0 8px 22px rgba(6,182,212,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(6,182,212,.5)}
.btn-ghost{background:transparent;border-color:rgba(148,163,184,.35);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand-2);color:var(--brand-2)}
@media(max-width:880px){
  .nav-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px}
  .nav-actions{margin-left:auto}
  .nav-links{order:3;width:100%;overflow-x:auto;gap:22px;padding-bottom:4px}
  .nav-links li{flex:0 0 auto}
  .nav-links a{white-space:nowrap}
}

/* ---------- Hero 区 ---------- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1100px 520px at 18% -10%,rgba(6,182,212,.30),transparent 60%),radial-gradient(900px 460px at 85% 8%,rgba(34,211,238,.22),transparent 55%),linear-gradient(180deg,#0a1428,#070d1a);text-align:center;padding:92px 0 74px}
.hero-particles{position:absolute;inset:0;pointer-events:none}
.hero-particles span{position:absolute;border-radius:50%;background:rgba(255,255,255,.55);box-shadow:0 0 10px rgba(34,211,238,.85);opacity:0;animation:floatUp linear infinite}
@keyframes floatUp{
  0%{transform:translateY(0) scale(1);opacity:0}
  12%{opacity:.85}
  85%{opacity:.35}
  100%{transform:translateY(-560px) scale(.35);opacity:0}
}
.hero-inner{position:relative;z-index:2}
.hero .tag{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;border-radius:999px;background:rgba(6,182,212,.12);border:1px solid rgba(34,211,238,.4);color:var(--brand-2);font-size:13px;margin-bottom:26px}
.hero h1{font-size:46px;line-height:1.3;font-weight:800;letter-spacing:1px}
.hero h1 .hl{background:linear-gradient(90deg,#22d3ee,#7de9fa);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin:18px auto 0;max-width:640px;color:var(--muted);font-size:16px}
.search-bar{max-width:560px;margin:34px auto 0;display:flex;align-items:center;background:rgba(255,255,255,.07);border:1px solid rgba(34,211,238,.4);border-radius:999px;padding:7px;box-shadow:0 14px 44px rgba(6,182,212,.18)}
.search-bar input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-size:15px;padding:0 18px;min-width:0}
.search-bar input::placeholder{color:var(--muted)}
.search-btn{width:46px;height:46px;flex:0 0 46px;border:none;border-radius:50%;background:var(--grad);font-size:17px;transition:transform .2s}
.search-btn:hover{transform:scale(1.08)}
.hero-stats{display:flex;justify-content:center;gap:64px;margin-top:44px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:30px;font-weight:800;color:var(--brand-2)}
.hero-stat span{color:var(--muted);font-size:13px;margin-top:4px;display:block}
@media(max-width:640px){
  .hero{padding:64px 0 52px}
  .hero h1{font-size:30px}
  .hero-stats{gap:34px}
  .hero-stat b{font-size:24px}
}

/* ---------- 通用区块 ---------- */
.section{padding:76px 0}
.pt-0{padding-top:0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;flex-wrap:wrap}
.section-title{font-size:27px;font-weight:800;display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:8px;height:28px;border-radius:5px;background:var(--grad);flex:0 0 8px}
.section-desc{color:var(--muted);font-size:14px;margin-top:10px}
.section-more{color:var(--brand-2);font-size:14px;flex:0 0 auto;padding-bottom:2px}
.section-more:hover{text-decoration:underline}

/* ---------- 视频卡片 ---------- */
.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:1024px){.video-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
.video-card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.video-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.5);box-shadow:0 18px 44px rgba(0,0,0,.5),0 0 0 1px rgba(34,211,238,.18)}
.cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--card-2)}
.cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .cover img{transform:scale(1.06)}
.play-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;background:rgba(6,182,212,.92);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;padding-left:3px;opacity:0;transition:opacity .25s,transform .25s;box-shadow:0 8px 24px rgba(0,0,0,.4)}
.video-card:hover .play-btn{opacity:1;transform:translate(-50%,-50%) scale(1.05)}
.duration{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.72);color:#fff;font-size:12px;padding:3px 8px;border-radius:7px;letter-spacing:.5px}
.video-info{padding:14px 14px 16px}
.video-title{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:44px}
.video-desc{margin-top:6px;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.video-meta{display:flex;align-items:center;gap:8px;margin-top:12px}
.mini-avatar{width:24px;height:24px;border-radius:50%;object-fit:cover;border:1px solid rgba(34,211,238,.55);flex:0 0 auto}
.creator-name{font-size:12.5px;color:var(--muted)}
.meta-right{margin-left:auto;display:flex;gap:10px;font-size:12px;color:var(--muted);white-space:nowrap}
.empty-tip{grid-column:1/-1;text-align:center;color:var(--muted);padding:50px 0;font-size:14px}

/* ---------- 明星创作者 ---------- */
.creator-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
@media(max-width:1024px){.creator-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.creator-grid{grid-template-columns:repeat(2,1fr)}}
.creator-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px 14px 24px;text-align:center;transition:transform .25s,border-color .25s,box-shadow .25s}
.creator-card:hover{transform:translateY(-6px);border-color:rgba(34,211,238,.45);box-shadow:0 16px 40px rgba(0,0,0,.45)}
.avatar-wrap{position:relative;width:86px;margin:0 auto}
.avatar-wrap img{width:86px;height:86px;border-radius:50%;object-fit:cover;border:3px solid rgba(34,211,238,.65);box-shadow:0 0 26px rgba(6,182,212,.3)}
.star-badge{position:absolute;right:-4px;bottom:2px;width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#fbbf24,#f59e0b);display:flex;align-items:center;justify-content:center;font-size:13px;box-shadow:0 4px 10px rgba(0,0,0,.4)}
.creator-name-lg{margin-top:14px;font-size:15px;font-weight:700}
.creator-fans{margin-top:4px;color:var(--brand-2);font-size:13px}
.creator-bio{margin-top:8px;font-size:12px;color:var(--muted);line-height:1.6;min-height:38px}

/* ---------- 平台特色 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1024px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.feature-grid{grid-template-columns:1fr}}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px 24px;transition:transform .25s,border-color .25s}
.feature-card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.4)}
.feature-icon{width:54px;height:54px;border-radius:15px;background:rgba(6,182,212,.14);border:1px solid rgba(34,211,238,.3);display:flex;align-items:center;justify-content:center;font-size:25px}
.feature-card h3{margin-top:18px;font-size:16.5px}
.feature-card p{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 数据统计区 ---------- */
.stats-band{background:linear-gradient(135deg,rgba(6,182,212,.16),rgba(34,211,238,.06)),var(--card);border:1px solid rgba(34,211,238,.25);border-radius:24px;padding:46px 30px;display:grid;grid-template-columns:repeat(4,1fr);text-align:center;gap:24px}
@media(max-width:820px){.stats-band{grid-template-columns:repeat(2,1fr);gap:30px}}
.stat-num{font-size:38px;font-weight:800;color:var(--brand-2);line-height:1.2}
.stat-label{margin-top:10px;color:var(--muted);font-size:13.5px}

/* ---------- 用户评价 ---------- */
.t-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.t-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px;transition:transform .25s,border-color .25s}
.t-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.35)}
.t-head{display:flex;align-items:center;gap:12px}
.t-head img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid rgba(34,211,238,.5)}
.t-name{font-size:14.5px;font-weight:700}
.stars{margin-top:3px;font-size:13px;letter-spacing:2px;color:var(--star)}
.stars .off{color:rgba(148,163,184,.3)}
.t-text{margin-top:14px;font-size:13.5px;color:#c6d4e8;line-height:1.85}

/* ---------- 成功故事 ---------- */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:900px){.story-grid{grid-template-columns:1fr}}
.story-card{position:relative;overflow:hidden;background:linear-gradient(160deg,rgba(6,182,212,.14),rgba(15,26,46,.35));border:1px solid rgba(34,211,238,.28);border-radius:20px;padding:28px 26px;transition:transform .25s}
.story-card:hover{transform:translateY(-5px)}
.story-emoji{position:absolute;right:18px;top:16px;font-size:34px;opacity:.85}
.story-tag{display:inline-block;font-size:12px;color:var(--brand-2);border:1px solid rgba(34,211,238,.4);border-radius:999px;padding:3px 12px;background:rgba(6,182,212,.1)}
.story-card h3{margin-top:14px;font-size:16.5px;line-height:1.5}
.story-card p{margin-top:10px;font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- APP 展示区 ---------- */
.app-section{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
@media(max-width:900px){.app-section{grid-template-columns:1fr}}
.app-lead{margin-top:14px;font-size:15px;color:var(--muted)}
.app-feature-list{margin-top:30px;display:grid;gap:22px}
.app-feature{display:flex;gap:16px;align-items:flex-start}
.app-feature-icon{flex:0 0 46px;width:46px;height:46px;border-radius:13px;background:rgba(6,182,212,.14);border:1px solid rgba(34,211,238,.3);display:flex;align-items:center;justify-content:center;font-size:21px}
.app-feature h4{font-size:15px}
.app-feature p{margin-top:4px;font-size:13px;color:var(--muted);line-height:1.7}
.phone-wrap{display:flex;justify-content:center}
.phone{position:relative;width:272px;height:562px;border:10px solid #1b2a47;border-radius:46px;background:#0a1120;box-shadow:0 34px 70px rgba(0,0,0,.55),0 0 60px rgba(6,182,212,.18);overflow:hidden}
.phone-notch{position:absolute;top:12px;left:50%;transform:translateX(-50%);width:122px;height:24px;background:#1b2a47;border-radius:14px;z-index:3}
.phone-screen{position:absolute;inset:0;border-radius:36px;overflow:hidden}
.phone-screen img{width:100%;height:100%;object-fit:cover}
.phone::after{content:"";position:absolute;inset:0;border-radius:36px;box-shadow:inset 0 0 26px rgba(34,211,238,.18);pointer-events:none;z-index:2}

/* ---------- 页脚 ---------- */
.footer{background:#060b16;border-top:1px solid var(--line);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-brand p{margin-top:14px;color:var(--muted);font-size:13.5px;line-height:1.9;max-width:300px}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col a{display:block;color:var(--muted);font-size:13.5px;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--brand-2)}
.copyright{border-top:1px solid var(--line);margin-top:46px;padding-top:22px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- 内页 ---------- */
.page-head{padding:64px 0 40px;text-align:center;background:radial-gradient(800px 300px at 50% -20%,rgba(6,182,212,.25),transparent 60%)}
.page-head h1{font-size:36px;font-weight:800}
.page-head p{color:var(--muted);margin-top:12px;font-size:15px}
@media(max-width:640px){.page-head h1{font-size:28px}}

/* 精选页筛选 */
.chip-bar{display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 30px;justify-content:center}
.chip{padding:9px 20px;border-radius:999px;background:var(--card);border:1px solid var(--line);color:var(--muted);font-size:13.5px;transition:all .2s}
.chip:hover{border-color:rgba(34,211,238,.5);color:var(--brand-2)}
.chip.active{background:var(--grad);color:#042832;font-weight:700;border-color:transparent}

/* 关于我们 */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
@media(max-width:900px){.about-grid{grid-template-columns:1fr}}
.about-grid img{border-radius:22px;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.5)}
.about-text h2{font-size:24px;margin-bottom:16px}
.about-text p{color:var(--muted);font-size:14px;line-height:2;margin-bottom:14px}
.timeline{position:relative;margin-top:10px;padding-left:26px;border-left:2px solid rgba(34,211,238,.4);display:grid;gap:26px;max-width:860px}
.timeline-item{position:relative}
.timeline-item::before{content:"";position:absolute;left:-33px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 12px rgba(34,211,238,.8)}
.timeline-item b{display:block;color:var(--brand-2);font-size:13px;letter-spacing:1px}
.timeline-item p{margin-top:6px;color:#c6d4e8;font-size:14px}
.cta-box{margin-top:40px;padding:40px 36px;border-radius:22px;background:linear-gradient(135deg,rgba(6,182,212,.2),rgba(34,211,238,.07));border:1px solid rgba(34,211,238,.35);text-align:center}
.cta-box h3{font-size:22px}
.cta-box p{color:var(--muted);font-size:14px;margin:10px 0 22px}