/* roulang page: index */
:root{
  --brand:#E8385C;
  --brand-grad:linear-gradient(135deg,#E8385C 0%,#FF7A59 55%,#FFB56B 100%);
  --peach:#FF9E6D;
  --score:#F5A623;
  --ink:#2A1520;
  --muted:#6E5560;
  --line:#F0DED8;
  --bg:#FFF7F3;
  --bg-soft:#FFEFE8;
  --card:#FFFFFF;
  --shadow:0 8px 24px rgba(232,56,92,.08);
  --shadow-h:0 16px 36px rgba(232,56,92,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
ul{list-style:none;margin:0;padding:0}
figure{margin:0}
button,input,select{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:48px 0}
.section.alt{background:var(--bg-soft)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:24px}
.sec-title{display:flex;align-items:center;gap:10px;font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;line-height:1.25}
.sec-title::before{content:"";flex:0 0 auto;width:4px;height:1em;border-radius:999px;background:var(--brand-grad)}
.sec-sub{margin-top:6px;color:var(--muted);font-size:14px}
.sec-more{font-size:14px;font-weight:700;color:var(--brand)}
.sec-more:hover{color:#C22B4A}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:12px;border:0;font-size:15px;font-weight:700;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,filter .25s ease,background .25s ease}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 20px rgba(232,56,92,.25)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 12px 26px rgba(232,56,92,.32)}
.btn-line{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-line:hover{background:var(--bg-soft);transform:translateY(-2px)}
.btn-lg{min-height:48px;padding:0 28px;border-radius:999px}
.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;line-height:1.45}
.badge-status{background:var(--ink);color:#fff}
.badge-score{background:linear-gradient(135deg,#FFD27A,#F5A623);color:#4A2A00;font-variant-numeric:tabular-nums}
.badge-cat{background:var(--bg-soft);color:var(--brand)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,247,243,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:14px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:44px;height:44px;border-radius:16px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;letter-spacing:1px}
.brand-text strong{display:block;font-size:17px;font-weight:800;line-height:1.2}
.brand-text small{display:block;font-size:11px;letter-spacing:2px;color:var(--muted)}
.main-nav,.header-actions{display:none}
.nav-toggle{position:absolute;opacity:0;pointer-events:none}
.nav-burger{margin-left:auto;width:44px;height:44px;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:0 11px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer}
.nav-burger span{height:2px;border-radius:2px;background:var(--ink)}
.mobile-drawer{display:none;padding:8px 20px 20px;background:#fff;border-top:1px solid var(--line)}
.nav-toggle:checked ~ .mobile-drawer{display:block}
.mobile-drawer a:not(.btn){display:flex;align-items:center;min-height:44px;font-weight:700;border-bottom:1px solid var(--line)}
.mobile-drawer .btn{width:100%;margin-top:14px}
.hero{position:relative;padding:36px 0 44px;background:linear-gradient(180deg,#FFEFE8,#FFF7F3);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/52f69e5ecd7f983a.jpg") center/cover no-repeat;opacity:.10;pointer-events:none}
.hero-inner{position:relative;display:grid;gap:32px}
.hero-eyebrow{display:inline-block;padding:5px 14px;border-radius:999px;background:#fff;border:1px solid #F7C6B8;font-size:12px;font-weight:700;color:var(--brand)}
.hero h1{margin:14px 0;font-size:clamp(2rem,4.6vw,3.25rem);font-weight:800;line-height:1.12;letter-spacing:-.01em}
.grad{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:16px;font-weight:700;margin-bottom:10px}
.hero-desc{max-width:580px;margin-bottom:22px;color:var(--muted)}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{min-width:0}
.poster-stack{position:relative;height:290px;margin-bottom:18px}
.poster-stack figure{position:absolute;aspect-ratio:2/3;border-radius:16px;overflow:hidden;box-shadow:0 14px 34px rgba(232,56,92,.22)}
.poster-stack img{width:100%;height:100%;object-fit:cover}
.poster-stack .p1{left:0;top:14px;width:46%;transform:rotate(-5deg)}
.poster-stack .p2{left:26%;top:0;width:50%;z-index:2}
.poster-stack .p3{right:0;top:22px;width:44%;transform:rotate(5deg)}
.poster-stack .badge{position:absolute;z-index:3}
.poster-stack .b-score{left:50%;top:6px;transform:translateX(-40%)}
.poster-stack .b-status{right:6px;bottom:96px}
.hero-stats{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:4px}
.hero-stats li{flex:0 0 auto;scroll-snap-align:start;display:flex;align-items:baseline;gap:6px;padding:8px 16px;background:#fff;border:1px solid #F7C6B8;border-radius:999px}
.hero-stats b{font-size:16px;font-weight:800;font-variant-numeric:tabular-nums}
.hero-stats span{font-size:12px;color:var(--muted)}
.grid-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stat{position:relative;overflow:hidden;padding:18px 12px;background:var(--card);border-radius:18px;box-shadow:var(--shadow);text-align:center}
.stat::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad)}
.stat b{display:block;font-size:23px;font-weight:800;font-variant-numeric:tabular-nums;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lab{font-size:13px;font-weight:700;margin-top:2px}
.stat .note{font-size:12px;color:var(--muted)}
.grid-poster{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.card-poster{padding:10px;background:var(--card);border-radius:18px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.card-poster:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.poster-wrap{position:relative;aspect-ratio:2/3;border-radius:12px;overflow:hidden;background:var(--bg-soft)}
.poster-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-poster:hover .poster-wrap img{transform:scale(1.03)}
.poster-wrap .badge-status{position:absolute;top:8px;left:8px}
.poster-wrap .badge-score{position:absolute;bottom:8px;right:8px}
.card-poster h3{margin:10px 2px 2px;font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-poster:hover h3{color:var(--brand)}
.card-poster .meta{margin:0 2px 4px;font-size:12px;color:var(--muted)}
.grid-hot{display:grid;grid-template-columns:1fr;gap:14px}
.card-hot{display:flex;gap:12px;padding:12px;background:var(--card);border-radius:18px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.card-hot:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.card-hot figure{flex:0 0 40%;aspect-ratio:4/3;border-radius:12px;overflow:hidden}
.card-hot img{width:100%;height:100%;object-fit:cover}
.card-hot .info{flex:1;min-width:0}
.card-hot h3{font-size:15px;font-weight:700;margin-bottom:6px}
.card-hot p{font-size:13px;color:var(--muted);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.grid-channels{display:grid;grid-template-columns:1fr;gap:14px}
.channel{position:relative;display:block;padding:20px 16px;background:var(--card);border-radius:20px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.channel::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:999px;background:var(--brand-grad);opacity:0;transition:opacity .25s ease}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.channel:hover::before{opacity:1}
.channel-icon{width:44px;height:44px;margin-bottom:12px;border-radius:14px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800}
.channel h3{font-size:1.0625rem;margin-bottom:6px}
.channel p{font-size:13px;color:var(--muted);margin-bottom:10px}
.channel .samples{font-size:12px;color:var(--brand);font-weight:700}
.grid-topics{display:grid;grid-template-columns:1fr;gap:16px}
.topic{overflow:hidden;background:var(--card);border-radius:24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.topic:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.topic figure{aspect-ratio:4/3;overflow:hidden}
.topic img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.topic:hover img{transform:scale(1.04)}
.topic-body{padding:16px}
.topic-body h3{font-size:1.0625rem;margin-bottom:6px}
.topic-body p{font-size:13px;color:var(--muted);margin-bottom:12px}
.grid-follow{display:grid;grid-template-columns:1fr;gap:14px}
.follow-card{display:flex;align-items:center;gap:12px;padding:12px;background:var(--card);border-radius:18px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.follow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.follow-card img{flex:0 0 auto;width:72px;height:108px;object-fit:cover;border-radius:12px}
.follow-card .fc-body{flex:1;min-width:0}
.follow-card h3{font-size:15px;font-weight:700;margin-bottom:4px}
.progress{height:6px;margin:8px 0 6px;border-radius:999px;background:var(--bg-soft);overflow:hidden}
.progress span{display:block;height:100%;border-radius:999px;background:var(--brand-grad)}
.follow-card .fc-note{font-size:12px;color:var(--muted)}
.table-wrap{overflow-x:auto;background:var(--card);border-radius:24px;box-shadow:var(--shadow)}
table{width:100%;min-width:640px;border-collapse:collapse}
th,td{padding:14px 16px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
thead th{background:var(--bg-soft);font-size:13px;font-weight:700;color:var(--muted);white-space:nowrap}
tbody tr:nth-child(even){background:#FFFAF8}
tbody tr:last-child td{border-bottom:0}
td:first-child{font-weight:700;background:#FFFBF9}
.col-us{background:linear-gradient(180deg,#FFF1EC,#FFF8F5);color:var(--brand);font-weight:700}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.pill{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:700}
.pill.active{background:var(--brand-grad);color:#fff;border-color:transparent}
.rank-grid{display:grid;grid-template-columns:1fr;gap:0}
.rank-item{display:flex;align-items:center;gap:12px;padding:12px 8px;border-bottom:1px dashed var(--line);transition:background .2s ease}
.rank-item:hover{background:var(--bg-soft);border-radius:12px}
.rank-no{flex:0 0 auto;width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:var(--bg-soft);color:var(--muted);font-size:14px;font-weight:800;font-variant-numeric:tabular-nums}
.rank-no.top{background:linear-gradient(135deg,#FFD27A,#F5A623);color:#4A2A00}
.rank-main{flex:1;min-width:0}
.rank-main strong{display:block;font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-main small{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.milestones{display:grid;grid-template-columns:1fr;gap:16px}
.mile{position:relative;padding:22px 16px 18px;background:var(--card);border-radius:18px;box-shadow:var(--shadow)}
.mile::before{content:"";position:absolute;top:0;left:18px;right:18px;height:4px;border-radius:999px;background:var(--brand-grad)}
.mile .dot{width:10px;height:10px;border-radius:50%;background:var(--brand-grad);margin-bottom:10px}
.mile b{display:block;font-size:15px;margin-bottom:6px}
.mile p{font-size:13px;color:var(--muted)}
.grid-news{display:grid;grid-template-columns:1fr;gap:16px}
.news-card{overflow:hidden;background:var(--card);border-radius:18px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.news-card figure{aspect-ratio:16/9;overflow:hidden}
.news-card img{width:100%;height:100%;object-fit:cover}
.news-card .nb{padding:14px 16px}
.news-card h3{font-size:15px;font-weight:700;line-height:1.55;margin-bottom:8px}
.news-card:hover h3{color:var(--brand)}
.news-card time{font-size:12px;color:var(--muted)}
.grid-guard{display:grid;grid-template-columns:1fr;gap:14px}
.guard{padding:20px;background:var(--bg-soft);border-radius:18px}
.guard .gi{width:40px;height:40px;margin-bottom:12px;border-radius:12px;background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800}
.guard h3{font-size:1.0625rem;margin-bottom:6px}
.guard p{font-size:13px;color:var(--muted)}
.help-list{display:grid;grid-template-columns:1fr;gap:10px}
.help-item{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:16px;font-size:14px;font-weight:700;transition:border-color .2s ease,color .2s ease,transform .2s ease}
.help-item:hover{border-color:var(--brand);color:var(--brand);transform:translateX(3px)}
.help-item span{color:var(--brand);font-weight:800}
.faq-list{display:grid;gap:12px}
details.faq{padding:0 18px;background:var(--card);border:1px solid var(--line);border-radius:20px;transition:border-color .25s ease}
details.faq[open]{border-color:#F7C6B8;box-shadow:inset 3px 0 0 var(--brand)}
summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;padding:18px 0;font-size:15px;font-weight:700;cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--bg-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800}
details[open] summary{color:var(--brand)}
details[open] summary::after{content:"−"}
.faq p{padding-bottom:18px;font-size:14px;color:var(--muted)}
.subscribe{padding:26px 20px;border-radius:28px;background:var(--brand-grad);color:#fff}
.subscribe h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:800;margin-bottom:10px}
.subscribe .sub-lead{font-size:14px;margin-bottom:16px;color:#FFF3EF}
.sub-points{display:grid;gap:8px;margin-bottom:16px}
.sub-points li{font-size:14px;display:flex;align-items:center;gap:8px}
.sub-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:#fff;flex:0 0 auto}
.sub-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.9);color:var(--brand);font-size:12px;font-weight:800}
.sub-form{margin-top:18px;padding:20px;background:#fff;border-radius:20px;color:var(--ink)}
.field{margin-bottom:14px}
.field label{display:block;margin-bottom:6px;font-size:13px;font-weight:700}
.req{color:var(--brand)}
.field input,.field select{width:100%;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-size:14px}
.btn-sub{width:100%}
.site-footer{margin-top:48px;padding:40px 0 24px;background:var(--ink);color:#F6E7E2}
.footer-grid{display:grid;grid-template-columns:1fr;gap:26px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand .brand-mark{width:44px;height:44px;border-radius:16px}
.site-footer p{font-size:13px;color:#C7A9A6;line-height:1.8}
.site-footer h3{font-size:14px;margin-bottom:12px;color:#fff}
.site-footer li{margin-bottom:8px;font-size:13px}
.site-footer a:hover{color:var(--peach)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#C7A9A6}
@media (min-width:520px){
  .grid-channels,.grid-topics,.grid-news,.grid-guard{grid-template-columns:repeat(2,1fr)}
  .grid-follow,.help-list{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  .container{padding:0 24px}
  .section{padding:56px 0}
  .header-inner{min-height:72px}
  .brand-mark{width:56px;height:56px;border-radius:24px;font-size:18px}
  .brand-text strong{font-size:18px}
  .hero{padding:48px 0 56px}
  .poster-stack{height:380px}
  .grid-stats{grid-template-columns:repeat(3,1fr)}
  .grid-poster{grid-template-columns:repeat(3,1fr)}
  .grid-hot,.grid-topics,.grid-news,.grid-follow,.grid-guard{grid-template-columns:repeat(2,1fr)}
  .milestones{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (min-width:1024px){
  .section{padding:72px 0}
  .main-nav{display:flex;gap:22px;margin-left:auto;font-size:15px;font-weight:700}
  .main-nav a{position:relative;padding:6px 0;color:var(--ink)}
  .main-nav a::after{content:"";position:absolute;left:50%;bottom:0;width:20px;height:2px;border-radius:2px;background:var(--brand-grad);transform:translateX(-50%) scaleX(0);transition:transform .25s ease}
  .main-nav a:hover{color:var(--brand)}
  .main-nav a:hover::after{transform:translateX(-50%) scaleX(1)}
  .header-actions{display:flex;gap:10px;margin-left:8px}
  .nav-burger,.mobile-drawer{display:none}
  .nav-toggle:checked ~ .mobile-drawer{display:none}
  .hero{padding:64px 0 72px}
  .hero-inner{grid-template-columns:1.05fr .95fr;align-items:center;gap:48px}
  .grid-stats{grid-template-columns:repeat(6,1fr);gap:16px}
  .grid-poster{grid-template-columns:repeat(4,1fr);gap:22px}
  .grid-hot{grid-template-columns:repeat(3,1fr)}
  .grid-channels{grid-template-columns:repeat(5,1fr)}
  .grid-topics{grid-template-columns:repeat(4,1fr)}
  .grid-follow{grid-template-columns:repeat(3,1fr)}
  .grid-news{grid-template-columns:repeat(3,1fr)}
  .grid-guard{grid-template-columns:repeat(4,1fr)}
  .rank-grid{grid-template-columns:1fr 1fr;column-gap:36px}
  .milestones{grid-template-columns:repeat(5,1fr)}
  .help-list{grid-template-columns:repeat(2,1fr)}
  .subscribe{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:34px;padding:44px}
  .sub-form{margin-top:0}
}
@media (max-width:520px){
  .hero-btns .btn{flex:1 1 100%}
  .sec-head{align-items:flex-start}
}