/* roulang page: index */
:root{
  --b1:#FF5C7A;--b2:#FF8A3D;--accent:#12B8A0;
  --ink:#1B1520;--ink2:#5A5361;--ink3:#8B8490;
  --bg:#FFF7F3;--surface:#FFFFFF;--line:#EDE3DE;
  --grad:linear-gradient(135deg,#FF5C7A 0%,#FF8A3D 100%);
  --r-lg:22px;--r-md:16px;
  --sh1:0 1px 2px rgba(27,21,32,.04);
  --sh2:0 12px 32px rgba(255,92,122,.14);
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,ul{margin:0}
ul{padding:0;list-style:none}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,247,243,.9);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-in{max-width:1280px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:800}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em}
.nav{display:flex;gap:2px;flex:none}
.nav a{display:inline-flex;align-items:center;height:36px;padding:0 11px;border-radius:10px;
  font-size:14px;color:var(--ink2);transition:background .2s ease-out,color .2s ease-out}
.nav a:hover{background:#fff;color:var(--ink)}
.nav a.on{background:#FFE9E2;color:#E24A68;font-weight:600}
.header-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search{width:200px;height:38px;border-radius:999px;border:1px solid var(--line);background:#fff;
  padding:0 16px;font-size:13px;color:var(--ink);transition:border-color .2s ease-out,box-shadow .2s ease-out}
.search::placeholder{color:var(--ink3)}
.search:focus{outline:none;border-color:var(--b1);box-shadow:0 0 0 2px rgba(255,92,122,.28)}
.menu-btn{display:none;align-items:center;justify-content:center;min-width:44px;height:38px;padding:0 14px;
  border-radius:12px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;
  color:var(--ink);cursor:pointer}
.drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:12px 24px 20px}
.drawer a{display:flex;align-items:center;min-height:48px;padding:0 6px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink2)}
.drawer .search{width:100%;height:44px;margin:12px 0}
#navToggle:checked ~ .drawer{display:block}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:14px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,border-color .2s ease-out,color .2s ease-out}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:12px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 16px rgba(255,92,122,.24)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 10px rgba(255,92,122,.2)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:#FFB49F;color:#E24A68}

/* hero */
.hero{padding:44px 0 52px}
.hero-grid{display:grid;grid-template-columns:1.08fr 1fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:#FFEDE7;color:#E24A68;font-size:12px;font-weight:600}
h1{font-size:clamp(32px,4.4vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.01em;margin-top:16px}
h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:14px;font-size:17px;font-weight:600}
.hero-desc{margin-top:12px;font-size:15px;color:var(--ink2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.hero-points span{font-size:13px;color:var(--ink2);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:4px 12px}
.hero-visual{position:relative}
.hero-visual::before{content:"";position:absolute;left:-24px;top:8%;bottom:8%;width:1px;
  background:linear-gradient(180deg,transparent,#FFC6B4,transparent)}
.hero-shot{border-radius:24px;overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);box-shadow:var(--sh1)}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-badges{position:absolute;left:16px;bottom:16px;display:flex;gap:8px;flex-wrap:wrap}
.hbadge{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid #FFD2C2;
  border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;box-shadow:var(--sh1)}
.hbadge b{font-variant-numeric:tabular-nums;color:#0E9A86;font-size:13px}

/* sections */
.section{padding:64px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:820px;margin-bottom:28px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:-.01em}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--ink2)}

/* stats */
#stats{position:relative;overflow:hidden}
#stats::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(#1B1520 1px,transparent 1px);background-size:24px 24px;opacity:.05}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.stat{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat i{font-style:normal;font-size:14px;font-weight:600;color:var(--ink2);margin-left:4px}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--ink3)}

/* cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;
  box-shadow:var(--sh1);transition:box-shadow .2s ease-out,transform .2s ease-out}
.card:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.badge{display:inline-flex;align-items:center;height:23px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap}
.badge-grad{background:var(--grad);color:#fff}
.badge-accent{background:rgba(18,184,160,.1);color:#0E9A86}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink2)}

.grid-hot{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.v-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#F5EAE4}
.v-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.card:hover .v-thumb img{transform:scale(1.03)}
.v-badge{position:absolute;top:10px;left:10px}
.v-dur{position:absolute;right:10px;bottom:10px;background:rgba(27,21,32,.72);color:#fff;
  font-size:12px;font-weight:500;padding:2px 8px;border-radius:8px;font-variant-numeric:tabular-nums}
.v-body{padding:14px 16px 16px}
.v-title{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden}
.v-meta{margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:12.5px;color:var(--ink3)}
.v-meta em{font-style:normal;font-weight:600;color:#0E9A86;font-variant-numeric:tabular-nums}

/* channels */
.chan-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.chan{grid-column:span 4;position:relative;overflow:hidden;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.chan::after{content:"";position:absolute;right:-32px;top:-32px;width:92px;height:92px;
  border-radius:50%;background:var(--grad);opacity:.12}
.chan.hi{grid-row:span 2;padding:26px;background:linear-gradient(160deg,#FFF1EC,#FFFFFF 62%)}
.chan-idx{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:11px;background:rgba(255,92,122,.1);color:#E24A68;font-weight:800;font-size:14px;
  font-variant-numeric:tabular-nums}
.chan h3{margin-top:12px;font-size:19px;font-weight:700}
.chan p{margin-top:8px;font-size:14px;color:var(--ink2)}
.chan-upd{display:inline-flex;margin-top:14px;padding:3px 10px;border-radius:999px;
  font-size:12px;color:#0E9A86;background:rgba(18,184,160,.09)}

/* latest */
.grid-latest{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.lt{display:flex;gap:14px;align-items:center;padding:12px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh1);
  transition:box-shadow .2s ease-out,transform .2s ease-out}
.lt:hover{box-shadow:var(--sh2);transform:translateY(-2px)}
.lt-thumb{width:38%;flex:none;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#F5EAE4}
.lt-thumb img{width:100%;height:100%;object-fit:cover}
.lt-title{font-size:15.5px;font-weight:600;line-height:1.45}
.lt-meta{margin-top:6px;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--ink3)}

/* compare */
.cmp{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.cmp-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:12px;align-items:center;
  padding:16px 20px;border-bottom:1px solid var(--line);font-size:14.5px}
.cmp-row:last-child{border-bottom:0}
.cmp-head{background:#FFF1EC;font-size:13px;font-weight:700;color:var(--ink2)}
.cmp-dim{font-weight:600;color:var(--ink)}
.cmp-bad{color:var(--ink3)}
.cmp-good{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--ink)}
.tick{width:18px;height:18px;flex:none;border-radius:50%;background:rgba(18,184,160,.12);
  color:#0E9A86;display:grid;place-items:center;font-size:11px;font-weight:700}

/* ranking */
.rank li{position:relative;display:grid;grid-template-columns:54px 1fr 100px 78px 96px;gap:14px;
  align-items:center;padding:13px 16px;border-radius:14px;transition:background .2s ease-out}
.rank li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:2px;background:var(--grad);transition:height .2s ease-out}
.rank li:hover{background:#FFF1EC}
.rank li:hover::before{height:60%}
.rank-num{font-size:22px;font-weight:800;color:var(--ink3);font-variant-numeric:tabular-nums}
.rank li:nth-child(-n+3) .rank-num{font-size:26px;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.rank-title{font-size:15.5px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rank-heat{font-size:13px;color:var(--ink3);text-align:right;font-variant-numeric:tabular-nums}
.rank-score{text-align:center;font-size:14px;font-weight:700;color:#0E9A86;
  background:rgba(18,184,160,.1);border-radius:999px;padding:3px 0;font-variant-numeric:tabular-nums}
.rank-cat{text-align:center;font-size:12px;color:var(--ink2);background:#fff;
  border:1px solid var(--line);border-radius:999px;padding:3px 0}

/* milestone */
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--line)}
.tl{position:relative;min-height:200px}
.tl-dot{position:absolute;top:50%;left:0;transform:translateY(-50%);width:15px;height:15px;
  border-radius:50%;background:var(--grad);box-shadow:0 0 0 4px var(--bg)}
.tl-body{position:absolute;left:0;right:16px}
.tl:nth-child(odd) .tl-body{bottom:calc(50% + 20px)}
.tl:nth-child(even) .tl-body{top:calc(50% + 20px)}
.tl-year{font-size:13px;font-weight:700;color:#E24A68}
.tl h3{font-size:16px;font-weight:600;margin-top:2px}
.tl p{margin-top:6px;font-size:13.5px;color:var(--ink2)}

/* topics */
.topics{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.topic{display:flex;align-items:center;gap:16px;padding:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);transition:box-shadow .2s ease-out}
.topic:hover{box-shadow:var(--sh2)}
.topic-img{width:34%;flex:none;aspect-ratio:3/2;border-radius:12px;overflow:hidden;background:#F5EAE4}
.topic-img img{width:100%;height:100%;object-fit:cover}
.topic h3{font-size:16px;font-weight:600}
.topic p{margin-top:6px;font-size:13px;color:var(--ink2)}

/* news */
.news-wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:28px}
.news-main{display:block}
.news-main-img{aspect-ratio:4/3;overflow:hidden;background:#F5EAE4}
.news-main-img img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.news-main:hover .news-main-img img{transform:scale(1.03)}
.news-main-body{padding:18px 20px 20px}
.news-main-body h3{margin-top:10px;font-size:18px;font-weight:600;line-height:1.5}
.news-main-body p{margin-top:8px;font-size:14px;color:var(--ink2)}
.news-date{display:block;margin-top:10px;font-size:12.5px;color:var(--ink3);font-variant-numeric:tabular-nums}
.news-item{padding:13px 0;border-bottom:1px solid var(--line)}
.news-item:first-child{padding-top:0}
.news-item:last-child{border-bottom:0;padding-bottom:0}
.news-item h3{font-size:15px;font-weight:600;line-height:1.5}
.news-item p{margin-top:4px;font-size:13px;color:var(--ink3)}
.news-item span{display:block;margin-top:4px;font-size:12px;color:var(--ink3);font-variant-numeric:tabular-nums}

/* guarantee */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.guard{background:#FFFAF7;border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.guard-ico{width:36px;height:36px;border-radius:11px;background:rgba(18,184,160,.1);color:#0E9A86;
  display:grid;place-items:center;font-size:15px;font-weight:800}
.guard h3{margin-top:12px;font-size:16px;font-weight:600}
.guard p{margin-top:6px;font-size:13px;color:var(--ink2)}

/* quick + faq */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quick{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:18px}
.quick h3{font-size:15px;font-weight:700}
.quick p{margin-top:8px;font-size:13px;color:var(--ink2)}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.faq h3{font-size:15.5px;font-weight:600}
.faq p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink2)}

/* subscribe */
#subscribe{background-image:linear-gradient(135deg,rgba(255,247,243,.95),rgba(255,236,228,.92)),url(/assets/images/f4932ec7086aa0d1.jpg);
  background-size:cover;background-position:center;border-top:1px solid var(--line)}
.sub-box{max-width:640px;margin:0 auto;background:rgba(255,255,255,.95);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh1)}
.sub-box h2{font-size:24px;font-weight:700}
.sub-box .lead{margin-top:10px;font-size:14.5px;color:var(--ink2)}
.field{width:100%;height:48px;border-radius:14px;border:1px solid var(--line);padding:0 16px;
  font-size:15px;color:var(--ink);background:#fff;margin-top:20px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out}
.field::placeholder{color:var(--ink3)}
.field:focus{outline:none;border-color:var(--b1);box-shadow:0 0 0 2px rgba(255,92,122,.3)}
.sub-box .btn{width:100%;margin-top:12px}
.check{display:flex;align-items:flex-start;gap:8px;margin-top:14px;font-size:13px;color:var(--ink2)}
.check input{width:16px;height:16px;margin-top:3px;accent-color:#FF5C7A}
.privacy{margin-top:10px;font-size:12.5px;color:var(--ink3)}

/* footer */
.site-footer{background:#FBEDE7;border-top:1px solid var(--line);padding:48px 0 24px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.foot-brand .brand-name{font-size:17px}
.foot-brand p{margin-top:12px;font-size:13.5px;color:var(--ink2);max-width:290px}
.foot-col h3{font-size:14px;font-weight:700}
.foot-col a,.foot-col li{display:block;font-size:13.5px;color:var(--ink2);padding:5px 0}
.foot-col a:hover{color:#E24A68}
.foot-bottom{margin-top:32px;padding-top:16px;border-top:1px solid #EBDAD2;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:var(--ink3)}

@media (max-width:1024px){
  .nav a{padding:0 8px;font-size:13.5px}
  .search{width:160px}
  .hero-grid{gap:32px}
  .stats-grid{grid-template-columns:repeat(3,1fr)}
  .grid-hot{grid-template-columns:repeat(3,1fr)}
  .chan-grid{grid-template-columns:repeat(2,1fr)}
  .chan,.chan.hi{grid-column:auto;grid-row:auto}
  .grid-latest{grid-template-columns:repeat(2,1fr)}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .header-in{height:56px;gap:12px}
  .nav{display:none}
  .header-right .search{display:none}
  .menu-btn{display:inline-flex}
  .hero{padding:32px 0 40px}
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-visual::before{display:none}
  .hero-badges{position:static;margin-top:12px}
  .section{padding:48px 0}
  .grid-hot{grid-template-columns:repeat(2,1fr);gap:16px}
  .grid-latest{grid-template-columns:1fr}
  .chan-grid{grid-template-columns:1fr}
  .cmp-row{grid-template-columns:1fr 1fr;gap:8px;padding:14px 16px;font-size:13.5px}
  .cmp-dim{grid-column:1/-1;font-size:12.5px;color:var(--ink3);font-weight:600}
  .cmp-head{font-size:12px}
  .timeline{grid-template-columns:1fr;gap:0}
  .timeline::before{left:7px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .tl{min-height:0;padding:0 0 24px 28px}
  .tl-dot{top:6px;left:0;transform:none}
  .tl-body{position:static;right:auto}
  .tl:nth-child(odd) .tl-body,.tl:nth-child(even) .tl-body{position:static;bottom:auto;top:auto}
  .news-wrap{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:24px}
  .rank li{grid-template-columns:44px 1fr 64px;gap:10px;padding:12px}
  .rank-heat,.rank-cat{display:none}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .header-in{padding:0 16px}
  .drawer{padding:12px 16px 20px}
  .brand-name{font-size:16px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat b{font-size:26px}
  .grid-hot{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:1fr}
  .topics{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .sub-box{padding:22px}
  .hero-actions .btn{flex:1 1 100%}
  .rank-title{white-space:normal;line-height:1.4}
  .cmp-row{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}