/* roulang page: index */
:root{
  --green:#12B886;--orange:#F76707;--yellow:#FFD43B;
  --bg:#F7F5F0;--dark:#151A1D;--text:#161A1D;--muted:#5C6266;
  --line:rgba(22,26,29,.08);--green-soft:#E8F8F2;--orange-soft:#FFF0E8;
  --grad:linear-gradient(135deg,#12B886 0%,#F76707 100%);
  --r-lg:24px;--r-md:18px;--r-sm:14px;--pill:999px;
  --shadow:0 8px 24px rgba(22,26,29,.06);
  --shadow-hover:0 16px 36px rgba(22,26,29,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:42px;height:42px;border-radius:13px;background:var(--grad);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700;letter-spacing:.4px}
.logo-name{font-size:17px;font-weight:700;letter-spacing:.2px}
.nav{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:15px}
.nav a{color:var(--muted);padding:8px 0;border-bottom:2px solid transparent;transition:color .2s,border-color .2s}
.nav a:hover{color:var(--text);border-bottom-color:var(--green)}
.header-cta{min-height:42px;padding:0 20px;font-size:14px}
.mnav{display:none;margin-left:auto;position:relative}
.mnav summary{list-style:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.mnav summary::-webkit-details-marker{display:none}
.mnav summary i{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.mnav-panel{position:absolute;right:0;top:56px;width:min(80vw,282px);background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-hover);padding:12px;display:grid;gap:2px}
.mnav-panel a{padding:12px 14px;border-radius:12px;font-size:15px}
.mnav-panel a:hover{background:var(--green-soft)}
.mnav-panel .btn{margin-top:8px;width:100%}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:var(--pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s,filter .2s,background .2s,border-color .2s,box-shadow .2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(18,184,134,.26)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{background:var(--green-soft);border-color:var(--green);color:#0d7a5b}
.btn-block{width:100%}

/* hero */
.hero{position:relative;padding:76px 0 72px;background:linear-gradient(rgba(247,245,240,.93),rgba(247,245,240,.97)),url('/assets/images/6e7a7913ba96f94c.jpg') center/cover no-repeat;border-bottom:1px solid var(--line);overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(620px 320px at 16% 6%,rgba(18,184,134,.10),transparent 70%),radial-gradient(540px 300px at 86% 24%,rgba(247,103,7,.09),transparent 70%)}
.hero-inner{position:relative;z-index:1;max-width:860px;margin:0 auto;text-align:center}
.hero-kicker{display:inline-block;font-size:13px;font-weight:500;color:#0d7a5b;background:var(--green-soft);border:1px solid rgba(18,184,134,.22);padding:5px 16px;border-radius:var(--pill)}
.hero h1{font-size:clamp(30px,4vw,48px);line-height:1.15;font-weight:700;margin:20px 0 14px;letter-spacing:-.4px}
.hero-sub{font-size:17px;font-weight:600}
.hero-text{font-size:15px;color:var(--muted);max-width:620px;margin:12px auto 0}
.search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--pill);padding:7px 7px 7px 20px;box-shadow:var(--shadow);max-width:620px;margin:26px auto 0}
.search input{flex:1;min-width:0;height:44px;border:0;background:transparent;font-size:15px;outline:none}
.search .btn{min-height:44px;padding:0 22px;font-size:14px}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px}
.chip{font-size:13px;padding:6px 14px;border-radius:var(--pill);background:#fff;border:1px solid var(--line);color:var(--muted);transition:.2s}
.chip:hover{border-color:var(--green);color:#0d7a5b;background:var(--green-soft)}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:28px}

/* section base */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:34px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:500;letter-spacing:.6px;color:var(--green)}
.kicker::before{content:"";width:26px;height:2px;background:var(--grad);border-radius:2px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;margin:10px 0}
.section-desc{color:var(--muted);font-size:15px;max-width:72ch}

/* stats */
.stats{background:var(--dark);border-radius:var(--r-lg);padding:26px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:18px 18px 16px}
.stat-num{font-size:30px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num span{font-size:13px;font-weight:500;color:rgba(255,255,255,.6);margin-left:4px}
.stat-label{font-size:13px;color:rgba(255,255,255,.62);margin-top:6px}
.stat:nth-child(2) .stat-num{color:var(--yellow)}
.stat:nth-child(4) .stat-num{color:#ffb083}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.cat-card{grid-column:span 3;position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s}
.cat-card:nth-child(1),.cat-card:nth-child(2){grid-column:span 6}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--green)}
.cat-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.cat-card p{font-size:14px;color:var(--muted);line-height:1.7}
.cat-index{position:absolute;right:14px;top:0;font-size:42px;font-weight:700;color:rgba(18,184,134,.10);line-height:1.2;font-variant-numeric:tabular-nums}

/* rooms */
.rooms{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.room{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.room:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.room-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#1e2428}
.room-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.room:hover .room-cover img{transform:scale(1.03)}
.badge-cat{position:absolute;left:10px;top:10px;font-size:12px;font-weight:500;padding:3px 10px;border-radius:var(--pill);background:rgba(21,26,29,.72);color:#fff}
.badge-live{position:absolute;right:10px;bottom:10px;font-size:12px;font-weight:500;padding:3px 10px;border-radius:var(--pill);background:rgba(18,184,134,.92);color:#fff;font-variant-numeric:tabular-nums}
.room-body{padding:14px 16px 18px}
.room-title{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px}
.room-host{font-size:13px;color:var(--muted);margin-bottom:10px}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:12px;padding:2px 9px;border-radius:var(--pill);background:var(--orange-soft);color:#b34a06}

/* upcoming */
.upcoming{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.up-card{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:14px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.up-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.up-cover{flex:0 0 96px;width:96px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#1e2428}
.up-cover img{width:100%;height:100%;object-fit:cover}
.up-body{min-width:0}
.up-time{display:inline-block;font-size:12px;font-weight:600;padding:2px 10px;border-radius:var(--pill);background:var(--yellow);color:#5a4200;margin-bottom:6px;font-variant-numeric:tabular-nums}
.up-title{font-size:14px;font-weight:600;line-height:1.5;margin-bottom:4px}
.up-host{font-size:12px;color:var(--muted)}
.up-btn{display:inline-block;margin-top:8px;font-size:13px;font-weight:600;color:#0d7a5b;border-bottom:1px solid rgba(18,184,134,.45);padding-bottom:1px}

/* rank & compare */
.rank-wrap{display:grid;grid-template-columns:7fr 5fr;gap:22px;align-items:start}
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:8px;box-shadow:var(--shadow)}
.rank-item{display:flex;align-items:center;gap:12px;min-height:56px;padding:6px 12px;border-radius:12px;transition:background .2s}
.rank-item:hover{background:var(--green-soft)}
.rank-no{flex:0 0 34px;height:34px;display:grid;place-items:center;font-size:13px;font-weight:700;border-radius:10px;background:#f1f2f3;color:var(--muted);font-variant-numeric:tabular-nums}
.rank-item:nth-child(-n+3) .rank-no{background:var(--grad);color:#fff}
.rank-name{flex:1;min-width:0;font-size:14px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-cat{font-size:12px;color:var(--muted);flex:0 0 auto}
.rank-num{font-size:13px;font-weight:600;color:var(--orange);flex:0 0 auto;font-variant-numeric:tabular-nums}
.compare{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow);overflow:hidden}
.compare h3{font-size:16px;font-weight:600;padding:18px 18px 12px}
.compare table{width:100%;border-collapse:collapse;font-size:13px}
.compare th,.compare td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}
.compare thead th{font-size:12px;font-weight:500;color:var(--muted);background:#faf9f6}
.compare tbody tr:last-child td{border-bottom:0}
.compare tr.recommend td{background:var(--green-soft)}
.compare tr.recommend td:first-child{font-weight:600;color:#0d7a5b}
.mark{display:inline-block;font-size:11px;font-weight:600;padding:1px 7px;border-radius:var(--pill);background:var(--grad);color:#fff;margin-left:6px}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.tl-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 16px;box-shadow:var(--shadow);border-top:3px solid rgba(18,184,134,.35)}
.tl-item:nth-child(3){border-top-color:var(--orange)}
.tl-ver{display:inline-block;font-size:12px;font-weight:600;padding:2px 10px;border-radius:var(--pill);background:var(--green-soft);color:#0d7a5b;margin-bottom:10px;font-variant-numeric:tabular-nums}
.tl-item h3{font-size:15px;font-weight:600;margin-bottom:6px}
.tl-item p{font-size:13px;color:var(--muted);line-height:1.7}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.news-thumb{flex:0 0 132px;width:132px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#1e2428}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0}
.news-tag{font-size:12px;font-weight:500;color:#0d7a5b}
.news-title{font-size:15px;font-weight:600;line-height:1.5;margin:4px 0 6px}
.news-date{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* secure */
.secure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.secure-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--shadow)}
.secure-icon{width:40px;height:40px;border-radius:12px;background:var(--green-soft);display:grid;place-items:center;margin-bottom:14px}
.secure-icon svg{width:20px;height:20px;stroke:var(--green);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.secure-card h3{font-size:16px;font-weight:600;margin-bottom:6px}
.secure-card p{font-size:13px;color:var(--muted);line-height:1.75}

/* quick */
.quick-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.quick-card{background:var(--green-soft);border:1px solid rgba(18,184,134,.18);border-radius:16px}
.quick-card summary{list-style:none;cursor:pointer;padding:16px 18px;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px}
.quick-card summary::-webkit-details-marker{display:none}
.quick-card summary::after{content:"+";font-size:18px;color:var(--green);font-weight:400}
.quick-card[open] summary::after{content:"−"}
.quick-card p{padding:0 18px 16px;font-size:14px;color:#31614f;line-height:1.8}

/* faq */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.faq-item summary{list-style:none;cursor:pointer;padding:16px 20px;font-size:15px;font-weight:600;display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:18px;color:var(--orange)}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 20px 18px;font-size:14px;color:var(--muted)}

/* download */
.download-wrap{display:grid;grid-template-columns:7fr 5fr;gap:22px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label,.field-label{display:block;font-size:14px;font-weight:500;margin-bottom:8px}
.radio-row{display:flex;flex-wrap:wrap;gap:8px}
.opt{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;border:1px solid var(--line);border-radius:var(--pill);font-size:14px;cursor:pointer;background:#fff;transition:border-color .2s,background .2s,color .2s}
.opt input{accent-color:var(--green);margin:0}
.opt:has(input:checked){border-color:var(--green);background:var(--green-soft);color:#0d7a5b;font-weight:600}
.field input[type="text"],.field select{width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:14px;background:#fff;font-size:15px;transition:border-color .2s,box-shadow .2s}
.field input[type="text"]:focus,.field select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(18,184,134,.15)}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin-bottom:20px;line-height:1.7}
.agree input{margin-top:4px;accent-color:var(--green)}
.qr-block{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow)}
.qr-shot{width:100%;aspect-ratio:1/1;border-radius:18px;overflow:hidden;background:#f1f2f3;margin-bottom:16px}
.qr-shot img{width:100%;height:100%;object-fit:cover}
.qr-list{display:grid;gap:10px;font-size:13px;color:var(--muted)}
.qr-list li{padding-left:16px;position:relative}
.qr-list li::before{content:"";position:absolute;left:0;top:.65em;width:6px;height:6px;border-radius:50%;background:var(--green)}

/* footer */
.site-footer{position:relative;background:var(--dark);color:rgba(255,255,255,.72);margin-top:16px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--grad)}
.footer-inner{padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .logo-name{color:#fff}
.footer-brand p{font-size:13px;line-height:1.8;margin-top:14px;max-width:34ch}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:12px}
.footer-col a{display:block;font-size:14px;padding:6px 0;color:rgba(255,255,255,.66);transition:color .2s}
.footer-col a:hover{color:var(--green)}
.footer-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:13px;color:rgba(255,255,255,.5);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media (max-width:1024px){
  .nav,.header-cta{display:none}
  .mnav{display:block}
  .rooms{grid-template-columns:repeat(3,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .cat-card,.cat-card:nth-child(1),.cat-card:nth-child(2){grid-column:auto}
  .upcoming{grid-template-columns:repeat(2,1fr)}
  .rank-wrap{grid-template-columns:1fr}
  .timeline{grid-template-columns:repeat(3,1fr)}
  .secure-grid{grid-template-columns:repeat(2,1fr)}
  .download-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:768px){
  .container{padding:0 18px}
  .hero{padding:56px 0 52px}
  .section{padding:48px 0}
  .rooms{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .quick-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .upcoming{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .header-inner{min-height:64px}
  .footer-inner{padding-top:40px}
}

@media (max-width:520px){
  .rooms{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .stats{padding:16px;gap:12px}
  .stat-num{font-size:24px}
  .search{flex-direction:column;align-items:stretch;border-radius:20px;padding:12px}
  .search input{height:40px;padding:0 6px}
  .search .btn{width:100%}
  .up-cover{flex:0 0 84px;width:84px}
  .news-thumb{flex:0 0 104px;width:104px}
  .form-card,.qr-block{padding:18px}
  .footer-grid{grid-template-columns:1fr}
  .compare table{font-size:12px}
  .compare th,.compare td{padding:8px 8px}
  .rank-cat{display:none}
}