/* roulang page: index */
:root{
  --brand:#8A3B12;
  --brand-2:#D96C1E;
  --teal:#2FA8A0;
  --lime:#B7D84B;
  --orange:#E07A2E;
  --bg:#FFF8EE;
  --surface:#FFFFFF;
  --surface-2:#FFFDF9;
  --ink:#241A14;
  --muted:#6B5A4E;
  --line:#E8D9C8;
  --badge:#FBE8D2;
  --grad:linear-gradient(120deg,#8A3B12 0%,#D96C1E 50%,#2FA8A0 100%);
  --radius:22px;
  --radius-lg:28px;
  --shadow:0 12px 30px rgba(80,45,20,.08);
  --shadow-hover:0 18px 40px rgba(80,45,20,.14);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,p,dl,dd,dt,figure,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,248,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:1.06rem;letter-spacing:.4px;color:var(--ink);flex:none}
.brand-mark{width:40px;height:40px;border-radius:12px;background:var(--grad);display:grid;place-items:center;flex:none}
.brand-mark svg{width:18px;height:18px;fill:#fff}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:10px 11px;border-radius:10px;font-size:.92rem;color:var(--muted);transition:color .2s,background .2s}
.nav-links a:hover{color:var(--brand);background:var(--badge)}
.nav-links a.is-active{color:var(--brand);font-weight:700}
.nav-links a.is-active::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:3px;border-radius:3px;background:var(--grad)}
.nav-links a.nav-cta{margin-left:10px;padding:0 20px;border-radius:999px;background:var(--grad);color:#fff;font-weight:700;box-shadow:0 8px 20px rgba(138,59,18,.2)}
.nav-links a.nav-cta:hover{filter:brightness(1.06);color:#fff}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--brand);align-items:center;justify-content:center}
.menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round}

/* hero */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:linear-gradient(180deg,rgba(255,248,238,.93),rgba(255,248,238,.99)),url("/assets/images/f794edd3981abeca.jpg") center/cover no-repeat}
.hero::before{content:"";position:absolute;right:-140px;top:-180px;width:540px;height:540px;border-radius:50%;background:radial-gradient(circle,rgba(217,108,30,.24),rgba(217,108,30,0) 70%)}
.hero::after{content:"";position:absolute;left:-160px;bottom:-220px;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(47,168,160,.2),rgba(47,168,160,0) 70%)}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.15;font-weight:800;letter-spacing:-.5px}
.hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:14px;font-size:1.12rem;font-weight:600;color:var(--ink)}
.hero-desc{margin-top:16px;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;font-weight:700;font-size:.96rem;border:1px solid transparent;transition:transform .2s,box-shadow .2s,filter .2s,border-color .2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(138,59,18,.24)}
.btn-primary:hover{filter:brightness(1.07);box-shadow:0 14px 32px rgba(138,59,18,.3);transform:translateY(-2px)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-2);transform:translateY(-2px)}
.hero-art{position:relative;display:grid;gap:14px;padding-bottom:30px}
.art-main{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.art-main img{aspect-ratio:16/9;object-fit:cover}
.art-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.art-small{margin:0;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.art-small img{aspect-ratio:3/4;object-fit:cover}
.badge-row{position:absolute;left:0;right:0;bottom:0;display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:var(--badge);border:1px solid #F1D2A8;color:var(--brand);font-size:12.5px;font-weight:700;box-shadow:0 8px 18px rgba(80,45,20,.12)}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2)}

/* sections */
.section{padding:76px 0}
.section--alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.sec-head h2{font-size:clamp(1.6rem,2.6vw,2.25rem);line-height:1.25;font-weight:700}
.sec-sub{margin-top:6px;color:var(--muted);font-size:.9rem}
.more-link{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:var(--brand);font-weight:700;font-size:.94rem;transition:color .2s}
.more-link:hover{color:var(--brand-2)}

/* stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#E2B27E}
.stat-num{font-size:2rem;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-label{margin-top:4px;color:var(--muted);font-size:.9rem}
.trend{display:inline-flex;margin-top:12px;padding:2px 10px;border-radius:999px;background:var(--badge);color:var(--brand);font-size:12px;font-weight:700}

/* video cards */
.hot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.v-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.v-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#E2B27E}
.v-card a{display:block;height:100%}
.thumb{position:relative;margin:0;overflow:hidden}
.thumb img{aspect-ratio:16/9;object-fit:cover;transition:transform .45s}
.v-card:hover .thumb img{transform:scale(1.04)}
.dur{position:absolute;right:10px;bottom:10px;padding:1px 8px;border-radius:6px;background:rgba(36,26,20,.8);color:#fff;font-size:12px;font-weight:700}
.v-body{padding:14px 16px 18px}
.v-body h3{font-size:1.02rem;font-weight:700;line-height:1.4}
.v-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;color:var(--muted);font-size:.82rem}
.tag{display:inline-flex;padding:1px 10px;border-radius:999px;background:var(--badge);color:var(--brand);font-size:12px;font-weight:700;flex:none}
.feat{grid-column:span 2;grid-row:span 2}
.feat .thumb img{aspect-ratio:16/10}
.feat .v-body h3{font-size:1.35rem}
.feat .v-body{padding:18px 20px 22px}

/* latest */
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flag{position:absolute;left:10px;top:10px;padding:1px 9px;border-radius:6px;font-size:12px;font-weight:700}
.q-hd{background:#E3F4F2;color:#1D7B76}
.q-bd{background:var(--badge);color:var(--brand)}
.q-up{background:#F1F6DC;color:#5C7A16}

/* channels */
.ch-list{display:grid;grid-template-columns:1fr 1fr;gap:0 44px}
.ch-item{display:flex;align-items:center;gap:18px;padding:20px 4px;border-bottom:1px solid var(--line);min-height:44px;transition:background .2s}
.ch-item:hover{background:rgba(251,232,210,.45)}
.ch-no{flex:none;width:34px;font-size:1.05rem;font-weight:800;color:#C9A98A;font-variant-numeric:tabular-nums}
.ch-item h3{font-size:1.08rem}
.ch-item p{margin-top:3px;color:var(--muted);font-size:.86rem;line-height:1.6}
.ch-arrow{margin-left:auto;flex:none;color:var(--brand);font-weight:800}

/* rank */
.rank-grid{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(5,auto);grid-auto-flow:column;gap:0 44px}
.rank-item{display:flex;align-items:center;gap:14px;padding:15px 4px;border-bottom:1px solid var(--line);min-height:44px}
.rank-no{flex:none;width:44px;font-size:1.5rem;font-weight:800;color:#C9A98A;font-variant-numeric:tabular-nums}
.rank-grid li:nth-child(-n+3) .rank-no{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.rank-item h3{font-size:1rem;font-weight:700}
.rank-plays{margin-left:auto;color:var(--muted);font-size:.82rem;font-variant-numeric:tabular-nums;flex:none}

/* matrix */
.matrix{display:grid;grid-template-columns:5fr 7fr;gap:24px}
.matrix-left{display:grid;gap:24px}
.matrix-right{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.m-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s,border-color .2s}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#E2B27E}
.m-no{font-size:.86rem;font-weight:800;letter-spacing:1px;color:#C9A98A}
.m-card h3{margin-top:6px;font-size:1.15rem;font-weight:700}
.m-card p{margin-top:8px;color:var(--muted);font-size:.88rem;line-height:1.65}
.chip{display:inline-flex;margin-top:14px;padding:2px 12px;border-radius:999px;background:var(--badge);color:var(--brand);font-size:12px;font-weight:700}

/* compare */
.compare{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:start}
.pl-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.pl-card + .pl-card{margin-top:20px}
.pl-card h3{font-size:1.08rem;font-weight:700}
.pl-card p{margin-top:6px;color:var(--muted);font-size:.86rem;line-height:1.6}
.pl-card ul{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.pl-card li{padding:2px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:.8rem;color:var(--muted)}
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow)}
.cmp-table{width:100%;border-collapse:collapse;background:var(--surface);font-size:.9rem;min-width:420px}
.cmp-table th,.cmp-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line)}
.cmp-table thead th{background:#FDF1E1;color:var(--brand);font-weight:700}
.cmp-table tbody tr:last-child td,.cmp-table tbody tr:last-child th{border-bottom:none}
.cmp-table tbody th{font-weight:600;color:var(--ink);white-space:nowrap}
.cmp-table td{color:var(--muted)}

/* timeline */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:10px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:56%;height:2px;background:var(--grad);opacity:.32}
.tl-item{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.tl-item:nth-child(even){margin-top:64px}
.tl-item::before{content:"";position:absolute;left:22px;top:-7px;width:12px;height:12px;border-radius:50%;background:var(--grad);border:3px solid var(--bg)}
.tl-date{font-size:.85rem;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.tl-item h3{margin-top:4px;font-size:1.04rem;font-weight:700}
.tl-item p{margin-top:6px;color:var(--muted);font-size:.85rem;line-height:1.6}

/* news */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}
.news-item{display:grid;grid-template-columns:124px 1fr;gap:16px;padding:14px;background:var(--surface);border:1px solid var(--line);border-radius:18px;transition:transform .2s,box-shadow .2s,border-color .2s}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#E2B27E}
.news-item img{aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.news-item h3{font-size:.98rem;font-weight:700;line-height:1.45}
.news-item p{margin-top:4px;color:var(--muted);font-size:.84rem;line-height:1.6}
.news-date{display:block;margin-top:6px;color:#A08D79;font-size:.78rem;font-variant-numeric:tabular-nums}

/* guard */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.guard-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.guard-item svg{width:26px;height:26px;stroke:var(--brand);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.guard-item h3{margin-top:12px;font-size:1rem;font-weight:700}
.guard-item p{margin-top:6px;color:var(--muted);font-size:.85rem;line-height:1.6}

/* quick */
.quick{display:grid;grid-template-columns:1fr 1fr;gap:8px 44px}
.quick > div{padding:16px 0;border-bottom:1px dashed var(--line)}
.quick dt{font-weight:700;font-size:.98rem}
.quick dd{margin:6px 0 0;color:var(--muted);font-size:.9rem}

/* faq */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.faq-grid details{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:16px 20px;transition:border-color .2s,box-shadow .2s}
.faq-grid details[open]{border-color:#E2B27E;box-shadow:var(--shadow)}
.faq-grid summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;font-weight:700;font-size:.98rem;cursor:pointer;list-style:none}
.faq-grid summary::-webkit-details-marker{display:none}
.faq-grid summary::after{content:"+";flex:none;color:var(--brand);font-weight:800;font-size:1.2rem}
.faq-grid details[open] summary::after{content:"−"}
.faq-grid details p{margin-top:8px;color:var(--muted);font-size:.9rem;line-height:1.7}

/* subscribe */
.subscribe{background:linear-gradient(180deg,rgba(255,248,238,.95),rgba(255,248,238,.99)),url("/assets/images/791ca5be2bf4cf32.jpg") center/cover no-repeat}
.sub-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.sub-tags{margin-top:22px}
.sub-tags li{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;color:var(--muted);font-size:.92rem}
.sub-tags li::before{content:"";flex:none;width:8px;height:8px;margin-top:9px;border-radius:50%;background:var(--grad)}
.form-card{background:var(--surface);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow);border:2px solid transparent;background-image:linear-gradient(var(--surface),var(--surface)),var(--grad);background-origin:border-box;background-clip:padding-box,border-box}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;margin-bottom:6px;font-size:.86rem;font-weight:700}
input[type="text"],input[type="email"],select{width:100%;min-height:46px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);color:var(--ink);font:inherit;font-size:.92rem}
input[type="text"]:focus,input[type="email"]:focus,select:focus{border-color:var(--brand-2);outline:none;box-shadow:0 0 0 3px rgba(217,108,30,.16)}
.check-row{display:flex;flex-wrap:wrap;gap:6px 18px}
.check-row label{display:inline-flex;align-items:center;gap:6px;min-height:44px;margin:0;font-weight:500;font-size:.9rem;color:var(--ink)}
.check-row input{width:16px;height:16px;accent-color:var(--brand)}
.form-card .btn{width:100%}
.fine{margin-top:12px;color:var(--muted);font-size:.78rem}
.form-ok{display:none;margin-top:14px;padding:12px 16px;border-radius:12px;background:#E3F4F2;color:#1D7B76;font-size:.88rem;font-weight:700}
.form-ok.show{display:block}

/* footer */
.site-footer{position:relative;background:#2A1A12;color:#F3E6D8;padding:56px 0 26px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.f-title{margin-bottom:12px;font-size:.95rem;font-weight:700;color:#fff}
.f-brand p{margin-top:12px;max-width:30em;color:#BFA98F;font-size:.88rem;line-height:1.7}
.site-footer a{display:inline-flex;align-items:center;min-height:36px;color:#D9C6B3;font-size:.9rem;transition:color .2s}
.site-footer a:hover{color:#fff}
.f-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#A08D79;font-size:.82rem}

@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero{padding:48px 0 60px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .hot-grid{grid-template-columns:repeat(2,1fr)}
  .feat{grid-column:span 2;grid-row:auto}
  .feat .thumb img{aspect-ratio:16/9}
  .latest-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .sub-grid{grid-template-columns:1fr;gap:28px}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .timeline::before{display:none}
  .tl-item:nth-child(even){margin-top:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .f-brand{grid-column:span 2}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .nav{height:64px;gap:12px}
  .menu-btn{display:inline-flex}
  .nav-links{position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;align-items:stretch;gap:2px;padding:12px 24px 18px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 18px 30px rgba(80,45,20,.1)}
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 10px;width:100%}
  .nav-links a.nav-cta{margin:10px 0 0;justify-content:center;width:100%}
  .ch-list{grid-template-columns:1fr}
  .rank-grid{grid-template-columns:1fr;grid-template-rows:none;grid-auto-flow:row}
  .news-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .quick{grid-template-columns:1fr}
  .matrix-right{grid-template-columns:1fr}
  .badge-row{position:static;margin-top:2px}
  .hero-art{padding-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .f-brand{grid-column:auto}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hot-grid{grid-template-columns:1fr}
  .feat{grid-column:span 1}
  .latest-grid{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:1fr}
  .news-item{grid-template-columns:96px 1fr;gap:12px}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .sec-head{margin-bottom:24px}
  .stat-num{font-size:1.6rem}
}