/* roulang page: index */
:root{
  --brand:#E4572E;--brand-deep:#C23B1C;--accent:#1F6E5C;--gold:#F5B33C;
  --bg:#FBF6EF;--surface:#FFFFFF;--ink:#1F1B16;--muted:#6B6259;--line:#EADFD2;
  --r:18px;--r-img:14px;
  --shadow:0 6px 20px rgba(196,120,80,.08);
  --shadow-lg:0 12px 28px rgba(196,120,80,.16);
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;letter-spacing:-.01em;line-height:1.3}
h1{font-size:44px;font-weight:800;line-height:1.2}
h2{font-size:28px;font-weight:700;line-height:1.36}
h3{font-size:20px;font-weight:600;line-height:1.5}
p{margin:1em 0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
section{padding:80px 0}
.alt{background:#F5EDE3}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-head p{margin:8px 0 0;color:var(--muted);font-size:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .2s,box-shadow .2s,transform .15s,color .2s}
.btn-main{background:var(--brand);color:#fff}
.btn-main:hover{background:var(--brand-deep);box-shadow:inset 0 0 0 1px rgba(0,0,0,.06),0 8px 18px rgba(196,120,80,.24)}
.btn-main:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-ghost:hover{background:var(--accent);color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* 悬浮胶囊导航 */
.nav-fix{position:fixed;top:16px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 16px;pointer-events:none}
.nav{pointer-events:auto;display:flex;align-items:center;gap:6px;max-width:100%;padding:8px 10px;border-radius:999px;background:rgba(255,255,255,.84);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:0 8px 22px rgba(196,120,80,.14);transition:.25s}
.logo{display:flex;align-items:center;gap:9px;padding:2px 10px 2px 2px;font-weight:800;font-size:15px;white-space:nowrap}
.logo i{width:32px;height:32px;border-radius:10px;background:var(--brand);display:grid;place-items:center;color:#fff;font-style:normal;font-size:13px;font-weight:800}
.nav-links{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav-links::-webkit-scrollbar{display:none}
.nav-links a{padding:8px 12px;border-radius:999px;font-size:14px;color:var(--muted);white-space:nowrap;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--brand);background:rgba(228,87,46,.09)}

/* Hero */
.hero{padding:136px 0 64px;background:radial-gradient(120% 92% at 88% 0%,#FDEBE1 0%,var(--bg) 58%)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:center}
.hero h1 em{font-style:normal;color:var(--brand);box-shadow:inset 0 -8px 0 rgba(228,87,46,.18)}
.hero .sub{font-size:17px;color:var(--muted);margin:16px 0 0;max-width:520px}
.hero .lead{font-size:16px;color:#3D362F;max-width:560px}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;max-width:520px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 14px}
.kpi b{display:block;font-size:22px;line-height:1.3;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.kpi span{font-size:12px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r);box-shadow:var(--shadow-lg)}
.hero-badge{position:absolute;top:-13px;left:18px;background:var(--gold);color:#4A3208;font-size:13px;font-weight:700;padding:6px 15px;border-radius:999px;box-shadow:var(--shadow)}

/* 速览条 */
.strip{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;box-shadow:var(--shadow);display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.strip li b{display:block;font-size:28px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.strip li b i{font-style:normal;font-size:15px;color:var(--muted);font-weight:600;margin-left:2px}
.strip li span{font-size:13px;color:var(--muted)}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.chip{display:inline-flex;align-items:center;min-height:38px;padding:0 18px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--muted);transition:.2s}
.chip:hover{border-color:var(--brand);color:var(--brand)}

/* 卡片网格 */
.grid-12{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.thumb{position:relative;overflow:hidden;aspect-ratio:16/9;background:#EFE6DA}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.card:hover .thumb img{transform:scale(1.03)}
.badge{position:absolute;top:10px;left:10px;font-size:12px;font-weight:700;padding:2px 9px;border-radius:6px;line-height:1.7}
.badge-orig{background:var(--gold);color:#4A3208}
.badge-hd{background:rgba(255,255,255,.94);color:var(--accent);border:1px solid var(--accent)}
.badge-plain{background:rgba(31,27,22,.66);color:#fff}
.card-body{padding:12px 14px 16px}
.card-body h3{font-size:15px;font-weight:600;line-height:1.5}
.card:hover .card-body h3{color:var(--brand)}
.meta{font-size:13px;color:var(--muted);margin:5px 0 0;display:flex;gap:10px;flex-wrap:wrap}
.meta span{position:relative}
.meta span+span::before{content:"·";margin-right:10px;color:var(--line)}

/* 功能分组 左大右小 */
.feature{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch}
.feature-big{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.feature-big img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-big div{padding:22px 24px 26px}
.feature-big h3{margin-bottom:6px}
.feature-big p{color:var(--muted);font-size:15px;margin:0}
.feature-list{display:grid;gap:12px}
.fitem{display:flex;gap:14px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:.2s}
.fitem:hover{border-color:#F0C9B6;box-shadow:var(--shadow)}
.fitem i{flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:rgba(228,87,46,.1);color:var(--brand);display:grid;place-items:center;font-style:normal;font-weight:800;font-size:15px}
.fitem b{display:block;font-size:15px}
.fitem p{margin:2px 0 0;font-size:13px;color:var(--muted);line-height:1.7}

/* 使用场景 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{border-left:2px solid var(--line);padding-left:18px}
.step b{display:block;font-size:30px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1}
.step h3{font-size:16px;margin:8px 0 4px}
.step p{margin:0;font-size:13px;color:var(--muted);line-height:1.7}

/* 播放器演示 */
.player-demo{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg)}
.player-demo img{width:100%;aspect-ratio:16/9;object-fit:cover}
.pin{position:absolute;font-size:13px;background:rgba(255,255,255,.95);border:1px solid var(--line);color:var(--ink);padding:4px 13px;border-radius:999px;box-shadow:var(--shadow);white-space:nowrap}
.pin::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-right:7px;vertical-align:middle}
.pin1{top:11%;right:7%}
.pin2{top:43%;left:6%}
.pin3{bottom:11%;left:36%}

/* 分类频道 */
.chan{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
.chan a{display:grid;grid-template-columns:200px 1fr auto;gap:24px;align-items:center;padding:22px 26px;border-bottom:1px solid var(--line);transition:background .2s}
.chan a:last-child{border-bottom:0}
.chan a:nth-child(odd){background:rgba(251,246,239,.75)}
.chan a:hover{background:#fff}
.chan strong{font-size:17px}
.chan p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
.chan em{font-style:normal;font-size:13px;color:var(--brand);font-weight:600;white-space:nowrap}

/* 播放榜 */
.rank li{display:grid;grid-template-columns:60px 1fr 120px 100px;gap:16px;align-items:center;padding:15px 0;border-bottom:1px solid var(--line)}
.rank .no{font-size:26px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.rank .t{font-size:15px}
.rank .pv{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.rank .cat{font-size:12px;color:var(--accent);background:rgba(31,110,92,.1);padding:3px 10px;border-radius:6px;text-align:center;justify-self:end}

/* 专题 */
.rails{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.rail{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s}
.rail:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.rail img{width:100%;aspect-ratio:21/9;object-fit:cover}
.rail div{background:var(--surface);padding:14px 16px 18px;border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r) var(--r)}
.rail h3{font-size:16px}
.rail p{margin:4px 0 0;font-size:13px;color:var(--muted)}

/* 观看者故事 */
.story{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;margin-bottom:36px}
.story:last-child{margin-bottom:0}
.story.rev .story-img{order:2}
.story-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r);box-shadow:var(--shadow)}
.story h3{margin-bottom:6px}
.story p{color:var(--muted);font-size:15px;margin:0 0 10px}
.story a{color:var(--brand);font-size:14px;font-weight:600}
.story a:hover{color:var(--brand-deep);text-decoration:underline}

/* 观看方案 */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;box-shadow:var(--shadow)}
.plan.pick{border:2px solid var(--brand);box-shadow:var(--shadow-lg);padding:32px 28px}
.plan .tag{position:absolute;top:-13px;left:24px;background:var(--brand);color:#fff;font-size:12px;font-weight:700;padding:3px 13px;border-radius:999px}
.plan h3{font-size:18px}
.price{font-size:38px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.15;margin-top:8px}
.price small{font-size:14px;font-weight:500;color:var(--muted)}
.plan ul{margin:16px 0 22px}
.plan ul li{font-size:14px;color:var(--muted);padding:6px 0;border-bottom:1px dashed var(--line)}
.plan ul li:last-child{border-bottom:0}
.plan .btn{width:100%}

/* 评价墙 */
.wall{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.wall li{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--shadow)}
.wall li:nth-child(even){transform:translateY(16px)}
.stars{color:var(--gold);font-size:15px;letter-spacing:2px}
.wall p{margin:6px 0 14px;font-size:15px;color:#3D362F}
.who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.who img{width:36px;height:36px;border-radius:50%;object-fit:cover}

/* 口碑数据 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stats li{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;box-shadow:var(--shadow)}
.stats b{display:block;font-size:32px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stats span{font-size:13px;color:var(--muted)}
.src{margin:18px 0 0;font-size:13px;color:var(--muted)}

/* 资讯 */
.news{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px}
.news li{display:grid;grid-template-columns:64px 1fr;gap:14px;align-items:center;padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:14px;transition:.2s}
.news li:hover{border-color:#F0C9B6}
.news img{width:64px;height:64px;object-fit:cover;border-radius:10px}
.news h3{font-size:15px;font-weight:600;line-height:1.5}
.news time{font-size:12px;color:var(--muted)}

/* FAQ */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0 20px;margin-bottom:12px}
.faq summary{list-style:none;cursor:pointer;padding:16px 0;font-weight:600;font-size:15px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:0 0 11px;width:11px;height:11px;border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(-135deg)}
.faq p{margin:0 0 18px;color:var(--muted);font-size:15px;line-height:1.85}

/* CTA */
.cta{background:var(--accent);color:#FBF6EF;border-radius:24px;padding:56px 40px;text-align:center}
.cta h2{color:#fff;margin-bottom:8px}
.cta p{margin:0 auto;max-width:560px;color:rgba(251,246,239,.85);font-size:15px}
.cta .btn-main{margin-top:24px;background:var(--brand)}
.cta .lnk{display:inline-block;margin-top:16px;font-size:14px;color:rgba(251,246,239,.85);border-bottom:1px solid rgba(251,246,239,.4)}
.cta .lnk:hover{color:var(--gold);border-color:var(--gold)}

/* 页脚 */
.foot{background:var(--accent);color:#FBF6EF;padding:56px 0 24px}
.foot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.foot h3{font-size:15px;color:#fff;margin-bottom:10px}
.foot p{font-size:13px;line-height:1.8;color:rgba(251,246,239,.75);margin:0}
.foot a{display:block;padding:5px 0;font-size:14px;color:rgba(251,246,239,.8);transition:color .2s}
.foot a:hover{color:var(--gold)}
.copy{border-top:1px solid rgba(251,246,239,.22);margin-top:32px;padding-top:16px;text-align:center;font-size:12px;color:rgba(251,246,239,.65)}

@media(max-width:1024px){
  h1{font-size:36px}
  .hero{padding:126px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .grid-12{grid-template-columns:repeat(3,1fr)}
  .grid-6{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .rails{grid-template-columns:repeat(2,1fr)}
  .plans{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .story,.story.rev{grid-template-columns:1fr;gap:20px}
  .story.rev .story-img{order:0}
  .chan a{grid-template-columns:160px 1fr;row-gap:6px}
  .chan em{grid-column:2;justify-self:start}
  .foot-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  section{padding:56px 0}
  h2{font-size:24px}
  .nav{padding:6px 8px}
  .logo{font-size:14px}
  .logo i{width:28px;height:28px}
  .nav-links a{padding:7px 10px;font-size:13px}
  .rank li{grid-template-columns:44px 1fr 90px;row-gap:2px}
  .rank .cat{display:none}
  .foot-grid{grid-template-columns:1fr;gap:24px}
  .cta{padding:40px 24px}
}
@media(max-width:520px){
  body{font-size:15px}
  h1{font-size:30px;line-height:1.36}
  h2{font-size:21px}
  .wrap{padding:0 16px}
  section{padding:48px 0}
  .hero{padding:118px 0 40px}
  .hero .sub{font-size:15px}
  .kpis{grid-template-columns:repeat(2,1fr)}
  .grid-12{grid-template-columns:repeat(2,1fr);gap:16px}
  .grid-6{grid-template-columns:1fr}
  .card-body{padding:10px 12px 14px}
  .card-body h3{font-size:14px}
  .steps{grid-template-columns:1fr;gap:16px}
  .rails{grid-template-columns:1fr}
  .wall{grid-template-columns:1fr}
  .wall li:nth-child(even){transform:none}
  .news{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,1fr);padding:20px 16px;gap:16px}
  .strip li b{font-size:22px}
  .chan a{grid-template-columns:1fr;padding:18px 18px}
  .chan em{grid-column:1}
  .pin{font-size:11px;padding:3px 10px}
  .pin1{top:8%;right:5%}
  .pin2{top:auto;bottom:26%;left:5%}
  .pin3{bottom:8%;left:34%}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats li{padding:16px 12px}
  .stats b{font-size:24px}
  .rank .no{font-size:20px}
  .rank .t{font-size:14px}
  .price{font-size:32px}
  .cta{padding:34px 18px;border-radius:18px}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none!important}
}