/* roulang page: index */
:root{
  --brand:#E8623C;
  --brand-dark:#C24A29;
  --plum:#6E4B8E;
  --butter:#F5C64C;
  --bg:#FFF7F1;
  --surface:#FFFFFF;
  --line:#EFE2D9;
  --ink:#26201D;
  --muted:#6B5F59;
  --footer:#2A211D;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow:0 1px 2px rgba(38,32,29,.06),0 10px 24px -14px rgba(200,90,50,.28);
  --shadow-hover:0 2px 4px rgba(38,32,29,.08),0 18px 32px -16px rgba(200,90,50,.44);
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:15px;line-height:1.7;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:56px 0;scroll-margin-top:120px}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:28px}
.sec-head h2{font-size:26px;font-weight:700;line-height:1.35}
.sec-head p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.8}
.hl{background:linear-gradient(transparent 62%,var(--butter) 62%);padding:0 2px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:#FFEFE8;color:var(--brand-dark);font-size:13px;font-weight:600}
.tag{display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--r-pill);background:#F4EDF8;color:var(--plum);font-size:12px;font-weight:600;white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px -12px rgba(232,98,60,.95)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(194,74,41,.9)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:#FFF0E9}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,247,241,.94);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.site-header.is-compact{border-bottom-color:var(--line);box-shadow:0 8px 20px -16px rgba(38,32,29,.6)}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;transition:height .25s ease}
.is-compact .brand-row{height:56px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:800}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.02em}
.brand-actions{display:flex;align-items:center;gap:12px}
.search input{width:220px;height:38px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;font-size:14px;color:var(--ink)}
.search input::placeholder{color:#a99b94}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.channel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px;max-height:48px;overflow:hidden;transition:max-height .25s ease,opacity .2s ease}
.is-compact .channel-row{max-height:0;opacity:0}
.channels{display:flex;align-items:center;gap:26px}
.channels a{font-size:14.5px;font-weight:600;color:var(--muted);padding:4px 0;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease}
.channels a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.channels a.active{color:var(--brand-dark);border-bottom-color:var(--brand)}
.all-cats{font-size:13.5px;font-weight:600;color:var(--plum);background:#F4EDF8;padding:5px 14px;border-radius:var(--r-pill)}
.all-cats:hover{background:#EADFF2}
.mobile-panel{display:none;background:#fff;border-top:1px solid var(--line);padding:8px 0 14px}
.mobile-panel.open{display:block}
.mobile-panel a{display:block;padding:12px 24px;font-size:15px;font-weight:600}
.mobile-panel a:hover{background:#FFF3EC}

/* hero */
.hero{position:relative;padding:48px 0 56px;background:linear-gradient(rgba(255,247,241,.93),rgba(255,247,241,.97)),url(/assets/images/8b56e06d58cfb1be.jpg) center/cover no-repeat;scroll-margin-top:120px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.hero h1{font-size:38px;line-height:1.26;font-weight:800;margin:16px 0 14px}
.hero-lead{font-size:17px;font-weight:600;color:var(--brand-dark)}
.hero-text{margin-top:12px;font-size:15px;line-height:1.85;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-form{display:flex;gap:10px;margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow)}
.hero-form input{flex:1;min-width:0;min-height:40px;border:0;padding:0 8px;background:transparent;font-size:14px;color:var(--ink)}
.hero-form input:focus{outline:none}
.hero-note{margin-top:10px;font-size:12.5px;color:#9A8C85}
.hero-collage{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
.collage-item{position:relative;overflow:hidden;border-radius:14px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
.collage-item img{width:100%;height:100%;object-fit:cover}
.collage-tall{grid-row:span 2}
.collage-tall img{min-height:280px}
.collage-small img{height:132px}
.collage-tag{position:absolute;left:10px;bottom:10px;background:rgba(255,255,255,.94);color:var(--brand-dark);font-size:12px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill)}

/* pain */
.pain-list li{display:grid;grid-template-columns:44px 1fr auto;gap:16px;align-items:start;padding:20px 0;border-top:1px solid var(--line)}
.pain-list li:last-child{border-bottom:1px solid var(--line)}
.pain-no{font-size:15px;font-weight:800;color:var(--plum);font-variant-numeric:tabular-nums}
.pain-list h3{font-size:16px;font-weight:700}
.pain-list p{margin-top:5px;font-size:14.5px;color:var(--muted)}

/* matrix */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.matrix-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.matrix-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(232,98,60,.3)}
.matrix-icon{width:44px;height:44px;border-radius:12px;background:#FFEFE8;display:grid;place-items:center;font-size:20px;margin-bottom:14px}
.matrix-card h3{font-size:16px;font-weight:700}
.matrix-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}

/* video cards */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.vcard{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.vcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(232,98,60,.3)}
.vcard-cover{position:relative;background:#F6EBE3}
.vcard-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.duration{position:absolute;right:8px;bottom:8px;background:rgba(38,32,29,.74);color:#fff;font-size:12px;padding:1px 8px;border-radius:6px;font-variant-numeric:tabular-nums}
.sticky-badge{position:absolute;left:8px;top:8px;background:var(--brand);color:#fff;font-size:11.5px;font-weight:700;letter-spacing:.04em;padding:2px 9px;border-radius:var(--r-pill)}
.sticky-badge.gold{background:var(--plum)}
.vcard-body{padding:12px 14px 14px}
.vcard-body h3{font-size:16px;font-weight:600;line-height:1.45;min-height:46px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vcard-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}

/* latest */
.latest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.latest-item{display:grid;grid-template-columns:98px 1fr;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:10px;box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.latest-item:hover{transform:translateY(-2px);border-color:rgba(232,98,60,.3)}
.latest-item img{width:98px;height:74px;object-fit:cover;border-radius:10px}
.latest-item h3{font-size:14.5px;font-weight:600;line-height:1.45}
.latest-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:6px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* channels */
.channel-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.channel-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.channel-card:hover{transform:translateY(-2px);border-color:rgba(232,98,60,.3)}
.channel-card h3{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700}
.channel-card h3::before{content:"";width:6px;height:17px;border-radius:3px;background:var(--plum)}
.channel-card p{margin-top:8px;font-size:13.5px;line-height:1.72;color:var(--muted)}
.channel-stat{margin-top:12px;font-size:12.5px;font-weight:600;color:var(--brand-dark);font-variant-numeric:tabular-nums}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{padding-top:20px;border-top:2px dashed var(--line)}
.step-no{font-size:34px;font-weight:800;line-height:1;color:var(--plum);opacity:.38;font-variant-numeric:tabular-nums}
.step h3{margin-top:10px;font-size:16px;font-weight:700}
.step p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted)}

/* rank */
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow)}
.rank-list li{display:grid;grid-template-columns:48px 1fr auto auto;gap:14px;align-items:center;padding:13px 18px;border-bottom:1px solid var(--line);font-size:14.5px}
.rank-list li:nth-child(odd){background:#FFFBF8}
.rank-list li:last-child{border-bottom:0}
.rank-no{font-size:16px;font-weight:800;color:#C3B4AC;font-variant-numeric:tabular-nums}
.rank-list li:nth-child(-n+3) .rank-no{font-size:22px;color:var(--brand)}
.rank-title{font-weight:600}
.rank-plays{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--line)}
.stat{padding:24px 20px 0 0}
.stat+.stat{padding-left:20px;border-left:1px solid var(--line)}
.stat-num{font-size:40px;font-weight:800;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-label{margin-top:8px;font-size:15px;font-weight:700}
.stat p{margin-top:4px;font-size:13.5px;color:var(--muted)}

/* voices */
.quotes{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow)}
.quote-top{display:flex;align-items:center;gap:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:#FFEFE8;color:var(--brand-dark);display:grid;place-items:center;font-size:14px;font-weight:700}
.quote-name{font-size:14px;font-weight:600}
.quote-time{font-size:12px;color:var(--muted)}
.quote p{margin-top:12px;font-size:14px;line-height:1.7}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.scene{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px}
.scene-ico{font-size:20px;line-height:1.4}
.scene h3{font-size:15px;font-weight:700}
.scene p{margin-top:4px;font-size:13.5px;color:var(--muted)}

/* topics */
.topic-list{display:grid;gap:16px}
.topic{display:grid;grid-template-columns:190px 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease}
.topic:hover{transform:translateY(-2px);border-color:rgba(232,98,60,.3)}
.topic img{width:100%;height:100%;min-height:132px;object-fit:cover}
.topic-body{padding:18px 22px 18px 20px}
.topic-body h3{font-size:17px;font-weight:700}
.topic-body p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted)}
.topic-meta{margin-top:10px;font-size:12.5px;font-weight:600;color:var(--brand-dark);font-variant-numeric:tabular-nums}

/* news */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.news{display:grid;grid-template-columns:124px 1fr;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:12px;transition:border-color .2s ease}
.news:hover{border-color:rgba(232,98,60,.3)}
.news img{width:124px;height:93px;object-fit:cover;border-radius:10px}
.news h3{font-size:14.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news time{display:block;margin-top:6px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

/* metrics */
.metrics-bar{display:flex;flex-wrap:wrap;gap:10px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 22px;box-shadow:var(--shadow)}
.metrics-bar span{font-size:13.5px;color:var(--muted)}
.metrics-bar strong{color:var(--ink);font-weight:700}
.metrics-bar span+span{padding-left:16px;border-left:1px solid var(--line)}

/* faq */
.faq{max-width:900px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:0 18px;margin-bottom:12px;box-shadow:var(--shadow)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0;font-size:15.5px;font-weight:600;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:700;color:var(--brand);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 18px;font-size:14.5px;line-height:1.8;color:var(--muted)}

/* cta */
.cta-band{padding:56px 0;background:linear-gradient(135deg,#FFECE1,#FBE7F0);border-top:1px solid var(--line);scroll-margin-top:120px}
.cta-inner{max-width:780px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:28px;font-weight:800;line-height:1.35}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:24px}
.cta-note{margin-top:14px;font-size:13px;color:#8C7D75}

/* footer */
.site-footer{background:var(--footer);color:#E8DCD4;padding:44px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.foot-brand .brand-name{color:#fff}
.foot-brand p{margin-top:12px;font-size:13.5px;line-height:1.9;color:#BFAFA6;max-width:320px}
.site-footer h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px}
.site-footer li{font-size:13.5px;line-height:2;color:#BFAFA6}
.site-footer a{color:#BFAFA6;transition:color .18s ease}
.site-footer a:hover{color:#fff}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:32px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#9E8E85}

@media (max-width:1024px){
  .container{padding:0 20px}
  .sear${""}ch input{width:170px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .channel-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:repeat(2,1fr)}
  .latest-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{padding:20px 16px 0 0}
  .stat+.stat{padding-left:16px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .topic{grid-template-columns:150px 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .search{display:none}
  .channel-row{display:none}
  .menu-toggle{display:flex}
  .section{padding:40px 0}
  .sec-head h2{font-size:22px}
  .hero{padding:36px 0 44px}
  .hero h1{font-size:30px}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .latest-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .topic{grid-template-columns:120px 1fr}
  .rank-list li{grid-template-columns:34px 1fr auto;gap:10px;padding:12px 14px}
  .rank-list .tag{display:none}
  .stat-num{font-size:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:22px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-name{font-size:16px}
  .hero-collage{grid-template-columns:1fr}
  .collage-tall{grid-row:auto}
  .collage-tall img{min-height:190px}
  .collage-small img{height:150px}
  .hero h1{font-size:26px}
  .hero-lead{font-size:15.5px}
  .hero-form{flex-direction:column}
  .matrix{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .stat{padding:16px 0 0}
  .stat+.stat{padding-left:0;border-left:0;border-top:1px solid var(--line);margin-top:16px}
  .stat:nth-child(3){padding-left:0}
  .latest-item{grid-template-columns:86px 1fr}
  .latest-item img{width:86px;height:66px}
  .news{grid-template-columns:96px 1fr}
  .news img{width:96px;height:72px}
  .topic{grid-template-columns:1fr}
  .topic img{height:160px;min-height:160px}
  .topic-body{padding:14px 18px 18px}
  .pain-list li{grid-template-columns:34px 1fr;gap:12px}
  .pain-list .tag{display:none}
  .metrics-bar{flex-direction:column;gap:8px}
  .metrics-bar span+span{padding-left:0;border-left:0}
  .cta-inner h2{font-size:22px}
  .foot-grid{grid-template-columns:1fr}
}