/* roulang page: index */
:root{
  --ink:#18232d;--muted:#687581;--paper:#f6f7f4;--white:#fff;
  --line:#dfe5e2;--accent:#c8563d;--accent-dark:#9f3828;--teal:#287b77;
  --soft:#e8efec;--dark:#17252a;--radius:14px;--shadow:0 16px 38px rgba(25,42,43,.09);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(246,247,244,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.navbar{height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;white-space:nowrap}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:18px}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-links a{font-size:14px;color:var(--muted);transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--accent-dark)}
.nav-action{padding:9px 16px;border:1px solid var(--accent);border-radius:9px;color:var(--accent-dark)!important}
.menu-toggle{display:none;border:0;background:none;font-size:24px;color:var(--ink)}
.hero{min-height:590px;position:relative;display:flex;align-items:center;color:#fff;background:linear-gradient(90deg,rgba(17,31,35,.9),rgba(17,31,35,.48)),url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1800&q=85") center/cover}
.hero:after{content:"";position:absolute;inset:auto 0 0;height:90px;background:linear-gradient(transparent,var(--paper))}
.hero-content{position:relative;z-index:1;max-width:700px;padding:80px 0}
.hero-kicker{display:inline-flex;gap:8px;align-items:center;color:#f1c3a9;font-size:13px;letter-spacing:1px;margin-bottom:18px}
.hero-kicker:before{content:"";width:26px;height:1px;background:#f1c3a9}
h1{font-size:clamp(36px,5vw,66px);line-height:1.15;letter-spacing:0;font-weight:800;margin-bottom:20px}
h1 em{font-style:normal;color:#ef9e78}
.hero-copy{font-size:17px;line-height:1.9;color:#e7eeee;max-width:650px;margin-bottom:30px}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 21px;border-radius:9px;border:1px solid transparent;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-light{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.08)}
.btn-light:hover{background:#fff;color:var(--ink)}
.section{padding:86px 0}
.section.alt{background:#edf2ef}
.section.dark{background:var(--dark);color:#fff}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
.eyebrow{font-size:12px;letter-spacing:2px;color:var(--accent);font-weight:800;text-transform:uppercase;margin-bottom:8px}
h2{font-size:32px;line-height:1.25;letter-spacing:0}
.section-intro{max-width:620px;color:var(--muted);font-size:15px}
.dark .section-intro{color:#b8c7c7}
.text-link{color:var(--accent-dark);font-weight:700;font-size:14px;white-space:nowrap}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{padding:25px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(30,45,43,.04)}
.feature-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:11px;background:var(--soft);color:var(--teal);font-weight:800;margin-bottom:17px}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{font-size:14px;color:var(--muted)}
.media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.media-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
.media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.media-image{aspect-ratio:4/5;position:relative;background:#ccd5d1}
.media-image img{height:100%}
.badge{position:absolute;top:11px;left:11px;background:rgba(23,37,42,.85);color:#fff;border-radius:5px;padding:3px 8px;font-size:11px}
.media-info{padding:15px}
.media-info h3{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:7px}
.meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
.score{color:var(--accent-dark);font-weight:800}
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.matrix-item{min-height:150px;padding:22px;border-radius:12px;background:#fff;border:1px solid var(--line);transition:.2s}
.matrix-item:hover{border-color:var(--accent);background:#fffaf8}
.matrix-item strong{display:block;font-size:18px;margin-bottom:8px}
.matrix-item span{display:block;color:var(--muted);font-size:13px}
.update-band{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.update-copy{padding:34px;border-radius:var(--radius);background:#f4e7df;border-left:4px solid var(--accent)}
.update-copy h3{font-size:24px;margin-bottom:9px}
.update-copy p{color:#6d625b;font-size:14px}
.timeline{display:grid;gap:12px}
.timeline-item{display:flex;align-items:center;gap:15px;padding:13px 16px;background:#fff;border:1px solid var(--line);border-radius:10px}
.timeline-date{color:var(--accent-dark);font-weight:800;font-size:13px;min-width:65px}
.timeline-item span{font-size:14px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{display:grid;grid-template-columns:112px 1fr;gap:15px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:12px}
.news-card img{height:86px;border-radius:8px}
.news-card h3{font-size:15px;line-height:1.45;margin-bottom:7px}
.news-card time{font-size:12px;color:var(--muted)}
.rank-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.rank-row{display:grid;grid-template-columns:38px 1fr auto auto;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}
.rank-row:last-child{border-bottom:0}
.rank-no{font-size:20px;font-weight:800;color:#9caaa6}
.rank-row:nth-child(-n+3) .rank-no{color:var(--accent)}
.rank-title{font-weight:700;font-size:14px}
.rank-type{font-size:11px;color:var(--teal);background:var(--soft);padding:3px 7px;border-radius:4px}
.rank-hot{font-size:12px;color:var(--muted)}
.quote{padding:34px;background:#23383a;color:#e9f0ed;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:center}
.quote p{font-size:20px;line-height:1.7;margin-bottom:20px}
.quote small{color:#adc0bc}
.faq{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:21px}
.faq-item h3{font-size:16px;margin-bottom:8px}
.faq-item p{font-size:14px;color:var(--muted)}
.final-cta{padding:48px 0;background:var(--accent-dark);color:#fff}
.final-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.final-inner h2{font-size:29px;margin-bottom:8px}
.final-inner p{color:#f1d2c8;font-size:14px}
.final-inner .btn{background:#fff;color:var(--accent-dark)}
.site-footer{background:#142326;color:#bdcbc8;padding:54px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:32px;margin-bottom:42px}
.footer-brand{color:#fff;font-size:18px;font-weight:800;margin-bottom:12px}
.footer-grid p{font-size:13px;color:#8fa4a0;max-width:300px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:13px}
.footer-col a{display:block;color:#8fa4a0;font-size:13px;margin:7px 0;transition:.2s}
.footer-col a:hover{color:#fff}
.copyright{padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#778c88}
@media(max-width:1024px){
  .media-grid{grid-template-columns:repeat(3,1fr)}
  .matrix{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:768px){
  .container{width:min(100% - 30px,600px)}
  .navbar{height:68px}
  .menu-toggle{display:block;margin-left:auto}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:15px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 15px}
  .hero{min-height:570px}
  .hero-content{padding:70px 0}
  .section{padding:62px 0}
  .section-head{display:block}
  .section-head .text-link{display:inline-block;margin-top:12px}
  .feature-grid,.news-grid,.rank-layout{grid-template-columns:1fr}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .update-band{grid-template-columns:1fr}
  .final-inner{display:block}
  .final-inner .btn{margin-top:20px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
  h1{font-size:38px}
  h2{font-size:27px}
  .hero-copy{font-size:15px}
  .media-grid{gap:11px}
  .media-info{padding:11px}
  .matrix{grid-template-columns:1fr 1fr;gap:10px}
  .matrix-item{min-height:136px;padding:16px}
  .matrix-item strong{font-size:16px}
  .news-card{grid-template-columns:92px 1fr;gap:11px}
  .news-card img{height:76px}
  .rank-row{grid-template-columns:30px 1fr auto;gap:8px}
  .rank-hot{display:none}
  .footer-grid{grid-template-columns:1fr}
}