/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --primary:#FF7A45;--primary-deep:#E45F2C;--mint:#22C7A9;--cream:#FFC94D;--purple:#6B5AE0;
  --bg:#FFF8F0;--surface:#fff;--alt:#FDF1E6;
  --ink:#241C2B;--muted:#6E6377;--line:#F0E2D4;
  --r-lg:20px;--r-sm:14px;--r-btn:12px;
  --sd:0 6px 18px rgba(36,28,43,.06);--sd-h:0 12px 28px rgba(36,28,43,.12);
}
body{margin:0;font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .16s ease}
img{display:block;max-width:100%}
h1,h2,h3,h4,p,figure{margin:0}
ul{padding:0;list-style:none}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,248,240,.95);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.2px;flex-shrink:0}
.logo-mark{width:36px;height:36px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;box-shadow:0 3px 0 var(--primary-deep)}
.main-nav{flex:1;min-width:0}
.main-nav>ul{display:flex;align-items:center;gap:4px}
.main-nav a{display:inline-block;padding:8px 14px;border-radius:10px;font-size:15px;color:var(--muted)}
.main-nav a:hover{background:rgba(255,122,69,.1);color:var(--primary-deep)}
.main-nav a.active{color:var(--primary-deep);font-weight:600;background:rgba(255,122,69,.12)}
.has-drop{position:relative}
.drop-panel{position:absolute;top:calc(100% + 8px);left:0;min-width:260px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);box-shadow:var(--sd-h);padding:8px;display:none;grid-template-columns:1fr 1fr;gap:2px}
.has-drop:hover .drop-panel,.has-drop:focus-within .drop-panel{display:grid}
.drop-panel a{padding:8px 10px;border-radius:8px;font-size:14px;color:var(--ink)}
.drop-panel a:hover{background:var(--alt);color:var(--primary-deep)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:none;cursor:pointer;transition:background .16s ease,transform .16s ease,box-shadow .16s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 3px 0 var(--primary-deep)}
.btn-primary:hover{background:var(--primary-deep)}
.btn-primary:active{transform:translateY(2px);box-shadow:0 1px 0 var(--primary-deep)}
.btn-ghost{background:#fff;color:var(--primary-deep);border:1.5px solid var(--primary)}
.btn-ghost:hover{background:rgba(255,122,69,.09)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--primary-deep);font-weight:600;font-size:15px}
.link-more i{font-style:normal;transition:transform .16s ease}
.link-more:hover i{transform:translateX(3px)}

/* section */
.section{padding:80px 0}
.section.alt{background:var(--alt)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:15px}

/* hero */
.hero{padding:64px 0 72px;background:linear-gradient(180deg,#FFF1E4 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);color:var(--primary-deep);font-size:13px;font-weight:600;padding:6px 14px;border-radius:99px;box-shadow:var(--sd)}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;margin:18px 0 14px}
.hl{color:var(--primary-deep)}
.hero-sub{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:12px}
.hero-text{font-size:16px;color:var(--muted);margin-bottom:28px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-figure{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--sd-h)}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-badge{position:absolute;right:18px;bottom:18px;width:96px;height:96px;border-radius:50%;background:var(--mint);color:#fff;display:grid;place-content:center;text-align:center;line-height:1.15;box-shadow:0 4px 0 #17a98e}
.hero-badge strong{font-size:26px;font-weight:800;display:block}
.hero-badge span{font-size:12px;opacity:.95}

/* metrics */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sd);transition:transform .16s ease,box-shadow .16s ease}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--sd-h)}
.kpi-num{font-size:46px;font-weight:800;letter-spacing:-.5px;line-height:1;color:var(--primary-deep);transition:transform .16s ease}
.kpi:hover .kpi-num{transform:translateY(-2px)}
.kpi-num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:6px;letter-spacing:0}
.kpi-label{font-size:14px;color:var(--muted);margin-top:12px}
.kpi-bar{height:8px;border-radius:99px;background:#F3E8DC;margin-top:16px;overflow:hidden}
.kpi-bar i{display:block;height:100%;border-radius:99px;background:var(--primary)}

/* cards grid */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd);transition:transform .16s ease,box-shadow .16s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--sd-h)}
.poster{aspect-ratio:2/3;background:linear-gradient(160deg,#FFE7D6,#FFF6EC);display:grid;place-items:center;overflow:hidden;color:rgba(228,95,44,.5);font-size:30px}
.card:hover .poster{transform:scale(1.03);transition:transform .3s ease}
.card-body{padding:14px 16px 18px}
.card-title{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:8px;min-height:24px}
.meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:var(--muted)}
.badge{display:inline-block;padding:2px 10px;border-radius:99px;background:var(--mint);color:#fff;font-size:12px;font-weight:600;line-height:1.7;white-space:nowrap}
.badge-bd{background:var(--purple)}
.badge-up{background:var(--primary)}
.score{color:var(--primary-deep);font-weight:700}

/* matrix */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(150px,auto);gap:24px}
.mx{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sd);display:flex;flex-direction:column;gap:10px;transition:transform .16s ease,box-shadow .16s ease;overflow:hidden}
.mx:hover{transform:translateY(-4px);box-shadow:var(--sd-h)}
.mx.big{grid-column:span 2;grid-row:span 2;justify-content:flex-end;color:#fff;background:#2b2233;border-color:#2b2233}
.mx.big img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;z-index:0}
.mx.big>*:not(img){position:relative;z-index:1}
.mx-ico{width:38px;height:38px;border-radius:12px;background:var(--alt);color:var(--primary-deep);display:grid;place-items:center;font-size:17px;font-weight:700}
.mx.big .mx-ico{background:rgba(255,255,255,.18);color:#fff}
.mx h3{font-size:18px;font-weight:700}
.mx p{font-size:14px;color:var(--muted);line-height:1.7}
.mx.big p{color:rgba(255,255,255,.82);max-width:520px}
.mx.big .link-more{color:#fff}

/* wide cards */
.wide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.wide{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sd);transition:transform .16s ease,box-shadow .16s ease}
.wide:hover{transform:translateY(-4px);box-shadow:var(--sd-h)}
.wide-cover{aspect-ratio:16/9;background:linear-gradient(140deg,#FFE9DB,#FFF4E9);display:grid;place-items:center;color:rgba(228,95,44,.5);font-size:28px}
.wide-body{padding:16px 18px 20px}
.wide-body h3{font-size:17px;font-weight:600;margin-bottom:6px}
.wide-body p{font-size:14px;color:var(--muted);margin-bottom:10px}

/* compare */
.compare{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sd)}
.cmp h3{font-size:19px;font-weight:700;margin-bottom:6px}
.cmp>p{font-size:14px;color:var(--muted);margin-bottom:18px}
.cmp li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:var(--r-sm);background:var(--alt);margin-bottom:10px;font-size:15px}
.cmp li:last-child{margin-bottom:0}
.cmp li strong{font-weight:600}
.cmp li span{font-size:13px;color:var(--muted);white-space:nowrap}
.cmp-vs{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:52px;height:52px;border-radius:50%;background:var(--cream);color:#6b4a00;display:grid;place-items:center;font-weight:800;font-size:14px;box-shadow:0 3px 0 #e0a92f;z-index:2}

/* channels */
.chan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.chan{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sd);display:flex;flex-direction:column;gap:10px;transition:transform .16s ease,box-shadow .16s ease}
.chan:hover{transform:translateY(-3px);box-shadow:var(--sd-h)}
.chan h3{font-size:17px;font-weight:700}
.chan p{font-size:14px;color:var(--muted);flex:1}

/* rank */
.rank-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}
.rank-list li{display:flex;align-items:center;gap:14px;padding:12px 14px;border-radius:var(--r-sm);transition:background .16s ease}
.rank-list li:hover{background:rgba(255,122,69,.08)}
.rk-no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;background:#F3E8DC;color:var(--muted);flex-shrink:0}
.rk-1{background:var(--primary);color:#fff}
.rk-2{background:var(--mint);color:#fff}
.rk-3{background:var(--cream);color:#6b4a00}
.rk-name{font-weight:600;font-size:16px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rk-hot{font-size:13px;color:var(--muted);white-space:nowrap}
.rk-score{font-size:14px;font-weight:700;color:var(--primary-deep);white-space:nowrap}
.rk-tag{font-size:12px;padding:1px 9px;border-radius:99px;background:var(--alt);color:var(--muted);white-space:nowrap}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative;padding-top:16px}
.timeline::before{content:"";position:absolute;left:6%;right:6%;top:30px;height:2px;background:var(--line)}
.tl{position:relative;text-align:center}
.tl-dot{width:16px;height:16px;border-radius:50%;background:var(--primary);box-shadow:0 3px 0 var(--primary-deep);margin:0 auto 18px;position:relative;z-index:1}
.tl-year{font-size:20px;font-weight:800;color:var(--primary-deep);letter-spacing:-.3px}
.tl p{font-size:14px;color:var(--muted);margin-top:6px}

/* news */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;box-shadow:var(--sd);transition:transform .16s ease,box-shadow .16s ease}
.news:hover{transform:translateY(-3px);box-shadow:var(--sd-h)}
.news-thumb{flex:0 0 132px;aspect-ratio:16/9;border-radius:10px;background:linear-gradient(140deg,#FFE9DB,#FFF4E9);display:grid;place-items:center;color:rgba(228,95,44,.45);font-size:20px;overflow:hidden}
.news-text h3{font-size:15px;font-weight:600;line-height:1.5;margin-bottom:6px}
.news-meta{font-size:13px;color:var(--muted);display:flex;gap:12px}

/* guard */
.guard-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.guard{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sd)}
.guard-ico{width:44px;height:44px;flex:0 0 44px;border-radius:14px;background:rgba(34,199,169,.14);color:#149b83;display:grid;place-items:center;font-size:18px;font-weight:700}
.guard h3{font-size:16px;font-weight:700;margin-bottom:4px}
.guard p{font-size:14px;color:var(--muted)}

/* quick */
.quick{display:flex;flex-wrap:wrap;gap:12px}
.quick a{display:inline-flex;align-items:center;min-height:44px;padding:10px 20px;border-radius:99px;background:#fff;border:1px solid var(--line);font-size:15px;color:var(--ink);box-shadow:var(--sd);transition:all .16s ease}
.quick a:hover{color:var(--primary-deep);border-color:var(--primary);transform:translateY(-2px)}

/* faq */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden}
.faq-item[open]{border-left:3px solid var(--primary)}
.faq-item summary{cursor:pointer;padding:16px 20px;font-weight:600;font-size:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--primary-deep);font-weight:700;font-size:20px;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 20px 18px;color:var(--muted);font-size:15px}

/* subscribe */
.sub-wrap{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;box-shadow:var(--sd)}
.sub-form{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:16px;align-items:end}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;color:var(--muted);font-weight:600}
.field input,.field select{height:44px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--bg);transition:border-color .16s ease,box-shadow .16s ease;min-width:0}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,122,69,.12)}
.sub-note{font-size:14px;color:var(--muted);line-height:1.7}

/* footer */
.site-footer{background:#241C2B;color:#efe7f2;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.site-footer .logo{color:#fff;margin-bottom:16px}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:14px;color:#fff}
.footer-grid p{font-size:14px;color:rgba(239,231,242,.66);line-height:1.7}
.footer-grid ul li{margin-bottom:10px}
.footer-grid ul a{font-size:14px;color:rgba(239,231,242,.66)}
.footer-grid ul a:hover{color:var(--cream)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;padding-bottom:24px}
.footer-bottom p{font-size:13px;color:rgba(239,231,242,.5)}

/* responsive */
@media (max-width:1024px){
  .section{padding:56px 0}
  .hero{padding:44px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure{order:2}
  .hero h1{font-size:36px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(3,1fr)}
  .wide-grid{grid-template-columns:repeat(2,1fr)}
  .chan-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:repeat(5,1fr);gap:16px}
  .sub-wrap{grid-template-columns:1fr;gap:24px}
  .sub-form{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-wrap{height:auto;padding:12px 0;flex-wrap:wrap}
  .main-nav{order:3;width:100%;overflow-x:auto}
  .main-nav>ul{flex-wrap:nowrap;white-space:nowrap}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .sec-head h2{font-size:26px}
  .hero h1{font-size:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .wide-grid{grid-template-columns:1fr}
  .chan-grid{grid-template-columns:1fr}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .mx.big{grid-column:span 2;grid-row:auto;min-height:230px}
  .compare{grid-template-columns:1fr}
  .cmp-vs{position:static;transform:none;margin:0 auto}
  .rank-list{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr;padding-top:0;gap:0}
  .timeline::before{display:none}
  .tl{display:grid;grid-template-columns:auto 1fr;gap:14px;text-align:left;align-items:start;padding:14px 0;border-bottom:1px solid var(--line)}
  .tl-dot{margin:8px 0 0}
  .tl-year{grid-column:2}
  .tl p{grid-column:2;margin-top:0}
  .news-grid{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:1fr}
  .sub-form{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .card,.chan,.mx,.kpi{border-radius:var(--r-sm)}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:40px 0}
  .hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .kpi-grid{grid-template-columns:1fr}
  .kpi-num{font-size:40px}
  .card-grid{gap:14px}
  .card-body{padding:12px 12px 14px}
  .card-title{font-size:15px}
  .news-thumb{flex:0 0 96px}
  .footer-grid{grid-template-columns:1fr}
  .sub-wrap{padding:22px}
  .hero-actions .btn{flex:1}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}