/* roulang page: index */
:root{
  --blue:#2f80ed;--blue-dark:#1768ce;--blue-soft:#eaf3ff;--ink:#17263d;
  --muted:#6d7c91;--line:#e4eaf2;--paper:#fff;--mist:#f5f8fc;
  --warm:#f28c6b;--warm-soft:#fff1eb;--green:#23a77a;--radius:18px;
  --shadow:0 14px 38px rgba(35,72,115,.09);--shadow-sm:0 7px 20px rgba(35,72,115,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer;border:0}
img,svg{display:block;max-width:100%}
.container{width:min(1200px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--ink);letter-spacing:-.3px}
.logo-box{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(135deg,#428ff3,#246dcc);color:#fff;font-size:12px;font-weight:900;box-shadow:0 7px 15px rgba(47,128,237,.23)}
.brand-name{font-size:17px}
.nav{display:flex;align-items:center;gap:27px}
.nav a{height:76px;display:flex;align-items:center;color:#5d6d82;font-size:14px;position:relative;transition:.2s}
.nav a:after{content:"";position:absolute;bottom:0;left:0;width:0;height:3px;border-radius:3px;background:var(--blue);transition:.2s}
.nav a:hover,.nav a.active{color:var(--blue);font-weight:700}
.nav a:hover:after,.nav a.active:after{width:100%}
.menu-btn{display:none;background:var(--blue-soft);color:var(--blue);width:40px;height:40px;border-radius:10px;font-size:22px}
.hero{padding:58px 0 48px;background:linear-gradient(180deg,#f5f9ff 0%,#fff 100%);border-bottom:1px solid #edf2f8}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:54px;align-items:center}
.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:1.4px}
.eyebrow:before,.section-kicker:before{content:"";width:22px;height:2px;background:var(--warm);border-radius:2px}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.18;letter-spacing:-2px;margin:16px 0 17px;max-width:620px}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero-lead{font-size:17px;color:#617188;max-width:620px;margin-bottom:25px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:10px;font-weight:700;font-size:14px;transition:.2s;border:1px solid transparent}
.btn-primary{color:#fff;background:var(--blue);box-shadow:0 9px 18px rgba(47,128,237,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px)}
.btn-outline{color:var(--blue);background:#fff;border-color:#bcd5f5}
.btn-outline:hover{background:var(--blue-soft);border-color:var(--blue)}
.btn:focus,input:focus,button:focus{outline:3px solid rgba(47,128,237,.25);outline-offset:2px}
.hero-side{background:#fff;border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow)}
.route-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.route-head strong{font-size:17px}.route-head span{font-size:12px;color:var(--muted)}
.route-line{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:24px 0 22px;position:relative}
.route-line:before{content:"";height:2px;background:#dce9f8;position:absolute;top:13px;left:10%;right:10%}
.route-node{position:relative;text-align:center;color:var(--muted);font-size:12px}
.route-node i{display:block;width:28px;height:28px;border-radius:50%;background:#dce9f8;border:6px solid #fff;box-shadow:0 0 0 1px #cbdff5;margin:0 auto 8px}
.route-node.done{color:var(--blue);font-weight:700}.route-node.done i{background:var(--blue)}
.mini-content{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.mini-card{padding:13px;border-radius:13px;background:var(--mist);border:1px solid #edf1f6}
.mini-cover{height:82px;border-radius:10px;margin-bottom:9px;display:flex;align-items:flex-end;padding:9px;color:white;font-weight:800;font-size:13px;background:linear-gradient(145deg,#536fb3,#a7c4ec)}
.mini-card:nth-child(2) .mini-cover{background:linear-gradient(145deg,#db856d,#f5c7a6)}
.mini-card:nth-child(3) .mini-cover{background:linear-gradient(145deg,#4b9c90,#b9e0d3)}
.mini-card:nth-child(4) .mini-cover{background:linear-gradient(145deg,#755a9f,#d4b9ea)}
.mini-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:40px}
.stat{padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow-sm)}
.stat strong{display:block;color:var(--blue);font-size:25px;line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}
section{padding:82px 0;scroll-margin-top:78px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
.section-head h2{font-size:30px;line-height:1.25;letter-spacing:-.7px;margin-top:8px}
.section-head p{color:var(--muted);max-width:580px;font-size:14px}
.text-link{color:var(--blue);font-weight:700;font-size:14px;white-space:nowrap}
.text-link:hover{text-decoration:underline}
.latest{background:#fff}
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.content-card{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;transition:.25s;box-shadow:var(--shadow-sm)}
.content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.poster{height:218px;position:relative;display:flex;align-items:flex-end;padding:15px;color:#fff;overflow:hidden;background:linear-gradient(145deg,#668ac1,#b8d0f4)}
.poster:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(14,30,56,.72),transparent 62%)}
.poster strong{position:relative;font-size:17px;line-height:1.3}
.poster small{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.9);color:#235fa9;border-radius:6px;padding:2px 7px;font-size:11px;font-weight:800}
.poster.p2{background:linear-gradient(145deg,#b16d80,#f2c7b6)}.poster.p3{background:linear-gradient(145deg,#427f82,#b4d9cc)}.poster.p4{background:linear-gradient(145deg,#755d9d,#d8c6e8)}.poster.p5{background:linear-gradient(145deg,#5e7e9c,#c5d8dc)}.poster.p6{background:linear-gradient(145deg,#a77a49,#ebd19e)}.poster.p7{background:linear-gradient(145deg,#44759e,#a6d3e7)}.poster.p8{background:linear-gradient(145deg,#9b6c79,#e8b6bd)}.poster.p9{background:linear-gradient(145deg,#538d72,#bddfb6)}.poster.p10{background:linear-gradient(145deg,#665e9e,#c7c8ef)}.poster.p11{background:linear-gradient(145deg,#9b7658,#efd2b3)}.poster.p12{background:linear-gradient(145deg,#426a9d,#b7cbed)}
.card-body{padding:14px 15px}.card-title{font-weight:800;font-size:15px;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-foot{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}
.badge{display:inline-flex;align-items:center;padding:3px 7px;border-radius:5px;font-size:11px;font-weight:800}
.badge.blue{background:var(--blue-soft);color:var(--blue)}.badge.orange{background:var(--warm-soft);color:#d86d4d}.badge.green{background:#e9f8f1;color:#19835e}
.rating{color:#e48a39;font-weight:800}.rating:before{content:"★ ";font-size:11px}
.feature{background:var(--mist)}
.hot-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.hot-main{min-height:350px;border-radius:21px;padding:27px;display:flex;align-items:flex-end;color:#fff;position:relative;overflow:hidden;background:linear-gradient(135deg,#254c83,#6e9dd5)}
.hot-main:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(13,34,65,.84),transparent 65%)}
.hot-main>*{position:relative}.hot-main h3{font-size:29px;margin:8px 0}.hot-main p{max-width:440px;color:#e3eefb}
.hot-main .hot-number{position:absolute;right:25px;top:22px;font-size:54px;font-weight:900;color:rgba(255,255,255,.18)}
.hot-list{display:grid;gap:11px}
.hot-item{display:grid;grid-template-columns:78px 1fr auto;align-items:center;gap:13px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:13px;transition:.2s}
.hot-item:hover{border-color:#a9cdf5;transform:translateX(3px)}
.thumb{height:64px;border-radius:9px;background:linear-gradient(135deg,#9ab9e1,#e2edf9)}.thumb.t2{background:linear-gradient(135deg,#d49e8f,#f4ddd1)}.thumb.t3{background:linear-gradient(135deg,#83b6a9,#d9eee4)}.thumb.t4{background:linear-gradient(135deg,#9c8dc4,#e5dff2)}.thumb.t5{background:linear-gradient(135deg,#8ea2b6,#dce6ef)}
.hot-item strong{font-size:14px;display:block}.hot-item small{font-size:12px;color:var(--muted)}
.hot-score{text-align:right;color:var(--blue);font-weight:800;font-size:14px}
.channels{background:#fff}
.channel-wrap{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.channel{padding:27px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:174px;position:relative}
.channel-num{color:#b9c8da;font-size:12px;font-weight:800}.channel h3{font-size:20px;margin:8px 0 7px}.channel p{color:var(--muted);font-size:14px}.channel a{display:inline-block;margin-top:12px;color:var(--blue);font-size:13px;font-weight:700}
.channel:hover{background:#f7fbff}
.rank-section{background:#f9fbfd}
.rank-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 45px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 25px;box-shadow:var(--shadow-sm)}
.rank-row{display:grid;grid-template-columns:40px 1fr auto auto;gap:12px;align-items:center;padding:15px 0;border-bottom:1px solid #edf1f5}
.rank-row:nth-last-child(-n+2){border-bottom:0}.rank-no{font-size:21px;color:#aab9cc;font-weight:900}.rank-row:nth-child(-n+3) .rank-no{color:var(--warm)}
.rank-name{font-weight:700}.rank-name small{display:block;color:var(--muted);font-size:12px;font-weight:400}.heat{color:#e17b5d;font-size:13px}.rank-score{color:var(--blue);font-weight:800;font-size:13px}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.news-item{display:grid;grid-template-columns:145px 1fr;gap:17px;padding:13px;border:1px solid var(--line);border-radius:15px;transition:.2s}
.news-item:hover{box-shadow:var(--shadow-sm);border-color:#b9d6f6}.news-img{height:104px;border-radius:10px;background:linear-gradient(135deg,#6c94c7,#c9dcf2)}.news-img.n2{background:linear-gradient(135deg,#bc806c,#f0d0be)}.news-img.n3{background:linear-gradient(135deg,#649789,#c7e2d5)}.news-img.n4{background:linear-gradient(135deg,#756a9e,#d8d2e9)}.news-img.n5{background:linear-gradient(135deg,#9b7b5d,#e9d2af)}.news-img.n6{background:linear-gradient(135deg,#547ca2,#c3d6e8)}
.news-item h3{font-size:15px;line-height:1.45;margin:7px 0}.news-item p{color:var(--muted);font-size:12px}.date{color:#8d9bad;font-size:12px}
.topic{background:#eef6ff}.topic-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}.topic-main{padding:35px;border-radius:21px;background:#2f80ed;color:#fff;min-height:235px}.topic-main h3{font-size:27px;line-height:1.3;margin:13px 0}.topic-main p{color:#dfecff;max-width:570px}.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}.topic-tags span{padding:5px 10px;border-radius:20px;background:rgba(255,255,255,.15);font-size:12px}.topic-side{display:grid;gap:12px}.topic-link{background:#fff;border:1px solid #d7e7fa;padding:20px;border-radius:15px;display:flex;justify-content:space-between;align-items:center}.topic-link strong{font-size:15px}.topic-link span{color:var(--blue);font-weight:800}
.guard{background:#fff}.guard-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:center}.guard-copy h2{font-size:30px;line-height:1.3;margin:8px 0 14px}.guard-copy p{color:var(--muted)}.guard-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.guard-item{padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow-sm)}.guard-item b{display:flex;align-items:center;gap:9px}.guard-item b:before{content:"✓";display:grid;place-items:center;width:23px;height:23px;border-radius:50%;color:#fff;background:var(--green);font-size:12px}.guard-item span{display:block;color:var(--muted);font-size:13px;margin-top:8px}
.timeline-section{background:var(--mist)}.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin-top:38px}.timeline:before{content:"";position:absolute;top:12px;left:4%;right:4%;height:2px;background:#c8daf0}.time-node{position:relative;text-align:center}.time-node i{display:block;width:25px;height:25px;margin:0 auto 16px;border:7px solid var(--mist);border-radius:50%;background:var(--blue);box-shadow:0 0 0 1px #acd0f5}.time-node.current i{background:var(--warm);box-shadow:0 0 0 1px #f4b39e}.time-node strong{font-size:14px;display:block}.time-node span{font-size:12px;color:var(--muted);display:block;margin-top:5px}
.quick{padding:64px 0}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.quick-item{padding:21px;border-radius:15px;background:#f8fbff;border:1px solid #e0edf9}.quick-item b{color:var(--blue);font-size:13px}.quick-item h3{font-size:15px;margin:9px 0 5px}.quick-item p{font-size:13px;color:var(--muted)}
.faq-section{background:#fff}.faq-wrap{max-width:850px;margin:auto}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 4px;background:none;text-align:left;display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--ink)}.faq-question span{font-size:23px;color:var(--blue);font-weight:400;transition:.2s}.faq-answer{display:none;padding:0 40px 20px 4px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg)}
.subscribe{padding:70px 0}.subscribe-box{border-radius:22px;background:linear-gradient(120deg,#194e9a,#3f8eea);padding:42px 50px;display:flex;justify-content:space-between;align-items:center;gap:35px;color:#fff}.subscribe-box h2{font-size:28px;line-height:1.35;margin:9px 0}.subscribe-box p{color:#dceaff;max-width:560px}.subscribe-form{display:flex;gap:8px;min-width:370px}.subscribe-form input{height:46px;min-width:0;flex:1;border:0;border-radius:9px;padding:0 14px;color:var(--ink)}.subscribe-form button{height:46px;padding:0 17px;border-radius:9px;background:var(--warm);color:#fff;font-weight:800}.form-note{font-size:12px;color:#c9def9;margin-top:8px}.error{display:none;color:#ffd8cc;font-size:12px;margin-top:6px}
.bottom-topics{padding-top:25px;background:#fff}.topic-pills{display:flex;flex-wrap:wrap;gap:10px}.topic-pills a{padding:11px 17px;border:1px solid var(--line);border-radius:10px;color:#52667e;font-size:13px;background:#fff;transition:.2s}.topic-pills a:hover{color:var(--blue);border-color:#a9cdf5;background:var(--blue-soft)}
.site-footer{padding:52px 0 20px;background:#f5f8fc;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:30px;padding-bottom:40px}.footer-brand p{color:var(--muted);font-size:13px;max-width:280px;margin-top:13px}.footer-col h3{font-size:14px;margin-bottom:13px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--blue)}.copyright{border-top:1px solid var(--line);padding-top:18px;color:#8b99aa;font-size:12px}
@media(max-width:1024px){.nav{gap:15px}.content-grid{grid-template-columns:repeat(3,1fr)}.hero-grid{gap:28px}.hot-layout,.guard-layout{gap:25px}}
@media(max-width:768px){.container{width:min(100% - 30px,600px)}.site-header,.header-inner{height:66px}.nav{position:absolute;top:66px;left:15px;right:15px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px;display:none;box-shadow:var(--shadow)}.nav.show{display:block}.nav a{height:44px;padding:0 12px;border-radius:8px}.nav a:hover,.nav a.active{background:var(--blue-soft)}.nav a:after{display:none}.menu-btn{display:block}.hero{padding:44px 0 35px}.hero-grid,.hot-layout,.topic-layout,.guard-layout{grid-template-columns:1fr}.hero h1{font-size:39px}.stats{grid-template-columns:repeat(2,1fr);margin-top:28px}.content-grid{grid-template-columns:repeat(2,1fr)}.poster{height:190px}section{padding:60px 0}.section-head{display:block}.section-head p{margin-top:12px}.section-head .text-link{display:inline-block;margin-top:12px}.rank-grid{grid-template-columns:1fr;padding:8px 18px}.rank-row:nth-last-child(-n+2){border-bottom:1px solid #edf1f5}.rank-row:last-child{border-bottom:0}.news-grid{grid-template-columns:1fr}.quick-grid{grid-template-columns:repeat(2,1fr)}.timeline{grid-template-columns:1fr;gap:20px;margin-top:25px}.timeline:before{top:12px;bottom:12px;left:12px;width:2px;height:auto;right:auto}.time-node{text-align:left;padding-left:47px}.time-node i{position:absolute;left:0;top:0}.subscribe-box{display:block;padding:32px 25px}.subscribe-form{min-width:0;margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.brand-name{font-size:15px}.hero h1{font-size:34px;letter-spacing:-1px}.hero-lead{font-size:15px}.stats{gap:8px}.stat{padding:14px}.stat strong{font-size:21px}.content-grid{gap:10px}.poster{height:155px;padding:10px}.poster strong{font-size:14px}.card-body{padding:11px}.card-title{font-size:13px}.hot-main{min-height:280px;padding:20px}.hot-main h3{font-size:24px}.hot-item{grid-template-columns:62px 1fr auto}.thumb{height:56px}.channel-wrap{grid-template-columns:1fr}.channel{min-height:auto;padding:22px}.guard-list{grid-template-columns:1fr}.quick-grid{grid-template-columns:1fr}.subscribe-form{display:block}.subscribe-form input,.subscribe-form button{width:100%;margin-bottom:8px}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-brand{grid-column:1/-1}}