/* roulang page: index */
:root{
    --primary:#2f6bb0;
    --primary-dark:#1f4f8b;
    --primary-soft:#edf4fc;
    --accent:#f5a742;
    --accent-soft:#fef3df;
    --bg:#f5f8fc;
    --surface:#ffffff;
    --ink:#182b3f;
    --muted:#617790;
    --line:#dce6f2;
    --green:#2e9c61;
    --red:#d05353;
    --radius-lg:20px;
    --radius-md:14px;
    --radius-sm:8px;
    --shadow:0 12px 34px rgba(30,64,115,.08);
    --shadow-hover:0 20px 44px rgba(30,64,115,.14);
    --space:clamp(56px,9vw,120px);
}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
    font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
    background:var(--bg);
    color:var(--ink);
    line-height:1.85;
    margin:0;
    -webkit-font-smoothing:antialiased;
}
*,*::before,*::after{box-sizing:border-box}
a{color:inherit;text-decoration:none;transition:all .25s ease}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
ul{list-style:none;margin:0;padding:0}
.grid-container{max-width:1200px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.28;margin:0 0 14px;font-weight:800}
p{margin:0}
.section{padding:var(--space) 0}
.section-head{max-width:820px;margin:0 auto 54px;text-align:center}
.section-head h2{font-size:clamp(27px,3.4vw,38px);color:#13283c;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px}
.glow-heading strong{color:var(--primary)}

/* 按钮 */
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:999px;border:1px solid transparent;
    font-weight:700;line-height:1;cursor:pointer;
    gap:8px;transition:all .25s ease;
}
.btn-primary{background:var(--primary);color:#fff;padding:15px 28px;box-shadow:0 8px 20px rgba(47,107,176,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,176,.32)}
.btn-primary:active{transform:scale(.98);box-shadow:0 4px 10px rgba(47,107,176,.18)}
.btn-outline{background:#fff;color:var(--primary-dark);border-color:#c1d3e9;padding:15px 28px;box-shadow:0 6px 14px rgba(32,78,130,.05)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);background:var(--primary-soft)}
.btn-outline:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-large{padding:15px 30px;font-size:16px}
.btn-block{width:100%}

/* 顶部导航 */
.site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:relative;z-index:40}
.site-header.is-sticky{position:sticky;top:0;backdrop-filter:blur(10px)}
.header-inner{display:flex;align-items:center;gap:26px;min-height:72px;position:relative}
.brand{display:flex;align-items:center;gap:9px;font-size:22px;font-weight:900;color:var(--primary);letter-spacing:-.01em;padding:8px 0}
.brand:hover{color:var(--primary-dark)}
.brand-dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(245,167,66,.18)}
.brand-moon{width:19px;height:19px;border-radius:50%;background:var(--primary);position:relative;border:4px solid #fff;box-shadow:0 0 0 2px var(--primary)}
.brand-moon::before{content:"";position:absolute;width:19px;height:14px;background:var(--accent);border-radius:50%;top:-3px;left:-5px}
.main-nav{display:flex;gap:30px;margin-left:8px;margin-right:auto}
.nav-link{position:relative;color:#475e79;font-size:15px;font-weight:600;padding:10px 2px}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary-dark);font-weight:800}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:3px;border-radius:99px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:42px;height:42px;border:0;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);font-size:21px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle:hover{background:var(--primary);color:#fff}

/* 英雄区 */
.hero-strip{background:radial-gradient(circle at 83% 12%,rgba(47,107,176,.14),transparent 28%),linear-gradient(180deg,#f8fbff,#eff5fc);overflow:hidden;border-bottom:1px solid var(--line)}
.hero-padding{padding:clamp(46px,6vw,90px) 0 58px}
.eyebrow{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:13px;color:var(--primary-dark);font-weight:700;box-shadow:0 4px 14px rgba(32,78,130,.06);margin-bottom:22px}
.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:blink 1.8s infinite}
@keyframes blink{50%{opacity:.45}}
.hero-title{font-size:clamp(34px,4.8vw,58px);line-height:1.18;font-weight:900;letter-spacing:-.02em;color:#122740;margin-bottom:18px}
.hero-title span{color:var(--primary)}
.hero-lead{font-size:17px;color:var(--muted);max-width:580px;line-height:2}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-mini-data{display:flex;flex-wrap:wrap;gap:14px 30px;margin-top:32px;padding-top:22px;border-top:1px solid rgba(78,121,166,.16)}
.hero-mini-data li{font-size:14px;color:var(--muted)}
.hero-mini-data strong{display:block;font-size:20px;color:var(--primary-dark)}

/* 首屏播放演示 */
.stage-player{position:relative;border-radius:22px;background:#fff;border:1px solid #e0eaf6;box-shadow:0 26px 60px rgba(31,72,126,.16);overflow:hidden}
.stage-top{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid #e8eff7}
.now-live{display:inline-flex;align-items:center;gap:8px;color:#183b5e;font-size:14px;font-weight:700}
.live-red{width:8px;height:8px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(208,83,83,.15);animation:blink 1.6s infinite}
.stage-no{font-size:13px;color:#8a9eb6;letter-spacing:.2em}
.stage-media{position:relative;aspect-ratio:16/10;background:#dbe7f2;overflow:hidden}
.stage-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.jpg');background-size:cover;background-position:center}
.stage-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,30,50,.05) 0%,rgba(15,30,50,.2) 100%)}
.play-wrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:14px}
.play-circle{width:68px;height:68px;border-radius:50%;background:rgba(255,255,255,.92);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(15,34,58,.2);transition:transform .25s ease}
.play-circle::before{content:"";width:0;height:0;border-left:18px solid var(--primary);border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:5px}
.stage-caption{position:absolute;left:18px;right:18px;bottom:16px;display:flex;align-items:center;justify-content:space-between;z-index:2;color:#fff;font-size:14px;background:rgba(13,28,46,.28);border-radius:12px;padding:9px 12px;backdrop-filter:blur(5px)}
.chip-label{padding:3px 10px;border-radius:99px;background:var(--accent);color:#2b1f0d;font-weight:800;font-size:12px}
.stage-foot{display:flex;align-items:center;justify-content:space-between;padding:15px 18px;font-size:13px;color:var(--muted)}
.users-pile{display:flex}
.users-pile span{width:28px;height:28px;border-radius:50%;border:2px solid #fff;margin-right:-8px;background:#cdd9e8;font-size:12px;color:#9dacbe;display:flex;align-items:center;justify-content:center}
.stage-foot b{color:var(--primary-dark)}

/* 指标看板 */
.metric-section{padding:var(--space) 0 0}
.metric-panel{background:linear-gradient(180deg,#eef4fb,#f7faff);border:1px solid #e1e9f4;border-radius:22px;padding:26px;margin-top:20px}
.metric-grid{margin-top:10px}
.metric-card{background:#fff;border-radius:18px;padding:20px;margin-top:22px;border:1px solid #e7edf6;box-shadow:var(--shadow);position:relative;overflow:hidden}
.metric-card::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:linear-gradient(90deg,var(--primary),#6ba1d8)}
.metric-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}
.metric-label{color:var(--muted);font-size:14px;font-weight:600}
.metric-delta{border-radius:99px;padding:3px 9px;font-size:12px;font-weight:700}
.delta-up{color:#1f7a4a;background:#e3f5e9}
.delta-down{color:#b04646;background:#fbe8e8}
.metric-value{font-size:34px;line-height:1.2;color:var(--primary-dark);font-weight:900;letter-spacing:-.02em}
.metric-unit{font-size:15px;font-weight:700;color:#304a69;margin-left:2px}
.metric-note{color:#899aad;font-size:12px;margin-top:6px}
.spark{display:flex;align-items:flex-end;gap:4px;height:36px;margin-top:10px}
.spark i{background:#b9cde6;width:6px;border-radius:4px}
.spark i:nth-child(1){height:28%}
.spark i:nth-child(2){height:38%}
.spark i:nth-child(3){height:24%}
.spark i:nth-child(4){height:52%}
.spark i:nth-child(5){height:62%}
.spark i:nth-child(6){height:88%;background:var(--primary)}
.spark.up i{background:#86b59c}
.spark.up i:nth-child(6){background:var(--green)}

/* 服务矩阵 */
.service-section{background:linear-gradient(180deg,#f6faff,#ffffff);padding:var(--space) 0}
.service-card{height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:27px 27px 23px;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#cfdded}
.service-card .icon{width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);margin-bottom:18px;font-size:24px;line-height:1}
.service-card:hover .icon{background:var(--primary);color:#fff}
.service-card h3{font-size:20px;margin-bottom:9px}
.service-card p{color:var(--muted);font-size:14.5px;line-height:1.8;flex:1}
.service-card .card-tips{color:#9aabc0;font-size:13px;margin-top:14px;font-weight:500}
.cta-tile{background:linear-gradient(145deg,#2f6bb0,#235a96);border:none;color:#fff}
.cta-tile h3, .cta-tile p{color:#fff}
.cta-tile .bg-tag{position:absolute;right:10px;top:10px;background:rgba(255,255,255,.15);padding:4px 12px;border-radius:99px;font-size:12px}
.service-link{display:inline-flex;align-items:center;gap:7px;color:var(--accent);font-weight:800;font-size:14px;margin-top:16px}
.service-link:hover{color:#fff;gap:11px}
.cta-tile .icon{background:rgba(255,255,255,.18);color:#ffe4c7;border-radius:14px}

/* 对比 */
.compare-section{background:var(--primary-soft);padding:var(--space) 0}
.contrast-panel{background:#fff;border-radius:24px;box-shadow:var(--shadow);padding:clamp(24px,4vw,48px)}
.secret-badge{display:inline-flex;gap:8px;align-items:center;border:1px solid #d4e1f0;border-radius:99px;background:#f2f7fd;padding:5px 14px;color:var(--muted);font-size:13px;font-weight:600;margin-bottom:26px}
.secret-badge i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.contrast-legend{display:flex;align-items:center;gap:28px;margin-bottom:30px}
.legend-item{display:flex;align-items:center;gap:9px;font-weight:800;font-size:15px}
.legend-key{width:10px;height:10px;border-radius:3px}
.legend-key.before{background:#a4b9d1}
.legend-key.after{background:var(--primary)}
.compare-row{display:grid;grid-template-columns:150px minmax(0,1fr);gap:10px 26px;padding:17px 0;border-bottom:1px solid #edf2f9;align-items:center}
.compare-row:last-child{border-bottom:0}
.compare-name{font-weight:800;color:#273f5b;font-size:15px;display:flex;align-items:center}
.compare-bars{display:flex;flex-direction:column;gap:10px}
.single-bar{display:grid;grid-template-columns:82px minmax(0,1fr) 60px;align-items:center;gap:10px;font-size:13px}
.single-bar .side-name{color:#8b9eb2}
.single-bar .bar-track{background:#e7eef7;border-radius:99px;height:8px;overflow:hidden}
.bar-fill{height:100%;border-radius:99px}
.fill-before{background:#b3c4d8}
.fill-after{background:var(--primary)}
.fill-num{font-weight:800;color:#425f7c;text-align:right}
.compare-foot{margin-top:30px;background:#f5f9fe;border-radius:16px;padding:19px 22px;color:var(--muted);font-size:13px;line-height:1.9}

/* 资格说明 */
.join-section{background:#fff;padding:var(--space) 0}
.join-wrap{display:grid;grid-template-columns:1.25fr 1fr;gap:54px;align-items:start}
.check-card{background:#f7faff;border:1px solid #e3ebf6;border-radius:20px;padding:23px;margin-bottom:16px;display:flex;align-items:flex-start;gap:13px}
.check-card .check-ic{width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;flex:0 0 24px;margin-top:4px}
.check-card .check-title{font-weight:800;margin-bottom:3px}
.check-card p{color:var(--muted);font-size:14px}
.step-list{position:relative;counter-reset:step;padding-left:10px}
.step-list::before{content:"";position:absolute;left:21px;top:16px;bottom:16px;width:3px;background:linear-gradient(180deg,var(--primary),#9ec1e7);border-radius:99px}
.step-item{position:relative;padding:0 0 30px 52px;margin-right:18px}
.step-item:last-child{padding-bottom:0}
.step-no{position:absolute;left:0;top:0;width:44px;height:44px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 16px rgba(32,78,130,.08);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:900}
.step-item h4{font-size:18px;margin-bottom:6px}
.step-item p{color:var(--muted);font-size:14px;line-height:1.8}
.approve-note{margin-top:34px;background:var(--primary-soft);border-radius:18px;padding:20px 22px;font-size:14px;color:#38516e;display:flex;gap:12px}
.approve-note strong{color:var(--primary-dark)}

/* 资讯区 */
.news-section{background:#f5f8fc;padding:var(--space) 0}
.news-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:30px;align-items:start}
.news-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:8px 0 10px;box-shadow:var(--shadow)}
.news-head{display:flex;align-items:center;justify-content:space-between;padding:14px 26px;border-bottom:1px solid var(--line)}
.news-head h3{margin:0;font-size:17px}
.news-more{color:var(--primary);font-weight:700;font-size:13px}
.news-more:hover{color:var(--primary-dark);text-decoration:underline}
.news-listitem{display:flex;align-items:flex-start;gap:12px;padding:17px 26px;border-bottom:1px solid #eef3fa}
.news-listitem:last-child{border-bottom:0}
.news-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:0 0 8px;margin-top:10px}
.news-title{font-weight:700;display:block;color:#314a65;font-size:15.5px;line-height:1.7}
.news-title:hover{color:var(--primary)}
.news-time{font-size:12px;color:#91a3b7;display:block;margin-top:5px}
.side-stack{display:flex;flex-direction:column;gap:22px}
.recommend-card{background:#fff;border-radius:21px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.recommend-cover{position:relative;aspect-ratio:16/9;background-size:cover;background-position:center}
.recommend-cover .cover-tag{position:absolute;left:14px;bottom:12px;background:rgba(15,30,50,.72);color:#fff;font-size:12px;padding:4px 11px;border-radius:99px;border:1px solid rgba(255,255,255,.3)}
.recommend-body{padding:18px 20px 21px}
.recommend-body h4{font-size:17px;line-height:1.55}
.recommend-body a:hover{color:var(--primary)}
.side-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:12px}
.side-tag{background:#f2f7fc;border:1px solid #dfeaf4;color:#486484;border-radius:99px;padding:5px 13px;font-size:13px;font-weight:600}
.side-tag:hover{background:var(--primary);border-color:var(--primary);color:#fff}

/* FAQ */
.faq-section{background:#fff;padding:var(--space) 0}
.faq-wrap{max-width:860px;margin:0 auto}
.night-accordion{background:transparent;border:0;margin:0}
.night-accordion .accordion-item{background:#f8fbfe;border:1px solid var(--line);border-radius:18px;margin-bottom:13px;padding:0;transition:border-color .25s ease,background .25s ease}
.night-accordion .accordion-item.is-active{background:#f2f7fd;border-color:#c6d9ee;box-shadow:0 8px 20px rgba(32,78,130,.06)}
.night-accordion .accordion-title{background:transparent;border:0;color:#233d58;font-size:17px;font-weight:800;padding:19px 22px;display:block;position:relative;margin:0;transition:color .25s ease}
.night-accordion .accordion-title:hover{color:var(--primary);background:transparent}
.night-accordion .accordion-item.is-active>.accordion-title{color:var(--primary-dark);background:transparent}
.night-accordion .accordion-title:before,.night-accordion .accordion-title:after{display:none}
.night-accordion .accordion-title .qa-plus{position:absolute;right:20px;top:17px;font-size:22px;color:var(--primary);font-weight:400}
.night-accordion .accordion-content{background:transparent;border:0;padding:0 23px 22px;color:var(--muted);line-height:1.95;font-size:15px}

/* 申请表单 */
.apply-section{background:linear-gradient(180deg,#eef4fb,#f7faff);padding:var(--space) 0}
.apply-card{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr)}
.apply-side{background:#213f63;color:#fff;padding:clamp(27px,4vw,50px);position:relative}
.apply-side h2{font-size:clamp(27px,3vw,37px);color:#fff;margin-bottom:14px}
.apply-side p{color:#c1d3e7;margin-bottom:28px;line-height:1.9}
.apply-tips{display:flex;gap:14px;margin-bottom:14px;background:rgba(255,255,255,.1);border-radius:14px;padding:15px 16px;align-items:flex-start}
.apply-tips .tip-no{flex:0 0 auto;background:var(--accent);color:#49340e;font-weight:900;border-radius:8px;width:30px;height:30px;display:flex;align-items:center;justify-content:center}
.apply-tips h4{color:#fff;margin-bottom:3px;font-size:16px}
.apply-tips p{color:#bcd0e4;font-size:13.5px;line-height:1.8;margin:0}
.apply-form{background:transparent;padding:clamp(22px,4vw,44px);display:flex;flex-direction:column;gap:18px}
.field-row{display:flex;gap:14px}
.apply-form label{font-size:13.5px;color:#5b738f;font-weight:700;flex:1}
.apply-form input,.apply-form select,.apply-form textarea{
    width:100%;margin-top:5px;border:1.5px solid #d9e4f0;background:#fbfcfe;border-radius:12px;
    padding:12px 14px;font-size:14px;color:var(--ink);font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.apply-form input:focus,.apply-form select:focus,.apply-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(47,107,176,.12);background:#fff}
.apply-form input::placeholder{color:#aab9cb}
.apply-form select{height:49px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,#8aa1ba 50%),linear-gradient(135deg,#8aa1ba 50%,transparent 50%);background-position:calc(100% - 19px) 20px,calc(100% - 13px) 20px;background-size:6px 6px;background-repeat:no-repeat}
.form-submit{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-top:8px}
.form-note{font-size:12px;color:#9aabc0;line-height:1.7}
.success-label{display:none;color:#1f7a4a;background:#e3f5e9;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:700;margin-top:6px}

/* 页脚 */
.site-footer{background:#eaf1f8;border-top:1px solid #dce6f1;padding:60px 0 0;color:#425e78}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:44px}
.footer-brand{font-size:21px;color:var(--primary-dark);font-weight:900;display:flex;align-items:center;gap:9px;margin-bottom:13px}
.footer-about p{font-size:14px;line-height:1.95}
.footer-title{font-size:15px;font-weight:800;margin-bottom:14px;color:#233d56}
.footer-links a{display:block;padding:5px 0;color:#5f7792;font-size:14px}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{background:#fff;border:1px solid #d8e2ed;font-size:13px;color:#4d6886;padding:4px 11px;border-radius:99px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid #d6e2ef;padding:18px 0;color:#6b829c;font-size:13px}
.back-top{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid #cfddea;padding:8px 14px;border-radius:99px;font-size:13px;font-weight:800;color:#3b5f87}
.back-top:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

/* 响应式 */
@media screen and (max-width:1023px){
    .grid-container{padding:0 20px}
    .hero-grid{gap:30px}
    .hero-padding .grid-x .cell{padding:0}
    .main-nav{position:absolute;top:calc(100% + 10px);right:14px;left:14px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 40px rgba(25,54,90,.14);display:none;flex-direction:column;gap:2px;padding:12px;z-index:60}
    .main-nav.open{display:flex}
    .nav-toggle{display:inline-flex}
    .nav-link{padding:12px 12px}
    .nav-link.active::after{opacity:0}
    .nav-link.active{background:var(--primary-soft);border-radius:11px}
    .header-inner{gap:12px}
}
@media screen and (max-width:767px){
    .grid-container{padding:0 16px}
    .site-header.is-sticky{min-height:64px}
    .brand{font-size:20px}
    .hero-title{font-size:32px}
    .hero-lead{font-size:16px}
    .hero-btns .btn{width:100%}
    .metric-panel{padding:12px}
    .metric-card{margin-bottom:12px}
    .section-head{margin-bottom:34px}
    .join-wrap,.news-layout,.apply-card{grid-template-columns:1fr}
    .apply-side{padding:28px 22px}
    .apply-form{padding:24px 20px}
    .compare-row{grid-template-columns:1fr;gap:8px}
    .compare-name{margin-bottom:2px}
    .single-bar{grid-template-columns:74px minmax(0,1fr) 48px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
    .step-item{margin-right:0}
    .step-list::before{left:21px}
}
@media screen and (max-width:520px){
    .brand-moon{display:none}
    .footer-grid,.field-row{grid-template-columns:1fr;display:grid}
    .footer-grid{grid-template-columns:1fr;gap:22px}
    .field-row{display:flex;flex-direction:column}
    .stage-foot{flex-direction:column;gap:10px;align-items:flex-start}
    .stage-caption{flex-direction:column;align-items:flex-start;gap:9px}
    .hero-mini-data{gap:16px}
    .footer-bottom{justify-content:center;text-align:center}
    .btn{width:100%}
    .header-actions .btn{display:none}
    .nav-toggle{margin-left:auto}
    .metric-card{margin-bottom:12px}
    .compare-bars{gap:12px}
    .single-bar{grid-template-columns:66px minmax(0,1fr) 42px}
    .accordion-title{padding-right:50px}
}

/* roulang page: category1 */
/* ========== roulang design system ========== */
:root{
  --primary:#2f6bb0;
  --primary-dark:#1f4f8b;
  --primary-soft:#edf4fc;
  --accent:#f5a742;
  --accent-soft:#fef3df;
  --bg:#f5f8fc;
  --surface:#ffffff;
  --ink:#182b3f;
  --muted:#617790;
  --line:#dce6f2;
  --green:#2e9c61;
  --red:#d05353;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow:0 12px 34px rgba(30,64,115,.08);
  --shadow-hover:0 20px 44px rgba(30,64,115,.14);
  --space:clamp(56px,9vw,120px);
}
html{scroll-behavior:smooth;scroll-padding-top:80px}
*{box-sizing:border-box}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.85;
  margin:0;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:all .25s ease}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,li{margin:0;padding:0}
ul{list-style:none}
.grid-container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--space) 0}
.section-head{max-width:820px;margin:0 auto 52px;text-align:center}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.35;color:#13283c;letter-spacing:-.01em;margin-top:10px}
.section-head p{color:var(--muted);font-size:16px;margin-top:12px}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--primary);background:var(--primary-soft);padding:5px 14px;border-radius:999px}
.glow-heading strong{color:var(--primary)}
/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1px solid transparent;
  font-weight:700;line-height:1;cursor:pointer;
  gap:8px;transition:all .25s ease;
  text-align:center;
}
.btn-primary{background:var(--primary);color:#fff;padding:15px 28px;box-shadow:0 8px 20px rgba(47,107,176,.25)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,107,176,.32)}
.btn-primary:active{transform:scale(.98);box-shadow:0 4px 10px rgba(47,107,176,.18)}
.btn-outline{background:#fff;color:var(--primary-dark);border-color:#c1d3e9;padding:15px 28px;box-shadow:0 6px 14px rgba(32,78,130,.05)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);background:var(--primary-soft)}
.btn-outline:active{transform:scale(.98)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-large{padding:15px 30px;font-size:16px}
/* 顶部导航 */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:40}
.site-header.is-sticky{position:sticky;top:0;box-shadow:0 6px 18px rgba(31,72,126,.05)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px;position:relative}
.brand{display:flex;align-items:center;gap:9px;font-size:22px;font-weight:900;color:var(--primary);letter-spacing:-.01em;padding:8px 0}
.brand:hover{color:var(--primary-dark)}
.brand-dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(245,167,66,.18)}
.brand-moon{width:19px;height:19px;border-radius:50%;background:var(--primary);position:relative;border:4px solid #fff;box-shadow:0 0 0 2px var(--primary);flex:0 0 auto}
.brand-moon::before{content:"";position:absolute;width:19px;height:13px;background:var(--accent);border-radius:50%;top:-3px;left:-5px}
.main-nav{display:flex;gap:28px;margin-left:8px;margin-right:auto}
.nav-link{position:relative;color:#475e79;font-size:15px;font-weight:600;padding:10px 2px}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary-dark);font-weight:800}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:-2px;width:100%;height:3px;border-radius:99px;background:var(--accent)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:42px;height:42px;border:0;border-radius:12px;background:var(--primary-soft);color:var(--primary-dark);font-size:22px;cursor:pointer;align-items:center;justify-content:center}
.nav-toggle:hover{background:var(--primary);color:#fff}
/* ===== 分类页页头 ===== */
.category-hero{
  background:radial-gradient(circle at 84% 12%,rgba(47,107,176,.12),transparent 26%),linear-gradient(180deg,#f8fbff,#edf5fb);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:40px 0 clamp(42px,5vw,72px);
}
.cat-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(30px,4.6vw,68px);align-items:center}
.crumbline{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:18px;font-weight:500}
.crumbline a{color:var(--primary)}
.crumbline a:hover{color:var(--primary-dark)}
.crumb-sep{color:#a3b6cc}
.eyebrow{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:13px;color:var(--primary-dark);font-weight:700;box-shadow:0 4px 14px rgba(32,78,130,.06);margin-bottom:20px}
.eyebrow-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:blink 1.8s infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.35}}
.cat-hero-copy h1{font-size:clamp(30px,4vw,48px);line-height:1.25;font-weight:900;letter-spacing:-.02em;color:#122740;margin-bottom:20px}
.cat-hero-copy h1 span{color:var(--primary)}
.cat-hero-copy h1 em{font-style:normal;color:var(--accent)}
.cat-hero-lead{font-size:16px;line-height:2;color:var(--muted);max-width:600px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{display:flex;align-items:center;gap:9px;margin-top:22px;font-size:14px;color:#7088a5;background:#fff;border:1px dashed #cbdcef;border-radius:12px;padding:9px 14px;max-width:520px}
.hero-note i{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(46,156,97,.15)}
/* 首屏播放卡片 */
.night-card{
  background:#fff;border:1px solid #e1eaf5;border-radius:24px;
  box-shadow:0 28px 64px rgba(24,51,84,.13);overflow:hidden;
  transform:rotate(.6deg);transition:all .3s ease;
}
.night-card:hover{transform:rotate(0) translateY(-4px);box-shadow:0 32px 72px rgba(24,51,84,.18)}
.night-card-top{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid #e9eff7}
.night-card-top b{color:var(--primary-dark);font-size:15px}
.night-card-top span{color:#8a9eb6;font-size:12px;letter-spacing:.12em}
.night-media{position:relative;aspect-ratio:16/10;background:#dbe7f2;overflow:hidden}
.night-media img{width:100%;height:100%;object-fit:cover}
.night-live{position:absolute;top:14px;left:14px;z-index:2;background:rgba(255,255,255,.92);border-radius:999px;padding:5px 11px;font-size:12px;font-weight:800;color:var(--primary-dark);display:flex;align-items:center;gap:6px}
.night-live i{width:7px;height:7px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(208,83,83,.18)}
.night-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;z-index:1}
.night-play span{width:66px;height:66px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;color:var(--primary);box-shadow:0 8px 26px rgba(0,0,0,.18);font-size:20px}
.night-foot{display:flex;justify-content:space-between;gap:12px;padding:15px 18px;border-top:1px solid #edf2f9}
.night-foot div b{display:block;color:var(--primary-dark);font-size:14px}
.night-foot div span{font-size:12px;color:#8a9eb6}
/* ===== 档案指标 ===== */
.metric-wrap{padding:0 0 var(--space)}
.metric-panel{background:linear-gradient(180deg,#eaf3fb,#f6fafd);border:1px solid #dfeaf5;border-radius:var(--radius-lg);padding:34px 28px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:28px}
.metric-card{position:relative;background:#fff;border:1px solid #e7edf6;border-radius:18px;padding:22px 20px;box-shadow:var(--shadow);overflow:hidden}
.metric-card::before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:var(--primary);opacity:.7}
.metric-card.pulse::before{background:var(--accent)}
.metric-title{font-size:14px;color:var(--muted);margin-bottom:8px}
.metric-num{display:flex;align-items:flex-end;gap:4px;font-size:36px;font-weight:900;color:var(--primary-dark);line-height:1}
.metric-unit{font-size:13px;color:#8aa0b8;font-weight:600;margin-bottom:5px}
.metric-tag{display:inline-flex;align-items:center;gap:4px;margin-top:12px;background:rgba(46,156,97,.1);color:#1f7c4c;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:800}
.metric-tag.down{background:rgba(208,83,83,.1);color:#a83c3c}
/* ===== 栏目矩阵 ===== */
.channel-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:stretch}
.channel-card{background:#fff;border:1px solid #e5edf6;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:all .28s ease;display:flex;flex-direction:column}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.channel-card .channel-media{aspect-ratio:16/10;position:relative;background:#dbe7f2;overflow:hidden}
.channel-card .channel-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.channel-card:hover .channel-media img{transform:scale(1.03)}
.channel-body{flex:1;display:flex;flex-direction:column;gap:10px;padding:22px 24px 24px}
.channel-body h3{font-size:22px;color:#13283c;line-height:1.4}
.channel-body p{font-size:14px;line-height:1.9;color:var(--muted);flex:1}
.channel-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#8a9eb6;border-top:1px solid #edf2f9;padding-top:14px}
.channel-card.card-a{grid-column:span 7}
.channel-card.card-b{grid-column:span 5}
.channel-card.card-c{grid-column:span 5}
.channel-card.card-d{grid-column:span 7}
.channel-card.card-e{grid-column:span 6}
.channel-card.card-f{grid-column:span 6}
.badge{display:inline-flex;align-items:center;gap:4px;background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:4px 11px;font-size:12px;font-weight:800}
.badge.badge-hot{background:var(--accent-soft);color:#9a6012}
.badge.badge-soon{background:#f0f4f8;color:#68839e}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:700;font-size:14px}
.text-link:hover{color:var(--primary-dark);gap:9px}
/* ===== 流程模块 ===== */
.flow-section{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:16px}
.flow-step{position:relative;background:#f8fbfe;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;transition:all .25s ease}
.flow-step:hover{background:#fff;box-shadow:var(--shadow);border-color:#c9dbef}
.flow-step .step-no{font-size:14px;font-weight:900;color:var(--accent);background:var(--accent-soft);width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.flow-step h3{font-size:19px;margin-bottom:8px;color:#13283c}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.9}
/* ===== 对比模块 ===== */
.compare-section{background:#eef5fb;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.compare-box{background:#fff;border:1px solid #e3ecf5;border-radius:var(--radius-lg);padding:34px 30px;box-shadow:var(--shadow)}
.compare-heads{display:grid;grid-template-columns:150px 1fr 1fr;gap:18px;align-items:center;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid #e9eff7}
.compare-heads .col-head{font-size:15px;font-weight:800;color:var(--primary-dark);position:relative;padding-left:14px}
.compare-heads .col-head::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:22px;border-radius:99px;background:var(--line)}
.compare-heads .col-head.before::before{background:#b6c7da}
.compare-heads .col-head.after::before{background:var(--accent)}
.compare-row{display:grid;grid-template-columns:150px 1fr 1fr;gap:18px;align-items:center;padding:13px 0;border-bottom:1px solid #edf2f9}
.compare-row:last-child{border-bottom:0}
.compare-name{font-size:14px;color:#4b637e;font-weight:700}
.bar-track{height:13px;background:#eef3f8;border-radius:99px;overflow:hidden}
.bar-fill{height:100%;border-radius:99px;background:#b8c9db}
.bar-fill.night{background:linear-gradient(90deg,var(--primary),#4d8ac6)}
.bar-fill.hot{background:linear-gradient(90deg,var(--accent),#f6b85b)}
.compare-side span{display:block;margin-top:8px;font-size:12px;color:#8a9eb6}
.compare-note{margin-top:22px;font-size:14px;color:var(--muted);background:var(--primary-soft);border-radius:12px;padding:12px 16px}
/* ===== FAQ ===== */
.rl-accordion{list-style:none;margin:34px 0 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:8px 18px;box-shadow:var(--shadow)}
.rl-accordion .accordion-item{border-bottom:1px solid #eaeef5;margin:0}
.rl-accordion .accordion-item:last-child{border-bottom:0}
.rl-accordion .accordion-title{
  background:transparent;
  border:0;border-radius:0;
  padding:18px 8px 18px 40px;
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  position:relative;
  transition:all .25s ease;
}
.rl-accordion .accordion-title::before{
  content:"＋";
  position:absolute;left:6px;top:50%;
  transform:translateY(-50%);
  width:25px;height:25px;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:15px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.rl-accordion .accordion-title::after{content:""}
.rl-accordion .accordion-item.is-active .accordion-title{
  color:var(--primary-dark);
  background:transparent;
}
.rl-accordion .accordion-item.is-active .accordion-title::before{
  content:"−";
  background:var(--primary);
  color:#fff;
}
.rl-accordion .accordion-title:hover{color:var(--primary);background:transparent}
.rl-accordion .accordion-title:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;border-radius:8px}
.rl-accordion .accordion-content{
  background:#fafcff;
  border:0;border-radius:0;
  padding:2px 18px 22px 40px;
  font-size:15px;
  color:var(--muted);
  line-height:2;
}
/* ===== CTA ===== */
.cta-section{padding:var(--space) 0 30px}
.cta-panel{position:relative;background:#fff;border:1px solid #e1eaf4;border-radius:26px;padding:50px 36px;box-shadow:0 26px 60px rgba(24,51,84,.1);overflow:hidden}
.cta-panel::before{content:"";position:absolute;right:-120px;top:-120px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(245,167,66,.2),rgba(245,167,66,0) 70%)}
.cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}
.cta-copy h2{font-size:clamp(24px,3vw,34px);line-height:1.4;color:#13283c;margin-bottom:12px}
.cta-copy p{font-size:15px;color:var(--muted);margin-bottom:24px;max-width:620px}
.cta-copy .cta-links{display:flex;flex-wrap:wrap;gap:12px}
.cta-tips{background:var(--primary-soft);border-radius:18px;padding:24px;font-size:14px;color:#486481;line-height:2}
.cta-tips b{display:block;color:var(--primary-dark);font-size:16px;margin-bottom:6px}
/* ===== 页脚 ===== */
.site-footer{background:#edf4fb;border-top:1px solid var(--line);margin-top:40px;padding:52px 0 0;position:relative}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1.4fr;gap:34px;padding-bottom:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;color:var(--primary-dark)}
.footer-about > p{font-size:14px;color:var(--muted);margin-top:14px;max-width:360px;line-height:2}
.footer-title{font-size:15px;font-weight:800;color:#2b4665;margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#54708e}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{font-size:14px;color:var(--muted);margin-top:0;line-height:1.9}
.footer-contact .f-mail{display:inline-block;margin-top:14px;color:var(--primary-dark);font-weight:700;font-size:15px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;align-items:center;border-top:1px solid #d5e2f0;padding:22px 0;font-size:14px;color:var(--muted)}
.footer-mark{color:var(--muted);font-weight:400}
.footer-copy{display:flex;align-items:center;gap:18px;font-size:13px}
.shadow-copyright{color:#9db2c8}
.to-top{position:absolute;right:22px;bottom:88px;width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--primary);box-shadow:var(--shadow);font-size:20px;font-weight:900;z-index:3}
.to-top:hover{bottom:94px;background:var(--primary);color:#fff}
/* ===== 响应式 ===== */
@media(max-width:1023px){
  .cat-hero-grid{grid-template-columns:1fr}
  .cat-hero-copy h1{max-width:720px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .channel-card.card-a,.channel-card.card-b,.channel-card.card-c,.channel-card.card-d,.channel-card.card-e,.channel-card.card-f{grid-column:span 6}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-toggle{display:inline-flex}
  .main-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px 20px;flex-direction:column;gap:8px;display:none;box-shadow:0 20px 30px rgba(31,72,126,.1)}
  .site-header.menu-open .main-nav{display:flex}
  .header-actions .btn{display:none}
  .nav-link{display:block;padding:10px 2px;border-bottom:1px solid #eef3f8}
  .nav-link.active::after{left:0;width:44px;bottom:6px}
  .compare-heads,.compare-row{grid-template-columns:120px 1fr 1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:15px}
  .grid-container{padding:0 18px}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric-card{padding:18px}
  .channel-card.card-a,.channel-card.card-b,.channel-card.card-c,.channel-card.card-d,.channel-card.card-e,.channel-card.card-f{grid-column:span 12}
  .flow-grid{grid-template-columns:1fr}
  .compare-heads{display:none}
  .compare-row{grid-template-columns:1fr;gap:8px}
  .compare-side span{margin-top:4px}
  .cta-panel{padding:32px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-copy{flex-wrap:wrap}
}
@media(max-width:420px){
  .metric-wrap .metric-panel{padding:28px 16px}
  .hero-btns .btn{width:100%}
}