/* roulang page: index */
:root{
            --ink:#111311;
            --panel:#191d19;
            --panel-2:#222622;
            --paper:#f1f0e9;
            --text:#f4f3ec;
            --muted:#b9bbaF;
            --dim:#858a80;
            --line:rgba(244,243,236,.13);
            --lime:#c7f34a;
            --coral:#ff765f;
            --radius:14px;
            --shadow:0 20px 50px rgba(0,0,0,.24);
            --ease:220ms ease;
        }
        *,*::before,*::after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--ink);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
        a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
        img{display:block;max-width:100%;height:auto}
        button,input,select,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:2px solid var(--lime);outline-offset:4px}
        .grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(17,19,17,.96);border-bottom:1px solid var(--line);box-shadow:0 8px 25px rgba(0,0,0,.18)}
        .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
        .brand{display:inline-flex;align-items:center;gap:11px;min-width:250px;font-weight:800;letter-spacing:-.04em;line-height:1.15}
        .brand-mark{width:16px;height:16px;background:var(--lime);display:inline-block;transform:rotate(45deg);box-shadow:5px 5px 0 var(--coral)}
        .brand-text{font-size:17px}
        .segment-nav{display:flex;align-items:center;gap:5px;flex:1}
        .segment-nav a{padding:9px 15px;border:1px solid transparent;border-radius:8px;color:var(--muted);font-size:14px;white-space:nowrap}
        .segment-nav a:hover{color:var(--text);border-color:var(--line);background:var(--panel-2)}
        .segment-nav a.active{background:var(--lime);color:var(--ink);font-weight:800}
        .nav-cta,.button-primary{background:var(--lime);color:var(--ink);border:0;border-radius:9px;padding:12px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
        .nav-cta:hover,.button-primary:hover{background:#b9e33f;color:var(--ink);transform:translateY(-2px);box-shadow:3px 3px 0 var(--coral)}
        .menu-toggle{display:none;background:transparent;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px 11px}
        .section{padding:100px 0}
        .section-head{max-width:720px;margin-bottom:42px}
        .eyebrow{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
        h1,h2,h3{margin:0;color:var(--text);font-weight:800;letter-spacing:-.045em;line-height:1.2}
        h1{font-size:clamp(38px,5.3vw,64px);max-width:760px}
        h2{font-size:clamp(29px,3.2vw,42px)}
        h3{font-size:21px}
        p{color:var(--muted);margin:0}
        .lead{font-size:18px;line-height:1.9;max-width:680px;margin-top:24px}
        .hero{padding:92px 0 66px;position:relative;background:#151815}
        .hero::before{content:"";position:absolute;inset:0;opacity:.25;background-image:linear-gradient(rgba(199,243,74,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(199,243,74,.08) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,#000,transparent 75%)}
        .hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
        .hero-copy{padding:25px 0}
        .hero-kicker{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(199,243,74,.4);border-radius:30px;padding:6px 12px;color:var(--lime);font-size:13px;margin-bottom:25px}
        .hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--coral);display:block}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
        .button-secondary{border:1px solid rgba(244,243,236,.35);border-radius:9px;padding:11px 18px;color:var(--text);display:inline-flex;align-items:center;justify-content:center}
        .button-secondary:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
        .hero-note{margin-top:22px;color:var(--dim);font-size:13px}
        .cover-stage{min-height:390px;position:relative;display:flex;align-items:center;justify-content:center}
        .cover-main{width:86%;aspect-ratio:4/3;background:#30382a;border:1px solid rgba(244,243,236,.23);position:relative;overflow:hidden;transform:skewY(-3deg);box-shadow:18px 18px 0 rgba(199,243,74,.9),var(--shadow)}
        .cover-main::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 45%,rgba(255,118,95,.8) 45.2%,rgba(255,118,95,.8) 47%,transparent 47.2%),repeating-linear-gradient(90deg,transparent 0 34px,rgba(244,243,236,.09) 35px 36px)}
        .cover-main::after{content:"INDEX / 01";position:absolute;right:20px;top:18px;color:var(--lime);font-size:12px;letter-spacing:.12em}
        .cover-title{position:absolute;left:25px;bottom:22px;font-size:31px;font-weight:800;line-height:1.2;max-width:230px}
        .cover-panel{position:absolute;right:0;bottom:12px;width:178px;background:var(--paper);color:var(--ink);padding:17px;box-shadow:8px 8px 0 var(--coral)}
        .cover-panel strong{font-size:25px;display:block;line-height:1.2}
        .cover-panel span{font-size:12px;color:#62675c}
        .hero-strip{border-top:1px solid var(--line);margin-top:70px;padding-top:19px;display:flex;gap:40px;color:var(--dim);font-size:13px}
        .hero-strip b{color:var(--text);margin-right:7px}
        .service-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
        .entry-card{position:relative;min-height:250px;border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--panel);overflow:hidden}
        .entry-card:hover,.feature-card:hover,.list-card:hover{transform:translateY(-4px);border-color:rgba(199,243,74,.55);box-shadow:var(--shadow)}
        .entry-card.large{min-height:392px;display:flex;flex-direction:column;justify-content:flex-end;background:#262e23}
        .entry-card.large::before{content:"";position:absolute;inset:0;background:linear-gradient(140deg,transparent 34%,rgba(199,243,74,.18) 34.2% 35%,transparent 35.2%),linear-gradient(0deg,rgba(17,19,17,.9),transparent 70%)}
        .entry-card>*{position:relative}
        .entry-card h3{margin:15px 0 8px}
        .entry-card p{font-size:14px;max-width:520px}
        .side-stack{display:grid;gap:18px}
        .side-stack .entry-card{min-height:187px}
        .tag{display:inline-flex;align-items:center;min-height:25px;border-radius:6px;padding:2px 8px;background:rgba(199,243,74,.14);color:var(--lime);font-size:12px;font-weight:700}
        .tag.coral{background:rgba(255,118,95,.15);color:var(--coral)}
        .entry-link{display:inline-flex;color:var(--lime);font-size:14px;margin-top:17px;font-weight:700}
        .metric-band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0}
        .metric-grid{display:grid;grid-template-columns:1.2fr 1.2fr repeat(3,1fr);gap:20px;align-items:center}
        .metric{padding:5px 20px;border-left:1px solid var(--line)}
        .metric:first-child{border-left:0}
        .metric strong{display:block;color:var(--lime);font-size:28px;line-height:1.25}
        .metric span{display:block;color:var(--dim);font-size:13px}
        .metric-bar{height:5px;background:#353b32;margin-top:12px}
        .metric-bar i{display:block;height:100%;background:var(--lime)}
        .feature-layout{display:grid;grid-template-columns:2fr 1fr;gap:18px}
        .feature-card{min-height:365px;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;background:#283027}
        .feature-card::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,118,95,.35),transparent 45%),linear-gradient(0deg,rgba(17,19,17,.94),transparent 68%)}
        .feature-card>*{position:relative}
        .feature-card h3{font-size:28px;margin:14px 0 8px}
        .feature-list{border:1px solid var(--line);border-radius:var(--radius);padding:10px 24px;background:var(--panel)}
        .feature-list a{display:block;border-bottom:1px solid var(--line);padding:19px 0}
        .feature-list a:last-child{border-bottom:0}
        .index-num{color:var(--coral);font-size:12px;font-weight:800;margin-right:9px}
        .feature-list strong{display:block;font-size:15px}
        .feature-list small{color:var(--dim);display:block;margin-top:4px;font-size:12px}
        .path-section{background:var(--paper);color:var(--ink)}
        .path-section h2,.path-section h3{color:var(--ink)}
        .path-section p{color:#62675d}
        .path-track{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:2px solid #c9ccc1}
        .path-step{padding:28px 30px 8px 0;position:relative}
        .path-step:not(:last-child){border-right:1px solid #d4d6cc;padding-right:30px;margin-right:30px}
        .path-step::before{content:"";width:12px;height:12px;border-radius:50%;background:var(--lime);position:absolute;top:-7px;left:0;box-shadow:0 0 0 5px var(--paper)}
        .path-step b{display:block;color:#858a80;font-size:12px;letter-spacing:.08em;margin-bottom:9px}
        .path-step h3{margin-bottom:8px}
        .path-step .notice{color:#b14c3d;font-size:13px;margin-top:13px}
        .info-section{padding-top:86px}
        .info-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
        .info-panel{border:1px solid var(--line);border-radius:var(--radius);padding:27px;background:var(--panel)}
        .info-panel h3{margin-bottom:18px}
        .news-list{list-style:none;margin:0;padding:0}
        .news-list li{border-bottom:1px solid var(--line);padding:13px 0}
        .news-list li:last-child{border-bottom:0}
        .news-list a{display:flex;justify-content:space-between;gap:15px;font-size:14px}
        .news-list a:hover{color:var(--lime)}
        .news-list time{color:var(--dim);white-space:nowrap;font-size:12px}
        .safety-items{display:grid;gap:12px}
        .safety-item{display:flex;gap:13px;align-items:flex-start}
        .safety-icon{width:28px;height:28px;border:1px solid var(--lime);color:var(--lime);border-radius:7px;display:grid;place-items:center;flex:none;font-size:14px}
        .safety-item strong{font-size:14px;display:block}
        .safety-item p{font-size:13px;line-height:1.6}
        .faq-wrap{max-width:820px;margin:auto}
        .accordion{background:transparent;margin:0}
        .accordion-item{border-bottom:1px solid var(--line);background:transparent}
        .accordion-title{color:var(--text);font-size:16px;font-weight:700;padding:21px 42px 21px 18px;border:0;background:transparent}
        .accordion-title:hover,.accordion-item.is-active .accordion-title{color:var(--lime);background:var(--panel)}
        .accordion-title::before{color:var(--coral);font-size:20px}
        .accordion-content{background:var(--panel);border:0;color:var(--muted);padding:0 42px 22px 18px;font-size:14px;line-height:1.8}
        .contact-section{padding-top:30px}
        .contact-box{background:#252c23;border:1px solid rgba(199,243,74,.28);border-radius:var(--radius);padding:42px;display:grid;grid-template-columns:.85fr 1.15fr;gap:50px}
        .contact-box h2{margin:10px 0 17px}
        .contact-box .lead{font-size:16px;margin-top:0}
        .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
        .form-field.full{grid-column:1/-1}
        label{display:block;color:var(--muted);font-size:13px;margin-bottom:5px}
        input,select,textarea{width:100%;background:#141714;border:1px solid var(--line);border-radius:7px;color:var(--text);padding:11px 12px;min-height:45px}
        textarea{min-height:100px;resize:vertical}
        input:hover,select:hover,textarea:hover{border-color:rgba(244,243,236,.4)}
        .form-check{display:flex;align-items:flex-start;gap:9px;margin:14px 0;color:var(--dim);font-size:12px;line-height:1.6}
        .form-check input{width:16px;min-height:16px;margin-top:3px;accent-color:var(--lime)}
        .form-feedback{font-size:13px;color:var(--lime);min-height:24px;margin-top:10px}
        .site-footer{border-top:1px solid var(--line);padding:45px 0 24px;background:#0d0f0d}
        .footer-top{display:flex;justify-content:space-between;gap:30px;align-items:flex-start}
        .footer-brand{max-width:350px}
        .footer-brand .brand{min-width:0}
        .footer-brand p{font-size:13px;margin-top:17px}
        .footer-nav{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);font-size:13px}
        .footer-nav a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;color:var(--dim);font-size:12px}
        @media(max-width:900px){
            .brand{min-width:0}.nav-wrap{gap:15px}.segment-nav a{padding:8px 10px}
            .hero-grid,.contact-box{grid-template-columns:1fr}.cover-stage{min-height:350px}
            .metric-grid{grid-template-columns:repeat(3,1fr)}.metric:nth-child(-n+2){grid-column:span 1}
            .feature-layout,.info-grid{grid-template-columns:1fr}
        }
        @media(max-width:700px){
            .grid-container{padding-left:18px;padding-right:18px}.section{padding:68px 0}
            .menu-toggle{display:block;margin-left:auto}.nav-cta{display:none}
            .segment-nav{display:none;position:absolute;left:18px;right:18px;top:68px;padding:10px;background:var(--panel);border:1px solid var(--line);border-radius:10px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
            .segment-nav.is-open{display:flex}.segment-nav a{padding:12px 14px}
            .hero{padding-top:60px}.hero-strip{gap:18px;flex-wrap:wrap;margin-top:48px}
            .service-layout,.path-track{grid-template-columns:1fr}.side-stack{grid-template-columns:1fr}
            .entry-card.large{min-height:310px}.metric-grid{grid-template-columns:repeat(2,1fr);gap:0}
            .metric{margin:12px 0}.metric:first-child{border-left:1px solid var(--line)}
            .path-step:not(:last-child){border-right:0;border-bottom:1px solid #d4d6cc;margin:0;padding-right:0;padding-bottom:27px}
            .path-step{padding-left:25px}.contact-box{padding:28px 20px;gap:30px}
            .footer-top,.footer-bottom{display:block}.footer-nav{margin-top:25px}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media(max-width:480px){
            h1{font-size:38px}.lead{font-size:16px}.hero-actions a{width:100%}
            .cover-main{width:92%}.cover-title{font-size:25px}.cover-panel{width:145px;padding:13px}
            .feature-card{min-height:310px}.form-grid{grid-template-columns:1fr}.form-field.full{grid-column:auto}
        }

/* roulang page: category2 */
:root{
      --ink:#111311;
      --panel:#191d19;
      --panel-2:#222622;
      --paper:#f1f0e9;
      --text:#f4f3ec;
      --muted:#b9bbaf;
      --dim:#858a80;
      --line:rgba(244,243,236,.13);
      --lime:#c7f34a;
      --coral:#ff765f;
      --radius:14px;
      --shadow:0 20px 50px rgba(0,0,0,.24);
      --ease:220ms ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--ink);color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;line-height:1.8;overflow-x:hidden
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{font-weight:800;line-height:1.25}
    h1{font-size:clamp(38px,5vw,62px);letter-spacing:-.045em;margin-bottom:22px}
    h2{font-size:clamp(28px,3.5vw,40px);letter-spacing:-.035em;margin-bottom:16px}
    h3{font-size:21px;margin-bottom:10px}
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:2px solid var(--lime);outline-offset:4px;box-shadow:0 0 0 5px rgba(255,118,95,.35)}
    .grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,19,17,.97);border-bottom:1px solid var(--line);box-shadow:0 8px 25px rgba(0,0,0,.18)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:250px;font-weight:800;letter-spacing:-.04em;line-height:1.15}
    .brand-mark{width:16px;height:16px;background:var(--lime);display:inline-block;transform:rotate(45deg);box-shadow:5px 5px 0 var(--coral);flex:none}
    .brand-text{font-size:17px}
    .segment-nav{display:flex;align-items:center;gap:5px;flex:1}
    .segment-nav a{padding:9px 15px;border:1px solid transparent;border-radius:8px;color:var(--muted);font-size:14px;white-space:nowrap}
    .segment-nav a:hover{color:var(--text);border-color:var(--line);background:var(--panel-2)}
    .segment-nav a.active{background:var(--lime);color:var(--ink);font-weight:800}
    .nav-cta,.button-primary{background:var(--lime);color:var(--ink);border:0;border-radius:9px;padding:12px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-cta:hover,.button-primary:hover{background:#b9e33f;color:var(--ink);transform:translateY(-2px);box-shadow:3px 3px 0 var(--coral)}
    .menu-toggle{display:none;background:transparent;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px 11px}
    .section{padding:96px 0}
    .eyebrow{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em}
    .lead{font-size:18px;line-height:1.9;max-width:720px;color:var(--muted)}
    .hero-index{padding:88px 0 54px;background:#151815;position:relative;overflow:hidden}
    .hero-index:after{content:"02";position:absolute;right:5%;bottom:-38px;color:rgba(199,243,74,.08);font-size:190px;font-weight:900;line-height:1}
    .hero-index .grid-x{position:relative;z-index:1}
    .hero-summary{max-width:460px;margin:15px 0 0;color:var(--muted)}
    .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .tag{display:inline-flex;align-items:center;min-height:26px;border-radius:6px;padding:2px 9px;background:rgba(199,243,74,.14);color:var(--lime);font-size:12px;font-weight:700}
    .tag.coral{background:rgba(255,118,95,.15);color:var(--coral)}
    .index-art{min-height:270px;border:1px solid var(--line);background:var(--panel);position:relative;padding:30px;overflow:hidden;box-shadow:16px 16px 0 rgba(199,243,74,.8),var(--shadow)}
    .index-art:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 35%,rgba(255,118,95,.75) 35.3% 37%,transparent 37.3%),repeating-linear-gradient(0deg,transparent 0 27px,rgba(244,243,236,.07) 28px 29px)}
    .art-code,.art-title{position:relative;z-index:1}
    .art-code{color:var(--lime);font-size:12px;letter-spacing:.14em}
    .art-title{position:absolute;left:30px;bottom:25px;max-width:270px;font-size:29px;font-weight:800;line-height:1.2}
    .quick-index{border-top:1px solid var(--line);margin-top:64px;padding-top:18px;display:flex;gap:24px;flex-wrap:wrap;color:var(--dim);font-size:13px}
    .quick-index a{color:var(--muted)}
    .quick-index a:hover{color:var(--lime)}
    .topic-layout{display:grid;grid-template-columns:250px 1fr;gap:55px;align-items:start}
    .topic-aside{position:sticky;top:105px;border-left:1px solid var(--line);padding-left:21px}
    .topic-aside strong{display:block;color:var(--text);margin-bottom:13px}
    .topic-aside a{display:block;padding:7px 0;color:var(--dim);font-size:14px}
    .topic-aside a:hover,.topic-aside a.active{color:var(--lime)}
    .topic-aside .aside-note{margin-top:25px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--dim)}
    .content-group{padding-bottom:62px;margin-bottom:62px;border-bottom:1px solid var(--line)}
    .group-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}
    .group-head p{color:var(--muted);font-size:14px;margin:0;max-width:430px}
    .group-mark{color:var(--coral);font-size:12px;font-weight:800;letter-spacing:.1em}
    .index-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:24px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .index-card:hover{transform:translateY(-4px);border-color:rgba(199,243,74,.55);box-shadow:var(--shadow)}
    .index-card h3{margin:13px 0 7px}
    .index-card p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:16px}
    .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--dim);font-size:12px}
    .arrow{color:var(--lime);font-size:20px;line-height:1}
    .wide-index{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
    .wide-index .index-card:first-child{background:#293127;min-height:245px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
    .wide-index .index-card:first-child:before{content:"";position:absolute;right:-20px;top:20px;width:180px;height:180px;border:1px solid rgba(199,243,74,.35);transform:rotate(45deg)}
    .wide-index .index-card:first-child>*{position:relative}
    .rank-list{display:grid;gap:10px}
    .rank-item{display:grid;grid-template-columns:42px 1fr auto;gap:13px;align-items:center;border-bottom:1px solid var(--line);padding:15px 0}
    .rank-item:last-child{border-bottom:0}
    .rank-number{color:var(--lime);font-size:20px;font-weight:800}
    .rank-item strong{display:block;font-size:16px}
    .rank-item span{display:block;color:var(--dim);font-size:13px}
    .status{font-size:12px;color:var(--muted);white-space:nowrap}
    .status.ready{color:var(--lime)}
    .status.notice{color:var(--coral)}
    .reading-panel{background:var(--paper);color:#191b18;border-radius:var(--radius);padding:28px 31px;margin:0 0 62px;border-left:5px solid var(--coral)}
    .reading-panel h2{font-size:23px;margin-bottom:9px}
    .reading-panel p{margin:0;color:#4c5148;font-size:15px}
    .property-list{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
    .property{border-top:2px solid var(--lime);padding:17px 0 0}
    .property strong{display:block;margin-bottom:5px}
    .property span{font-size:14px;color:var(--muted)}
    .faq-wrap{max-width:820px}
    .accordion{background:transparent;margin:0;border:0}
    .accordion-item{border:1px solid var(--line);border-radius:10px;margin-bottom:10px;background:var(--panel);overflow:hidden}
    .accordion-title{color:var(--text);font-weight:700;font-size:16px;padding:18px 48px 18px 21px;border:0}
    .accordion-title:hover{background:var(--panel-2);color:var(--lime)}
    .accordion-title:before{color:var(--lime);font-size:20px}
    .accordion-content{background:#20241f;color:var(--muted);border:0;padding:0 21px 20px;font-size:14px;line-height:1.8}
    .cta-panel{background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius);padding:42px;display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-panel p{color:var(--muted);margin:0;max-width:620px}
    .site-footer{padding:55px 0 25px;border-top:1px solid var(--line);background:#0d0f0d}
    .footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:37px}
    .footer-brand{max-width:430px}
    .footer-brand p{color:var(--dim);font-size:13px;margin:17px 0 0}
    .footer-nav{display:flex;gap:20px;flex-wrap:wrap;align-content:start}
    .footer-nav a{color:var(--muted);font-size:14px}
    .footer-nav a:hover{color:var(--lime)}
    .footer-bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:var(--dim);font-size:12px}
    @media(max-width:900px){
      .nav-wrap{gap:15px}.brand{min-width:0;flex:1}.brand-text{font-size:15px}
      .nav-cta{display:none}.hero-index{padding-top:65px}.topic-layout{grid-template-columns:190px 1fr;gap:30px}
    }
    @media(max-width:767px){
      .grid-container{padding-left:18px;padding-right:18px}
      .nav-wrap{min-height:68px;flex-wrap:wrap}.menu-toggle{display:block}
      .segment-nav{display:none;order:3;flex-basis:100%;padding:10px 0 16px;overflow-x:auto}
      .segment-nav.is-open{display:flex}.segment-nav a{flex:0 0 auto}
      .hero-index{padding:53px 0 40px}.hero-index .cell{margin-bottom:28px}.hero-index .cell:last-child{margin-bottom:0}
      .index-art{min-height:230px}.quick-index{margin-top:40px}
      .topic-layout{display:block}.topic-aside{position:static;display:flex;align-items:center;gap:14px;overflow-x:auto;border-left:0;border-bottom:1px solid var(--line);padding:0 0 13px;margin-bottom:40px}
      .topic-aside strong,.topic-aside .aside-note{display:none}.topic-aside a{white-space:nowrap;padding:6px 12px;border:1px solid var(--line);border-radius:7px}
      .wide-index{grid-template-columns:1fr}.group-head{display:block}.group-head p{margin-top:8px}
      .property-list{grid-template-columns:1fr}.reading-panel{padding:23px 20px}
      .cta-panel{display:block;padding:30px 24px}.cta-panel .button-primary{margin-top:22px;width:100%}
      .footer-top,.footer-bottom{display:block}.footer-nav{margin-top:25px}.footer-bottom span{display:block;margin-top:10px}
      .section{padding:65px 0}
    }
    @media(max-width:480px){
      h1{font-size:37px}.hero-actions a{width:100%}.button-secondary,.button-primary{width:100%}
      .rank-item{grid-template-columns:34px 1fr}.rank-item .status{grid-column:2}
    }

/* roulang page: category1 */
:root{
      --ink:#111311;--panel:#191d19;--panel-2:#222622;--paper:#f1f0e9;
      --text:#f4f3ec;--muted:#b9bbaf;--dim:#858a80;
      --line:rgba(244,243,236,.13);--lime:#c7f34a;--coral:#ff765f;
      --radius:14px;--shadow:0 20px 50px rgba(0,0,0,.24);--ease:220ms ease;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--ink);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}
    h1,h2,h3,h4,p{margin-top:0} h1,h2,h3,h4{font-weight:800;line-height:1.25}
    h1{font-size:clamp(36px,5vw,62px);letter-spacing:-.055em;margin-bottom:22px}
    h2{font-size:clamp(28px,3.2vw,40px);letter-spacing:-.04em;margin-bottom:16px}
    h3{font-size:22px;margin-bottom:10px}
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
    img{display:block;max-width:100%;height:auto} button,input,select,textarea{font:inherit} button{cursor:pointer}
    .grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(17,19,17,.97);border-bottom:1px solid var(--line);box-shadow:0 8px 25px rgba(0,0,0,.18)}
    .nav-wrap{min-height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:250px;font-weight:800;letter-spacing:-.04em;line-height:1.15}
    .brand-mark{width:16px;height:16px;background:var(--lime);display:inline-block;transform:rotate(45deg);box-shadow:5px 5px 0 var(--coral);flex:0 0 auto}
    .brand-text{font-size:17px}
    .segment-nav{display:flex;align-items:center;gap:5px;flex:1}
    .segment-nav a{padding:9px 15px;border:1px solid transparent;border-radius:8px;color:var(--muted);font-size:14px;white-space:nowrap}
    .segment-nav a:hover{color:var(--text);border-color:var(--line);background:var(--panel-2)}
    .segment-nav a.active{background:var(--lime);color:var(--ink);font-weight:800}
    .nav-cta,.button-primary{background:var(--lime);color:var(--ink);border:0;border-radius:9px;padding:12px 18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}
    .nav-cta:hover,.button-primary:hover{background:#b9e33f;color:var(--ink);transform:translateY(-2px);box-shadow:3px 3px 0 var(--coral)}
    .button-secondary{border:1px solid rgba(244,243,236,.35);border-radius:9px;padding:11px 18px;color:var(--text);display:inline-flex;align-items:center;justify-content:center}
    .button-secondary:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
    .menu-toggle{display:none;background:transparent;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:8px 11px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    .eyebrow{color:var(--lime);font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
    .section{padding:92px 0}.section-head{max-width:760px;margin-bottom:38px}
    .lead{font-size:18px;line-height:1.9;max-width:690px;color:var(--muted)}
    .hero{position:relative;padding:76px 0 54px;background:#151815;border-bottom:1px solid var(--line)}
    .hero::before{content:"";position:absolute;inset:0;opacity:.24;background-image:linear-gradient(rgba(199,243,74,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(199,243,74,.08) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
    .hero-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:58px;align-items:center}
    .hero-copy{padding:18px 0}.hero-kicker{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(199,243,74,.4);border-radius:30px;padding:6px 12px;color:var(--lime);font-size:13px;margin-bottom:24px}
    .hero-kicker i{width:7px;height:7px;border-radius:50%;background:var(--coral);display:block}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
    .hero-note{margin-top:20px;color:var(--dim);font-size:13px}
    .index-cover{min-height:390px;position:relative;padding:28px;display:flex;align-items:flex-end;background:#283027;border:1px solid rgba(244,243,236,.22);transform:skewY(-2.5deg);box-shadow:18px 18px 0 var(--lime),var(--shadow);overflow:hidden}
    .index-cover::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 0 48%,rgba(255,118,95,.72) 48.2% 50%,transparent 50.2%),repeating-linear-gradient(90deg,transparent 0 43px,rgba(244,243,236,.08) 44px 45px)}
    .index-cover::after{content:"REGION / 01";position:absolute;right:22px;top:20px;color:var(--lime);font-size:12px;letter-spacing:.12em}
    .cover-copy{position:relative;max-width:350px}.cover-copy strong{display:block;font-size:34px;line-height:1.2;margin:12px 0}.cover-copy span{color:var(--muted);font-size:14px}
    .hero-strip{position:relative;border-top:1px solid var(--line);margin-top:65px;padding-top:18px;display:flex;gap:34px;flex-wrap:wrap;color:var(--dim);font-size:13px}
    .hero-strip b{color:var(--text);margin-right:6px}
    .filter-bar{display:flex;gap:8px;flex-wrap:wrap;padding:8px;background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:38px}
    .filter-bar a{padding:9px 16px;border-radius:8px;color:var(--muted);font-size:14px}.filter-bar a:hover{color:var(--text);background:var(--panel-2)}.filter-bar a.active{background:var(--lime);color:var(--ink);font-weight:800}
    .feature-card{min-height:330px;border:1px solid var(--line);border-radius:var(--radius);padding:31px;display:flex;flex-direction:column;justify-content:flex-end;position:relative;overflow:hidden;background:#293126;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .feature-card::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,118,95,.3),transparent 45%),linear-gradient(0deg,rgba(17,19,17,.94),transparent 70%)}
    .feature-card>*{position:relative}.feature-card:hover{transform:translateY(-4px);border-color:rgba(199,243,74,.55);box-shadow:var(--shadow)}
    .feature-card h3{font-size:28px;margin:14px 0 8px}.feature-card p{max-width:620px;color:var(--muted);margin-bottom:18px}
    .tag{display:inline-flex;align-items:center;min-height:25px;border-radius:6px;padding:2px 8px;background:rgba(199,243,74,.14);color:var(--lime);font-size:12px;font-weight:700;width:max-content}.tag.coral{background:rgba(255,118,95,.15);color:var(--coral)}
    .feature-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--dim);font-size:13px}
    .timeline-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
    .list-card{display:grid;grid-template-columns:150px 1fr;gap:20px;border:1px solid var(--line);border-radius:var(--radius);padding:14px;background:var(--panel);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .list-card:hover{transform:translateY(-4px);border-color:rgba(199,243,74,.55);box-shadow:var(--shadow)}
    .thumb{aspect-ratio:3/2;border-radius:9px;background:#30382d;position:relative;overflow:hidden;border:1px solid var(--line)}
    .thumb::before{content:"";position:absolute;inset:0;background:linear-gradient(145deg,transparent 43%,rgba(199,243,74,.55) 43.5% 46%,transparent 46.5%),linear-gradient(25deg,rgba(255,118,95,.36),transparent 60%)}
    .list-card h3{font-size:19px;margin:10px 0 6px}.list-card p{color:var(--muted);font-size:14px;line-height:1.65;margin-bottom:8px}.list-card time{color:var(--dim);font-size:12px}
    .arrow-link{color:var(--lime);font-size:14px;font-weight:700}.arrow-link:hover{color:var(--text)}
    .notice{margin:50px 0 0;padding:25px 28px;background:var(--paper);color:#191b18;border-left:5px solid var(--coral);border-radius:10px;display:flex;gap:18px;align-items:flex-start}
    .notice strong{display:block;margin-bottom:5px;font-size:17px}.notice p{margin:0;color:#555b52;font-size:14px;line-height:1.75}
    .faq-wrap{max-width:820px;margin:0 auto}.accordion{background:transparent;margin:0}.accordion-item{border:1px solid var(--line);border-bottom:0;background:var(--panel)}.accordion-item:first-child{border-radius:12px 12px 0 0}.accordion-item:last-child{border-bottom:1px solid var(--line);border-radius:0 0 12px 12px}
    .accordion-title{color:var(--text);font-weight:700;font-size:16px;padding:20px 24px;background:transparent}.accordion-title:hover{background:var(--panel-2);color:var(--lime)}.accordion-content{background:var(--panel-2);color:var(--muted);border-left:4px solid var(--lime);padding:16px 24px;font-size:14px;line-height:1.8}
    .cta-panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
    .cta-panel h2{margin-bottom:12px}.cta-panel p{color:var(--muted);font-size:15px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.form-field.full{grid-column:1/-1}.form-field label{display:block;font-size:13px;color:var(--muted);margin-bottom:5px}
    input,select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:#111411;color:var(--text);padding:10px 12px}textarea{min-height:94px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--lime);outline:2px solid rgba(199,243,74,.25)}
    .form-tip{font-size:12px;color:var(--dim);margin:12px 0 0}.form-feedback{font-size:13px;color:var(--coral);min-height:25px;margin-top:8px}
    .site-footer{padding:48px 0 22px;background:#0d0f0d;border-top:1px solid var(--line)}.footer-top{display:flex;justify-content:space-between;gap:30px;padding-bottom:34px}.footer-brand{max-width:480px}.footer-brand p{color:var(--dim);font-size:13px;margin:16px 0 0}.footer-nav{display:flex;gap:20px;flex-wrap:wrap;align-content:flex-start}.footer-nav a{color:var(--muted);font-size:14px}.footer-nav a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:var(--dim);font-size:12px}
    @media(max-width:900px){.nav-wrap{gap:14px}.brand{min-width:0;flex:1}.brand-text{font-size:15px}.segment-nav a{padding:8px 10px}.nav-cta{padding:10px 12px;font-size:13px}.hero-grid{gap:35px}.timeline-grid{grid-template-columns:1fr}.cta-panel{grid-template-columns:1fr}}
    @media(max-width:700px){.grid-container{padding-left:18px;padding-right:18px}.nav-wrap{min-height:68px}.menu-toggle{display:block}.segment-nav{display:none;position:absolute;left:18px;right:18px;top:68px;padding:10px;background:var(--panel);border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.segment-nav.is-open{display:flex}.segment-nav a{width:100%}.nav-cta{display:none}.hero{padding:58px 0 40px}.hero-grid{grid-template-columns:1fr}.index-cover{min-height:300px;transform:none;box-shadow:10px 10px 0 var(--lime)}.hero-strip{margin-top:45px}.section{padding:64px 0}.filter-bar{overflow-x:auto;flex-wrap:nowrap}.filter-bar a{flex:0 0 auto}.list-card{grid-template-columns:112px 1fr;gap:13px;padding:11px}.list-card h3{font-size:17px}.list-card p{font-size:13px}.notice{padding:20px 18px}.cta-panel{padding:25px 20px}.form-grid{grid-template-columns:1fr}.form-field.full{grid-column:auto}.footer-top{display:block}.footer-nav{margin-top:25px;gap:14px}}
    @media(max-width:480px){h1{font-size:37px}.lead{font-size:16px}.hero-actions a,.cta-panel .button-primary{width:100%}.hero-strip{gap:12px 20px}.list-card{grid-template-columns:1fr}.thumb{width:100%}.feature-card{min-height:360px;padding:23px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:8px}}