/* roulang page: index */
:root{
      --ink:#20251f;
      --muted:#6b7069;
      --subtle:#8a8f86;
      --green:#10251e;
      --green-2:#173328;
      --green-3:#224638;
      --cyan:#37d5b0;
      --cyan-soft:#dff8f1;
      --copper:#c9853d;
      --copper-2:#b87532;
      --copper-soft:#fff0db;
      --paper:#f6f3ec;
      --paper-2:#f8f6f0;
      --card:#ffffff;
      --line:#e2ded3;
      --line-dark:rgba(247,241,228,.16);
      --cream:#f7f1e4;
      --shadow:0 16px 38px rgba(25,31,24,.09);
      --shadow-hover:0 20px 45px rgba(25,31,24,.14);
      --radius:22px;
      --radius-lg:30px;
      --radius-sm:14px;
      --container:1200px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:var(--paper);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:var(--cyan);color:var(--green)}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{
      position:absolute;left:-999px;top:12px;z-index:1000;background:var(--cyan);color:var(--green);
      padding:10px 14px;border-radius:12px;font-weight:800
    }
    .skip-link:focus{left:12px}
    .site-header{
      position:sticky;top:0;z-index:99;background:rgba(246,243,236,.9);
      backdrop-filter:blur(18px);border-bottom:1px solid rgba(226,222,211,.78);
      transition:var(--ease)
    }
    .nav-wrap{
      min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px
    }
    .brand{
      display:flex;align-items:center;gap:12px;min-width:max-content;font-weight:900;color:var(--green);
      letter-spacing:-.02em
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;background:linear-gradient(135deg,var(--green),var(--green-3));
      display:grid;place-items:center;color:var(--cyan);box-shadow:0 10px 24px rgba(16,37,30,.18);
      position:relative;overflow:hidden
    }
    .brand-mark:after{
      content:"";position:absolute;inset:auto -8px -10px auto;width:28px;height:28px;border-radius:999px;
      background:rgba(201,133,61,.92)
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.1}
    .brand-text strong{font-size:17px}
    .brand-text span{font-size:12px;color:var(--muted);font-weight:700;margin-top:3px}
    .main-nav{display:flex;align-items:center;justify-content:center;gap:6px;flex:1}
    .main-nav a{
      min-height:42px;display:flex;align-items:center;padding:8px 14px;border-radius:999px;
      color:#374037;font-weight:750;font-size:15px;transition:var(--ease)
    }
    .main-nav a:hover,.main-nav a:focus{background:#e9f3ed;color:var(--green);outline:none}
    .main-nav a.active{background:var(--green);color:var(--cream)}
    .nav-action{
      display:flex;align-items:center;gap:10px
    }
    .menu-toggle{
      display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:14px;color:var(--green)
    }
    .menu-toggle span{display:block;width:20px;height:2px;background:currentColor;margin:5px auto;border-radius:2px}
    .btn{
      min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;
      padding:10px 22px;font-weight:850;border:1px solid transparent;transition:var(--ease);white-space:nowrap
    }
    .btn-primary{background:var(--copper);color:#fff;box-shadow:0 12px 24px rgba(201,133,61,.22)}
    .btn-primary:hover,.btn-primary:focus{background:var(--copper-2);transform:translateY(-2px);box-shadow:0 16px 30px rgba(201,133,61,.28);outline:none}
    .btn-secondary{background:rgba(255,255,255,.92);color:var(--green);border-color:rgba(16,37,30,.2)}
    .btn-secondary:hover,.btn-secondary:focus{background:var(--cyan-soft);border-color:rgba(55,213,176,.6);transform:translateY(-2px);outline:none}
    .btn-ghost{background:transparent;color:var(--cream);border-color:rgba(247,241,228,.26)}
    .btn-ghost:hover,.btn-ghost:focus{background:rgba(247,241,228,.1);border-color:var(--cyan);outline:none}
    .hero{
      position:relative;isolation:isolate;min-height:680px;background:
      linear-gradient(115deg,rgba(16,37,30,.95),rgba(16,37,30,.76) 54%,rgba(16,37,30,.58)),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      color:var(--cream);overflow:hidden
    }
    .hero:before{
      content:"";position:absolute;inset:0;z-index:-1;
      background:
        linear-gradient(90deg,rgba(55,213,176,.08) 1px,transparent 1px),
        linear-gradient(0deg,rgba(55,213,176,.06) 1px,transparent 1px);
      background-size:64px 64px;mask-image:linear-gradient(to bottom,#000,transparent 80%)
    }
    .hero-inner{padding:92px 0 74px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
    .eyebrow{
      display:inline-flex;align-items:center;gap:9px;padding:8px 13px;border:1px solid rgba(55,213,176,.42);
      background:rgba(55,213,176,.1);border-radius:999px;color:#d9fff6;font-size:14px;font-weight:800
    }
    .eyebrow:before{content:"";width:9px;height:9px;background:var(--cyan);border-radius:999px;box-shadow:0 0 0 5px rgba(55,213,176,.14)}
    h1,h2,h3,p{margin-top:0}
    h1{
      font-size:clamp(34px,5vw,54px);line-height:1.14;margin:22px 0 18px;letter-spacing:-.04em;
      max-width:820px
    }
    .hero-lead{font-size:18px;line-height:1.85;color:#d6dfd3;max-width:720px;margin-bottom:26px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      display:inline-flex;align-items:center;gap:7px;min-height:32px;padding:6px 12px;border-radius:999px;
      font-size:13px;font-weight:800;background:rgba(247,241,228,.1);border:1px solid rgba(247,241,228,.18);color:#eef8ed
    }
    .tag.light{background:#eef6ef;color:var(--green);border-color:#dce8dd}
    .tag.cyan{background:var(--cyan-soft);border-color:rgba(55,213,176,.55);color:#075644}
    .tag.copper{background:var(--copper-soft);border-color:#f0d0a7;color:#70410d}
    .hero-panel{
      display:grid;gap:16px;position:relative
    }
    .score-radar{
      background:rgba(247,241,228,.96);color:var(--ink);border-radius:var(--radius-lg);padding:22px;
      box-shadow:0 24px 70px rgba(0,0,0,.25);border:1px solid rgba(247,241,228,.48)
    }
    .score-radar-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
    .score-radar h2{font-size:23px;line-height:1.32;margin:0;color:var(--green)}
    .status-pill{background:var(--green);color:var(--cream);border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900}
    .match-board{
      background:linear-gradient(135deg,#10251e,#1b3b30);border-radius:20px;padding:18px;color:var(--cream);
      display:grid;gap:13px;position:relative;overflow:hidden
    }
    .match-board:after{content:"";position:absolute;right:-30px;top:-42px;width:120px;height:120px;border:1px solid rgba(55,213,176,.22);border-radius:999px}
    .team-row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;position:relative}
    .team-name{display:flex;align-items:center;gap:10px;font-weight:850}
    .team-icon{width:32px;height:32px;border-radius:12px;background:rgba(55,213,176,.14);display:grid;place-items:center;color:var(--cyan);font-weight:950}
    .score-num{font-size:28px;font-weight:950;color:var(--cyan)}
    .board-divider{height:1px;background:rgba(247,241,228,.16)}
    .board-note{font-size:13px;color:#c8d3c6}
    .mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .mini-card{
      background:rgba(247,241,228,.12);border:1px solid rgba(247,241,228,.18);border-radius:20px;padding:16px;color:var(--cream)
    }
    .mini-card strong{display:block;font-size:22px;color:var(--cyan);line-height:1.2}
    .mini-card span{display:block;font-size:13px;color:#c8d3c6;margin-top:5px}
    main{overflow:hidden}
    .section{padding:78px 0}
    .section.compact{padding:58px 0}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
    .section-kicker{
      color:var(--copper);font-weight:950;font-size:14px;margin-bottom:8px;display:block
    }
    .section-title{font-size:clamp(27px,3.2vw,38px);line-height:1.22;margin:0;color:var(--green);letter-spacing:-.03em}
    .section-desc{color:var(--muted);font-size:16px;max-width:700px;margin:10px 0 0}
    .data-strip{
      margin-top:-46px;position:relative;z-index:5
    }
    .data-grid{
      display:grid;grid-template-columns:repeat(4,1fr);gap:16px
    }
    .data-card{
      background:var(--card);border:1px solid var(--line);border-radius:22px;padding:21px;box-shadow:var(--shadow);
      transition:var(--ease)
    }
    .data-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .data-icon{
      width:42px;height:42px;border-radius:15px;background:var(--cyan-soft);display:grid;place-items:center;color:#075644;
      font-size:20px;margin-bottom:13px
    }
    .data-card h3{font-size:18px;margin:0 0 7px;color:var(--green)}
    .data-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
    .review-layout{display:grid;grid-template-columns:.94fr 1.06fr;gap:30px;align-items:stretch}
    .image-card{
      position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:430px;background:var(--green);box-shadow:var(--shadow)
    }
    .image-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform .45s ease}
    .image-card:hover img{transform:scale(1.035)}
    .image-card:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(16,37,30,.82),rgba(16,37,30,.08))}
    .image-caption{position:absolute;left:24px;right:24px;bottom:24px;z-index:2;color:var(--cream)}
    .image-caption .badge{margin-bottom:12px}
    .image-caption h3{font-size:25px;line-height:1.3;margin:0 0 8px}
    .image-caption p{margin:0;color:#d6dfd3}
    .badge{
      display:inline-flex;align-items:center;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:900;
      background:var(--copper);color:#fff
    }
    .timeline{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)
    }
    .timeline-item{
      position:relative;display:grid;grid-template-columns:84px 1fr;gap:18px;padding:0 0 23px
    }
    .timeline-item:not(:last-child):before{
      content:"";position:absolute;left:93px;top:28px;bottom:0;width:2px;background:#dbe9e3
    }
    .time-label{font-size:13px;font-weight:950;color:var(--copper);padding-top:2px}
    .timeline-body{position:relative;padding-left:24px}
    .timeline-body:before{
      content:"";position:absolute;left:-4px;top:6px;width:12px;height:12px;border-radius:999px;background:var(--cyan);
      box-shadow:0 0 0 5px rgba(55,213,176,.18)
    }
    .timeline-item.highlight .timeline-body{
      background:#fffaf1;border:1px solid #efd6b6;border-radius:18px;padding:16px 18px 16px 24px;margin-top:-10px
    }
    .timeline-item.highlight .timeline-body:before{left:-5px;top:20px;background:var(--copper)}
    .timeline h3{font-size:19px;margin:0 0 6px;color:var(--green)}
    .timeline p{margin:0;color:var(--muted);font-size:15px}
    .score-section{background:var(--paper-2)}
    .score-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
    .demo-board{
      border-radius:var(--radius-lg);background:var(--green);color:var(--cream);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden
    }
    .demo-board:before{
      content:"页面展示示例";position:absolute;right:18px;top:18px;border:1px solid rgba(55,213,176,.38);
      color:#d9fff6;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900
    }
    .board-title{font-size:22px;font-weight:950;margin-bottom:20px}
    .versus{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}
    .side{
      background:rgba(247,241,228,.08);border:1px solid rgba(247,241,228,.14);border-radius:20px;padding:20px;text-align:center
    }
    .side b{display:block;font-size:18px;margin-bottom:9px}
    .side strong{font-size:44px;line-height:1;color:var(--cyan)}
    .vs{font-weight:950;color:var(--copper)}
    .metric-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
    .metric{font-size:13px;border-radius:999px;border:1px solid rgba(247,241,228,.18);padding:6px 10px;color:#d6dfd3}
    .explain-list{display:grid;gap:14px}
    .explain-item{
      background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;display:grid;grid-template-columns:44px 1fr;gap:15px;
      box-shadow:0 8px 24px rgba(25,31,24,.055);transition:var(--ease)
    }
    .explain-item:hover{transform:translateX(3px);box-shadow:var(--shadow)}
    .explain-icon{width:44px;height:44px;border-radius:16px;background:var(--cyan-soft);display:grid;place-items:center;color:#075644;font-weight:950}
    .explain-item h3{font-size:18px;margin:0 0 5px;color:var(--green)}
    .explain-item p{font-size:14px;color:var(--muted);margin:0}
    .steps-wrap{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)
    }
    .steps{
      display:grid;grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:step
    }
    .step{
      position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:20px;padding:52px 16px 18px;min-height:172px
    }
    .step:not(:last-child):after{
      content:"";position:absolute;right:-14px;top:34px;width:14px;height:2px;background:#d8d1c3
    }
    .step:before{
      counter-increment:step;content:counter(step);position:absolute;top:16px;left:16px;width:28px;height:28px;border-radius:999px;
      background:var(--copper);color:#fff;display:grid;place-items:center;font-weight:950
    }
    .step h3{font-size:17px;margin:0 0 7px;color:var(--green)}
    .step p{font-size:14px;color:var(--muted);margin:0;line-height:1.6}
    .check-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
    .check-card,.risk-box{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)
    }
    .check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
    .check-list li{
      display:grid;grid-template-columns:30px 1fr;gap:12px;align-items:start;padding:14px;border-radius:16px;background:var(--paper-2)
    }
    .check-list li:before{
      content:"✓";width:30px;height:30px;border-radius:999px;background:var(--cyan-soft);color:#08745d;display:grid;place-items:center;font-weight:950
    }
    .check-list strong{display:block;color:var(--green);margin-bottom:2px}
    .check-list span{color:var(--muted);font-size:14px}
    .risk-box{background:linear-gradient(180deg,#fff7ec,#fff);border-color:#efdbbd}
    .risk-box h3{font-size:24px;color:#78470f;margin:0 0 12px}
    .risk-box p{color:#6e5b43;margin-bottom:16px}
    .risk-points{display:grid;gap:11px;margin:0;padding:0;list-style:none}
    .risk-points li{display:flex;gap:10px;align-items:flex-start;color:#504435;font-weight:750}
    .risk-points li:before{content:"!";flex:0 0 24px;height:24px;border-radius:999px;background:var(--copper);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:950}
    .content-feature{
      display:grid;grid-template-columns:1.05fr .95fr;gap:20px
    }
    .feature-article,.article-card{
      background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--ease)
    }
    .feature-article:hover,.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
    .article-image{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--green),var(--green-3))}
    .feature-article .article-image{height:300px}
    .article-card .article-image{width:150px;min-height:132px;flex:0 0 150px}
    .article-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
    .feature-article:hover img,.article-card:hover img{transform:scale(1.04)}
    .article-body{padding:22px}
    .article-body h3{font-size:22px;line-height:1.35;margin:10px 0;color:var(--green)}
    .article-body p{color:var(--muted);font-size:15px;margin:0 0 14px}
    .meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--subtle);font-size:13px}
    .article-list{display:grid;gap:14px}
    .article-card{display:flex}
    .article-card .article-body{padding:18px}
    .article-card h3{font-size:18px;margin:8px 0 6px}
    .article-card p{font-size:14px;line-height:1.62}
    .evidence-band{
      background:var(--green);color:var(--cream);border-radius:var(--radius-lg);padding:30px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
      position:relative;overflow:hidden
    }
    .evidence-band:before{
      content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.13
    }
    .evidence-band > *{position:relative}
    .evidence-band h2{font-size:30px;line-height:1.28;margin:0 0 8px}
    .evidence-band p{margin:0;color:#c8d3c6;max-width:760px}
    .evidence-stats{display:flex;gap:12px}
    .evidence-stat{min-width:118px;background:rgba(247,241,228,.1);border:1px solid rgba(247,241,228,.16);border-radius:18px;padding:14px;text-align:center}
    .evidence-stat strong{display:block;font-size:25px;color:var(--cyan)}
    .evidence-stat span{font-size:12px;color:#d6dfd3}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    details.faq-item{
      background:#fff;border:1px solid var(--line);border-radius:20px;padding:0;box-shadow:0 8px 22px rgba(25,31,24,.055);
      overflow:hidden
    }
    details.faq-item[open]{border-left:4px solid var(--cyan)}
    .faq-item summary{
      list-style:none;cursor:pointer;padding:18px 20px;font-weight:900;color:var(--green);display:flex;align-items:center;justify-content:space-between;gap:14px
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:22px;color:var(--copper);line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-item p{padding:0 20px 20px;margin:0;color:var(--muted);font-size:15px}
    .cta{
      padding:70px 0;background:
        linear-gradient(135deg,rgba(16,37,30,.96),rgba(18,45,35,.92)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:var(--cream)
    }
    .cta-box{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .cta h2{font-size:36px;line-height:1.25;margin:0 0 10px}
    .cta p{color:#d6dfd3;margin:0;max-width:760px}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .site-footer{background:#0c1d17;color:var(--cream);padding:54px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:34px;padding-bottom:32px;border-bottom:1px solid var(--line-dark)}
    .footer-brand{font-weight:950;font-size:19px;margin-bottom:12px}
    .footer-text{color:#c8d3c6;font-size:14px;margin:0;max-width:460px}
    .footer-col h3{font-size:16px;margin:0 0 14px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#c8d3c6;font-size:14px;transition:var(--ease)}
    .footer-links a:hover,.footer-links a:focus{color:var(--cyan);outline:none}
    .footer-warning{
      background:rgba(201,133,61,.12);border:1px solid rgba(201,133,61,.28);border-radius:18px;padding:14px;color:#f1d9b8;font-size:14px
    }
    .copyright{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#9eab9c;font-size:13px;padding-top:22px}
    .mobile-panel{display:none}
    @media (max-width:1024px){
      .main-nav{display:none}
      .menu-toggle{display:block}
      .nav-action .btn{display:none}
      .mobile-panel{
        display:none;position:absolute;left:20px;right:20px;top:76px;background:#fff;border:1px solid var(--line);
        border-radius:22px;padding:14px;box-shadow:var(--shadow)
      }
      .site-header.menu-open .mobile-panel{display:grid;gap:8px}
      .mobile-panel a{padding:12px 14px;border-radius:14px;font-weight:850;color:var(--green)}
      .mobile-panel a.active,.mobile-panel a:hover{background:var(--cyan-soft)}
      .mobile-note{font-size:13px;color:var(--muted);padding:10px 14px;border-top:1px solid var(--line)}
      .hero-inner,.review-layout,.score-layout,.check-layout,.content-feature,.cta-box{grid-template-columns:1fr}
      .data-grid{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:repeat(2,1fr)}
      .step:not(:last-child):after{display:none}
      .evidence-band{grid-template-columns:1fr}
      .evidence-stats{flex-wrap:wrap}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:68px}
      .brand-text strong{font-size:15px}
      .brand-text span{display:none}
      .brand-mark{width:38px;height:38px;border-radius:13px}
      .mobile-panel{top:68px;left:14px;right:14px}
      .hero{min-height:auto}
      .hero-inner{padding:62px 0 68px}
      h1{font-size:clamp(31px,9vw,40px)}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .mini-grid,.data-grid,.faq-grid,.footer-grid{grid-template-columns:1fr}
      .section{padding:54px 0}
      .section-head{display:block}
      .image-card{min-height:340px}
      .timeline-item{grid-template-columns:62px 1fr;gap:12px}
      .timeline-item:not(:last-child):before{left:70px}
      .versus{grid-template-columns:1fr;gap:10px}
      .vs{text-align:center}
      .steps{grid-template-columns:1fr}
      .article-card{display:block}
      .article-card .article-image{width:100%;height:190px}
      .feature-article .article-image{height:230px}
      .evidence-stats{display:grid;grid-template-columns:1fr 1fr}
      .cta h2{font-size:29px}
      .cta-actions .btn{width:100%}
      .copyright{display:block}
    }
    @media (max-width:520px){
      .score-radar,.timeline,.demo-board,.steps-wrap,.check-card,.risk-box{padding:18px;border-radius:22px}
      .data-card{padding:18px}
      .section-title{font-size:27px}
      .evidence-stats{grid-template-columns:1fr}
      .tag-cloud{gap:8px}
    }

/* roulang page: category1 */
:root{
      --ink:#20251f;
      --muted:#6b7069;
      --deep:#10251e;
      --deep-2:#17352b;
      --cyan:#37d5b0;
      --cyan-soft:#dff8f1;
      --copper:#c9853d;
      --copper-soft:#fbecd9;
      --paper:#f8f6f0;
      --paper-2:#f0eadf;
      --card:#ffffff;
      --line:#e2ded3;
      --cream:#f7f1e4;
      --shadow:0 16px 40px rgba(25,31,24,.10);
      --shadow-soft:0 10px 26px rgba(25,31,24,.07);
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1200px;
      --nav-h:74px;
      --ease:.22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 0%, rgba(55,213,176,.08), transparent 30%),
        linear-gradient(180deg,#fbfaf6 0%,var(--paper) 42%,#f5f1e8 100%);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.75;
      font-size:16px;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(55,213,176,.55);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.92);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(226,222,211,.86);
      box-shadow:0 8px 24px rgba(16,37,30,.05);
    }
    .header-inner{
      height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:240px;
      font-weight:850;
      letter-spacing:-.02em;
      color:var(--deep);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      color:var(--deep);
      background:
        linear-gradient(135deg,var(--cyan),rgba(55,213,176,.42)),
        linear-gradient(180deg,#fff,transparent);
      box-shadow:0 10px 24px rgba(55,213,176,.22);
      border:1px solid rgba(16,37,30,.12);
      font-size:15px;
      font-weight:900;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-title{font-size:18px}
    .brand-sub{font-size:12px;color:var(--muted);font-weight:650;margin-top:3px}
    .main-nav{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(226,222,211,.76);
      border-radius:999px;
      background:#fff;
    }
    .main-nav a{
      min-height:40px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:8px 16px;
      border-radius:999px;
      color:#3e463f;
      font-weight:700;
      transition:background var(--ease),color var(--ease),transform var(--ease);
      white-space:nowrap;
    }
    .main-nav a:hover{background:var(--cyan-soft);color:var(--deep);transform:translateY(-1px)}
    .main-nav a.active{background:var(--deep);color:var(--cream)}
    .header-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:9px 18px;
      border-radius:999px;
      background:var(--copper);
      color:#fff8ec;
      font-weight:800;
      box-shadow:0 10px 22px rgba(201,133,61,.22);
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease);
      white-space:nowrap;
    }
    .header-action:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,133,61,.30);background:#b97733}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--line);
      background:#fff;
      border-radius:14px;
      color:var(--deep);
    }
    .menu-toggle span{
      display:block;
      width:20px;
      height:2px;
      background:var(--deep);
      margin:5px auto;
      border-radius:9px;
    }
    .page-hero{
      position:relative;
      overflow:hidden;
      padding:54px 0 46px;
      border-bottom:1px solid rgba(226,222,211,.88);
      background:
        linear-gradient(90deg,rgba(248,246,240,.95) 0%,rgba(248,246,240,.86) 52%,rgba(16,37,30,.82) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    }
    .page-hero:before{
      content:"";
      position:absolute;
      inset:auto -8% -64px 45%;
      height:150px;
      background:repeating-linear-gradient(90deg,rgba(55,213,176,.16) 0 2px,transparent 2px 28px);
      transform:skewY(-8deg);
      opacity:.55;
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);
      gap:34px;
      align-items:center;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:9px;
      margin-bottom:18px;
      color:#697169;
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb a:hover{color:var(--deep)}
    .crumb-sep{color:#9c988e}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(55,213,176,.13);
      color:var(--deep);
      border:1px solid rgba(55,213,176,.32);
      font-size:14px;
      font-weight:800;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 5px rgba(55,213,176,.16);
    }
    h1{
      margin:18px 0 16px;
      max-width:820px;
      font-size:clamp(34px,4.2vw,50px);
      line-height:1.18;
      letter-spacing:-.04em;
      color:var(--deep);
    }
    .hero-desc{
      max-width:820px;
      margin:0;
      font-size:18px;
      color:#4f574f;
      line-height:1.85;
    }
    .hero-note{
      margin-top:22px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:6px 12px;
      border-radius:999px;
      background:#fff;
      border:1px solid var(--line);
      color:#485047;
      font-size:14px;
      font-weight:750;
      transition:background var(--ease),border-color var(--ease),transform var(--ease),color var(--ease);
    }
    .tag:hover{background:var(--cyan-soft);border-color:rgba(55,213,176,.48);color:var(--deep);transform:translateY(-1px)}
    .rule-card{
      background:rgba(255,255,255,.94);
      border:1px solid rgba(255,255,255,.7);
      border-radius:var(--radius-lg);
      padding:24px;
      box-shadow:var(--shadow);
      backdrop-filter:blur(8px);
    }
    .rule-card h2{
      margin:0 0 14px;
      font-size:22px;
      line-height:1.35;
      color:var(--deep);
    }
    .mini-score{
      display:grid;
      gap:12px;
      margin-top:16px;
    }
    .mini-row{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      background:#f6f3ec;
      border:1px solid var(--line);
      color:#384139;
      font-weight:750;
    }
    .mini-row span:last-child{color:var(--deep)}
    .section{padding:72px 0}
    .section.tight{padding-top:52px}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:flex-end;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      margin:0 0 8px;
      color:var(--copper);
      font-size:14px;
      font-weight:850;
    }
    .section h2{
      margin:0;
      font-size:clamp(28px,3vw,36px);
      line-height:1.25;
      letter-spacing:-.03em;
      color:var(--deep);
    }
    .section-intro{
      margin:10px 0 0;
      max-width:760px;
      color:var(--muted);
      font-size:17px;
    }
    .filter-panel{
      margin-top:-24px;
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .filters{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:thin;
      padding-bottom:2px;
    }
    .filter-chip{
      flex:0 0 auto;
      border:1px solid var(--line);
      background:#fbfaf6;
      color:#475046;
      border-radius:999px;
      padding:9px 14px;
      min-height:40px;
      font-size:14px;
      font-weight:800;
      transition:background var(--ease),color var(--ease),border-color var(--ease);
    }
    .filter-chip:hover{background:var(--cyan-soft);border-color:rgba(55,213,176,.5);color:var(--deep)}
    .filter-chip.active{background:var(--deep);border-color:var(--deep);color:var(--cream)}
    .search-box{
      min-width:270px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 14px;
      height:44px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#fff;
      color:#8b8f88;
    }
    .search-box input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--ink);
    }
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:28px;
      align-items:start;
    }
    .featured-card{
      display:grid;
      grid-template-columns:42% 1fr;
      gap:24px;
      padding:20px;
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:#fff;
      box-shadow:var(--shadow-soft);
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
      margin-bottom:18px;
      overflow:hidden;
    }
    .featured-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(55,213,176,.42)}
    .media{
      position:relative;
      overflow:hidden;
      border-radius:18px;
      min-height:230px;
      background:linear-gradient(135deg,var(--deep),#214638);
    }
    .media img{
      width:100%;
      height:100%;
      object-fit:cover;
      position:absolute;
      inset:0;
      transition:transform .5s ease;
    }
    .featured-card:hover .media img,.article-item:hover .thumb img{transform:scale(1.04)}
    .media:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent 45%,rgba(16,37,30,.74));
    }
    .media-badge{
      position:absolute;
      left:14px;
      bottom:14px;
      z-index:2;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(247,241,228,.92);
      color:var(--deep);
      font-size:13px;
      font-weight:850;
    }
    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin-bottom:12px;
      color:#777d75;
      font-size:13px;
      font-weight:750;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--cyan-soft);
      border:1px solid rgba(55,213,176,.4);
      color:var(--deep);
      font-weight:850;
      font-size:13px;
    }
    .badge.copper{background:var(--copper-soft);border-color:rgba(201,133,61,.35);color:#794b1f}
    .featured-card h3,.article-item h3{
      margin:0 0 10px;
      font-size:24px;
      line-height:1.35;
      letter-spacing:-.02em;
      color:var(--ink);
      transition:color var(--ease);
    }
    .article-item h3{font-size:20px}
    .featured-card:hover h3,.article-item:hover h3{color:var(--deep)}
    .card-copy{margin:0 0 18px;color:var(--muted);line-height:1.72}
    .read-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      font-weight:850;
      color:var(--deep);
    }
    .read-link:hover{color:#1ba98c}
    .read-link:after{content:"→";transition:transform var(--ease)}
    .read-link:hover:after{transform:translateX(3px)}
    .article-list{
      display:grid;
      gap:14px;
    }
    .article-item{
      display:grid;
      grid-template-columns:168px 1fr;
      gap:18px;
      padding:16px;
      border-radius:22px;
      border:1px solid var(--line);
      background:#fff;
      box-shadow:0 8px 20px rgba(25,31,24,.045);
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
    }
    .article-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft);border-color:rgba(55,213,176,.38)}
    .thumb{
      min-height:126px;
      border-radius:16px;
      overflow:hidden;
      background:linear-gradient(135deg,var(--deep),#315847);
    }
    .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
    .risk-strip{
      display:flex;
      gap:14px;
      align-items:flex-start;
      padding:18px 20px;
      border-radius:22px;
      background:linear-gradient(135deg,var(--copper-soft),#fff8ed);
      border:1px solid rgba(201,133,61,.26);
      color:#5b4228;
    }
    .risk-strip strong{color:#744617}
    .risk-icon{
      flex:0 0 42px;
      width:42px;height:42px;
      display:grid;place-items:center;
      border-radius:14px;
      background:#fff;
      color:var(--copper);
      font-weight:900;
      box-shadow:0 8px 18px rgba(201,133,61,.16);
    }
    .sidebar{
      position:sticky;
      top:calc(var(--nav-h) + 20px);
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:22px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .side-card.dark{
      background:linear-gradient(145deg,var(--deep),#19362d);
      color:var(--cream);
      border-color:rgba(255,255,255,.12);
    }
    .side-card.warn{
      background:linear-gradient(145deg,#fff6e9,#fbe7ce);
      border-color:rgba(201,133,61,.28);
    }
    .side-card h3{
      margin:0 0 14px;
      font-size:20px;
      line-height:1.35;
      color:inherit;
    }
    .keyword-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .side-list{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .side-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#4f574f;
    }
    .side-card.dark .side-list li{color:#d3ddcf}
    .check{
      flex:0 0 20px;
      width:20px;height:20px;
      margin-top:4px;
      border-radius:50%;
      display:grid;place-items:center;
      background:var(--cyan-soft);
      color:var(--deep);
      font-size:12px;
      font-weight:900;
    }
    .warn-text{margin:0;color:#654728}
    .reading-links a{
      display:block;
      padding:11px 0;
      border-bottom:1px solid rgba(226,222,211,.8);
      color:#495149;
      font-weight:750;
      transition:color var(--ease),padding-left var(--ease);
    }
    .reading-links a:last-child{border-bottom:0}
    .reading-links a:hover{color:var(--deep);padding-left:4px}
    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .process-card{
      position:relative;
      padding:22px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .process-num{
      width:38px;height:38px;
      display:grid;place-items:center;
      border-radius:50%;
      background:var(--copper);
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .process-card h3{margin:0 0 8px;font-size:20px;color:var(--deep)}
    .process-card p{margin:0;color:var(--muted)}
    .pagination{
      margin-top:24px;
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      flex-wrap:wrap;
    }
    .page-btn{
      min-width:42px;
      height:42px;
      padding:0 14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:999px;
      border:1px solid var(--line);
      background:#fff;
      font-weight:850;
      color:#4c554c;
      transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease);
    }
    .page-btn:hover{background:var(--cyan-soft);border-color:rgba(55,213,176,.46);transform:translateY(-1px)}
    .page-btn.current{background:var(--deep);color:var(--cream);border-color:var(--deep)}
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    details.faq-item{
      border:1px solid var(--line);
      border-radius:20px;
      background:#fff;
      box-shadow:0 8px 22px rgba(25,31,24,.05);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      font-weight:850;
      color:var(--deep);
      display:flex;
      justify-content:space-between;
      gap:12px;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:26px;height:26px;
      flex:0 0 26px;
      display:grid;place-items:center;
      border-radius:50%;
      background:var(--cyan-soft);
      color:var(--deep);
      font-weight:900;
    }
    .faq-item[open] summary{border-left:4px solid var(--cyan);padding-left:16px}
    .faq-item[open] summary:after{content:"−";background:var(--deep);color:var(--cream)}
    .faq-item p{
      margin:0;
      padding:0 20px 20px;
      color:var(--muted);
    }
    .cta{
      padding:0 0 80px;
    }
    .cta-box{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      padding:34px;
      background:
        linear-gradient(135deg,rgba(16,37,30,.96),rgba(23,53,43,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      color:var(--cream);
      box-shadow:0 18px 44px rgba(16,37,30,.18);
    }
    .cta-box:before{
      content:"";
      position:absolute;
      inset:0;
      background:repeating-linear-gradient(120deg,rgba(255,255,255,.06) 0 1px,transparent 1px 28px);
      opacity:.45;
    }
    .cta-content{
      position:relative;
      display:flex;
      justify-content:space-between;
      gap:24px;
      align-items:center;
    }
    .cta h2{margin:0 0 8px;font-size:30px;line-height:1.25;color:var(--cream)}
    .cta p{margin:0;max-width:720px;color:#cfd9cc}
    .btn-group{display:flex;gap:12px;flex-wrap:wrap}
    .btn{
      min-height:46px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:11px 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:850;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--copper);
      color:#fffaf0;
      box-shadow:0 12px 24px rgba(201,133,61,.24);
    }
    .btn-primary:hover{transform:translateY(-2px);background:#b97733;box-shadow:0 16px 30px rgba(201,133,61,.32)}
    .btn-ghost{
      border-color:rgba(247,241,228,.38);
      color:var(--cream);
      background:rgba(255,255,255,.06);
    }
    .btn-ghost:hover{transform:translateY(-2px);background:rgba(55,213,176,.13);border-color:rgba(55,213,176,.5)}
    .site-footer{
      background:var(--deep);
      color:var(--cream);
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .7fr 1fr;
      gap:34px;
      padding-bottom:28px;
      border-bottom:1px solid rgba(247,241,228,.14);
    }
    .footer-brand{
      font-size:20px;
      font-weight:900;
      margin-bottom:10px;
    }
    .footer-text{
      margin:0;
      color:#c8d3c6;
      max-width:560px;
    }
    .footer-col h3{
      margin:0 0 12px;
      color:#fff6e7;
      font-size:17px;
    }
    .footer-links{
      display:grid;
      gap:8px;
    }
    .footer-links a{
      color:#c8d3c6;
      transition:color var(--ease),transform var(--ease);
    }
    .footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
    .footer-warning{
      color:#e7d4b9;
      background:rgba(201,133,61,.12);
      border:1px solid rgba(201,133,61,.25);
      border-radius:16px;
      padding:14px;
      line-height:1.7;
    }
    .copyright{
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:#aebdae;
      font-size:13px;
    }
    @media (max-width:1024px){
      .header-action{display:none}
      .brand{min-width:auto}
      .hero-grid,.content-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .filter-panel{align-items:stretch;flex-direction:column}
      .search-box{min-width:0;width:100%}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:768px){
      :root{--nav-h:auto}
      .container{width:min(100% - 28px,var(--container))}
      .header-inner{height:auto;min-height:68px;flex-wrap:wrap;padding:12px 0}
      .menu-toggle{display:block}
      .main-nav{
        order:3;
        display:none;
        width:100%;
        border-radius:18px;
        align-items:stretch;
        padding:8px;
      }
      .site-header.is-open .main-nav{display:grid}
      .main-nav a{justify-content:flex-start;border-radius:12px}
      .brand-title{font-size:16px}
      .brand-sub{display:none}
      .page-hero{padding:38px 0}
      .hero-grid{gap:22px}
      .rule-card{padding:20px}
      .section{padding:52px 0}
      .section-head{display:block}
      .featured-card{grid-template-columns:1fr}
      .media{min-height:210px}
      .article-item{grid-template-columns:128px 1fr;gap:14px}
      .article-item h3{font-size:18px}
      .card-copy{font-size:15px}
      .sidebar{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .cta-content{display:block}
      .btn-group{margin-top:20px}
      .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .page-hero{background:linear-gradient(180deg,rgba(248,246,240,.95),rgba(248,246,240,.92)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
      h1{font-size:32px}
      .hero-desc{font-size:16px}
      .filter-panel{padding:14px;border-radius:18px}
      .article-item{grid-template-columns:1fr}
      .thumb{min-height:180px}
      .process-grid{grid-template-columns:1fr}
      .cta-box{padding:24px;border-radius:24px}
      .copyright{display:grid}
      .section h2{font-size:27px}
    }