/* roulang page: index */
:root{
      --color-primary:#1F3D36;
      --color-primary-dark:#142923;
      --color-primary-soft:#EAF2EE;
      --color-bg:#F4EFE6;
      --color-surface:#FFFDF8;
      --color-surface-2:#F9F5EE;
      --color-text:#222222;
      --color-muted:#666666;
      --color-light:#8A8176;
      --color-border:#E5DED3;
      --color-accent:#C9822B;
      --color-accent-soft:#FFF2D9;
      --color-warning:#8A3A2D;
      --shadow-sm:0 8px 24px rgba(31,61,54,.08);
      --shadow-md:0 18px 48px rgba(31,61,54,.13);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:24px;
      --radius-xl:34px;
      --container:1200px;
      --section:88px;
      --ease:all .22s ease;
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 12% 10%, rgba(201,130,43,.10), transparent 28%),
        radial-gradient(circle at 88% 4%, rgba(31,61,54,.10), transparent 32%),
        var(--color-bg);
      line-height:1.82;
      font-size:16.5px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer;background:none}
    ::selection{background:rgba(201,130,43,.24)}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .section{padding:var(--section) 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--color-primary);font-size:13px;font-weight:700;
      letter-spacing:.04em;background:rgba(31,61,54,.08);
      border:1px solid rgba(31,61,54,.12);
      padding:7px 12px;border-radius:999px;
    }
    .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--color-accent)}
    .section-head{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin-bottom:34px}
    .section-title{max-width:760px}
    h1,h2,h3{line-height:1.22;color:var(--color-primary-dark);font-weight:800;letter-spacing:-.02em}
    h1{font-size:clamp(32px,5vw,52px);margin:18px 0 20px}
    h2{font-size:clamp(28px,3.2vw,36px);margin-top:14px}
    h3{font-size:22px}
    p{color:var(--color-muted)}
    .lead{font-size:18px;line-height:1.88;color:#4c4a45;max-width:760px}
    .muted{color:var(--color-muted)}
    .small{font-size:14px;color:var(--color-light)}
    .skip-link{
      position:absolute;left:-999px;top:12px;z-index:99;
      background:var(--color-primary);color:#fff;padding:10px 14px;border-radius:999px;
    }
    .skip-link:focus{left:16px;outline:3px solid rgba(201,130,43,.45)}

    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,253,248,.92);
      backdrop-filter:saturate(160%) blur(14px);
      border-bottom:1px solid rgba(229,222,211,.82);
      transition:var(--ease);
    }
    .site-header.is-scrolled{box-shadow:0 10px 28px rgba(31,61,54,.08)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;background:linear-gradient(145deg,var(--color-primary),#315d52);
      color:#fff;display:grid;place-items:center;box-shadow:0 10px 20px rgba(31,61,54,.18);flex:0 0 auto;
    }
    .brand-mark svg{width:23px;height:23px}
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-text strong{font-size:16px;color:var(--color-primary-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px}
    .brand-text span{font-size:12px;color:var(--color-accent);font-weight:700;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-links a{
      color:#3f4743;font-weight:650;font-size:15px;
      padding:10px 13px;border-radius:999px;transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{background:var(--color-primary-soft);color:var(--color-primary)}
    .nav-links a:focus-visible,.btn:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(201,130,43,.36);outline-offset:3px;
    }
    .header-cta{margin-left:8px}
    .mobile-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      border:1px solid var(--color-border);background:var(--color-surface);
      align-items:center;justify-content:center;
    }
    .mobile-toggle span,.mobile-toggle span:before,.mobile-toggle span:after{
      display:block;width:20px;height:2px;background:var(--color-primary);border-radius:10px;transition:var(--ease);content:"";
    }
    .mobile-toggle span:before{transform:translateY(-7px)}
    .mobile-toggle span:after{transform:translateY(5px)}
    .mobile-toggle.is-open span{background:transparent}
    .mobile-toggle.is-open span:before{transform:rotate(45deg)}
    .mobile-toggle.is-open span:after{transform:rotate(-45deg) translate(1px,-1px)}

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border-radius:999px;padding:12px 18px;
      font-weight:800;line-height:1.2;transition:var(--ease);
      border:1px solid transparent;white-space:nowrap;
    }
    .btn-primary{
      color:#FFF8ED;background:var(--color-primary);
      box-shadow:0 12px 26px rgba(31,61,54,.2);
    }
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(31,61,54,.28)}
    .btn-secondary{background:rgba(255,253,248,.78);border-color:var(--color-border);color:var(--color-primary)}
    .btn-secondary:hover{background:var(--color-primary-soft);border-color:rgba(31,61,54,.34);transform:translateY(-2px)}
    .btn-ghost{padding:10px 14px;border-color:var(--color-border);color:var(--color-primary);background:#fff}
    .btn-ghost:hover{border-color:var(--color-primary);background:var(--color-primary-soft)}

    .hero{
      position:relative;overflow:hidden;
      padding:86px 0 42px;
    }
    .hero:before{
      content:"";position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(244,239,230,.96) 0%,rgba(244,239,230,.88) 42%,rgba(244,239,230,.70) 100%),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
      z-index:-2;
    }
    .hero:after{
      content:"";position:absolute;right:-80px;top:80px;width:360px;height:360px;
      border-radius:50%;background:rgba(201,130,43,.12);filter:blur(4px);z-index:-1;
    }
    .hero-grid{
      display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);
      gap:54px;align-items:center;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 24px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
    .badge{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;padding:7px 11px;font-size:13px;font-weight:700;
      color:var(--color-primary);background:rgba(255,253,248,.74);
      border:1px solid rgba(229,222,211,.95);
    }
    .badge.warn{color:var(--color-warning);background:#FFF4EA;border-color:#F0D8C2}
    .hero-visual{
      position:relative;min-height:460px;border-radius:var(--radius-xl);
      background:linear-gradient(160deg,rgba(255,253,248,.82),rgba(234,242,238,.86));
      border:1px solid rgba(229,222,211,.92);
      box-shadow:var(--shadow-md);
      overflow:hidden;padding:28px;
    }
    .hero-visual:before{
      content:"";position:absolute;inset:0;
      background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      opacity:.16;filter:grayscale(35%);transform:scale(1.06);
    }
    .document-stack{position:relative;z-index:1;height:100%}
    .doc-card{
      position:absolute;background:rgba(255,253,248,.94);
      border:1px solid var(--color-border);border-radius:22px;
      box-shadow:var(--shadow-sm);padding:20px;
    }
    .doc-card.main{left:8px;right:58px;top:18px;min-height:230px}
    .doc-card.side{right:8px;top:182px;width:230px}
    .doc-card.note{left:34px;bottom:24px;width:270px;background:#FFF7E8}
    .doc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
    .doc-icon{
      width:38px;height:38px;border-radius:14px;display:grid;place-items:center;
      background:var(--color-primary-soft);color:var(--color-primary);
    }
    .line{height:10px;border-radius:999px;background:#EEE7DC;margin:12px 0}
    .line.w80{width:80%}.line.w60{width:60%}.line.w42{width:42%}
    .check-list{display:grid;gap:11px;margin-top:16px}
    .check-item{display:flex;gap:10px;align-items:flex-start;color:#4E5A55;font-size:14px}
    .check-dot{width:18px;height:18px;border-radius:50%;background:var(--color-primary);color:#fff;display:grid;place-items:center;font-size:12px;flex:0 0 auto;margin-top:3px}
    .risk-meter{display:flex;gap:7px;margin-top:14px}
    .risk-meter i{height:8px;flex:1;border-radius:999px;background:#E8D9C8}
    .risk-meter i:nth-child(-n+2){background:var(--color-accent)}
    .risk-meter i:nth-child(3){background:#D7B06A}

    .notice-bar{margin-top:36px}
    .notice-inner{
      display:flex;align-items:center;gap:16px;
      background:linear-gradient(90deg,#FFF4DA,#FFF9EF);
      border:1px solid #ECD7B4;border-radius:22px;
      padding:18px 20px;box-shadow:0 10px 24px rgba(201,130,43,.08);
    }
    .notice-icon{
      width:42px;height:42px;border-radius:15px;background:rgba(201,130,43,.15);
      color:var(--color-accent);display:grid;place-items:center;flex:0 0 auto;
    }
    .notice-inner p{color:#624929}
    .notice-inner a{color:var(--color-primary);font-weight:800;border-bottom:1px solid rgba(31,61,54,.35)}
    .notice-inner a:hover{border-bottom-color:var(--color-primary)}

    .rules-layout{
      display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
      gap:36px;align-items:center;
    }
    .explain-card{
      background:var(--color-surface);border:1px solid var(--color-border);
      border-radius:var(--radius-xl);padding:34px;box-shadow:var(--shadow-sm);
      position:relative;overflow:hidden;
    }
    .explain-card:after{
      content:"";position:absolute;right:-60px;bottom:-80px;width:190px;height:190px;
      background:rgba(31,61,54,.07);border-radius:50%;
    }
    .explain-card img{border-radius:22px;margin-top:26px;height:220px;width:100%;object-fit:cover;filter:saturate(.82);border:1px solid var(--color-border)}
    .rule-cards{
      display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch;
    }
    .rule-card{
      background:var(--color-surface);border:1px solid var(--color-border);
      border-radius:22px;padding:24px;box-shadow:var(--shadow-sm);
      transition:var(--ease);min-height:190px;
    }
    .rule-card.large{grid-column:1 / -1;background:linear-gradient(135deg,#FFFDF8,#EEF5F1)}
    .rule-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .rule-icon{
      width:46px;height:46px;border-radius:16px;background:var(--color-primary-soft);
      color:var(--color-primary);display:grid;place-items:center;margin-bottom:16px;
    }
    .rule-card:nth-child(3) .rule-icon{background:#FFF2D9;color:var(--color-accent)}
    .rule-card h3{margin-bottom:8px}
    .rule-card p{font-size:15.5px}

    .latest-section{background:rgba(255,253,248,.58);border-top:1px solid rgba(229,222,211,.7);border-bottom:1px solid rgba(229,222,211,.7)}
    .latest-shell{
      display:grid;grid-template-columns:300px minmax(0,1fr);
      gap:28px;align-items:start;
    }
    .latest-aside{
      position:sticky;top:104px;background:var(--color-primary);
      color:#FFF8ED;border-radius:var(--radius-xl);padding:28px;
      overflow:hidden;box-shadow:var(--shadow-md);
    }
    .latest-aside:after{
      content:"";position:absolute;right:-60px;bottom:-70px;width:180px;height:180px;border-radius:50%;
      border:28px solid rgba(255,248,237,.08);
    }
    .latest-aside h2{color:#FFF8ED;font-size:30px;margin-bottom:12px}
    .latest-aside p{color:rgba(255,248,237,.78)}
    .latest-list{display:grid;gap:16px}
    .post-card{
      display:grid;grid-template-columns:150px minmax(0,1fr) auto;
      gap:20px;align-items:center;
      background:var(--color-surface);border:1px solid var(--color-border);
      border-radius:24px;padding:20px;box-shadow:var(--shadow-sm);
      transition:var(--ease);
    }
    .post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(31,61,54,.24)}
    .post-meta{display:grid;gap:8px;align-content:start}
    .tag{
      display:inline-flex;align-items:center;width:max-content;
      padding:5px 10px;border-radius:999px;
      font-size:12.5px;font-weight:800;color:var(--color-primary);
      background:var(--color-primary-soft);border:1px solid rgba(31,61,54,.12);
    }
    .tag.amber{color:#8A5A15;background:#FFF2D9;border-color:#F0D8A5}
    .tag.red{color:var(--color-warning);background:#FFF0EA;border-color:#E7C9BE}
    .post-card h3{font-size:20px;margin-bottom:6px}
    .post-card p{font-size:15px;line-height:1.7}
    .post-link{color:var(--color-primary);font-weight:900;display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
    .post-link:hover{color:var(--color-accent)}
    .empty-state{
      border:1px dashed #D8CDBE;border-radius:24px;background:#FFFDF8;
      padding:38px;text-align:center;box-shadow:var(--shadow-sm);
    }
    .empty-icon{
      width:60px;height:60px;border-radius:22px;margin:0 auto 16px;
      background:#F8EBD2;color:var(--color-accent);display:grid;place-items:center;
    }

    .timeline{
      position:relative;display:grid;gap:18px;margin-top:30px;
    }
    .timeline:before{
      content:"";position:absolute;left:25px;top:18px;bottom:18px;width:2px;
      background:linear-gradient(var(--color-border),rgba(31,61,54,.25),var(--color-border));
    }
    .timeline-item{
      position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);
      gap:16px;align-items:start;
    }
    .timeline-dot{
      width:52px;height:52px;border-radius:18px;background:var(--color-surface);
      border:1px solid var(--color-border);display:grid;place-items:center;
      color:var(--color-primary);box-shadow:var(--shadow-sm);z-index:1;
    }
    .timeline-card{
      background:var(--color-surface);border:1px solid var(--color-border);
      border-radius:22px;padding:22px 24px;display:grid;grid-template-columns:1fr auto;
      gap:14px;align-items:start;transition:var(--ease);
    }
    .timeline-card:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}
    .timeline-card h3{margin-bottom:6px;font-size:20px}

    .suggestions-wrap{
      display:grid;grid-template-columns:1.05fr .95fr;
      gap:24px;align-items:stretch;
    }
    .feature-image{
      position:relative;border-radius:var(--radius-xl);overflow:hidden;
      min-height:520px;border:1px solid var(--color-border);box-shadow:var(--shadow-md);
      background:#10221d;
    }
    .feature-image img{width:100%;height:100%;object-fit:cover;filter:grayscale(24%) saturate(.78);opacity:.62}
    .feature-caption{
      position:absolute;left:24px;right:24px;bottom:24px;
      background:rgba(255,253,248,.9);border:1px solid rgba(229,222,211,.8);
      border-radius:22px;padding:22px;backdrop-filter:blur(8px);
    }
    .suggestion-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .suggestion-card{
      background:var(--color-surface);border:1px solid var(--color-border);
      border-radius:24px;padding:23px;box-shadow:var(--shadow-sm);
      transition:var(--ease);display:flex;flex-direction:column;gap:12px;
    }
    .suggestion-card:nth-child(2),.suggestion-card:nth-child(5){transform:translateY(18px)}
    .suggestion-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .suggestion-card:nth-child(2):hover,.suggestion-card:nth-child(5):hover{transform:translateY(12px)}
    .suggestion-card .mini-icon{
      width:42px;height:42px;border-radius:15px;display:grid;place-items:center;
      color:var(--color-primary);background:var(--color-primary-soft);
    }
    .suggestion-card p{font-size:15px;line-height:1.68}
    .text-link{font-weight:900;color:var(--color-primary);display:inline-flex;align-items:center;gap:6px;margin-top:auto}
    .text-link:hover{color:var(--color-accent)}

    .proof-strip{
      display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
      margin-top:18px;
    }
    .proof-item{
      background:rgba(255,253,248,.76);border:1px solid var(--color-border);
      border-radius:22px;padding:22px;text-align:center;
    }
    .proof-item strong{display:block;font-size:28px;line-height:1;color:var(--color-primary);margin-bottom:9px}
    .proof-item span{font-size:14px;color:var(--color-muted)}

    .faq-shell{
      display:grid;grid-template-columns:330px minmax(0,1fr);
      gap:34px;align-items:start;
    }
    .faq-intro{
      background:linear-gradient(145deg,#FFFDF8,#F2EEE5);
      border:1px solid var(--color-border);border-radius:var(--radius-xl);
      padding:30px;box-shadow:var(--shadow-sm);
    }
    .faq-list{display:grid;gap:14px}
    .faq-item{
      border:1px solid var(--color-border);border-radius:22px;
      background:var(--color-surface);overflow:hidden;box-shadow:var(--shadow-sm);
    }
    .faq-question{
      width:100%;padding:20px 22px;text-align:left;
      display:flex;justify-content:space-between;gap:20px;align-items:center;
      color:var(--color-primary-dark);font-weight:850;
    }
    .faq-question .plus{
      width:28px;height:28px;border-radius:10px;background:var(--color-primary-soft);
      color:var(--color-primary);display:grid;place-items:center;flex:0 0 auto;transition:var(--ease);
    }
    .faq-answer{
      max-height:0;overflow:hidden;transition:max-height .28s ease;
      border-left:4px solid transparent;
    }
    .faq-answer p{padding:0 22px 20px 22px}
    .faq-item.is-open{background:#FFF9EE}
    .faq-item.is-open .faq-answer{max-height:240px;border-left-color:var(--color-accent)}
    .faq-item.is-open .plus{transform:rotate(45deg);background:#FFF2D9;color:var(--color-accent)}

    .feedback-cta{
      display:grid;grid-template-columns:1fr 420px;gap:28px;align-items:center;
      background:
        linear-gradient(135deg,rgba(255,253,248,.94),rgba(238,245,241,.94)),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      border:1px solid var(--color-border);
      border-radius:34px;padding:34px;box-shadow:var(--shadow-md);
      overflow:hidden;position:relative;
    }
    .feedback-cta:after{
      content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;
      border-radius:50%;border:34px solid rgba(31,61,54,.06);
    }
    .feedback-form{
      position:relative;z-index:1;background:rgba(255,253,248,.86);
      border:1px solid var(--color-border);border-radius:24px;padding:22px;
      display:grid;gap:12px;
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field{display:grid;gap:7px}
    .field label{font-size:13px;font-weight:800;color:var(--color-primary)}
    .field input,.field textarea{
      width:100%;border:1px solid #DED5C8;background:#fff;border-radius:14px;
      padding:12px 13px;color:var(--color-text);transition:var(--ease);
    }
    .field textarea{min-height:112px;resize:vertical;grid-column:1 / -1}
    .field input:focus,.field textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 4px rgba(31,61,54,.08);outline:none}

    .site-footer{
      margin-top:86px;background:#142923;color:#EDE7DC;
      padding:56px 0 28px;position:relative;overflow:hidden;
    }
    .site-footer:before{
      content:"";position:absolute;inset:auto -80px -160px auto;width:360px;height:360px;
      border-radius:50%;background:rgba(201,130,43,.12);
    }
    .footer-grid{
      display:grid;grid-template-columns:1.2fr .8fr .8fr .8fr;
      gap:34px;position:relative;z-index:1;
    }
    .footer-brand .brand-mark{background:#FFF8ED;color:var(--color-primary);box-shadow:none}
    .footer-brand .brand-text strong{color:#FFF8ED}
    .footer-brand .brand-text span{color:#E7B66E}
    .footer-brand p{margin-top:18px;color:rgba(237,231,220,.74)}
    .footer-col h3{font-size:16px;color:#FFF8ED;margin-bottom:14px}
    .footer-col a,.footer-col span{display:block;color:rgba(237,231,220,.72);font-size:14px;margin:9px 0;transition:var(--ease)}
    .footer-col a:hover{color:#FFF8ED;transform:translateX(3px)}
    .footer-bottom{
      position:relative;z-index:1;border-top:1px solid rgba(237,231,220,.12);
      margin-top:34px;padding-top:22px;
      display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
      color:rgba(237,231,220,.62);font-size:14px;
    }

    svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}

    @media (max-width:1024px){
      :root{--section:72px}
      .container{width:min(calc(100% - 36px),var(--container))}
      .hero-grid,.rules-layout,.suggestions-wrap,.faq-shell,.feedback-cta{grid-template-columns:1fr}
      .hero-visual{min-height:430px}
      .latest-shell{grid-template-columns:1fr}
      .latest-aside{position:relative;top:auto}
      .proof-strip{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
      .section-head{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:820px){
      .nav-wrap{height:68px}
      .mobile-toggle{display:flex}
      .nav-links{
        position:absolute;left:18px;right:18px;top:76px;
        display:grid;gap:6px;background:rgba(255,253,248,.98);
        border:1px solid var(--color-border);border-radius:22px;padding:12px;
        box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(-8px);
        transition:var(--ease);margin-left:0;
      }
      .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0)}
      .nav-links a{min-height:44px;display:flex;align-items:center;border-radius:14px}
      .header-cta{display:none}
      .hero{padding-top:56px}
      .rule-cards,.suggestion-grid{grid-template-columns:1fr}
      .suggestion-card:nth-child(2),.suggestion-card:nth-child(5),.suggestion-card:nth-child(2):hover,.suggestion-card:nth-child(5):hover{transform:none}
      .post-card{grid-template-columns:1fr;gap:12px}
      .post-link{justify-content:flex-start}
      .timeline-card{grid-template-columns:1fr}
      .feedback-cta{padding:24px}
      .form-row{grid-template-columns:1fr}
      .brand-text strong{max-width:220px}
    }
    @media (max-width:560px){
      body{font-size:16px;line-height:1.78}
      .container{width:min(calc(100% - 28px),var(--container))}
      .hero-actions{display:grid}
      .btn{width:100%;padding:13px 16px}
      .hero-visual{min-height:390px;padding:18px}
      .doc-card.main{left:0;right:0;top:10px}
      .doc-card.side{right:0;top:210px;width:210px}
      .doc-card.note{left:0;bottom:10px;width:220px}
      .notice-inner{align-items:flex-start;flex-direction:column}
      .explain-card,.rule-card,.faq-intro,.feedback-form{padding:20px}
      .proof-strip{grid-template-columns:1fr}
      .feature-image{min-height:390px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
      .brand-text strong{max-width:190px;font-size:14px}
    }

/* roulang page: article */
:root{
      --color-primary:#1F3D36;
      --color-primary-dark:#142923;
      --color-primary-soft:#EAF2EE;
      --color-bg:#F4EFE6;
      --color-surface:#FFFDF8;
      --color-surface-2:#F9F5EE;
      --color-text:#222222;
      --color-muted:#666666;
      --color-light:#8A8176;
      --color-border:#E5DED3;
      --color-accent:#C9822B;
      --color-accent-soft:#FFF2D9;
      --color-warning:#8A3A2D;
      --shadow-sm:0 8px 24px rgba(31,61,54,.08);
      --shadow-md:0 18px 48px rgba(31,61,54,.13);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:24px;
      --radius-xl:34px;
      --container:1200px;
      --section:72px;
      --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(--color-text);
      background:
        radial-gradient(circle at 10% 8%, rgba(201,130,43,.10), transparent 28%),
        radial-gradient(circle at 88% 4%, rgba(31,61,54,.10), transparent 32%),
        var(--color-bg);
      line-height:1.82;
      font-size:16.5px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer;background:none}
    .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
    .section{padding:var(--section) 0}
    .section-tight{padding:58px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--color-primary);font-size:13px;font-weight:800;
      letter-spacing:.04em;background:rgba(31,61,54,.08);
      border:1px solid rgba(31,61,54,.12);
      padding:7px 12px;border-radius:999px;
    }
    .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--color-accent)}
    .section-head{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin-bottom:34px}
    .section-title{max-width:760px}
    .section-title h2{
      margin:14px 0 0;
      font-size:clamp(28px,3vw,34px);
      line-height:1.25;
      color:var(--color-primary-dark);
      letter-spacing:-.02em;
      font-weight:900;
    }
    .lead{font-size:18px;line-height:1.88;color:#4c4a45;max-width:760px;margin:16px 0 0}
    .muted{color:var(--color-muted)}

    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(255,253,248,.92);
      backdrop-filter:saturate(160%) blur(14px);
      border-bottom:1px solid rgba(229,222,211,.82);
      transition:var(--ease);
    }
    .site-header.is-scrolled{box-shadow:0 10px 28px rgba(31,61,54,.08)}
    .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:42px;height:42px;border-radius:16px;background:linear-gradient(145deg,var(--color-primary),#315d52);
      color:#fff;display:grid;place-items:center;box-shadow:0 10px 20px rgba(31,61,54,.18);flex:0 0 auto;
    }
    .brand-mark svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
    .brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
    .brand-text strong{font-size:16px;color:var(--color-primary-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px}
    .brand-text span{font-size:12px;color:var(--color-accent);font-weight:800;margin-top:3px}
    .nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
    .nav-links a{
      color:#3f4743;font-weight:700;font-size:15px;
      padding:10px 13px;border-radius:999px;transition:var(--ease);
    }
    .nav-links a:hover,.nav-links a.active{background:var(--color-primary-soft);color:var(--color-primary)}
    .nav-links a:focus-visible,.btn:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(201,130,43,.36);outline-offset:3px;
    }
    .header-cta{margin-left:8px}
    .mobile-toggle{
      display:none;width:44px;height:44px;border-radius:14px;
      border:1px solid var(--color-border);background:var(--color-surface);
      align-items:center;justify-content:center;
    }
    .mobile-toggle span,.mobile-toggle span:before,.mobile-toggle span:after{
      display:block;width:20px;height:2px;background:var(--color-primary);border-radius:10px;transition:var(--ease);content:"";
    }
    .mobile-toggle span:before{transform:translateY(-7px)}
    .mobile-toggle span:after{transform:translateY(5px)}
    .mobile-toggle.is-open span{background:transparent}
    .mobile-toggle.is-open span:before{transform:rotate(45deg)}
    .mobile-toggle.is-open span:after{transform:rotate(-45deg) translate(1px,-1px)}

    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      border-radius:999px;padding:12px 18px;
      font-weight:800;line-height:1.2;transition:var(--ease);
      border:1px solid transparent;white-space:nowrap;
    }
    .btn-primary{
      color:#FFF8ED;background:var(--color-primary);
      box-shadow:0 12px 26px rgba(31,61,54,.2);
    }
    .btn-primary:hover{background:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 16px 34px rgba(31,61,54,.28)}
    .btn-secondary{background:rgba(255,253,248,.78);border-color:var(--color-border);color:var(--color-primary)}
    .btn-secondary:hover{background:var(--color-primary-soft);border-color:rgba(31,61,54,.34);transform:translateY(-2px)}
    .btn-ghost{padding:10px 14px;border-color:var(--color-border);color:var(--color-primary);background:#fff}
    .btn-ghost:hover{border-color:var(--color-primary);background:var(--color-primary-soft)}

    .badge{
      display:inline-flex;align-items:center;gap:7px;
      border-radius:999px;padding:7px 11px;font-size:13px;font-weight:800;
      color:var(--color-primary);background:var(--color-primary-soft);
      border:1px solid rgba(31,61,54,.12);
    }
    .badge-warning{color:var(--color-warning);background:#F9E5DF;border-color:#EBCBC1}
    .badge-accent{color:#7A4A10;background:var(--color-accent-soft);border-color:#F0D7A8}

    .article-banner{
      position:relative;
      overflow:hidden;
      padding:44px 0 56px;
      border-bottom:1px solid rgba(229,222,211,.88);
    }
    .article-banner:before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(244,239,230,.98) 0%,rgba(244,239,230,.92) 48%,rgba(244,239,230,.72) 100%),
        url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
      z-index:-2;
    }
    .article-banner:after{
      content:"";
      position:absolute;right:-120px;top:50px;width:330px;height:330px;border-radius:999px;
      background:rgba(201,130,43,.12);filter:blur(5px);z-index:-1;
    }
    .breadcrumb-wrap{
      display:flex;align-items:center;flex-wrap:wrap;gap:8px;
      color:#746e66;font-size:14px;margin-bottom:26px;
    }
    .breadcrumb-wrap a{color:var(--color-primary);font-weight:700}
    .breadcrumb-wrap a:hover{color:var(--color-accent)}
    .breadcrumb-wrap .sep{color:#aaa197}
    .article-hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 340px;
      gap:42px;
      align-items:end;
    }
    .article-title-card{
      max-width:840px;
    }
    .article-title-card h1{
      margin:18px 0 18px;
      font-size:clamp(30px,4.2vw,48px);
      line-height:1.22;
      letter-spacing:-.035em;
      color:var(--color-primary-dark);
      font-weight:950;
    }
    .article-desc{
      margin:0;
      font-size:18px;
      line-height:1.9;
      color:#4f4c47;
      max-width:820px;
    }
    .article-meta{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:22px;
      color:var(--color-muted);font-size:14px;
    }
    .meta-pill{
      display:inline-flex;align-items:center;gap:7px;
      padding:7px 11px;
      border:1px solid var(--color-border);
      border-radius:999px;
      background:rgba(255,253,248,.72);
      font-weight:700;
    }
    .cover-card{
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:var(--color-surface);
      border:1px solid rgba(229,222,211,.9);
      box-shadow:var(--shadow-md);
      position:relative;
      min-height:260px;
    }
    .cover-card img{
      width:100%;
      height:260px;
      object-fit:cover;
      filter:saturate(.72) contrast(.96);
    }
    .cover-card:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(31,61,54,.08),rgba(31,61,54,.52));
    }
    .cover-note{
      position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
      color:#FFF8ED;
    }
    .cover-note strong{display:block;font-size:18px;margin-bottom:6px}
    .cover-note span{display:block;font-size:13px;line-height:1.6;opacity:.92}

    .notice-strip{
      margin-top:-30px;
      position:relative;
      z-index:5;
    }
    .notice-inner{
      display:flex;align-items:flex-start;gap:14px;
      padding:18px 20px;
      border:1px solid #EBD2A6;
      background:rgba(255,242,217,.96);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      color:#5f451f;
    }
    .notice-icon{
      width:34px;height:34px;border-radius:13px;
      display:grid;place-items:center;
      background:#fff7e8;color:var(--color-accent);
      flex:0 0 auto;
      font-weight:900;
    }
    .notice-inner p{margin:0;line-height:1.75}
    .notice-inner a{color:var(--color-primary);font-weight:800;border-bottom:1px solid rgba(31,61,54,.35)}

    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,820px) 320px;
      gap:48px;
      align-items:start;
    }
    .article-main{
      min-width:0;
    }
    .content-card{
      background:rgba(255,253,248,.94);
      border:1px solid rgba(229,222,211,.92);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-sm);
      padding:42px;
    }
    .article-content{
      font-size:17px;
      line-height:1.92;
      color:#302f2c;
    }
    .article-content h2,.article-content h3,.article-content h4{
      color:var(--color-primary-dark);
      line-height:1.35;
      letter-spacing:-.015em;
      font-weight:900;
    }
    .article-content h2{font-size:29px;margin:2.1em 0 .75em}
    .article-content h3{font-size:23px;margin:1.8em 0 .65em}
    .article-content h4{font-size:19px;margin:1.5em 0 .55em}
    .article-content p{margin:0 0 1.15em}
    .article-content a{
      color:var(--color-primary);
      font-weight:800;
      border-bottom:1px solid rgba(31,61,54,.25);
      transition:var(--ease);
    }
    .article-content a:hover{color:var(--color-accent);border-bottom-color:rgba(201,130,43,.45)}
    .article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.2em}
    .article-content li{margin:.42em 0}
    .article-content blockquote{
      margin:1.6em 0;
      padding:18px 20px;
      background:var(--color-surface-2);
      border-left:4px solid var(--color-accent);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      color:#4e4942;
    }
    .article-content img{
      border-radius:16px;
      border:1px solid var(--color-border);
      margin:1.6em auto;
      box-shadow:0 12px 30px rgba(31,61,54,.08);
    }
    .article-content figure{margin:1.8em 0}
    .article-content figcaption{
      text-align:center;
      color:var(--color-light);
      font-size:14px;
      margin-top:10px;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border:1px solid var(--color-border);
      border-radius:16px;
      margin:1.5em 0;
      background:#fff;
      font-size:15px;
    }
    .article-content th,.article-content td{
      padding:12px 14px;
      border-bottom:1px solid var(--color-border);
      vertical-align:top;
    }
    .article-content th{background:var(--color-primary-soft);color:var(--color-primary-dark);font-weight:900}
    .article-content tr:last-child td{border-bottom:0}
    .not-found{
      text-align:center;
      padding:34px 18px;
    }
    .not-found-icon{
      width:70px;height:70px;border-radius:24px;margin:0 auto 18px;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      display:grid;place-items:center;
      font-size:30px;
      font-weight:900;
    }
    .not-found h2{
      color:var(--color-primary-dark);
      font-size:28px;
      margin:0 0 10px;
      font-weight:900;
    }
    .not-found p{color:var(--color-muted);margin:0 0 22px}

    .sidebar{
      position:sticky;
      top:98px;
      display:grid;
      gap:18px;
    }
    .side-card{
      background:rgba(255,253,248,.95);
      border:1px solid rgba(229,222,211,.92);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      padding:22px;
      transition:var(--ease);
    }
    .side-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
    .side-card h2,.side-card h3{
      margin:0 0 12px;
      font-size:19px;
      color:var(--color-primary-dark);
      font-weight:900;
      line-height:1.35;
    }
    .side-card p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.72}
    .check-list{
      list-style:none;
      padding:0;
      margin:14px 0 0;
      display:grid;
      gap:10px;
    }
    .check-list li{
      display:flex;gap:10px;align-items:flex-start;
      color:#4b4843;
      font-size:14.5px;
      line-height:1.65;
    }
    .check-list li:before{
      content:"";
      width:8px;height:8px;border-radius:99px;
      background:var(--color-accent);
      margin-top:9px;
      flex:0 0 auto;
    }
    .toc-list{
      list-style:none;
      margin:12px 0 0;
      padding:0;
      display:grid;
      gap:8px;
    }
    .toc-list a{
      display:flex;gap:8px;align-items:center;
      padding:9px 10px;
      border-radius:12px;
      color:#4c544f;
      background:rgba(244,239,230,.48);
      font-weight:700;
      font-size:14px;
      transition:var(--ease);
    }
    .toc-list a:hover{
      color:var(--color-primary);
      background:var(--color-primary-soft);
      transform:translateX(3px);
    }
    .mini-posts{
      display:grid;
      gap:10px;
      margin-top:14px;
    }
    .mini-post{
      padding:12px;
      border:1px solid var(--color-border);
      border-radius:14px;
      background:var(--color-surface-2);
      transition:var(--ease);
    }
    .mini-post:hover{background:#fff;transform:translateY(-2px)}
    .mini-post strong{
      display:block;
      color:var(--color-primary-dark);
      font-size:14.5px;
      line-height:1.5;
      margin-bottom:4px;
    }
    .mini-post span{font-size:12.5px;color:var(--color-light)}

    .rules-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .rule-card{
      border:1px solid rgba(229,222,211,.92);
      background:rgba(255,253,248,.9);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      padding:26px;
      transition:var(--ease);
    }
    .rule-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .rule-card.featured{
      background:
        linear-gradient(145deg,rgba(31,61,54,.94),rgba(31,61,54,.82)),
        url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat;
      color:#FFF8ED;
      min-height:300px;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      overflow:hidden;
      position:relative;
    }
    .rule-card.featured:before{
      content:"";
      position:absolute;inset:0;
      background:radial-gradient(circle at 88% 0%,rgba(201,130,43,.28),transparent 34%);
    }
    .rule-card.featured > *{position:relative}
    .rule-card h3{
      margin:14px 0 10px;
      font-size:22px;
      color:var(--color-primary-dark);
      font-weight:900;
      line-height:1.35;
    }
    .rule-card.featured h3{color:#FFF8ED;font-size:26px}
    .rule-card p{margin:0;color:var(--color-muted);line-height:1.78}
    .rule-card.featured p{color:rgba(255,248,237,.9)}
    .rule-icon{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      font-weight:950;
    }
    .rule-card.featured .rule-icon{background:rgba(255,248,237,.12);color:#FFE5B8;border:1px solid rgba(255,248,237,.22)}
    .rule-stack{display:grid;gap:24px}

    .related-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
    }
    .related-card{
      background:rgba(255,253,248,.94);
      border:1px solid rgba(229,222,211,.92);
      border-radius:var(--radius-lg);
      overflow:hidden;
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
    .related-media{
      height:150px;
      position:relative;
      overflow:hidden;
      background:var(--color-primary-soft);
    }
    .related-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.72)}
    .related-media:after{
      content:"";
      position:absolute;inset:0;
      background:linear-gradient(180deg,rgba(31,61,54,.02),rgba(31,61,54,.30));
    }
    .related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
    .related-body h3{
      margin:0;
      font-size:19px;
      line-height:1.42;
      color:var(--color-primary-dark);
      font-weight:900;
    }
    .related-body p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.72}
    .related-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto;padding-top:6px}

    .faq-list{display:grid;gap:14px;max-width:900px}
    .faq-item{
      border:1px solid rgba(229,222,211,.95);
      border-radius:var(--radius-lg);
      background:rgba(255,253,248,.94);
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:20px 22px;
      color:var(--color-primary-dark);
      font-weight:900;
      text-align:left;
      background:transparent;
    }
    .faq-question span:first-child{font-size:17px}
    .faq-icon{
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:var(--color-primary-soft);
      color:var(--color-primary);
      flex:0 0 auto;
      transition:var(--ease);
    }
    .faq-answer{
      max-height:0;
      overflow:hidden;
      transition:max-height .26s ease;
    }
    .faq-answer p{
      margin:0;
      padding:0 22px 20px;
      color:var(--color-muted);
      line-height:1.82;
      border-left:3px solid var(--color-accent);
      margin-left:22px;
      padding-left:17px;
    }
    .faq-item.is-open{background:#FFF9EF}
    .faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--color-accent-soft);color:var(--color-accent)}
    .faq-item.is-open .faq-answer{max-height:260px}

    .feedback-card{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:26px;
      background:
        linear-gradient(135deg,rgba(255,253,248,.96),rgba(249,245,238,.96)),
        url('/assets/images/coverpic/cover-4.webp') right center/cover no-repeat;
      border:1px solid rgba(229,222,211,.95);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-md);
      padding:34px;
      overflow:hidden;
      position:relative;
    }
    .feedback-card:before{
      content:"";
      position:absolute;right:0;top:0;bottom:0;width:44%;
      background:linear-gradient(90deg,rgba(255,253,248,.98),rgba(255,253,248,.70));
    }
    .feedback-copy,.feedback-form{position:relative}
    .feedback-copy h2{
      margin:14px 0 12px;
      color:var(--color-primary-dark);
      font-size:30px;
      line-height:1.26;
      font-weight:950;
    }
    .feedback-copy p{margin:0;color:var(--color-muted);line-height:1.85}
    .feedback-form{
      display:grid;
      gap:12px;
      background:rgba(255,253,248,.86);
      border:1px solid var(--color-border);
      border-radius:var(--radius-lg);
      padding:20px;
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .feedback-form label{
      display:grid;
      gap:7px;
      color:#4c4a45;
      font-size:14px;
      font-weight:800;
    }
    .feedback-form input,.feedback-form textarea{
      width:100%;
      border:1px solid var(--color-border);
      border-radius:14px;
      background:#fff;
      padding:12px 13px;
      color:var(--color-text);
      outline:none;
      transition:var(--ease);
    }
    .feedback-form input:focus,.feedback-form textarea:focus{
      border-color:rgba(31,61,54,.55);
      box-shadow:0 0 0 4px rgba(31,61,54,.09);
    }
    .feedback-form textarea{min-height:112px;resize:vertical}
    .form-hint{font-size:13px;color:var(--color-light);margin:0}

    .site-footer{
      background:var(--color-primary-dark);
      color:rgba(255,248,237,.82);
      padding:58px 0 26px;
      margin-top:44px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr .75fr .85fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer-brand .brand-text strong{color:#FFF8ED}
    .footer-brand .brand-text span{color:#F2C27B}
    .footer-brand .brand-mark{background:rgba(255,248,237,.12);border:1px solid rgba(255,248,237,.18)}
    .footer-brand p{
      margin:18px 0 0;
      color:rgba(255,248,237,.72);
      line-height:1.78;
      max-width:440px;
    }
    .footer-col{display:grid;gap:9px}
    .footer-col h3{
      color:#FFF8ED;
      font-size:16px;
      margin:0 0 8px;
      font-weight:900;
    }
    .footer-col a,.footer-col span{
      color:rgba(255,248,237,.72);
      font-size:14px;
      line-height:1.6;
      transition:var(--ease);
    }
    .footer-col a:hover{color:#F2C27B;transform:translateX(2px)}
    .footer-bottom{
      border-top:1px solid rgba(255,248,237,.13);
      margin-top:34px;
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      color:rgba(255,248,237,.58);
      font-size:13px;
    }

    @media (max-width:1100px){
      .brand-text strong{max-width:230px}
      .article-hero-grid{grid-template-columns:1fr}
      .cover-card{max-width:540px}
      .article-layout{grid-template-columns:1fr}
      .sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .related-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:900px){
      .header-cta{display:none}
      .mobile-toggle{display:flex}
      .nav-links{
        position:absolute;
        top:76px;
        left:24px;
        right:24px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
        padding:14px;
        background:rgba(255,253,248,.98);
        border:1px solid var(--color-border);
        border-radius:22px;
        box-shadow:var(--shadow-md);
      }
      .nav-links.is-open{display:flex}
      .nav-links a{
        min-height:44px;
        display:flex;
        align-items:center;
        padding:12px 14px;
      }
      .rules-grid{grid-template-columns:1fr}
      .feedback-card{grid-template-columns:1fr}
      .feedback-card:before{display:none}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:767px){
      :root{--section:54px}
      body{font-size:16px}
      .container{width:min(calc(100% - 32px),var(--container))}
      .nav-wrap{height:70px}
      .nav-links{top:70px;left:16px;right:16px}
      .brand-mark{width:39px;height:39px;border-radius:14px}
      .brand-text strong{max-width:190px;font-size:15px}
      .article-banner{padding:30px 0 48px}
      .article-title-card h1{font-size:31px}
      .article-desc{font-size:16.5px}
      .notice-inner{flex-direction:column}
      .content-card{padding:24px;border-radius:24px}
      .article-content{font-size:16.2px}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:21px}
      .sidebar{grid-template-columns:1fr}
      .related-grid{grid-template-columns:1fr}
      .form-row{grid-template-columns:1fr}
      .feedback-card{padding:24px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:480px){
      .brand-text strong{max-width:160px}
      .btn{width:100%;padding:13px 16px}
      .article-meta{align-items:stretch}
      .meta-pill,.badge{width:100%;justify-content:center}
      .cover-card img{height:220px}
      .content-card{padding:20px}
      .article-content table{display:block;overflow-x:auto}
      .section-head{display:block}
      .feedback-copy h2{font-size:26px}
    }

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