/* roulang page: index */
:root{
      --ink:#141411;
      --ink-2:#24241f;
      --paper:#F7F3EA;
      --paper-2:#FFFDF7;
      --paper-3:#F2EEE4;
      --muted:#6B675E;
      --line:rgba(20,20,17,.12);
      --line-dark:rgba(248,245,236,.14);
      --green:#32D6A0;
      --green-dark:#18a978;
      --amber:#F0B35A;
      --ivory:#F8F5EC;
      --white:#ffffff;
      --shadow:0 24px 70px rgba(17,17,15,.09);
      --shadow-soft:0 16px 40px rgba(17,17,15,.06);
      --radius-xl:36px;
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --nav-h:84px;
      --ease:cubic-bezier(.22,1,.36,1);
      --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 8%, rgba(50,214,160,.12), transparent 26%),
        radial-gradient(circle at 88% 12%, rgba(240,179,90,.12), transparent 30%),
        linear-gradient(180deg,var(--paper),#fbf8ef 42%,var(--paper));
      line-height:1.75;
      overflow-x:hidden;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    input,select,textarea{
      width:100%;
      border:1px solid var(--line);
      background:rgba(255,253,247,.92);
      color:var(--ink);
      border-radius:16px;
      padding:14px 16px;
      outline:none;
      transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
    }
    textarea{min-height:118px;resize:vertical}
    input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible,button:focus-visible{
      outline:3px solid rgba(50,214,160,.36);
      outline-offset:3px;
    }
    input:focus,select:focus,textarea:focus{
      border-color:rgba(50,214,160,.78);
      box-shadow:0 0 0 5px rgba(50,214,160,.12);
      background:#fff;
    }
    .grid-container{max-width:1220px}
    .section{padding:104px 0}
    .section-tight{padding:78px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted);
      background:rgba(255,253,247,.72);
      font-size:13px;
      font-weight:700;
      letter-spacing:.03em;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:50%;
      background:var(--green);
      box-shadow:0 0 0 7px rgba(50,214,160,.13);
    }
    .section-title{
      margin:18px 0 12px;
      font-size:clamp(34px,4.2vw,52px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:900;
    }
    .section-lead{
      max-width:720px;
      color:var(--muted);
      font-size:17px;
      margin:0;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,243,234,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(14px);
    }
    .nav-shell{
      min-height:var(--nav-h);
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:22px;
    }
    .nav-side{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-side.left{justify-content:flex-start}
    .nav-side.right{justify-content:flex-end}
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:9px 13px;
      border-radius:999px;
      color:var(--muted);
      font-weight:800;
      font-size:14px;
      white-space:nowrap;
    }
    .nav-link:hover{color:var(--ink);background:rgba(20,20,17,.05)}
    .nav-link.active{
      color:var(--ink);
      background:var(--paper-2);
      box-shadow:inset 0 0 0 1px var(--line);
    }
    .nav-link.active::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:5px;
      transform:translateX(-50%);
      width:5px;height:5px;border-radius:50%;
      background:var(--green);
    }
    .brand{
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      min-width:260px;
      padding:8px 20px;
      border-left:1px solid var(--line);
      border-right:1px solid var(--line);
    }
    .brand strong{
      font-size:18px;
      line-height:1.1;
      letter-spacing:-.04em;
      font-weight:950;
    }
    .brand span{
      margin-top:4px;
      color:var(--muted);
      font-size:11px;
      font-weight:800;
      letter-spacing:.18em;
    }
    .nav-cta{
      color:var(--ink);
      background:var(--amber);
      box-shadow:inset 0 -2px 0 rgba(20,20,17,.12);
    }
    .nav-cta:hover{background:var(--green);color:var(--ink);transform:translateY(-1px)}
    .mobile-bar{display:none;min-height:72px;align-items:center;justify-content:space-between}
    .menu-button{
      border:1px solid var(--line);
      background:var(--paper-2);
      color:var(--ink);
      border-radius:999px;
      padding:10px 14px;
      font-weight:900;
    }
    .mobile-menu{
      display:none;
      padding:0 0 18px;
      border-top:1px solid var(--line);
    }
    .mobile-menu.is-open{display:block}
    .mobile-menu .nav-link{display:flex;width:100%;justify-content:space-between;margin-top:8px}
    .hero{
      position:relative;
      padding:76px 0 72px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(20,20,17,.045) 1px,transparent 1px),
        linear-gradient(90deg,rgba(20,20,17,.045) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(180deg,#000,transparent 92%);
      pointer-events:none;
    }
    .hero-content{position:relative;z-index:1}
    .hero h1{
      margin:22px 0 20px;
      font-size:clamp(38px,6.4vw,72px);
      line-height:1.04;
      letter-spacing:-.065em;
      font-weight:950;
    }
    .hero h1 .mark{
      display:inline-block;
      color:var(--ink);
      background:linear-gradient(transparent 62%,rgba(240,179,90,.48) 0);
    }
    .hero p{
      max-width:650px;
      margin:0 0 28px;
      color:var(--muted);
      font-size:18px;
    }
    .hero-actions,.cta-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:52px;
      padding:14px 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      line-height:1;
      transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease);
    }
    .btn-primary{
      background:var(--ink);
      color:var(--ivory);
      box-shadow:0 16px 36px rgba(20,20,17,.18);
    }
    .btn-primary:hover{background:var(--green);color:var(--ink);transform:translateY(-2px);box-shadow:0 18px 42px rgba(50,214,160,.28)}
    .btn-secondary{
      background:rgba(255,253,247,.8);
      border-color:var(--line);
      color:var(--ink);
    }
    .btn-secondary:hover{border-color:rgba(50,214,160,.8);background:rgba(50,214,160,.12);transform:translateY(-2px)}
    .trust-row{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:34px;
    }
    .trust-pill{
      padding:9px 13px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,253,247,.66);
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .dashboard{
      position:relative;
      padding:22px;
      border-radius:var(--radius-xl);
      background:var(--ink);
      color:var(--ivory);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .dashboard::before{
      content:"";
      position:absolute;
      inset:-40% -20%;
      background:
        radial-gradient(circle at 80% 20%,rgba(50,214,160,.24),transparent 28%),
        radial-gradient(circle at 20% 80%,rgba(240,179,90,.17),transparent 30%);
      pointer-events:none;
    }
    .dashboard > *{position:relative;z-index:1}
    .dash-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
    .dash-title{font-size:14px;font-weight:900;color:rgba(248,245,236,.82)}
    .live-dot{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:12px;font-weight:900}
    .live-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 8px rgba(50,214,160,.12)}
    .meter-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:14px}
    .big-meter{
      min-height:228px;
      border:1px solid var(--line-dark);
      border-radius:28px;
      padding:22px;
      background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
    }
    .meter-number{
      font-size:76px;
      line-height:.95;
      font-weight:950;
      letter-spacing:-.08em;
      color:var(--amber);
    }
    .meter-number small{font-size:24px;letter-spacing:-.02em;color:var(--ivory)}
    .meter-desc{color:rgba(248,245,236,.72);font-size:14px;margin:12px 0 0}
    .playbar{height:10px;background:rgba(248,245,236,.12);border-radius:999px;margin-top:28px;overflow:hidden}
    .playbar span{display:block;width:68%;height:100%;background:linear-gradient(90deg,var(--green),var(--amber));border-radius:999px}
    .mini-stack{display:grid;gap:14px}
    .mini-meter{
      border:1px solid var(--line-dark);
      border-radius:24px;
      padding:18px;
      background:rgba(248,245,236,.055);
    }
    .mini-meter b{display:block;font-size:34px;line-height:1;font-weight:950;color:var(--green)}
    .mini-meter span{display:block;margin-top:8px;color:rgba(248,245,236,.72);font-size:13px}
    .wave{
      margin-top:16px;
      height:58px;
      border:1px solid var(--line-dark);
      border-radius:20px;
      background:
        linear-gradient(90deg,transparent 0 7%,rgba(50,214,160,.32) 7% 9%,transparent 9% 17%,rgba(240,179,90,.34) 17% 20%,transparent 20% 33%,rgba(50,214,160,.42) 33% 36%,transparent 36% 48%,rgba(248,245,236,.28) 48% 50%,transparent 50% 62%,rgba(50,214,160,.35) 62% 65%,transparent 65% 78%,rgba(240,179,90,.3) 78% 81%,transparent 81%);
      opacity:.95;
    }
    .panel{
      border:1px solid var(--line);
      background:rgba(255,253,247,.76);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
    }
    .metrics-board{
      padding:30px;
      margin-top:34px;
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:22px;
    }
    .metric-main{
      border-radius:28px;
      background:var(--ink);
      color:var(--ivory);
      padding:30px;
      min-height:330px;
      position:relative;
      overflow:hidden;
    }
    .metric-main::after{
      content:"";
      position:absolute;
      right:-60px;bottom:-70px;
      width:260px;height:260px;border-radius:50%;
      border:34px solid rgba(50,214,160,.14);
    }
    .metric-main .num{font-size:86px;line-height:1;font-weight:950;letter-spacing:-.08em;color:var(--green)}
    .metric-main h3{font-size:25px;line-height:1.2;margin:16px 0 8px;font-weight:950}
    .metric-main p{color:rgba(248,245,236,.72);max-width:520px;margin:0}
    .metric-list{display:grid;gap:14px}
    .metric-item{
      padding:20px;
      border-radius:24px;
      background:var(--paper-2);
      border:1px solid var(--line);
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .metric-item:hover,.service-card:hover,.entry-card:hover{transform:translateY(-4px);border-color:rgba(50,214,160,.72);box-shadow:0 18px 45px rgba(17,17,15,.08)}
    .metric-item b{font-size:30px;line-height:1;font-weight:950;color:var(--amber)}
    .metric-item strong{display:block;margin-top:7px;font-size:16px}
    .metric-item span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .category-entry{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:stretch;
      margin-top:34px;
    }
    .entry-card{
      position:relative;
      padding:30px;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:linear-gradient(135deg,var(--paper-2),var(--paper-3));
      overflow:hidden;
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .entry-card::after{
      content:"";
      position:absolute;
      right:24px;top:24px;
      width:108px;height:70px;
      border-radius:22px;
      background:
        linear-gradient(90deg,rgba(20,20,17,.08) 1px,transparent 1px),
        linear-gradient(180deg,rgba(20,20,17,.08) 1px,transparent 1px);
      background-size:16px 16px;
      opacity:.8;
    }
    .entry-card h3{font-size:30px;line-height:1.15;font-weight:950;margin:0 0 12px;max-width:520px}
    .entry-card p{color:var(--muted);margin:0 0 22px;max-width:650px}
    .tag-row{display:flex;gap:9px;flex-wrap:wrap}
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(50,214,160,.12);
      color:#127958;
      font-size:12px;
      font-weight:900;
      border:1px solid rgba(50,214,160,.24);
    }
    .tag.amber{background:rgba(240,179,90,.16);color:#87602a;border-color:rgba(240,179,90,.28)}
    .entry-side{
      display:grid;
      gap:14px;
    }
    .entry-mini{
      padding:22px;
      border-radius:26px;
      background:var(--paper-2);
      border:1px solid var(--line);
    }
    .entry-mini strong{display:block;font-size:18px;font-weight:950}
    .entry-mini span{display:block;color:var(--muted);font-size:14px;margin-top:5px}
    .matrix-wrap{
      margin-top:38px;
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:24px;
      align-items:start;
    }
    .matrix-intro{
      position:sticky;
      top:110px;
      padding:30px;
      background:var(--ink);
      color:var(--ivory);
      border-radius:var(--radius-xl);
      overflow:hidden;
    }
    .matrix-intro h3{font-size:34px;line-height:1.1;letter-spacing:-.04em;font-weight:950;margin:0 0 12px}
    .matrix-intro p{color:rgba(248,245,236,.72);margin:0 0 22px}
    .service-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .service-card{
      min-height:196px;
      padding:24px;
      border:1px solid var(--line);
      border-radius:28px;
      background:var(--paper-2);
      transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
    }
    .service-card:nth-child(2){margin-top:34px}
    .service-card:nth-child(3){margin-top:-10px}
    .icon-mark{
      width:42px;height:42px;border-radius:16px;
      display:grid;place-items:center;
      background:var(--ink);
      color:var(--green);
      font-weight:950;
      margin-bottom:18px;
    }
    .service-card h3{font-size:22px;line-height:1.2;font-weight:950;margin:0 0 10px}
    .service-card p{color:var(--muted);font-size:15px;margin:0 0 16px}
    .timeline{
      margin-top:38px;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:14px;
      counter-reset:step;
    }
    .step{
      position:relative;
      min-height:210px;
      padding:22px;
      border-radius:28px;
      background:var(--paper-2);
      border:1px solid var(--line);
      overflow:hidden;
    }
    .step::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      width:44px;height:44px;
      align-items:center;justify-content:center;
      border-radius:50%;
      background:rgba(240,179,90,.2);
      color:#7a5522;
      font-weight:950;
      margin-bottom:24px;
    }
    .step::after{
      content:"";
      position:absolute;
      left:22px;right:22px;bottom:22px;
      height:6px;border-radius:999px;
      background:linear-gradient(90deg,var(--green),rgba(50,214,160,.08));
    }
    .step h3{font-size:18px;font-weight:950;line-height:1.25;margin:0 0 8px}
    .step p{font-size:14px;color:var(--muted);margin:0}
    .comparison{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      margin-top:38px;
    }
    .compare-card{
      border-radius:var(--radius-xl);
      padding:30px;
      border:1px solid var(--line);
      background:var(--paper-2);
    }
    .compare-card.dark{
      background:var(--ink);
      color:var(--ivory);
      border-color:var(--ink);
    }
    .compare-card h3{font-size:29px;line-height:1.12;font-weight:950;margin:0 0 22px}
    .score-row{margin:18px 0}
    .score-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;font-size:14px;font-weight:900}
    .score-top span:last-child{color:var(--muted)}
    .dark .score-top span:last-child{color:rgba(248,245,236,.68)}
    .score-track{height:10px;border-radius:999px;background:rgba(20,20,17,.09);overflow:hidden}
    .dark .score-track{background:rgba(248,245,236,.13)}
    .score-track i{display:block;height:100%;border-radius:999px;background:var(--muted);width:48%}
    .dark .score-track i{background:linear-gradient(90deg,var(--green),var(--amber));width:86%}
    .faq-section{
      background:var(--ink);
      color:var(--ivory);
      border-radius:42px;
      padding:56px;
      position:relative;
      overflow:hidden;
    }
    .faq-section::before{
      content:"";
      position:absolute;inset:0;
      background-image:radial-gradient(rgba(50,214,160,.28) 1px,transparent 1px);
      background-size:24px 24px;
      opacity:.18;
      pointer-events:none;
    }
    .faq-section > *{position:relative;z-index:1}
    .faq-section .section-lead{color:rgba(248,245,236,.68)}
    .accordion{
      margin-top:34px;
      background:transparent;
    }
    .accordion-item{
      background:transparent;
      border:1px solid var(--line-dark);
      border-radius:22px;
      margin-bottom:12px;
      overflow:hidden;
    }
    .accordion-title{
      border:0!important;
      background:rgba(248,245,236,.055)!important;
      color:var(--ivory)!important;
      font-weight:950;
      font-size:17px;
      padding:20px 54px 20px 20px;
    }
    .accordion-title:hover,.accordion-title:focus{background:rgba(50,214,160,.1)!important}
    .accordion-content{
      border:0!important;
      background:rgba(248,245,236,.035)!important;
      color:rgba(248,245,236,.74)!important;
      padding:0 20px 20px;
    }
    .cta-panel{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:26px;
      align-items:center;
      padding:34px;
      border-radius:42px;
      background:
        radial-gradient(circle at 12% 20%,rgba(50,214,160,.16),transparent 28%),
        linear-gradient(135deg,var(--paper-2),var(--paper-3));
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
    }
    .cta-copy h2{
      font-size:clamp(32px,4vw,50px);
      line-height:1.1;
      letter-spacing:-.05em;
      font-weight:950;
      margin:14px 0 12px;
    }
    .cta-copy p{color:var(--muted);margin:0 0 20px}
    .benefit-list{display:grid;gap:10px;margin:24px 0 0}
    .benefit{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-weight:700;
      font-size:15px;
    }
    .benefit::before{
      content:"✓";
      flex:0 0 auto;
      width:22px;height:22px;border-radius:50%;
      display:grid;place-items:center;
      background:rgba(50,214,160,.14);
      color:#12805e;
      font-size:13px;
      font-weight:950;
      margin-top:2px;
    }
    .form-card{
      padding:26px;
      border-radius:32px;
      background:rgba(255,253,247,.88);
      border:1px solid var(--line);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-field{margin-bottom:14px}
    .form-field label{
      display:block;
      color:var(--ink);
      font-size:13px;
      font-weight:950;
      margin:0 0 8px 4px;
    }
    .form-note{margin:12px 0 0;color:var(--muted);font-size:12px;line-height:1.6}
    .site-footer{
      padding:56px 0 30px;
      background:var(--ink);
      color:var(--ivory);
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      left:0;right:0;top:0;height:1px;
      background:linear-gradient(90deg,transparent,var(--green),var(--amber),transparent);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:36px;
      padding-bottom:32px;
      border-bottom:1px solid var(--line-dark);
    }
    .footer-brand strong{display:block;font-size:26px;line-height:1.15;letter-spacing:-.04em;font-weight:950}
    .footer-brand p{max-width:560px;color:rgba(248,245,236,.68);margin:12px 0 0}
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
      align-content:flex-start;
    }
    .footer-links a{
      padding:9px 12px;
      border:1px solid var(--line-dark);
      border-radius:999px;
      color:rgba(248,245,236,.72);
      font-size:13px;
      font-weight:800;
    }
    .footer-links a:hover{color:var(--ink);background:var(--green);border-color:var(--green)}
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(248,245,236,.55);
      font-size:13px;
    }
    @media (max-width:1024px){
      .nav-shell{display:none}
      .mobile-bar{display:flex}
      .hero{padding:54px 0 62px}
      .meter-grid,.metrics-board,.category-entry,.matrix-wrap,.comparison,.cta-panel,.footer-grid{grid-template-columns:1fr}
      .matrix-intro{position:relative;top:auto}
      .timeline{grid-template-columns:1fr 1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:768px){
      .section{padding:70px 0}
      .section-tight{padding:58px 0}
      .brand{align-items:flex-start;border:0;padding:0;min-width:0}
      .brand strong{font-size:16px}
      .dashboard{margin-top:28px;padding:16px;border-radius:28px}
      .meter-grid,.service-grid,.form-grid{grid-template-columns:1fr}
      .service-card:nth-child(2),.service-card:nth-child(3){margin-top:0}
      .timeline{grid-template-columns:1fr}
      .faq-section{padding:34px 18px;border-radius:30px}
      .cta-panel{padding:22px;border-radius:30px}
      .metrics-board{padding:18px;border-radius:30px}
      .metric-main{padding:24px;min-height:auto}
      .metric-main .num{font-size:68px}
      .hero-actions .btn,.cta-actions .btn,.form-card .btn{width:100%}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      :root{--nav-h:72px}
      .grid-container{padding-left:18px;padding-right:18px}
      .hero h1{letter-spacing:-.055em}
      .hero p,.section-lead{font-size:16px}
      .meter-number{font-size:62px}
      .big-meter{min-height:auto;padding:20px}
      .mini-meter b{font-size:28px}
      .entry-card,.compare-card,.service-card,.step{padding:20px;border-radius:24px}
      .footer-brand strong{font-size:22px}
    }

/* roulang page: category1 */
:root{
      --ink:#11110f;
      --ink-2:#1b1a17;
      --paper:#f7f3ea;
      --paper-2:#fffdf7;
      --paper-3:#f2eee4;
      --muted:#6b675e;
      --line:rgba(20,20,17,.12);
      --line-strong:rgba(20,20,17,.2);
      --cyan:#32d6a0;
      --cyan-soft:rgba(50,214,160,.16);
      --amber:#f0b35a;
      --amber-soft:rgba(240,179,90,.18);
      --white:#f8f5ec;
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-sm:12px;
      --shadow:0 24px 70px rgba(17,17,15,.09);
      --shadow-soft:0 14px 42px rgba(17,17,15,.06);
      --ease:all .24s ease;
      --max:1220px;
    }

    *,
    *::before,
    *::after{box-sizing:border-box}

    html{
      scroll-behavior:smooth;
      text-size-adjust:100%;
    }

    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 6%, rgba(50,214,160,.12), transparent 28%),
        radial-gradient(circle at 92% 0%, rgba(240,179,90,.16), transparent 26%),
        linear-gradient(180deg,var(--paper),#f5efe4 48%,var(--paper));
      line-height:1.72;
      overflow-x:hidden;
    }

    a{
      color:inherit;
      text-decoration:none;
      transition:var(--ease);
    }

    img{
      max-width:100%;
      height:auto;
      display:block;
    }

    button,
    input,
    select,
    textarea{
      font:inherit;
    }

    button{cursor:pointer}

    ::selection{
      color:var(--ink);
      background:var(--cyan);
    }

    :focus-visible{
      outline:3px solid rgba(50,214,160,.52);
      outline-offset:4px;
      border-radius:12px;
    }

    .grid-container{
      max-width:var(--max);
      padding-left:24px;
      padding-right:24px;
    }

    .section{
      padding:96px 0;
      position:relative;
    }

    .section-tight{padding:72px 0}

    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:8px 13px;
      border:1px solid var(--line);
      border-radius:999px;
      color:var(--muted);
      font-size:13px;
      letter-spacing:.03em;
      background:rgba(255,253,247,.72);
    }

    .section-kicker::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 6px rgba(50,214,160,.13);
    }

    h1,h2,h3,h4,p{margin-top:0}

    h1,h2,h3{
      color:var(--ink);
      letter-spacing:-.055em;
      line-height:1.08;
      font-weight:800;
    }

    h1{
      font-size:clamp(38px,5.2vw,64px);
      margin-bottom:22px;
    }

    h2{
      font-size:clamp(32px,4vw,48px);
      margin-bottom:18px;
    }

    h3{
      font-size:clamp(22px,2.3vw,29px);
      margin-bottom:12px;
    }

    p{
      color:var(--muted);
      font-size:16.5px;
    }

    .lead{
      font-size:18px;
      color:#514e47;
      max-width:720px;
      line-height:1.82;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,243,234,.94);
      border-bottom:1px solid var(--line);
      backdrop-filter:blur(16px);
    }

    .nav-wrap{
      max-width:var(--max);
      margin:0 auto;
      padding:0 24px;
      min-height:84px;
      display:flex;
      align-items:center;
      justify-content:center;
      position:relative;
    }

    .nav-shell{
      width:100%;
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:22px;
    }

    .nav-side{
      display:flex;
      align-items:center;
      gap:12px;
    }

    .nav-side.left{justify-content:flex-start}
    .nav-side.right{justify-content:flex-end}

    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:9px 14px;
      border-radius:999px;
      color:#403d36;
      font-size:14px;
      font-weight:700;
      border:1px solid transparent;
    }

    .nav-link:hover{
      color:var(--ink);
      background:rgba(17,17,15,.05);
      border-color:var(--line);
      transform:translateY(-1px);
    }

    .nav-link.active{
      color:var(--ink);
      background:var(--paper-2);
      border-color:var(--line-strong);
      box-shadow:0 8px 24px rgba(17,17,15,.06);
    }

    .nav-link.active::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:4px;
      width:5px;
      height:5px;
      border-radius:50%;
      transform:translateX(-50%);
      background:var(--cyan);
    }

    .nav-cta{
      background:var(--ink);
      color:var(--white);
      border-color:var(--ink);
      padding-left:18px;
      padding-right:18px;
    }

    .nav-cta:hover{
      background:var(--cyan);
      color:var(--ink);
      border-color:var(--cyan);
    }

    .brand{
      display:flex;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      padding:8px 18px;
      min-width:232px;
      border-left:1px solid var(--line);
      border-right:1px solid var(--line);
      text-align:center;
    }

    .brand strong{
      font-size:18px;
      line-height:1.15;
      letter-spacing:-.035em;
      color:var(--ink);
    }

    .brand span{
      margin-top:3px;
      font-size:12px;
      color:var(--muted);
      letter-spacing:.12em;
    }

    .mobile-toggle{
      display:none;
      align-items:center;
      justify-content:center;
      width:46px;
      height:42px;
      border-radius:999px;
      border:1px solid var(--line);
      background:var(--paper-2);
      color:var(--ink);
    }

    .mobile-toggle span,
    .mobile-toggle span::before,
    .mobile-toggle span::after{
      display:block;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:999px;
      transition:var(--ease);
      content:"";
    }

    .mobile-toggle span::before{transform:translateY(-6px)}
    .mobile-toggle span::after{transform:translateY(4px)}

    .mobile-toggle.is-open span{background:transparent}
    .mobile-toggle.is-open span::before{transform:translateY(1px) rotate(45deg);background:var(--ink)}
    .mobile-toggle.is-open span::after{transform:translateY(-1px) rotate(-45deg);background:var(--ink)}

    .topic-hero{
      padding:82px 0 58px;
      position:relative;
      overflow:hidden;
    }

    .topic-hero::before{
      content:"";
      position:absolute;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(17,17,15,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(17,17,15,.045) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 88%);
    }

    .topic-hero-card{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg,rgba(255,253,247,.94),rgba(242,238,228,.84)),
        radial-gradient(circle at 80% 20%,rgba(50,214,160,.16),transparent 32%);
      box-shadow:var(--shadow);
      padding:42px;
      overflow:hidden;
    }

    .topic-hero-card::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-100px;
      width:310px;
      height:310px;
      border-radius:50%;
      border:1px solid rgba(50,214,160,.22);
      box-shadow:inset 0 0 0 22px rgba(50,214,160,.045);
      pointer-events:none;
    }

    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }

    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.74);
      color:#47443d;
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }

    .tag.hot{
      background:var(--amber-soft);
      border-color:rgba(240,179,90,.38);
      color:#6d4a13;
    }

    .summary-panel{
      position:relative;
      z-index:1;
      border-radius:28px;
      padding:24px;
      background:var(--ink);
      color:var(--white);
      min-height:100%;
      overflow:hidden;
    }

    .summary-panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 80% 8%, rgba(50,214,160,.22), transparent 26%),
        linear-gradient(90deg, rgba(248,245,236,.07) 1px, transparent 1px);
      background-size:auto, 34px 34px;
      opacity:.9;
    }

    .summary-panel > *{position:relative;z-index:1}

    .summary-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:20px;
    }

    .summary-title strong{
      font-size:20px;
      color:var(--white);
      letter-spacing:-.03em;
    }

    .pulse-dot{
      width:13px;
      height:13px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 9px rgba(50,214,160,.15);
      flex:0 0 auto;
    }

    .metric-stack{
      display:grid;
      gap:14px;
    }

    .metric-row{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:16px;
      align-items:center;
      padding:14px;
      border:1px solid rgba(248,245,236,.14);
      border-radius:18px;
      background:rgba(248,245,236,.055);
    }

    .metric-row b{
      font-size:34px;
      line-height:1;
      color:var(--amber);
      letter-spacing:-.05em;
    }

    .metric-row span{
      display:block;
      color:rgba(248,245,236,.82);
      font-size:14px;
      line-height:1.55;
    }

    .pill-filter{
      padding:28px 0 8px;
    }

    .filter-scroll{
      display:flex;
      gap:12px;
      overflow-x:auto;
      padding:4px 2px 14px;
      scrollbar-width:thin;
    }

    .filter-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      min-height:42px;
      padding:10px 16px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.75);
      color:#4d4941;
      font-size:14px;
      font-weight:800;
    }

    .filter-pill:hover,
    .filter-pill.active{
      border-color:rgba(50,214,160,.55);
      background:var(--cyan-soft);
      color:var(--ink);
      transform:translateY(-2px);
    }

    .guide-layout{
      align-items:flex-start;
    }

    .side-index{
      position:sticky;
      top:108px;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,253,247,.82);
      padding:22px;
      box-shadow:var(--shadow-soft);
    }

    .side-index h2{
      font-size:24px;
      margin-bottom:8px;
    }

    .index-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }

    .index-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 13px;
      border-radius:14px;
      border:1px solid transparent;
      color:#514e47;
      font-size:14px;
      font-weight:800;
      background:rgba(242,238,228,.72);
    }

    .index-list a:hover{
      border-color:rgba(50,214,160,.38);
      color:var(--ink);
      background:rgba(50,214,160,.1);
    }

    .mini-meter{
      margin-top:22px;
      padding-top:20px;
      border-top:1px solid var(--line);
    }

    .meter-line{
      margin-top:12px;
    }

    .meter-line span{
      display:flex;
      justify-content:space-between;
      gap:12px;
      color:var(--muted);
      font-size:13px;
      font-weight:700;
      margin-bottom:7px;
    }

    .bar{
      height:8px;
      border-radius:999px;
      background:rgba(17,17,15,.08);
      overflow:hidden;
    }

    .bar i{
      display:block;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--amber));
    }

    .content-flow{
      display:grid;
      gap:22px;
    }

    .feature-guide{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:var(--ink);
      box-shadow:var(--shadow);
      color:var(--white);
      padding:32px;
      min-height:310px;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:28px;
      align-items:stretch;
    }

    .feature-guide::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 84% 18%,rgba(50,214,160,.22),transparent 30%),
        linear-gradient(120deg,transparent 0 55%,rgba(240,179,90,.09) 55% 100%);
      pointer-events:none;
    }

    .feature-guide > *{position:relative;z-index:1}

    .feature-guide h2,
    .feature-guide h3{
      color:var(--white);
    }

    .feature-guide p{
      color:rgba(248,245,236,.76);
    }

    .guide-visual{
      border:1px solid rgba(248,245,236,.15);
      border-radius:26px;
      background:rgba(248,245,236,.055);
      padding:20px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:220px;
    }

    .frame-strip{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:9px;
    }

    .frame{
      height:72px;
      border-radius:14px;
      background:
        linear-gradient(135deg,rgba(50,214,160,.24),rgba(248,245,236,.06)),
        repeating-linear-gradient(90deg,rgba(248,245,236,.11) 0 1px,transparent 1px 10px);
      border:1px solid rgba(248,245,236,.14);
      position:relative;
      overflow:hidden;
    }

    .frame::after{
      content:"";
      position:absolute;
      left:-40%;
      top:0;
      width:40%;
      height:100%;
      background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);
      animation:scan 4.2s ease-in-out infinite;
    }

    @keyframes scan{
      0%,18%{transform:translateX(0)}
      55%,100%{transform:translateX(350%)}
    }

    .time-rail{
      margin-top:18px;
      height:10px;
      border-radius:999px;
      background:rgba(248,245,236,.13);
      overflow:hidden;
    }

    .time-rail i{
      display:block;
      width:72%;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--cyan),var(--amber));
    }

    .guide-card-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:22px;
    }

    .guide-card{
      position:relative;
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      background:rgba(255,253,247,.78);
      padding:24px;
      min-height:238px;
      box-shadow:var(--shadow-soft);
      transition:var(--ease);
      overflow:hidden;
    }

    .guide-card::before{
      content:"";
      position:absolute;
      right:18px;
      top:18px;
      width:84px;
      height:84px;
      border-radius:24px;
      background:
        linear-gradient(135deg,rgba(50,214,160,.14),transparent),
        repeating-linear-gradient(135deg,rgba(17,17,15,.08) 0 1px,transparent 1px 9px);
      opacity:.8;
    }

    .guide-card:hover{
      transform:translateY(-4px);
      border-color:rgba(50,214,160,.52);
      box-shadow:0 22px 62px rgba(17,17,15,.11);
    }

    .guide-card h3{
      padding-right:82px;
      font-size:23px;
      margin-bottom:10px;
    }

    .guide-card p{
      min-height:58px;
      margin-bottom:18px;
    }

    .card-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      margin-bottom:18px;
    }

    .meta-chip{
      padding:6px 10px;
      border-radius:999px;
      background:rgba(17,17,15,.055);
      color:#555047;
      font-size:12px;
      font-weight:800;
    }

    .meta-chip.accent{
      background:var(--cyan-soft);
      color:#14563e;
    }

    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--ink);
      font-weight:900;
      font-size:14px;
    }

    .text-link::after{
      content:"→";
      transition:var(--ease);
    }

    .text-link:hover{
      color:#128a64;
    }

    .text-link:hover::after{
      transform:translateX(4px);
    }

    .check-section{
      background:var(--paper-2);
      border-top:1px solid var(--line);
      border-bottom:1px solid var(--line);
    }

    .check-panel{
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 20% 10%,rgba(240,179,90,.12),transparent 28%),
        linear-gradient(135deg,#fffdf7,#f2eee4);
      box-shadow:var(--shadow);
      padding:36px;
      overflow:hidden;
    }

    .checklist{
      display:grid;
      grid-template-columns:repeat(5,minmax(0,1fr));
      gap:14px;
      margin-top:30px;
    }

    .check-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,253,247,.72);
      padding:18px;
      transition:var(--ease);
    }

    .check-item:hover{
      transform:translateY(-4px);
      border-color:rgba(50,214,160,.45);
    }

    .check-icon{
      width:38px;
      height:38px;
      display:flex;
      align-items:center;
      justify-content:center;
      border-radius:14px;
      background:var(--ink);
      color:var(--cyan);
      font-weight:900;
      margin-bottom:14px;
    }

    .check-item strong{
      display:block;
      color:var(--ink);
      font-size:16px;
      margin-bottom:7px;
    }

    .check-item span{
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }

    .rights-block{
      background:var(--ink);
      color:var(--white);
      position:relative;
      overflow:hidden;
    }

    .rights-block::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 88% 18%,rgba(50,214,160,.2),transparent 30%),
        linear-gradient(rgba(248,245,236,.055) 1px,transparent 1px);
      background-size:auto, 36px 36px;
      opacity:.9;
    }

    .rights-block .grid-container{position:relative;z-index:1}

    .rights-block h2,
    .rights-block h3{color:var(--white)}

    .rights-block p{color:rgba(248,245,236,.74)}

    .rights-steps{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
      margin-top:32px;
    }

    .right-step{
      border:1px solid rgba(248,245,236,.15);
      border-radius:24px;
      background:rgba(248,245,236,.055);
      padding:22px;
      min-height:210px;
      transition:var(--ease);
    }

    .right-step:hover{
      transform:translateY(-4px);
      border-color:rgba(50,214,160,.45);
      background:rgba(248,245,236,.08);
    }

    .step-num{
      font-size:38px;
      line-height:1;
      letter-spacing:-.06em;
      font-weight:900;
      color:var(--amber);
      margin-bottom:20px;
    }

    .faq-wrap{
      max-width:960px;
      margin:34px auto 0;
    }

    .accordion{
      background:transparent;
    }

    .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--line);
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,253,247,.78);
      box-shadow:0 10px 34px rgba(17,17,15,.045);
    }

    .accordion-title{
      border:0 !important;
      color:var(--ink) !important;
      font-size:17px;
      font-weight:900;
      padding:20px 56px 20px 22px;
      background:transparent;
    }

    .accordion-title:hover,
    .accordion-title:focus{
      background:rgba(50,214,160,.08);
      color:var(--ink);
    }

    .accordion-title::before{
      right:22px;
      color:var(--cyan);
      font-size:22px;
      margin-top:-12px;
    }

    .accordion-content{
      border:0 !important;
      background:rgba(255,253,247,.58);
      padding:0 22px 22px;
      color:var(--muted);
      font-size:15.5px;
      line-height:1.8;
    }

    .cta-section{
      padding:92px 0;
    }

    .contact-panel{
      border-radius:var(--radius-xl);
      border:1px solid var(--line);
      background:
        radial-gradient(circle at 14% 12%,rgba(50,214,160,.14),transparent 28%),
        linear-gradient(135deg,var(--paper-2),var(--paper-3));
      box-shadow:var(--shadow);
      padding:38px;
      overflow:hidden;
    }

    .benefit-list{
      list-style:none;
      padding:0;
      margin:24px 0 0;
      display:grid;
      gap:12px;
    }

    .benefit-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#46433c;
      font-weight:700;
    }

    .benefit-list li::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--cyan);
      box-shadow:0 0 0 6px rgba(50,214,160,.14);
      flex:0 0 auto;
      margin-top:9px;
    }

    .form-card{
      border-radius:28px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.88);
      padding:26px;
      box-shadow:var(--shadow-soft);
    }

    .form-card label{
      color:var(--ink);
      font-size:13px;
      font-weight:900;
      margin-bottom:7px;
    }

    .form-card input,
    .form-card select,
    .form-card textarea{
      border:1px solid var(--line);
      border-radius:16px;
      background:#fffdf7;
      box-shadow:none;
      min-height:48px;
      color:var(--ink);
      padding:12px 14px;
      transition:var(--ease);
    }

    .form-card textarea{
      min-height:104px;
      resize:vertical;
    }

    .form-card input:focus,
    .form-card select:focus,
    .form-card textarea:focus{
      border-color:rgba(50,214,160,.65);
      box-shadow:0 0 0 4px rgba(50,214,160,.12);
      background:#fff;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:9px;
      min-height:48px;
      padding:13px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:900;
      font-size:15px;
      line-height:1;
      transition:var(--ease);
    }

    .btn-primary{
      background:var(--ink);
      color:var(--white);
      border-color:var(--ink);
    }

    .btn-primary:hover{
      background:var(--cyan);
      border-color:var(--cyan);
      color:var(--ink);
      transform:translateY(-2px);
      box-shadow:0 14px 32px rgba(50,214,160,.22);
    }

    .btn-secondary{
      background:rgba(255,253,247,.72);
      color:var(--ink);
      border-color:var(--line);
    }

    .btn-secondary:hover{
      background:var(--paper-2);
      border-color:rgba(50,214,160,.42);
      transform:translateY(-2px);
    }

    .form-note{
      margin:14px 0 0;
      font-size:12.5px;
      color:var(--muted);
      line-height:1.65;
    }

    .site-footer{
      background:var(--ink);
      color:var(--white);
      padding:54px 0 28px;
      position:relative;
      overflow:hidden;
    }

    .site-footer::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 12% 0%,rgba(50,214,160,.16),transparent 24%),
        repeating-linear-gradient(90deg,rgba(248,245,236,.055) 0 1px,transparent 1px 28px);
      opacity:.8;
      pointer-events:none;
    }

    .site-footer .grid-container{position:relative;z-index:1}

    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);
      gap:36px;
      padding-bottom:32px;
      border-bottom:1px solid rgba(248,245,236,.14);
    }

    .footer-brand strong{
      display:block;
      color:var(--white);
      font-size:24px;
      letter-spacing:-.04em;
      margin-bottom:12px;
    }

    .footer-brand p{
      max-width:610px;
      color:rgba(248,245,236,.72);
      margin:0;
    }

    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      justify-content:flex-end;
      align-content:flex-start;
    }

    .footer-links a{
      color:rgba(248,245,236,.76);
      border:1px solid rgba(248,245,236,.12);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:800;
    }

    .footer-links a:hover{
      color:var(--ink);
      background:var(--cyan);
      border-color:var(--cyan);
    }

    .copyright{
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      padding-top:24px;
      color:rgba(248,245,236,.58);
      font-size:13px;
    }

    @media (max-width:1024px){
      .section{padding:78px 0}
      .topic-hero-card{padding:32px}
      .feature-guide{grid-template-columns:1fr}
      .checklist{grid-template-columns:repeat(2,minmax(0,1fr))}
      .rights-steps{grid-template-columns:repeat(2,minmax(0,1fr))}
      .side-index{position:relative;top:auto;margin-bottom:24px}
    }

    @media (max-width:820px){
      .nav-wrap{
        min-height:auto;
        padding-top:14px;
        padding-bottom:14px;
        justify-content:space-between;
      }

      .mobile-toggle{display:flex}

      .nav-shell{
        position:absolute;
        left:24px;
        right:24px;
        top:70px;
        display:none;
        grid-template-columns:1fr;
        gap:10px;
        padding:18px;
        border:1px solid var(--line);
        border-radius:24px;
        background:rgba(255,253,247,.98);
        box-shadow:var(--shadow);
      }

      .nav-shell.is-open{display:grid}

      .nav-side,
      .nav-side.left,
      .nav-side.right{
        justify-content:stretch;
        flex-direction:column;
        align-items:stretch;
        gap:8px;
      }

      .nav-link{
        width:100%;
        justify-content:center;
      }

      .brand{
        order:-1;
        min-width:auto;
        width:100%;
        border:1px solid var(--line);
        border-radius:18px;
        background:rgba(247,243,234,.8);
      }

      .mobile-brand{
        display:flex;
        flex-direction:column;
        align-items:flex-start;
        line-height:1.1;
      }

      .mobile-brand strong{
        font-size:17px;
        letter-spacing:-.04em;
      }

      .mobile-brand span{
        font-size:12px;
        color:var(--muted);
        margin-top:4px;
      }

      .topic-hero{padding-top:42px}
      .guide-card-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }

    @media (min-width:821px){
      .mobile-brand{display:none}
    }

    @media (max-width:640px){
      .grid-container{
        padding-left:18px;
        padding-right:18px;
      }

      .nav-wrap{
        padding-left:18px;
        padding-right:18px;
      }

      .nav-shell{
        left:18px;
        right:18px;
      }

      .topic-hero-card,
      .check-panel,
      .contact-panel{
        padding:24px;
        border-radius:26px;
      }

      .summary-panel{margin-top:20px}
      .metric-row b{font-size:30px}
      .checklist{grid-template-columns:1fr}
      .rights-steps{grid-template-columns:1fr}
      .feature-guide{padding:24px;border-radius:26px}
      .frame-strip{grid-template-columns:repeat(3,1fr)}
      .frame{height:62px}
      .cta-section{padding:70px 0}
      .btn{width:100%}
      .copyright{flex-direction:column}
    }