/* roulang page: index */
:root{
      --primary:#0F766E;
      --primary-strong:#0B5F58;
      --primary-dark:#0B3D3A;
      --secondary:#D97706;
      --secondary-dark:#B8610A;
      --bg:#F7F3EA;
      --bg-soft:#EDF7F4;
      --bg-paper:#FFFCF6;
      --card:#FFFFFF;
      --text:#172321;
      --muted:#45524E;
      --weak:#7A8580;
      --border:rgba(15,118,110,.16);
      --border-strong:rgba(15,118,110,.28);
      --shadow:0 18px 45px rgba(20,40,34,.08);
      --shadow-hover:0 24px 62px rgba(20,40,34,.13);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-pill:999px;
      --container:1200px;
      --ease:all .24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      background:
        radial-gradient(circle at 8% 5%, rgba(15,118,110,.10), transparent 30%),
        radial-gradient(circle at 88% 12%, rgba(217,119,6,.10), transparent 28%),
        var(--bg);
      color:var(--text);
      line-height:1.78;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(15,118,110,.35);outline-offset:3px}
    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .section{padding:86px 0}
    .section-tight{padding:62px 0}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 13px;border-radius:var(--radius-pill);
      background:rgba(15,118,110,.10);border:1px solid var(--border);
      color:var(--primary);font-weight:800;font-size:13px;letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";width:8px;height:8px;border-radius:50%;
      background:var(--secondary);box-shadow:0 0 0 5px rgba(217,119,6,.12);
    }
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:26px;margin-bottom:34px}
    .section-head h2{font-size:36px;line-height:1.22;letter-spacing:-.02em;color:var(--text)}
    .section-head p{max-width:560px;color:var(--muted)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:9px;
      min-height:46px;padding:12px 19px;border-radius:var(--radius-pill);
      font-weight:800;font-size:15px;transition:var(--ease);white-space:nowrap;
      border:1px solid transparent;
    }
    .btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 28px rgba(15,118,110,.20)}
    .btn-primary:hover{background:var(--primary-strong);transform:translateY(-2px);box-shadow:0 18px 36px rgba(15,118,110,.26)}
    .btn-secondary{background:#E6F3EF;color:var(--primary);border-color:rgba(15,118,110,.22)}
    .btn-secondary:hover{background:#D8EEE8;transform:translateY(-2px)}
    .btn-accent{background:var(--secondary);color:#fff}
    .btn-accent:hover{background:var(--secondary-dark);transform:translateY(-2px)}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:5px 10px;border-radius:var(--radius-pill);
      background:rgba(15,118,110,.10);color:var(--primary);
      font-size:12px;font-weight:800;border:1px solid var(--border);
    }
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(247,243,234,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(15,118,110,.12);
    }
    .nav-main{
      display:grid;grid-template-columns:auto minmax(280px,1fr) auto;
      gap:22px;align-items:center;padding:16px 0 12px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:245px}
    .brand-mark{
      width:46px;height:46px;border-radius:16px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),#1BA092);
      color:#fff;font-weight:900;letter-spacing:-.04em;
      box-shadow:0 14px 30px rgba(15,118,110,.22);
    }
    .brand-title{font-weight:900;font-size:18px;line-height:1.2;color:var(--text)}
    .brand-sub{font-size:12px;color:var(--weak);margin-top:2px}
    .search-wrap{
      position:relative;display:flex;align-items:center;
      background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);
      padding:0 16px;box-shadow:0 8px 22px rgba(20,40,34,.04);
    }
    .search-wrap span{color:var(--primary);font-weight:900;margin-right:8px}
    .search-wrap input{
      width:100%;border:0;background:transparent;height:45px;color:var(--text);outline:none;
    }
    .search-wrap:focus-within{border-color:var(--primary);box-shadow:0 0 0 5px rgba(15,118,110,.10)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .nav-tabs-shell{border-top:1px solid rgba(15,118,110,.10)}
    .nav-tabs{
      display:flex;gap:10px;align-items:center;overflow-x:auto;scrollbar-width:none;padding:12px 0 14px;
    }
    .nav-tabs::-webkit-scrollbar{display:none}
    .nav-tab{
      flex:0 0 auto;padding:9px 16px;border-radius:var(--radius-pill);
      border:1px solid var(--border);background:rgba(255,255,255,.48);
      color:var(--muted);font-weight:800;font-size:14px;
    }
    .nav-tab:hover{color:var(--primary);background:#fff;border-color:var(--border-strong)}
    .nav-tab.active{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 10px 24px rgba(15,118,110,.18)}
    .hero{padding:70px 0 50px}
    .hero-grid{
      display:grid;grid-template-columns:minmax(0,1.18fr) minmax(360px,.82fr);
      gap:42px;align-items:center;
    }
    .hero-title{
      margin-top:18px;font-size:54px;line-height:1.12;letter-spacing:-.035em;
      max-width:760px;color:var(--text);
    }
    .hero-title .mark{color:var(--primary);position:relative}
    .hero-text{margin-top:22px;max-width:690px;color:var(--muted);font-size:18px;line-height:1.86}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .trust-note{margin-top:16px;color:var(--weak);font-size:14px}
    .micro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;max-width:720px}
    .micro{
      background:rgba(255,255,255,.72);border:1px solid var(--border);border-radius:18px;
      padding:14px 15px;box-shadow:0 12px 26px rgba(20,40,34,.05)
    }
    .micro strong{display:block;color:var(--primary);font-size:18px;line-height:1}
    .micro span{display:block;margin-top:5px;color:var(--weak);font-size:13px}
    .hero-panel{
      position:relative;border-radius:var(--radius-xl);padding:22px;min-height:560px;
      background:
        linear-gradient(180deg,rgba(11,61,58,.30),rgba(11,61,58,.08)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat,
        linear-gradient(135deg,#D7EEE7,#FFF5DF);
      overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.58);
    }
    .hero-panel::after{
      content:"";position:absolute;inset:16px;border-radius:24px;border:1px solid rgba(255,255,255,.38);pointer-events:none;
    }
    .status-card,.path-card,.quick-card{
      position:relative;z-index:1;background:rgba(255,252,246,.92);
      border:1px solid rgba(255,255,255,.72);border-radius:22px;
      padding:20px;box-shadow:0 18px 42px rgba(15,35,31,.14);
    }
    .status-card{margin-left:34px}
    .panel-top{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:16px}
    .status-dot{display:flex;align-items:center;gap:7px;color:#16A34A;font-weight:800;font-size:13px}
    .status-dot::before{content:"";width:9px;height:9px;border-radius:50%;background:#16A34A;box-shadow:0 0 0 5px rgba(22,163,74,.14)}
    .path-card{margin-top:16px;margin-right:30px}
    .step{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;padding:12px 0;border-bottom:1px dashed rgba(15,118,110,.20)}
    .step:last-child{border-bottom:0}
    .step-num{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;font-size:13px;font-weight:900}
    .step strong{display:block;line-height:1.4}
    .step span{color:var(--weak);font-size:13px}
    .quick-card{margin-top:16px;margin-left:56px}
    .pill-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .pill-cloud span{padding:6px 10px;border-radius:var(--radius-pill);background:#EDF7F4;color:var(--primary);font-size:12px;font-weight:800}
    .highlight-grid{
      display:grid;grid-template-columns:1.15fr .85fr .85fr;grid-template-rows:auto auto;gap:18px;
    }
    .feature-card{
      background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
      padding:26px;box-shadow:var(--shadow);transition:var(--ease);position:relative;overflow:hidden;
    }
    .feature-card:hover,.water-card:hover,.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
    .feature-card.large{grid-row:span 2;background:linear-gradient(145deg,#fff,#EFF8F4)}
    .card-num{font-size:13px;font-weight:900;color:var(--secondary);letter-spacing:.08em}
    .feature-card h3{margin:14px 0 9px;font-size:23px;line-height:1.35}
    .feature-card p{color:var(--muted)}
    .feature-list{margin-top:20px;display:grid;gap:10px}
    .feature-list li{list-style:none;display:flex;gap:9px;color:var(--muted)}
    .feature-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary);margin-top:10px;flex:0 0 auto}
    .category-entry{
      background:var(--primary-dark);border-radius:var(--radius-xl);padding:34px;
      display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;
      color:#E9F4EF;overflow:hidden;position:relative;
    }
    .category-entry::before{
      content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;
      background:rgba(217,119,6,.20);
    }
    .category-entry h2{font-size:34px;line-height:1.25;margin-bottom:12px}
    .category-entry p{color:#CFE4DD;max-width:660px}
    .route-mini{display:grid;gap:12px;position:relative;z-index:1}
    .route-mini div{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:14px 16px}
    .route-mini strong{display:block;color:#fff}
    .route-mini span{font-size:13px;color:#CFE4DD}
    .waterfall{columns:3 300px;column-gap:20px}
    .water-card{
      break-inside:avoid;margin-bottom:20px;background:var(--card);border:1px solid var(--border);
      border-radius:24px;overflow:hidden;box-shadow:var(--shadow);transition:var(--ease);
    }
    .water-card:nth-child(2n){margin-top:24px}
    .cover{
      min-height:190px;background:linear-gradient(135deg,#D9EEE8,#F7E8CE);position:relative;overflow:hidden;
    }
    .cover.tall{min-height:250px}
    .cover img{width:100%;height:100%;min-height:inherit;object-fit:cover}
    .cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(11,61,58,.16))}
    .water-body{padding:20px}
    .water-body h3{font-size:21px;line-height:1.35;margin:12px 0 8px}
    .water-body p{color:var(--muted);font-size:15px;line-height:1.7}
    .meta{display:flex;justify-content:space-between;gap:10px;margin-top:14px;color:var(--weak);font-size:12px}
    .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .plan-card{
      background:var(--bg-paper);border:1px solid var(--border);border-radius:24px;
      padding:26px;box-shadow:var(--shadow);transition:var(--ease);position:relative;
    }
    .plan-card.recommend{background:#fff;border-color:rgba(217,119,6,.45)}
    .recommend-tag{
      position:absolute;top:18px;right:18px;background:var(--secondary);color:#fff;
      border-radius:var(--radius-pill);padding:5px 10px;font-size:12px;font-weight:900;
    }
    .plan-card h3{font-size:23px;margin-bottom:10px}
    .plan-card p{color:var(--muted)}
    .plan-list{margin:18px 0;display:grid;gap:10px}
    .plan-list li{list-style:none;color:var(--muted);padding-left:24px;position:relative}
    .plan-list li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:900}
    .faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:34px;align-items:start}
    .faq-intro{
      background:linear-gradient(145deg,#EAF6F2,#FFFCF6);
      border:1px solid var(--border);border-radius:var(--radius-xl);padding:30px;box-shadow:var(--shadow);
    }
    .faq-intro h2{font-size:34px;line-height:1.24;margin:12px 0}
    .faq-list{display:grid;gap:14px}
    details{
      background:#fff;border:1px solid var(--border);border-radius:18px;
      padding:0 20px;box-shadow:0 12px 28px rgba(20,40,34,.05);
    }
    details[open]{border-color:var(--border-strong)}
    summary{
      list-style:none;cursor:pointer;font-weight:850;padding:18px 28px 18px 0;
      position:relative;color:var(--text)
    }
    summary::-webkit-details-marker{display:none}
    summary::after{content:"+";position:absolute;right:0;top:18px;color:var(--primary);font-size:22px;line-height:1}
    details[open] summary::after{content:"–"}
    details p{padding:0 0 18px;color:var(--muted);line-height:1.8}
    .cta-contact{
      display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:stretch;
      background:
        linear-gradient(120deg,rgba(11,61,58,.92),rgba(15,118,110,.82)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-radius:var(--radius-xl);padding:34px;color:#fff;box-shadow:var(--shadow);
    }
    .cta-contact h2{font-size:36px;line-height:1.22;margin:12px 0}
    .cta-contact p{color:#D7ECE6}
    .contact-side{display:grid;gap:14px;margin-top:26px}
    .contact-side div{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.15);border-radius:18px;padding:15px}
    .contact-form{
      background:rgba(255,252,246,.96);border-radius:24px;padding:24px;color:var(--text);
      border:1px solid rgba(255,255,255,.65);
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:grid;gap:7px;margin-bottom:14px}
    .field.full{grid-column:1/-1}
    label{font-size:13px;font-weight:850;color:var(--muted)}
    input,select,textarea{
      width:100%;border:1px solid #DDE7E2;background:#fff;border-radius:15px;
      padding:12px 13px;color:var(--text);outline:none;transition:var(--ease);
    }
    textarea{min-height:110px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 5px rgba(15,118,110,.10)}
    .site-footer{margin-top:88px;background:#0B3D3A;color:#E9F4EF}
    .footer-grid{
      display:grid;grid-template-columns:1.25fr .75fr .75fr 1.05fr;gap:30px;padding:54px 0 34px;
    }
    .footer-logo{font-size:20px;font-weight:950;margin-bottom:10px}
    .footer-grid p,.footer-grid li{color:#C8DED7;font-size:14px}
    .footer-grid h3{font-size:16px;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links li{list-style:none}
    .footer-links a:hover{color:#9FE4D5;text-decoration:underline}
    .footer-bottom{
      border-top:1px solid rgba(255,255,255,.12);padding:18px 0;
      display:flex;justify-content:space-between;gap:18px;color:#BCD5CE;font-size:13px;
    }
    @media (prefers-reduced-motion:reduce){
      *{scroll-behavior:auto!important;transition:none!important}
    }
    @media (max-width:1080px){
      .nav-main{grid-template-columns:1fr auto}
      .search-wrap{grid-column:1/-1;order:3}
      .hero-grid,.category-entry,.faq-wrap,.cta-contact{grid-template-columns:1fr}
      .hero-panel{min-height:auto}
      .plans{grid-template-columns:1fr}
      .highlight-grid{grid-template-columns:1fr 1fr}
      .feature-card.large{grid-column:1/-1;grid-row:auto}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:760px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:58px 0}
      .nav-main{gap:12px}
      .brand{min-width:0}
      .brand-mark{width:42px;height:42px;border-radius:14px}
      .brand-title{font-size:16px}
      .brand-sub{display:none}
      .nav-actions .btn-secondary{display:none}
      .nav-actions .btn{padding:10px 13px;font-size:13px;min-height:40px}
      .hero{padding:46px 0 34px}
      .hero-title{font-size:36px;line-height:1.16}
      .hero-text{font-size:16px}
      .hero-cta{flex-direction:column;align-items:stretch}
      .micro-grid{grid-template-columns:1fr}
      .status-card,.path-card,.quick-card{margin-left:0;margin-right:0}
      .section-head{display:block}
      .section-head h2,.category-entry h2,.faq-intro h2,.cta-contact h2{font-size:29px}
      .section-head p{margin-top:10px}
      .highlight-grid{grid-template-columns:1fr}
      .category-entry{padding:24px}
      .waterfall{columns:1}
      .water-card:nth-child(2n){margin-top:0}
      .form-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media (max-width:480px){
      .nav-actions .btn-primary{max-width:150px;overflow:hidden;text-overflow:ellipsis}
      .hero-panel{padding:14px;border-radius:22px}
      .status-card,.path-card,.quick-card,.feature-card,.plan-card,.contact-form{padding:18px}
      .cover,.cover.tall{min-height:170px}
    }

/* roulang page: category1 */
:root{
      --primary:#0F766E;
      --primary-dark:#0B3D3A;
      --primary-hover:#0B5F58;
      --secondary:#D97706;
      --secondary-hover:#B8610A;
      --bg:#F7F3EA;
      --bg-soft:#EDF7F4;
      --bg-panel:#FFFCF6;
      --card:#FFFFFF;
      --text:#172321;
      --muted:#45524E;
      --weak:#7A8580;
      --border:rgba(15,118,110,.16);
      --border-strong:rgba(15,118,110,.28);
      --success:#16A34A;
      --warning:#B45309;
      --shadow:0 18px 45px rgba(20,40,34,.08);
      --shadow-hover:0 22px 60px rgba(20,40,34,.12);
      --radius-xl:28px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-pill:999px;
      --container:1200px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:
        radial-gradient(circle at 12% 4%, rgba(15,118,110,.10), transparent 28%),
        radial-gradient(circle at 92% 14%, rgba(217,119,6,.08), transparent 26%),
        linear-gradient(180deg,var(--bg),#FBF8F0 54%,var(--bg));
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    ::selection{background:rgba(15,118,110,.18)}
    :focus-visible{
      outline:3px solid rgba(15,118,110,.35);
      outline-offset:3px;
      border-radius:12px;
    }

    .container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .section{padding:82px 0}
    .section-tight{padding:58px 0}
    .section-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:34px}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      letter-spacing:.04em;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--secondary);
      box-shadow:14px 0 0 rgba(15,118,110,.28);
    }
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,52px);line-height:1.14;letter-spacing:-.04em;margin-bottom:20px}
    h2{font-size:clamp(26px,3.2vw,38px);line-height:1.22;letter-spacing:-.03em;margin-bottom:12px}
    h3{font-size:21px;line-height:1.35;margin-bottom:10px}
    p{color:var(--muted)}
    .lead{font-size:18px;line-height:1.9;color:#3F4E49}
    .muted{color:var(--weak)}
    .text-small{font-size:14px;color:var(--weak)}

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,243,234,.92);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(15,118,110,.12);
      box-shadow:0 8px 30px rgba(20,40,34,.04);
    }
    .nav-main{
      min-height:82px;
      display:grid;
      grid-template-columns:auto minmax(260px,1fr) auto;
      gap:22px;
      align-items:center;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:13px;
      min-width:250px;
    }
    .brand-mark{
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:16px;
      color:white;
      font-size:20px;
      font-weight:900;
      letter-spacing:-.04em;
      background:
        linear-gradient(135deg,var(--primary),#159384),
        repeating-linear-gradient(90deg,rgba(255,255,255,.18) 0 1px,transparent 1px 8px);
      box-shadow:0 14px 30px rgba(15,118,110,.22);
    }
    .brand-title{display:block;font-size:18px;font-weight:900;line-height:1.2}
    .brand-sub{display:block;font-size:12px;color:var(--weak);margin-top:2px}
    .search-wrap{
      display:flex;
      align-items:center;
      gap:10px;
      background:#FFFDF8;
      border:1px solid var(--border);
      border-radius:var(--radius-pill);
      padding:10px 15px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.75);
      color:var(--primary);
      transition:.2s ease;
    }
    .search-wrap:focus-within{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(15,118,110,.12);
    }
    .search-wrap input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      font-size:14px;
    }
    .search-wrap input::placeholder{color:#87928D}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:var(--radius-pill);
      padding:12px 18px;
      border:1px solid transparent;
      cursor:pointer;
      font-weight:800;
      line-height:1.1;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      color:white;
      background:var(--primary);
      box-shadow:0 14px 30px rgba(15,118,110,.20);
    }
    .btn-primary:hover{background:var(--primary-hover);box-shadow:0 18px 38px rgba(15,118,110,.26)}
    .btn-secondary{
      color:var(--primary);
      background:#E6F3EF;
      border-color:rgba(15,118,110,.22);
    }
    .btn-secondary:hover{background:#D8EEE8}
    .btn-accent{
      color:white;
      background:var(--secondary);
      box-shadow:0 14px 28px rgba(217,119,6,.18);
    }
    .btn-accent:hover{background:var(--secondary-hover)}
    .nav-tabs-shell{
      border-top:1px solid rgba(15,118,110,.08);
      overflow-x:auto;
      scrollbar-width:none;
    }
    .nav-tabs-shell::-webkit-scrollbar{display:none}
    .nav-tabs{
      display:flex;
      gap:10px;
      padding:12px 0 14px;
      min-width:max-content;
    }
    .nav-tab{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:8px 16px;
      border-radius:var(--radius-pill);
      border:1px solid var(--border);
      background:rgba(255,252,246,.72);
      color:#31504A;
      font-size:14px;
      font-weight:800;
      transition:.2s ease;
    }
    .nav-tab:hover{border-color:var(--primary);background:#EAF6F2;color:var(--primary)}
    .nav-tab.active{
      background:var(--primary);
      color:white;
      border-color:var(--primary);
      box-shadow:0 10px 24px rgba(15,118,110,.18);
    }

    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      padding-top:28px;
      font-size:13px;
      color:var(--weak);
    }
    .breadcrumb a{color:var(--primary);font-weight:700}
    .category-hero{
      padding:42px 0 64px;
      position:relative;
    }
    .category-panel{
      position:relative;
      overflow:hidden;
      border:1px solid var(--border);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(90deg,rgba(255,252,246,.96),rgba(255,252,246,.82)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat,
        linear-gradient(135deg,#E8F5F1,#FFF7EA);
      box-shadow:var(--shadow);
      padding:42px;
    }
    .category-panel::after{
      content:"";
      position:absolute;
      inset:auto -80px -90px auto;
      width:300px;
      height:300px;
      border-radius:50%;
      background:repeating-radial-gradient(circle,rgba(15,118,110,.16) 0 2px,transparent 2px 12px);
      opacity:.55;
      pointer-events:none;
    }
    .hero-row{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1.2fr) 360px;
      gap:34px;
      align-items:end;
    }
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:24px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:7px;
      min-height:34px;
      padding:7px 13px;
      border-radius:var(--radius-pill);
      background:#FFFDF8;
      border:1px solid var(--border);
      color:#31504A;
      font-size:13px;
      font-weight:800;
    }
    .tag.active{background:#0F766E;color:white;border-color:#0F766E}
    .tag.warn{background:#FFF4E2;color:#94520B;border-color:rgba(217,119,6,.22)}
    .entry-card{
      background:rgba(255,255,255,.84);
      border:1px solid var(--border);
      border-radius:24px;
      padding:22px;
      box-shadow:0 16px 40px rgba(20,40,34,.08);
    }
    .entry-card h2{font-size:20px;margin-bottom:14px}
    .entry-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .entry-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }
    .dot{
      width:10px;
      height:10px;
      border-radius:50%;
      margin-top:8px;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(15,118,110,.10);
      flex:0 0 auto;
    }

    .guide-layout{
      display:grid;
      grid-template-columns:minmax(0,1.55fr) minmax(300px,.72fr);
      gap:30px;
      align-items:start;
    }
    .guide-stack{display:grid;gap:20px}
    .feature-card{
      background:var(--card);
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:26px;
      box-shadow:var(--shadow);
      transition:.2s ease;
    }
    .feature-card:hover{
      transform:translateY(-3px);
      border-color:rgba(15,118,110,.34);
      box-shadow:var(--shadow-hover);
    }
    .feature-large{
      display:grid;
      grid-template-columns:1fr 290px;
      gap:24px;
      align-items:center;
      background:linear-gradient(135deg,#FFFFFF,#F3FAF7);
    }
    .feature-large .cover{
      min-height:220px;
      border-radius:20px;
      overflow:hidden;
      background:linear-gradient(135deg,#CFEAE2,#FFF1D9);
      position:relative;
    }
    .feature-large img{width:100%;height:100%;min-height:220px;object-fit:cover}
    .badge{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:var(--radius-pill);
      background:#EAF6F2;
      color:var(--primary);
      border:1px solid rgba(15,118,110,.14);
      font-size:12px;
      font-weight:900;
      margin-bottom:12px;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .meta{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--weak);
      font-size:13px;
      font-weight:700;
    }
    .compact-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:20px;
    }
    .number{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:#F0F8F5;
      color:var(--primary);
      font-weight:900;
      margin-bottom:16px;
      border:1px solid rgba(15,118,110,.12);
    }
    .side-panel{
      position:sticky;
      top:132px;
      display:grid;
      gap:18px;
    }
    .side-card{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:#FFFDF8;
      padding:22px;
      box-shadow:var(--shadow);
    }
    .side-card h3{font-size:18px}
    .side-links,.check-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .side-links a{
      display:flex;
      justify-content:space-between;
      gap:14px;
      padding:10px 12px;
      border-radius:14px;
      color:#31504A;
      background:#F5FAF7;
      border:1px solid transparent;
      font-weight:800;
      font-size:14px;
      transition:.2s ease;
    }
    .side-links a:hover{border-color:var(--primary);color:var(--primary);background:#ECF7F3}
    .keyword-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .keyword-cloud span{
      padding:7px 10px;
      border-radius:999px;
      color:#31504A;
      background:#F2F7F4;
      border:1px solid var(--border);
      font-size:13px;
      font-weight:800;
    }
    .check-list li{
      position:relative;
      padding-left:26px;
      color:var(--muted);
      font-size:14px;
    }
    .check-list li::before{
      content:"✓";
      position:absolute;
      left:0;
      top:0;
      color:var(--success);
      font-weight:900;
    }

    .timeline-section{
      background:
        linear-gradient(180deg,rgba(237,247,244,.82),rgba(255,252,246,.92)),
        repeating-linear-gradient(90deg,rgba(15,118,110,.05) 0 1px,transparent 1px 60px);
      border-top:1px solid rgba(15,118,110,.10);
      border-bottom:1px solid rgba(15,118,110,.10);
    }
    .timeline{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
      counter-reset:step;
    }
    .step{
      position:relative;
      background:#FFFFFF;
      border:1px solid var(--border);
      border-radius:24px;
      padding:24px;
      box-shadow:0 12px 34px rgba(20,40,34,.06);
      transition:.2s ease;
    }
    .step:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .step::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-grid;
      place-items:center;
      width:44px;
      height:44px;
      border-radius:16px;
      background:var(--primary-dark);
      color:white;
      font-weight:900;
      margin-bottom:18px;
    }
    .step::after{
      content:"";
      position:absolute;
      top:45px;
      right:-18px;
      width:18px;
      height:2px;
      background:rgba(15,118,110,.24);
    }
    .step:last-child::after{display:none}

    .scenario-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr 1fr;
      gap:20px;
      align-items:stretch;
    }
    .scenario-card{
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid var(--border);
      background:#FFFFFF;
      box-shadow:var(--shadow);
      transition:.2s ease;
    }
    .scenario-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
    .scenario-card.tall{grid-row:span 2}
    .scenario-cover{
      height:190px;
      background:linear-gradient(135deg,#DDEFE9,#FFF3DC);
      overflow:hidden;
    }
    .scenario-card.tall .scenario-cover{height:320px}
    .scenario-cover img{width:100%;height:100%;object-fit:cover}
    .scenario-body{padding:22px}
    .scenario-body p{font-size:15px;line-height:1.7}

    .compare-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .plan-card{
      position:relative;
      border-radius:var(--radius-lg);
      padding:26px;
      background:#FFFDF8;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:.2s ease;
    }
    .plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .plan-card.recommend{
      background:linear-gradient(180deg,#F1FAF6,#FFFDF8);
      border-color:rgba(217,119,6,.42);
    }
    .ribbon{
      position:absolute;
      top:18px;
      right:18px;
      padding:5px 10px;
      border-radius:999px;
      background:#FFF0D8;
      color:#A35A0A;
      font-size:12px;
      font-weight:900;
    }
    .plan-card ul{
      padding:0;
      margin:18px 0 22px;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .plan-card li{
      position:relative;
      padding-left:24px;
      color:var(--muted);
      font-size:15px;
    }
    .plan-card li::before{
      content:"";
      position:absolute;
      left:0;
      top:10px;
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
    }

    .faq-wrap{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:30px;
      align-items:start;
    }
    .faq-list{display:grid;gap:14px}
    details{
      background:#FFFFFF;
      border:1px solid var(--border);
      border-radius:18px;
      padding:0 20px;
      box-shadow:0 10px 26px rgba(20,40,34,.05);
      transition:.2s ease;
    }
    details[open]{border-color:rgba(15,118,110,.30);box-shadow:var(--shadow)}
    summary{
      cursor:pointer;
      list-style:none;
      padding:18px 0;
      font-weight:900;
      color:var(--text);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    summary::-webkit-details-marker{display:none}
    summary::after{
      content:"+";
      color:var(--primary);
      font-size:22px;
      line-height:1;
      font-weight:700;
    }
    details[open] summary::after{content:"−"}
    details p{padding:0 0 18px;margin:0;font-size:15px}

    .cta-block{
      border-radius:var(--radius-xl);
      padding:34px;
      background:
        linear-gradient(135deg,rgba(11,61,58,.96),rgba(15,118,110,.90)),
        url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
      color:#E9F4EF;
      overflow:hidden;
      box-shadow:0 24px 70px rgba(11,61,58,.22);
    }
    .cta-grid{
      display:grid;
      grid-template-columns:1fr 420px;
      gap:32px;
      align-items:center;
    }
    .cta-block h2,.cta-block p{color:#E9F4EF}
    .cta-block p{opacity:.88}
    .contact-form{
      display:grid;
      gap:12px;
      background:rgba(255,252,246,.96);
      border:1px solid rgba(255,255,255,.35);
      border-radius:24px;
      padding:22px;
      color:var(--text);
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .field label{
      display:block;
      margin-bottom:6px;
      color:#36534E;
      font-size:13px;
      font-weight:900;
    }
    .field input,.field select,.field textarea{
      width:100%;
      border:1px solid #DDE7E2;
      background:white;
      border-radius:15px;
      padding:12px 13px;
      color:var(--text);
      outline:0;
      transition:.2s ease;
    }
    .field textarea{min-height:92px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(15,118,110,.12);
    }

    .site-footer{
      margin-top:84px;
      background:#0B3D3A;
      color:#E9F4EF;
      padding:58px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr .8fr 1.1fr;
      gap:30px;
      align-items:start;
    }
    .footer-logo{
      font-size:22px;
      font-weight:900;
      margin-bottom:12px;
    }
    .site-footer p{color:rgba(233,244,239,.76);font-size:14px;line-height:1.8}
    .site-footer h3{color:#FFFFFF;font-size:16px;margin-bottom:14px}
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(233,244,239,.78);
      font-size:14px;
      transition:.2s ease;
    }
    .footer-links a:hover{color:#A7F3D0;text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{
      border-top:1px solid rgba(233,244,239,.14);
      margin-top:34px;
      padding-top:20px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:rgba(233,244,239,.62);
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1100px){
      .nav-main{grid-template-columns:1fr auto}
      .search-wrap{grid-column:1/-1;order:3;margin-bottom:12px}
      .brand{min-width:0}
      .hero-row,.guide-layout,.faq-wrap,.cta-grid{grid-template-columns:1fr}
      .side-panel{position:static}
      .feature-large{grid-template-columns:1fr}
      .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
      .step::after{display:none}
      .scenario-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:768px){
      .container{width:min(calc(100% - 28px),var(--container))}
      .section{padding:58px 0}
      .section-head{display:block}
      .nav-main{min-height:auto;padding:14px 0 0;gap:14px}
      .brand-mark{width:44px;height:44px}
      .brand-title{font-size:17px}
      .brand-sub{font-size:11px}
      .nav-actions{gap:8px}
      .nav-actions .btn{padding:10px 12px;font-size:13px}
      .category-panel{padding:26px}
      .entry-card{padding:18px}
      .compact-grid,.compare-grid,.scenario-grid,.form-row{grid-template-columns:1fr}
      .scenario-card.tall{grid-row:auto}
      .scenario-card.tall .scenario-cover,.scenario-cover{height:210px}
      .timeline{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
    }
    @media (max-width:520px){
      h1{font-size:33px}
      .category-hero{padding-bottom:46px}
      .category-panel{border-radius:22px;padding:22px}
      .nav-main{grid-template-columns:1fr}
      .nav-actions{width:100%;display:grid;grid-template-columns:1fr 1fr}
      .btn{width:100%;padding:12px 14px}
      .hero-tags{gap:8px}
      .tag{font-size:12px;padding:6px 10px}
      .feature-card,.side-card,.plan-card,.cta-block{padding:20px}
      .cta-block{border-radius:24px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
    }