/* roulang page: index */
:root{
      --color-primary:#17483b;
      --color-primary-2:#236457;
      --color-accent:#f59e0b;
      --color-accent-dark:#d97706;
      --color-soil:#8b6b47;
      --color-bg:#f7faf7;
      --color-panel:#ffffff;
      --color-muted:#66736f;
      --color-text:#15251f;
      --color-border:#dfe8e3;
      --radius-sm:12px;
      --radius-md:16px;
      --radius-lg:22px;
      --radius-xl:30px;
      --shadow-soft:0 18px 50px rgba(23,72,59,.10);
      --shadow-card:0 10px 28px rgba(22,49,42,.08);
      --container:1240px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }
    *{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 8% 4%, rgba(111,138,82,.14), transparent 28%),
        radial-gradient(circle at 92% 18%, rgba(245,158,11,.10), transparent 25%),
        linear-gradient(180deg,#fbfdfb 0%, var(--color-bg) 48%, #f3f7f4 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(245,158,11,.28)}
    .site-container{width:min(var(--container), calc(100% - 40px));margin-inline:auto}
    .skip-link{
      position:absolute;left:18px;top:-48px;z-index:100;
      background:var(--color-primary);color:#fff;padding:10px 14px;border-radius:12px;
      transition:top .2s var(--ease)
    }
    .skip-link:focus{top:14px;outline:3px solid rgba(245,158,11,.55)}
    .site-header{
      position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
      backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,232,227,.85);
      box-shadow:0 8px 28px rgba(23,72,59,.05)
    }
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
    .brand{display:flex;align-items:center;gap:12px;min-width:max-content}
    .brand-mark{
      width:42px;height:42px;border-radius:14px;position:relative;overflow:hidden;
      background:linear-gradient(135deg,var(--color-primary),#2f7867);
      box-shadow:0 10px 24px rgba(23,72,59,.18)
    }
    .brand-mark:before{
      content:"";position:absolute;inset:9px;border:2px solid rgba(255,255,255,.82);border-radius:7px;
      background:linear-gradient(90deg,transparent 48%,rgba(255,255,255,.72) 48% 53%,transparent 53%),
                 linear-gradient(180deg,transparent 48%,rgba(255,255,255,.72) 48% 53%,transparent 53%)
    }
    .brand-mark:after{
      content:"";position:absolute;left:8px;right:8px;bottom:7px;height:10px;
      background:linear-gradient(135deg,transparent 0 31%,rgba(245,158,11,.95) 32% 44%,transparent 45% 58%,rgba(255,255,255,.88) 59% 72%,transparent 73%);
      opacity:.95
    }
    .brand-name{font-weight:800;letter-spacing:-.02em;color:var(--color-primary);font-size:18px}
    .nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
    .nav-link{
      padding:10px 14px;border-radius:999px;color:#40514b;font-weight:650;font-size:15px;
      transition:background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease)
    }
    .nav-link:hover{background:#eef6f0;color:var(--color-primary);transform:translateY(-1px)}
    .nav-link.active{background:#e1efe7;color:var(--color-primary)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .search-box{
      width:220px;height:42px;display:flex;align-items:center;gap:8px;padding:0 13px;
      border:1px solid var(--color-border);border-radius:999px;background:#f8fbf9;color:var(--color-muted);
      transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease)
    }
    .search-box:hover{background:#fff;border-color:#c9d8d0}
    .search-box:focus-within{background:#fff;border-color:var(--color-accent);box-shadow:var(--shadow-glow)}
    .search-box input{width:100%;border:0;background:transparent;outline:0;color:var(--color-text);font-size:14px}
    .search-box svg{width:17px;height:17px;flex:0 0 auto}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:0 18px;border-radius:14px;border:1px solid transparent;
      font-weight:750;line-height:1;cursor:pointer;transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease)
    }
    .btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
      outline:3px solid rgba(245,158,11,.35);outline-offset:3px
    }
    .btn:active{transform:translateY(1px) scale(.99)}
    .btn-primary{background:var(--color-accent);color:#271805;box-shadow:0 12px 22px rgba(245,158,11,.22)}
    .btn-primary:hover{background:#f7aa25;box-shadow:0 16px 30px rgba(245,158,11,.30);transform:translateY(-1px)}
    .btn-secondary{background:#fff;color:var(--color-primary);border-color:#cfe0d7}
    .btn-secondary:hover{border-color:#a8c5b7;background:#f4faf6;transform:translateY(-1px)}
    .btn-dark{background:var(--color-primary);color:#fff}
    .btn-dark:hover{background:#0f3a2f;transform:translateY(-1px);box-shadow:0 12px 26px rgba(23,72,59,.22)}
    .mobile-toggle{display:none;width:44px;height:44px;border:1px solid var(--color-border);background:#fff;border-radius:14px;color:var(--color-primary)}
    main{overflow:hidden}
    .section{padding:84px 0}
    .section-tight{padding:58px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--color-primary);
      padding:7px 11px;background:#eaf4ee;border:1px solid #d7e9df;border-radius:999px
    }
    .section-title{font-size:clamp(28px,3.2vw,44px);line-height:1.18;font-weight:850;letter-spacing:-.04em;color:#112820;margin:10px 0 0}
    .section-desc{max-width:680px;color:var(--color-muted);font-size:16px;margin:12px 0 0}
    .hero{padding:76px 0 54px;position:relative}
    .hero:before{
      content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
      background-image:
        linear-gradient(rgba(23,72,59,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(23,72,59,.06) 1px, transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(180deg,#000 0%,transparent 75%)
    }
    .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(420px,.98fr);gap:46px;align-items:center}
    .hero-copy h1{
      font-size:clamp(40px,5.4vw,72px);line-height:1.06;letter-spacing:-.06em;font-weight:900;color:#102720;margin:18px 0 20px
    }
    .hero-copy .lead{font-size:clamp(17px,1.55vw,21px);color:#4f615b;max-width:710px;line-height:1.9;margin:0 0 26px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
    .hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
    .meta-chip{display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid #dbe7e1;background:rgba(255,255,255,.74);border-radius:14px;color:#41524c;font-weight:650;font-size:14px}
    .meta-dot{width:8px;height:8px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 0 4px rgba(245,158,11,.18)}
    .hero-visual{
      min-height:520px;border-radius:34px;padding:18px;position:relative;overflow:hidden;
      background:
        radial-gradient(circle at 75% 18%,rgba(245,158,11,.30),transparent 24%),
        linear-gradient(145deg,#133b32 0%,#1f6657 46%,#e8efe8 46.5%,#f7faf7 100%);
      box-shadow:var(--shadow-soft);border:1px solid rgba(255,255,255,.7)
    }
    .hero-visual:before{
      content:"";position:absolute;inset:18px;border:1px solid rgba(255,255,255,.24);border-radius:26px;
      background-image:radial-gradient(rgba(255,255,255,.24) 1px, transparent 1px);
      background-size:18px 18px;opacity:.65
    }
    .field-panel{
      position:absolute;left:32px;right:32px;top:34px;padding:18px;border-radius:24px;
      background:rgba(255,255,255,.90);backdrop-filter:blur(12px);box-shadow:0 18px 40px rgba(0,0,0,.12);
      border:1px solid rgba(255,255,255,.72)
    }
    .window-bar{display:flex;gap:8px;margin-bottom:14px}
    .window-bar span{width:10px;height:10px;border-radius:50%;background:#d5dfd9}
    .window-bar span:nth-child(2){background:#f7c66d}.window-bar span:nth-child(3){background:#5fb391}
    .map-card{
      height:210px;border-radius:18px;overflow:hidden;position:relative;
      background:
        linear-gradient(130deg,rgba(23,72,59,.10),transparent 35%),
        repeating-linear-gradient(25deg,#e8efe9 0 12px,#dce8e0 12px 14px,#f7faf7 14px 28px)
    }
    .map-card:before,.map-card:after{
      content:"";position:absolute;border-radius:999px;border:2px dashed rgba(23,72,59,.38);transform:rotate(-18deg)
    }
    .map-card:before{width:280px;height:96px;left:35px;top:42px}
    .map-card:after{width:170px;height:62px;right:28px;bottom:30px;border-color:rgba(245,158,11,.55)}
    .status-stack{position:absolute;left:48px;right:48px;bottom:34px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .status-card{
      padding:16px;border-radius:20px;background:rgba(17,40,32,.92);color:#fff;border:1px solid rgba(255,255,255,.14);
      box-shadow:0 20px 35px rgba(0,0,0,.20)
    }
    .status-card strong{display:block;font-size:26px;line-height:1.1;margin-bottom:5px}
    .status-card span{font-size:13px;color:rgba(255,255,255,.74)}
    .floating-badge{
      position:absolute;right:28px;top:242px;display:flex;align-items:center;gap:10px;
      padding:12px 14px;border-radius:18px;background:#fffbeb;color:#6b3b08;border:1px solid #fde7b7;
      box-shadow:0 16px 30px rgba(92,59,8,.12);font-weight:800
    }
    .directory{
      margin-top:22px;display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:16px
    }
    .dir-card{
      position:relative;min-height:150px;padding:22px;border-radius:22px;background:#fff;border:1px solid var(--color-border);
      box-shadow:var(--shadow-card);overflow:hidden;transition:transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease)
    }
    .dir-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:#bfd5c9}
    .dir-card.feature{background:linear-gradient(135deg,#173f35,#2b715f);color:#fff}
    .dir-card.feature p,.dir-card.feature .dir-link{color:rgba(255,255,255,.82)}
    .dir-card h3{font-size:22px;line-height:1.25;font-weight:850;margin:0 0 10px}
    .dir-card p{color:var(--color-muted);margin:0 0 18px}
    .dir-link{font-weight:800;color:var(--color-primary);display:inline-flex;gap:8px;align-items:center}
    .tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:16px}
    .tag{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:#eef5f0;color:#37544a;border:1px solid #dce9e2;font-size:13px;font-weight:700}
    .tag.dark{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.18);color:#fff}
    .mixed-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:20px}
    .feature-card,.content-card,.recommend-card,.proof-card,.faq-item{
      background:#fff;border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
      transition:transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease)
    }
    .feature-card:hover,.content-card:hover,.recommend-card:hover,.proof-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:#bfd5c9}
    .feature-card{padding:26px;min-height:100%;display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
    .visual-thumb{
      border-radius:20px;min-height:280px;position:relative;overflow:hidden;background:
      linear-gradient(145deg,rgba(23,72,59,.92),rgba(35,100,87,.86)),
      repeating-linear-gradient(0deg,transparent 0 18px,rgba(255,255,255,.12) 18px 19px);
    }
    .visual-thumb:before{content:"";position:absolute;inset:26px;border-radius:18px;border:2px solid rgba(255,255,255,.32)}
    .visual-thumb:after{
      content:"";position:absolute;left:34px;right:34px;bottom:40px;height:86px;border-radius:50%;
      border-top:4px solid rgba(245,158,11,.75);transform:rotate(-8deg)
    }
    .feature-card h3,.content-card h3,.recommend-card h3{font-size:24px;line-height:1.3;font-weight:850;margin:10px 0}
    .feature-card p,.content-card p,.recommend-card p,.proof-card p{color:var(--color-muted);margin:0}
    .side-stack{display:grid;gap:20px}
    .content-card{padding:24px}
    .list-strip{display:grid;gap:12px;margin-top:16px}
    .strip-item{display:flex;gap:13px;align-items:flex-start;padding:14px;border-radius:16px;background:#f7faf8;border:1px solid #e2ebe6}
    .strip-num{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:#e7f2ec;color:var(--color-primary);font-weight:900;flex:0 0 auto}
    .strip-item strong{display:block;line-height:1.35;margin-bottom:2px}
    .strip-item span{color:var(--color-muted);font-size:14px}
    .scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .scenario-card{padding:22px;border-radius:22px;background:#fff;border:1px solid var(--color-border);box-shadow:var(--shadow-card)}
    .scenario-icon{width:42px;height:42px;border-radius:15px;display:grid;place-items:center;background:#eaf4ee;color:var(--color-primary);font-weight:900;margin-bottom:16px}
    .scenario-card h3{font-size:18px;font-weight:850;margin:0 0 8px}
    .scenario-card p{font-size:14px;color:var(--color-muted);margin:0;line-height:1.75}
    .dark-band{background:#122c25;color:#fff;position:relative;overflow:hidden}
    .dark-band:before{
      content:"";position:absolute;inset:0;opacity:.18;
      background-image:linear-gradient(115deg,transparent 0 46%,rgba(245,158,11,.7) 46% 47%,transparent 47%),
                       radial-gradient(circle at 15% 25%,rgba(255,255,255,.25),transparent 20%)
    }
    .dark-band .site-container{position:relative}
    .dark-band .section-title{color:#fff}
    .dark-band .section-desc{color:rgba(255,255,255,.72)}
    .process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:34px;border:1px solid rgba(255,255,255,.14);border-radius:24px;overflow:hidden}
    .process-step{padding:24px;background:rgba(255,255,255,.05);border-right:1px solid rgba(255,255,255,.14)}
    .process-step:last-child{border-right:0}
    .process-step b{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:var(--color-accent);color:#2b1b05;margin-bottom:15px}
    .process-step h3{font-size:18px;font-weight:850;margin:0 0 8px}
    .process-step p{color:rgba(255,255,255,.72);font-size:14px;margin:0}
    .proof-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
    .proof-card{padding:24px}
    .proof-card .number{font-size:34px;font-weight:900;color:var(--color-primary);letter-spacing:-.04em}
    .recommend-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:20px;align-items:stretch}
    .recommend-card{padding:24px}
    .recommend-list{display:grid;gap:14px}
    .recommend-item{display:grid;grid-template-columns:124px 1fr;gap:16px;padding:16px;border-radius:20px;background:#fff;border:1px solid var(--color-border);box-shadow:var(--shadow-card);transition:transform .18s var(--ease), border-color .18s var(--ease)}
    .recommend-item:hover{transform:translateY(-3px);border-color:#bfd5c9}
    .mini-cover{border-radius:16px;min-height:92px;background:linear-gradient(135deg,#dfe9e2,#f9f5e8);position:relative;overflow:hidden}
    .mini-cover:after{content:"";position:absolute;inset:18px;border:2px solid rgba(23,72,59,.25);border-radius:12px}
    .recommend-item h3{font-size:18px;font-weight:850;margin:0 0 4px}
    .recommend-item p{font-size:14px;color:var(--color-muted);margin:0}
    .faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:30px;align-items:start}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-question{
      width:100%;display:flex;justify-content:space-between;gap:18px;align-items:center;
      padding:19px 21px;background:#fff;border:0;text-align:left;color:var(--color-text);font-weight:850;cursor:pointer
    }
    .faq-question span:last-child{width:28px;height:28px;border-radius:10px;background:#edf5f0;display:grid;place-items:center;color:var(--color-primary);flex:0 0 auto}
    .faq-answer{padding:0 21px 20px;color:var(--color-muted);border-top:1px solid #edf3ef}
    .faq-item:not(.open) .faq-answer{display:none}
    .faq-item.open{border-color:#bfd5c9}
    .faq-item.open .faq-question span:last-child{background:var(--color-accent);color:#2b1b05}
    .cta-panel{
      border-radius:32px;padding:34px;display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;
      background:
        radial-gradient(circle at 85% 30%, rgba(245,158,11,.24), transparent 30%),
        linear-gradient(135deg,#fff,#edf6f0);
      border:1px solid #dce9e2;box-shadow:var(--shadow-soft)
    }
    .cta-panel h2{font-size:clamp(28px,3vw,42px);line-height:1.2;font-weight:900;letter-spacing:-.04em;margin:0 0 12px}
    .cta-panel p{color:var(--color-muted);margin:0}
    .cta-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}
    .site-footer{background:#e8f0eb;border-top:1px solid #d7e4dc;padding:54px 0 28px;color:#334840}
    .footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1fr;gap:30px}
    .footer-logo{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:900;color:var(--color-primary);margin-bottom:12px}
    .footer-text{color:#5e6f69;margin:0;max-width:390px}
    .footer-col h3{font-size:15px;font-weight:900;color:#20382f;margin:0 0 14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#52635d;font-weight:650;transition:color .18s var(--ease), transform .18s var(--ease)}
    .footer-links a:hover{color:var(--color-primary);transform:translateX(2px)}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid #d3e1d9;color:#61726c;font-size:14px}
    @media (max-width: 1024px){
      .nav-wrap{height:auto;min-height:72px;flex-wrap:wrap;padding:12px 0}
      .nav-links{order:3;width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:4px}
      .search-box{width:190px}
      .hero-grid,.mixed-grid,.recommend-layout,.faq-wrap,.cta-panel{grid-template-columns:1fr}
      .hero-visual{min-height:460px}
      .directory{grid-template-columns:1fr 1fr}
      .scenario-grid,.process,.proof-grid{grid-template-columns:1fr 1fr}
      .process-step:nth-child(2){border-right:0}
      .process-step{border-bottom:1px solid rgba(255,255,255,.14)}
      .process-step:nth-child(n+3){border-bottom:0}
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 768px){
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-actions{display:none}
      .mobile-toggle{display:grid;place-items:center}
      .nav-links{display:none}
      .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
      .nav-link{width:100%}
      .hero{padding:48px 0 34px}
      .section{padding:62px 0}
      .section-head{display:block}
      .directory,.scenario-grid,.process,.proof-grid,.footer-grid{grid-template-columns:1fr}
      .feature-card{grid-template-columns:1fr}
      .status-stack{left:28px;right:28px;grid-template-columns:1fr}
      .floating-badge{top:auto;bottom:184px;right:22px}
      .process-step,.process-step:nth-child(2),.process-step:nth-child(n+3){border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}
      .process-step:last-child{border-bottom:0}
      .recommend-item{grid-template-columns:1fr}
      .mini-cover{min-height:130px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }
    @media (max-width: 520px){
      .brand-name{font-size:16px}
      .hero-copy h1{font-size:38px}
      .hero-actions .btn{width:100%}
      .hero-visual{min-height:430px;border-radius:26px}
      .field-panel{left:18px;right:18px;top:20px}
      .map-card{height:180px}
      .status-card strong{font-size:22px}
      .section-title{font-size:29px}
      .cta-panel{padding:24px;border-radius:24px}
      .cta-actions .btn{width:100%}
    }

/* roulang page: category1 */
:root{
      --color-bg:#f7f8f3;
      --color-surface:#ffffff;
      --color-soft:#eef3ec;
      --color-line:#dfe7dd;
      --color-text:#18231f;
      --color-muted:#66736d;
      --color-primary:#173d34;
      --color-primary-2:#1f6b5b;
      --color-accent:#f08a24;
      --color-accent-soft:#fff2e4;
      --color-brown:#6e5b3f;
      --shadow-sm:0 8px 24px rgba(23,61,52,.08);
      --shadow-md:0 18px 48px rgba(23,61,52,.12);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:26px;
      --radius-xl:34px;
      --container:1240px;
      --nav-height:76px;
      --transition:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 10% 8%, rgba(31,107,91,.10), transparent 28%),
        radial-gradient(circle at 92% 18%, rgba(240,138,36,.10), transparent 26%),
        linear-gradient(180deg,#fbfcf8 0%,var(--color-bg) 48%,#f2f5ee 100%);
      line-height:1.75;
      min-height:100vh;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(240,138,36,.22);color:var(--color-primary)}
    :focus-visible{
      outline:3px solid rgba(240,138,36,.45);
      outline-offset:3px;
      border-radius:12px;
    }

    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(223,231,221,.92);
      box-shadow:0 8px 22px rgba(23,61,52,.04);
    }
    .nav-wrap{
      min-height:var(--nav-height);
      display:flex;
      align-items:center;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:800;
      color:var(--color-primary);
      letter-spacing:-.02em;
    }
    .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      display:inline-block;
      position:relative;
      overflow:hidden;
      background:
        linear-gradient(135deg, rgba(31,107,91,.98), rgba(23,61,52,.98));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.22), 0 12px 24px rgba(23,61,52,.18);
      flex:0 0 auto;
    }
    .brand-mark:before{
      content:"";
      position:absolute;
      left:8px;right:8px;top:9px;bottom:9px;
      border:2px solid rgba(255,255,255,.86);
      border-radius:4px;
      box-shadow:inset 0 -9px 0 rgba(240,138,36,.28);
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:7px;
      right:7px;
      bottom:8px;
      height:11px;
      background:
        linear-gradient(135deg, transparent 48%, rgba(255,255,255,.9) 50%, transparent 53%),
        linear-gradient(45deg, transparent 43%, rgba(255,255,255,.78) 45%, transparent 48%);
      opacity:.9;
    }
    .brand-text{font-size:17px;white-space:nowrap}
    .nav-links{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:6px;
      flex:1;
    }
    .nav-link{
      position:relative;
      padding:10px 14px;
      border-radius:999px;
      font-size:14px;
      font-weight:650;
      color:#42504a;
      transition:color var(--transition), background var(--transition), transform var(--transition);
      white-space:nowrap;
    }
    .nav-link:hover{
      color:var(--color-primary);
      background:rgba(31,107,91,.08);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--color-primary);
      background:var(--color-soft);
      box-shadow:inset 0 0 0 1px rgba(31,107,91,.12);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:320px;
      justify-content:flex-end;
    }
    .search-box{
      height:42px;
      width:190px;
      display:flex;
      align-items:center;
      gap:8px;
      padding:0 13px;
      border:1px solid var(--color-line);
      border-radius:999px;
      background:#fafcf8;
      color:var(--color-muted);
      transition:border-color var(--transition), box-shadow var(--transition), background var(--transition);
    }
    .search-box:hover,.search-box:focus-within{
      border-color:rgba(31,107,91,.38);
      background:#fff;
      box-shadow:0 0 0 4px rgba(31,107,91,.08);
    }
    .search-box svg{width:16px;height:16px;flex:0 0 auto}
    .search-box input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      font-size:13px;
      color:var(--color-text);
    }
    .search-box input::placeholder{color:#8a958f}
    .btn{
      min-height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      padding:11px 18px;
      border-radius:14px;
      border:1px solid transparent;
      font-weight:750;
      font-size:14px;
      line-height:1;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
      user-select:none;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.98)}
    .btn-primary{
      background:var(--color-accent);
      color:#2a1a08;
      box-shadow:0 13px 28px rgba(240,138,36,.25);
    }
    .btn-primary:hover{background:#ff982f;box-shadow:0 16px 34px rgba(240,138,36,.32)}
    .btn-secondary{
      background:#fff;
      color:var(--color-primary);
      border-color:var(--color-line);
      box-shadow:var(--shadow-sm);
    }
    .btn-secondary:hover{border-color:rgba(31,107,91,.32);box-shadow:var(--shadow-md)}
    .btn-dark{
      background:var(--color-primary);
      color:#fff;
      box-shadow:0 14px 32px rgba(23,61,52,.24);
    }
    .btn-dark:hover{background:#205548}
    .mobile-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--color-line);
      border-radius:14px;
      background:#fff;
      align-items:center;
      justify-content:center;
      color:var(--color-primary);
    }
    .mobile-toggle span,.mobile-toggle span:before,.mobile-toggle span:after{
      display:block;
      width:18px;
      height:2px;
      background:currentColor;
      border-radius:99px;
      position:relative;
      transition:var(--transition);
    }
    .mobile-toggle span:before,.mobile-toggle span:after{content:"";position:absolute;left:0}
    .mobile-toggle span:before{top:-6px}
    .mobile-toggle span:after{top:6px}

    .hero{
      padding:42px 0 34px;
      position:relative;
      overflow:hidden;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      color:var(--color-muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb a{font-weight:650}
    .breadcrumb a:hover{color:var(--color-primary)}
    .hero-panel{
      border:1px solid rgba(223,231,221,.88);
      border-radius:var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(255,255,255,.94), rgba(244,247,242,.92)),
        repeating-linear-gradient(90deg, rgba(23,61,52,.06) 0 1px, transparent 1px 42px),
        repeating-linear-gradient(0deg, rgba(23,61,52,.04) 0 1px, transparent 1px 42px);
      box-shadow:var(--shadow-md);
      overflow:hidden;
      position:relative;
    }
    .hero-panel:after{
      content:"";
      position:absolute;
      width:420px;height:420px;
      right:-150px;top:-160px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(240,138,36,.20), transparent 68%);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(360px,.72fr);
      gap:30px;
      align-items:stretch;
      padding:34px;
      position:relative;
      z-index:1;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(31,107,91,.10);
      color:var(--color-primary);
      font-size:13px;
      font-weight:800;
      margin-bottom:16px;
    }
    .eyebrow:before{
      content:"";
      width:8px;height:8px;border-radius:999px;background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(240,138,36,.16);
    }
    h1{
      margin:0;
      font-size:clamp(32px, 5vw, 56px);
      line-height:1.12;
      letter-spacing:-.045em;
      color:var(--color-primary);
      font-weight:850;
      max-width:860px;
    }
    .hero-copy{
      margin:18px 0 0;
      max-width:760px;
      color:#506059;
      font-size:17px;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:26px;
    }
    .hero-stats{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:28px;
    }
    .stat-card{
      border:1px solid rgba(223,231,221,.9);
      background:rgba(255,255,255,.72);
      border-radius:18px;
      padding:16px;
    }
    .stat-card strong{
      display:block;
      color:var(--color-primary);
      font-size:24px;
      line-height:1.15;
    }
    .stat-card span{
      display:block;
      color:var(--color-muted);
      font-size:13px;
      margin-top:4px;
    }
    .visual-card{
      border-radius:28px;
      background:
        linear-gradient(145deg, #183f36, #0e2923 70%),
        radial-gradient(circle at 20% 20%, rgba(240,138,36,.32), transparent 35%);
      color:#fff;
      min-height:420px;
      padding:24px;
      position:relative;
      overflow:hidden;
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.10);
    }
    .visual-card:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:22px;
      background:
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:34px 34px;
      pointer-events:none;
    }
    .device-illustration{
      position:absolute;
      left:34px;right:34px;bottom:34px;
      height:210px;
      border-radius:24px;
      background:linear-gradient(180deg,#d8e0d8,#9da99f);
      box-shadow:0 26px 60px rgba(0,0,0,.34);
      border:8px solid #202925;
      overflow:hidden;
    }
    .device-illustration:before{
      content:"";
      position:absolute;
      inset:18px;
      border-radius:14px;
      background:
        linear-gradient(135deg, rgba(31,107,91,.92), rgba(240,138,36,.16)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.18) 0 1px, transparent 1px 36px),
        repeating-linear-gradient(0deg, rgba(255,255,255,.14) 0 1px, transparent 1px 36px);
    }
    .device-illustration:after{
      content:"野外 Windows 终端";
      position:absolute;
      left:32px;
      top:32px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.86);
      color:var(--color-primary);
      font-size:13px;
      font-weight:800;
    }
    .signal-list{
      position:relative;
      z-index:1;
      display:grid;
      gap:12px;
      max-width:270px;
      margin-left:auto;
    }
    .signal-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.10);
      border:1px solid rgba(255,255,255,.14);
      backdrop-filter:blur(10px);
      font-size:13px;
    }
    .signal-item b{font-size:15px}
    .signal-item em{
      font-style:normal;
      color:#ffd3a3;
      font-weight:800;
    }

    main{padding-bottom:0}
    section{scroll-margin-top:96px}
    .section{
      padding:54px 0;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:24px;
    }
    .section-kicker{
      color:var(--color-primary-2);
      font-size:13px;
      font-weight:850;
      letter-spacing:.08em;
      margin-bottom:6px;
    }
    .section-title{
      margin:0;
      color:var(--color-primary);
      font-size:clamp(24px,3vw,36px);
      line-height:1.22;
      letter-spacing:-.03em;
      font-weight:850;
    }
    .section-desc{
      margin:8px 0 0;
      color:var(--color-muted);
      max-width:720px;
      line-height:1.9;
    }
    .filter-panel{
      border:1px solid var(--color-line);
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.82);
      box-shadow:var(--shadow-sm);
      padding:22px;
    }
    .filter-grid{
      display:grid;
      grid-template-columns:1.1fr 1fr 1fr auto;
      gap:14px;
      align-items:end;
    }
    .field label{
      display:block;
      color:var(--color-primary);
      font-weight:780;
      font-size:13px;
      margin-bottom:7px;
    }
    .select,input[type="text"]{
      width:100%;
      height:46px;
      border:1px solid var(--color-line);
      border-radius:14px;
      background:#fff;
      color:var(--color-text);
      padding:0 14px;
      transition:border-color var(--transition), box-shadow var(--transition);
    }
    .select:hover,input[type="text"]:hover{border-color:rgba(31,107,91,.34)}
    .select:focus,input[type="text"]:focus{
      outline:0;
      border-color:var(--color-primary-2);
      box-shadow:0 0 0 4px rgba(31,107,91,.10);
    }
    .chips{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border:1px solid var(--color-line);
      background:#fff;
      color:#4c5a54;
      padding:8px 12px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      transition:background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
    }
    .chip:hover,.chip.active{
      background:rgba(31,107,91,.10);
      border-color:rgba(31,107,91,.30);
      color:var(--color-primary);
      transform:translateY(-1px);
    }
    .layout-two{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:22px;
      align-items:start;
    }
    .catalog-list{
      display:grid;
      gap:14px;
    }
    .catalog-card{
      display:grid;
      grid-template-columns:96px minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
      padding:18px;
      border:1px solid var(--color-line);
      border-radius:22px;
      background:rgba(255,255,255,.86);
      box-shadow:0 8px 24px rgba(23,61,52,.05);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .catalog-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(31,107,91,.28);
    }
    .card-icon{
      height:78px;
      border-radius:18px;
      background:
        linear-gradient(135deg, rgba(31,107,91,.14), rgba(240,138,36,.12)),
        repeating-linear-gradient(45deg, rgba(23,61,52,.12) 0 1px, transparent 1px 10px);
      display:flex;
      align-items:center;
      justify-content:center;
      color:var(--color-primary);
      font-weight:900;
      font-size:24px;
      border:1px solid rgba(31,107,91,.10);
    }
    .catalog-card h3{
      margin:0 0 6px;
      color:var(--color-primary);
      font-size:20px;
      line-height:1.35;
      font-weight:850;
    }
    .catalog-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.8;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:5px 9px;
      border-radius:999px;
      background:var(--color-soft);
      color:var(--color-primary);
      font-size:12px;
      font-weight:800;
      line-height:1;
    }
    .card-score{
      text-align:right;
      color:var(--color-muted);
      font-size:12px;
      white-space:nowrap;
    }
    .card-score strong{
      display:block;
      color:var(--color-accent);
      font-size:26px;
      line-height:1.1;
    }
    .side-panel{
      position:sticky;
      top:96px;
      border:1px solid var(--color-line);
      border-radius:24px;
      background:#fff;
      padding:20px;
      box-shadow:var(--shadow-sm);
    }
    .side-panel h3{
      margin:0 0 12px;
      color:var(--color-primary);
      font-size:18px;
      font-weight:850;
    }
    .check-list{
      display:grid;
      gap:11px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:10px;
      color:#4b5b54;
      font-size:14px;
      line-height:1.65;
    }
    .check-list li:before{
      content:"";
      width:18px;height:18px;
      margin-top:3px;
      border-radius:6px;
      flex:0 0 auto;
      background:var(--color-accent-soft);
      border:1px solid rgba(240,138,36,.32);
      box-shadow:inset 0 0 0 4px #fff;
    }
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:16px;
    }
    .scenario-card{
      border:1px solid var(--color-line);
      border-radius:22px;
      background:#fff;
      padding:20px;
      min-height:212px;
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .scenario-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(31,107,91,.26);
    }
    .scenario-card .num{
      display:inline-flex;
      width:36px;height:36px;
      align-items:center;
      justify-content:center;
      border-radius:13px;
      background:var(--color-primary);
      color:#fff;
      font-weight:900;
      margin-bottom:14px;
    }
    .scenario-card h3{
      margin:0 0 8px;
      color:var(--color-primary);
      font-weight:850;
      font-size:18px;
    }
    .scenario-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.85;
    }
    .compare-panel{
      border-radius:var(--radius-lg);
      border:1px solid rgba(223,231,221,.9);
      background:
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(238,243,236,.78));
      overflow:hidden;
      box-shadow:var(--shadow-sm);
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.1fr 1fr 1fr 1fr;
      border-bottom:1px solid var(--color-line);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-row > div{
      padding:16px 18px;
      border-right:1px solid var(--color-line);
      min-height:62px;
      display:flex;
      align-items:center;
      color:#4d5b55;
      font-size:14px;
    }
    .compare-row > div:last-child{border-right:0}
    .compare-row.head > div{
      background:var(--color-primary);
      color:#fff;
      font-weight:850;
      font-size:14px;
    }
    .compare-row .name{
      color:var(--color-primary);
      font-weight:850;
    }
    .process{
      display:grid;
      grid-template-columns:repeat(5,minmax(0,1fr));
      gap:14px;
      counter-reset:step;
    }
    .process-card{
      position:relative;
      border:1px solid var(--color-line);
      border-radius:22px;
      padding:20px;
      background:#fff;
      min-height:210px;
      overflow:hidden;
    }
    .process-card:before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;height:42px;
      border-radius:15px;
      background:rgba(240,138,36,.14);
      color:var(--color-accent);
      font-weight:900;
      margin-bottom:16px;
    }
    .process-card h3{
      margin:0 0 8px;
      color:var(--color-primary);
      font-size:17px;
      font-weight:850;
    }
    .process-card p{
      margin:0;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.8;
    }
    .recommend-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:18px;
    }
    .recommend-card{
      border:1px solid var(--color-line);
      border-radius:24px;
      background:#fff;
      padding:22px;
      box-shadow:var(--shadow-sm);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .recommend-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(31,107,91,.28);
    }
    .recommend-card h3{
      margin:0 0 8px;
      color:var(--color-primary);
      font-size:21px;
      font-weight:850;
    }
    .recommend-card p{margin:0;color:var(--color-muted);line-height:1.85}
    .faq-wrap{
      display:grid;
      gap:12px;
    }
    details.faq-item{
      border:1px solid var(--color-line);
      border-radius:20px;
      background:#fff;
      box-shadow:0 8px 22px rgba(23,61,52,.04);
      overflow:hidden;
    }
    details.faq-item[open]{border-color:rgba(31,107,91,.28);box-shadow:var(--shadow-sm)}
    .faq-item summary{
      list-style:none;
      padding:18px 20px;
      display:flex;
      justify-content:space-between;
      gap:18px;
      align-items:center;
      color:var(--color-primary);
      font-weight:850;
      cursor:pointer;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:28px;height:28px;
      border-radius:10px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--color-soft);
      color:var(--color-primary);
      flex:0 0 auto;
      font-weight:900;
    }
    .faq-item[open] summary:after{content:"−";background:var(--color-primary);color:#fff}
    .faq-item p{
      margin:0;
      padding:0 20px 20px;
      color:var(--color-muted);
      line-height:1.9;
    }
    .cta-panel{
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 84% 20%, rgba(240,138,36,.24), transparent 32%),
        linear-gradient(135deg, #173d34, #102a24);
      color:#fff;
      padding:34px;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      gap:24px;
      align-items:center;
      box-shadow:0 24px 60px rgba(23,61,52,.20);
      position:relative;
      overflow:hidden;
    }
    .cta-panel:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size:46px 46px;
      pointer-events:none;
    }
    .cta-panel > *{position:relative;z-index:1}
    .cta-panel h2{
      margin:0 0 8px;
      font-size:clamp(24px,3vw,36px);
      line-height:1.25;
      font-weight:900;
      letter-spacing:-.03em;
    }
    .cta-panel p{margin:0;color:rgba(255,255,255,.78);max-width:760px;line-height:1.9}
    .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
    .cta-actions .btn-secondary{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.20);box-shadow:none}
    .cta-actions .btn-secondary:hover{background:rgba(255,255,255,.16)}

    .site-footer{
      margin-top:64px;
      padding:46px 0 24px;
      background:#e8eee5;
      border-top:1px solid rgba(31,107,91,.12);
      color:#34443e;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .75fr .75fr .85fr;
      gap:28px;
    }
    .footer-logo{
      display:flex;
      align-items:center;
      gap:12px;
      color:var(--color-primary);
      font-weight:850;
      font-size:17px;
      margin-bottom:12px;
    }
    .footer-text{
      margin:0;
      max-width:360px;
      color:#5a6962;
      font-size:14px;
      line-height:1.9;
    }
    .footer-col h3{
      margin:0 0 12px;
      color:var(--color-primary);
      font-size:15px;
      font-weight:850;
    }
    .footer-links{
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#596860;
      font-size:14px;
      transition:color var(--transition), transform var(--transition);
    }
    .footer-links a:hover{
      color:var(--color-primary);
      transform:translateX(2px);
    }
    .footer-bottom{
      margin-top:32px;
      padding-top:20px;
      border-top:1px solid rgba(31,107,91,.12);
      display:flex;
      justify-content:space-between;
      gap:18px;
      color:#6b7772;
      font-size:13px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .nav-wrap{gap:14px}
      .nav-actions{min-width:auto}
      .search-box{display:none}
      .hero-grid{grid-template-columns:1fr;padding:26px}
      .visual-card{min-height:340px}
      .layout-two{grid-template-columns:1fr}
      .side-panel{position:static}
      .scenario-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .process{grid-template-columns:repeat(3,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
      .filter-grid{grid-template-columns:1fr 1fr}
      .filter-grid .btn{width:100%}
    }
    @media (max-width:768px){
      :root{--nav-height:auto}
      .site-container{width:min(100% - 28px,var(--container))}
      .nav-wrap{min-height:68px;flex-wrap:wrap;padding:12px 0}
      .mobile-toggle{display:flex;margin-left:auto}
      .nav-links{
        order:5;
        flex:0 0 100%;
        justify-content:flex-start;
        overflow-x:auto;
        padding:4px 0 2px;
        scrollbar-width:none;
      }
      .nav-links::-webkit-scrollbar{display:none}
      .nav-actions{margin-left:auto}
      .nav-actions .btn{display:none}
      .brand-text{font-size:16px}
      .hero{padding-top:26px}
      .hero-grid{padding:20px}
      .hero-stats{grid-template-columns:1fr}
      .catalog-card{grid-template-columns:72px minmax(0,1fr);align-items:start}
      .card-score{grid-column:1 / -1;text-align:left;display:flex;align-items:center;gap:10px}
      .card-score strong{font-size:22px}
      .compare-panel{overflow-x:auto}
      .compare-row{min-width:720px}
      .process{grid-template-columns:1fr 1fr}
      .recommend-grid{grid-template-columns:1fr}
      .cta-panel{grid-template-columns:1fr;padding:24px}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:520px){
      body{line-height:1.7}
      .brand-mark{width:34px;height:34px;border-radius:12px}
      .brand-text{max-width:190px;overflow:hidden;text-overflow:ellipsis}
      .nav-link{padding:9px 12px;font-size:13px}
      .hero-panel{border-radius:24px}
      .hero-grid{gap:18px}
      .hero-copy{font-size:15px}
      .visual-card{min-height:280px;padding:18px}
      .signal-list{max-width:none}
      .device-illustration{left:20px;right:20px;bottom:20px;height:145px;border-width:6px}
      .filter-grid{grid-template-columns:1fr}
      .chips{gap:8px}
      .section{padding:38px 0}
      .section-head{display:block}
      .scenario-grid{grid-template-columns:1fr}
      .process{grid-template-columns:1fr}
      .catalog-card{grid-template-columns:1fr}
      .card-icon{height:64px;width:84px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid}
    }

/* roulang page: category2 */
:root{
      --bg: #f4f7f4;
      --bg-soft: #fbfcfb;
      --panel: rgba(255,255,255,.92);
      --panel-strong: #ffffff;
      --line: #d7e1d9;
      --line-strong: #bfd0c4;
      --text: #183225;
      --muted: #5d7064;
      --brand: #265943;
      --brand-2: #3c7457;
      --brand-soft: #eaf3ec;
      --accent: #d8892b;
      --accent-soft: #fff2e0;
      --shadow-sm: 0 10px 24px rgba(23, 50, 37, .06);
      --shadow-md: 0 18px 42px rgba(23, 50, 37, .09);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --container: 1280px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(38,89,67,.08), transparent 28%),
        radial-gradient(circle at 90% 20%, rgba(216,137,43,.08), transparent 20%),
        linear-gradient(180deg, #fbfcfb 0%, #f4f7f4 100%);
      font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      line-height:1.75;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(38,89,67,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(38,89,67,.03) 1px, transparent 1px);
      background-size: 84px 84px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.18), transparent 32%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(38,89,67,.18)}
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter: blur(16px);
      border-bottom:1px solid rgba(215,225,217,.88);
      box-shadow: 0 1px 0 rgba(255,255,255,.35);
    }
    .logo-wrap{
      display:flex;
      align-items:center;
      gap:.72rem;
      min-width:max-content;
    }
    .brand-mark{
      width:18px;
      height:18px;
      border-radius:6px;
      background:
        linear-gradient(135deg, #265943 0%, #3d7658 55%, #d8892b 100%);
      box-shadow: 0 10px 20px rgba(38,89,67,.2);
      position:relative;
      overflow:hidden;
      flex:none;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:4px;
      border:1px solid rgba(255,255,255,.72);
      border-radius:4px;
      opacity:.9;
    }
    .brand-text{
      font-weight:800;
      letter-spacing:.02em;
      color:var(--text);
      font-size:1.02rem;
      white-space:nowrap;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:.35rem;
      flex-wrap:wrap;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.68rem 1rem;
      border-radius:999px;
      color:var(--muted);
      transition: transform .18s ease, background-color .18s ease, color .18s ease, box-shadow .18s ease, border-color .18s ease;
      border:1px solid transparent;
      line-height:1;
      white-space:nowrap;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--brand);
      background:rgba(38,89,67,.08);
      border-color:rgba(38,89,67,.08);
      box-shadow:0 6px 14px rgba(38,89,67,.06);
      transform: translateY(-1px);
      outline:none;
    }
    .nav-link.active{
      color:var(--brand);
      background:linear-gradient(180deg, #f3f8f4, #eaf3ec);
      border-color:rgba(38,89,67,.12);
      box-shadow: inset 0 0 0 1px rgba(38,89,67,.05);
      font-weight:700;
    }
    .search-shell{
      display:flex;
      align-items:center;
      gap:.6rem;
      min-width:280px;
      height:46px;
      padding:0 .95rem;
      border:1px solid var(--line);
      border-radius:999px;
      background:#f9fbf9;
      box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
      transition:border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
    }
    .search-shell:focus-within{
      border-color:rgba(38,89,67,.32);
      background:#fff;
      box-shadow: 0 0 0 4px rgba(38,89,67,.08);
    }
    .search-shell input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
      padding:0;
      min-width:0;
    }
    .search-shell input::placeholder{
      color:#7a8a7f;
    }
    .icon-sm{
      width:18px;
      height:18px;
      color:var(--muted);
      flex:none;
    }
    .btn-primary,
    .btn-secondary,
    .btn-ghost{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      border-radius:14px;
      padding:.88rem 1.15rem;
      font-weight:700;
      line-height:1;
      border:1px solid transparent;
      transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease, opacity .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      box-shadow: 0 14px 28px rgba(38,89,67,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform: translateY(-1px);
      box-shadow: 0 18px 34px rgba(38,89,67,.2);
      outline:none;
    }
    .btn-primary:active{transform: translateY(0) scale(.99)}
    .btn-secondary{
      color:var(--brand);
      background:#fff;
      border-color:var(--line);
      box-shadow: var(--shadow-sm);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      transform: translateY(-1px);
      border-color:rgba(38,89,67,.18);
      box-shadow: var(--shadow-md);
      outline:none;
    }
    .btn-ghost{
      color:var(--muted);
      background:transparent;
      border-color:rgba(215,225,217,.65);
    }
    .btn-ghost:hover,
    .btn-ghost:focus-visible{
      background:#fff;
      color:var(--brand);
      box-shadow: var(--shadow-sm);
      outline:none;
    }
    .section{
      padding:4.2rem 0;
    }
    .section-tight{
      padding:2.4rem 0;
    }
    .card{
      background:var(--panel);
      border:1px solid rgba(215,225,217,.9);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-sm);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow:var(--shadow-md);
      border-color:rgba(191,208,196,.95);
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.4rem .7rem;
      border-radius:999px;
      font-size:.88rem;
      line-height:1;
      border:1px solid transparent;
      transition: all .18s ease;
    }
    .chip-soft{
      background:var(--brand-soft);
      color:var(--brand);
      border-color:rgba(38,89,67,.08);
    }
    .chip-warm{
      background:var(--accent-soft);
      color:#9a5c11;
      border-color:rgba(216,137,43,.12);
    }
    .chip-muted{
      background:#f4f7f4;
      color:var(--muted);
      border-color:var(--line);
    }
    .chip-active{
      background:linear-gradient(135deg, #ebf5ee 0%, #f6fbf7 100%);
      border-color:rgba(38,89,67,.14);
      color:var(--brand);
      box-shadow: inset 0 0 0 1px rgba(38,89,67,.04);
    }
    .section-title{
      font-size:clamp(1.45rem, 1rem + 1.2vw, 2.25rem);
      line-height:1.2;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .section-desc{
      color:var(--muted);
      max-width:72ch;
    }
    .hero-card{
      position:relative;
      overflow:hidden;
      background:
        radial-gradient(circle at 10% 10%, rgba(38,89,67,.12), transparent 30%),
        radial-gradient(circle at 95% 15%, rgba(216,137,43,.14), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fbf8 100%);
      border:1px solid rgba(215,225,217,.95);
      border-radius:28px;
      box-shadow: 0 24px 52px rgba(21,41,29,.08);
    }
    .hero-card::after{
      content:"";
      position:absolute;
      inset:auto -15% -30% auto;
      width:360px;
      height:360px;
      border-radius:50%;
      background: radial-gradient(circle, rgba(38,89,67,.13), transparent 70%);
      pointer-events:none;
    }
    .stat-pill{
      display:flex;
      flex-direction:column;
      gap:.2rem;
      padding:.9rem 1rem;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }
    .stat-pill strong{
      font-size:1.08rem;
      color:var(--brand);
    }
    .stat-pill span{
      color:var(--muted);
      font-size:.88rem;
      line-height:1.35;
    }
    .soft-panel{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(215,225,217,.95);
      border-radius:24px;
      box-shadow:var(--shadow-sm);
    }
    .feature-list li{
      position:relative;
      padding-left:1.3rem;
      color:var(--muted);
    }
    .feature-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.82rem;
      width:.5rem;
      height:.5rem;
      border-radius:999px;
      background:linear-gradient(135deg, var(--brand), var(--accent));
      box-shadow:0 0 0 4px rgba(38,89,67,.07);
    }
    .info-bar{
      border-top:1px solid rgba(215,225,217,.85);
      background:linear-gradient(180deg, rgba(251,252,251,.5), rgba(244,247,244,.95));
    }
    .timeline{
      position:relative;
    }
    .timeline::before{
      content:"";
      position:absolute;
      left:18px;
      top:8px;
      bottom:8px;
      width:2px;
      background:linear-gradient(180deg, rgba(38,89,67,.22), rgba(216,137,43,.22));
    }
    .timeline-item{
      position:relative;
      padding-left:3.2rem;
    }
    .timeline-dot{
      position:absolute;
      left:8px;
      top:.45rem;
      width:22px;
      height:22px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
      border:4px solid #f4f7f4;
      box-shadow:0 0 0 1px rgba(38,89,67,.1);
    }
    .faq-item{
      border:1px solid rgba(215,225,217,.95);
      border-radius:18px;
      background:#fff;
      overflow:hidden;
      box-shadow:var(--shadow-sm);
      transition:box-shadow .2s ease, transform .2s ease, border-color .2s ease;
    }
    .faq-item[open]{
      box-shadow:var(--shadow-md);
      border-color:rgba(191,208,196,.98);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      padding:1.05rem 1.15rem;
      font-weight:700;
      color:var(--text);
      outline:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary .faq-mark{
      display:inline-flex;
      width:32px;
      height:32px;
      align-items:center;
      justify-content:center;
      border-radius:999px;
      background:#f3f7f3;
      border:1px solid var(--line);
      color:var(--brand);
      flex:none;
      transition:transform .18s ease, background-color .18s ease;
    }
    .faq-item[open] summary .faq-mark{
      background:var(--brand-soft);
      transform:rotate(45deg);
    }
    .faq-answer{
      padding:0 1.15rem 1rem 1.15rem;
      color:var(--muted);
    }
    .footer-links a{
      color:#dde8df;
      transition:color .18s ease, opacity .18s ease, transform .18s ease;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#fff;
      outline:none;
    }
    .site-footer{
      background:linear-gradient(180deg, #214233 0%, #1a3327 100%);
      color:#e8f0ea;
      padding:3rem 0 1.2rem;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.35fr .8fr .8fr .95fr;
      gap:1.4rem;
    }
    .footer-col h3{
      font-size:1rem;
      font-weight:800;
      margin-bottom:1rem;
      color:#fff;
    }
    .footer-logo{
      display:flex;
      align-items:center;
      gap:.72rem;
      font-weight:800;
      font-size:1.05rem;
      color:#fff;
      margin-bottom:.9rem;
    }
    .footer-text{
      color:#c9d6ce;
      max-width:38ch;
    }
    .footer-links{
      display:flex;
      flex-direction:column;
      gap:.7rem;
      color:#dbe6df;
    }
    .footer-bottom{
      margin-top:2rem;
      padding-top:1rem;
      border-top:1px solid rgba(255,255,255,.09);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      color:#bed0c6;
      font-size:.94rem;
      flex-wrap:wrap;
    }
    .mobile-menu{
      display:none;
      border-top:1px solid rgba(215,225,217,.9);
      background:rgba(255,255,255,.96);
      box-shadow:0 10px 26px rgba(23,50,37,.08);
    }
    .mobile-menu.open{
      display:block;
    }
    .mobile-menu-inner{
      padding:1rem 0 1.15rem;
      display:grid;
      gap:.85rem;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr);
      gap:1.4rem;
      align-items:stretch;
    }
    .main-grid{
      display:grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
      gap:1.2rem;
    }
    .stack-grid{
      display:grid;
      gap:1rem;
    }
    .mini-card{
      background:rgba(255,255,255,.92);
      border:1px solid var(--line);
      border-radius:20px;
      box-shadow:var(--shadow-sm);
      padding:1rem 1.05rem;
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .mini-card:hover{transform:translateY(-2px); box-shadow:var(--shadow-md)}
    .related-card{
      display:flex;
      flex-direction:column;
      gap:.9rem;
      padding:1.15rem;
    }
    .accent-line{
      position:relative;
      padding-left:1rem;
    }
    .accent-line::before{
      content:"";
      position:absolute;
      left:0;
      top:.3rem;
      bottom:.3rem;
      width:4px;
      border-radius:999px;
      background:linear-gradient(180deg, var(--brand), var(--accent));
    }
    .form-control{
      width:100%;
      border:1px solid var(--line);
      background:#fff;
      border-radius:14px;
      padding:.92rem 1rem;
      color:var(--text);
      outline:none;
      transition:border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
    }
    .form-control::placeholder{color:#8a988f}
    .form-control:focus{
      border-color:rgba(38,89,67,.34);
      box-shadow:0 0 0 4px rgba(38,89,67,.08);
    }
    .textarea-control{
      min-height:112px;
      resize:vertical;
    }
    .tiny-label{
      font-size:.86rem;
      color:var(--muted);
      font-weight:600;
    }
    .icon-badge{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, #edf5ef, #fdfaf4);
      border:1px solid rgba(215,225,217,.95);
      color:var(--brand);
      box-shadow:var(--shadow-sm);
      flex:none;
    }
    .glow-card{
      position:relative;
      overflow:hidden;
    }
    .glow-card::after{
      content:"";
      position:absolute;
      right:-40px;
      top:-40px;
      width:140px;
      height:140px;
      background:radial-gradient(circle, rgba(216,137,43,.18), transparent 70%);
      pointer-events:none;
    }
    .current-path{
      border:1px solid rgba(215,225,217,.95);
      background:rgba(255,255,255,.82);
      border-radius:999px;
      box-shadow:var(--shadow-sm);
      padding:.4rem .75rem;
    }
    .menu-btn{
      display:none;
    }
    @media (max-width: 1024px){
      .hero-grid,
      .main-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .search-shell{
        min-width:220px;
      }
    }
    @media (max-width: 768px){
      .section{padding:3.3rem 0}
      .site-container{width:min(var(--container), calc(100% - 28px))}
      .desktop-only{display:none !important;}
      .menu-btn{display:inline-flex;}
      .nav-links{gap:.25rem}
      .nav-link{padding:.62rem .88rem}
      .footer-bottom{flex-direction:column; align-items:flex-start}
      .search-shell{min-width:0; width:100%}
      .menu-stack{display:grid; gap:.9rem}
    }
    @media (max-width: 520px){
      .brand-text{font-size:.98rem}
      .btn-primary,.btn-secondary,.btn-ghost{width:100%; justify-content:center}
      .stat-pill{padding:.82rem .9rem}
      .faq-item summary{padding:1rem}
      .faq-answer{padding:0 1rem 1rem}
    }
    .focus-ring:focus-visible{
      outline:none;
      box-shadow:0 0 0 4px rgba(216,137,43,.18), 0 0 0 1px rgba(216,137,43,.35);
    }