/* roulang page: index */
:root{
      --bg:#0b0c09;
      --bg-2:#10130f;
      --surface:#151914;
      --surface-2:#1a1f19;
      --surface-3:#20261f;
      --border:rgba(214,226,208,.11);
      --border-strong:rgba(214,226,208,.20);
      --text:#eef2ea;
      --muted:#a4ae9f;
      --muted-2:#7e8879;
      --brand:#a7c45a;
      --brand-2:#d1e26f;
      --accent:#ff9d3b;
      --accent-2:#e1f05c;
      --shadow:0 18px 42px rgba(0,0,0,.34);
      --shadow-strong:0 26px 64px rgba(0,0,0,.48);
      --radius:18px;
      --radius-sm:14px;
      --radius-lg:24px;
      --container:1320px;
      --t:.24s cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{
      scroll-behavior:smooth;
      scroll-padding-top:92px;
    }
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 16%, rgba(167,196,90,.12), transparent 26%),
        radial-gradient(circle at 82% 4%, rgba(255,157,59,.08), transparent 24%),
        linear-gradient(180deg, #090a08 0%, #0c0f0b 100%);
      font-family:PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.68), rgba(0,0,0,.18) 60%, transparent 100%);
      opacity:.55;
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:auto 0 0;
      height:180px;
      pointer-events:none;
      background:linear-gradient(180deg, transparent, rgba(11,12,9,.88));
      z-index:-1;
    }

    a{
      color:inherit;
      text-decoration:none;
      transition:color var(--t), transform var(--t), border-color var(--t), background-color var(--t), box-shadow var(--t), opacity var(--t);
    }
    a:hover{color:var(--brand-2)}
    img{max-width:100%;display:block}
    button, input, textarea, select{
      font:inherit;
    }
    ::selection{
      background:rgba(167,196,90,.34);
      color:#fff;
    }
    :focus-visible{
      outline:3px solid rgba(255,157,59,.85);
      outline-offset:2px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(9,10,8,.94);
      border-bottom:1px solid var(--border);
      box-shadow:0 10px 30px rgba(0,0,0,.12);
      backdrop-filter:saturate(120%);
    }
    .nav-shell{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:
        linear-gradient(145deg, rgba(167,196,90,.95), rgba(225,240,92,.75));
      color:#11140f;
      font-weight:900;
      box-shadow:0 12px 24px rgba(167,196,90,.22);
      letter-spacing:.04em;
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size:1.05rem;
      letter-spacing:.02em;
    }
    .brand-text span{
      color:var(--muted);
      font-size:.82rem;
      margin-top:4px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
      padding:6px;
      border:1px solid var(--border);
      border-radius:999px;
      background:rgba(255,255,255,.015);
    }
    .nav-links a{
      padding:11px 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:.96rem;
      font-weight:600;
      line-height:1;
      white-space:nowrap;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.03);
    }
    .nav-links a.active{
      color:#121610;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow:0 10px 24px rgba(167,196,90,.20);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn-ui{
      height:46px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform var(--t), box-shadow var(--t), border-color var(--t), background-color var(--t), color var(--t), opacity var(--t);
      white-space:nowrap;
      cursor:pointer;
    }
    .btn-ui:active{transform:translateY(1px) scale(.98)}
    .btn-primary-ui{
      color:#13160f;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow:0 14px 28px rgba(167,196,90,.16);
    }
    .btn-primary-ui:hover{
      color:#10130f;
      transform:translateY(-1px);
      box-shadow:0 18px 32px rgba(167,196,90,.24);
    }
    .btn-outline-ui{
      color:var(--text);
      background:rgba(255,255,255,.02);
      border-color:var(--border-strong);
    }
    .btn-outline-ui:hover{
      background:rgba(255,255,255,.045);
      border-color:rgba(255,157,59,.42);
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 14px 26px rgba(0,0,0,.18);
    }
    .btn-link-ui{
      color:var(--muted);
      padding-inline:10px;
    }
    .btn-link-ui:hover{color:var(--text)}
    .menu-toggle{
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid var(--border-strong);
      background:rgba(255,255,255,.02);
      color:var(--text);
      display:inline-flex;
      align-items:center;
      justify-content:center;
    }
    .menu-toggle:hover{
      border-color:rgba(255,157,59,.44);
      background:rgba(255,255,255,.05);
    }

    .site-offcanvas{
      background:linear-gradient(180deg, #0d100c, #111510);
      color:var(--text);
      border-left:1px solid var(--border);
    }
    .site-offcanvas .offcanvas-header{
      border-bottom:1px solid var(--border);
    }
    .site-offcanvas .offcanvas-body{
      padding:22px;
    }
    .mobile-menu{
      display:grid;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mobile-menu a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      min-height:52px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--text);
      font-weight:600;
    }
    .mobile-menu a:hover{
      transform:translateY(-1px);
      border-color:rgba(255,157,59,.35);
      background:rgba(255,255,255,.05);
    }
    .mobile-cta{
      display:grid;
      gap:10px;
      margin-top:18px;
    }

    main{
      position:relative;
      z-index:1;
    }
    .section{
      padding:84px 0;
      position:relative;
    }
    .section-tight{
      padding-top:28px;
    }
    .section-head{
      display:flex;
      flex-direction:column;
      gap:14px;
      margin-bottom:28px;
      max-width:860px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      width:max-content;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--brand-2);
      font-size:.84rem;
      font-weight:700;
      letter-spacing:.12em;
      text-transform:uppercase;
    }
    .section-kicker::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(255,157,59,.14);
    }
    .section-title{
      margin:0;
      font-size:clamp(2rem, 3.2vw, 3.2rem);
      line-height:1.12;
      letter-spacing:-.03em;
      text-wrap:balance;
    }
    .section-lead{
      margin:0;
      max-width:760px;
      color:var(--muted);
      font-size:1.02rem;
      line-height:1.85;
    }

    .hero{
      padding:58px 0 50px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.05fr) minmax(340px, .95fr);
      gap:28px;
      align-items:stretch;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:20px;
      min-height:calc(100vh - 170px);
    }
    .hero-chipline{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
    }
    .flash-chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(255,157,59,.32);
      background:rgba(255,157,59,.09);
      color:#ffd8b0;
      font-size:.86rem;
      font-weight:700;
    }
    .flash-chip .dot{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 4px rgba(255,157,59,.14);
    }
    .hero-title{
      margin:0;
      font-size:clamp(2.55rem, 5vw, 5rem);
      line-height:1.02;
      letter-spacing:-.05em;
      text-wrap:balance;
    }
    .hero-title em{
      font-style:normal;
      color:var(--brand-2);
      text-shadow:0 0 18px rgba(167,196,90,.16);
    }
    .hero-lead{
      margin:0;
      max-width:760px;
      color:var(--muted);
      font-size:1.08rem;
      line-height:1.9;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .hero-data{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:4px;
    }
    .data-pill{
      min-width:132px;
      padding:12px 14px;
      border-radius:16px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      box-shadow:0 8px 20px rgba(0,0,0,.12);
    }
    .data-pill strong{
      display:block;
      font-size:1.1rem;
      color:#fff;
      line-height:1.2;
    }
    .data-pill span{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:.86rem;
    }

    .hero-stage{
      position:relative;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00)),
        linear-gradient(180deg, rgba(21,25,20,.98), rgba(12,14,10,.96));
      box-shadow:var(--shadow-strong);
      overflow:hidden;
      min-height:100%;
      display:flex;
      flex-direction:column;
      padding:22px;
      isolation:isolate;
    }
    .hero-stage::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 18% 18%, rgba(167,196,90,.14), transparent 22%),
        radial-gradient(circle at 84% 0%, rgba(255,157,59,.12), transparent 24%),
        linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px);
      background-size:auto, auto, 100% 28px;
      opacity:.95;
      z-index:-2;
    }
    .hero-stage::after{
      content:"";
      position:absolute;
      inset:auto -8% 16% 36%;
      height:220px;
      background:radial-gradient(circle, rgba(167,196,90,.16), transparent 66%);
      filter:blur(10px);
      z-index:-1;
    }
    .hero-stage-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .status-chip{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:9px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.03);
      border:1px solid var(--border);
      color:var(--text);
      font-weight:700;
      font-size:.86rem;
    }
    .status-chip .signal{
      width:9px;
      height:9px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--accent), var(--brand-2));
      box-shadow:0 0 0 4px rgba(255,157,59,.12);
    }
    .hero-note{
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-panel{
      border:1px solid var(--border);
      border-radius:22px;
      background:linear-gradient(180deg, rgba(28,33,26,.88), rgba(17,20,15,.92));
      overflow:hidden;
      box-shadow:0 14px 32px rgba(0,0,0,.22);
    }
    .hero-visual{
      padding:24px;
      min-height:235px;
      border-bottom:1px solid var(--border);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      background:
        linear-gradient(135deg, rgba(167,196,90,.10), transparent 36%),
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00));
    }
    .hero-visual h2{
      margin:0;
      font-size:1.75rem;
      line-height:1.1;
      letter-spacing:-.03em;
    }
    .hero-visual p{
      margin:10px 0 0;
      max-width:26ch;
      color:var(--muted);
    }
    .hero-visual-grid{
      display:grid;
      grid-template-columns:repeat(3, 1fr);
      gap:12px;
      padding:18px;
    }
    .mini-stat{
      padding:14px 12px;
      border-radius:16px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
    }
    .mini-stat strong{
      display:block;
      font-size:1.1rem;
      color:#fff;
      line-height:1.1;
    }
    .mini-stat span{
      display:block;
      margin-top:4px;
      color:var(--muted);
      font-size:.85rem;
    }
    .hero-checks{
      display:grid;
      gap:10px;
      padding:0 18px 18px;
    }
    .check-item{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--muted);
      font-size:.96rem;
    }
    .check-item i{
      width:20px;
      height:20px;
      border-radius:50%;
      background:rgba(167,196,90,.15);
      color:var(--brand-2);
      flex:0 0 auto;
      display:grid;
      place-items:center;
      font-style:normal;
      font-size:.75rem;
      margin-top:2px;
    }

    .panel{
      border:1px solid var(--border);
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(24,28,22,.96), rgba(19,22,18,.95));
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
      transition:transform var(--t), border-color var(--t), box-shadow var(--t), background-color var(--t);
    }
    .panel:hover{
      transform:translateY(-3px);
      border-color:rgba(255,157,59,.25);
      box-shadow:var(--shadow-strong);
    }
    .panel-inner{
      padding:24px;
    }
    .panel-head{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      margin-bottom:18px;
    }
    .panel-title{
      margin:0;
      font-size:1.28rem;
      line-height:1.25;
      letter-spacing:-.02em;
    }
    .panel-sub{
      margin:8px 0 0;
      color:var(--muted);
      font-size:.96rem;
      line-height:1.8;
    }
    .label{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,157,59,.1);
      border:1px solid rgba(255,157,59,.18);
      color:#ffd7ad;
      font-size:.8rem;
      font-weight:700;
      white-space:nowrap;
    }
    .label.soft{
      background:rgba(167,196,90,.1);
      border-color:rgba(167,196,90,.18);
      color:#d8ef8b;
    }
    .tag-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--muted);
      font-size:.85rem;
      line-height:1;
      white-space:nowrap;
    }
    .tag.accent{
      color:#10140f;
      border-color:transparent;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      font-weight:700;
    }

    .feature-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-main{
      display:grid;
      gap:18px;
    }
    .feature-lead{
      display:grid;
      grid-template-columns:1fr auto;
      gap:14px;
      align-items:center;
      padding:22px;
      border-radius:22px;
      border:1px solid var(--border);
      background:
        linear-gradient(135deg, rgba(167,196,90,.07), rgba(255,255,255,.01)),
        linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.00));
    }
    .feature-lead h3{
      margin:0;
      font-size:1.45rem;
      line-height:1.16;
    }
    .feature-lead p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.82;
    }
    .feature-callout{
      min-width:152px;
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.02);
      border:1px solid var(--border);
      text-align:left;
    }
    .feature-callout strong{
      display:block;
      font-size:1.4rem;
      line-height:1;
      color:var(--brand-2);
    }
    .feature-callout span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:.85rem;
    }
    .feature-list{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:18px;
    }
    .feature-item{
      padding:20px;
      border-radius:20px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.015);
      min-height:170px;
    }
    .feature-item:hover{
      border-color:rgba(255,157,59,.28);
      background:rgba(255,255,255,.03);
    }
    .feature-item .icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:rgba(167,196,90,.12);
      color:var(--brand-2);
      font-size:1.1rem;
      margin-bottom:14px;
      border:1px solid rgba(167,196,90,.16);
    }
    .feature-item h4{
      margin:0;
      font-size:1.08rem;
      line-height:1.24;
    }
    .feature-item p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.76;
      font-size:.95rem;
    }
    .feature-side{
      display:grid;
      gap:18px;
    }
    .side-card{
      padding:22px;
      border-radius:22px;
      border:1px solid var(--border);
      background:
        linear-gradient(180deg, rgba(25,29,23,.96), rgba(18,21,17,.95));
      box-shadow:var(--shadow);
      transition:transform var(--t), border-color var(--t), box-shadow var(--t);
    }
    .side-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,157,59,.24);
      box-shadow:var(--shadow-strong);
    }
    .side-card h4{
      margin:0;
      font-size:1.06rem;
    }
    .side-card p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.82;
      font-size:.95rem;
    }
    .side-list{
      margin:16px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .side-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.7;
    }
    .side-list li::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      flex:0 0 auto;
      margin-top:8px;
      box-shadow:0 0 0 4px rgba(255,157,59,.12);
    }

    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:18px;
    }
    .scenario-card{
      padding:22px;
      border-radius:20px;
      border:1px solid var(--border);
      background:linear-gradient(180deg, rgba(24,28,22,.96), rgba(18,21,17,.95));
      position:relative;
      overflow:hidden;
      min-height:220px;
      transition:transform var(--t), border-color var(--t), box-shadow var(--t);
    }
    .scenario-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, transparent, rgba(255,255,255,.02)),
        linear-gradient(90deg, transparent 0, rgba(255,157,59,.08) 50%, transparent 100%);
      opacity:.9;
      pointer-events:none;
    }
    .scenario-card:hover{
      transform:translateY(-3px);
      border-color:rgba(167,196,90,.28);
      box-shadow:var(--shadow);
    }
    .scenario-index{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--accent);
      font-size:.8rem;
      font-weight:800;
      letter-spacing:.16em;
      text-transform:uppercase;
    }
    .scenario-index::after{
      content:"";
      width:42px;
      height:1px;
      background:linear-gradient(90deg, rgba(255,157,59,.95), transparent);
    }
    .scenario-card h4{
      margin:16px 0 0;
      font-size:1.08rem;
      line-height:1.24;
    }
    .scenario-card p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.82;
      font-size:.95rem;
    }
    .scenario-actions{
      margin-top:16px;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }

    .case-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:20px;
      align-items:stretch;
    }
    .case-main{
      padding:24px;
      border-radius:24px;
      border:1px solid var(--border);
      background:
        linear-gradient(135deg, rgba(167,196,90,.08), rgba(255,255,255,.01)),
        linear-gradient(180deg, rgba(22,26,21,.98), rgba(17,20,16,.97));
      box-shadow:var(--shadow);
    }
    .case-main .quote{
      margin:0;
      font-size:1.25rem;
      line-height:1.8;
      letter-spacing:-.01em;
    }
    .case-main .quote-mark{
      display:block;
      margin-bottom:12px;
      color:var(--brand-2);
      font-size:3rem;
      line-height:1;
    }
    .case-main .author{
      margin-top:18px;
      color:var(--muted);
      font-size:.95rem;
    }
    .case-metrics{
      margin-top:20px;
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:12px;
    }
    .metric-box{
      padding:16px;
      border-radius:18px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
    }
    .metric-box strong{
      display:block;
      font-size:1.2rem;
      color:#fff;
      line-height:1.1;
    }
    .metric-box span{
      display:block;
      margin-top:6px;
      color:var(--muted);
      font-size:.84rem;
    }
    .case-side{
      display:grid;
      gap:18px;
    }
    .case-note{
      padding:20px;
      border-radius:22px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
    }
    .case-note h4{
      margin:0;
      font-size:1.05rem;
    }
    .case-note p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.8;
      font-size:.95rem;
    }
    .case-note .bars{
      display:grid;
      gap:10px;
      margin-top:16px;
    }
    .bars .bar{
      height:10px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      overflow:hidden;
      border:1px solid var(--border);
    }
    .bars .bar span{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, var(--brand), var(--brand-2));
    }

    .pricing-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0, 1fr));
      gap:18px;
    }
    .pricing-card{
      padding:22px;
      border-radius:22px;
      border:1px solid var(--border);
      background:linear-gradient(180deg, rgba(24,28,22,.96), rgba(17,20,16,.97));
      box-shadow:var(--shadow);
      transition:transform var(--t), border-color var(--t), box-shadow var(--t);
      position:relative;
      overflow:hidden;
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .pricing-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,157,59,.28);
      box-shadow:var(--shadow-strong);
    }
    .pricing-card.recommended{
      border-color:rgba(167,196,90,.42);
      background:
        radial-gradient(circle at 50% 0%, rgba(167,196,90,.14), transparent 38%),
        linear-gradient(180deg, rgba(26,31,24,.99), rgba(18,22,17,.97));
    }
    .pricing-badge{
      display:inline-flex;
      width:max-content;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(255,157,59,.12);
      border:1px solid rgba(255,157,59,.18);
      color:#ffd8b1;
      font-size:.8rem;
      font-weight:700;
    }
    .pricing-badge.green{
      background:rgba(167,196,90,.12);
      border-color:rgba(167,196,90,.18);
      color:#d9ef8e;
    }
    .pricing-head{
      margin-top:14px;
    }
    .pricing-head h4{
      margin:0;
      font-size:1.15rem;
    }
    .price{
      margin-top:12px;
      display:flex;
      align-items:flex-end;
      gap:8px;
      flex-wrap:wrap;
    }
    .price strong{
      font-size:2.1rem;
      line-height:1;
      letter-spacing:-.03em;
    }
    .price span{
      color:var(--muted);
      font-size:.95rem;
      margin-bottom:4px;
    }
    .pricing-list{
      margin:18px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .pricing-list li{
      position:relative;
      padding-left:22px;
      color:var(--muted);
      line-height:1.7;
      font-size:.95rem;
    }
    .pricing-list li::before{
      content:"";
      position:absolute;
      left:0;
      top:.62em;
      width:10px;
      height:10px;
      border-radius:50%;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow:0 0 0 4px rgba(167,196,90,.12);
    }
    .pricing-foot{
      margin-top:auto;
      padding-top:18px;
      display:grid;
      gap:10px;
    }

    .updates-grid{
      display:grid;
      grid-template-columns:minmax(0, 1.15fr) minmax(320px, .85fr);
      gap:20px;
      align-items:start;
    }
    .content-list{
      display:grid;
      gap:14px;
    }
    .content-item{
      padding:20px;
      border-radius:20px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      display:grid;
      gap:12px;
      transition:transform var(--t), border-color var(--t), box-shadow var(--t), background-color var(--t);
    }
    .content-item:hover{
      transform:translateY(-3px);
      border-color:rgba(255,157,59,.24);
      background:rgba(255,255,255,.035);
      box-shadow:var(--shadow);
    }
    .content-item__meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    .meta-time{
      color:var(--muted-2);
      font-size:.86rem;
    }
    .content-item h3{
      margin:0;
      font-size:1.08rem;
      line-height:1.45;
    }
    .content-item h3 a:hover{
      color:var(--brand-2);
    }
    .content-item p{
      margin:0;
      color:var(--muted);
      line-height:1.82;
      font-size:.95rem;
    }
    .content-action{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:2px;
      color:var(--brand-2);
      font-weight:700;
      font-size:.94rem;
    }
    .content-action span{
      opacity:.8;
    }
    .content-sidebar{
      display:grid;
      gap:18px;
      position:sticky;
      top:96px;
    }
    .sidebar-card{
      padding:22px;
      border-radius:22px;
      border:1px solid var(--border);
      background:linear-gradient(180deg, rgba(23,27,21,.98), rgba(17,20,16,.97));
      box-shadow:var(--shadow);
    }
    .sidebar-card h4{
      margin:0;
      font-size:1.08rem;
    }
    .sidebar-card p{
      margin:10px 0 0;
      color:var(--muted);
      line-height:1.8;
      font-size:.95rem;
    }
    .topic-list{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .topic-list .tag{
      background:rgba(255,255,255,.02);
    }
    .empty-state{
      padding:26px;
      border-radius:20px;
      border:1px dashed rgba(214,226,208,.18);
      background:rgba(255,255,255,.02);
      color:var(--muted);
      text-align:center;
      font-weight:600;
      letter-spacing:.01em;
    }

    .faq-wrap .accordion-item{
      background:transparent;
      border:1px solid var(--border);
      border-radius:18px !important;
      overflow:hidden;
      margin-bottom:14px;
      box-shadow:var(--shadow);
    }
    .faq-wrap .accordion-button{
      background:linear-gradient(180deg, rgba(23,27,21,.98), rgba(18,21,17,.96));
      color:var(--text);
      font-weight:700;
      font-size:1rem;
      padding:18px 20px;
      box-shadow:none;
    }
    .faq-wrap .accordion-button:not(.collapsed){
      color:#fff;
      background:linear-gradient(180deg, rgba(28,33,26,.98), rgba(20,23,19,.96));
      box-shadow:none;
    }
    .faq-wrap .accordion-button::after{
      filter:invert(1) brightness(1.5);
      opacity:.8;
    }
    .faq-wrap .accordion-body{
      padding:0 20px 18px;
      color:var(--muted);
      line-height:1.9;
      background:linear-gradient(180deg, rgba(255,255,255,.01), rgba(255,255,255,.00));
    }
    .faq-wrap .accordion-button:focus{
      box-shadow:0 0 0 .25rem rgba(255,157,59,.16);
      border-color:rgba(255,157,59,.26);
    }

    .cta-box{
      padding:26px;
      border-radius:26px;
      border:1px solid rgba(167,196,90,.22);
      background:
        radial-gradient(circle at 18% 20%, rgba(167,196,90,.14), transparent 26%),
        radial-gradient(circle at 86% 0%, rgba(255,157,59,.12), transparent 24%),
        linear-gradient(180deg, rgba(22,26,21,.98), rgba(17,20,16,.98));
      box-shadow:var(--shadow-strong);
    }
    .cta-box .section-title{
      margin-bottom:0;
    }
    .cta-box .section-lead{
      margin-top:12px;
    }
    .contact-panel{
      padding:22px;
      border-radius:22px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      box-shadow:var(--shadow);
    }
    .form-control,
    .form-select{
      min-height:48px;
      border-radius:14px;
      border:1px solid var(--border);
      background:#11140f;
      color:var(--text);
      box-shadow:none;
      padding:0.85rem 1rem;
    }
    .form-control:focus,
    .form-select:focus{
      border-color:rgba(255,157,59,.5);
      background:#121611;
      color:var(--text);
      box-shadow:0 0 0 .25rem rgba(255,157,59,.14);
    }
    .form-control::placeholder{
      color:var(--muted-2);
    }
    textarea.form-control{
      min-height:118px;
      resize:vertical;
    }
    .form-note{
      margin-top:12px;
      color:var(--muted);
      font-size:.88rem;
      line-height:1.8;
    }

    .site-footer{
      padding:34px 0 30px;
      border-top:1px solid var(--border);
      background:linear-gradient(180deg, rgba(8,9,7,.0), rgba(9,10,8,.76));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .9fr .9fr;
      gap:20px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      line-height:1.9;
    }
    .footer-title{
      margin:0 0 14px;
      color:#fff;
      font-size:1rem;
      font-weight:800;
      letter-spacing:.02em;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      width:max-content;
    }
    .footer-links a:hover{
      color:var(--text);
      transform:translateX(2px);
    }
    .footer-meta{
      display:grid;
      gap:10px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.8;
    }
    .footer-bottom{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid var(--border);
      color:var(--muted-2);
      font-size:.9rem;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }

    .fade-up{
      animation:fadeUp .7s ease both;
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(6px)}
      to{opacity:1;transform:translateY(0)}
    }

    @media (max-width: 1199.98px){
      .hero-grid,
      .feature-grid,
      .case-grid,
      .updates-grid{
        grid-template-columns:1fr;
      }
      .content-sidebar{
        position:static;
      }
      .scenario-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .pricing-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
    }
    @media (max-width: 991.98px){
      .nav-links,
      .header-actions{
        display:none !important;
      }
      .nav-shell{
        min-height:72px;
      }
      .hero-copy{
        min-height:auto;
        padding-top:8px;
      }
      .hero{
        padding-top:36px;
      }
      .feature-list{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .footer-grid > :first-child{
        grid-column:1 / -1;
      }
      .case-metrics{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 767.98px){
      .section{
        padding:66px 0;
      }
      .hero-title{
        font-size:clamp(2.1rem, 9vw, 3.4rem);
      }
      .hero-visual-grid{
        grid-template-columns:1fr;
      }
      .scenario-grid,
      .pricing-grid{
        grid-template-columns:1fr;
      }
      .hero-actions .btn-ui,
      .pricing-foot .btn-ui,
      .cta-inline .btn-ui{
        width:100%;
      }
      .hero-actions,
      .pricing-foot,
      .cta-inline{
        display:grid;
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .nav-shell{
        gap:12px;
      }
      .hero-copy{
        gap:16px;
      }
      .hero-stage{
        padding:18px;
      }
      .panel-inner,
      .side-card,
      .feature-item,
      .scenario-card,
      .pricing-card,
      .content-item,
      .sidebar-card,
      .contact-panel,
      .cta-box{
        padding:20px;
      }
    }
    @media (max-width: 575.98px){
      .brand-text span{
        display:none;
      }
      .brand-text strong{
        font-size:1rem;
      }
      .section-title{
        font-size:clamp(1.7rem, 8vw, 2.4rem);
      }
      .hero-data{
        gap:10px;
      }
      .data-pill{
        min-width:calc(50% - 6px);
        flex:1 1 calc(50% - 6px);
      }
      .section-lead,
      .hero-lead{
        font-size:.98rem;
      }
      .hero-chipline{
        gap:8px;
      }
      .feature-lead{
        grid-template-columns:1fr;
      }
      .feature-callout{
        min-width:0;
      }
      .btn-ui{
        width:100%;
      }
      .hero-actions,
      .cta-inline,
      .mobile-cta{
        grid-template-columns:1fr;
      }
      .content-action{
        flex-direction:column;
        align-items:flex-start;
      }
      .footer-bottom{
        flex-direction:column;
      }
    }

/* roulang page: article */
:root{
      --bg:#0b0c09;
      --bg-2:#10130f;
      --surface:#151914;
      --surface-2:#1a1f19;
      --surface-3:#20261f;
      --border:rgba(214,226,208,.11);
      --border-strong:rgba(214,226,208,.20);
      --text:#eef2ea;
      --muted:#a4ae9f;
      --muted-2:#7e8879;
      --brand:#a7c45a;
      --brand-2:#d1e26f;
      --accent:#ff9d3b;
      --accent-2:#e1f05c;
      --danger:#ff6b6b;
      --shadow:0 18px 42px rgba(0,0,0,.34);
      --shadow-strong:0 26px 64px rgba(0,0,0,.48);
      --radius:18px;
      --radius-sm:14px;
      --radius-lg:24px;
      --container:1320px;
      --t:.24s cubic-bezier(.2,.8,.2,1);
    }

    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:92px}
    body{
      margin:0;
      color:var(--text);
      background:
        radial-gradient(circle at 18% 16%, rgba(167,196,90,.12), transparent 26%),
        radial-gradient(circle at 82% 4%, rgba(255,157,59,.08), transparent 24%),
        linear-gradient(180deg, #090a08 0%, #0c0f0b 100%);
      font-family:PingFang SC, Microsoft YaHei, Noto Sans SC, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
      line-height:1.7;
      overflow-x:hidden;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      -moz-osx-font-smoothing:grayscale;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.015) 1px, transparent 1px);
      background-size:48px 48px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.68), rgba(0,0,0,.18) 60%, transparent 100%);
      opacity:.55;
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:auto 0 0;
      height:180px;
      pointer-events:none;
      background:linear-gradient(180deg, transparent, rgba(11,12,9,.88));
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:color var(--t), transform var(--t), border-color var(--t), background-color var(--t), box-shadow var(--t), opacity var(--t)}
    a:hover{color:var(--brand-2)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(167,196,90,.24);color:#fff}
    :focus-visible{outline:2px solid rgba(255,157,59,.82);outline-offset:3px}

    .container{max-width:var(--container)!important;padding-left:clamp(16px,2vw,24px);padding-right:clamp(16px,2vw,24px)}
    .site-header{
      position:sticky;
      top:0;
      z-index:1030;
      background:rgba(9,10,8,.94);
      border-bottom:1px solid var(--border);
      box-shadow:0 10px 30px rgba(0,0,0,.12);
      backdrop-filter:saturate(120%) blur(8px);
    }
    .nav-shell{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(145deg, rgba(167,196,90,.95), rgba(225,240,92,.75));
      color:#11140f;
      font-weight:900;
      box-shadow:0 12px 24px rgba(167,196,90,.22);
      letter-spacing:.04em;
      flex:0 0 auto;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-text strong{
      font-size:1.05rem;
      letter-spacing:.02em;
      color:var(--text);
    }
    .brand-text span{
      color:var(--muted);
      font-size:.82rem;
      margin-top:4px;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:4px;
      padding:6px;
      border:1px solid var(--border);
      border-radius:999px;
      background:rgba(255,255,255,.015);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.02);
    }
    .nav-links a{
      padding:11px 15px;
      border-radius:999px;
      color:var(--muted);
      font-size:.96rem;
      font-weight:600;
      line-height:1;
      white-space:nowrap;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.03);
    }
    .nav-links a.active{
      color:#121610;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow:0 10px 24px rgba(167,196,90,.20);
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn-ui{
      height:46px;
      padding:0 18px;
      border-radius:14px;
      border:1px solid transparent;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform var(--t), box-shadow var(--t), border-color var(--t), background-color var(--t), color var(--t), opacity var(--t);
      white-space:nowrap;
      cursor:pointer;
      user-select:none;
    }
    .btn-ui:active{transform:translateY(1px) scale(.98)}
    .btn-primary-ui{
      color:#13160f;
      background:linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow:0 14px 28px rgba(167,196,90,.16);
    }
    .btn-primary-ui:hover{
      color:#10130f;
      transform:translateY(-1px);
      box-shadow:0 18px 32px rgba(167,196,90,.24);
    }
    .btn-outline-ui{
      color:var(--text);
      background:rgba(255,255,255,.02);
      border-color:var(--border-strong);
    }
    .btn-outline-ui:hover{
      background:rgba(255,255,255,.045);
      border-color:rgba(255,157,59,.42);
      color:#fff;
      transform:translateY(-1px);
      box-shadow:0 14px 26px rgba(0,0,0,.18);
    }
    .btn-link-ui{
      color:var(--muted);
      padding-inline:10px;
    }
    .btn-link-ui:hover{color:var(--text)}
    .btn-sm-ui{
      height:40px;
      padding-inline:14px;
      border-radius:12px;
      font-size:.95rem;
    }
    .menu-toggle{
      width:46px;
      height:46px;
      border-radius:14px;
      border:1px solid var(--border-strong);
      background:rgba(255,255,255,.02);
      color:var(--text);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
    }
    .menu-toggle:hover{
      border-color:rgba(255,157,59,.44);
      background:rgba(255,255,255,.05);
      color:#fff;
    }
    .menu-toggle .bar{
      width:18px;
      height:2px;
      border-radius:99px;
      background:currentColor;
      box-shadow:0 -6px 0 currentColor, 0 6px 0 currentColor;
      opacity:.95;
    }
    .site-offcanvas{
      background:linear-gradient(180deg, #0d100c, #111510);
      color:var(--text);
      border-left:1px solid var(--border);
    }
    .site-offcanvas .offcanvas-header{
      border-bottom:1px solid var(--border);
      padding:18px 18px 14px;
    }
    .site-offcanvas .offcanvas-body{
      padding:18px;
    }
    .mobile-menu{
      display:grid;
      gap:8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mobile-menu a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      min-height:52px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--text);
      font-weight:600;
    }
    .mobile-menu a:hover,
    .mobile-menu a:focus-visible{
      border-color:rgba(167,196,90,.45);
      background:rgba(255,255,255,.04);
      transform:translateY(-1px);
    }
    .mobile-cta{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      margin-top:16px;
    }

    .section-gap{padding:clamp(24px,4vw,48px) 0}
    .panel{
      position:relative;
      background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
      border:1px solid var(--border);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .panel::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(255,255,255,.02), transparent 24%);
      pointer-events:none;
    }
    .panel:hover{
      border-color:var(--border-strong);
      box-shadow:var(--shadow-strong);
      transform:translateY(-2px);
    }
    .panel-soft{
      background:linear-gradient(180deg, rgba(26,31,25,.98), rgba(17,20,15,.96));
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--brand-2);
      font-size:.9rem;
      font-weight:700;
      letter-spacing:.12em;
      text-transform:uppercase;
      margin-bottom:10px;
    }
    .section-kicker::before{
      content:"";
      width:18px;
      height:2px;
      border-radius:99px;
      background:linear-gradient(90deg, var(--accent), var(--brand-2));
      box-shadow:0 0 10px rgba(255,157,59,.22);
    }
    .section-title{
      font-size:clamp(1.55rem,2.6vw,2.4rem);
      font-weight:800;
      line-height:1.16;
      letter-spacing:-.02em;
      margin:0;
    }
    .section-lead{
      margin:12px 0 0;
      color:var(--muted);
      max-width:70ch;
      font-size:1.02rem;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:6px;
      min-height:32px;
      padding:6px 12px;
      border-radius:999px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--muted);
      font-size:.88rem;
      line-height:1;
      white-space:nowrap;
    }
    .chip-accent{
      color:#161912;
      background:linear-gradient(135deg, rgba(167,196,90,.95), rgba(225,240,92,.75));
      border-color:transparent;
    }
    .chip-outline-accent{
      color:#fff;
      border-color:rgba(255,157,59,.30);
      background:rgba(255,157,59,.08);
    }
    .breadcrumb-shell{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
      padding:12px 16px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.015);
      color:var(--muted);
      font-size:.95rem;
    }
    .breadcrumb-shell a{
      color:var(--muted);
    }
    .breadcrumb-shell a:hover{color:var(--brand-2)}
    .breadcrumb-shell span:last-child{color:var(--text)}
    .article-top{
      padding-top:22px;
      padding-bottom:12px;
    }
    .top-grid{
      display:grid;
      grid-template-columns:minmax(0,1.55fr) minmax(300px,.85fr);
      gap:18px;
      align-items:stretch;
    }
    .tdk-panel{
      padding:26px;
      min-height:240px;
    }
    .tdk-title{
      margin:0;
      font-size:clamp(1.65rem,3.4vw,2.9rem);
      line-height:1.06;
      letter-spacing:-.03em;
      font-weight:900;
    }
    .tdk-desc{
      margin:14px 0 0;
      color:var(--muted);
      font-size:1.02rem;
      max-width:75ch;
    }
    .tdk-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .visual-card{
      padding:22px;
      min-height:240px;
      display:flex;
      flex-direction:column;
      gap:16px;
      justify-content:space-between;
      background:
        radial-gradient(circle at 22% 18%, rgba(167,196,90,.12), transparent 26%),
        radial-gradient(circle at 78% 10%, rgba(255,157,59,.10), transparent 22%),
        linear-gradient(180deg, rgba(26,31,25,.98), rgba(17,20,15,.96));
    }
    .visual-grid{
      position:relative;
      height:118px;
      border-radius:18px;
      border:1px solid rgba(214,226,208,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.03), transparent),
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
      background-size:auto, 26px 26px, 26px 26px;
      overflow:hidden;
    }
    .visual-grid::before{
      content:"";
      position:absolute;
      inset:14px;
      border-radius:14px;
      border:1px dashed rgba(167,196,90,.22);
    }
    .visual-grid::after{
      content:"";
      position:absolute;
      inset:0;
      background:
        radial-gradient(circle at 30% 30%, rgba(167,196,90,.16), transparent 24%),
        radial-gradient(circle at 72% 42%, rgba(255,157,59,.10), transparent 28%);
      mix-blend-mode:screen;
      opacity:.9;
    }
    .visual-caption{
      display:flex;
      align-items:center;
      justify-content:space-between;
      color:var(--muted);
      font-size:.92rem;
    }
    .visual-stats{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:10px;
    }
    .visual-stats > div{
      padding:12px 10px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      text-align:center;
    }
    .visual-stats strong{
      display:block;
      color:var(--text);
      font-size:1.1rem;
      line-height:1.1;
    }
    .visual-stats span{
      color:var(--muted);
      font-size:.8rem;
    }
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,2.1fr) minmax(300px,.9fr);
      gap:20px;
      align-items:start;
    }
    .article-card{
      padding:26px;
    }
    .article-card h1{
      margin:10px 0 0;
      font-size:clamp(1.85rem,3.6vw,3.05rem);
      line-height:1.1;
      letter-spacing:-.035em;
      font-weight:900;
    }
    .article-meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px 14px;
      align-items:center;
      margin-top:14px;
      color:var(--muted);
      font-size:.95rem;
    }
    .article-meta-row .meta-dot{
      width:4px;
      height:4px;
      border-radius:50%;
      background:rgba(255,255,255,.26);
      display:inline-block;
      margin:0 2px;
    }
    .article-lead{
      margin:16px 0 0;
      color:#d9e0d3;
      font-size:1.05rem;
      padding:16px 18px;
      border-left:3px solid rgba(167,196,90,.68);
      background:rgba(167,196,90,.04);
      border-radius:0 14px 14px 0;
    }
    .article-content{
      margin-top:24px;
      color:#edf2e8;
      font-size:1.02rem;
      line-height:1.95;
      max-width:860px;
    }
    .article-content > *:first-child{margin-top:0}
    .article-content > *:last-child{margin-bottom:0}
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:#fff;
      font-weight:800;
      line-height:1.28;
      letter-spacing:-.02em;
      margin:1.8em 0 .75em;
    }
    .article-content h2{font-size:1.55rem}
    .article-content h3{font-size:1.25rem}
    .article-content p{margin:0 0 1.1em;color:#e7ece1}
    .article-content ul,
    .article-content ol{
      padding-left:1.25rem;
      margin:0 0 1.25em;
      color:#e7ece1;
    }
    .article-content li{margin:.45em 0}
    .article-content a{
      color:var(--brand-2);
      text-decoration:underline;
      text-decoration-color:rgba(209,226,111,.35);
      text-underline-offset:3px;
    }
    .article-content a:hover{
      color:#fff;
      text-decoration-color:rgba(255,157,59,.75);
    }
    .article-content blockquote{
      margin:1.4em 0;
      padding:18px 18px 18px 20px;
      border-left:3px solid rgba(255,157,59,.75);
      background:rgba(255,157,59,.06);
      border-radius:0 16px 16px 0;
      color:#f4f7ef;
    }
    .article-content hr{
      margin:1.8em 0;
      border-color:rgba(214,226,208,.12);
      opacity:1;
    }
    .article-content img{
      margin:1.4em 0;
      border-radius:18px;
      border:1px solid var(--border);
      box-shadow:0 14px 30px rgba(0,0,0,.22);
    }
    .article-content figure{
      margin:1.4em 0;
    }
    .article-content figcaption{
      margin-top:.6rem;
      color:var(--muted);
      font-size:.92rem;
      text-align:center;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:1.4em 0;
      overflow:hidden;
      border-radius:16px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
    }
    .article-content th,
    .article-content td{
      padding:12px 14px;
      border-bottom:1px solid var(--border);
      border-right:1px solid var(--border);
      text-align:left;
      vertical-align:top;
    }
    .article-content th:last-child,
    .article-content td:last-child{border-right:none}
    .article-content tr:last-child td{border-bottom:none}
    .article-content code{
      color:#ffd59e;
      background:rgba(255,157,59,.09);
      padding:.14rem .4rem;
      border-radius:8px;
      border:1px solid rgba(255,157,59,.16);
    }
    .article-content pre{
      margin:1.4em 0;
      padding:18px;
      border-radius:16px;
      border:1px solid var(--border);
      background:#0b0f0a;
      color:#dfe6d6;
      overflow:auto;
    }
    .article-content pre code{
      background:none;
      border:none;
      padding:0;
      color:inherit;
    }

    .article-tail{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid var(--border);
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:14px;
    }
    .tail-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tail-actions{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }

    .article-aside{
      display:grid;
      gap:16px;
      position:sticky;
      top:96px;
    }
    .sticky-card{
      padding:20px;
    }
    .aside-title{
      margin:0 0 12px;
      font-size:1.08rem;
      line-height:1.2;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .info-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .info-list li{
      display:flex;
      justify-content:space-between;
      gap:10px;
      padding:11px 12px;
      border-radius:12px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--muted);
      font-size:.95rem;
    }
    .info-list li strong{
      color:var(--text);
      font-weight:700;
      text-align:right;
      max-width:60%;
      word-break:break-all;
    }
    .side-links{
      display:grid;
      gap:10px;
    }
    .side-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      min-height:52px;
      padding:12px 14px;
      border-radius:14px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.02);
      color:var(--text);
      font-weight:600;
    }
    .side-links a span{color:var(--muted)}
    .side-links a:hover{
      border-color:rgba(167,196,90,.45);
      background:rgba(255,255,255,.04);
      transform:translateY(-1px);
    }
    .read-tip{
      color:var(--muted);
      font-size:.95rem;
      margin:0;
    }

    .related-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:16px;
      margin-top:18px;
    }
    .mini-card{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:14px;
      padding:20px;
      min-height:182px;
    }
    .mini-card h3{
      margin:0;
      font-size:1.08rem;
      line-height:1.34;
      font-weight:800;
    }
    .mini-card p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
    }
    .mini-card .mini-foot{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.9rem;
    }

    .faq-wrap .accordion{
      --bs-accordion-bg: transparent;
      --bs-accordion-border-color: transparent;
      --bs-accordion-btn-padding-x: 0;
      --bs-accordion-btn-padding-y: 0;
      --bs-accordion-btn-focus-border-color: transparent;
      --bs-accordion-btn-focus-box-shadow: none;
      --bs-accordion-active-bg: transparent;
      --bs-accordion-active-color: var(--text);
      --bs-accordion-color: var(--text);
    }
    .faq-wrap .accordion-item{
      background:var(--surface);
      border:1px solid var(--border);
      border-radius:16px;
      overflow:hidden;
      box-shadow:var(--shadow);
      margin-bottom:12px;
    }
    .faq-wrap .accordion-button{
      padding:18px 18px;
      background:transparent;
      color:var(--text);
      font-weight:700;
      line-height:1.35;
      box-shadow:none!important;
    }
    .faq-wrap .accordion-button::after{
      filter:brightness(0) invert(1);
      opacity:.8;
    }
    .faq-wrap .accordion-button:not(.collapsed){
      color:#fff;
      background:rgba(255,255,255,.02);
    }
    .faq-wrap .accordion-body{
      padding:0 18px 18px;
      color:var(--muted);
      line-height:1.85;
    }

    .cta-strip{
      padding:22px;
      background:
        radial-gradient(circle at 14% 18%, rgba(167,196,90,.12), transparent 25%),
        radial-gradient(circle at 88% 12%, rgba(255,157,59,.14), transparent 20%),
        linear-gradient(180deg, rgba(22,26,21,.98), rgba(14,17,12,.98));
    }
    .cta-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }
    .cta-text{
      max-width:70ch;
    }
    .cta-text .section-title{margin-bottom:10px}
    .cta-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }

    .empty-state{
      padding:36px 24px;
      text-align:center;
      max-width:720px;
      margin:0 auto;
    }
    .empty-state h2{
      margin:12px 0 10px;
      font-size:clamp(1.5rem,2.8vw,2rem);
      font-weight:800;
    }
    .empty-state p{
      margin:0 auto 20px;
      max-width:60ch;
      color:var(--muted);
    }

    .site-footer{
      margin-top:30px;
      padding:34px 0 18px;
      border-top:1px solid var(--border);
      background:linear-gradient(180deg, rgba(11,12,9,.2), rgba(9,10,8,.95));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr;
      gap:24px;
      padding-bottom:22px;
    }
    .footer-brand p{
      margin:14px 0 0;
      color:var(--muted);
      max-width:42ch;
      line-height:1.8;
      font-size:.96rem;
    }
    .footer-title{
      color:var(--text);
      font-weight:800;
      margin-bottom:14px;
      letter-spacing:.01em;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      width:max-content;
    }
    .footer-links a:hover{
      color:var(--brand-2);
      transform:translateX(2px);
    }
    .footer-meta{
      display:grid;
      gap:10px;
      color:var(--muted);
      font-size:.95rem;
      line-height:1.7;
    }
    .footer-bottom{
      padding-top:16px;
      border-top:1px solid var(--border);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:var(--muted-2);
      font-size:.92rem;
      flex-wrap:wrap;
    }

    .fade-up{
      animation:fadeUp .45s ease both;
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(6px)}
      to{opacity:1;transform:translateY(0)}
    }
    @media (hover:hover){
      .panel,.btn-ui,.nav-links a,.mobile-menu a,.side-links a,.mini-card,.footer-links a{
        transition:transform var(--t), box-shadow var(--t), border-color var(--t), background-color var(--t), color var(--t), opacity var(--t);
      }
      .mini-card:hover,
      .cta-strip:hover,
      .article-card:hover,
      .sticky-card:hover{
        transform:translateY(-2px);
      }
    }

    @media (max-width: 1199.98px){
      .top-grid,
      .article-layout{
        grid-template-columns:1fr;
      }
      .article-aside{
        position:static;
      }
      .related-grid{
        grid-template-columns:repeat(2, minmax(0,1fr));
      }
      .footer-grid{
        grid-template-columns:1.2fr 1fr 1fr;
      }
    }
    @media (max-width: 991.98px){
      .nav-links{display:none}
      .header-actions .btn-ui{display:none}
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .footer-grid > :first-child{
        grid-column:1 / -1;
      }
    }
    @media (max-width: 767.98px){
      .nav-shell{min-height:72px}
      .brand-text span{display:none}
      .tdk-panel,.visual-card,.article-card,.sticky-card,.cta-strip{padding:18px}
      .article-card h1{font-size:clamp(1.55rem,7vw,2.2rem)}
      .related-grid{
        grid-template-columns:1fr;
      }
      .visual-stats{
        grid-template-columns:1fr;
      }
      .mobile-cta{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr;
      }
      .footer-bottom{
        flex-direction:column;
        align-items:flex-start;
      }
      .cta-inner{
        align-items:stretch;
      }
      .cta-actions .btn-ui{
        width:100%;
      }
      .btn-ui{
        width:auto;
      }
    }
    @media (max-width: 575.98px){
      .container{padding-left:14px!important;padding-right:14px!important}
      .section-gap{padding:18px 0}
      .tdk-title{font-size:1.55rem}
      .article-top{padding-top:16px}
      .breadcrumb-shell{
        padding:10px 12px;
        gap:8px;
      }
      .article-meta-row{
        gap:8px 10px;
      }
      .article-meta-row .btn-ui{
        width:100%;
      }
      .info-list li{
        flex-direction:column;
        align-items:flex-start;
      }
      .info-list li strong{
        max-width:100%;
        text-align:left;
      }
      .btn-ui{height:44px}
      .menu-toggle{width:44px;height:44px}
    }

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