:root{
      --bg: #fbfaf7;
      --surface: #ffffff;
      --text: #1f2937;
      --muted: #6b7280;
      --muted2:#7b5f6a;
      --line: rgba(20, 24, 36, .10);
      --shadow: 0 14px 40px rgba(17, 24, 39, .10);
      --shadow2: 0 10px 26px rgba(17, 24, 39, .08);
      --radius: 18px;

      --accent: #e11d48;      /* 玫红 */
      --accent2: #7c3aed;     /* 紫 */
      --accent3: #0ea5e9;     /* 天蓝 */
      --accent4: #f97316;     /* 橙 */
      --good: #16a34a;

      --btn: #111827;
      --btnText: #fff;

      --container: 1120px;
      --gutter: 18px;

      --focus: 0 0 0 4px rgba(124, 58, 237, .18);
    }

    *{ box-sizing: border-box; }
    html, body{ height: 100%; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, "Apple Color Emoji","Segoe UI Emoji";
      color: var(--text);
      background:
        radial-gradient(900px 380px at 12% 0%, rgba(225, 29, 72, .10), transparent 55%),
        radial-gradient(820px 320px at 88% 6%, rgba(124, 58, 237, .10), transparent 52%),
        radial-gradient(900px 380px at 50% 92%, rgba(14, 165, 233, .10), transparent 55%),
        linear-gradient(#fbfaf7, #fbfaf7);
    }

    .container{
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 var(--gutter);
    }

    .skip-link{
      position:absolute;
      top:-48px;
      left: 10px;
      background:#111827;
      color:#fff;
      padding:10px 12px;
      border-radius: 12px;
      z-index: 1000;
      transition: top .2s ease;
      text-decoration:none;
      font-weight:700;
      font-size: 13px;
    }
    .skip-link:focus{ top: 10px; outline:none; box-shadow: var(--focus); }

    .topbar{
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(251, 250, 247, .78);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid rgba(20,24,36,.08);
    }
    .nav-container{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 12px;
      padding-bottom: 12px;
    }

    .brand{
      display:flex;
      align-items:center;
      gap: 12px;
      min-width: 280px;
    }
    .brand-link{
      display:flex;
      align-items:center;
      justify-content:center;
      width: 54px;
      height: 54px;
      border-radius: 16px;
      background:
        radial-gradient(120% 120% at 10% 10%, rgba(225,29,72,.18), transparent 55%),
        radial-gradient(120% 120% at 90% 10%, rgba(124,58,237,.18), transparent 55%),
        linear-gradient(#fff, #fff);
      box-shadow: 0 8px 22px rgba(17,24,39,.08);
      border: 1px solid rgba(20,24,36,.08);
      overflow:hidden;
      text-decoration:none;
    }
    .brand-link img{ display:block; width: 48px; height: auto; }
    .brand-text{ line-height: 1.1; }
    .brand-name{ font-weight: 900; letter-spacing: .2px; }
    .brand-sub{ font-size: 12px; color: var(--muted); margin-top: 4px; max-width: 260px; white-space: nowrap; overflow:hidden; text-overflow: ellipsis; }

    .nav-desktop{
      display:flex;
      align-items:center;
      gap: 16px;
      flex-wrap: wrap;
      justify-content:center;
    }
    .nav-item{
      text-decoration:none;
      font-weight: 650;
      color: rgba(17,24,39,.86);
      font-size: 14px;
      padding: 8px 10px;
      border-radius: 12px;
      transition: background .2s ease, transform .2s ease;
    }
    .nav-item:hover{
      background: rgba(17,24,39,.06);
      transform: translateY(-1px);
    }

    .nav-right{
      display:flex;
      align-items:center;
      gap: 10px;
    }
    .icon-btn{
      border: 1px solid rgba(20,24,36,.12);
      background: rgba(255,255,255,.78);
      border-radius: 14px;
      height: 44px;
      width: 44px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
    }
    .icon-btn:focus{ outline:none; box-shadow: var(--focus); }
    .icon-btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.95); }

    .burger{
      width: 18px;
      height: 2px;
      background: #111827;
      position: relative;
      border-radius: 999px;
      display:block;
    }
    .burger:before,.burger:after{
      content:"";
      position:absolute;
      left:0;
      width: 18px;
      height: 2px;
      background: #111827;
      border-radius: 999px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .burger:before{ top: -6px; }
    .burger:after{ top: 6px; }

    .burger-close{
      background: transparent;
    }
    .burger-close:before{ top:0; transform: rotate(45deg); }
    .burger-close:after{ top:0; transform: rotate(-45deg); }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap: 10px;
      padding: 11px 14px;
      border-radius: 14px;
      border: 1px solid rgba(20,24,36,.10);
      text-decoration:none;
      cursor:pointer;
      font-weight: 760;
      font-size: 14px;
      transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      line-height: 1;
      user-select: none;
      white-space: nowrap;
    }
    .btn:focus{ outline:none; box-shadow: var(--focus); }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 12px 26px rgba(17,24,39,.12); }

    .btn-primary{
      background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 55%, var(--accent3) 120%);
      border-color: rgba(0,0,0,.08);
      color: var(--btnText);
      box-shadow: 0 16px 30px rgba(225,29,72,.18);
    }
    .btn-primary:hover{ box-shadow: 0 20px 40px rgba(225,29,72,.25); }

    .btn-secondary{
      background: rgba(17,24,39,.06);
      color: #111827;
      border-color: rgba(17,24,39,.12);
    }
    .btn-secondary:hover{ background: rgba(17,24,39,.09); }

    .btn-ghost{
      background: rgba(255,255,255,.72);
      color: #111827;
      border-color: rgba(17,24,39,.14);
    }

    .btn-soft{
      background: rgba(124,58,237,.10);
      color: #2a1a5b;
      border-color: rgba(124,58,237,.18);
    }

    .btn-wide{ width: 100%; }
    .btn-row{ display:flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; }
    .mt{ margin-top: 12px; }

    /* Hero */
    .hero{
      position: relative;
      overflow: hidden;
      padding: 44px 0 36px;
      background:
        radial-gradient(900px 500px at 10% 10%, rgba(225,29,72,.14), transparent 58%),
        radial-gradient(900px 520px at 92% 5%, rgba(124,58,237,.14), transparent 55%),
        radial-gradient(900px 520px at 50% 100%, rgba(14,165,233,.10), transparent 58%),
        linear-gradient(#fbfaf7, #fbfaf7);
    }
    .hero-bg{ position:absolute; inset:0; pointer-events:none; }
    .bg-spark{
      position:absolute;
      width: 520px;
      height: 520px;
      left: -190px;
      top: -220px;
      background: radial-gradient(circle at 30% 30%, rgba(225,29,72,.40), rgba(225,29,72,.00) 60%);
      filter: blur(2px);
      opacity: .6;
      transform: rotate(12deg);
    }
    .bg-ring{
      position:absolute;
      border-radius: 999px;
      border: 1px solid rgba(124,58,237,.22);
      box-shadow: inset 0 0 0 1px rgba(225,29,72,.12);
      opacity: .85;
      animation: floatRing 7s ease-in-out infinite;
      transform-origin: center;
    }
    .ring-1{ width: 520px; height: 520px; right: -240px; top: 40px; animation-duration: 8.5s; }
    .ring-2{ width: 380px; height: 380px; right: -120px; top: 240px; border-color: rgba(14,165,233,.24); animation-duration: 6.6s; opacity:.75; }
    @keyframes floatRing{
      0%,100%{ transform: translateY(0) scale(1); }
      50%{ transform: translateY(-10px) scale(1.02); }
    }

    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .95fr;
      gap: 22px;
      align-items: start;
      position: relative;
      z-index: 2;
    }

    .pill-row{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 16px;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      padding: 7px 10px;
      border-radius: 999px;
      font-weight: 760;
      font-size: 12px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      color: rgba(17,24,39,.86);
    }
    .pill-accent{
      border-color: rgba(225,29,72,.20);
      background: linear-gradient(180deg, rgba(225,29,72,.14), rgba(255,255,255,.7));
      color: #9f1239;
    }

    .hero-title{
      margin: 0 0 12px;
      font-size: clamp(28px, 3.4vw, 44px);
      letter-spacing: -0.02em;
      line-height: 1.08;
      font-weight: 980;
    }
    .hero-lead{
      margin: 0;
      color: rgba(17,24,39,.78);
      font-size: 16px;
      line-height: 1.7;
      max-width: 62ch;
    }

    .hero-actions{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 18px;
      align-items:center;
    }
    .hero-meta{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 18px;
    }
    .meta-item{
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 10px 24px rgba(17,24,39,.06);
    }
    .meta-k{
      font-size: 12px;
      color: var(--muted);
      font-weight: 800;
      letter-spacing: .02em;
    }
    .meta-v{
      margin-top: 6px;
      font-size: 13px;
      font-weight: 740;
      color: rgba(17,24,39,.86);
      line-height: 1.4;
    }

    .hero-side{
      display:flex;
      flex-direction: column;
      gap: 14px;
    }
    .side-card{
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: var(--shadow2);
      padding: 16px;
      position: relative;
      overflow:hidden;
      transform: translateZ(0);
    }
    .side-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(420px 160px at 18% 0%, rgba(225,29,72,.14), transparent 60%),
        radial-gradient(420px 160px at 78% 0%, rgba(124,58,237,.14), transparent 58%);
      pointer-events:none;
      opacity:.8;
    }
    .side-card > *{ position: relative; z-index: 1; }

    .side-top{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .side-title{ font-weight: 920; letter-spacing: .01em; }
    .side-badge{
      font-weight: 860;
      font-size: 12px;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(225,29,72,.18);
      background: rgba(225,29,72,.10);
      color: #9f1239;
      white-space: nowrap;
    }
    .side-badge-warn{
      border-color: rgba(249,115,22,.24);
      background: rgba(249,115,22,.12);
      color: #9a3412;
    }

    .side-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 6px;
    }
    .stat{
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
    }
    .stat-num{
      font-weight: 980;
      font-size: 20px;
      letter-spacing: -0.02em;
    }
    .stat-label{
      margin-top: 6px;
      color: rgba(17,24,39,.70);
      font-weight: 730;
      font-size: 12.5px;
      line-height: 1.35;
    }
    .side-foot{
      display:flex;
      gap: 10px;
      align-items:center;
      margin-top: 14px;
      flex-wrap: wrap;
    }
    .dot{
      width: 6px; height: 6px; border-radius: 50%;
      background: rgba(17,24,39,.25);
      display:inline-block;
    }
    .link-inline{
      color: rgba(17,24,39,.86);
      font-weight: 820;
      text-decoration: none;
      border-bottom: 1px dashed rgba(17,24,39,.26);
      transition: color .2s ease, border-color .2s ease;
    }
    .link-inline:hover{ color: rgba(225,29,72,.98); border-bottom-color: rgba(225,29,72,.55); }

    .tag-grid{ display:flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
    .tag{
      display:inline-flex;
      align-items:center;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.72);
      font-size: 12.5px;
      font-weight: 800;
      color: rgba(17,24,39,.86);
    }
    .tag-dark{
      background: rgba(17,24,39,.06);
      border-color: rgba(17,24,39,.14);
      color: rgba(17,24,39,.86);
    }

    /* Sections */
    .section{ padding: 54px 0; }
    .section-compact{ padding: 44px 0; }
    .section-alt{
      background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.0));
    }

    .section-head{
      display:flex;
      flex-direction: column;
      gap: 10px;
      margin-bottom: 18px;
    }
    .h2{
      margin:0;
      font-size: clamp(22px, 2.2vw, 30px);
      letter-spacing: -0.015em;
      font-weight: 980;
    }
    .subtext{
      margin:0;
      color: rgba(17,24,39,.74);
      font-weight: 720;
      line-height: 1.6;
      max-width: 74ch;
    }

    .in-view{ animation: popIn .65s ease both; }
    @keyframes popIn{
      from{ opacity: 0; transform: translateY(10px); }
      to{ opacity: 1; transform: translateY(0); }
    }

    /* Cards */
    .card{
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 30px rgba(17,24,39,.06);
      padding: 18px;
      position: relative;
      overflow:hidden;
      transform: translateZ(0);
    }
    .card:hover{ box-shadow: 0 18px 46px rgba(17,24,39,.10); }
    .feature-card:before, .service-card:before, .case-card:before, .solution-card:before, .training-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(460px 200px at 15% 0%, rgba(225,29,72,.10), transparent 60%),
        radial-gradient(460px 200px at 85% 0%, rgba(124,58,237,.10), transparent 58%);
      pointer-events:none;
      opacity: 0;
      transition: opacity .25s ease;
    }
    .feature-card:hover:before, .service-card:hover:before, .case-card:hover:before, .solution-card:hover:before, .training-card:hover:before{ opacity: 1; }
    .card > *{ position: relative; z-index: 1; }

    .feature-2col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items: stretch;
    }

    .feature-card-contrast{
      background:
        radial-gradient(900px 420px at 10% 0%, rgba(225,29,72,.15), transparent 52%),
        radial-gradient(760px 320px at 100% 10%, rgba(124,58,237,.16), transparent 50%),
        rgba(255,255,255,.78);
      border-color: rgba(225,29,72,.14);
    }

    .feature-icon{
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display:flex;
      align-items:center;
      justify-content:center;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.68);
      color: rgba(17,24,39,.9);
      box-shadow: 0 10px 22px rgba(17,24,39,.06);
      margin-bottom: 12px;
    }

    .h3{
      margin: 0 0 8px;
      font-size: 18px;
      font-weight: 920;
      letter-spacing: -0.01em;
    }
    .p{
      margin: 0;
      color: rgba(17,24,39,.74);
      line-height: 1.75;
      font-weight: 650;
    }

    .ul{
      margin: 14px 0 0;
      padding: 0;
      list-style:none;
      display:flex;
      flex-direction: column;
      gap: 10px;
    }
    .ul.compact{ gap: 8px; }
    .ul li{
      padding-left: 18px;
      position: relative;
      color: rgba(17,24,39,.78);
      font-weight: 700;
      line-height: 1.45;
      font-size: 14px;
    }
    .ul li:before{
      content:"";
      position:absolute;
      left:0; top: .62em;
      width: 9px; height: 2px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--accent), var(--accent2));
      transform: translateY(-50%);
    }

    .quote{
      display:flex;
      gap: 10px;
      align-items:flex-start;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(17,24,39,.04);
      border: 1px solid rgba(17,24,39,.10);
      margin-top: 14px;
    }
    .quote-mark{
      font-size: 30px;
      line-height: 1;
      color: rgba(225,29,72,.85);
      font-weight: 900;
      margin-top: 2px;
    }
    .quote-text{
      color: rgba(17,24,39,.78);
      font-weight: 740;
      line-height: 1.6;
    }

    .mini-cta-row{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-top: 14px;
    }

    /* Grid helpers */
    .grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .grid-4{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

    .service-card{
      padding: 18px;
    }
    .service-head{
      display:flex;
      align-items:center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .service-dot{
      width: 14px; height: 14px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 10px 18px rgba(225,29,72,.22);
    }
    .dot-a{ background: var(--accent); }
    .dot-b{ background: var(--accent2); box-shadow: 0 10px 18px rgba(124,58,237,.22); }
    .dot-c{ background: var(--accent3); box-shadow: 0 10px 18px rgba(14,165,233,.22); }

    .service-list{ display:flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
    .chip{
      display:inline-flex;
      align-items:center;
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.7);
      font-size: 12.5px;
      font-weight: 820;
      color: rgba(17,24,39,.86);
    }

    .models-strip{
      margin-top: 14px;
      padding: 16px;
      display:flex;
      align-items: flex-start;
      gap: 14px;
    }
    .models-left{ min-width: 220px; }
    .models-title{ font-weight: 980; letter-spacing: -.01em; }
    .models-sub{ margin-top: 6px; color: rgba(17,24,39,.72); font-weight: 700; line-height: 1.5; font-size: 13.5px; }
    .models-tags{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items:flex-start;
    }

    /* One-stop cards */
    .mini-card{
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 16px;
      position: relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .25s ease;
    }
    .mini-card:hover{ transform: translateY(-2px); box-shadow: 0 18px 50px rgba(17,24,39,.10); }
    .mini-top{
      display:flex; align-items:center; justify-content: space-between;
      margin-bottom: 10px;
    }
    .mini-num{
      font-weight: 980;
      color: rgba(17,24,39,.72);
      font-size: 13px;
      letter-spacing: .06em;
    }
    .mini-icon{
      width: 34px; height: 34px;
      border-radius: 14px;
      display:flex;
      align-items:center; justify-content:center;
      background: rgba(17,24,39,.05);
      border: 1px solid rgba(17,24,39,.10);
      font-weight: 900;
    }
    .mini-title{
      font-weight: 950;
      font-size: 16px;
      margin-bottom: 8px;
      letter-spacing: -0.01em;
    }
    .mini-text{
      color: rgba(17,24,39,.74);
      font-weight: 700;
      line-height: 1.6;
      font-size: 13.5px;
    }

    /* Callout */
    .callout{
      margin-top: 16px;
      padding: 18px;
      border-radius: var(--radius);
      background:
        radial-gradient(620px 240px at 12% 0%, rgba(225,29,72,.14), transparent 60%),
        radial-gradient(620px 240px at 92% 10%, rgba(124,58,237,.16), transparent 58%),
        rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 16px;
    }
    .callout-left{ max-width: 70ch; }
    .callout-kicker{
      font-weight: 900;
      font-size: 12px;
      letter-spacing: .14em;
      color: rgba(17,24,39,.58);
      text-transform: uppercase;
    }
    .callout-title{
      font-weight: 990;
      margin-top: 6px;
      font-size: 20px;
      letter-spacing: -0.01em;
    }
    .callout-desc{
      margin-top: 8px;
      color: rgba(17,24,39,.72);
      font-weight: 700;
      line-height: 1.65;
    }
    .callout-right{
      display:flex;
      gap: 12px;
      flex-wrap: wrap;
      justify-content:flex-end;
      min-width: 260px;
    }

    /* Network */
    .network-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      align-items: stretch;
    }
    .network-card{
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 16px;
    }
    .network-card-mid{
      background:
        radial-gradient(520px 220px at 20% 0%, rgba(124,58,237,.16), transparent 58%),
        rgba(255,255,255,.78);
      border-color: rgba(124,58,237,.18);
    }
    .network-top{ display:flex; align-items:center; justify-content: space-between; margin-bottom: 12px; }
    .network-icon{
      width: 44px; height: 44px;
      border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(17,24,39,.05);
      border: 1px solid rgba(17,24,39,.10);
      font-size: 18px;
    }
    .network-title{ font-weight: 980; letter-spacing: -.01em; }

    /* Steps */
    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .step{
      padding: 16px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      position: relative;
      overflow:hidden;
    }
    .step:after{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(420px 160px at 0% 0%, rgba(225,29,72,.10), transparent 55%),
        radial-gradient(420px 160px at 100% 10%, rgba(14,165,233,.10), transparent 55%);
      opacity:.75;
      pointer-events:none;
    }
    .step > *{ position: relative; z-index: 1; }
    .step-no{
      font-weight: 950;
      font-size: 12px;
      letter-spacing: .12em;
      color: rgba(17,24,39,.56);
      text-transform: uppercase;
    }
    .step-title{
      margin-top: 8px;
      font-weight: 980;
      font-size: 17px;
      letter-spacing: -0.01em;
    }
    .step-text{
      margin-top: 8px;
      color: rgba(17,24,39,.72);
      font-weight: 700;
      line-height: 1.65;
      font-size: 13.5px;
    }

    .process-cta{
      margin-top: 16px;
      padding: 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(760px 240px at 20% 0%, rgba(225,29,72,.14), transparent 58%),
        rgba(255,255,255,.78);
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 14px;
    }
    .process-cta-title{
      font-weight: 990;
      font-size: 18px;
      letter-spacing: -0.01em;
    }
    .process-cta-desc{
      margin-top: 6px;
      color: rgba(17,24,39,.72);
      font-weight: 720;
      line-height: 1.6;
      font-size: 13.5px;
    }
    .process-cta-right{ display:flex; gap: 12px; flex-wrap: wrap; justify-content:flex-end; }

    /* Comparison */
    .compare-top{
      display:grid;
      grid-template-columns: 420px 1fr;
      gap: 14px;
      align-items: start;
      margin-bottom: 14px;
    }
    .rating-card{
      border-radius: var(--radius);
      background:
        radial-gradient(700px 260px at 20% 0%, rgba(225,29,72,.18), transparent 60%),
        radial-gradient(580px 240px at 100% 10%, rgba(124,58,237,.18), transparent 58%),
        rgba(255,255,255,.82);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: var(--shadow2);
      padding: 18px;
    }
    .rating-phrase{
      font-weight: 920;
      color: rgba(17,24,39,.70);
      letter-spacing: .02em;
    }
    .rating-stars{
      margin-top: 10px;
      display:flex;
      gap: 6px;
      font-size: 22px;
      color: rgba(225,29,72,.95);
    }
    .star{ filter: drop-shadow(0 10px 18px rgba(225,29,72,.20)); }
    .rating-score{
      margin-top: 12px;
      display:flex;
      align-items: baseline;
      gap: 8px;
    }
    .score-num{
      font-weight: 1000;
      font-size: 38px;
      letter-spacing: -0.03em;
      color: #111827;
    }
    .score-unit{
      font-weight: 900;
      color: rgba(17,24,39,.62);
      font-size: 14px;
      letter-spacing: .02em;
    }
    .rating-note{
      margin-top: 10px;
      color: rgba(17,24,39,.70);
      font-weight: 700;
      line-height: 1.6;
      font-size: 13.5px;
    }

    .compare-actions{
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 28px rgba(17,24,39,.06);
      padding: 16px;
      display:flex;
      flex-direction: column;
      gap: 12px;
      justify-content: space-between;
    }
    .compare-quick-title{ font-weight: 980; font-size: 16px; }
    .compare-btn-row{ display:flex; gap: 12px; flex-wrap: wrap; justify-content:flex-start; }

    .table-wrap{
      margin-top: 12px;
      padding: 12px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.62);
      border: 1px solid rgba(17,24,39,.10);
    }
    .table-scroll{ overflow:auto; border-radius: 12px; }
    .compare-table{
      width: 100%;
      border-collapse: collapse;
      min-width: 760px;
      background: rgba(255,255,255,.9);
    }
    .compare-table th, .compare-table td{
      padding: 12px 12px;
      border-bottom: 1px solid rgba(17,24,39,.10);
      text-align:left;
      vertical-align: top;
    }
    .compare-table thead th{
      background: rgba(17,24,39,.05);
      font-weight: 980;
      color: rgba(17,24,39,.86);
      letter-spacing: -.01em;
    }
    .compare-table tbody td{
      color: rgba(17,24,39,.76);
      font-weight: 720;
      line-height: 1.55;
      font-size: 13.5px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      padding: 6px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.10);
      margin-right: 8px;
      margin-bottom: 6px;
      font-weight: 900;
      font-size: 12px;
      color: rgba(17,24,39,.86);
      background: rgba(255,255,255,.7);
    }
    .badge-good{
      border-color: rgba(22,163,74,.24);
      background: rgba(22,163,74,.12);
      color: #166534;
    }
    .badge-soft{
      border-color: rgba(124,58,237,.18);
      background: rgba(124,58,237,.10);
      color: #3b1a78;
    }

    .compare-foot{
      margin-top: 14px;
      padding: 16px;
      border-radius: var(--radius);
      background:
        radial-gradient(720px 240px at 10% 0%, rgba(14,165,233,.14), transparent 58%),
        radial-gradient(720px 240px at 92% 10%, rgba(225,29,72,.12), transparent 58%),
        rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
      display:flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
    }
    .compare-foot-title{ font-weight: 990; font-size: 18px; letter-spacing: -.01em; }
    .compare-foot-desc{ margin-top: 6px; color: rgba(17,24,39,.72); font-weight: 720; line-height: 1.65; font-size: 13.5px; }
    .compare-foot-right{ display:flex; gap: 12px; flex-wrap: wrap; justify-content:flex-end; }

    /* Match */
    .match-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      align-items: start;
    }
    .card-head{
      display:flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .card-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .card-note{ font-weight: 820; color: rgba(17,24,39,.58); font-size: 12.5px; }

    .form{ display:flex; flex-direction: column; gap: 12px; }
    .form-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .form-row.compact{ grid-template-columns: 1fr 1fr; gap: 12px; }
    .field{ display:flex; flex-direction: column; gap: 7px; }
    .label{
      font-weight: 860;
      font-size: 13px;
      color: rgba(17,24,39,.72);
    }
    input, select, textarea{
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.88);
      padding: 11px 12px;
      font-weight: 700;
      color: rgba(17,24,39,.90);
      font-size: 14px;
      transition: box-shadow .2s ease, border-color .2s ease, transform .12s ease;
      outline: none;
    }
    textarea{ resize: vertical; min-height: 110px; }
    input:focus, select:focus, textarea:focus{
      box-shadow: var(--focus);
      border-color: rgba(124,58,237,.32);
    }

    .form-foot{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 4px;
    }
    .form-privacy{
      color: rgba(17,24,39,.58);
      font-weight: 700;
      font-size: 12.5px;
      line-height: 1.5;
      max-width: 44ch;
    }

    .side-forms{ display:flex; flex-direction: column; gap: 14px; }
    .side-info-head{ margin-bottom: 10px; }
    .side-info-title{ font-weight: 990; font-size: 18px; letter-spacing: -.01em; }
    .side-info-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 740; font-size: 13px; }
    .list-check{
      display:flex;
      flex-direction: column;
      gap: 10px;
      margin-top: 6px;
    }
    .check-item{
      display:flex;
      align-items:flex-start;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
    }
    .check{
      width: 18px; height: 18px;
      border-radius: 7px;
      background: linear-gradient(135deg, rgba(225,29,72,.95), rgba(124,58,237,.95));
      box-shadow: 0 12px 24px rgba(225,29,72,.18);
      position: relative;
      flex: 0 0 auto;
      margin-top: 1px;
    }
    .check:after{
      content:"";
      position:absolute;
      left: 5px; top: 4px;
      width: 7px; height: 4px;
      border-left: 2px solid #fff;
      border-bottom: 2px solid #fff;
      transform: rotate(-45deg);
      border-radius: 1px;
    }
    .side-info-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-top: 12px; }

    .price-mini{
      background:
        radial-gradient(720px 240px at 10% 0%, rgba(124,58,237,.16), transparent 60%),
        rgba(255,255,255,.78);
    }
    .price-mini-head{ margin-bottom: 10px; }
    .price-mini-kicker{
      font-weight: 900;
      font-size: 12px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: rgba(17,24,39,.55);
    }
    .price-mini-title{ margin-top: 6px; font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .price-mini-desc{ color: rgba(17,24,39,.72); font-weight: 720; line-height: 1.7; font-size: 13.5px; }

    /* Price */
    .price-layout{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 14px;
      align-items: start;
    }
    .price-card{
      background:
        radial-gradient(780px 260px at 18% 0%, rgba(225,29,72,.14), transparent 58%),
        rgba(255,255,255,.80);
    }
    .price-card-head{
      display:flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 10px;
    }
    .price-card-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .price-card-note{ color: rgba(17,24,39,.58); font-weight: 820; font-size: 12.5px; }

    .price-form{ display:flex; flex-direction: column; gap: 12px; }
    .seg{ display:flex; flex-direction: column; gap: 7px; }
    .seg-label{ font-weight: 870; font-size: 13px; color: rgba(17,24,39,.72); }

    .result-row{
      display:flex;
      gap: 12px;
      align-items: flex-start;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      margin-top: 10px;
    }
    .result-k{
      font-weight: 980;
      color: rgba(17,24,39,.70);
      min-width: 84px;
      font-size: 13px;
    }
    .result-v{
      font-weight: 720;
      color: rgba(17,24,39,.78);
      line-height: 1.65;
      font-size: 13.5px;
    }
    .hint{ margin-top: 10px; font-weight: 720; font-size: 12.8px; line-height: 1.6; }

    .price-side{
      background:
        radial-gradient(760px 240px at 0% 0%, rgba(14,165,233,.14), transparent 58%),
        rgba(255,255,255,.78);
    }
    .price-side-head{ margin-bottom: 10px; }
    .price-side-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .price-side-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; line-height: 1.6; font-size: 13.5px; }
    .progress-list{ margin-top: 10px; display:flex; flex-direction: column; gap: 12px; }
    .progress-item{ padding: 12px 12px; border-radius: 14px; border: 1px solid rgba(17,24,39,.10); background: rgba(255,255,255,.74); }
    .progress-bar{
      height: 10px;
      border-radius: 999px;
      background: rgba(17,24,39,.08);
      overflow:hidden;
      margin-bottom: 10px;
    }
    .progress-bar span{
      display:block;
      height: 100%;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--accent), var(--accent2), var(--accent3));
      box-shadow: 0 14px 26px rgba(124,58,237,.18);
    }
    .progress-text{ font-weight: 840; color: rgba(17,24,39,.76); line-height: 1.5; font-size: 13.5px; }

    .side-cta{ display:flex; flex-direction: column; gap: 10px; margin-top: 14px; }

    /* Training */
    .training-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items: start;
    }
    .training-card-right{
      background:
        radial-gradient(820px 260px at 20% 0%, rgba(124,58,237,.14), transparent 58%),
        rgba(255,255,255,.78);
    }
    .training-head{
      display:flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .training-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .training-note{ color: rgba(17,24,39,.58); font-weight: 820; font-size: 12.5px; }

    .two-col-list{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .list-col{ display:flex; flex-direction: column; gap: 10px; }
    .li{
      display:flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      font-weight: 820;
      color: rgba(17,24,39,.78);
    }
    .li-dot{
      width: 12px; height: 12px;
      border-radius: 5px;
      background: linear-gradient(135deg, rgba(225,29,72,.95), rgba(124,58,237,.95));
      box-shadow: 0 12px 24px rgba(225,29,72,.16);
      flex: 0 0 auto;
    }
    .muted-li{ background: rgba(17,24,39,.03); color: rgba(17,24,39,.68); }
    .training-cta-row{
      display:flex; gap: 12px; flex-wrap: wrap; margin-top: 14px;
    }

    .review-mini{ display:flex; flex-direction: column; gap: 12px; margin-top: 8px; }
    .review-mini-item{ display:flex; gap: 12px; align-items:flex-start; }
    .avatar{
      width: 44px; height: 44px;
      border-radius: 16px;
      display:flex;
      align-items:center;
      justify-content:center;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      font-weight: 1000;
      box-shadow: 0 12px 26px rgba(17,24,39,.06);
    }
    .review-mini-title{ font-weight: 980; }
    .review-mini-text{ margin-top: 6px; color: rgba(17,24,39,.70); font-weight: 720; line-height: 1.55; font-size: 13.5px; }

    .timeline{ display:flex; flex-direction: column; gap: 12px; margin-top: 14px; }
    .titem{
      display:flex;
      gap: 12px;
      align-items:flex-start;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
    }
    .tno{
      width: 28px; height: 28px;
      border-radius: 12px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(225,29,72,.10);
      border: 1px solid rgba(225,29,72,.18);
      font-weight: 980;
      color: #9f1239;
      flex: 0 0 auto;
      margin-top: 2px;
    }
    .ttext{
      color: rgba(17,24,39,.78);
      font-weight: 760;
      line-height: 1.6;
      font-size: 13.5px;
    }
    .muted{ color: rgba(17,24,39,.62); }

    .side-mini-note{ margin-top: 10px; color: rgba(17,24,39,.58); font-weight: 720; line-height: 1.6; font-size: 12.8px; }

    /* Cases */
    .cases-grid{ margin-top: 8px; }
    .case-card{ display:flex; flex-direction: column; gap: 10px; }
    .case-top{ display:flex; align-items:center; gap: 10px; }
    .case-icon{
      width: 44px; height: 44px;
      border-radius: 16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(17,24,39,.05);
      border: 1px solid rgba(17,24,39,.10);
      font-size: 18px;
    }
    .case-title{ font-weight: 1000; letter-spacing: -.01em; }
    .case-desc{ color: rgba(17,24,39,.72); font-weight: 720; line-height: 1.65; font-size: 13.5px; }
    .case-meta{ display:flex; gap: 10px; flex-wrap: wrap; margin-top: 2px; }
    .case-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-top: auto; }

    .cases-logos{
      margin-top: 14px;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 14px;
    }
    .logos-title{ font-weight: 1000; }
    .logos-sub{ margin-top: 6px; color: rgba(17,24,39,.70); font-weight: 720; line-height: 1.6; }

    /* Articles */
    .articles-wrap{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items:start;
    }
    .article-card{ padding: 18px; }
    .article-head{
      display:flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .article-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }

    .article-list{ display:flex; flex-direction: column; gap: 10px; }
    .article-item{
      display:flex;
      align-items:flex-start;
      gap: 12px;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      transition: transform .16s ease, box-shadow .2s ease;
    }
    .article-item:hover{ transform: translateY(-1px); box-shadow: 0 16px 40px rgba(17,24,39,.10); }
    .article-bullet{
      width: 10px; height: 10px;
      border-radius: 5px;
      background: linear-gradient(135deg, var(--accent), var(--accent2));
      box-shadow: 0 12px 24px rgba(225,29,72,.16);
      flex: 0 0 auto;
      margin-top: 5px;
    }
    .article-link{
      text-decoration:none;
      color: rgba(17,24,39,.88);
      font-weight: 860;
      line-height: 1.5;
    }
    .article-link:hover{ color: rgba(225,29,72,.98); }

    .article-aside{ padding: 18px; background: rgba(255,255,255,.78); }
    .aside-head{ margin-bottom: 12px; }
    .aside-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .aside-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; line-height: 1.6; font-size: 13.5px; }

    .tag-cloud{ display:flex; flex-wrap: wrap; gap: 10px; }
    .tag-cloud-item{ background: rgba(124,58,237,.10); border-color: rgba(124,58,237,.18); color: #3b1a78; }

    .aside-divider{ height: 1px; background: rgba(17,24,39,.10); margin: 14px 0; }

    .aside-price-title{ font-weight: 980; font-size: 16px; }
    .aside-price-desc{ margin-top: 8px; color: rgba(17,24,39,.72); font-weight: 720; line-height: 1.65; font-size: 13.5px; margin-bottom: 12px; }

    /* Reviews */
    .reviews-grid{ margin-top: 8px; }
    .review-card{ padding: 18px; display:flex; flex-direction: column; gap: 10px; }
    .review-top{ display:flex; align-items:flex-start; gap: 12px; }
    .review-avatar{
      width: 48px; height: 48px;
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      display:flex; align-items:center; justify-content:center;
      font-weight: 1000;
      color: #111827;
      box-shadow: 0 12px 26px rgba(17,24,39,.06);
    }
    .review-name{ font-weight: 1000; }
    .review-role{ margin-top: 6px; font-size: 12.8px; font-weight: 750; }
    .review-text{
      margin: 0;
      color: rgba(17,24,39,.74);
      line-height: 1.75;
      font-weight: 720;
      font-size: 13.8px;
    }

    /* Help */
    .help-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .help-card{ padding: 18px; }
    .help-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; margin-bottom: 8px; }

    /* FAQ */
    .faq-grid{ display:grid; grid-template-columns: 1.15fr .85fr; gap: 14px; align-items:start; }
    .faq-list{ display:flex; flex-direction: column; gap: 10px; }
    .faq{
      border-radius: var(--radius);
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      box-shadow: 0 12px 28px rgba(17,24,39,.05);
      padding: 0;
      overflow:hidden;
    }
    .faq-summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 16px;
      font-weight: 950;
      letter-spacing: -.01em;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      user-select: none;
    }
    .faq-summary::-webkit-details-marker{ display:none; }
    .faq-icon{
      width: 28px; height: 28px;
      border-radius: 12px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(17,24,39,.04);
      position: relative;
      flex: 0 0 auto;
      transition: transform .2s ease, background .2s ease, border-color .2s ease;
    }
    .faq-icon:before, .faq-icon:after{
      content:"";
      position:absolute;
      left: 50%; top: 50%;
      transform: translate(-50%,-50%);
      background: rgba(17,24,39,.72);
      border-radius: 999px;
    }
    .faq-icon:before{ width: 12px; height: 2px; }
    .faq-icon:after{ width: 2px; height: 12px; transition: opacity .2s ease; }
    details[open] .faq-icon{ background: rgba(124,58,237,.10); border-color: rgba(124,58,237,.18); }
    details[open] .faq-icon:after{ opacity: 0; }

    .faq-body{
      padding: 0 16px 14px;
      color: rgba(17,24,39,.72);
      font-weight: 720;
      line-height: 1.75;
      font-size: 13.6px;
    }

    .faq-aside{ display:flex; flex-direction: column; gap: 14px; }
    .aside-cta{
      background:
        radial-gradient(760px 260px at 14% 0%, rgba(225,29,72,.16), transparent 58%),
        radial-gradient(760px 260px at 92% 10%, rgba(124,58,237,.14), transparent 58%),
        rgba(255,255,255,.78);
    }
    .aside-cta-head{ margin-bottom: 10px; }
    .aside-cta-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .aside-cta-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; line-height: 1.6; font-size: 13.5px; }
    .aside-cta-desc{
      color: rgba(17,24,39,.72);
      font-weight: 720;
      line-height: 1.75;
      font-size: 13.5px;
      margin-top: 10px;
    }
    .aside-cta-buttons{ display:flex; flex-direction: column; gap: 10px; margin-top: 12px; }

    .aside-links-title{ font-weight: 1000; font-size: 16px; letter-spacing: -.01em; margin-bottom: 12px; }
    .aside-link-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .aside-link{
      text-decoration:none;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      padding: 12px 12px;
      background: rgba(255,255,255,.74);
      font-weight: 850;
      color: rgba(17,24,39,.80);
      font-size: 13.5px;
      transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .aside-link:hover{ transform: translateY(-1px); box-shadow: 0 16px 40px rgba(17,24,39,.10); border-color: rgba(124,58,237,.22); color: rgba(59,26,120,.98); }

    /* AI百科 */
    .百科-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .book-card .book-k{
      font-weight: 900;
      font-size: 12px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: rgba(17,24,39,.55);
      margin-bottom: 10px;
    }
    .book-title{
      font-weight: 1000;
      font-size: 18px;
      letter-spacing: -.01em;
      line-height: 1.35;
      margin-bottom: 10px;
    }

    /* Contact */
    .contact-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items: start;
    }
    .contact-card{ padding: 18px; }
    .contact-head{ margin-bottom: 12px; }
    .contact-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .contact-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; font-size: 13.5px; }

    .contact-side{ display:flex; flex-direction: column; gap: 14px; }
    .contact-info{
      background:
        radial-gradient(760px 260px at 10% 0%, rgba(14,165,233,.12), transparent 58%),
        rgba(255,255,255,.78);
    }
    .contact-info-head{ margin-bottom: 12px; }
    .contact-info-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .contact-info-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; font-size: 13.5px; }

    .contact-lines{ display:flex; flex-direction: column; gap: 10px; margin-top: 8px; }
    .line{
      display:flex;
      align-items: baseline;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
    }
    .line-k{ font-weight: 920; color: rgba(17,24,39,.64); font-size: 13px; min-width: 84px; }
    .line-v{ font-weight: 800; color: rgba(17,24,39,.84); text-align: right; }

    .inline-link{
      text-decoration:none;
      color: rgba(225,29,72,.98);
      font-weight: 900;
      border-bottom: 1px dashed rgba(225,29,72,.45);
    }
    .inline-link:hover{ color: rgba(124,58,237,.98); }

    .qr-wrap{ margin-top: 14px; }
    .qr-title{ font-weight: 1000; font-size: 16px; letter-spacing: -.01em; margin-bottom: 10px; }
    .qr-img{
      width: 132px;
      height: auto;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.7);
      display:block;
      box-shadow: 0 18px 46px rgba(17,24,39,.12);
    }
    .modal-qr{ width: 160px; }
    .qr-note{ margin-top: 10px; color: rgba(17,24,39,.62); font-weight: 740; line-height: 1.6; font-size: 13px; }

    .contact-media .media-head{ margin-bottom: 12px; }
    .media-title{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .media-sub{ margin-top: 6px; color: rgba(17,24,39,.62); font-weight: 720; font-size: 13.5px; }
    .media-foot{ margin-top: 12px; }
    .ai-page-image{
      width: 100%;
      display:block;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.6);
      box-shadow: 0 18px 46px rgba(17,24,39,.10);
    }

    /* Join */
    .join-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items: start;
    }
    .join-card{
      background:
        radial-gradient(900px 280px at 10% 0%, rgba(225,29,72,.16), transparent 58%),
        radial-gradient(740px 260px at 90% 10%, rgba(124,58,237,.14), transparent 58%),
        rgba(255,255,255,.78);
    }
    .join-kicker{
      font-weight: 900;
      font-size: 12px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: rgba(17,24,39,.55);
      margin-bottom: 10px;
    }
    .join-title{
      font-weight: 1000;
      font-size: 22px;
      letter-spacing: -.02em;
      margin-bottom: 10px;
      line-height: 1.25;
    }
    .join-actions{ display:flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }

    .join-side{
      background:
        radial-gradient(760px 240px at 10% 0%, rgba(14,165,233,.12), transparent 58%),
        rgba(255,255,255,.78);
    }

    .mini-table{
      width: 100%;
      border-collapse: collapse;
      min-width: 720px;
      background: rgba(255,255,255,.92);
    }
    .mini-table th, .mini-table td{
      padding: 12px;
      border-bottom: 1px solid rgba(17,24,39,.10);
      text-align: left;
      vertical-align: top;
    }
    .mini-table thead th{
      background: rgba(17,24,39,.05);
      font-weight: 980;
      color: rgba(17,24,39,.86);
    }
    .mini-table tbody td{
      color: rgba(17,24,39,.76);
      font-weight: 720;
      line-height: 1.6;
      font-size: 13.5px;
    }
    .join-side-foot{ margin-top: 12px; }

    /* Friend links */
    .friend-links{ padding: 16px; }
    .friend-title{ font-weight: 1000; margin-bottom: 12px; }
    .friend-grid{ display:flex; flex-wrap: wrap; gap: 10px; }
    .friend-link{
      text-decoration:none;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      padding: 10px 12px;
      background: rgba(255,255,255,.74);
      color: rgba(17,24,39,.82);
      font-weight: 880;
      transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease, color .2s ease;
    }
    .friend-link:hover{ transform: translateY(-1px); box-shadow: 0 16px 40px rgba(17,24,39,.10); border-color: rgba(225,29,72,.20); color: rgba(225,29,72,.98); }

    /* Footer */
    .footer{
      background:
        radial-gradient(880px 320px at 10% 0%, rgba(225,29,72,.18), transparent 56%),
        radial-gradient(880px 320px at 90% 0%, rgba(124,58,237,.18), transparent 56%),
        linear-gradient(#111827, #0f172a);
      color: #e5e7eb;
      border-top: 1px solid rgba(255,255,255,.10);
      padding: 34px 0 18px;
      margin-top: 18px;
    }
    .footer-inner{
      display:flex;
      flex-direction: column;
      gap: 16px;
    }
    .footer-top{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }
    .footer-brand{
      display:flex;
      gap: 12px;
      align-items:flex-start;
      min-width: 320px;
    }
    .footer-logo{
      width: 56px; height: 56px;
      border-radius: 18px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.12);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 18px 46px rgba(0,0,0,.22);
      overflow:hidden;
      flex: 0 0 auto;
    }
    .footer-logo-img{ width: 44px; height: auto; display:block; }
    .footer-brand-name{ font-weight: 1000; font-size: 18px; letter-spacing: -.01em; }
    .footer-brand-sub{ margin-top: 6px; color: rgba(229,231,235,.78); font-weight: 720; line-height: 1.6; font-size: 13.5px; max-width: 42ch; }

    .footer-cols{
      display:flex;
      gap: 24px;
      flex-wrap: wrap;
      justify-content:flex-end;
      align-items:flex-start;
    }
    .footer-col{
      min-width: 180px;
    }
    .footer-col-title{
      font-weight: 980;
      color: rgba(255,255,255,.92);
      margin-bottom: 10px;
      letter-spacing: -.01em;
    }
    .footer-link{
      display:block;
      color: rgba(229,231,235,.82);
      text-decoration:none;
      font-weight: 780;
      margin: 9px 0;
      font-size: 14px;
    }
    .footer-link:hover{ color: #fff; text-decoration: underline; text-underline-offset: 3px; }

    .footer-text{
      color: rgba(229,231,235,.78);
      font-weight: 720;
      line-height: 1.6;
      font-size: 13.5px;
      margin: 9px 0;
    }

    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 10px;
      border-top: 1px solid rgba(255,255,255,.10);
      flex-wrap: wrap;
    }
    .copyright{
      color: rgba(229,231,235,.78);
      font-weight: 740;
      font-size: 13.5px;
    }
    .footer-legal{
      color: rgba(229,231,235,.78);
      font-weight: 760;
      font-size: 13.5px;
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .footer-mini-link{
      color: rgba(229,231,235,.82);
      text-decoration:none;
      font-weight: 820;
    }
    .footer-mini-link:hover{ color:#fff; text-decoration: underline; text-underline-offset: 3px; }
    .footer-dot{ opacity: .6; }

    /* Floating QR modal */
    .float-bar{
      position: fixed;
      right: 14px;
      bottom: 16px;
      z-index: 80;
      display:flex;
      gap: 10px;
      align-items:center;
      padding: 10px;
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.74);
      backdrop-filter: blur(10px);
      box-shadow: 0 22px 60px rgba(17,24,39,.18);
    }
    .float-item{
      display:flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 16px;
      text-decoration:none;
      color: rgba(17,24,39,.86);
      font-weight: 900;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease, background .2s ease;
      user-select: none;
      white-space: nowrap;
    }
    .float-item:hover{ transform: translateY(-2px); box-shadow: 0 18px 46px rgba(17,24,39,.12); background: rgba(255,255,255,.98); }
    .float-item:focus{ outline:none; box-shadow: var(--focus); }
    .float-ic{
      width: 30px; height: 30px;
      border-radius: 14px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(225,29,72,.10);
      border: 1px solid rgba(225,29,72,.18);
      flex: 0 0 auto;
    }
    .float-q .float-ic{
      background: rgba(124,58,237,.10);
      border-color: rgba(124,58,237,.18);
    }
    .float-txt{ font-size: 13.5px; }

    .qr-modal{
      position: fixed;
      inset: 0;
      z-index: 90;
      display:flex;
      align-items:center;
      justify-content:center;
      padding: 16px;
    }
    .qr-modal-bg{
      position:absolute; inset:0;
      background: rgba(0,0,0,.44);
    }
    .qr-modal-card{
      position: relative;
      width: min(420px, 92vw);
      border-radius: 22px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(255,255,255,.28);
      box-shadow: 0 40px 120px rgba(0,0,0,.28);
      overflow:hidden;
    }
    .qr-modal-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(620px 260px at 20% 0%, rgba(225,29,72,.16), transparent 58%),
        radial-gradient(620px 260px at 92% 10%, rgba(124,58,237,.14), transparent 58%);
      pointer-events:none;
      opacity: .95;
    }
    .qr-modal-card > *{ position: relative; z-index: 1; }
    .qr-modal-head{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      padding: 16px;
      border-bottom: 1px solid rgba(17,24,39,.10);
    }
    .qr-modal-title{ font-weight: 1000; font-size: 16px; letter-spacing: -.01em; }
    .qr-modal-body{
      padding: 18px 16px;
      display:flex;
      flex-direction: column;
      align-items:center;
      gap: 12px;
    }
    .qr-modal-note{
      color: rgba(17,24,39,.68);
      font-weight: 760;
      line-height: 1.6;
      font-size: 13.5px;
      text-align:center;
    }
    .qr-modal-foot{
      padding: 14px 16px 18px;
      border-top: 1px solid rgba(17,24,39,.10);
    }

    /* Responsive */
    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .hero-meta{ grid-template-columns: 1fr; }
      .compare-top{ grid-template-columns: 1fr; }
      .match-grid{ grid-template-columns: 1fr; }
      .price-layout{ grid-template-columns: 1fr; }
      .training-grid{ grid-template-columns: 1fr; }
      .contact-grid{ grid-template-columns: 1fr; }
      .join-grid{ grid-template-columns: 1fr; }
      .faq-grid{ grid-template-columns: 1fr; }
      .articles-wrap{ grid-template-columns: 1fr; }
      .feature-2col{ grid-template-columns: 1fr; }
      .grid-3{ grid-template-columns: 1fr; }
      .grid-4{ grid-template-columns: 1fr 1fr; }
      .steps{ grid-template-columns: 1fr 1fr; }
      .network-grid{ grid-template-columns: 1fr; }
      .help-grid{ grid-template-columns: 1fr; }
      .百科-grid{ grid-template-columns: 1fr; }
      .float-bar{ left: 14px; right: 14px; justify-content: space-between; }
      .friend-grid{ gap: 8px; }
    }

    @media (max-width: 860px){
      .nav-desktop{ display:none; }
    }

    @media (min-width: 861px){
      .mobile-menu{ display:none !important; }
    }

    .mobile-menu{
      position: fixed;
      inset: 0;
      z-index: 70;
      background: rgba(0,0,0,.34);
      display:flex;
      align-items:flex-start;
      justify-content:center;
      padding: 14px;
      animation: fadeIn .18s ease both;
    }
    @keyframes fadeIn{ from{ opacity: 0; } to{ opacity: 1; } }
    .mobile-menu-inner{
      width: min(520px, 100%);
      border-radius: 22px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(255,255,255,.28);
      box-shadow: 0 40px 120px rgba(0,0,0,.30);
      overflow:hidden;
    }
    .mobile-menu-inner:before{
      content:"";
      position:absolute;
      width: 520px; height: 260px;
      background:
        radial-gradient(420px 200px at 10% 0%, rgba(225,29,72,.18), transparent 58%),
        radial-gradient(420px 200px at 90% 10%, rgba(124,58,237,.16), transparent 58%);
      opacity: .9;
      pointer-events:none;
      transform: translate(-20px,-40px);
    }
    .mobile-menu-inner{ position: relative; }
    .mobile-menu-head{
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px 14px;
      border-bottom: 1px solid rgba(17,24,39,.10);
      position: relative;
      z-index: 1;
    }
    .mobile-title{ font-weight: 1000; letter-spacing: -.01em; }
    .mobile-links{
      padding: 12px 14px 14px;
      display:flex;
      flex-direction: column;
      gap: 6px;
      position: relative;
      z-index: 1;
    }
    .mobile-link{
      text-decoration:none;
      font-weight: 900;
      color: rgba(17,24,39,.86);
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.74);
      transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .mobile-link:hover{ transform: translateY(-1px); box-shadow: 0 16px 40px rgba(17,24,39,.10); border-color: rgba(124,58,237,.20); color: rgba(59,26,120,.98); }
    .mobile-ctas{
      padding: 0 14px 14px;
      display:flex;
      flex-direction: column;
      gap: 10px;
      position: relative;
      z-index: 1;
    }

    /* Reduce motion */
    @media (prefers-reduced-motion: reduce){
      .bg-ring{ animation: none; }
      .in-view{ animation: none; opacity: 1; transform: none; }
      .btn, .nav-item, .article-item, .mini-card, .friend-link, .aside-link{ transition: none; }
    }