:root {
      --bg: #ffffff;
      --bg-soft: #f7fbff;
      --line: rgba(15, 23, 42, 0.08);
      --text: #0f172a;
      --muted: #64748b;
      --muted-2: #94a3b8;
      --primary: #0f172a;
      --primary-2: #1e293b;
      --chip: #f0f9ff;
      --chip-text: #0369a1;
      --tag: #f0fdfa;
      --tag-text: #0f766e;
      --shadow: 0 12px 40px rgba(15, 23, 42, 0.05);
      --shadow-strong: 0 18px 50px rgba(15, 23, 42, 0.08);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --max: 1240px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }
    img { max-width: 100%; display: block; }
    a { color: inherit; text-decoration: none; }
    button {
      font: inherit;
      border: 0;
      background: none;
      cursor: pointer;
    }

    .container {
      width: min(var(--max), calc(100% - 32px));
      margin: 0 auto;
    }

    .hero {
      position: relative;
      overflow: hidden;
      padding-top: 128px;
      background:
        radial-gradient(circle at top, rgba(56,189,248,0.12), transparent 28%),
        radial-gradient(circle at bottom left, rgba(20,184,166,0.08), transparent 32%),
        radial-gradient(circle at right, rgba(59,130,246,0.06), transparent 30%),
        linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
    }
    .hero::after {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .03;
      background-image:
        linear-gradient(rgba(15,23,42,.28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15,23,42,.28) 1px, transparent 1px);
      background-size: 38px 38px;
      pointer-events: none;
    }
    .hero-inner {
      position: relative;
      padding: 0 0 48px;
    }
    .hero-intro {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
    }
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      border-radius: 999px;
      border: 1px solid rgba(186,230,253,.9);
      background: rgba(255,255,255,.88);
      padding: 6px 12px;
      color: var(--muted);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .18em;
      text-transform: uppercase;
      box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
    }
    .breadcrumb {
      margin-top: 24px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #64748b;
      font-size: 14px;
      font-weight: 500;
      line-height: 1.7;
    }
    .breadcrumb a { color: #475569; }
    .breadcrumb-current { color: #1e293b; }
    .hero-copy {
      width: min(100%, 860px);
      margin: 24px auto 0;
    }
    .hero h1 {
      margin: 0;
      font-size: clamp(3rem, 6vw, 5rem);
      line-height: .95;
      letter-spacing: -0.05em;
      font-weight: 700;
      text-align: center;
    }
    .hero .highlight {
      display: block;
      background: linear-gradient(180deg, #0ea5e9 0%, #475569 55%, #0f172a 100%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }
    .hero p {
      margin: 24px 0 0;
      color: var(--muted);
      font-size: clamp(16px, 2vw, 20px);
      line-height: 1.8;
      text-align: left;
    }

    .tabs-section { padding: 24px 0 8px; }
    .tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }
    .tab {
      padding: 10px 16px;
      border-radius: 999px;
      border: 1px solid rgba(148,163,184,.28);
      background: white;
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      transition: all .2s ease;
    }
    .tab:hover { background: #f8fafc; color: var(--text); }
    .tab.active {
      background: var(--primary);
      color: white;
      border-color: transparent;
      box-shadow: 0 10px 24px rgba(15,23,42,.14);
    }

    .products-section { padding: 16px 0 96px; }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 24px;
    }
    .product-card {
      overflow: hidden;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(15,23,42,.05);
      background: white;
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .product-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-strong);
    }
    .product-top { padding: 20px 20px 0; }
    .product-media {
      position: relative;
      aspect-ratio: 5 / 3;
      overflow: hidden;
      border-radius: 24px;
      border: 1px solid rgba(15,23,42,.05);
      background: linear-gradient(180deg, #f4fbff 0%, #fff 100%);
    }
    .product-media::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(255,255,255,.02) 0%, rgba(15,23,42,.10) 100%);
      z-index: 1;
    }
    .product-media::after {
      content: "";
      position: absolute;
      inset: 0;
      opacity: .08;
      background-image:
        linear-gradient(rgba(255,255,255,.28) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.28) 1px, transparent 1px);
      background-size: 18px 18px;
      z-index: 1;
    }
    .product-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .media-meta {
      position: absolute;
      z-index: 2;
    }
    .media-meta {
      left: 16px;
      right: 16px;
      bottom: 16px;
    }
    .media-label {
      color: rgba(255,255,255,.76);
      font-size: 10px;
      font-weight: 700;
      letter-spacing: .14em;
      text-transform: uppercase;
    }
    .media-title {
      margin-top: 4px;
      color: white;
      font-size: 18px;
      font-weight: 700;
      letter-spacing: -0.03em;
    }

    .product-body { padding: 24px; }
    .product-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }
    .pill {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 6px 12px;
      font-size: 12px;
      font-weight: 700;
    }
    .pill-blue {
      background: var(--chip);
      color: var(--chip-text);
      box-shadow: inset 0 0 0 1px rgba(186,230,253,.9);
    }
    .meta-right {
      color: var(--muted-2);
      font-size: 12px;
      letter-spacing: .14em;
      text-transform: uppercase;
    }
    .product-title {
      margin: 20px 0 0;
      font-size: 32px;
      line-height: 1.1;
      letter-spacing: -0.03em;
      font-weight: 700;
    }
    .product-summary {
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.9;
    }
    .tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }
    .tag {
      border-radius: 999px;
      padding: 6px 12px;
      background: var(--tag);
      color: var(--tag-text);
      box-shadow: inset 0 0 0 1px rgba(153,246,228,.7);
      font-size: 12px;
      font-weight: 700;
    }
    .features {
      margin-top: 20px;
      display: grid;
      gap: 10px;
    }
    .feature {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }
    .dot {
      width: 6px;
      height: 6px;
      border-radius: 999px;
      background: #0ea5e9;
      flex: 0 0 auto;
    }
    .product-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 28px;
      font-size: 14px;
      font-weight: 700;
      color: var(--text);
    }

    .footer-section {
      background: linear-gradient(180deg, #f8fbff 0%, #eef7ff 36%, #0f172a 100%);
      border-top: 1px solid var(--line);
    }
    .footer-wrap {
      padding: 0 0 40px;
    }
    .footer-card {
      overflow: hidden;
      border-radius: 36px;
      border: 1px solid rgba(255,255,255,.10);
      background: linear-gradient(180deg, rgba(15,23,42,.92) 0%, rgba(15,23,42,.98) 100%);
      color: white;
      box-shadow: 0 24px 80px rgba(15,23,42,.18);
      padding: 34px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 28px;
      align-items: center;
    }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 14px;
      color: inherit;
      text-decoration: none;
    }
    .footer-brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      color: white;
      background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #334155 100%);
      box-shadow: 0 12px 28px rgba(15, 23, 42, 0.22);
      position: relative;
      overflow: hidden;
      flex: 0 0 auto;
    }
    .footer-brand-mark::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at top, rgba(255, 255, 255, 0.22), transparent 55%);
    }
    .footer-brand-mark::after {
      content: "";
      position: relative;
      z-index: 1;
      width: 24px;
      height: 24px;
      background: center / contain no-repeat url("../brand/junzhuo-logo-mark.svg");
    }
    .footer-brand-mark svg { display: none; }
    .footer-brand-title { font-size: 15px; font-weight: 700; }
    .footer-nav,
    .footer-links {
      display: flex;
      flex-wrap: wrap;
    }
    .footer-nav {
      justify-content: flex-end;
      gap: 8px;
    }
    .footer-nav a {
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.10);
      background: rgba(255,255,255,.05);
      padding: 10px 16px;
      color: #cbd5e1;
      font-size: 14px;
      transition: background-color .2s ease, color .2s ease;
    }
    .footer-nav a:hover {
      background: rgba(255,255,255,.10);
      color: white;
    }
    .footer-copy {
      max-width: 720px;
      margin-top: 16px;
      color: #94a3b8;
      font-size: 14px;
      line-height: 1.9;
    }
    .footer-bottom {
      margin-top: 32px;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,.10);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      color: #94a3b8;
      font-size: 14px;
      flex-wrap: wrap;
    }
    .footer-meta-line {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 20px;
    }
    .footer-record {
      color: #94a3b8;
      font-size: 14px;
    }
    .footer-links {
      gap: 20px;
    }
    .footer-links a:hover { color: white; }

    .hidden { display: none !important; }

    @media (max-width: 1024px) {
      .products-grid { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; }
      .footer-nav { justify-content: flex-start; }
    }

    @media (max-width: 720px) {
      .container { width: min(var(--max), calc(100% - 20px)); }
      .hero {
        padding-top: 114px;
      }
      .hero-inner {
        padding: 20px 0 40px;
      }
      .hero-copy {
        width: 100%;
        margin-top: 20px;
      }
      .hero h1 {
        font-size: 40px;
        line-height: 1.02;
      }
      .hero p {
        font-size: 15px;
        line-height: 1.78;
      }
      .product-summary {
        font-size: 14.5px;
      }
      .tabs-section {
        padding-top: 18px;
      }
      .footer-copy { font-size: 13px; line-height: 1.85; }
    }