*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --primary: #1a56db;
      --primary-dark: #1447c0;
      --primary-light: #3b82f6;
      --primary-bg: #eff6ff;
      --accent: #f59e0b;
      --green: #10b981;
      --dark: #0f172a;
      --dark-2: #1e293b;
      --text: #1e293b;
      --text-light: #64748b;
      --bg: #f8fafc;
      --white: #ffffff;
      --border: #e8edf3;
      --success: #10b981;
      --radius: 14px;
      --radius-lg: 20px;
      --shadow: 0 4px 24px rgba(26,86,219,0.08);
      --shadow-lg: 0 12px 48px rgba(26,86,219,0.13);
      --transition: 0.25s ease;
    }

    html { scroll-behavior: smooth; }
    body { font-family: 'Noto Sans SC', -apple-system, sans-serif; color: var(--text); line-height: 1.7; overflow-x: hidden; background: var(--bg); }
    a { text-decoration: none; color: inherit; }
    .container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

    /* ===== NAVBAR ===== */
    .navbar {
      background: rgba(255,255,255,0.88);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(232,237,243,0.6);
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      transition: all .3s;
    }
    .navbar.scrolled { background: rgba(255,255,255,0.97); box-shadow: 0 1px 20px rgba(0,0,0,.06); }
    .nav-inner { max-width: 1160px; margin: 0 auto; padding: 0 24px; height: 68px; display: flex; align-items: center; justify-content: space-between; }
    .logo { display: flex; align-items: center; gap: 6px; }
    .logo-icon { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-weight: 800; font-size: 15px; padding: 5px 10px; border-radius: 8px; }
    .logo-name { font-size: 18px; font-weight: 700; color: var(--primary); }
    .nav-links { display: flex; align-items: center; gap: 32px; }
    .nav-links a { font-size: 14px; font-weight: 500; color: var(--text-light); transition: color var(--transition); position: relative; }
    .nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; right:0; height:2px; background:var(--primary); transform:scaleX(0); transition:transform var(--transition); border-radius:2px; }
    .nav-links a:hover, .nav-links a.active { color: var(--primary); }
    .nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
    .nav-btn { padding: 9px 22px; background: var(--primary); color: #fff; border-radius: 8px; font-size: 14px; font-weight: 600; transition: all var(--transition); }
    .nav-btn:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(26,86,219,0.3); }
    .hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; cursor: pointer; background: none; border: none; }
    .hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }
    .mobile-menu { display: none; flex-direction: column; padding: 16px 24px 20px; border-top: 1px solid var(--border); gap: 4px; background: #fff; }
    .mobile-menu.open { display: flex; }
    .mobile-menu a { padding: 10px 0; font-size: 15px; color: var(--text); border-bottom: 1px solid var(--border); }
    .mobile-menu .nav-btn { margin-top: 12px; text-align: center; }

    /* ===== HERO ===== */
    .hero {
      padding: 130px 0 80px;
      background: linear-gradient(150deg, #dbeafe 0%, #eff6ff 40%, #f8fafc 100%);
      position: relative;
      overflow: hidden;
    }
    .hero::before {
      content: '';
      position: absolute;
      width: 600px; height: 600px;
      background: radial-gradient(circle, rgba(26,86,219,0.1) 0%, transparent 70%);
      top: -200px; right: -100px;
      border-radius: 50%;
    }
    .hero::after {
      content: '';
      position: absolute;
      width: 400px; height: 400px;
      background: radial-gradient(circle, rgba(96,165,250,0.08) 0%, transparent 70%);
      bottom: -100px; left: -50px;
      border-radius: 50%;
    }
    .hero-inner { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
    .breadcrumb { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text-light); margin-bottom: 20px; }
    .breadcrumb a { color: var(--primary); }
    .breadcrumb span { opacity: .5; }
    .hero-badge {
      display: inline-flex; align-items: center; gap: 6px;
      background: rgba(26,86,219,0.08); color: var(--primary);
      font-size: 13px; font-weight: 600; padding: 6px 14px;
      border-radius: 100px; margin-bottom: 20px;
      border: 1px solid rgba(26,86,219,0.15);
    }
    .hero-badge .dot { width: 6px; height: 6px; background: var(--primary); border-radius: 50%; animation: pulse 2s infinite; }
    @keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.4)} }
    .hero h1 { font-size: clamp(30px, 4vw, 48px); font-weight: 900; line-height: 1.15; margin-bottom: 20px; color: var(--dark); }
    .hero h1 em { font-style: normal; background: linear-gradient(135deg, var(--primary), #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .hero-desc { font-size: 16px; color: var(--text-light); line-height: 1.8; margin-bottom: 32px; }
    .hero-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
    .hero-tag { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; background: #fff; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; color: var(--text); box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
    .hero-tag .icon { font-size: 15px; }
    .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
    .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 28px; border-radius: 10px; font-size: 15px; font-weight: 600; transition: all var(--transition); cursor: pointer; border: 2px solid transparent; }
    .btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
    .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.3); }
    .btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
    .btn-outline:hover { background: var(--primary-bg); transform: translateY(-2px); }

    /* Hero Right Card */
    .hero-card {
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      overflow: hidden;
      border: 1px solid var(--border);
    }
    .hc-header {
      background: linear-gradient(135deg, var(--primary) 0%, #2563eb 100%);
      padding: 28px;
      color: #fff;
    }
    .hc-header h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
    .hc-header p { font-size: 13px; opacity: .8; }
    .hc-price { display: flex; align-items: baseline; gap: 6px; margin-top: 16px; }
    .hc-price .from { font-size: 13px; opacity: .75; }
    .hc-price .num { font-size: 40px; font-weight: 900; }
    .hc-price .unit { font-size: 14px; opacity: .8; }
    .hc-body { padding: 24px 28px; }
    .hc-includes { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
    .hc-item { display: flex; align-items: center; gap: 10px; font-size: 14px; }
    .hc-item .check { width: 20px; height: 20px; background: #dcfce7; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; color: #16a34a; flex-shrink: 0; font-weight: 700; }
    .hc-divider { height: 1px; background: var(--border); margin: 16px 0; }
    .hc-stat-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
    .hc-stat { text-align: center; background: var(--bg); border-radius: 10px; padding: 12px; }
    .hc-stat .val { font-size: 22px; font-weight: 800; color: var(--primary); }
    .hc-stat .lab { font-size: 12px; color: var(--text-light); margin-top: 2px; }
    .hc-btn { width: 100%; padding: 14px; background: linear-gradient(135deg, var(--primary), #2563eb); color: #fff; border: none; border-radius: 10px; font-size: 15px; font-weight: 700; cursor: pointer; transition: all var(--transition); letter-spacing: .3px; }
    .hc-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,86,219,0.3); }

    /* ===== SECTION COMMON ===== */
    .section { padding: 90px 0; }
    .section-alt { background: #fff; }
    .section-dark { background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%); color: #fff; }
    .sec-label { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--primary); background: var(--primary-bg); padding: 5px 12px; border-radius: 100px; margin-bottom: 16px; }
    .sec-title { font-size: clamp(26px, 3vw, 38px); font-weight: 800; line-height: 1.25; margin-bottom: 16px; color: var(--dark); }
    .sec-title em { font-style: normal; background: linear-gradient(135deg, var(--primary), #60a5fa); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .section-dark .sec-title { color: #fff; }
    .sec-sub { font-size: 16px; color: var(--text-light); max-width: 560px; line-height: 1.8; }
    .section-dark .sec-sub { color: rgba(255,255,255,0.65); }
    .sec-head { margin-bottom: 56px; }
    .sec-head.center { text-align: center; }
    .sec-head.center .sec-sub { margin: 0 auto; }

    /* ===== NOTICE BANNER ===== */
    .notice-banner {
      background: linear-gradient(135deg, #fef3c7, #fde68a);
      border: 1px solid #f59e0b;
      border-radius: 12px;
      padding: 14px 20px;
      display: flex;
      align-items: flex-start;
      gap: 12px;
      margin-bottom: 48px;
    }
    .notice-banner .ni { font-size: 20px; flex-shrink: 0; }
    .notice-banner p { font-size: 14px; color: #92400e; line-height: 1.6; }
    .notice-banner strong { color: #78350f; }

    /* ===== TYPE CARDS (公司类型) ===== */
    .type-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .type-card {
      background: #fff;
      border: 1.5px solid var(--border);
      border-radius: var(--radius);
      padding: 32px 28px;
      transition: all var(--transition);
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }
    .type-card::before {
      content: '';
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--primary-light));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform var(--transition);
    }
    .type-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--primary-light); }
    .type-card:hover::before { transform: scaleX(1); }
    .type-card.popular { border-color: var(--primary); }
    .type-card.popular::before { transform: scaleX(1); }
    .popular-tag {
      position: absolute; top: 16px; right: 16px;
      background: var(--primary); color: #fff;
      font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 100px;
    }
    .tc-icon { font-size: 36px; margin-bottom: 16px; }
    .tc-name { font-size: 18px; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
    .tc-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 20px; }
    .tc-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
    .tc-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); list-style: none; }
    .tc-list li::before { content: '✓'; color: var(--green); font-weight: 700; flex-shrink: 0; }
    .tc-price { font-size: 22px; font-weight: 800; color: var(--primary); }
    .tc-price span { font-size: 13px; font-weight: 400; color: var(--text-light); }

    /* ===== PROCESS ===== */
    .process-wrap { position: relative; }
    .process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
    .process-steps::before {
      content: '';
      position: absolute;
      top: 48px; left: 10%; right: 10%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary-bg), var(--primary), var(--primary-bg));
    }
    .proc-step { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 0 12px; position: relative; z-index: 1; }
    .proc-num {
      width: 54px; height: 54px;
      background: #fff;
      border: 2.5px solid var(--primary);
      border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-size: 20px; font-weight: 900; color: var(--primary);
      margin-bottom: 20px;
      box-shadow: 0 0 0 6px var(--primary-bg);
      transition: all var(--transition);
    }
    .proc-step:hover .proc-num { background: var(--primary); color: #fff; transform: scale(1.1); }
    .proc-name { font-size: 15px; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
    .proc-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }
    .proc-time { display: inline-block; margin-top: 8px; padding: 3px 10px; background: var(--primary-bg); color: var(--primary); border-radius: 100px; font-size: 12px; font-weight: 600; }

    /* ===== MATERIALS LIST ===== */
    .materials-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
    .mat-card {
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      overflow: hidden;
    }
    .mat-head {
      padding: 20px 24px;
      background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
      border-bottom: 1px solid #bfdbfe;
      display: flex; align-items: center; gap: 12px;
    }
    .mat-head .mi { font-size: 22px; }
    .mat-head h4 { font-size: 16px; font-weight: 700; color: var(--dark); }
    .mat-head .cnt { margin-left: auto; background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; padding: 2px 10px; border-radius: 100px; }
    .mat-body { padding: 20px 24px; }
    .mat-item { display: flex; align-items: flex-start; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
    .mat-item:last-child { border-bottom: none; }
    .mat-item .idx { width: 22px; height: 22px; background: var(--primary-bg); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: var(--primary); flex-shrink: 0; }
    .mat-item .txt { flex: 1; line-height: 1.6; }
    .mat-item .tag { font-size: 11px; padding: 2px 8px; border-radius: 4px; flex-shrink: 0; font-weight: 600; }
    .tag-must { background: #fee2e2; color: #dc2626; }
    .tag-opt  { background: #fef3c7; color: #b45309; }

    /* ===== PRICING ===== */
    .pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .price-card {
      background: #fff;
      border: 1.5px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 36px 28px;
      display: flex; flex-direction: column;
      transition: all var(--transition);
    }
    .price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .price-card.featured { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.1), var(--shadow-lg); position: relative; }
    .feat-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 16px; border-radius: 100px; white-space: nowrap; }
    .pc-head { margin-bottom: 28px; }
    .pc-tier { font-size: 13px; font-weight: 700; color: var(--primary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
    .pc-name { font-size: 20px; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
    .pc-desc { font-size: 13px; color: var(--text-light); line-height: 1.6; }
    .pc-price { display: flex; align-items: baseline; gap: 4px; margin: 20px 0; }
    .pc-price .sym { font-size: 20px; font-weight: 700; color: var(--dark); }
    .pc-price .num { font-size: 42px; font-weight: 900; color: var(--dark); line-height: 1; }
    .pc-price .per { font-size: 14px; color: var(--text-light); }
    .pc-features { display: flex; flex-direction: column; gap: 12px; flex: 1; margin-bottom: 28px; }
    .pc-feat { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
    .pc-feat .ck { width: 18px; height: 18px; background: #dcfce7; border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 10px; color: #16a34a; flex-shrink: 0; font-weight: 700; margin-top: 2px; }
    .pc-feat .ck.no { background: #f1f5f9; color: #cbd5e1; }
    .pc-feat span { color: var(--text-light); }
    .pc-feat span.active { color: var(--text); }
    .pc-btn { width: 100%; padding: 13px; border-radius: 10px; font-size: 15px; font-weight: 700; cursor: pointer; border: 2px solid var(--primary); transition: all var(--transition); }
    .pc-btn.solid { background: var(--primary); color: #fff; }
    .pc-btn.solid:hover { background: var(--primary-dark); box-shadow: 0 6px 20px rgba(26,86,219,0.3); }
    .pc-btn.ghost { background: transparent; color: var(--primary); }
    .pc-btn.ghost:hover { background: var(--primary-bg); }

    /* ===== ADVANTAGES ===== */
    .adv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .adv-visual {
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 50%, #1e40af 100%);
      border-radius: var(--radius-lg);
      padding: 40px 36px;
      color: #fff;
    }
    .adv-visual h3 { font-size: 22px; font-weight: 800; margin-bottom: 28px; }
    .adv-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .adv-stat {
      background: rgba(255,255,255,0.12);
      border-radius: 12px;
      padding: 20px;
      text-align: center;
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255,255,255,0.15);
      transition: background var(--transition);
    }
    .adv-stat:hover { background: rgba(255,255,255,0.2); }
    .adv-stat .sv { font-size: 34px; font-weight: 900; }
    .adv-stat .sl { font-size: 13px; opacity: .8; margin-top: 4px; }
    .adv-list { display: flex; flex-direction: column; gap: 20px; }
    .adv-item { display: flex; align-items: flex-start; gap: 16px; }
    .adv-icon {
      width: 48px; height: 48px;
      background: var(--primary-bg);
      border-radius: 12px;
      display: flex; align-items: center; justify-content: center;
      font-size: 22px;
      flex-shrink: 0;
      transition: all var(--transition);
    }
    .adv-item:hover .adv-icon { background: var(--primary); transform: scale(1.1); }
    .adv-body h4 { font-size: 16px; font-weight: 700; color: var(--dark); margin-bottom: 4px; }
    .adv-body p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

    /* ===== FAQ ===== */
    .faq-list { display: flex; flex-direction: column; gap: 16px; max-width: 860px; margin: 0 auto; }
    .faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
    .faq-q {
      padding: 20px 24px; font-size: 15px; font-weight: 600; color: var(--dark);
      cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px;
      transition: background var(--transition);
    }
    .faq-q:hover { background: var(--primary-bg); }
    .faq-q .fq-icon { font-size: 13px; color: var(--primary); flex-shrink: 0; transition: transform var(--transition); font-weight: 900; }
    .faq-item.open .fq-icon { transform: rotate(45deg); }
    .faq-a { padding: 0 24px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s; font-size: 14px; color: var(--text-light); line-height: 1.8; }
    .faq-item.open .faq-a { max-height: 300px; padding-bottom: 20px; }

    /* ===== RELATED SERVICES ===== */
    .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .rel-card {
      background: rgba(255,255,255,0.05);
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius);
      padding: 28px;
      transition: all var(--transition);
    }
    .rel-card:hover { background: rgba(255,255,255,0.1); transform: translateY(-4px); }
    .rel-icon { font-size: 32px; margin-bottom: 14px; }
    .rel-name { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 8px; }
    .rel-desc { font-size: 13px; color: rgba(255,255,255,0.6); line-height: 1.7; margin-bottom: 16px; }
    .rel-link { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: #93c5fd; font-weight: 600; transition: gap var(--transition); }
    .rel-card:hover .rel-link { gap: 8px; }

    /* ===== CTA ===== */
    .cta-section {
      padding: 90px 0;
      background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 50%, #1e40af 100%);
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      width: 500px; height: 500px;
      background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 70%);
      top: -200px; left: -100px;
      border-radius: 50%;
    }
    .cta-section::after {
      content: '';
      position: absolute;
      width: 400px; height: 400px;
      background: radial-gradient(circle, rgba(255,255,255,0.06), transparent 70%);
      bottom: -150px; right: -50px;
      border-radius: 50%;
    }
    .cta-inner { position: relative; z-index: 1; }
    .cta-inner h2 { font-size: clamp(28px, 3.5vw, 42px); font-weight: 900; color: #fff; margin-bottom: 16px; line-height: 1.2; }
    .cta-inner p { font-size: 17px; color: rgba(255,255,255,0.75); margin-bottom: 40px; }
    .cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
    .btn-white { background: #fff; color: var(--primary); border: none; }
    .btn-white:hover { background: #f1f5f9; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
    .btn-ghost-white { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
    .btn-ghost-white:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }

    /* ===== SIDEBAR ===== */
    .layout-with-sidebar { display: grid; grid-template-columns: 1fr 280px; gap: 48px; align-items: flex-start; }
    .sidebar { position: sticky; top: 90px; display: flex; flex-direction: column; gap: 20px; }
    .sb-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
    .sb-head { padding: 16px 20px; background: linear-gradient(135deg, var(--primary), #2563eb); color: #fff; font-size: 14px; font-weight: 700; }
    .sb-body { padding: 16px 20px; }
    .sb-nav { display: flex; flex-direction: column; gap: 4px; }
    .sb-nav a { padding: 8px 12px; font-size: 13px; color: var(--text-light); border-radius: 8px; transition: all var(--transition); display: flex; align-items: center; gap: 8px; }
    .sb-nav a:hover, .sb-nav a.active { background: var(--primary-bg); color: var(--primary); font-weight: 600; }
    .sb-nav a .nb { width: 20px; height: 20px; background: var(--border); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 700; color: var(--text-light); flex-shrink: 0; }
    .sb-nav a.active .nb { background: var(--primary); color: #fff; }
    .sb-cta-btn { display: block; width: 100%; padding: 12px; background: var(--primary); color: #fff; border: none; border-radius: 10px; font-size: 14px; font-weight: 700; cursor: pointer; transition: all var(--transition); text-align: center; }
    .sb-cta-btn:hover { background: var(--primary-dark); }
    .sb-cta-btn.outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); margin-top: 8px; }
    .sb-cta-btn.outline:hover { background: var(--primary-bg); }
    .sb-cert { display: flex; flex-direction: column; gap: 10px; }
    .sb-cert-item { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text); }
    .sb-cert-item .ci { width: 32px; height: 32px; border-radius: 8px; background: var(--primary-bg); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }

    /* ===== FOOTER ===== */
    .footer { background: var(--dark); color: rgba(255,255,255,0.6); padding: 56px 0 28px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
    .footer-logo { display: flex; align-items: center; gap: 6px; margin-bottom: 16px; }
    .footer-logo .fi { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-weight: 800; font-size: 14px; padding: 4px 9px; border-radius: 7px; }
    .footer-logo .fn { font-size: 16px; font-weight: 700; color: #fff; }
    .footer-desc { font-size: 13px; line-height: 1.8; max-width: 260px; }
    .footer-col h5 { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 16px; }
    .footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 10px; transition: color var(--transition); }
    .footer-col a:hover { color: #fff; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
    .footer-bottom p { font-size: 13px; }

    /* ===== FLOAT PHONE ===== */
    .float-cta {
      position: fixed; bottom: 28px; right: 28px; z-index: 900;
      display: flex; flex-direction: column; gap: 10px; align-items: flex-end;
    }
    .float-btn {
      display: flex; align-items: center; gap: 8px; padding: 12px 20px;
      border-radius: 50px; font-size: 14px; font-weight: 700; cursor: pointer; border: none;
      box-shadow: 0 6px 24px rgba(0,0,0,0.18); transition: all var(--transition);
    }
    .float-btn.phone { background: var(--green); color: #fff; }
    .float-btn.phone:hover { background: #059669; transform: translateY(-2px); }
    .float-btn.wechat { background: #fff; color: var(--text); border: 1.5px solid var(--border); }
    .float-btn.wechat:hover { border-color: #07c160; color: #07c160; transform: translateY(-2px); }

    /* ===== RESPONSIVE ===== */
    @media (max-width: 1024px) {
      .layout-with-sidebar { grid-template-columns: 1fr; }
      .sidebar { display: none; }
      .type-grid { grid-template-columns: 1fr 1fr; }
      .pricing-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .hero-inner { grid-template-columns: 1fr; }
      .hero { padding: 110px 0 60px; }
      .hero-card { display: none; }
      .type-grid { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
      .process-steps::before { display: none; }
      .materials-grid { grid-template-columns: 1fr; }
      .pricing-grid { grid-template-columns: 1fr; }
      .adv-grid { grid-template-columns: 1fr; }
      .related-grid { grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .float-btn span.label { display: none; }
      .float-btn { padding: 12px; }
    }
    @media (max-width: 480px) {
      .related-grid { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
    }