:root {
    --bg: #0a0e1a;
    --bg-soft: #0f1626;
    --bg-card: #141c2e;
    --border: rgba(255,255,255,0.06);
    --border-hover: rgba(59,130,246,0.4);
    --text: #f1f5f9;
    --text-sub: #a4b3c6;
    --text-dim: #7c8ba1;

    --l-text: #0f172a;
    --l-text-sub: #475569;
    --l-border: rgba(15,23,42,0.07);

    --accent: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-warm: #ff7b3d;
    --accent-warm-deep: #ea580c;
    --accent-green: #10b981;

    --radius: 18px;
    --radius-sm: 12px;
    --font-mono: 'SF Mono', 'JetBrains Mono', 'Roboto Mono', ui-monospace, monospace;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }
  a { text-decoration: none; color: inherit; }
  ::selection { background: var(--accent); color: #fff; }

  .grid-bg {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
      linear-gradient(rgba(59,130,246,0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 100%);
  }

  /* ============ 顶部条 ============ */
  .topbar {
    background: rgba(10,14,26,0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    font-size: 15px;
    color: var(--text-sub);
    position: relative;
    z-index: 60;
  }
  .topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
  .topbar .tb-left { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
  .topbar .tb-right { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
  .topbar .tb-item { display: flex; align-items: center; gap: 8px; }
  .live-dot {
    display: inline-block;
    width: 8px; height: 8px;
    background: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent-green);
    animation: pulse 2s infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
  }
  .tb-phone {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.5px;
    font-family: var(--font-mono);
    padding: 3px 12px;
    border-radius: 6px;
    background: rgba(59,130,246,0.12);
    border: 1px solid rgba(59,130,246,0.25);
    transition: all 0.25s;
  }
  .tb-phone:hover {
    border-color: var(--accent);
    background: rgba(59,130,246,0.2);
  }

  /* ============ Header ============ */
  header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(10,14,26,0.75);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border);
  }
  .header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 76px;
  }
  .logo { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
  .logo-mark {
    width: 46px; height: 46px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-cyan) 100%);
    border-radius: 11px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 900; font-size: 22px; color: #fff;
    box-shadow: 0 4px 16px rgba(59,130,246,0.35);
  }
  .logo-text {
    font-weight: 800;
    font-size: 19px;
    letter-spacing: 0.3px;
    white-space: nowrap;
    color: var(--text);
    line-height: 1.2;
  }
  .logo-text small {
    display: block;
    font-weight: 400;
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 1.4px;
    margin-top: 3px;
  }
  .nav-links { display: flex; gap: 30px; }
  .nav-links a {
    color: var(--text-sub);
    font-size: 18px;
    font-weight: bold;
    transition: color 0.25s;
    position: relative;
    padding: 4px 0;
  }
  .nav-links a:hover { color: var(--text); }
  .nav-links a.active { color: var(--text); }
  .nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -28px; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-cyan));
    box-shadow: 0 0 12px var(--accent);
  }

  .container { max-width: 1280px; margin: 0 auto; padding: 20px 32px; position: relative; z-index: 2; }

  /* ============ Hero ============ */
  .hero {
    position: relative;
    padding: 88px 0 72px;
    overflow: hidden;
  }
  .hero-bg {
	background-image: url("../images/bg-1.jpg");
	background-size: cover;
  }
  .hero-bg-2 {
	background-image: url("../images/bg-2.jpg");
	background-size: cover;
  }
  .hero-bg-3 {
	background-image: url("../images/bg-3.jpg");
	background-size: cover;
  }
  .hero::before {
    content: '';
    position: absolute;
    top: -200px; left: 50%;
    transform: translateX(-50%);
    width: 900px; height: 900px;
    background: radial-gradient(circle, rgba(59,130,246,0.18) 0%, rgba(6,182,212,0.08) 30%, transparent 65%);
    pointer-events: none;
  }
  .hero::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(59,130,246,0.3), transparent);
  }
  .hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 72px;
    align-items: center;
  }
  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.25);
    border-radius: 100px;
    font-size: 15px;
    color: var(--accent-cyan);
    font-weight: 500;
    margin-bottom: 24px;
    letter-spacing: 0.3px;
  }
  .hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.5;
    letter-spacing: -1.5px;
    margin-bottom: 22px;
  }
  .hero h1 .grad {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .hero p.lead {
    font-size: 17px;
    color: var(--text-sub);
    line-height: 1.8;
    max-width: 560px;
    margin-bottom: 20px;
  }
  .hero p.lead strong { color: var(--accent-cyan); font-weight: 600; }
  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 40px;
  }
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    color: #fff;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3px;
    box-shadow: 0 8px 32px rgba(59,130,246,0.4);
    transition: all 0.3s;
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(59,130,246,0.55);
  }
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 15px 28px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.14);
    transition: all 0.3s;
  }
  .btn-ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.28);
  }
  .hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
  }
  .hero-stat .num {
    font-size: 38px;
    font-weight: 800;
    font-family: var(--font-mono);
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
  }
  .hero-stat .num small {
    font-size: 15px;
    font-weight: 500;
    color: var(--accent-cyan);
    -webkit-text-fill-color: var(--accent-cyan);
    margin-left: 2px;
  }
  .hero-stat .label {
    font-size: 15px;
    color: var(--text-sub);
    margin-top: 6px;
    letter-spacing: 0.3px;
  }

  .hero-cards { display: flex; flex-direction: column; gap: 16px; margin-top: -50px; }
  .hero-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 24px;
    background: rgba(20,28,46,0.55);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    box-shadow:
      0 8px 32px rgba(0,0,0,0.25),
      inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .hero-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.06), transparent);
    border-radius: var(--radius) var(--radius) 0 0;
    pointer-events: none;
  }
  .hero-card:hover {
    border-color: var(--border-hover);
    transform: translateX(6px);
    box-shadow:
      0 16px 48px rgba(59,130,246,0.18),
      inset 0 1px 0 rgba(255,255,255,0.12);
    background: rgba(20,28,46,0.7);
  }
  .hero-card .hc-icon {
    width: 46px; height: 46px;
    flex-shrink: 0;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 21px;
    background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(6,182,212,0.1));
    border: 1px solid rgba(59,130,246,0.25);
    position: relative;
    z-index: 1;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  }
  .hero-card .hc-body { position: relative; z-index: 1; }
  .hero-card .hc-body strong {
    display: block;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
  }
  .hero-card .hc-body span {
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.65;
  }

  /* ============ 品牌墙 ============ */
  .brand-strip {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: rgba(15,22,38,0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    position: relative;
    z-index: 2;
  }
  .brand-strip .container {
    display: flex;
    align-items: center;
    gap: 32px;
  }
  .bs-label {
    color: var(--text-sub);
    font-size: 13px;
    letter-spacing: 2px;
    white-space: nowrap;
    flex-shrink: 0;
    font-weight: 600;
  }
  .brand-scroll {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  .brand-scroll::-webkit-scrollbar { display: none; }
  .brand-tag {
    padding: 10px 20px;
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 100px;
    font-size: 15px;
    color: var(--text-sub);
    white-space: nowrap;
    flex-shrink: 0;
    transition: all 0.25s;
    font-weight: 500;
  }
  .brand-tag:hover {
    border-color: var(--border-hover);
    color: var(--text);
    background: rgba(59,130,246,0.1);
  }

  /* ============ Sections ============ */
  section.dark { padding: 88px 0; position: relative; z-index: 2; }
  .sec-head { margin-bottom: 52px; }
  .sec-head h2 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 14px;
  }
  .sec-head h2 .grad {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .sec-head p {
    font-size: 16px;
    color: var(--text-sub);
    max-width: 620px;
    line-height: 1.75;
  }
  .sec-head p strong { color: var(--accent-cyan); font-weight: 600; }

  /* ============ 浅色区域 ============ */
  .light-zone {
    position: relative;
    background: linear-gradient(180deg, #f4f7fb 0%, #eaf1f8 50%, #f4f7fb 100%);
    color: var(--l-text);
    overflow: hidden;
    z-index: 2;
	padding-bottom: 50px;
  }
  .light-zone::before,
  .light-zone::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(15,23,42,0.12), transparent);
    z-index: 3;
  }
  .light-zone::before { top: 0; }
  .light-zone::after { bottom: 0; }
  .section-light {
    position: relative;
    padding: 60px 0;
    z-index: 2;
  }

  .liquid-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    opacity: 0.55;
    pointer-events: none;
    z-index: 0;
    will-change: transform;
  }
  .blob-1 {
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(96,165,250,0.55), rgba(96,165,250,0) 70%);
    top: -160px; left: -120px;
    animation: floatBlob 16s ease-in-out infinite;
  }
  .blob-2 {
    width: 560px; height: 560px;
    background: radial-gradient(circle, rgba(103,232,249,0.5), rgba(103,232,249,0) 70%);
    bottom: -200px; right: -180px;
    animation: floatBlob 20s ease-in-out infinite;
    animation-delay: -8s;
  }
  .blob-3 {
    width: 380px; height: 380px;
    background: radial-gradient(circle, rgba(196,181,253,0.4), rgba(196,181,253,0) 70%);
    top: 40%; left: 55%;
    animation: floatBlob 24s ease-in-out infinite;
    animation-delay: -12s;
  }
  @keyframes floatBlob {
    0%, 100% { transform: translate(0,0) scale(1); }
    33% { transform: translate(40px,-30px) scale(1.08); }
    66% { transform: translate(-30px,30px) scale(0.94); }
  }

  .light-zone .sec-head h2 { color: var(--l-text); }
  .light-zone .sec-head p { color: var(--l-text-sub); }
  .light-zone .sec-head p strong { color: #0891b2; }

  .glass-card {
    position: relative;
    background: rgba(255,255,255,0.55);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255,255,255,0.85);
    border-radius: var(--radius);
    box-shadow:
      0 8px 32px rgba(31,38,135,0.08),
      inset 0 1px 0 rgba(255,255,255,0.95),
      inset 0 -1px 0 rgba(255,255,255,0.4);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
  }
  .glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 55%;
    background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0));
    pointer-events: none;
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .glass-card:hover {
    transform: translateY(-6px);
    background: rgba(255,255,255,0.72);
    border-color: rgba(255,255,255,1);
    box-shadow:
      0 20px 60px rgba(31,38,135,0.14),
      0 0 0 1px rgba(59,130,246,0.1),
      inset 0 1px 0 rgba(255,255,255,1);
  }

  /* ============ 优势 ============ */
  .advantages {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .adv-card { padding: 30px 26px; }
  .adv-card .icon-box {
    width: 54px; height: 54px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 25px;
    background: linear-gradient(135deg, rgba(59,130,246,0.14), rgba(6,182,212,0.08));
    border: 1px solid rgba(59,130,246,0.18);
    margin-bottom: 22px;
    position: relative;
    z-index: 1;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.8);
  }
  .adv-card h3 {
    font-size: 19px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px;
    color: var(--l-text);
    position: relative;
    z-index: 1;
  }
  .adv-card h3 .hl {
    background: linear-gradient(135deg, var(--accent-warm-deep), #f59e0b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .adv-card p {
    font-size: 15px;
    color: var(--l-text-sub);
    line-height: 1.75;
    position: relative;
    z-index: 1;
  }

  /* ============ 筛选 ============ */
  .filters {
    display: flex;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
  }
  .filter-btn {
    padding: 10px 22px;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.03);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-sub);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s;
    font-family: inherit;
  }
  .filter-btn:hover {
    border-color: var(--border-hover);
    color: var(--text);
  }
  .filter-btn.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 24px rgba(59,130,246,0.4);
  }

  /* ============ 商品 ============ */
  .products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
  .product-card {
    background: rgba(20,28,46,0.6);
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow:
      0 8px 32px rgba(0,0,0,0.2),
      inset 0 1px 0 rgba(255,255,255,0.05);
  }
  .product-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 40%;
    background: linear-gradient(180deg, rgba(255,255,255,0.04), transparent);
    pointer-events: none;
    z-index: 3;
  }
  .product-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    background: rgba(20,28,46,0.8);
    box-shadow:
      0 24px 60px rgba(59,130,246,0.18),
      0 0 0 1px rgba(59,130,246,0.12),
      inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .product-img {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #1a2438 0%, #0f1626 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
  }
  .product-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
    background-size: 24px 24px;
    opacity: 0.5;
  }
  .product-img img {
    width: 100%; height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
  }
  .product-card:hover .product-img img { transform: scale(1.06); }
  .product-img .ph {
    display: flex; flex-direction: column;
    align-items: center; gap: 8px;
    color: var(--text-dim);
    font-size: 15px;
    position: relative;
    z-index: 1;
  }
  .product-img .ph .ph-icon {
    font-size: 52px;
    filter: drop-shadow(0 8px 20px rgba(59,130,246,0.3));
  }
  .cond-badge {
    position: absolute;
    top: 16px; left: 16px;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: #fff;
    background: var(--accent-green);
    box-shadow: 0 4px 16px rgba(16,185,129,0.4);
    z-index: 2;
    backdrop-filter: blur(8px);
  }
  .cond-badge.used {
    background: var(--accent-warm);
    box-shadow: 0 4px 16px rgba(255,123,61,0.4);
  }
  .cond-badge.new {
    background: var(--accent-green);
    box-shadow: 0 4px 16px rgba(16,185,129,0.5);
  }
  .free-ship {
    position: absolute;
    top: 16px; right: 16px;
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
    background: rgba(59,130,246,0.85);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 16px rgba(59,130,246,0.4);
    z-index: 2;
    letter-spacing: 0.3px;
  }
  .stock-tag {
    position: absolute;
    bottom: 16px; right: 16px;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    background: rgba(10,14,26,0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.1);
    z-index: 2;
  }
  .product-body {
    padding: 22px 24px 30px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
  }
  .product-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
  }
  .product-desc {
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.65;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 46px;
  }
  .product-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
    flex-wrap: wrap;
  }
  .meta-tag {
    font-size: 13px;
    color: var(--text-sub);
    padding: 4px 12px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-weight: 500;
    backdrop-filter: blur(8px);
  }
  .product-price-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-top: auto;
    padding-top: 18px;
    border-top: 1px solid var(--border);
    margin-bottom: 16px;
  }
  .price-now {
    font-size: 26px;
    font-weight: 800;
    font-family: var(--font-mono);
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--accent-warm), #ffab6b);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .price-old {
    font-size: 15px;
    color: var(--text-dim);
    text-decoration: line-through;
  }
  .product-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 0;
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.25);
    color: var(--accent-cyan);
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
    backdrop-filter: blur(8px);
  }
  .product-link:hover {
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 24px rgba(59,130,246,0.4);
  }

  /* ============ 服务地区（新增） ============ */
  .regions-wrap {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    padding: 28px 28px;
    background: rgba(255,255,255,0.55);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255,255,255,0.85);
    border-radius: var(--radius);
    box-shadow:
      0 8px 32px rgba(31,38,135,0.08),
      inset 0 1px 0 rgba(255,255,255,0.95),
      inset 0 -1px 0 rgba(255,255,255,0.4);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .regions-wrap::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 55%;
    background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0));
    pointer-events: none;
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .regions-wrap:hover {
    background: rgba(255,255,255,0.72);
    border-color: rgba(255,255,255,1);
    box-shadow:
      0 20px 60px rgba(31,38,135,0.14),
      0 0 0 1px rgba(59,130,246,0.1),
      inset 0 1px 0 rgba(255,255,255,1);
  }
  .region-tag {
    
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(59,130,246,0.08);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: normal;
    color: var(--l-text);
    transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 1;
    cursor: default;
    letter-spacing: 0.2px;
  }
  .region-tag::before {
    content: '';
    width: 6px;
    height: 6px;
    flex-shrink: 0;
  }
  .region-tag:hover {
    transform: translateY(-2px);
    color: #0891b2;
  }

  /* ============ 品类 ============ */
  .categories {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }
  .cat-card {
    padding: 26px 22px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .cat-card .cat-icon {
    width: 50px; height: 50px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 23px;
    background: linear-gradient(135deg, rgba(59,130,246,0.14), rgba(6,182,212,0.08));
    border: 1px solid rgba(59,130,246,0.18);
    position: relative;
    z-index: 1;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.8);
  }
  .cat-card h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--l-text);
    position: relative;
    z-index: 1;
  }
  .cat-card p {
    font-size: 15px;
    color: var(--l-text-sub);
    line-height: 1.7;
    position: relative;
    z-index: 1;
  }

  /* ============ 配件价格对比表 ============ */
  .compare-wrap {
    padding: 8px;
    overflow: hidden;
  }
  .compare-scroll {
    overflow-x: auto;
    border-radius: 14px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }
  .compare-scroll::-webkit-scrollbar { height: 8px; }
  .compare-scroll::-webkit-scrollbar-track {
    background: rgba(15,23,42,0.05);
    border-radius: 4px;
  }
  .compare-scroll::-webkit-scrollbar-thumb {
    background: rgba(59,130,246,0.3);
    border-radius: 4px;
  }
  table.compare {
    width: 100%;
    border-collapse: collapse;
    min-width: 860px;
    font-size: 15px;
  }
  table.compare thead th {
    background: linear-gradient(135deg, #1e3a5f 0%, #0f2740 100%);
    color: #fff;
    padding: 20px 18px;
    text-align: left;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: 0.5px;
    white-space: nowrap;
    position: relative;
  }
  table.compare thead th:first-child { border-radius: 14px 0 0 0; }
  table.compare thead th:last-child { border-radius: 0 14px 0 0; text-align: center; }
  table.compare thead th.th-old { color: #94a3b8; font-weight: 600; }
  table.compare thead th.th-new { color: var(--accent-cyan); }
  table.compare thead th.th-save {
    background: linear-gradient(135deg, var(--accent-warm-deep), #f59e0b);
    color: #fff;
    font-weight: 800;
  }
  table.compare tbody tr {
    background: rgba(255,255,255,0.5);
    transition: background 0.2s;
  }
  table.compare tbody tr:nth-child(even) {
    background: rgba(255,255,255,0.7);
  }
  table.compare tbody tr:hover {
    background: rgba(59,130,246,0.08);
  }
  table.compare tbody tr:last-child td:first-child { border-radius: 0 0 0 14px; }
  table.compare tbody tr:last-child td:last-child { border-radius: 0 0 14px 0; }
  table.compare tbody td {
    padding: 22px 18px;
    border-bottom: 1px solid rgba(15,23,42,0.06);
    color: var(--l-text-sub);
    font-size: 15px;
    line-height: 1.6;
    vertical-align: middle;
  }
  table.compare tbody tr:last-child td { border-bottom: none; }
  table.compare tbody td:first-child {
    color: var(--l-text);
    font-weight: 700;
    font-size: 16px;
    min-width: 200px;
  }
  .prod-name {
    display: flex;
    flex-direction: column;
    gap: 4px;
  }
  .prod-name .pn-brand {
    font-size: 13px;
    color: #0891b2;
    font-weight: 600;
    letter-spacing: 0.5px;
  }
  .prod-name .pn-model {
    font-size: 15px;
    font-weight: 700;
    color: var(--l-text);
    line-height: 1.4;
  }
  table.compare .td-config {
    font-size: 15px;
    color: var(--l-text-sub);
    line-height: 1.65;
  }
  table.compare .td-old-price {
    font-family: var(--font-mono);
    color: #94a3b8;
    font-weight: 600;
    font-size: 16px;
    text-decoration: line-through;
    white-space: nowrap;
  }
  table.compare .td-new-price {
    font-family: var(--font-mono);
    color: var(--accent-warm-deep);
    font-weight: 800;
    font-size: 18px;
    white-space: nowrap;
  }
  table.compare .td-save {
    text-align: center;
    white-space: nowrap;
  }
  .save-badge {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 100px;
    background: linear-gradient(135deg, var(--accent-warm), #f59e0b);
    color: #fff;
    font-weight: 800;
    font-size: 15px;
    font-family: var(--font-mono);
    letter-spacing: 0.3px;
    box-shadow: 0 4px 16px rgba(255,123,61,0.35);
  }

  /* ============ 质检 ============ */
  .qc-flow {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
  }
  .qc-step { padding: 30px 22px; }
  .qc-step .qc-num {

    font-family: var(--font-mono);
    font-size: 42px;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, rgba(59,130,246,0.55), rgba(6,182,212,0.25));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 18px;
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
  }
  .qc-step h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--l-text);
    position: relative;
    z-index: 1;
  }
  .qc-step p {
    font-size: 15px;
    color: var(--l-text-sub);
    line-height: 1.7;
    position: relative;
    z-index: 1;
  }

  /* ============ 留言 ============ */
  .inquiry-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
  }
  .inquiry-info { padding: 8px 0; }
  .inquiry-info .inf-head h3 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.8px;
    line-height: 1.3;
    color: var(--l-text);
    margin-bottom: 14px;
  }
  .inquiry-info .inf-head h3 .grad {
    background: linear-gradient(135deg, #0891b2, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .inquiry-info .inf-head p {
    font-size: 16px;
    color: var(--l-text-sub);
    line-height: 1.75;
    margin-bottom: 28px;
  }
  .inf-list { display: flex; flex-direction: column; gap: 18px; }
  .inf-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
  }
  .inf-item .inf-ico {
    width: 40px; height: 40px;
    flex-shrink: 0;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
    background: linear-gradient(135deg, rgba(59,130,246,0.14), rgba(6,182,212,0.08));
    border: 1px solid rgba(59,130,246,0.18);
  }
  .inf-item .inf-body strong {
    display: block;
    font-size: 15px;
    font-weight: 700;
    color: var(--l-text);
    margin-bottom: 2px;
  }
  .inf-item .inf-body span {
    font-size: 15px;
    color: var(--l-text-sub);
    line-height: 1.65;
  }
  .inf-item .inf-body .phone-big {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 800;
    color: var(--accent-warm-deep);
    letter-spacing: 0.3px;
  }

  .inquiry-form {
    padding: 34px 34px 38px;
    position: relative;
  }
  .inquiry-form::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 40%;
    background: linear-gradient(180deg, rgba(255,255,255,0.6), rgba(255,255,255,0));
    pointer-events: none;
    border-radius: var(--radius) var(--radius) 0 0;
    z-index: 0;
  }
  .inquiry-form .form-title {
    font-size: 28px;
    font-weight: bold;
    color: var(--l-text);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
  }
  .inquiry-form .form-sub {
    font-size: 15px;
    color: var(--l-text-sub);
    margin-bottom: 22px;
    position: relative;
    z-index: 1;
  }
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
  }
  .form-group {
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
  }
  .form-group label {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--l-text);
    margin-bottom: 8px;
  }
  .form-group label .req { color: var(--accent-warm-deep); }
  .form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--l-text);
    background: rgba(255,255,255,0.75);
    border: 1px solid rgba(15,23,42,0.1);
    border-radius: var(--radius-sm);
    transition: all 0.25s;
    outline: none;
    box-shadow: inset 0 1px 2px rgba(15,23,42,0.04);
  }
  .form-control::placeholder { color: #94a3b8; }
  .form-control:focus {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(59,130,246,0.12), inset 0 1px 2px rgba(15,23,42,0.04);
  }
  textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.65;
  }
  .form-submit {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 700;
    font-family: inherit;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 8px 28px rgba(59,130,246,0.35);
    position: relative;
    z-index: 1;
    margin-top: 8px;
    letter-spacing: 0.3px;
  }
  .form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(59,130,246,0.5);
  }
  .form-submit:active { transform: translateY(0); }
  .form-note {
    margin-top: 14px;
    font-size: 13px;
    color: var(--l-text-sub);
    text-align: center;
    position: relative;
    z-index: 1;
  }
  .form-success {
    display: none;
    padding: 20px;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.35);
    border-radius: var(--radius-sm);
    color: #047857;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    margin-top: 16px;
    position: relative;
    z-index: 1;
  }

  /* ============ CTA ============ */
  .cta-wrap { padding: 88px 0 76px; position: relative; z-index: 2; }
  .cta-section {
    padding: 60px 52px;
    border-radius: 24px;
    background:
      radial-gradient(circle at 80% 20%, rgba(59,130,246,0.18), transparent 50%),
      radial-gradient(circle at 20% 80%, rgba(6,182,212,0.12), transparent 50%),
      linear-gradient(135deg, #0f1a30 0%, #0a1426 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(59,130,246,0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    overflow: hidden;
    box-shadow:
      0 0 80px rgba(59,130,246,0.1),
      inset 0 1px 0 rgba(255,255,255,0.08);
  }
  .cta-section::before {
    content: '';
    position: absolute;
    top: -50%; right: -10%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(59,130,246,0.2), transparent 70%);
    pointer-events: none;
  }
  .cta-section::after {
    content: '';
    position: absolute;
    bottom: -50%; left: -5%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(6,182,212,0.12), transparent 70%);
    pointer-events: none;
  }
  .cta-left { position: relative; z-index: 1; }
  .cta-left h3 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -0.8px;
    margin-bottom: 12px;
    line-height: 1.3;
  }
  .cta-left h3 .grad {
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
  .cta-left p {
    font-size: 16px;
    color: var(--text-sub);
    line-height: 1.7;
  }
  .cta-left .cta-phone-line {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-sub);
  }
  .cta-left .cta-phone-line a {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    letter-spacing: 0.3px;
    transition: color 0.25s;
  }
  .cta-left .cta-phone-line a:hover { color: var(--accent-cyan); }
  .cta-right {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    flex-wrap: wrap;
  }
  .cta-btn {
    padding: 16px 32px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    white-space: nowrap;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .cta-btn.primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
    color: #fff;
    box-shadow: 0 8px 32px rgba(59,130,246,0.4);
  }
  .cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 44px rgba(59,130,246,0.55);
  }
  .cta-btn.ghost {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text);
    border: 1px solid rgba(255,255,255,0.14);
  }
  .cta-btn.ghost:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.28);
  }

  /* ============ Footer ============ */
  footer {
    border-top: 1px solid var(--border);
    padding: 52px 0 36px;
    background: rgba(10,14,26,0.8);
    position: relative;
    z-index: 2;
  }
  .footer-top {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr 1.4fr;
    gap: 40px;
    margin-bottom: 36px;
  }
  .footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 18px;
    letter-spacing: 0.3px;
  }
  .footer-col .f-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
  .footer-col .f-desc {
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.75;
    max-width: 320px;
  }
  .footer-col .f-links {
    display: flex;
    flex-direction: column;
    gap: 11px;
  }
  .footer-col .f-links a {
    color: var(--text-sub);
    font-size: 15px;
    transition: color 0.2s;
  }
  .footer-col .f-links a:hover { color: var(--accent-cyan); }
  .footer-col .f-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .footer-col .f-phone-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.3px;
    transition: color 0.25s;
    align-self: flex-start;
  }
  .footer-col .f-phone-link:hover { color: var(--accent-cyan); }
  .footer-col .f-phone-link .fp-ico { font-size: 15px; }
  .footer-col .f-warehouses {
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.85;
  }
  .footer-copy {
    padding-top: 26px;
    border-top: 1px solid var(--border);
    font-size: 15px;
    color: var(--text-dim);
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
  }

  /* ============ 返回顶部按钮 ============ */
  .back-to-top {
    position: fixed;
    right: 32px;
    bottom: 32px;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(20,28,46,0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(59,130,246,0.3);
    color: var(--accent-cyan);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 90;
    box-shadow:
      0 8px 32px rgba(0,0,0,0.4),
      inset 0 1px 0 rgba(255,255,255,0.1);
    font-family: inherit;
    padding: 0;
  }
  .back-to-top .bt-arrow {
    font-size: 20px;
    line-height: 1;
    font-weight: 700;
    transition: transform 0.3s;
  }
  .back-to-top .bt-text {
    font-size: 10px;
    margin-top: 2px;
    letter-spacing: 0.5px;
    color: var(--text-sub);
    font-weight: 600;
  }
  .back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .back-to-top:hover {
    border-color: var(--accent);
    background: rgba(59,130,246,0.15);
    box-shadow:
      0 12px 40px rgba(59,130,246,0.3),
      inset 0 1px 0 rgba(255,255,255,0.15);
  }
  .back-to-top:hover .bt-arrow {
    transform: translateY(-3px);
  }

  /* ============ 滚动动画 ============ */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .reveal.in { opacity: 1; transform: translateY(0); }

  /* ============ 响应式 ============ */
  @media (max-width: 1100px) {
    .hero h1 { font-size: 42px; }
    .hero-inner { grid-template-columns: 1fr; gap: 52px; }
    .advantages { grid-template-columns: repeat(2, 1fr); }
    .products { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .qc-flow { grid-template-columns: repeat(3, 1fr); }
    .categories { grid-template-columns: repeat(2, 1fr); }
    .inquiry-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  }
  @media (max-width: 768px) {
    body { font-size: 15px; }
    .container { padding: 20px 20px; }
    .header-inner { padding: 0 20px; height: 68px; gap: 12px; }
    .nav-links { display: none; }
    .logo-mark { width: 42px; height: 42px; font-size: 16px; }
    .logo-text { font-size: 17px; }
    .logo-text small { font-size: 9px; letter-spacing: 1.2px; }
    .topbar { font-size: 13px; padding: 10px 0; }
    .topbar .tb-left, .topbar .tb-right { gap: 12px; width: 100%; justify-content: left; }
    .tb-phone { font-size: 13px; padding: 2px 10px; }
    .hero { padding: 56px 0 48px; }
    .hero h1 { font-size: 30px; letter-spacing: -1px; }
    .hero p.lead { font-size: 15px; }
    .hero-tag { font-size: 13px; padding: 7px 14px; }
    .hero-actions { gap: 10px; }
    .btn-primary, .btn-ghost { padding: 13px 22px; font-size: 15px; }
    .hero-stats { gap: 18px; padding-top: 24px; }
    .hero-stat .num { font-size: 26px; }
    .hero-stat .label { font-size: 13px; }
	.hero-cards { margin-top: 0px; }
    .hero-card { padding: 18px 20px;  }
    .hero-card .hc-icon { width: 42px; height: 42px; font-size: 19px; }
    .hero-card .hc-body strong { font-size: 15px; }
    .hero-card .hc-body span { font-size: 13px; }
    .brand-strip { padding: 24px 0; }
    .brand-strip .container { gap: 16px; }
    .brand-tag { padding: 8px 16px; font-size: 13px; }
    .bs-label { font-size: 12px; }
    section.dark, .section-light { padding: 60px 0; }
    .sec-head { margin-bottom: 36px; }
    .sec-head h2 { font-size: 24px; letter-spacing: -0.5px; }
    .sec-head p { font-size: 15px; }
    .advantages { grid-template-columns: 1fr; gap: 16px; }
    .adv-card { padding: 22px 20px; }
    .adv-card h3 { font-size: 17px; }
    .adv-card p { font-size: 15px; }
    .products { grid-template-columns: 1fr; gap: 18px; }
    .product-body { padding: 20px 22px 35px 22px; }
    .product-title { font-size: 18px; }
    .product-desc { font-size: 13px; }
    .price-now { font-size: 22px; }
    .price-old { font-size: 15px; }
    .product-link { font-size: 15px; padding: 12px 0; }
    .filter-btn { font-size: 15px; padding: 9px 18px; }
    /* 服务地区 移动端 */
    .regions-wrap { padding: 18px 16px; gap: 8px; }
    .region-tag { padding: 7px 14px; font-size: 13px; gap: 6px; }
    .region-tag::before { width: 5px; height: 5px; }
    .categories { grid-template-columns: 1fr 1fr; gap: 14px; }
    .cat-card { padding: 20px 18px; }
    .cat-card .cat-icon { width: 44px; height: 44px; font-size: 20px; }
    .cat-card h3 { font-size: 15px; }
    .cat-card p { font-size: 13px; }
    .compare-wrap { padding: 4px; }
    table.compare { font-size: 15px; min-width: 780px; }
    table.compare thead th { padding: 16px 14px; font-size: 13px; }
    table.compare tbody td { padding: 18px 14px; font-size: 15px; }
    table.compare tbody td:first-child { font-size: 15px; min-width: 180px; }
    .prod-name .pn-brand { font-size: 12px; }
    .prod-name .pn-model { font-size: 15px; }
    table.compare .td-config { font-size: 13px; }
    table.compare .td-old-price { font-size: 15px; }
    table.compare .td-new-price { font-size: 17px; }
    .save-badge { padding: 6px 12px; font-size: 13px; }
    .qc-flow { grid-template-columns: 1fr 1fr; gap: 14px; }
    .qc-step { padding: 22px 18px; }
    .qc-step .qc-num { font-size: 32px; margin-bottom: 14px; }
    .qc-step h4 { font-size: 15px; }
    .qc-step p { font-size: 13px; }
    .inquiry-info .inf-head h3 { font-size: 24px; }
    .inquiry-info .inf-head p { font-size: 15px; }
    .inquiry-form { padding: 26px 22px 30px; }
    .inquiry-form .form-title { font-size: 18px; }
    .inquiry-form .form-sub { font-size: 15px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }
    .form-group label { font-size: 13px; }
    .form-control { font-size: 15px; }
    .cta-wrap { padding: 60px 0 52px; }
    .cta-section { flex-direction: column; text-align: center; padding: 34px 22px; gap: 22px; }
    .cta-left h3 { font-size: 22px; }
    .cta-left p { font-size: 15px; }
    .cta-left .cta-phone-line { justify-content: center; flex-direction: column; gap: 4px; font-size: 15px; }
    .cta-left .cta-phone-line a { font-size: 22px; }
    .cta-right { width: 100%; flex-direction: column; }
    .cta-btn { width: 100%; justify-content: center; padding: 14px 22px; font-size: 15px; }
    .footer-top { grid-template-columns: 1fr; gap: 28px; }
    .footer-col h4 { font-size: 15px; }
    .footer-col .f-desc { font-size: 15px; }
    .footer-col .f-links a { font-size: 15px; }
    .footer-col .f-phone-link { font-size: 18px; }
    .footer-col .f-warehouses { font-size: 15px; }
    .footer-copy { flex-direction: column; gap: 8px; text-align: center; font-size: 13px; }
    .liquid-blob { filter: blur(60px); opacity: 0.5; }
    .back-to-top {
      right: 16px;
      bottom: 16px;
      width: 46px;
      height: 46px;
      border-radius: 12px;
    }
    .back-to-top .bt-arrow { font-size: 18px; }
    .back-to-top .bt-text { display: none; }
  }
  @media (max-width: 480px) {
    .hero h1 { font-size: 24px; }
    .hero-stats { grid-template-columns: 1fr; gap: 14px; padding-top: 22px; }
    .hero-stat { display: flex; align-items: baseline; gap: 12px; }
    .hero-stat .num { font-size: 30px; }
    .hero-stat .label { margin-top: 0; }
    .qc-flow { grid-template-columns: 1fr; }
    .categories { grid-template-columns: 1fr; }
    .filters { gap: 8px; }
    .filter-btn { padding: 8px 14px; font-size: 13px; }
    /* 服务地区 小屏 */
    .regions-wrap { padding: 16px 14px; gap: 7px; }
    .region-tag { padding: 6px 12px; font-size: 12px; gap: 5px; }
  }