/* ============================================================
       全局
    ============================================================ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --black: #0e0e0c; --gold: #c9a96e; --gold-dark: #8b6914;
      --gold-light: #e8d5b0; --white: #ffffff;
      --bg-warm: #faf8f5; --bg-dark: #111110;
      --text-body: #3a3834; --text-mute: #7a7570;
      --border: rgba(201,169,110,0.2);
      --radius: 6px; --radius-lg: 12px;
      --shadow-sm: 0 2px 12px rgba(14,14,12,0.06);
      --shadow-md: 0 8px 32px rgba(14,14,12,0.10);
      --shadow-lg: 0 20px 60px rgba(14,14,12,0.14);
      --trans: 0.35s cubic-bezier(0.4,0,0.2,1);
    }
    html { scroll-behavior: smooth; font-size: 16px; }
    body {
      font-family: 'Outfit', 'PingFang SC', sans-serif;
      background: var(--white); color: var(--black);
      line-height: 1.7; overflow-x: hidden;
    }
    a { text-decoration: none; color: inherit; }
    ul { list-style: none; }
    button { cursor: pointer; border: none; background: none; font-family: inherit; }
    img { display: block; width: 100%; height: 100%; object-fit: cover; }
    .container { max-width: 1260px; margin: 0 auto; padding: 0 40px; }
    .section { padding: 100px 0; }
    .gold { color: var(--gold); }
    .noto { font-family: 'Noto Serif SC', serif; }

    /* ============================================================
       导航
    ============================================================ */
    .nav-header {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      background: rgba(255,255,255,0.96);
      backdrop-filter: blur(18px) saturate(180%);
      -webkit-backdrop-filter: blur(18px) saturate(180%);
      box-shadow: 0 1px 0 var(--border);
    }
    .nav-inner {
      max-width: 1260px; margin: 0 auto; padding: 0 40px;
      height: 72px; display: flex; align-items: center; justify-content: space-between;
    }
    .nav-logo { display: flex; align-items: center; text-decoration: none; }
    .logo-img { height: 55px; width: auto; display: block; object-fit: contain; }
    .logo-img-footer { height: 36px; filter: brightness(0) invert(1); }
    .logo-vv {
      width: 40px; height: 40px; background: var(--black); color: var(--gold);
      border-radius: 4px; display: flex; align-items: center; justify-content: center;
      font-size: 14px; font-weight: 800; letter-spacing: 1px; flex-shrink: 0;
    }
    .logo-text { font-size: 17px; font-weight: 700; letter-spacing: 1.5px; color: var(--black); line-height: 1; }
    .logo-text em { font-style: normal; font-size: 12px; font-weight: 400; color: var(--gold); display: block; letter-spacing: 2px; margin-top: 2px; font-family: 'Noto Serif SC', serif; }
    .nav-links { display: flex; align-items: center; gap: 36px; }
    .nav-links a { font-size: 14px; font-weight: 500; letter-spacing: 0.5px; color: var(--black); transition: color var(--trans); position: relative; }
    .nav-links a::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 1.5px; background: var(--gold); transition: width var(--trans); }
    .nav-links a:hover { color: var(--gold); }
    .nav-links a:hover::after { width: 100%; }
    .nav-links a.active { color: var(--gold); }
    .nav-links a.active::after { width: 100%; }
    /* CTA 按钮 — 初始态：白底黑字 */
    /* CTA 基础样式（仅 layout） */
    .nav-cta {
      padding: 9px 22px; border-radius: var(--radius);
      font-size: 13px !important; letter-spacing: 1px;
      transition: background var(--trans) !important;
    }
    .nav-cta::after { display: none !important; }
    .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
    .hamburger span { display: block; width: 24px; height: 2px; background: var(--black); border-radius: 2px; transition: var(--trans); }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    .mobile-menu { position: fixed; inset: 0; background: var(--bg-dark); z-index: 2000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 32px; transform: translateX(100%); transition: transform var(--trans); }
    .mobile-menu.open { transform: translateX(0); }
    .mobile-menu a { font-size: 24px; font-weight: 600; color: var(--white); letter-spacing: 3px; transition: color var(--trans); }
    .mobile-menu a:hover { color: var(--gold); }
    .mobile-close { position: absolute; top: 24px; right: 24px; font-size: 28px; color: var(--white); width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; }

    /* ============================================================
       图片占位符
    ============================================================ */
    .img-placeholder { position: relative; background: linear-gradient(135deg, #f5f0e8 0%, #ede4d4 50%, #e8d5b0 100%); border: 1.5px dashed var(--gold); border-radius: var(--radius-lg); overflow: hidden; display: flex; align-items: center; justify-content: center; }
    .img-placeholder::before { content: ''; position: absolute; inset: 0; background: repeating-linear-gradient(45deg, transparent, transparent 18px, rgba(201,169,110,0.07) 18px, rgba(201,169,110,0.07) 19px); }
    .placeholder-label { position: absolute; bottom: 12px; right: 14px; font-size: 11px; font-family: 'Outfit', sans-serif; color: var(--gold-dark); background: rgba(255,255,255,0.8); padding: 3px 8px; border-radius: 3px; z-index: 1; }
    .img-placeholder img { opacity: 0; position: relative; z-index: 2; transition: opacity 0.5s; }
    .img-placeholder img.loaded { opacity: 1; }

    /* ============================================================
       HERO
    ============================================================ */
    .hero {
      min-height: 60vh;
      display: flex;
      align-items: center;
      background: url('../assets/images/productsad.jpg') center top / cover no-repeat;
      padding: calc(72px + 80px) 0 00px;
    }
    .hero-inner { max-width: 1260px; margin: 0 auto; width: 100%; padding: 0 40px; }
    .product-breadcrumb {
      display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
      margin-bottom: 20px; font-size: 12px;
      color: rgb(255 255 255 / 54%);
    }
    .product-breadcrumb a { color: rgb(255 255 255 / 78%); transition: color var(--trans); }
    .product-breadcrumb a:hover { color: var(--gold); }
    .hero-badge { display: inline-flex; align-items: center; gap: 8px; font-size: 11px; font-weight: 600; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; margin-bottom: 16px; }
    .hero-badge::before { content: ''; width: 28px; height: 1px; background: var(--gold); }
    .hero-title {font-family: 'Noto Serif SC', serif;font-size: clamp(36px, 5vw, 52px);font-weight: 700;color: #ffffff;line-height: 1.2;margin-bottom: 16px;letter-spacing: -0.5px;}
    .hero-title span { color: var(--gold); }
    .hero-sub {font-size: 15px;color: #ffffffab;max-width: 560px;line-height: 1.8;}
    .hero-count { display: flex; gap: 48px; margin-top: 40px; }
    .hero-count-item { }
    .hero-count-num { font-family: 'Outfit', sans-serif; font-size: 36px; font-weight: 800; color: var(--gold); line-height: 1; }
    .hero-count-label {font-size: 12px;color: #ffffffab;margin-top: 4px;letter-spacing: 0.5px;}

    /* ============================================================
       筛选区
    ============================================================ */
    .filter-section { background: var(--white); border-bottom: 1px solid rgba(0,0,0,0.06); top: 72px; z-index: 100; }
    .filter-inner { max-width: 1260px; margin: 0 auto; padding: 28px 40px; }
    .filter-row { display: flex; align-items: flex-start; gap: 40px; flex-wrap: wrap; }
    .filter-group { }
    .filter-label { font-size: 11px; font-weight: 600; letter-spacing: 2px; color: var(--text-mute); text-transform: uppercase; margin-bottom: 10px; }
    .filter-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .filter-tag {
      padding: 8px 18px; background: var(--bg-warm);
      border: 1px solid rgba(0,0,0,0.06); border-radius: 20px;
      font-size: 13px; font-weight: 500; color: var(--text-body);
      cursor: pointer; transition: all var(--trans);
      user-select: none;
    }
    .filter-tag:hover { border-color: var(--gold); color: var(--gold-dark); background: rgba(201,169,110,0.06); }
    .filter-tag.active {
      background: var(--gold); border-color: var(--gold);
      color: var(--white);
    }
    a.filter-tag { display: inline-flex; align-items: center; justify-content: center; }
    .filter-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; padding-top: 22px; }
    .filter-reset {
      padding: 8px 18px; background: var(--bg-warm);
      border: 1px solid rgba(0,0,0,0.08); border-radius: 20px;
      font-size: 13px; color: var(--text-mute); cursor: pointer;
      transition: all var(--trans);
    }
    .filter-reset:hover { border-color: var(--gold); color: var(--gold-dark); }
    .filter-result { font-size: 13px; color: var(--text-mute); white-space: nowrap; }
    .filter-result strong { color: var(--gold-dark); font-weight: 600; }

    /* ============================================================
       产品网格
    ============================================================ */
    .products-section { background: var(--bg-warm); }
    .products-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .product-card {
      background: var(--white); border-radius: var(--radius-lg);
      overflow: hidden; border: 1px solid rgba(0,0,0,0.04);
      box-shadow: var(--shadow-sm);
      transition: transform var(--trans), box-shadow var(--trans);
      cursor: pointer;
    }
    .product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
    .product-card.hidden { display: none; }
    .product-img {
      aspect-ratio: 4/3.5; position: relative; overflow: hidden;
    }
    .product-badge {
      position: absolute; top: 14px; left: 14px;
      padding: 5px 12px; background: var(--gold);
      color: var(--white); font-size: 11px; font-weight: 600;
      letter-spacing: 0.5px; border-radius: 20px;
    }
    .product-body { padding: 24px; }
    .product-name { font-family: 'Noto Serif SC', serif; font-size: 18px; font-weight: 600; margin-bottom: 8px; }
    .product-desc { font-size: 13px; color: var(--text-mute); line-height: 1.7; margin-bottom: 16px; }
    .product-tags { display: flex; flex-wrap: wrap; gap: 6px; }
    .product-tag {
      padding: 4px 10px; background: var(--bg-warm);
      border: 1px solid var(--border); border-radius: 12px;
      font-size: 11px; color: var(--text-mute);
    }
    .product-tag.base-tag {
      background: rgba(201,169,110,0.1); border-color: rgba(201,169,110,0.25);
      color: var(--gold-dark);
    }
    .product-card-link {
      display: block;
      color: inherit;
      text-decoration: none;
      height: 100%;
    }
    .product-empty-media {
      background: linear-gradient(135deg, #f5f0e8 0%, #ede4d4 50%, #e8d5b0 100%);
      border: 1.5px dashed var(--gold);
      border-radius: var(--radius-lg);
    }

    /* ============================================================
       产品详情
    ============================================================ */
    .product-detail-shell {
      max-width: 1260px;
      margin: 0 auto;
      padding: 64px 40px 100px;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
      gap: 56px;
      align-items: start;
      background: var(--bg-warm);
    }
    .product-gallery-main {
      border-radius: 24px;
      overflow: hidden;
      background: var(--white);
      box-shadow: var(--shadow-md);
      aspect-ratio: 4 / 5;
    }
    .product-gallery-main img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .product-gallery-thumbs {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-top: 16px;
    }
    .product-gallery-thumb {
      border-radius: 16px;
      overflow: hidden;
      background: var(--white);
      border: 1px solid rgba(0,0,0,0.06);
      aspect-ratio: 1;
    }
    .product-gallery-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
    .product-detail-info {
      background: var(--white);
      border-radius: 24px;
      padding: 38px 34px;
      box-shadow: var(--shadow-sm);
    }
    .product-detail-meta {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 14px;
      background: rgba(201,169,110,0.08);
      border-radius: 999px;
      font-size: 12px;
      font-weight: 600;
      color: var(--gold-dark);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 18px;
    }
    .product-detail-title {
      font-family: 'Noto Serif SC', serif;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.18;
      margin-bottom: 14px;
      color: var(--black);
    }
    .product-detail-subtitle {
      font-size: 15px;
      line-height: 1.9;
      color: var(--text-mute);
      margin-bottom: 24px;
    }
    .product-detail-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 28px;
    }
    .product-detail-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
      margin-bottom: 28px;
    }
    .product-detail-item {
      padding: 16px 18px;
      background: var(--bg-warm);
      border-radius: 16px;
      border: 1px solid rgba(0,0,0,0.05);
    }
    .product-detail-item span {
      display: block;
      font-size: 11px;
      color: var(--text-mute);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .product-detail-item strong {
      display: block;
      font-size: 15px;
      color: var(--black);
      font-weight: 600;
    }
    .product-detail-rich {
      font-size: 15px;
      line-height: 1.9;
      color: var(--text-body);
    }
    .product-detail-rich h2,
    .product-detail-rich h3 {
      font-family: 'Noto Serif SC', serif;
      margin: 28px 0 14px;
      color: var(--black);
    }
    .product-detail-rich p { margin-bottom: 14px; }
    .product-detail-nav {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      margin-top: 32px;
    }
    .product-detail-nav a,
    .product-detail-nav div {
      padding: 18px 16px;
      background: var(--bg-warm);
      border-radius: 16px;
      border: 1px solid rgba(0,0,0,0.05);
      color: var(--text-body);
    }
    .product-detail-nav-label {
      display: block;
      font-size: 11px;
      color: var(--text-mute);
      letter-spacing: 1px;
      text-transform: uppercase;
      margin-bottom: 8px;
    }

    /* ============================================================
       空状态
    ============================================================ */
    .empty-state {
      grid-column: 1 / -1; text-align: center; padding: 80px 40px;
    }
    .empty-icon {
      width: 80px; height: 80px; margin: 0 auto 24px;
      background: rgba(201,169,110,0.1); border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
    }
    .empty-icon svg { width: 36px; height: 36px; color: var(--gold); }
    .empty-title { font-family: 'Noto Serif SC', serif; font-size: 22px; font-weight: 600; margin-bottom: 8px; }
    .empty-desc { font-size: 14px; color: var(--text-mute); }

    /* ============================================================
       色系预览条
    ============================================================ */
    .color-bar {
      display: flex; height: 6px; border-radius: 3px; overflow: hidden; gap: 3px;
    }
    .color-bar span { flex: 1; border-radius: 3px; }

    /* ============================================================
       全部产品
    ============================================================ */
    .all-section { background: var(--white); }
    .sec-header { text-align: center; margin-bottom: 56px; }
    .sec-eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 11px; font-weight: 600; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
    .sec-eyebrow::before, .sec-eyebrow::after { content: ''; width: 24px; height: 1px; background: var(--gold); }
    .sec-title { font-family: 'Noto Serif SC', serif; font-size: clamp(28px, 4vw, 40px); font-weight: 700; color: var(--black); line-height: 1.2; margin-bottom: 14px; }
    .sec-desc { font-size: 15px; color: var(--text-mute); max-width: 560px; margin: 0 auto; line-height: 1.8; }

    /* ============================================================
       CTA
    ============================================================ */
    .cta { background: var(--bg-warm); border-top: 1px solid rgba(0,0,0,0.06); }
    .cta-inner { max-width: 640px; margin: 0 auto; text-align: center; }
    .cta-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 40px; }
    .form-input { padding: 13px 18px; background: var(--white); border: 1px solid rgba(0,0,0,0.08); border-radius: var(--radius); font-size: 14px; font-family: inherit; color: var(--black); transition: all var(--trans); outline: none; }
    .form-input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,169,110,0.12); }
    .form-input.full { grid-column: 1 / -1; }
    .form-submit { grid-column: 1 / -1; padding: 14px; background: var(--black); color: var(--white); font-size: 14px; font-weight: 600; font-family: inherit; border-radius: var(--radius); letter-spacing: 1px; transition: background var(--trans); cursor: pointer; }
    .form-submit:hover { background: var(--gold); }

    /* ============================================================
       FOOTER
    ============================================================ */
    .footer { background: var(--black); padding: 56px 0 40px; }
    .footer-inner { max-width: 1260px; margin: 0 auto; padding: 0 40px; }
    .footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 60px; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,0.06); margin-bottom: 28px; }
    .footer-brand p { font-size: 12px; color: rgba(255,255,255,0.28); line-height: 1.9; margin-top: 10px; }
    .footer-col h5 { font-size: 11px; font-weight: 600; letter-spacing: 2px; color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
    .footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.35); margin-bottom: 10px; transition: color var(--trans); }
    .footer-col a:hover { color: var(--gold-light); }
    .footer-bottom { display: flex; justify-content: space-between; align-items: center; }
    .footer-copy { font-size: 11px; color: rgba(255,255,255,0.2); }

    /* ============================================================
       动画
    ============================================================ */
    .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
    .reveal.visible { opacity: 1; transform: none; }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }

    /* ============================================================
       响应式
    ============================================================ */
    @media (max-width: 1024px) {
      .products-grid { grid-template-columns: repeat(2, 1fr); }
      .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
      .filter-row { gap: 24px; }
      .product-detail-shell {
        grid-template-columns: 1fr;
        gap: 28px;
      }
    }
    @media (max-width: 768px) {
      .section { padding: 72px 0; }
      .nav-inner { padding: 0 20px; }
      .nav-links, .nav-cta { display: none; }
      .hamburger { display: flex; }
      .hero-count { gap: 28px; }
      .hero-count-num { font-size: 28px; }
      .products-grid { grid-template-columns: 1fr; gap: 20px; }
      .filter-section {
        position: static;
        top: auto;
      }
      .filter-inner { padding: 16px 20px; }
      .filter-row { gap: 14px; }
      .filter-label { margin-bottom: 6px; font-size: 10px; }
      .filter-tags { gap: 6px; }
      .filter-tag { padding: 7px 14px; font-size: 12px; }
      .filter-actions {
        width: 100%;
        margin-left: 0;
        padding-top: 10px;
        justify-content: space-between;
      }
      .filter-reset { padding: 7px 14px; font-size: 12px; }
      .filter-result { font-size: 12px; }
      .cta-form { grid-template-columns: 1fr; }
      .footer-top { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
      .product-detail-shell {
        padding: 40px 20px 72px;
      }
      .product-detail-info {
        padding: 28px 22px;
      }
      .product-detail-grid,
      .product-detail-nav {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 480px) {
      .filter-group { width: 100%; }
      .filter-inner { padding: 14px 16px; }
      .filter-actions { width: 100%; margin-left: 0; justify-content: space-between; }
      .hero-count { flex-wrap: wrap; }
    }