/* ============================================================ 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; }

    /* ============================================================ 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-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; margin-left: 10px; }
    .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%; }
    .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; }
    .nav-header .nav-links .nav-cta { background: var(--black) !important; color: var(--white) !important; }
    .nav-header .nav-links .nav-cta:hover { background: var(--gold) !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-ph {
      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-ph::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);
    }
    .img-ph-label {
      position: absolute; bottom: 10px; right: 12px;
      font-size: 11px; color: var(--gold-dark);
      background: rgba(255,255,255,0.82); padding: 2px 8px; border-radius: 3px; z-index: 2;
    }
    .img-ph img { opacity: 0; position: relative; z-index: 2; transition: opacity 0.5s; }
    .img-ph img.loaded { opacity: 1; }

    /* ============================================================ HERO ============================================================ */
    .hero {
      min-height: 60vh; display: flex; align-items: center;
      background: url('../assets/images/anliad.jpg') center center / cover no-repeat; position: relative; overflow: hidden; padding-top: 72px;
    }
    .hero::before {
      content: ''; position: absolute; inset: 0;
      background:
        rgba(0,0,0,0.65),
    }
    .hero-inner { max-width: 1260px; margin: 0 auto; width: 100%; padding: 80px 40px 60px; position: relative; z-index: 1; }
    .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: var(--white); line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.5px; }
    .hero-title span { color: var(--gold); }
    .hero-sub { font-size: 15px; color: rgba(255,255,255,0.45); max-width: 520px; line-height: 1.8; }

    /* ============================================================ TAB 导航 ============================================================ */
    .tabs-bar {
      background: var(--white);
      border-bottom: 1px solid rgba(0,0,0,0.07);
      position: sticky; top: 72px; z-index: 100;
    }
    .tabs-inner {
      max-width: 1260px; margin: 0 auto; padding: 0 40px;
      display: flex; align-items: center; gap: 0; overflow-x: auto;
      scrollbar-width: none;
    }
    .tabs-inner::-webkit-scrollbar { display: none; }
    .tab-btn {
      flex-shrink: 0; padding: 20px 28px;
      font-size: 14px; font-weight: 500; letter-spacing: 0.5px;
      color: var(--text-mute); cursor: pointer;
      position: relative; transition: color var(--trans);
      white-space: nowrap;
    }
    .tab-btn::after {
      content: ''; position: absolute; bottom: 0; left: 28px; right: 28px;
      height: 2px; background: var(--gold);
      transform: scaleX(0); transition: transform var(--trans);
    }
    .tab-btn:hover { color: var(--text-body); }
    .tab-btn.active { color: var(--gold-dark); font-weight: 600; }
    .tab-btn.active::after { transform: scaleX(1); }

    /* ============================================================ 通用 SECTION ============================================================ */
    .tab-section { display: none; padding: 72px 0 100px; background: var(--bg-warm); }
    .tab-section.active { display: block; }
    .sec-head { margin-bottom: 52px; }
    .sec-label { font-size: 11px; font-weight: 600; letter-spacing: 3px; color: var(--gold); text-transform: uppercase; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
    .sec-label::before { content: ''; width: 24px; height: 1px; background: var(--gold); }
    .sec-title { font-family: 'Noto Serif SC', serif; font-size: clamp(26px, 3vw, 36px); font-weight: 700; color: var(--black); line-height: 1.3; margin-bottom: 12px; }
    .sec-desc { font-size: 15px; color: var(--text-mute); max-width: 600px; line-height: 1.8; }

    /* ============================================================ 展厅 — 大图主图 + 副图网格 ============================================================ */
    .showroom-main { margin-bottom: 32px; }
    .showroom-main .img-ph { width: 100%; height: 560px; }
    .showroom-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .showroom-grid .img-ph { height: 260px; }

    /* ============================================================ 后台案例动态画廊 ============================================================ */
    .case-gallery {
      display: grid;
      gap: 18px;
    }
    .case-gallery-item {
      position: relative;
      min-height: 200px;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--black);
      box-shadow: var(--shadow-sm);
      transition: transform var(--trans), box-shadow var(--trans);
    }
    .case-gallery-item:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-lg);
    }
    .case-gallery-item .img-ph {
      width: 100%;
      height: 100%;
      min-height: inherit;
      border: none;
      border-radius: 0;
    }
    .case-gallery-item::after {
      content: "";
      position: absolute;
      inset: 0;
      z-index: 2;
      background: linear-gradient(180deg, rgba(14,14,12,0.02) 0%, rgba(14,14,12,0.18) 42%, rgba(14,14,12,0.82) 100%);
      pointer-events: none;
    }
    .case-gallery-copy {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 20px;
      z-index: 3;
      color: var(--white);
    }
    .case-gallery-index {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 8px;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 2px;
      color: var(--gold-light);
    }
    .case-gallery-index::after {
      content: "";
      width: 22px;
      height: 1px;
      background: rgba(201,169,110,0.8);
    }
    .case-gallery-copy h3 {
      font-family: 'Noto Serif SC', serif;
      font-size: 20px;
      line-height: 1.35;
      margin-bottom: 8px;
      color: var(--white);
    }
    .case-gallery-copy p {
      font-size: 13px;
      line-height: 1.75;
      color: rgba(255,255,255,0.72);
    }
    .case-gallery-tags {
      margin-top: 10px;
      font-size: 12px;
      color: var(--gold-light);
    }
    .cms-empty {
      padding: 36px;
      margin-top: 24px;
      border: 1px dashed var(--border);
      border-radius: var(--radius-lg);
      background: rgba(255,255,255,0.62);
      color: var(--text-mute);
      text-align: center;
    }
    .case-gallery-showroom {
      grid-template-columns: repeat(4, 1fr);
      grid-auto-rows: 240px;
    }
    .case-gallery-showroom .case-gallery-item:nth-child(1) {
      grid-column: span 4;
      grid-row: span 2;
    }
    .case-gallery-showroom .case-gallery-item:nth-child(2),
    .case-gallery-showroom .case-gallery-item:nth-child(5) {
      grid-column: span 2;
    }
    .case-gallery-expo {
      grid-template-columns: repeat(4, 1fr);
      grid-auto-rows: 230px;
    }
    .case-gallery-expo .case-gallery-item:nth-child(1),
    .case-gallery-expo .case-gallery-item:nth-child(2) {
      grid-column: span 2;
      grid-row: span 2;
    }
    .case-gallery-expo .case-gallery-item:nth-child(7) {
      grid-column: span 4;
      grid-row: span 2;
    }
    .case-gallery-design {
      grid-template-columns: repeat(3, 1fr);
      grid-auto-rows: 180px;
    }
    .case-gallery-design .case-gallery-item:nth-child(3n + 1) {
      grid-row: span 3;
    }
    .case-gallery-design .case-gallery-item:nth-child(3n + 2) {
      grid-row: span 2;
    }
    .case-gallery-design .case-gallery-item:nth-child(3n) {
      grid-row: span 4;
    }
    .case-gallery-pairing {
      grid-template-columns: repeat(3, 1fr);
      grid-auto-rows: 220px;
    }
    .case-gallery-pairing .case-gallery-item:nth-child(1),
    .case-gallery-pairing .case-gallery-item:nth-child(6n) {
      grid-column: span 2;
      grid-row: span 2;
    }
    .case-gallery-pairing .case-gallery-item:nth-child(4n) {
      grid-row: span 2;
    }

    /* ============================================================ 展会 — 双列大图 + 四宫格 ============================================================ */
    .expo-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
    .expo-hero .img-ph { height: 400px; }
    .expo-hero .img-ph:first-child { grid-column: 1 / 2; }
    .expo-sub { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .expo-sub .img-ph { height: 220px; }

    /* ============================================================ 设计周 — 瀑布流风格三列 ============================================================ */
    .design-week-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .design-week-grid .img-ph.tall { height: 420px; }
    .design-week-grid .img-ph.medium { height: 300px; }
    .design-week-grid .img-ph.short { height: 220px; }

    /* ============================================================ 花色搭配 — 宽窄穿插 ============================================================ */
    .pairing-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; margin-bottom: 64px; }
    .pairing-intro .img-ph { height: 480px; }
    .pairing-text h3 { font-family: 'Noto Serif SC', serif; font-size: 24px; font-weight: 700; color: var(--black); margin-bottom: 16px; line-height: 1.4; }
    .pairing-text p { font-size: 15px; color: var(--text-mute); line-height: 1.9; margin-bottom: 20px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
    .tag { padding: 6px 16px; border: 1px solid var(--border); border-radius: 20px; font-size: 12px; font-weight: 500; color: var(--gold-dark); letter-spacing: 0.5px; }
    .pairing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .pairing-card .img-ph { height: 340px; margin-bottom: 16px; }
    .pairing-card-title { font-size: 16px; font-weight: 600; color: var(--black); margin-bottom: 4px; }
    .pairing-card-sub { font-size: 13px; color: var(--text-mute); }
    .pairing-card-tags { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }
    .pairing-card-tag { padding: 4px 10px; background: rgba(201,169,110,0.1); border-radius: 12px; font-size: 11px; color: var(--gold-dark); }

    /* ============================================================ 达人案例 — 卡片列表 ============================================================ */
    .kol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
    .kol-card { background: var(--white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform var(--trans), box-shadow var(--trans); }
    .kol-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
    .kol-card .img-ph { height: 280px; border-radius: 0; border: none; }
    .kol-card-body { padding: 22px 24px 24px; }
    .kol-meta { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
    .kol-avatar { width: 36px; height: 36px; border-radius: 50%; background: linear-gradient(135deg, var(--gold-light), var(--gold)); flex-shrink: 0; overflow: hidden; }
    .kol-name { font-size: 14px; font-weight: 600; color: var(--black); }
    .kol-platform { font-size: 11px; color: var(--text-mute); margin-top: 1px; }
    .kol-title { font-size: 16px; font-weight: 600; color: var(--black); line-height: 1.4; margin-bottom: 8px; }
    .kol-desc { font-size: 13px; color: var(--text-mute); line-height: 1.7; margin-bottom: 14px; }
    .kol-tags { display: flex; gap: 6px; flex-wrap: wrap; }
    .kol-tag { padding: 4px 10px; background: var(--bg-warm); border-radius: 12px; font-size: 11px; color: var(--text-mute); }
    .kol-likes { margin-top: 14px; padding-top: 14px; border-top: 1px solid rgba(0,0,0,0.06); font-size: 12px; color: var(--text-mute); display: flex; gap: 16px; }
    .kol-likes span { display: flex; align-items: center; gap: 4px; }

    /* ============================================================ CTA ============================================================ */
    .cta-section { background: var(--black); padding: 80px 0; text-align: center; }
    .cta-label { font-size: 11px; letter-spacing: 3px; color: var(--gold); font-weight: 600; text-transform: uppercase; margin-bottom: 16px; }
    .cta-title { font-family: 'Noto Serif SC', serif; font-size: clamp(24px, 3.5vw, 38px); color: var(--white); font-weight: 700; margin-bottom: 14px; }
    .cta-sub { font-size: 15px; color: rgba(255,255,255,0.45); margin-bottom: 36px; }
    .cta-btn { display: inline-block; padding: 15px 40px; background: var(--gold); color: var(--white); border-radius: var(--radius); font-size: 14px; font-weight: 600; letter-spacing: 1.5px; transition: background var(--trans); }
    .cta-btn:hover { background: var(--gold-dark); }

    /* ============================================================ FOOTER ============================================================ */
    .footer { background: var(--bg-dark); padding: 60px 0 32px; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 40px; }
    .footer-brand .logo-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
    .footer-brand .logo-vv-sm { width: 36px; height: 36px; background: var(--gold); color: var(--black); border-radius: 4px; display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 800; }
    .footer-brand-name { font-size: 15px; font-weight: 700; color: var(--white); letter-spacing: 1px; }
    .footer-brand-name em { display: block; font-style: normal; font-size: 11px; color: var(--gold); letter-spacing: 2px; margin-top: 2px; }
    .footer-desc { font-size: 13px; color: rgba(255,255,255,0.35); line-height: 1.8; max-width: 260px; }
    .footer-col h5 { font-size: 12px; font-weight: 600; letter-spacing: 2px; color: rgba(255,255,255,0.4); text-transform: uppercase; margin-bottom: 16px; }
    .footer-col a { display: block; font-size: 13px; color: rgba(255,255,255,0.55); margin-bottom: 10px; transition: color var(--trans); }
    .footer-col a:hover { color: var(--gold); }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; }
    .footer-copy { font-size: 12px; color: rgba(255,255,255,0.25); }

    /* ============================================================ 响应式 ============================================================ */
    @media (max-width: 900px) {
      .container, .nav-inner, .hero-inner, .tabs-inner { padding-left: 20px; padding-right: 20px; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .case-gallery-showroom,
      .case-gallery-expo,
      .case-gallery-design,
      .case-gallery-pairing {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: 220px;
      }
      .case-gallery-showroom .case-gallery-item:nth-child(n),
      .case-gallery-expo .case-gallery-item:nth-child(n),
      .case-gallery-design .case-gallery-item:nth-child(n),
      .case-gallery-pairing .case-gallery-item:nth-child(n) {
        grid-column: span 1;
        grid-row: span 1;
      }
      .case-gallery-showroom .case-gallery-item:nth-child(1),
      .case-gallery-expo .case-gallery-item:nth-child(1),
      .case-gallery-pairing .case-gallery-item:nth-child(1) {
        grid-column: span 2;
        grid-row: span 2;
      }
      .showroom-grid, .expo-sub, .design-week-grid, .pairing-grid, .kol-grid { grid-template-columns: 1fr 1fr; }
      .expo-hero { grid-template-columns: 1fr; }
      .pairing-intro { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 600px) {
      .case-gallery-showroom,
      .case-gallery-expo,
      .case-gallery-design,
      .case-gallery-pairing {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
      }
      .case-gallery-showroom .case-gallery-item:nth-child(n),
      .case-gallery-expo .case-gallery-item:nth-child(n),
      .case-gallery-design .case-gallery-item:nth-child(n),
      .case-gallery-pairing .case-gallery-item:nth-child(n) {
        grid-column: auto;
        grid-row: auto;
      }
      .case-gallery-item {
        min-height: 320px;
      }
      .showroom-grid, .expo-sub, .pairing-grid, .kol-grid { grid-template-columns: 1fr; }
      .design-week-grid { grid-template-columns: 1fr; }
      .tab-btn { padding: 16px 18px; font-size: 13px; }
      .footer-grid { grid-template-columns: 1fr; }
    }