:root {
      --color-primary: #1A1A1A;
      --color-secondary: #888888;
      --color-accent: #C9A962;
      --color-accent-light: #E5D4A1;
      --color-background: #0D0D0D;
      --color-surface: #1A1A1A;
      --color-text: #FFFFFF;
      --color-border: rgba(201,169,98,0.2);
      --shadow-sm: 0 2px 20px rgba(0,0,0,0.5);
      --shadow-md: 0 8px 40px rgba(0,0,0,0.6);
      --radius-sm: 2px;
      --radius-md: 4px;
      --radius-lg: 8px;
      --transition: cubic-bezier(0.4, 0, 0.2, 1);
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; overflow-x: hidden; }
    body { font-family: 'Noto Sans SC', sans-serif; background: var(--color-background); color: var(--color-text); line-height: 1.6; overflow-x: hidden; padding-top: calc(64px + env(safe-area-inset-top, 0px)); }

    /* 高级质感主题导航样式 */
    .navbar { border-bottom: 1px solid var(--color-border); }
    .logo { font-family: 'Cormorant Garamond', serif; color: #FFFFFF; letter-spacing: 0.15em; }
    .menu-overlay { background: rgba(0,0,0,0.8); }

    .hero { margin-top: 0; position: relative; overflow: hidden; }
    .carousel { position: relative; width: 100%; }
    .carousel-track { display: flex; transition: transform 0.6s var(--transition); }
    .carousel-slide { min-width: 100%; aspect-ratio: 3/2; display: flex; align-items: center; justify-content: center; padding: 40px 20px; text-align: center; background: linear-gradient(135deg, #1A1A1A 0%, #151515 100%); }
    .slide-content { max-width: 500px; }
    .slide-tag { display: inline-block; padding: 6px 20px; border: 1px solid var(--color-accent); color: var(--color-accent); font-size: 0.75rem; letter-spacing: 0.15em; margin-bottom: 20px; }
    .slide-title { font-family: 'Cormorant Garamond', serif; font-size: clamp(1.75rem, 5vw, 2.5rem); font-weight: 500; line-height: 1.3; margin-bottom: 16px; letter-spacing: 0.05em; }
    .slide-desc { color: var(--color-secondary); font-size: 1rem; margin-bottom: 28px; letter-spacing: 0.02em; }
    .slide-cta { display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; background: transparent; color: var(--color-accent); text-decoration: none; font-weight: 500; border: 1px solid var(--color-accent); transition: all 0.3s var(--transition); letter-spacing: 0.1em; }
    .slide-cta:hover { background: var(--color-accent); color: var(--color-primary); }
    .carousel-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; background: transparent; border: 1px solid var(--color-border); cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s var(--transition); z-index: 10; color: var(--color-secondary); }
    .carousel-arrow:hover { border-color: var(--color-accent); color: var(--color-accent); }
    .carousel-arrow.prev { left: 24px; }
    .carousel-arrow.next { right: 24px; }
    .carousel-dots { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 10; }
    .carousel-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border); border: none; cursor: pointer; transition: all 0.3s var(--transition); }
    .carousel-dot.active { background: var(--color-accent); }

    .section { padding: 80px 24px; max-width: 1200px; margin: 0 auto; }
    .section-header { text-align: center; margin-bottom: 60px; }
    .section-title { font-family: 'Cormorant Garamond', serif; font-size: clamp(1.5rem, 4vw, 2rem); font-weight: 500; margin-bottom: 12px; letter-spacing: 0.1em; }
    .section-subtitle { color: var(--color-secondary); font-size: 0.9rem; letter-spacing: 0.05em; }
    .section-title::after { content: ''; display: block; width: 40px; height: 1px; background: var(--color-accent); margin: 24px auto 0; }

    .product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .product-card { background: var(--color-surface); border-radius: var(--radius-md); overflow: hidden; transition: all 0.4s var(--transition); text-decoration: none; color: inherit; border: 1px solid var(--color-border); }
    .product-card:hover { border-color: var(--color-accent); transform: translateY(-8px); }
    .product-img { aspect-ratio: 1; background: linear-gradient(135deg, #1A1A1A, #252525); display: flex; align-items: center; justify-content: center; font-size: 3rem; }
    .product-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
    .product-info { padding: 24px; border-top: 1px solid var(--color-border); }
    .product-name { font-family: 'Cormorant Garamond', serif; font-weight: 500; font-size: 1.1rem; margin-bottom: 12px; letter-spacing: 0.02em; }
    .product-price { font-family: 'Cormorant Garamond', serif; font-size: 1.25rem; color: var(--color-accent); letter-spacing: 0.05em; }

    .footer { background: #050505; color: var(--color-secondary); padding: 60px 24px 40px; }
    .footer-content { max-width: 800px; margin: 0 auto; text-align: center; }
    .footer-logo { font-family: 'Cormorant Garamond', serif; font-size: 1.5rem; font-weight: 500; color: #FFFFFF; margin-bottom: 32px; letter-spacing: 0.15em; }
    .footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 32px; margin-bottom: 40px; }
    .footer-links a { color: var(--color-secondary); text-decoration: none; font-size: 0.85rem; letter-spacing: 0.1em; }
    .footer-links a:hover { color: var(--color-accent); }
    .footer-divider { width: 40px; height: 1px; background: var(--color-border); margin: 0 auto 24px; }
    .footer-copy { font-size: 0.8rem; opacity: 0.5; letter-spacing: 0.05em; }
    .footer-support { font-size: 0.8rem; opacity: 0.5; letter-spacing: 0.05em; }
    .footer-support a { color: inherit; text-decoration: none; }
    .footer-support a:hover { text-decoration: underline; }

    .bottom-nav { display: none; position: fixed; bottom: 0; left: 0; width: 100%; height: 60px; background: #0A0A0A; border-top: 1px solid var(--color-border); z-index: 1000; padding-bottom: env(safe-area-inset-bottom, 0); }
    .bottom-nav-inner { display: flex; justify-content: space-around; align-items: center; height: 100%; max-width: 500px; margin: 0 auto; }
    .bottom-nav-item { display: flex; flex-direction: column; align-items: center; gap: 4px; color: var(--color-secondary); text-decoration: none; font-size: 10px; transition: color 0.3s; background: none; border: none; cursor: pointer; padding: 8px 16px; letter-spacing: 0.05em; }
    .bottom-nav-item.active, .bottom-nav-item:hover { color: var(--color-accent); }
    .bottom-nav-item .nav-icon { font-size: 18px; }
    .popover-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.9); z-index: 2000; opacity: 0; visibility: hidden; transition: all 0.3s; }
    .popover-overlay.show { opacity: 1; visibility: visible; }
    .popover-box { position: fixed; bottom: 70px; left: 50%; transform: translateX(-50%) translateY(20px); background: #0A0A0A; border-radius: var(--radius-md); padding: 24px; z-index: 2001; opacity: 0; visibility: hidden; transition: all 0.3s; text-align: center; border: 1px solid var(--color-border); }
    .popover-box.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
    .popover-qr { width: 160px; height: 160px; background: var(--color-surface); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 60px; margin-bottom: 12px; border: 1px solid var(--color-border); }
    .popover-title { font-size: 14px; font-weight: 500; color: var(--color-accent); }
    .popover-tip { font-size: 12px; color: var(--color-secondary); margin-top: 4px; }
    .qrcode-wrapper img { max-width: 100%; max-height: 100%; width: auto; height: auto; display: block; object-fit: contain; }
    .contact-item { display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--color-secondary); font-size: 0.95rem; }
    #addressItem { cursor: pointer; transition: opacity 0.2s; }
    #addressItem:hover { opacity: 0.7; }
    #addressItem:active { opacity: 0.5; }
    @media (min-width: 768px) { .product-grid { grid-template-columns: repeat(4, 1fr); gap: 32px; } .section { padding: 100px 48px; } .carousel-slide { aspect-ratio: 16/8; } }
    @media (max-width: 768px) { .bottom-nav { display: block; } .footer { display: none; } body { padding-bottom: 60px; } .popover-box { bottom: 130px; } .contact-section { padding-bottom: 100px; } }

    /* ===== 企业简介 ===== */
    .about-section {
      display: flex;
      align-items: center;
      gap: 60px;
      max-width: 1200px;
      margin: 0 auto;
      padding: 80px 48px;
    }
    .about-container {
      flex: 1;
    }
    .about-badge {
      display: inline-block;
      padding: 6px 20px;
      border: 1px solid var(--color-accent);
      color: var(--color-accent);
      font-size: 0.75rem;
      letter-spacing: 0.15em;
      margin-bottom: 20px;
    }
    .about-title {
      font-family: 'Cormorant Garamond', serif;
      font-size: clamp(1.75rem, 4vw, 2.5rem);
      font-weight: 500;
      margin-bottom: 20px;
      letter-spacing: 0.05em;
    }
    .about-text {
      color: var(--color-secondary);
      font-size: 1rem;
      line-height: 1.8;
      margin-bottom: 32px;
      letter-spacing: 0.02em;
    }
    .about-highlights {
      display: flex;
      gap: 32px;
      margin-bottom: 32px;
    }
    .highlight-item {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .highlight-icon {
      color: var(--color-accent);
    }
    .highlight-label {
      font-size: 0.9rem;
      font-weight: 500;
      letter-spacing: 0.05em;
    }
    .about-cta {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--color-accent);
      font-weight: 500;
      text-decoration: none;
      transition: gap 0.3s;
      letter-spacing: 0.1em;
    }
    .about-cta:hover {
      gap: 12px;
    }
    .about-image {
      width: 300px;
      height: 300px;
      background: linear-gradient(135deg, #1A1A1A, #252525);
      border-radius: var(--radius-lg);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 8rem;
      flex-shrink: 0;
      border: 1px solid var(--color-border);
    }

    @media (max-width: 900px) {
      .about-section {
        flex-direction: column;
        padding: 60px 24px;
        text-align: center;
      }
      .about-image {
        width: 200px;
        height: 200px;
        font-size: 5rem;
      }
      .about-highlights {
        justify-content: center;
      }
    }
/* 底部导航自定义图片图标（后台可配置） */
.bottom-nav-item .nav-icon-img { width: 24px; height: 24px; object-fit: contain; vertical-align: middle; }