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

    /* ============================================================ HERO ============================================================ */
    .hero {
      min-height: 52vh; display: flex; align-items: center;
      background: var(--black); position: relative; overflow: hidden; padding-top: 72px;
    }
    .hero::before {
      content: ''; position: absolute; inset: 0;
      background: radial-gradient(ellipse 60% 80% at 55% 50%, rgba(201,169,110,0.07) 0%, transparent 65%),
        repeating-linear-gradient(0deg, transparent, transparent 79px, rgba(201,169,110,0.03) 80px);
    }
    .hero-inner { max-width: 1260px; margin: 0 auto; width: 100%; padding: 80px 40px 50px; 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(34px, 5vw, 50px); font-weight: 700; color: var(--white); line-height: 1.2; margin-bottom: 14px; }
    .hero-title span { color: var(--gold); }
    .hero-sub { font-size: 15px; color: rgba(255,255,255,0.45); max-width: 520px; line-height: 1.9; }

    /* ============================================================ 通用 ============================================================ */
    .section { padding: 20px 0; }
    .section-warm { background: var(--bg-warm); }
    .section-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; }
    .section-label::before { content: ''; width: 24px; height: 1px; background: var(--gold); }
    .section-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; }
    .section-desc { font-size: 15px; color: var(--text-mute); max-width: 600px; line-height: 1.8; }
    .sec-head { margin-bottom: 48px; }
    .sec-head-center { text-align: center; margin-bottom: 48px; }
    .sec-head-center .section-desc { margin: 0 auto; }

    /* ============================================================ 顶部大TAB ============================================================ */
    .top-tabs { background: var(--white); border-bottom: 1px solid rgba(0,0,0,0.07); position: sticky; top: 72px; z-index: 100; }
    .top-tabs-inner { max-width: 1260px; margin: 0 auto; padding: 0 40px; display: flex; align-items: center; gap: 0; }
    .top-tab { padding: 22px 32px; font-size: 15px; font-weight: 600; color: var(--text-mute); cursor: pointer; position: relative; transition: color var(--trans); }
    .top-tab::after { content: ''; position: absolute; bottom: 0; left: 32px; right: 32px; height: 2px; background: var(--gold); transform: scaleX(0); transition: transform var(--trans); }
    .top-tab:hover { color: var(--text-body); }
    .top-tab.active { color: var(--gold-dark); }
    .top-tab.active::after { transform: scaleX(1); }

    /* ============================================================ 搜索栏 ============================================================ */
    .search-bar { display: flex; gap: 12px; margin-bottom: 40px; align-items: center; }
    .search-input-wrap { flex: 1; position: relative; }
    .search-input-wrap input { width: 100%; padding: 12px 20px 12px 44px; border: 1px solid rgba(0,0,0,0.1); border-radius: 40px; font-size: 14px; font-family: inherit; color: var(--black); background: var(--white); outline: none; transition: border-color var(--trans), box-shadow var(--trans); }
    .search-input-wrap input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(201,169,110,0.12); }
    .search-input-wrap::before { content: '🔍'; position: absolute; left: 16px; top: 50%; transform: translateY(-50%); font-size: 14px; }
    .search-tags { display: flex; gap: 8px; flex-wrap: wrap; }
    .search-tag { padding: 6px 16px; border: 1px solid rgba(0,0,0,0.1); border-radius: 20px; font-size: 12px; color: var(--text-mute); cursor: pointer; transition: all var(--trans); }
    .search-tag:hover, .search-tag.active { background: var(--black); color: var(--white); border-color: var(--black); }

    /* ============================================================ 新闻列表 — 左文右图布局 ============================================================ */
    .news-panel { display: none; }
    .news-panel.active { display: block; }
    .news-list { display: flex; flex-direction: column; gap: 0; }
    .news-item { display: grid; grid-template-columns: 1fr 360px; gap: 40px; padding: 36px 0; border-bottom: 1px solid rgba(0,0,0,0.06); align-items: center; cursor: pointer; transition: background var(--trans); }
    .news-item:hover { background: rgba(201,169,110,0.03); margin: 0 -20px; padding-left: 20px; padding-right: 20px; border-radius: var(--radius); }
    .news-item:last-child { border-bottom: none; }
    .news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
    .news-tag { padding: 3px 10px; background: rgba(201,169,110,0.12); border-radius: 12px; font-size: 11px; font-weight: 600; color: var(--gold-dark); letter-spacing: 0.5px; }
    .news-tag.red { background: rgba(220,38,38,0.08); color: #dc2626; }
    .news-tag.green { background: rgba(22,163,74,0.08); color: #16a34a; }
    .news-date { font-size: 12px; color: var(--text-mute); }
    .news-title { font-family: 'Noto Serif SC', serif; font-size: 20px; font-weight: 700; color: var(--black); line-height: 1.4; margin-bottom: 10px; transition: color var(--trans); }
    .news-item:hover .news-title { color: var(--gold-dark); }
    .news-excerpt { font-size: 14px; color: var(--text-mute); line-height: 1.8; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .news-footer { display: flex; align-items: center; gap: 16px; }
    .news-stat { font-size: 12px; color: var(--text-mute); display: flex; align-items: center; gap: 4px; }
    .news-img-wrap { border-radius: var(--radius-lg); overflow: hidden; height: 240px; }
    .news-img { width: 100%; height: 100%; transition: transform 0.5s cubic-bezier(0.4,0,0.2,1); }
    .news-item:hover .news-img { transform: scale(1.04); }
    .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; }

    /* ============================================================ 热门文章侧栏 ============================================================ */
    .news-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
    .news-main {}
    .sidebar {}
    .sidebar-card { background: var(--white); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); }
    .sidebar-card h4 { font-family: 'Noto Serif SC', serif; font-size: 15px; font-weight: 700; color: var(--black); margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid rgba(0,0,0,0.06); display: flex; align-items: center; gap: 8px; }
    .sidebar-card h4::before { content: ''; width: 3px; height: 16px; background: var(--gold); border-radius: 2px; }
    .hot-list { display: flex; flex-direction: column; gap: 14px; }
    .hot-item { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
    .hot-num { width: 24px; height: 24px; border-radius: 4px; background: var(--bg-warm); display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 800; color: var(--gold-dark); flex-shrink: 0; }
    .hot-num.top { background: var(--gold); color: var(--white); }
    .hot-item-text { flex: 1; }
    .hot-item-title { font-size: 13px; font-weight: 600; color: var(--black); line-height: 1.5; transition: color var(--trans); }
    .hot-item:hover .hot-item-title { color: var(--gold-dark); }
    .hot-item-date { font-size: 11px; color: var(--text-mute); margin-top: 3px; }

    /* 标签云 */
    .tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
    .cloud-tag { padding: 6px 14px; border: 1px solid rgba(0,0,0,0.1); border-radius: 20px; font-size: 12px; color: var(--text-mute); transition: all var(--trans); cursor: pointer; }
    .cloud-tag:hover { background: var(--gold); color: var(--white); border-color: var(--gold); }

    /* ============================================================ 问答社区 ============================================================ */
    .qa-panel { display: none; }
    .qa-panel.active { display: block; }
    .qa-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
    .qa-filters { display: flex; gap: 8px; margin-bottom: 36px; flex-wrap: wrap; }
    .qa-filter { padding: 8px 18px; border: 1px solid rgba(0,0,0,0.1); border-radius: 20px; font-size: 13px; color: var(--text-mute); cursor: pointer; transition: all var(--trans); }
    .qa-filter:hover { color: var(--text-body); border-color: var(--text-mute); }
    .qa-filter.active { background: var(--black); color: var(--white); border-color: var(--black); }
    .qa-list { display: flex; flex-direction: column; gap: 0; }
    .qa-item { padding: 8px 0; border-bottom: 1px solid rgba(0,0,0,0.06); cursor: pointer; transition: background var(--trans); }
    .qa-item:hover { background: rgba(201,169,110,0.03); margin: 0 -20px; padding-left: 20px; padding-right: 20px; border-radius: var(--radius); }
    .qa-item:last-child { border-bottom: none; }
    .qa-q { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
    .qa-badge { width: 28px; height: 28px; border-radius: 6px; background: rgba(201,169,110,0.12); color: var(--gold-dark); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .qa-q-text { font-family: 'Noto Serif SC', serif; font-size: 17px; font-weight: 600; color: var(--black); line-height: 1.5; transition: color var(--trans); }
    .qa-item:hover .qa-q-text { color: var(--gold-dark); }
    .qa-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
    .qa-tag { padding: 3px 10px; border-radius: 12px; font-size: 11px; color: var(--text-mute); background: rgba(0,0,0,0.04); }
    .qa-meta { display: flex; align-items: center; gap: 16px; }
    .qa-author { display: flex; align-items: center; gap: 8px; }
    .qa-avatar { width: 24px; height: 24px; border-radius: 50%; background: linear-gradient(135deg, var(--gold-light), var(--gold)); }
    .qa-name { font-size: 12px; color: var(--text-mute); }
    .qa-stat { font-size: 12px; color: var(--text-mute); display: flex; align-items: center; gap: 4px; }

    /* 问答答 */
    .qa-answer { background: rgba(201,169,110,0.06); border-radius: var(--radius); padding: 16px 20px; margin-top: 16px; display: flex; gap: 12px; border-left: 3px solid var(--gold); }
    .qa-answer-badge { width: 28px; height: 28px; border-radius: 6px; background: var(--gold); color: var(--white); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
    .qa-answer-text { flex: 1; }
    .qa-answer-text p { font-size: 13px; color: var(--text-body); line-height: 1.8; }
    .qa-answer-official { font-size: 11px; color: var(--gold-dark); margin-top: 6px; font-weight: 600; }

    /* QA 侧栏 */
    .ask-btn-large { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 16px; background: var(--black); color: var(--white); border-radius: var(--radius); font-size: 14px; font-weight: 600; letter-spacing: 1px; cursor: pointer; border: none; font-family: inherit; transition: background var(--trans); margin-bottom: 24px; }
    .ask-btn-large:hover { background: var(--gold); }
    .qa-stat-card { background: var(--white); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 24px; box-shadow: var(--shadow-sm); }
    .qa-stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; text-align: center; }
    .qa-stat-num { font-family: 'Outfit', sans-serif; font-size: 28px; font-weight: 800; color: var(--gold-dark); line-height: 1; }
    .qa-stat-label { font-size: 11px; color: var(--text-mute); margin-top: 4px; }
    .popular-topics { display: flex; flex-direction: column; gap: 10px; }
    .popular-topic { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-body); cursor: pointer; transition: color var(--trans); padding: 6px 0; }
    .popular-topic:hover { color: var(--gold-dark); }
    .popular-topic::before { content: '#'; color: var(--gold); font-weight: 700; }

    /* ============================================================ 分页 ============================================================ */
    .pagination { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 48px; }
    .page-btn { width: 40px; height: 40px; border-radius: var(--radius); border: 1px solid rgba(0,0,0,0.1); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 500; color: var(--text-mute); cursor: pointer; transition: all var(--trans); }
    .page-btn:hover { border-color: var(--gold); color: var(--gold-dark); }
    .page-btn.active { background: var(--black); color: var(--white); border-color: var(--black); }
    .page-btn.disabled { opacity: 0.4; cursor: not-allowed; }

    /* ============================================================ CTA ============================================================ */
    .cta-section { background: var(--black); padding: 72px 0; text-align: center; }
    .cta-label { font-size: 11px; letter-spacing: 3px; color: var(--gold); font-weight: 600; text-transform: uppercase; margin-bottom: 14px; }
    .cta-title { font-family: 'Noto Serif SC', serif; font-size: clamp(22px, 3vw, 32px); color: var(--white); font-weight: 700; margin-bottom: 12px; }
    .cta-sub { font-size: 14px; color: rgba(255,255,255,0.4); margin-bottom: 28px; }
    .cta-btn { display: inline-block; padding: 13px 32px; background: var(--gold); color: var(--white); border-radius: var(--radius); font-size: 13px; 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, .top-tabs-inner { padding-left: 20px; padding-right: 20px; }
      .nav-links { display: none; }
      .hamburger { display: flex; }
      .news-layout, .qa-layout { grid-template-columns: 1fr; }
      .news-item { grid-template-columns: 1fr; }
      .news-img-wrap { height: 200px; }
      .sidebar { display: none; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 600px) {
      .top-tab { padding: 18px 20px; font-size: 14px; }
      .news-title { font-size: 17px; }
      .search-tags { display: none; }
      .footer-grid { grid-template-columns: 1fr; }
    }