:root {
      --primary: #eab308;
      --accent: #f59e0b;
      --bg: #18181b;
      --text: #fafafa;
      --muted: #a1a1aa;
      --border-light: rgba(234, 179, 8, 0.25);
      --card-bg: #202024;
      --font-display: 'Quicksand', 'Noto Sans SC', sans-serif;
      --font-body: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    }

    * { box-sizing: border-box; }
    body {
      background-color: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      line-height: 1.7;
      letter-spacing: 0.02em;
      margin: 0;
      padding: 0;
      overflow-x: hidden;
    }

    /* 渐变光晕/模糊背景 */
    .bg-aurora {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100vh;
      z-index: -1;
      background: 
        radial-gradient(circle at 10% 20%, rgba(245, 158, 11, 0.08), transparent 35%),
        radial-gradient(circle at 90% 10%, rgba(234, 179, 8, 0.12), transparent 45%),
        radial-gradient(circle at 50% 80%, rgba(245, 158, 11, 0.05), transparent 40%);
    }

    /* 导航栏 */
    .navbar-custom {
      transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
      background-color: transparent;
      border-bottom: 1px solid transparent;
    }
    .navbar-custom.scrolled {
      background-color: rgba(24, 24, 27, 0.85);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-light);
    }
    .navbar-brand {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 1.8rem;
      color: var(--primary) !important;
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 0.3rem;
    }
    .navbar-brand i {
      color: var(--accent);
      font-size: 1.6rem;
    }
    .nav-link-custom {
      color: var(--text) !important;
      font-weight: 500;
      margin: 0 0.5rem;
      font-size: 0.98rem;
      position: relative;
    }
    .nav-link-custom:hover {
      color: var(--primary) !important;
    }
    .nav-link-custom::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0%;
      height: 2px;
      background: var(--primary);
      transition: width 0.25s;
    }
    .nav-link-custom:hover::after {
      width: 100%;
    }

    /* Hero 区块 — 大数字 + 视差 */
    .hero-section {
      min-height: 90vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      position: relative;
      padding: 4rem 0;
      background: transparent;
      overflow: hidden;
    }
    .hero-bg-parallax {
      position: absolute;
      inset: -20% 0 -10% 0;
      background-image: radial-gradient(circle at 20% 30%, rgba(245,158,11,0.18) 0%, transparent 30%),
                        radial-gradient(circle at 80% 60%, rgba(234,179,8,0.12) 0%, transparent 25%);
      z-index: 0;
      will-change: transform;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 900px;
      padding: 0 1.5rem;
    }
    .hero-stats {
      display: flex;
      justify-content: center;
      gap: 3rem;
      flex-wrap: wrap;
      margin-bottom: 2rem;
    }
    .stat-item {
      font-family: var(--font-display);
      font-size: 2.5rem;
      font-weight: 700;
      color: var(--primary);
      line-height: 1.2;
    }
    .stat-item small {
      display: block;
      font-size: 0.95rem;
      color: var(--muted);
      letter-spacing: 1px;
      font-family: var(--font-body);
    }
    .hero-title {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 3.5rem;
      line-height: 1.15;
      margin-bottom: 1rem;
      color: var(--text);
      text-shadow: 0 2px 12px rgba(234, 179, 8, 0.1);
    }
    .hero-sub {
      color: var(--muted);
      max-width: 560px;
      margin: 0 auto 2rem;
      font-size: 1.15rem;
    }

    /* 通用区块 */
    .section-padding { padding: 4.5rem 0; }
    .section-title {
      font-family: var(--font-display);
      font-weight: 600;
      font-size: 2rem;
      margin-bottom: 0.5rem;
      color: var(--text);
    }
    .section-underline {
      width: 70px;
      height: 3px;
      background: var(--primary);
      margin-bottom: 2.5rem;
    }

    /* 对比表格 (无阴影描边) */
    .compare-table {
      width: 100%;
      border-collapse: collapse;
      background: transparent;
      font-size: 0.98rem;
    }
    .compare-table th, .compare-table td {
      padding: 1rem 0.8rem;
      border: 1px solid rgba(234, 179, 8, 0.2);
      text-align: left;
      vertical-align: middle;
    }
    .compare-table thead th {
      font-weight: 600;
      background-color: rgba(234, 179, 8, 0.08);
      color: var(--primary);
      font-size: 1rem;
    }
    .compare-table td i {
      color: var(--primary);
      margin-right: 5px;
    }

    /* 特色卡片网格 */
    .feature-card {
      background: var(--card-bg);
      border: 1px solid var(--border-light);
      border-radius: 0.75rem;
      padding: 1.8rem 1.5rem;
      transition: transform 0.2s ease, border-color 0.2s ease;
      height: 100%;
      background-color: #202024;
    }
    .feature-card:hover {
      transform: scale(1.02);
      border-color: var(--primary);
    }
    .feature-icon {
      font-size: 2.2rem;
      color: var(--primary);
      margin-bottom: 1rem;
    }
    .feature-card h5 {
      font-family: var(--font-display);
      font-weight: 600;
      margin-bottom: 0.75rem;
    }

    /* 步骤条 */
    .steps-wrapper {
      display: flex;
      flex-wrap: wrap;
      gap: 1.8rem;
      justify-content: center;
      margin-top: 2rem;
    }
    .step-item {
      flex: 1 1 180px;
      position: relative;
      padding: 0 0.5rem;
      border-left: 2px solid var(--primary);
    }
    .step-num {
      font-family: var(--font-display);
      font-size: 2.2rem;
      font-weight: 700;
      color: transparent;
      -webkit-text-stroke: 1.5px var(--primary);
      display: block;
      line-height: 1;
    }
    .step-title {
      font-weight: 600;
      margin-top: 0.2rem;
    }

    /* FAQ 风格 */
    .faq-item {
      background: transparent;
      border-bottom: 1px solid rgba(234, 179, 8, 0.15);
      padding: 1.2rem 0;
    }
    .faq-question {
      font-weight: 600;
      font-size: 1.08rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: default;
      color: var(--text);
    }
    .faq-question i {
      color: var(--primary);
      opacity: 0.8;
    }
    .faq-answer {
      color: var(--muted);
      margin-top: 0.6rem;
      padding-right: 1.5rem;
    }

    /* CTA */
    .cta-box {
      background: linear-gradient(135deg, rgba(234,179,8,0.1), rgba(245,158,11,0.03));
      border: 1px solid var(--border-light);
      border-radius: 1.2rem;
      padding: 3rem 2rem;
    }

    /* 友情链接与页脚 */
    .friend-links {
      border-top: 1px solid rgba(234,179,8,0.15);
      border-bottom: 1px solid rgba(234,179,8,0.15);
      padding: 2.5rem 0;
      margin-top: 2.5rem;
    }
    .friend-links h6 {
      color: var(--primary);
      letter-spacing: 1px;
    }
    .footer {
      padding: 2rem 0 1.5rem;
      color: var(--muted);
      font-size: 0.9rem;
      border-top: 1px solid rgba(234,179,8,0.1);
    }

    /* 锚点偏移 */
    .anchor-offset { scroll-margin-top: 80px; }

    /* 按钮 */
    .btn-outline-gold {
      border: 1.5px solid var(--primary);
      color: var(--primary);
      border-radius: 30px;
      padding: 0.5rem 1.6rem;
      transition: 0.2s;
      background: transparent;
      font-weight: 500;
    }
    .btn-outline-gold:hover {
      background: var(--primary);
      color: #18181b;
      box-shadow: 0 0 12px rgba(234,179,8,0.3);
    }

    @media (max-width: 768px) {
      .hero-title { font-size: 2.6rem; }
      .stat-item { font-size: 2rem; }
      .navbar-collapse { background: rgba(24,24,27,0.95); padding: 1rem; border-radius: 0.5rem; }
    }

/* --- 子页面追加 --- */
/* 关于页专属样式 —— 仅补充本页需要而首页未覆盖的部分 */
        .about-hero {
            background: linear-gradient(135deg, rgba(24,24,27,.9) 0%, rgba(24,24,27,.7) 50%, rgba(234,179,8,.15) 100%);
            position: relative;
            overflow: hidden;
        }
.about-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(234,179,8,.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
.about-meta-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 2rem;
            height: 100%;
            transition: transform .3s ease, box-shadow .3s ease;
        }
.about-meta-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 32px rgba(234,179,8,.08);
        }
.about-meta-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: rgba(234,179,8,.15);
            color: var(--primary);
            margin-bottom: 1.25rem;
        }
.timeline-wrapper {
            position: relative;
            padding-left: 2.2rem;
        }
.timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(234,179,8,.1));
        }
.timeline-item {
            position: relative;
            margin-bottom: 2.2rem;
        }
.timeline-item::before {
            content: '';
            position: absolute;
            left: -2.2rem;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg);
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(234,179,8,.15);
        }
.timeline-year {
            font-family: var(--font-display);
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
            letter-spacing: .5px;
        }
.value-tag {
            display: inline-block;
            padding: .35rem 1rem;
            border-radius: 30px;
            background: rgba(234,179,8,.1);
            border: 1px solid var(--border-light);
            color: var(--primary);
            font-size: .85rem;
            font-weight: 600;
            margin: .25rem;
        }
.about-quote {
            border-left: 4px solid var(--primary);
            background: rgba(234,179,8,.06);
            padding: 1.5rem 2rem;
            border-radius: 0 16px 16px 0;
            font-style: italic;
            color: var(--text);
            margin: 2rem 0;
        }
.stat-about {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 1.5rem;
            text-align: center;
            height: 100%;
        }
.stat-about .num {
            font-family: var(--font-display);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
.stat-about .label {
            font-size: .9rem;
            color: var(--muted);
            margin-top: .35rem;
        }
.team-simple-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.team-simple-list li {
            padding: .8rem 0;
            border-bottom: 1px solid rgba(234,179,8,.1);
            display: flex;
            align-items: center;
            gap: .75rem;
        }
.team-simple-list li:last-child { border-bottom: none; }
.team-simple-list i {
            color: var(--primary);
            width: 20px;
            text-align: center;
        }

/* --- 子页面追加 --- */
.privacy-section { padding: 5rem 0; }
.privacy-box { background: var(--card-bg); border: 1px solid var(--border-light); border-radius: 1rem; padding: 2.5rem; margin-bottom: 2rem; }
.privacy-box h2 { color: var(--primary); font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; }
.privacy-box p, .privacy-box li { color: var(--text); line-height: 1.8; margin-bottom: 1rem; }
.privacy-box ul { padding-left: 1.5rem; }
.privacy-box ul li { list-style: disc; }
.privacy-box strong { color: var(--primary); }
.last-updated { color: var(--muted); font-size: 0.9rem; margin-bottom: 2rem; }

/* --- 子页面追加 --- */
/* 本页专属样式 */
        .guide-hero {
            background: linear-gradient(135deg, rgba(24,24,27,0.9) 0%, rgba(234,179,8,0.15) 100%);
            padding: 100px 0 80px;
            position: relative;
            overflow: hidden;
        }
.guide-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(234,179,8,0.08) 0%, transparent 70%);
            animation: float 8s ease-in-out infinite;
        }
0%, 100% { transform: translateY(0px); }
50% { transform: translateY(-20px); }
.guide-section {
            padding: 80px 0;
        }
.guide-section:nth-of-type(even) {
            background: rgba(32, 32, 36, 0.3);
        }
.guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 32px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
.guide-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(234, 179, 8, 0.1);
        }
.guide-icon {
            font-size: 2.5rem;
            color: var(--primary);
            margin-bottom: 16px;
            display: block;
        }
.guide-step-num {
            background: var(--primary);
            color: #18181b;
            font-weight: 800;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
.guide-tip {
            background: rgba(234, 179, 8, 0.08);
            border-left: 3px solid var(--primary);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            font-size: 0.95rem;
            color: var(--text);
        }
.guide-tip i {
            color: var(--primary);
            margin-right: 8px;
        }
.workflow-box {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 40px;
            margin-top: 40px;
        }
.workflow-step {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid rgba(234, 179, 8, 0.1);
        }
.workflow-step:last-child {
            border-bottom: none;
        }
.workflow-icon {
            font-size: 1.5rem;
            color: var(--primary);
            background: rgba(234, 179, 8, 0.1);
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
.workflow-content {
            flex: 1;
        }
.workflow-title {
            font-family: var(--font-display);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
.workflow-desc {
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }
.palette-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin-top: 24px;
        }
.palette-item {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 12px;
            padding: 16px;
            text-align: center;
        }
.color-swatch {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 12px;
            border: 2px solid rgba(255,255,255,0.1);
        }
.color-name {
            color: var(--text);
            font-size: 0.85rem;
            font-weight: 600;
        }
.color-hex {
            color: var(--muted);
            font-size: 0.75rem;
        }
.guide-hero {
                padding: 80px 0 60px;
            }
.guide-section {
                padding: 60px 0;
            }
.guide-card {
                padding: 24px;
                margin-bottom: 16px;
            }
.workflow-box {
                padding: 24px;
            }
.workflow-step {
                flex-direction: column;
                gap: 12px;
            }