* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, sans-serif;
            background: #f5f9fe;
            color: #1e2f3e;
            line-height: 1.5;
        }

        .bg-light {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -2;
            background: radial-gradient(circle at 80% 10%, #e0edf9, #f2f7fc);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            flex-wrap: wrap;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: #1e3a6f;
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 20px rgba(30,58,111,0.15);
        }

        .logo-text {
            font-size: 1.8rem;
            font-weight: 800;
            color: #0a2b4e;
            letter-spacing: -0.3px;
        }

        .nav-links {
            display: flex;
            gap: 36px;
            align-items: center;
            flex-wrap: wrap;
        }

        .nav-links a {
            color: #334155;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.2s;
            font-size: 1rem;
        }

        .nav-links a:hover, .nav-links a.active {
            color: #1e6f5c;
        }

        .page-header {
            text-align: center;
            padding: 56px 0 32px;
        }

        .page-header h1 {
            font-size: 3rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0a2b4e, #1e6f5c);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 16px;
        }

        .page-header p {
            color: #54708f;
            font-size: 1.1rem;
            max-width: 580px;
            margin: 0 auto;
        }

        /* 搜索框 */
        .search-wrapper {
            max-width: 560px;
            margin: 24px auto 40px;
        }

        .search-box {
            width: 100%;
            padding: 16px 24px;
            background: white;
            border: 1px solid #dce9f2;
            border-radius: 60px;
            font-size: 1rem;
            color: #1e2f3e;
            outline: none;
            transition: all 0.2s;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }

        .search-box:focus {
            border-color: #1e6f5c;
            box-shadow: 0 4px 14px rgba(30,111,92,0.1);
        }

        /* 分类标签 */
        .categories {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 48px;
        }

        .cat-chip {
            background: white;
            border: 1px solid #d4e2ec;
            padding: 8px 24px;
            border-radius: 40px;
            font-weight: 500;
            color: #3a5a7a;
            cursor: pointer;
            transition: all 0.2s;
        }

        .cat-chip:hover {
            border-color: #1e6f5c;
            color: #1e6f5c;
        }

        .cat-chip.active-cat {
            background: #1e6f5c;
            border-color: #1e6f5c;
            color: white;
        }

        /* FAQ 网格布局 */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin: 24px 0 56px;
        }

        .faq-card {
            background: white;
            border-radius: 28px;
            padding: 24px 28px;
            transition: all 0.2s;
            border: 1px solid #e4eff7;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
        }

        .faq-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 28px -12px rgba(30,111,92,0.12);
            border-color: #cde0ea;
        }

        .faq-question {
            font-size: 1.2rem;
            font-weight: 700;
            color: #0f2c47;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
        }

        .faq-question .q-icon {
            font-size: 1.3rem;
        }

        .faq-answer {
            color: #5a6f8c;
            line-height: 1.6;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, margin 0.2s;
            border-top: 0px solid transparent;
        }

        .faq-card.expanded .faq-answer {
            max-height: 300px;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid #e4edf5;
        }

        .expand-icon {
            margin-left: auto;
            font-size: 1.2rem;
            transition: transform 0.2s;
            color: #8ea3c0;
        }

        .faq-card.expanded .expand-icon {
            transform: rotate(180deg);
        }

        .faq-question-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .contact-block {
            background: #ffffffdd;
            backdrop-filter: blur(4px);
            border-radius: 40px;
            padding: 42px 32px;
            text-align: center;
            margin: 32px 0 64px;
            border: 1px solid #d4e7f0;
        }

        .contact-block h3 {
            font-size: 1.6rem;
            color: #0a2b4e;
            margin-bottom: 12px;
        }

        .contact-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 28px;
        }

        .contact-btn {
            background: #1e6f5c;
            padding: 12px 32px;
            border-radius: 48px;
            color: white;
            text-decoration: none;
            font-weight: 600;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .contact-btn-outline {
            background: transparent;
            border: 1px solid #bdd3e0;
            color: #2c5a6e;
        }

        .contact-btn:hover {
            background: #0f5546;
            transform: translateY(-2px);
        }

        .footer {
            border-top: 1px solid #dce5ef;
            padding: 48px 0 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 32px;
        }

        .footer-copyright {
            font-size: 0.85rem;
            color: #6f8aaa;
        }

        .footer-links a {
            color: #4a6f8f;
            text-decoration: none;
            margin-left: 32px;
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: #1e6f5c;
        }

        @media (max-width: 800px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .navbar {
                flex-direction: column;
                gap: 16px;
            }
            .page-header h1 {
                font-size: 2.2rem;
            }
        }