* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary-gold: #D4AF37;
            --primary-blue: #0A2463;
            --secondary-blue: #253F7B;
            --dark-blue: #0F172A;
            --light-gray: #F8FAFC;
            --medium-gray: #94A3B8;
            --dark-gray: #334155;
            --white: #FFFFFF;
            --success: #10B981;
            --warning: #F59E0B;
            --danger: #2b1b1b;
            --border-radius: 8px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
            --font-sans: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

        body {
            font-family: var(--font-sans);
            color: var(--dark-gray);
            background-color: var(--white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏样式 */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.98);
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: var(--primary-blue);
            font-weight: bold;
            font-size: 1.5rem;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-gold), #E5C100);
            color: var(--white);
            border-radius: var(--border-radius);
            margin-right: 0.5rem;
            font-size: 1.25rem;
            box-shadow: var(--shadow-sm);
        }

        .nav-menu {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-menu a {
            text-decoration: none;
            color: var(--dark-gray);
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 0.5rem 0;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-gold);
            transition: width 0.3s ease;
        }

        .nav-menu a:hover {
            color: var(--primary-blue);
        }

        .nav-menu a:hover::after {
            width: 100%;
        }

        .login-btn {
            background: linear-gradient(135deg, var(--primary-gold), #E5C100);
            color: var(--white) !important;
            padding: 0.5rem 1.25rem;
            border-radius: 50px;
            font-weight: 600;
            box-shadow: var(--shadow-md);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .login-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #E5C100, var(--primary-gold));
            opacity: 0;
            z-index: -1;
            transition: opacity 0.3s ease;
        }

        .login-btn:hover::before {
            opacity: 1;
        }

        /* 移动端菜单按钮 */
        .mobile-menu-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 5px;
            border: none;
            background: none;
        }

        .mobile-menu-btn .menu-line {
            width: 25px;
            height: 3px;
            background: var(--primary-blue);
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        /* 导航栏滚动效果 */
        .navbar.scrolled {
            box-shadow: 0 4px 20px rgba(0,0,0,0.12);
            background: rgba(255, 255, 255, 0.99);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .nav-container {
                padding: 1rem 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                padding: 0.8rem 1.2rem;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--white);
                flex-direction: column;
                padding: 1rem;
                gap: 1rem;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .mobile-menu-btn.active .menu-line:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }

            .mobile-menu-btn.active .menu-line:nth-child(2) {
                opacity: 0;
            }

            .mobile-menu-btn.active .menu-line:nth-child(3) {
                transform: rotate(-45deg) translate(7px, -7px);
            }
        }

        /* 页面内容 */
        .page-hero {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: var(--white);
            padding: 8rem 2rem 6rem;
            text-align: center;
            position: relative;
            margin-top: 0;
        }

        .page-hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            font-weight: 800;
        }

        .page-hero p {
            font-size: 1.2rem;
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
        }

        .section {
            padding: 5rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        /* FAQ 样式 */
        .faq-section {
            padding: 3rem 2rem;
        }

        .faq-container {
            max-width: 1000px;
            margin: 0 auto;
        }

        .faq-search {
            margin-bottom: 3rem;
            text-align: center;
        }

        .faq-search h3 {
            margin-bottom: 1rem;
            color: var(--primary-blue);
        }

        .search-input {
            width: 100%;
            max-width: 600px;
            padding: 1rem 1.5rem;
            border: 1px solid var(--medium-gray);
            border-radius: 50px;
            font-size: 1rem;
            outline: none;
            transition: var(--transition);
        }

        .search-input:focus {
            border-color: var(--primary-gold);
            box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
        }

        .faq-categories {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
            justify-content: center;
        }

        .category-btn {
            padding: 0.75rem 1.5rem;
            border: 1px solid var(--medium-gray);
            background: var(--white);
            border-radius: 50px;
            cursor: pointer;
            transition: var(--transition);
            font-weight: 500;
        }

        .category-btn:hover,
        .category-btn.active {
            background: var(--primary-blue);
            color: var(--white);
            border-color: var(--primary-blue);
        }

        .faq-content {
            margin-top: 2rem;
        }

        .faq-group {
            margin-bottom: 3rem;
        }

        .faq-group h3 {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--primary-blue);
            border-bottom: 2px solid var(--light-gray);
            padding-bottom: 0.5rem;
        }

        .faq-item {
            margin-bottom: 1rem;
            border: 1px solid var(--light-gray);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            background: var(--light-gray);
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-question:hover {
            background: #F1F5F9;
        }

        .faq-q-text {
            font-weight: 600;
            color: var(--primary-blue);
        }

        .faq-toggle {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-blue);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.875rem;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            background: var(--white);
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
        }

        .faq-a-text {
            padding: 1.5rem;
            line-height: 1.7;
        }

        .faq-a-text p {
            margin-bottom: 1rem;
        }

        .faq-a-text ul {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }

        .faq-a-text li {
            margin-bottom: 0.5rem;
        }

        .faq-a-text strong {
            color: var(--primary-blue);
        }

        /* 帮助区域 */
        .help-section {
            background: var(--light-gray);
            padding: 4rem 2rem;
            text-align: center;
        }

        .help-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .help-title {
            font-size: 1.75rem;
            margin-bottom: 1rem;
            color: var(--primary-blue);
        }

        .help-description {
            margin-bottom: 2rem;
            font-size: 1.1rem;
        }

        .help-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            justify-content: center;
        }

        .help-link {
            display: inline-block;
            padding: 1rem 2rem;
            background: var(--primary-blue);
            color: var(--white);
            border-radius: var(--border-radius);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            box-shadow: var(--shadow-md);
        }

        .help-link:hover {
            transform: scale(1.05);
            box-shadow: 0 6px 20px rgba(212,175,55,0.4);
        }

        /* 页脚样式 */
        footer {
            background: var(--dark-blue);
            color: var(--white);
            padding: 3rem 2rem 1rem;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1.5rem;
            font-size: 1.2rem;
            font-weight: 600;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: var(--white);
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 1rem;
        }

        .footer-logo-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-gold), #E5C100);
            color: var(--white);
            border-radius: var(--border-radius);
            margin-right: 0.5rem;
            font-size: 1.25rem;
        }

        .footer-description {
            margin-bottom: 1.5rem;
            opacity: 0.8;
            line-height: 1.6;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.75rem;
        }

        .footer-links a {
            text-decoration: none;
            color: var(--white);
            opacity: 0.8;
            transition: var(--transition);
        }

        .footer-links a:hover {
            opacity: 1;
            color: var(--primary-gold);
        }

        .footer-bottom {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            opacity: 0.8;
        }

        /* 动画效果 */
        .fade {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

        .fade.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .page-hero {
                padding: 4rem 1.2rem 3rem;
            }
            
            .page-hero h1 {
                font-size: 2rem;
            }
            
            .section {
                padding: 3.5rem 1.2rem;
            }
            
            .faq-section {
                padding: 2rem 1.2rem;
            }
            
            .faq-question {
                padding: 1rem;
            }
            
            .faq-a-text {
                padding: 1rem;
            }
        }