:root {
            --primary-color: #1a4d8f;
            --secondary-color: #d4af37;
            --accent-color: #2874d5;
            --text-dark: #1a1a1a;
            --text-gray: #4a4a4a;
            --text-light: #6b6b6b;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --border-color: #e0e0e0;
            --hover-color: #155a9f;
            --success-color: #28a745;
            --warning-color: #ffc107;
            --danger-color: #dc3545;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.16);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
            line-height: 1.8;
            color: var(--text-dark);
            background-color: var(--bg-light);
        }

        /* 导航栏 */
        .navbar {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
            box-shadow: var(--shadow-md);
            position: sticky;
            top: 0;
            z-index: 1000;
            animation: slideDown 0.5s ease-out;
        }

        @keyframes slideDown {
            from {
                transform: translateY(-100%);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 700;
            color: var(--bg-white);
            text-decoration: none;
            transition: transform 0.3s ease;
        }

        .logo:hover {
            transform: scale(1.05);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--secondary-color);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 20px;
        }

        .nav-menu {
            display: flex;
            gap: 40px;
            list-style: none;
            align-items: center;
        }

        .nav-menu a {
            color: var(--bg-white);
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 6px;
            transition: all 0.3s ease;
            position: relative;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--secondary-color);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-menu a:hover::after,
        .nav-menu a.active::after {
            width: 80%;
        }

        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(255,255,255,0.1);
        }

        .search-box {
            display: flex;
            gap: 0;
            max-width: 400px;
        }

        .search-input {
            flex: 1;
            padding: 10px 16px;
            border: 2px solid var(--bg-white);
            border-right: none;
            border-radius: 25px 0 0 25px;
            outline: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .search-input:focus {
            background: #f0f8ff;
        }

        .search-btn {
            padding: 10px 24px;
            background: var(--secondary-color);
            color: var(--text-dark);
            border: 2px solid var(--secondary-color);
            border-radius: 0 25px 25px 0;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.3s ease;
            font-size: 14px;
        }

        .search-btn:hover {
            background: #bf9b2f;
            transform: translateX(2px);
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: var(--bg-white);
            font-size: 28px;
            cursor: pointer;
        }

        /* 面包屑导航 */
        .breadcrumb {
            max-width: 1400px;
            margin: 20px auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-gray);
            animation: fadeIn 0.5s ease-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .breadcrumb a {
            color: var(--accent-color);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .breadcrumb a:hover {
            color: var(--hover-color);
            text-decoration: underline;
        }

        .breadcrumb-separator {
            color: var(--text-light);
        }

        /* 主内容区 */
        .main-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 20px;
            display: grid;
            grid-template-columns: 1fr 350px;
            gap: 30px;
            animation: fadeIn 0.6s ease-out 0.2s both;
        }

        /* 文章内容区 */
        .article-container {
            background: var(--bg-white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-md);
            border: 2px solid var(--border-color);
            overflow-x: hidden;
        }

        .article-header {
            border-bottom: 3px solid var(--secondary-color);
            padding-bottom: 30px;
            margin-bottom: 40px;
        }

        .article-title {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.4;
            font-weight: 700;
        }

        .article-meta {
            display: flex;
            gap: 30px;
            color: var(--text-gray);
            font-size: 14px;
            flex-wrap: wrap;
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-content {
            font-size: 16px;
            line-height: 2;
            color: var(--text-dark);
        }

        .article-content h2 {
            font-size: 24px;
            color: var(--primary-color);
            margin: 40px 0 20px;
            padding-left: 15px;
            border-left: 5px solid var(--secondary-color);
            font-weight: 700;
        }

        .article-content h3 {
            font-size: 20px;
            color: var(--text-dark);
            margin: 30px 0 15px;
            font-weight: 600;
        }

        .article-content p {
            margin-bottom: 20px;
            text-align: justify;
        }

        .article-content strong,
        .article-content .highlight {
            color: var(--accent-color);
            font-weight: 700;
        }

        .article-content .important {
            color: var(--danger-color);
            font-weight: 700;
        }

        .article-content a {
            color: var(--accent-color);
            text-decoration: none;
            font-weight: 600;
            border-bottom: 1px dashed var(--accent-color);
            transition: all 0.3s ease;
        }

        .article-content a:hover {
            color: var(--hover-color);
            border-bottom-style: solid;
        }

        .article-content ul,
        .article-content ol {
            margin: 20px 0 20px 30px;
        }

        .article-content li {
            margin-bottom: 12px;
            line-height: 1.8;
        }

        /* 提示框 */
        .tip-box {
            background: linear-gradient(135deg, #e3f2fd 0%, #f0f8ff 100%);
            border-left: 5px solid var(--accent-color);
            padding: 20px 25px;
            margin: 30px 0;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
        }

        .tip-box.warning {
            background: linear-gradient(135deg, #fff3cd 0%, #fffbea 100%);
            border-left-color: var(--warning-color);
        }

        .tip-box.success {
            background: linear-gradient(135deg, #d4edda 0%, #eafaf1 100%);
            border-left-color: var(--success-color);
        }

        .tip-box-title {
            font-weight: 700;
            font-size: 17px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 表格样式 */
        .table-container {
            margin: 30px 0;
            overflow-x: auto;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--bg-white);
        }

        thead {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            color: var(--bg-white);
        }

        th {
            padding: 16px;
            text-align: left;
            font-weight: 700;
            font-size: 15px;
        }

        td {
            padding: 14px 16px;
            border-bottom: 1px solid var(--border-color);
        }

        tbody tr:hover {
            background: var(--bg-light);
        }

        tbody tr:last-child td {
            border-bottom: none;
        }

        /* 上下篇导航 */
        .article-navigation {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid var(--border-color);
        }

        .nav-item {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 20px;
            background: var(--bg-light);
            border-radius: 12px;
            border: 2px solid var(--border-color);
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .nav-item:hover {
            background: var(--bg-white);
            border-color: var(--accent-color);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
        }

        .nav-label {
            font-size: 13px;
            color: var(--text-gray);
            font-weight: 600;
        }

        .nav-title {
            font-size: 16px;
            color: var(--text-dark);
            line-height: 1.5;
        }

        .nav-item:hover .nav-title {
            color: var(--accent-color);
        }

        /* 右侧边栏 */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-widget {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            border: 2px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .sidebar-widget:hover {
            border-color: var(--accent-color);
            box-shadow: var(--shadow-md);
        }

        .widget-title {
            font-size: 20px;
            color: var(--primary-color);
            margin-bottom: 20px;
            padding-bottom: 12px;
            border-bottom: 3px solid var(--secondary-color);
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 热门推荐 */
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hot-item {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .hot-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hot-item:hover {
            padding-left: 8px;
        }

        .hot-number {
            width: 28px;
            height: 28px;
            background: var(--bg-light);
            color: var(--text-gray);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }

        .hot-item:nth-child(1) .hot-number,
        .hot-item:nth-child(2) .hot-number,
        .hot-item:nth-child(3) .hot-number {
            background: linear-gradient(135deg, var(--secondary-color), #e0b748);
            color: var(--bg-white);
        }

        .hot-content a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            line-height: 1.5;
            display: block;
            transition: color 0.3s ease;
        }

        .hot-content a:hover {
            color: var(--accent-color);
        }

        /* 微信订阅 */
        .wechat-widget {
            text-align: center;
        }

        .wechat-qr {
            width: 200px;
            height: 200px;
            margin: 0 auto 16px;
            border: 3px solid var(--secondary-color);
            border-radius: 12px;
            overflow: hidden;
        }

        .wechat-qr img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .wechat-info {
            color: var(--text-gray);
            font-size: 14px;
            line-height: 1.8;
        }

        .wechat-phone {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-color);
            margin-top: 12px;
        }

        /* 页脚 */
        .footer {
            background: linear-gradient(135deg, #1a2332 0%, #2d3e50 100%);
            color: #b0b8c1;
            padding: 40px 0 20px;
            margin-top: 60px;
        }

        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-info {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact {
            font-size: 22px;
            color: var(--secondary-color);
            font-weight: 700;
        }

        .footer-bottom {
            padding-top: 25px;
            text-align: center;
            font-size: 14px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-bottom a {
            color: #b0b8c1;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-bottom a:hover {
            color: var(--secondary-color);
        }

        /* 侧边栏 - 桌面端 */
        .desktop-sidebar {
            position: fixed;
            right: 30px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-item {
            background: var(--bg-white);
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--shadow-md);
            text-align: center;
            transition: all 0.3s ease;
            border: 2px solid var(--border-color);
        }

        .sidebar-item:hover {
            transform: scale(1.05);
            box-shadow: var(--shadow-lg);
            border-color: var(--accent-color);
        }

        .sidebar-qr {
            width: 120px;
        }

        .sidebar-qr img {
            width: 100%;
            border-radius: 8px;
        }

        .sidebar-phone {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary-color);
        }

        .sidebar-label {
            font-size: 13px;
            color: var(--text-gray);
            margin-top: 8px;
        }

        /* 移动端底部栏 */
        .mobile-bottom-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-white);
            box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
            padding: 16px;
            z-index: 999;
            justify-content: space-around;
            align-items: center;
        }

        .mobile-contact-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .mobile-qr-thumb {
            width: 50px;
            height: 50px;
            cursor: pointer;
            border-radius: 8px;
            border: 2px solid var(--accent-color);
            transition: transform 0.3s ease;
        }

        .mobile-qr-thumb:hover {
            transform: scale(1.1);
        }

        .mobile-phone {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary-color);
        }

        .mobile-label {
            font-size: 12px;
            color: var(--text-gray);
        }

        /* 二维码弹窗 */
        .qr-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.8);
            z-index: 10000;
            justify-content: center;
            align-items: center;
            animation: fadeIn 0.3s ease;
        }

        .qr-modal.active {
            display: flex;
        }

        .qr-modal-content {
            background: var(--bg-white);
            padding: 30px;
            border-radius: 16px;
            max-width: 90%;
            max-height: 90%;
            position: relative;
            animation: zoomIn 0.3s ease;
        }

        @keyframes zoomIn {
            from {
                transform: scale(0.8);
                opacity: 0;
            }
            to {
                transform: scale(1);
                opacity: 1;
            }
        }

        .qr-modal-content img {
            max-width: 100%;
            max-height: 70vh;
            border-radius: 8px;
        }

        .qr-close {
            position: absolute;
            top: 10px;
            right: 10px;
            font-size: 32px;
            color: var(--text-gray);
            cursor: pointer;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--bg-light);
            transition: all 0.3s ease;
        }

        .qr-close:hover {
            background: var(--accent-color);
            color: var(--bg-white);
            transform: rotate(90deg);
        }

        /* 客服漂浮图标 */
        .float-service {
            position: fixed;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 998;
            animation: floatUpDown 3s ease-in-out infinite;
        }

        @keyframes floatUpDown {
            0%, 100% {
                transform: translateY(-50%);
            }
            50% {
                transform: translateY(calc(-50% - 15px));
            }
        }

        .service-btn {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--success-color), #20c997);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-lg);
            transition: all 0.3s ease;
            color: var(--bg-white);
            font-size: 28px;
            border: 3px solid var(--bg-white);
        }

        .service-btn:hover {
            transform: scale(1.15);
            box-shadow: 0 8px 32px rgba(40, 167, 69, 0.4);
        }

        .service-popup {
            display: none;
            position: absolute;
            left: 80px;
            top: 50%;
            transform: translateY(-50%);
            background: var(--bg-white);
            padding: 20px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            width: 180px;
            border: 2px solid var(--success-color);
        }

        .service-popup.active {
            display: block;
            animation: slideInLeft 0.3s ease;
        }

        @keyframes slideInLeft {
            from {
                opacity: 0;
                transform: translateY(-50%) translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(-50%) translateX(0);
            }
        }

        .service-popup img {
            width: 100%;
            border-radius: 8px;
        }

        .service-popup p {
            text-align: center;
            margin-top: 10px;
            color: var(--text-gray);
            font-size: 13px;
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .main-container {
                grid-template-columns: 1fr;
            }

            .sidebar {
                display: flex;
                flex-direction: column;
                gap: 24px;
            }
        }

        @media (max-width: 968px) {
            .nav-container {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 16px;
            }

            .logo {
                font-size: 20px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }

            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                background: var(--primary-color);
                padding: 16px 0;
                margin-top: 12px;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-menu a {
                width: 100%;
                padding: 14px 20px;
                border-radius: 0;
            }

            .mobile-menu-btn {
                display: block;
            }

            .search-box {
                width: 100%;
                margin-top: 12px;
                order: 3;
            }

            .article-container {
                padding: 20px 16px;
                border-radius: 12px;
            }

            .article-title {
                font-size: 22px;
                line-height: 1.4;
            }

            .article-meta {
                font-size: 13px;
                gap: 16px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 20px;
                margin: 30px 0 16px;
                padding-left: 12px;
                border-left-width: 4px;
            }

            .article-content h3 {
                font-size: 18px;
                margin: 24px 0 12px;
            }

            .article-content p {
                margin-bottom: 16px;
            }

            .tip-box {
                padding: 16px 18px;
                margin: 24px 0;
            }

            .tip-box-title {
                font-size: 15px;
            }

            .table-container {
                margin: 20px 0;
                border-radius: 8px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }

            table {
                font-size: 13px;
                min-width: 600px;
            }

            th, td {
                padding: 10px 12px;
            }

            th {
                font-size: 13px;
            }

            .article-navigation {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: 30px;
                padding-top: 24px;
            }

            .nav-item {
                padding: 16px;
            }

            .nav-title {
                font-size: 15px;
            }

            .desktop-sidebar {
                display: none;
            }

            .mobile-bottom-bar {
                display: flex;
            }

            .float-service {
                left: 10px;
                bottom: 90px;
                top: auto;
                transform: none;
            }

            .service-btn {
                width: 50px;
                height: 50px;
                font-size: 24px;
            }

            .service-popup {
                left: auto;
                right: -200px;
                top: 50%;
                transform: translateY(-50%);
            }

            .footer-content {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            .article-container {
                padding: 16px 12px;
            }

            .article-title {
                font-size: 20px;
            }

            .article-content {
                font-size: 14px;
            }

            .article-content h2 {
                font-size: 18px;
                padding-left: 10px;
            }

            .article-content h3 {
                font-size: 16px;
            }

            .article-content ul,
            .article-content ol {
                margin-left: 20px;
            }

            table {
                font-size: 12px;
                min-width: 550px;
            }

            th, td {
                padding: 8px 10px;
            }

            .tip-box {
                padding: 14px 16px;
            }

            .nav-item {
                padding: 14px;
            }

            .nav-title {
                font-size: 14px;
            }
        }