:root {
            --umkciz-primary: #ff6600;
            --umkciz-primary-light: #ff8533;
            --umkciz-text-dark: #222222;
            --umkciz-text-light: #666666;
            --umkciz-bg-gray: #fcfcfc;
            --umkciz-white: #ffffff;
            --umkciz-shadow: 0 10px 30px rgba(0,0,0,0.05);
            --umkciz-radius: 16px;
            --umkciz-container: 1100px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--umkciz-text-dark);
            background-color: var(--umkciz-bg-gray);
            line-height: 1.6;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 布局基础 */
        .umkciz-container {
            max-width: var(--umkciz-container);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .umkciz-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .umkciz-col {
            min-width: 0;
        }

        /* 导航栏 */
        .umkciz-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .umkciz-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            flex-wrap: nowrap;
        }

        .umkciz-logo {
            flex-shrink: 0;
        }

        .umkciz-logo img {
            height: 32px;
            display: block;
        }

        .umkciz-menu {
            display: flex;
            list-style: none;
            gap: 24px;
            flex-wrap: wrap;
        }

        .umkciz-menu li a {
            text-decoration: none;
            color: var(--umkciz-text-dark);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .umkciz-menu li a:hover,
        .umkciz-menu li a.active {
            color: var(--umkciz-primary);
        }

        /* Hero 区 - 独特卡片式布局 */
        .umkciz-hero {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #fff5f0 0%, #ffffff 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .umkciz-hero-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .umkciz-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            margin-bottom: 24px;
            background: linear-gradient(90deg, #ff6600, #ff9933);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .umkciz-hero p {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--umkciz-text-light);
            margin-bottom: 40px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 符号搜索预览 */
        .umkciz-search-box {
            background: var(--umkciz-white);
            padding: 8px;
            border-radius: 50px;
            display: flex;
            box-shadow: 0 20px 40px rgba(255, 102, 0, 0.1);
            max-width: 500px;
            margin: 0 auto 64px;
            border: 1px solid rgba(255, 102, 0, 0.1);
        }

        .umkciz-search-box input {
            flex: 1;
            border: none;
            padding: 0 24px;
            outline: none;
            font-size: 16px;
            border-radius: 50px;
        }

        .umkciz-search-btn {
            background: var(--umkciz-primary);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: 50px;
            cursor: pointer;
            font-weight: bold;
            transition: transform 0.2s;
        }

        .umkciz-search-btn:hover {
            background: var(--umkciz-primary-light);
            transform: scale(1.05);
        }

        /* 符号瀑布流区域 */
        .umkciz-symbol-section {
            padding: 80px 0;
        }

        .umkciz-section-title {
            margin-bottom: 48px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
        }

        .umkciz-section-title h2 {
            font-size: 28px;
            position: relative;
            padding-left: 16px;
        }

        .umkciz-section-title h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--umkciz-primary);
            border-radius: 2px;
        }

        .umkciz-symbol-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 20px;
        }

        .umkciz-symbol-card {
            background: var(--umkciz-white);
            border-radius: var(--umkciz-radius);
            padding: 24px;
            text-align: center;
            transition: all 0.3s ease;
            border: 1px solid transparent;
            cursor: pointer;
        }

        .umkciz-symbol-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--umkciz-shadow);
            border-color: rgba(255, 102, 0, 0.2);
        }

        .umkciz-symbol-icon {
            font-size: 32px;
            margin-bottom: 12px;
            display: block;
        }

        .umkciz-symbol-name {
            font-size: 14px;
            color: var(--umkciz-text-light);
            display: block;
        }

        /* 分类侧边栏布局 */
        .umkciz-category-layout {
            display: flex;
            gap: 40px;
            margin-top: 40px;
        }

        .umkciz-sidebar {
            width: 240px;
            flex-shrink: 0;
            position: sticky;
            top: 100px;
            height: fit-content;
        }

        .umkciz-cat-list {
            list-style: none;
            background: var(--umkciz-white);
            padding: 16px;
            border-radius: var(--umkciz-radius);
            box-shadow: var(--umkciz-shadow);
        }

        .umkciz-cat-item {
            padding: 12px 16px;
            margin-bottom: 4px;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.2s;
            color: var(--umkciz-text-light);
        }

        .umkciz-cat-item:hover, .umkciz-cat-item.active {
            background: rgba(255, 102, 0, 0.05);
            color: var(--umkciz-primary);
            font-weight: 600;
        }

        .umkciz-content-main {
            flex: 1;
            min-width: 0;
        }

        /* 动态内容区块标记 */
        .umkciz-news-section {
            background: #fff;
            padding: 64px 0;
            margin-top: 48px;
            border-radius: 32px 32px 0 0;
        }

        /* 底部 */
        .umkciz-footer {
            background: #1a1a1a;
            color: #888;
            padding: 80px 0 40px;
            font-size: 14px;
        }

        .umkciz-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .umkciz-footer-brand h3 {
            color: #fff;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .umkciz-footer-links h4 {
            color: #fff;
            margin-bottom: 20px;
        }

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

        .umkciz-footer-links li {
            margin-bottom: 12px;
        }

        .umkciz-footer-links a {
            color: #888;
            text-decoration: none;
            transition: color 0.3s;
        }

        .umkciz-footer-links a:hover {
            color: var(--umkciz-primary);
        }

        .umkciz-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid #333;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .umkciz-category-layout {
                flex-direction: column;
            }
            .umkciz-sidebar {
                width: 100%;
                position: static;
            }
            .umkciz-cat-list {
                display: flex;
                overflow-x: auto;
                gap: 10px;
                padding-bottom: 20px;
            }
            .umkciz-cat-item {
                white-space: nowrap;
            }
        }

        @media (max-width: 768px) {
            .umkciz-menu {
                display: none; /* 简化移动端处理 */
            }
            .umkciz-hero h1 {
                font-size: 28px;
            }
            .umkciz-symbol-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }