:root {
            --ysa473-primary: #FF7139;
            --ysa473-primary-rgb: 255, 113, 57;
            --ysa473-secondary: #8102FF;
            --ysa473-dark: #0B0823;
            --ysa473-light: #F9F9FB;
            --ysa473-text: #20123A;
            --ysa473-gradient: linear-gradient(135deg, #FF9400 0%, #FF2B6D 50%, #8102FF 100%);
            --ysa473-container-width: 1100px;
            --ysa473-spacing: 8px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
            background-color: var(--ysa473-light);
            color: var(--ysa473-text);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .ysa473-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: calc(var(--ysa473-spacing) * 2) 0;
        }

        .ysa473-nav-container {
            max-width: var(--ysa473-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .ysa473-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .ysa473-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .ysa473-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: calc(var(--ysa473-spacing) * 2);
            min-width: 0;
        }

        .ysa473-nav-link {
            text-decoration: none;
            color: var(--ysa473-text);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .ysa473-nav-link:hover {
            color: var(--ysa473-primary);
            background: rgba(255, 113, 57, 0.05);
        }

        .ysa473-nav-link.ysa473-active {
            color: #fff;
            background: var(--ysa473-primary);
        }

        /* Hero 区块 - 独特居中环形设计 */
        .ysa473-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at top right, rgba(255, 113, 57, 0.08), transparent),
                        radial-gradient(circle at bottom left, rgba(129, 2, 255, 0.05), transparent);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .ysa473-hero-inner {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .ysa473-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 113, 57, 0.1);
            color: var(--ysa473-primary);
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .ysa473-hero h1 {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            line-height: 1.2;
            font-weight: 800;
            color: var(--ysa473-dark);
            margin-bottom: 24px;
            word-break: keep-all;
        }

        .ysa473-hero p {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: #555;
            max-width: 650px;
            margin: 0 auto 40px;
            word-break: break-word;
        }

        /* 核心重置操作区 */
        .ysa473-reset-box {
            background: #fff;
            border-radius: 32px;
            padding: 48px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.06);
            margin-top: 40px;
            border: 1px solid rgba(0,0,0,0.03);
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            text-align: left;
            align-items: center;
        }

        .ysa473-reset-content {
            flex: 1 1 350px;
            min-width: 0;
        }

        .ysa473-reset-visual {
            flex: 1 1 300px;
            min-width: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .ysa473-visual-circle {
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: var(--ysa473-gradient);
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: 0 20px 40px rgba(255, 113, 57, 0.3);
            animation: pulse 3s infinite ease-in-out;
        }

        @keyframes pulse {
            0% { transform: scale(1); opacity: 0.9; }
            50% { transform: scale(1.05); opacity: 1; }
            100% { transform: scale(1); opacity: 0.9; }
        }

        .ysa473-visual-icon {
            font-size: 60px;
            color: #fff;
        }

        .ysa473-btn-primary {
            display: inline-block;
            padding: 16px 40px;
            background: var(--ysa473-gradient);
            color: #fff;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 700;
            font-size: 1.1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 20px rgba(255, 43, 109, 0.2);
        }

        .ysa473-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 43, 109, 0.3);
        }

        /* 详情列表 Grid */
        .ysa473-section {
            padding: 80px 24px;
            max-width: var(--ysa473-container-width);
            margin: 0 auto;
        }

        .ysa473-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .ysa473-card {
            background: #fff;
            padding: 32px;
            border-radius: 24px;
            transition: all 0.3s ease;
            border: 1px solid rgba(0,0,0,0.04);
            word-break: break-word;
        }

        .ysa473-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .ysa473-card h3 {
            margin-bottom: 16px;
            color: var(--ysa473-dark);
            font-size: 1.4rem;
        }

        .ysa473-card ul {
            list-style: none;
        }

        .ysa473-card ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            color: #666;
        }

        .ysa473-card ul li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--ysa473-primary);
            font-weight: bold;
        }

        /* 动态内容区块标记 */
        .ysa473-news-section {
            background: #fff;
            padding: 64px 24px;
            border-radius: 40px;
            margin: 40px auto;
        }

        /* 页脚 */
        .ysa473-footer {
            background: var(--ysa473-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 80px 24px 40px;
        }

        .ysa473-footer-container {
            max-width: var(--ysa473-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .ysa473-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .ysa473-footer-brand h2 {
            color: #fff;
            margin-bottom: 16px;
            font-size: 1.5rem;
        }

        .ysa473-footer-links {
            flex: 2 1 500px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
            min-width: 0;
        }

        .ysa473-footer-column h4 {
            color: #fff;
            margin-bottom: 20px;
            font-size: 1rem;
        }

        .ysa473-footer-column a {
            display: block;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            margin-bottom: 12px;
            transition: color 0.3s;
        }

        .ysa473-footer-column a:hover {
            color: var(--ysa473-primary);
        }

        .ysa473-footer-bottom {
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            font-size: 0.85rem;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .ysa473-nav-menu {
                display: none; /* 简化移动端演示 */
            }
            .ysa473-hero {
                padding-top: 120px;
            }
            .ysa473-reset-box {
                padding: 32px;
            }
            .ysa473-visual-circle {
                width: 150px;
                height: 150px;
            }
        }