:root {
            --t1207-primary: #FF7139;
            --t1207-secondary: #9059FF;
            --t1207-dark: #20123A;
            --t1207-light: #F9F9FB;
            --t1207-accent: #0060DF;
            --t1207-text: #15141A;
            --t1207-white: #FFFFFF;
            --t1207-spacing: 8px;
            --t1207-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--t1207-text);
            background-color: var(--t1207-white);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* 布局规范 */
        .t1207-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航系统 - 浮动式岛屿布局 */
        .t1207-nav-wrapper {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 95%;
            max-width: 1100px;
            z-index: 1000;
            transition: var(--t1207-transition);
        }

        .t1207-navbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            padding: 12px 24px;
            border-radius: 50px;
            box-shadow: 0 8px 32px rgba(32, 18, 58, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .t1207-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .t1207-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .t1207-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 4px;
            min-width: 0;
        }

        .t1207-menu-item a {
            text-decoration: none;
            color: var(--t1207-dark);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 20px;
            transition: var(--t1207-transition);
            white-space: nowrap;
        }

        .t1207-menu-item a:hover {
            background: rgba(255, 113, 57, 0.1);
            color: var(--t1207-primary);
        }

        .t1207-menu-item a.t1207-active {
            background: var(--t1207-primary);
            color: var(--t1207-white);
        }

        /* Hero 区块 - 动态分层布局 */
        .t1207-hero {
            padding: 180px 0 96px;
            background: radial-gradient(circle at 90% 10%, rgba(255, 113, 57, 0.15) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(144, 89, 255, 0.1) 0%, transparent 40%);
            text-align: center;
            position: relative;
        }

        .t1207-hero-content {
            max-width: 800px;
            margin: 0 auto;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        .t1207-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--t1207-dark);
            margin-bottom: 24px;
            letter-spacing: -1px;
            white-space: normal;
        }

        .t1207-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: #5b5b5b;
            margin-bottom: 48px;
            max-width: 650px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.8;
        }

        .t1207-cta-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            min-width: 0;
        }

        .t1207-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 18px 42px;
            border-radius: 12px;
            font-size: 18px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--t1207-transition);
            cursor: pointer;
            border: none;
        }

        .t1207-btn-primary {
            background: linear-gradient(135deg, var(--t1207-primary), #FF9500);
            color: var(--t1207-white);
            box-shadow: 0 10px 20px rgba(255, 113, 57, 0.3);
        }

        .t1207-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(255, 113, 57, 0.4);
        }

        /* 核心特性 - Grid 布局 */
        .t1207-section {
            padding: 96px 0;
            overflow: hidden;
        }

        .t1207-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            margin-bottom: 64px;
            text-align: center;
            font-weight: 700;
        }

        .t1207-feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            min-width: 0;
        }

        .t1207-feature-card {
            background: var(--t1207-light);
            padding: 48px;
            border-radius: 24px;
            transition: var(--t1207-transition);
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .t1207-feature-card:hover {
            background: var(--t1207-white);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            transform: translateY(-10px);
        }

        .t1207-card-icon {
            width: 56px;
            height: 56px;
            background: var(--t1207-white);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.05);
        }

        .t1207-feature-card h3 {
            font-size: 24px;
            color: var(--t1207-dark);
            word-break: keep-all;
        }

        /* 独特的装饰区块 */
        .t1207-split-view {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            background: var(--t1207-dark);
            color: var(--t1207-white);
            padding: 80px;
            border-radius: 40px;
            margin: 64px 0;
        }

        .t1207-split-text {
            flex: 1;
            min-width: 300px;
        }

        .t1207-split-text h2 {
            font-size: 36px;
            margin-bottom: 24px;
            color: var(--t1207-primary);
        }

        .t1207-split-visual {
            flex: 1;
            min-width: 300px;
            position: relative;
            height: 300px;
            background: linear-gradient(45deg, rgba(255,255,255,0.05), transparent);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px dashed rgba(255,255,255,0.2);
        }

        .t1207-visual-circle {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            background: var(--t1207-primary);
            filter: blur(40px);
            animation: t1207-pulse 4s infinite alternate;
        }

        @keyframes t1207-pulse {
            from { transform: scale(1); opacity: 0.5; }
            to { transform: scale(1.3); opacity: 0.8; }
        }

        /* 页脚设计 */
        .t1207-footer {
            background: var(--t1207-light);
            padding: 80px 0 40px;
            margin-top: 96px;
        }

        .t1207-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .t1207-footer-brand h4 {
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--t1207-dark);
        }

        .t1207-footer-links h5 {
            margin-bottom: 24px;
            font-size: 16px;
            color: var(--t1207-dark);
        }

        .t1207-footer-links ul {
            list-style: none;
        }

        .t1207-footer-links li {
            margin-bottom: 12px;
        }

        .t1207-footer-links a {
            text-decoration: none;
            color: #666;
            transition: var(--t1207-transition);
        }

        .t1207-footer-links a:hover {
            color: var(--t1207-primary);
        }

        .t1207-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            font-size: 14px;
            color: #888;
        }

        /* 响应式断点 */
        @media (max-width: 992px) {
            .t1207-menu {
                display: none; /* 简化演示：移动端可隐藏或改为汉堡菜单 */
            }
            .t1207-split-view {
                padding: 40px;
            }
        }

        @media (max-width: 768px) {
            .t1207-navbar {
                border-radius: 20px;
                padding: 10px 16px;
            }
            .t1207-hero {
                padding: 140px 0 64px;
            }
            .t1207-feature-grid {
                grid-template-columns: 1fr;
            }
            .t1207-split-view {
                flex-direction: column;
            }
        }