/* roulang page: index */
:root {
            --primary: #2563eb;
            --primary-hover: #1d4ed8;
            --accent: #ef4444;
            --bg-light: #f8fafc;
            --text-dark: #0f172a;
            --text-muted: #64748b;
            --border-color: #e2e8f0;
        }

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

        /* 斜切 Hero 造型 */
        .slanted-hero {
            position: relative;
            background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #172554 100%);
            clip-path: polygon(0 0, 100% 0, 100% 95%, 0 100%);
            padding-bottom: 7rem;
        }

        @media (max-width: 768px) {
            .slanted-hero {
                clip-path: polygon(0 0, 100% 0, 100% 98%, 0 100%);
                padding-bottom: 4rem;
            }
        }

        /* 进度步骤导航条 */
        .step-progress-bar {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
        }

        .step-item {
            position: relative;
            transition: all 0.25s ease;
        }

        .step-item::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-top: 5px solid transparent;
            border-bottom: 5px solid transparent;
            border-left: 6px solid #cbd5e1;
        }

        .step-item:last-child::after {
            display: none;
        }

        /* 卡片柔和阴影 */
        .card-custom-shadow {
            box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.03);
            border: 1px solid #f1f5f9;
        }

        .card-custom-shadow:hover {
            box-shadow: 0 20px 30px -10px rgba(37, 99, 235, 0.12), 0 10px 10px -5px rgba(15, 23, 42, 0.04);
            transform: translateY(-3px);
            border-color: #bfdbfe;
        }

        /* 渐变文本 */
        .text-gradient {
            background: linear-gradient(135deg, #60a5fa 0%, #ffffff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }