/* roulang page: index */
:root {
            --primary: #1F4E3D;
            --secondary: #4A7C59;
            --accent: #E07A5F;
            --bg-page: #FAF9F6;
            --text-main: #1E293B;
            --text-muted: #64748B;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
            background-color: var(--bg-page);
            color: var(--text-main);
            line-height: 1.68;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        .container-custom {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        .transition-bezier {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .badge-pulse {
            position: relative;
        }
        .badge-pulse::after {
            content: '';
            position: absolute;
            width: 8px;
            height: 8px;
            top: 50%;
            left: 12px;
            transform: translateY(-50%);
            background: #E07A5F;
            border-radius: 50%;
            animation: pulse-ring 2s infinite ease-out;
        }
        @keyframes pulse-ring {
            0% { transform: translateY(-50%) scale(0.9); opacity: 1; }
            70% { transform: translateY(-50%) scale(2.2); opacity: 0; }
            100% { opacity: 0; }
        }
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] .faq-icon {
            transform: rotate(45deg);
        }