/* roulang page: index */
:root {
            --primary-dark: #0B5C3A;
            --primary-light: #10B981;
            --accent-gold: #F59E0B;
            --bg-base: #F8FAFC;
            --card-border: rgba(226, 232, 240, 0.85);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            background-color: var(--bg-base);
            color: #0F172A;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            overflow-x: hidden;
        }

        /* 隐藏水平滚动条但保留平滑横滚 */
        .no-scrollbar::-webkit-scrollbar {
            display: none;
        }
        .no-scrollbar {
            -ms-overflow-style: none;
            scrollbar-width: none;
        }

        /* 卡片基础动效与边框 */
        .card-custom {
            border-radius: 24px;
            border: 1px solid var(--card-border);
            box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.04);
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 35px -5px rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.4);
        }

        /* 渐变高光文案 */
        .gradient-text-pitch {
            background: linear-gradient(135deg, #0B5C3A 0%, #10B981 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .gradient-text-gold {
            background: linear-gradient(135deg, #B45309 0%, #F59E0B 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        /* 胶囊 Chip 导航激活态微光晕 */
        .chip-active {
            background: linear-gradient(135deg, #0B5C3A 0%, #10B981 100%);
            color: #ffffff;
            box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
        }

        /* 手风琴原生平滑展开 */
        details summary::-webkit-details-marker {
            display: none;
        }
        details[open] summary svg {
            transform: rotate(180deg);
        }