/* roulang page: index */
:root {
            --primary-pine: #064E3B;
            --primary-dark: #0F172A;
            --accent-amber: #D97706;
            --bg-light: #F8FAFC;
            --text-main: #1E293B;
            --text-muted: #475569;
            --border-soft: #E2E8F0;
        }

        html {
            scroll-behavior: smooth;
        }

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

        /* 极简高端排版微交互系统 */
        .editorial-title {
            letter-spacing: -0.025em;
            font-feature-settings: "palt" 1;
        }

        .code-window {
            background-color: #0d1117;
            border: 1px solid #30363d;
            border-radius: 12px;
            box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.4);
        }

        .card-elevated {
            transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-elevated:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 30px -10px rgba(15, 23, 42, 0.08);
        }

        /* 移动端与交互优化 */
        .touch-action-manipulation {
            touch-action: manipulation;
        }