/* roulang page: index */
:root {
            --primary: #10B981;
            --primary-neon: #00F59B;
            --dark-surface: #0B0F19;
            --dark-card: #151D2F;
            --text-main: #0F172A;
            --text-sub: #475569;
            --border-light: #E2E8F0;
            --accent-orange: #FF5722;
        }

        body {
            font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--text-main);
            background-color: #FFFFFF;
            line-height: 1.8;
            letter-spacing: 0.01em;
            overflow-x: hidden;
        }

        /* 滚动条与基础交互微调 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0B0F19;
        }
        ::-webkit-scrollbar-thumb {
            background: #1E293B;
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #10B981;
        }

        .hero-bg {
            background-image: linear-gradient(to right, rgba(11, 15, 25, 0.95), rgba(11, 15, 25, 0.85)), url('/assets/images/8f1000ad8b56d5aa.png');
            background-size: cover;
            background-position: center;
        }

        .dark-section-bg {
            background-image: radial-gradient(circle at 50% 0%, #1a2538 0%, #0B0F19 80%);
        }

        .glass-panel {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(226, 232, 240, 0.8);
        }

        .glass-panel-dark {
            background: rgba(21, 29, 47, 0.8);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .tab-btn.active {
            background-color: #10B981;
            color: #FFFFFF;
            border-color: #10B981;
        }