:root {
            --primary: #a668d9;
            --primary-dark: #8c49bf;
            --primary-light: #c494eb;
            --bg: #0d0a14;
            --surface: #171224;
            --surface-border: #2a223d;
            --text-main: #f0ecf7;
            --text-sub: #a79cb8;
            --accent: #34d399;
            --warning: #f59e0b;
            --danger: #ef4444;
            --radius: 9px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --transition: all 0.35s ease;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: var(--bg);
            color: var(--text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.7;
            word-break: break-word;
            overflow-wrap: break-word;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        .airspace {
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 Header (Seal) */
        .seal {
            background: rgba(23, 18, 36, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--surface-border);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 0;
        }

        .seal .airspace {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .beak {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .beak img {
            height: 38px;
            width: auto;
            display: block;
        }

        .runway {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
        }

        .apex {
            padding: 8px 16px;
            font-size: 0.95rem;
            color: var(--text-sub);
            border-radius: var(--radius);
            transition: var(--transition);
            min-width: 0;
        }

        .apex:hover {
            color: var(--primary-light);
            background: rgba(166, 104, 217, 0.1);
        }

        .apex.active {
            color: #ffffff;
            background: var(--primary);
            font-weight: 600;
        }

        /* 主容器 Main (Hangar) */
        .hangar {
            padding-bottom: 60px;
        }

        /* Hero展示区 Section (Apogee) */
        .apogee {
            padding: 70px 0 50px;
            text-align: center;
            background: radial-gradient(circle at 50% 20%, rgba(166, 104, 217, 0.18) 0%, rgba(13, 10, 20, 0) 70%);
        }

        .streak-apogee {
            font-size: 2.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        .flock-apogee {
            font-size: 1.15rem;
            color: var(--text-sub);
            max-width: 780px;
            margin: 0 auto 35px;
        }

        .ply-apogee {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
            margin-bottom: 40px;
        }

        .thrust-hangar {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #ffffff;
            padding: 14px 32px;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: var(--radius);
            box-shadow: 0 6px 20px rgba(166, 104, 217, 0.4);
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .thrust-hangar:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(166, 104, 217, 0.6);
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
        }

        .feather {
            width: 22px;
            height: 22px;
            fill: currentColor;
            flex-shrink: 0;
        }

        .vector-apogee {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-top: 30px;
        }

        .crease-feature {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius);
            padding: 20px;
            flex: 1;
            min-width: 260px;
            max-width: 350px;
            text-align: left;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .crease-feature:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
        }

        .streak-sub {
            font-size: 1.1rem;
            color: #ffffff;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .flock-sub {
            font-size: 0.92rem;
            color: var(--text-sub);
        }

        /* 流程说明区 Section (Strato) */
        .strato {
            padding: 60px 0;
            background: rgba(23, 18, 36, 0.4);
            border-top: 1px solid var(--surface-border);
            border-bottom: 1px solid var(--surface-border);
        }

        .streak-hangar {
            font-size: 1.9rem;
            text-align: center;
            color: #ffffff;
            margin-bottom: 15px;
        }

        .flock-desc {
            text-align: center;
            color: var(--text-sub);
            max-width: 680px;
            margin: 0 auto 45px;
            font-size: 1rem;
        }

        .vector-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }

        .glider-step {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius);
            padding: 30px 24px;
            flex: 1;
            min-width: 280px;
            position: relative;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .glider-step:hover {
            border-color: var(--primary-light);
            transform: translateY(-3px);
        }

        .dart-loft {
            display: inline-block;
            background: rgba(166, 104, 217, 0.15);
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 16px;
            border: 1px solid rgba(166, 104, 217, 0.3);
        }

        /* 风险警示区 Article (Launch) */
        .launch {
            padding: 70px 0;
        }

        .glider-warning {
            background: linear-gradient(180deg, rgba(23, 18, 36, 0.9) 0%, rgba(30, 20, 45, 0.9) 100%);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: var(--radius);
            padding: 40px;
            box-shadow: var(--shadow);
        }

        .streak-warning {
            color: var(--warning);
            font-size: 1.6rem;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .vector-risk {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 25px;
        }

        .leaflet-risk {
            background: rgba(13, 10, 20, 0.6);
            border: 1px solid var(--surface-border);
            padding: 20px;
            border-radius: var(--radius);
            flex: 1;
            min-width: 250px;
        }

        .leaflet-risk h4 {
            color: #ffffff;
            margin-bottom: 8px;
            font-size: 1.05rem;
        }

        .leaflet-risk p {
            color: var(--text-sub);
            font-size: 0.9rem;
        }

        /* 问题排查区 Div (Canopy) */
        .canopy {
            padding: 50px 0 30px;
        }

        .ply-faq {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 35px;
        }

        .crease-faq {
            background: var(--surface);
            border: 1px solid var(--surface-border);
            border-radius: var(--radius);
            padding: 24px;
            flex: 1;
            min-width: 320px;
            max-width: 550px;
        }

        .streak-faq {
            font-size: 1.15rem;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .flock-faq {
            color: var(--text-sub);
            font-size: 0.94rem;
        }

        /* 页脚 Footer (Vista) */
        .vista {
            background: #08060d;
            border-top: 1px solid var(--surface-border);
            padding: 45px 0 35px;
            color: var(--text-sub);
        }

        .vista .airspace {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }

        .tarmac {
            min-width: 0;
            max-width: 500px;
        }

        .horizon {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            display: block;
            margin-bottom: 8px;
        }

        .landing {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
        }

        .landing .apex {
            padding: 6px 12px;
            font-size: 0.88rem;
        }

        .landing .apex:hover {
            color: #ffffff;
            background: rgba(166, 104, 217, 0.2);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .seal .airspace {
                flex-direction: column;
                gap: 15px;
            }

            .runway {
                justify-content: center;
                width: 100%;
            }

            .streak-apogee {
                font-size: 1.8rem;
            }

            .flock-apogee {
                font-size: 1rem;
            }

            .glider-step,
            .crease-feature,
            .leaflet-risk,
            .crease-faq {
                min-width: 100%;
            }

            .vista .airspace {
                flex-direction: column;
                text-align: center;
            }

            .landing {
                justify-content: center;
            }
        }