:root {
            --primary: #a668d9;
            --primary-dark: #8c4cc0;
            --primary-light: #bf8deb;
            --primary-glow: rgba(166, 104, 217, 0.18);
            --bg: #0b0d14;
            --bg-alt: #131622;
            --surface: #191d2d;
            --surface-hover: #22283d;
            --border: rgba(166, 104, 217, 0.22);
            --text-main: #f3f2fc;
            --text-sub: #9ea4c1;
            --radius: 9px;
            --transition: 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, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.65;
            word-break: break-word;
            overflow-wrap: break-word;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: #ffffff;
        }

        /* 顶部导航 Header */
        .seal {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 13, 20, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .airway {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            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;
        }

        .rudder {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            min-width: 0;
        }

        .apex {
            padding: 8px 16px;
            border-radius: var(--radius);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all var(--transition);
        }

        .apex:hover,
        .apex.active {
            color: #ffffff;
            background: var(--surface);
            box-shadow: inset 0 0 0 1px var(--border);
        }

        .apex.active {
            color: var(--primary-light);
            border-bottom: 2px solid var(--primary);
        }

        /* 版心容器 Main */
        .hangar {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 24px 80px;
            min-width: 0;
        }

        /* 区块 1: Download Hero / Acquire */
        .apogee {
            background: linear-gradient(135deg, rgba(25, 29, 45, 0.9) 0%, rgba(19, 22, 34, 0.95) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 48px 36px;
            margin-bottom: 48px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            align-items: center;
        }

        .strato {
            flex: 1;
            min-width: 300px;
        }

        .leaflet {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: var(--primary-glow);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 13px;
            color: var(--primary-light);
            margin-bottom: 20px;
            font-weight: 600;
        }

        h1.streak {
            font-size: 38px;
            line-height: 1.25;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        h2.streak {
            font-size: 24px;
            line-height: 1.35;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .flock {
            font-size: 16px;
            color: var(--text-sub);
            margin-bottom: 28px;
            max-width: 640px;
            line-height: 1.7;
        }

        .launch {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .thrust {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 28px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #ffffff;
            font-weight: 600;
            font-size: 16px;
            border-radius: var(--radius);
            box-shadow: 0 6px 20px rgba(166, 104, 217, 0.35);
            transition: all var(--transition);
        }

        .thrust:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(166, 104, 217, 0.5);
            color: #ffffff;
        }

        .flick {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-main);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .flick:hover {
            background: var(--surface-hover);
            border-color: var(--primary-light);
            color: #ffffff;
        }

        .beacon {
            flex: 1;
            min-width: 280px;
            display: flex;
            justify-content: center;
        }

        .beacon img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid var(--border);
        }

        /* 区块 2: Binary Matrix Table / Comparison */
        .airspace {
            margin-bottom: 48px;
        }

        .dart {
            margin-bottom: 24px;
        }

        .ply {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .glider {
            flex: 1 1 calc(50% - 12px);
            min-width: 300px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .glider:hover {
            border-color: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(166, 104, 217, 0.15);
        }

        .crease {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .feather {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            background: var(--primary-glow);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            flex-shrink: 0;
        }

        .stream {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
            border-bottom: 1px dashed rgba(166, 104, 217, 0.15);
            font-size: 14px;
        }

        .stream:last-child {
            border-bottom: none;
        }

        .impulse {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .vector {
            width: 100%;
            margin-top: 32px;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
        }

        .vector img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* 区块 3: Article / Checksum Guide */
        article.crease-box {
            background: var(--bg-alt);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px;
            margin-bottom: 48px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.25);
        }

        .script {
            background: #07090e;
            border: 1px solid rgba(166, 104, 217, 0.3);
            border-radius: 6px;
            padding: 16px 20px;
            font-family: "Courier New", Courier, monospace;
            font-size: 14px;
            color: #d1d5db;
            overflow-x: auto;
            margin: 16px 0 24px;
            line-height: 1.5;
        }

        .script span.keyword {
            color: var(--primary-light);
        }

        .script span.hash {
            color: #34d399;
        }

        /* 区块 4: Aside / System Requirements FAQ */
        aside.canopy {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        }

        details.stream-faq {
            border-bottom: 1px solid rgba(166, 104, 217, 0.15);
            padding: 14px 0;
        }

        details.stream-faq:last-child {
            border-bottom: none;
        }

        summary.streak-faq {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        summary.streak-faq::-webkit-details-marker {
            display: none;
        }

        summary.streak-faq::after {
            content: "+";
            font-size: 20px;
            color: var(--primary-light);
            transition: transform var(--transition);
        }

        details[open] summary.streak-faq::after {
            content: "−";
            transform: rotate(180deg);
        }

        .flock-faq {
            margin-top: 12px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* 页脚 Footer */
        .vista {
            background: #06070a;
            border-top: 1px solid var(--border);
            padding: 48px 24px 32px;
        }

        .tarmac {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 36px;
            justify-content: space-between;
        }

        .horizon {
            flex: 1 1 240px;
            min-width: 0;
        }

        .horizon h3 {
            font-size: 18px;
            color: #ffffff;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .horizon p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 12px;
        }

        .horizon ul {
            list-style: none;
        }

        .horizon li {
            margin-bottom: 8px;
        }

        .horizon a {
            font-size: 14px;
            color: var(--text-sub);
        }

        .horizon a:hover {
            color: var(--primary-light);
        }

        .landing {
            max-width: 1200px;
            margin: 36px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 13px;
            color: var(--text-sub);
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .airway {
                height: auto;
                padding: 14px 16px;
                flex-direction: column;
                gap: 12px;
            }

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

            .apogee {
                padding: 24px 20px;
            }

            h1.streak {
                font-size: 28px;
            }

            .glider {
                flex: 1 1 100%;
            }

            article.crease-box,
            aside.canopy {
                padding: 24px 18px;
            }
        }