:root {
            --primary: #ec608f;
            --primary-hover: #d94b7a;
            --primary-light: rgba(236, 96, 143, 0.08);
            --dark: #0f172a;
            --slate: #334155;
            --muted: #64748b;
            --light: #f8fafc;
            --surface: #ffffff;
            --border: #e2e8f0;
            --shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 12px 30px -4px rgba(236, 96, 143, 0.15);
            --radius: 12px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: #fcfcfd;
            color: var(--slate);
            line-height: 1.7;
            word-break: break-word;
            overflow-wrap: break-word;
            -webkit-font-smoothing: antialiased;
        }

        /* 统一外包壳结构 */
        .airspace {
            width: 100%;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* 顶部导航结构 */
        .vista {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .azimuth {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0.85rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .nose {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            min-width: 0;
            text-decoration: none;
        }

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

        .flap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.5rem;
            min-width: 0;
        }

        .rudder {
            color: var(--slate);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            border-radius: 8px;
            transition: all 0.15s ease;
            white-space: nowrap;
        }

        .rudder:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .rudder.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        /* 主容器结构 */
        .skybox {
            max-width: 1140px;
            margin: 0 auto;
            padding: 2.5rem 1.5rem 5rem 1.5rem;
            flex: 1;
            width: 100%;
        }

        /* 首屏防封号 Hero 区块 */
        .launch {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            align-items: center;
            background: linear-gradient(135deg, #ffffff 0%, #fff5f8 100%);
            border: 1px solid rgba(236, 96, 143, 0.2);
            border-radius: var(--radius);
            padding: 3rem 2.5rem;
            margin-bottom: 3.5rem;
            box-shadow: var(--shadow);
        }

        .updraft {
            flex: 1 1 480px;
            min-width: 0;
        }

        .emblem {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary-light);
            color: var(--primary);
            padding: 0.35rem 0.85rem;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
        }

        .fin {
            color: var(--dark);
            font-size: clamp(1.75rem, 3.5vw, 2.35rem);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.25rem;
            word-break: keep-all;
        }

        .apex {
            font-size: 1.05rem;
            color: var(--slate);
            margin-bottom: 1.75rem;
            line-height: 1.75;
        }

        .trail {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            flex-direction: column;
            gap: 0.85rem;
            margin-bottom: 2rem;
        }

        .trail li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            font-size: 0.98rem;
            color: var(--slate);
        }

        .crease {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            margin-top: 3px;
            fill: var(--primary);
        }

        .fleet {
            flex: 1 1 380px;
            min-width: 0;
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: 0 10px 25px rgba(0,0,0,0.08);
        }

        .fleet img {
            width: 100%;
            height: auto;
            display: block;
            object-fit: cover;
            transition: transform 0.15s ease;
        }

        .fleet:hover img {
            transform: scale(1.02);
        }

        /* 核心配置清单 (Section) */
        .zenith {
            margin-bottom: 3.5rem;
        }

        .feather {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 2.5rem auto;
        }

        .feather .fin {
            font-size: 1.85rem;
            margin-bottom: 0.75rem;
        }

        .origami {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .glider {
            flex: 1 1 300px;
            min-width: 0;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.75rem;
            box-shadow: var(--shadow);
            transition: all 0.15s ease;
            display: flex;
            flex-direction: column;
        }

        .glider:hover {
            border-color: rgba(236, 96, 143, 0.4);
            transform: translateY(-3px);
            box-shadow: var(--shadow-hover);
        }

        .biplane {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
        }

        .biplane svg {
            width: 24px;
            height: 24px;
            fill: var(--primary);
        }

        .glider h3 {
            font-size: 1.2rem;
            color: var(--dark);
            margin-bottom: 0.75rem;
            font-weight: 700;
        }

        .glider p {
            font-size: 0.95rem;
            color: var(--muted);
            line-height: 1.65;
        }

        /* 隐藏手机号步骤 (Aside) */
        .envelope {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2.5rem;
            margin-bottom: 3.5rem;
            box-shadow: var(--shadow);
        }

        .envelope .fin {
            font-size: 1.65rem;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .envelope .fin svg {
            width: 28px;
            height: 28px;
            fill: var(--primary);
        }

        .thrust {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1.5rem;
        }

        .propel {
            flex: 1 1 260px;
            min-width: 0;
            background: var(--light);
            border-left: 4px solid var(--primary);
            padding: 1.25rem 1.5rem;
            border-radius: 0 8px 8px 0;
        }

        .propel h4 {
            font-size: 1.05rem;
            color: var(--dark);
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        .propel p {
            font-size: 0.9rem;
            color: var(--slate);
        }

        /* 2FA 监控区 (Article) */
        .flick {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #ffffff;
            border-radius: var(--radius);
            padding: 3rem 2.5rem;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            margin-bottom: 2rem;
        }

        .flick .updraft {
            flex: 1 1 450px;
            min-width: 0;
        }

        .flick .fin {
            color: #ffffff;
            font-size: 1.75rem;
            margin-bottom: 1rem;
        }

        .flick .apex {
            color: #cbd5e1;
            margin-bottom: 1.5rem;
        }

        .flick .trail li {
            color: #e2e8f0;
        }

        .flick .crease {
            fill: #ec608f;
        }

        /* 内部链接引用按钮 */
        .pouch {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--primary);
            color: #ffffff;
            font-weight: 600;
            padding: 0.75rem 1.5rem;
            border-radius: 8px;
            text-decoration: none;
            transition: all 0.15s ease;
            border: none;
            cursor: pointer;
        }

        .pouch:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(236, 96, 143, 0.3);
        }

        /* 页脚区域 */
        .hangar {
            background: var(--dark);
            color: #94a3b8;
            padding: 3.5rem 1.5rem 2rem 1.5rem;
            border-top: 1px solid #1e293b;
        }

        .tarmac {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }

        .tarmac .updraft {
            flex: 1 1 300px;
            min-width: 0;
        }

        .tarmac h3 {
            color: #ffffff;
            font-size: 1.25rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .tarmac p {
            font-size: 0.9rem;
            line-height: 1.6;
            color: #94a3b8;
        }

        .landing {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 2rem;
            border-top: 1px solid #1e293b;
            text-align: center;
            font-size: 0.85rem;
            color: #64748b;
        }

        .landing a {
            color: #94a3b8;
            text-decoration: none;
            margin: 0 0.5rem;
            transition: color 0.15s ease;
        }

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

        /* 响应式断点控制 */
        @media (max-width: 768px) {
            .azimuth {
                flex-direction: column;
                gap: 1rem;
                align-items: flex-start;
            }

            .flap {
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 0.25rem;
            }

            .launch {
                padding: 1.75rem 1.25rem;
            }

            .flick {
                padding: 2rem 1.25rem;
            }

            .envelope {
                padding: 1.5rem;
            }

            .glider {
                flex: 1 1 100%;
            }
        }