:root {
            --aamo7-primary: #ff6600;
            --aamo7-primary-hover: #e65c00;
            --aamo7-secondary: #2c3e50;
            --aamo7-bg-light: #f8fafc;
            --aamo7-text-main: #1a1a1a;
            --aamo7-text-muted: #64748b;
            --aamo7-white: #ffffff;
            --aamo7-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --aamo7-radius: 16px;
            --aamo7-spacing: 8px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            color: var(--aamo7-text-main);
            background-color: var(--aamo7-bg-light);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Layout Containers */
        .aamo7-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 calc(var(--aamo7-spacing) * 3);
            width: 100%;
        }

        /* Typography */
        h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.2; font-weight: 800; margin-bottom: 24px; }
        h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 32px; text-align: center; }
        h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; margin-bottom: 16px; }
        p { font-size: 1.1rem; color: var(--aamo7-text-muted); margin-bottom: 16px; overflow-wrap: break-word; }

        /* Navigation */
        .aamo7-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .aamo7-nav-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            width: 100%;
        }

        .aamo7-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        .aamo7-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .aamo7-menu a {
            text-decoration: none;
            color: var(--aamo7-text-main);
            font-weight: 500;
            transition: color 0.3s;
            font-size: 0.95rem;
        }

        .aamo7-menu a:hover {
            color: var(--aamo7-primary);
        }

        /* Hero Section */
        .aamo7-hero {
            padding: 160px 0 96px;
            background: radial-gradient(circle at 80% 20%, rgba(255, 102, 0, 0.05) 0%, transparent 50%);
            text-align: center;
        }

        .aamo7-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .aamo7-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 102, 0, 0.1);
            color: var(--aamo7-primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            margin-bottom: 24px;
        }

        /* Download Section */
        .aamo7-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            padding: 64px 0;
        }

        .aamo7-download-card {
            background: var(--aamo7-white);
            border-radius: var(--aamo7-radius);
            overflow: hidden;
            box-shadow: var(--aamo7-shadow);
            transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .aamo7-download-card:hover {
            transform: translateY(-10px);
        }

        .aamo7-card-img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        .aamo7-card-body {
            padding: 32px;
            flex-grow: 1;
        }

        .aamo7-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            background: var(--aamo7-primary);
            color: var(--aamo7-white);
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            width: 100%;
            font-size: 1.1rem;
        }

        .aamo7-btn:hover {
            background: var(--aamo7-primary-hover);
            box-shadow: 0 8px 20px rgba(255, 102, 0, 0.3);
        }

        .aamo7-btn-outline {
            background: transparent;
            border: 2px solid var(--aamo7-primary);
            color: var(--aamo7-primary);
            margin-top: 16px;
        }

        .aamo7-btn-outline:hover {
            background: var(--aamo7-primary);
            color: var(--aamo7-white);
        }

        /* Ecosystem Matrix */
        .aamo7-matrix-section {
            background: var(--aamo7-secondary);
            color: var(--aamo7-white);
            padding: 96px 0;
            border-radius: 40px;
            margin: 48px 24px;
        }

        .aamo7-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 40px;
            margin-top: 48px;
        }

        .aamo7-matrix-item {
            padding: 32px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            min-width: 0;
        }

        .aamo7-matrix-item h3 { color: var(--aamo7-primary); }
        .aamo7-matrix-item ul { list-style: none; margin-top: 16px; }
        .aamo7-matrix-item li { font-size: 0.95rem; margin-bottom: 8px; opacity: 0.8; }

        /* History Section */
        .aamo7-history-box {
            position: relative;
            padding: 96px 0;
            background: url('images/version_history.jpg') center/cover no-repeat;
            border-radius: var(--aamo7-radius);
            overflow: hidden;
            margin: 64px 0;
        }

        .aamo7-history-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(255,255,255,0.95) 30%, rgba(255,255,255,0.6) 100%);
        }

        .aamo7-history-content {
            position: relative;
            z-index: 2;
            max-width: 600px;
            padding: 48px;
        }

        /* Footer */
        .aamo7-footer {
            background: #fff;
            padding: 64px 0 32px;
            border-top: 1px solid #eee;
        }

        .aamo7-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            justify-content: space-between;
            margin-bottom: 48px;
        }

        .aamo7-footer-brand {
            flex: 1;
            min-width: 240px;
        }

        .aamo7-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .aamo7-footer-col h4 {
            font-size: 1rem;
            margin-bottom: 24px;
            color: var(--aamo7-text-main);
        }

        .aamo7-footer-col ul {
            list-style: none;
        }

        .aamo7-footer-col li {
            margin-bottom: 12px;
        }

        .aamo7-footer-col a {
            text-decoration: none;
            color: var(--aamo7-text-muted);
            font-size: 0.9rem;
            transition: color 0.3s;
        }

        .aamo7-footer-col a:hover {
            color: var(--aamo7-primary);
        }

        .aamo7-copyright {
            text-align: center;
            padding-top: 32px;
            border-top: 1px solid #f1f1f1;
            font-size: 0.85rem;
            color: var(--aamo7-text-muted);
        }

        /* Mobile Adjustments */
        @media (max-width: 768px) {
            .aamo7-header { height: auto; padding: 16px 0; }
            .aamo7-menu { display: none; } /* Simplified for demo */
            .aamo7-hero { padding: 120px 0 64px; }
            .aamo7-matrix-section { margin: 24px 12px; padding: 48px 0; }
            .aamo7-history-content { padding: 24px; }
            .aamo7-footer-links { gap: 32px; }
        }