/* ============================================
           SafeW 安全中心页样式
           版本: 1.0.0
           描述: 深色科技风 | 粒子背景 | 2026新版安全解析
           ============================================ */
        :root {
            --bg-deep: #080c1a;
            --bg-elevated: rgba(255, 255, 255, 0.03);
            --bg-elevated-hover: rgba(255, 255, 255, 0.06);
            --border-subtle: rgba(255, 255, 255, 0.06);
            --border-active: rgba(0, 212, 255, 0.35);
            --text-primary: #e8f0f8;
            --text-secondary: rgba(255, 255, 255, 0.55);
            --text-tertiary: rgba(255, 255, 255, 0.35);
            --text-muted: rgba(255, 255, 255, 0.2);
            --accent-cyan: #00d4ff;
            --accent-blue: #4a9eff;
            --accent-purple: #7b61ff;
            --accent-green: #4ade80;
            --accent-red: #f87171;
            --accent-yellow: #fbbf24;
            --gradient-primary: linear-gradient(135deg, #00d4ff, #4a9eff);
            --gradient-logo: linear-gradient(135deg, #00d4ff, #7b61ff);
            --gradient-text-hero: linear-gradient(135deg, #ffffff 20%, #00d4ff 100%);
            --shadow-card-hover: 0 20px 60px rgba(0, 0, 0, 0.45);
            --shadow-btn-glow: 0 10px 50px rgba(0, 212, 255, 0.35);
            --radius-card: 20px;
            --radius-btn: 40px;
            --transition-fast: 0.25s ease;
            --transition-smooth: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', 'JetBrains Mono', monospace;
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            overflow-x: hidden;
            min-height: 100vh;
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            text-rendering: optimizeLegibility;
        }
        img,
        svg {
            display: block;
            max-width: 100%;
            height: auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        #particle-canvas {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 0;
            pointer-events: none;
            background: radial-gradient(ellipse at 50% 0%, #0a1025 0%, var(--bg-deep) 65%);
        }
        .site-wrapper {
            position: relative;
            z-index: 1;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            border-bottom: 1px solid rgba(0, 212, 255, 0.07);
            position: relative;
            z-index: 10;
        }
        .logo-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-wrapper svg {
            display: block;
            width: 38px;
            height: 38px;
            transition: transform var(--transition-smooth);
        }
        .logo-wrapper:hover svg {
            transform: rotate(-3deg) scale(1.05);
        }
        .logo-text {
            font-size: 24px;
            font-weight: 700;
            letter-spacing: 1.5px;
            background: var(--gradient-logo);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1;
        }
        .logo-text span {
            font-size: 11px;
            font-weight: 400;
            -webkit-text-fill-color: rgba(255, 255, 255, 0.35);
            background: none;
            margin-left: 4px;
            letter-spacing: 2px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        nav a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 14px;
            font-weight: 400;
            transition: color var(--transition-fast), border-color var(--transition-fast);
            padding: 4px 0;
            border-bottom: 2px solid transparent;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }
        nav a:hover,
        nav a.active {
            color: var(--accent-cyan);
            border-bottom-color: var(--accent-cyan);
        }
        .nav-dropdown {
            position: relative;
            display: flex;
            align-items: center;
        }
        .nav-dropdown-btn {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            font-weight: 400;
            padding: 4px 0;
            letter-spacing: 0.3px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 4px;
            cursor: pointer;
        }
        .nav-dropdown-btn:hover {
            color: var(--accent-cyan);
        }
        .dropdown-arrow {
            font-size: 10px;
            transition: transform var(--transition-fast);
        }
        .nav-dropdown.dropdown-open .dropdown-arrow {
            transform: rotate(180deg);
        }
        .nav-dropdown-content {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(8px);
            min-width: 180px;
            background: rgba(10, 16, 35, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(0, 212, 255, 0.12);
            border-radius: 14px;
            padding: 8px 0;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            z-index: 50;
        }
        .nav-dropdown.dropdown-open .nav-dropdown-content {
            opacity: 1;
            visibility: visible;
            pointer-events: auto;
            transform: translateX(-50%) translateY(6px);
        }
        .nav-dropdown-content a {
            display: block;
            padding: 10px 18px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            border-bottom: none !important;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .nav-dropdown-content a:hover {
            background: rgba(0, 212, 255, 0.08);
            color: var(--accent-cyan);
        }
        .nav-cta {
            background: var(--gradient-primary);
            color: #080c1a !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-btn);
            font-weight: 600;
            border-bottom: none !important;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
            font-size: 14px !important;
            -webkit-text-fill-color: #080c1a !important;
            letter-spacing: 0.3px;
        }
        .nav-cta:hover {
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
        }
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 4px;
            z-index: 100;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        main {
            padding: 10px 0 0;
        }

        /* Hero 区域 */
        .security-hero {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 40px;
            align-items: center;
            padding: 30px 0 40px;
            min-height: 70vh;
        }
        .security-hero-content h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 10px;
            background: var(--gradient-text-hero);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        .security-hero-content .subtitle {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.45);
            font-weight: 400;
            margin-bottom: 6px;
            letter-spacing: 4px;
            text-transform: uppercase;
        }
        .security-hero-content .tagline {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            font-weight: 400;
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .security-hero-content .description {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 26px;
            max-width: 540px;
        }
        .security-hero-content .description strong {
            color: var(--accent-cyan);
            font-weight: 500;
        }
        .security-hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }
        .btn-primary {
            background: var(--gradient-primary);
            color: #080c1a;
            padding: 14px 34px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: transform var(--transition-smooth), box-shadow var(--transition-smooth);
            -webkit-text-fill-color: #080c1a;
            letter-spacing: 0.2px;
            position: relative;
            overflow: hidden;
        }
        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
            transition: left 0.6s ease;
        }
        .btn-primary:hover::before {
            left: 100%;
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-btn-glow);
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
            padding: 14px 30px;
            border-radius: var(--radius-btn);
            font-weight: 500;
            font-size: 15px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(0, 212, 255, 0.4);
            transform: translateY(-2px);
        }
        .hero-trust-badges {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-tertiary);
            letter-spacing: 0.3px;
        }
        .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
            animation: badge-pulse 2s ease-in-out infinite;
        }
        @keyframes badge-pulse {
            0%,
            100% {
                box-shadow: 0 0 6px rgba(0, 212, 255, 0.4);
            }
            50% {
                box-shadow: 0 0 14px rgba(0, 212, 255, 0.8);
            }
        }
        .security-hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .security-shield-visual {
            width: 100%;
            max-width: 360px;
            background: rgba(10, 16, 35, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(0, 212, 255, 0.15);
            border-radius: 24px;
            padding: 28px;
            text-align: center;
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 50px rgba(0, 212, 255, 0.04);
        }
        .shield-large {
            font-size: 64px;
            margin-bottom: 12px;
        }
        .security-visual-title {
            font-size: 20px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
        }
        .security-visual-sub {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .security-meter {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .meter-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .meter-label {
            font-size: 12px;
            color: var(--text-tertiary);
            width: 80px;
            text-align: left;
        }
        .meter-bar {
            flex: 1;
            height: 8px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 4px;
            overflow: hidden;
        }
        .meter-fill {
            height: 100%;
            border-radius: 4px;
            background: var(--gradient-primary);
        }

        .glow-line {
            width: 100%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.15), transparent);
            margin: 10px 0 20px;
        }

        /* 技术内核解析 */
        .tech-core {
            padding: 30px 0 20px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #ffffff, #00d4ff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.3px;
        }
        .section-sub {
            color: rgba(255, 255, 255, 0.4);
            font-size: 15px;
            font-weight: 300;
            margin-bottom: 30px;
            letter-spacing: 0.5px;
        }
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 20px;
            margin-top: 8px;
        }
        .tech-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth), background var(--transition-fast);
            position: relative;
        }
        .tech-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-active);
            box-shadow: var(--shadow-card-hover);
            background: var(--bg-elevated-hover);
        }
        .tech-icon {
            font-size: 32px;
            margin-bottom: 10px;
        }
        .tech-name {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .tech-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 新版功能亮点 */
        .new-features {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .highlight-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 18px;
            margin-top: 10px;
        }
        .highlight-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: 16px;
            padding: 20px 18px;
            position: relative;
            transition: border-color var(--transition-fast), transform var(--transition-smooth);
        }
        .highlight-card:hover {
            border-color: rgba(0, 212, 255, 0.25);
            transform: translateY(-3px);
        }
        .highlight-badge {
            position: absolute;
            top: 12px;
            right: 12px;
            background: var(--accent-red);
            color: #fff;
            font-size: 10px;
            padding: 2px 8px;
            border-radius: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }
        .highlight-icon {
            font-size: 28px;
            margin-bottom: 10px;
        }
        .highlight-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .highlight-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 安全评级与认证 */
        .security-ratings {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .ratings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
            margin-top: 10px;
        }
        .rating-card {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
            transition: border-color var(--transition-fast);
        }
        .rating-card:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }
        .rating-score {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent-cyan);
            margin-bottom: 4px;
        }
        .rating-title {
            font-size: 14px;
            font-weight: 500;
            color: #fff;
            margin-bottom: 6px;
        }
        .rating-desc {
            font-size: 12px;
            color: var(--text-tertiary);
        }

        /* 测试与审计 */
        .security-audit {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .audit-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 10px;
        }
        .audit-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            padding: 14px 18px;
            transition: border-color var(--transition-fast);
        }
        .audit-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }
        .audit-icon {
            font-size: 24px;
            flex-shrink: 0;
        }
        .audit-info {
            flex: 1;
        }
        .audit-title {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
        }
        .audit-desc {
            font-size: 12px;
            color: var(--text-tertiary);
        }
        .audit-result {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            white-space: nowrap;
        }

        /* 漏洞奖励计划 */
        .bug-bounty {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .bounty-box {
            background: var(--bg-elevated);
            border: 1px solid rgba(0, 212, 255, 0.2);
            border-radius: 16px;
            padding: 22px 24px;
            text-align: center;
            margin-top: 10px;
        }
        .bounty-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }
        .bounty-desc {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .bounty-btn {
            display: inline-block;
            background: var(--gradient-primary);
            color: #080c1a;
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 13px;
            text-decoration: none;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .bounty-btn:hover {
            transform: scale(1.05);
            box-shadow: var(--shadow-btn-glow);
        }

        /* 安全时间线 */
        .timeline-section {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .timeline {
            position: relative;
            margin-top: 20px;
            padding-left: 30px;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(0, 212, 255, 0.2);
        }
        .timeline-item {
            position: relative;
            margin-bottom: 24px;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 6px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-cyan);
            box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
        }
        .timeline-date {
            font-size: 12px;
            color: var(--text-tertiary);
            margin-bottom: 4px;
            font-family: var(--font-mono);
        }
        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }
        .timeline-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* 安全最佳实践 */
        .best-practices {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .practice-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 10px;
        }
        .practice-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            padding: 14px 18px;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            transition: border-color var(--transition-fast);
        }
        .practice-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }
        .practice-icon {
            font-size: 20px;
            flex-shrink: 0;
        }
        .practice-text {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .practice-text strong {
            color: #fff;
            font-weight: 500;
        }

        /* FAQ */
        .faq-section {
            padding: 30px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 8px;
        }
        .faq-item {
            background: var(--bg-elevated);
            border: 1px solid var(--border-subtle);
            border-radius: 12px;
            padding: 14px 18px;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: rgba(0, 212, 255, 0.2);
        }
        .faq-question {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-answer {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 底部 CTA */
        .bottom-cta {
            padding: 30px 0 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 20px;
        }
        .cta-inner {
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.06), rgba(123, 97, 255, 0.06));
            border: 1px solid rgba(0, 212, 255, 0.15);
            border-radius: 24px;
            padding: 36px 40px;
            text-align: center;
        }
        .cta-inner h2 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }
        .cta-inner p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        footer {
            padding: 40px 0 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 10px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-brand .logo-wrapper {
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: var(--text-tertiary);
            font-size: 13px;
            line-height: 1.8;
            max-width: 280px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.35);
            text-decoration: none;
            font-size: 13px;
            line-height: 2.4;
            transition: color var(--transition-fast);
            letter-spacing: 0.2px;
        }
        .footer-col a:hover {
            color: var(--accent-cyan);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom .copy {
            color: var(--text-muted);
            font-size: 12px;
            letter-spacing: 0.3px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            color: rgba(255, 255, 255, 0.25);
            text-decoration: none;
            font-size: 16px;
            transition: color var(--transition-fast), transform var(--transition-fast);
            display: inline-block;
        }
        .footer-social a:hover {
            color: var(--accent-cyan);
            transform: translateY(-2px);
        }

        /* 响应式 */
        @media (max-width: 992px) {
            .security-hero {
                grid-template-columns: 1fr;
                gap: 40px;
                text-align: center;
                min-height: auto;
            }
            .security-hero-content .description {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .security-hero-buttons {
                justify-content: center;
            }
            .hero-trust-badges {
                justify-content: center;
            }
            .security-hero-content h1 {
                font-size: 38px;
            }
            .security-shield-visual {
                max-width: 320px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .cta-inner {
                padding: 24px 20px;
            }
        }
        @media (max-width: 768px) {
            nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 75%;
                max-width: 320px;
                height: 100vh;
                background: rgba(8, 12, 26, 0.98);
                flex-direction: column;
                padding: 80px 24px 40px;
                gap: 12px;
                transition: right 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
                border-left: 1px solid rgba(0, 212, 255, 0.08);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                align-items: flex-start;
                overflow-y: auto;
                z-index: 90;
            }
            nav.open {
                right: 0;
            }
            .mobile-toggle {
                display: flex;
                z-index: 100;
            }
            .mobile-toggle.open span:nth-child(1) {
                transform: rotate(45deg) translate(6px, 6px);
            }
            .mobile-toggle.open span:nth-child(2) {
                opacity: 0;
            }
            .mobile-toggle.open span:nth-child(3) {
                transform: rotate(-45deg) translate(6px, -6px);
            }
            nav a {
                font-size: 16px;
                padding: 6px 0;
            }
            .nav-cta {
                margin-top: 8px;
            }
            .nav-dropdown {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
            }
            .nav-dropdown-btn {
                font-size: 16px;
                padding: 6px 0;
            }
            .nav-dropdown-content {
                position: static;
                transform: none;
                min-width: 100%;
                opacity: 1;
                visibility: visible;
                pointer-events: auto;
                background: none;
                border: none;
                padding: 0 0 0 16px;
                box-shadow: none;
                display: none;
            }
            .nav-dropdown.dropdown-open .nav-dropdown-content {
                display: block;
                transform: none;
            }
            .nav-dropdown-content a {
                padding: 8px 0;
                font-size: 14px;
            }
            .security-hero-content h1 {
                font-size: 32px;
            }
            .tech-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .highlight-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 22px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .section-title {
                font-size: 26px;
            }
            .ratings-grid {
                grid-template-columns: 1fr 1fr;
            }
            .timeline {
                padding-left: 24px;
            }
            .timeline-item::before {
                left: -20px;
            }
            .cta-inner h2 {
                font-size: 20px;
            }
        }
        @media (max-width: 480px) {
            .site-wrapper {
                padding: 0 14px;
            }
            .tech-grid {
                grid-template-columns: 1fr;
            }
            .security-hero-content h1 {
                font-size: 28px;
            }
            .security-hero-content .tagline {
                font-size: 16px;
            }
            .security-shield-visual {
                max-width: 100%;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 22px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .security-hero-buttons {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }
            .trust-badge {
                font-size: 11px;
            }
            .ratings-grid {
                grid-template-columns: 1fr;
            }
            .audit-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .practice-item {
                flex-direction: column;
                gap: 6px;
            }
            .logo-text {
                font-size: 20px;
            }
            .logo-text span {
                font-size: 9px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
            .btn-primary::before {
                display: none;
            }
            .badge-dot {
                animation: none;
            }
        }