:root {
        --bg-primary: #0a0612;
        --bg-secondary: #0f0a1a;
        --bg-card: rgba(255, 255, 255, 0.03);
        --bg-card-hover: rgba(255, 255, 255, 0.06);
        --border-subtle: rgba(255, 255, 255, 0.08);
        --border-hover: rgba(168, 85, 247, 0.35);
        --text-primary: #f1f5f9;
        --text-secondary: #94a3b8;
        --text-muted: #64748b;
        --accent-purple: #a855f7;
        --accent-blue: #3b82f6;
        --accent-cyan: #06b6d4;
        --accent-glow-purple: rgba(168, 85, 247, 0.15);
        --accent-glow-blue: rgba(59, 130, 246, 0.12);
        --accent-glow-cyan: rgba(6, 182, 212, 0.1);
        --gradient-hero: linear-gradient(120deg, #a855f7 0%, #7c3aed 30%, #3b82f6 65%, #06b6d4 100%);
        --gradient-quantum: linear-gradient(135deg, rgba(168, 85, 247, 0.4), rgba(6, 182, 212, 0.3));
        --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        --header-height: 72px;
        --nav-font-size: 12.5px;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        background-color: var(--bg-primary);
        color: var(--text-primary);
        line-height: 1.6;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    /* ── 背景量子粒子装饰 ── */
    .quantum-bg {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        pointer-events: none;
        z-index: 0;
        overflow: hidden;
    }
    .quantum-bg::before,
    .quantum-bg::after {
        content: '';
        position: absolute;
        border-radius: 50%;
        filter: blur(80px);
        opacity: 0.3;
        animation: quantumFloat 12s ease-in-out infinite alternate;
    }
    .quantum-bg::before {
        width: 500px;
        height: 500px;
        background: radial-gradient(circle, rgba(168, 85, 247, 0.25), transparent 70%);
        top: -100px;
        left: -100px;
        animation-delay: 0s;
    }
    .quantum-bg::after {
        width: 600px;
        height: 600px;
        background: radial-gradient(circle, rgba(6, 182, 212, 0.2), transparent 70%);
        bottom: -150px;
        right: -150px;
        animation-delay: -6s;
    }
    @keyframes quantumFloat {
        0% {
            transform: translate(0, 0) scale(1);
        }
        33% {
            transform: translate(40px, -30px) scale(1.15);
        }
        66% {
            transform: translate(-30px, 20px) scale(0.95);
        }
        100% {
            transform: translate(20px, -10px) scale(1.05);
        }
    }

    /* ── 头部导航 ── */
    header {
        position: fixed;
        top: 16px;
        left: 50%;
        transform: translateX(-50%);
        width: 94%;
        max-width: 1250px;
        background: rgba(10, 6, 18, 0.75);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 50px;
        padding: 10px 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        transition: all 0.3s ease;
    }
    header.scrolled {
        background: rgba(10, 6, 18, 0.92);
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 800;
        letter-spacing: -0.3px;
        flex-shrink: 0;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
        background: var(--gradient-hero);
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 900;
        color: #fff;
        box-shadow: 0 0 24px rgba(168, 85, 247, 0.5);
        animation: logoGlow 3s ease-in-out infinite alternate;
    }
    @keyframes logoGlow {
        0% {
            box-shadow: 0 0 16px rgba(168, 85, 247, 0.4);
        }
        100% {
            box-shadow: 0 0 32px rgba(6, 182, 212, 0.5);
        }
    }
    .logo span {
        background: linear-gradient(90deg, #fff 60%, #a855f7);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    nav {
        flex: 1;
        display: flex;
        justify-content: center;
    }
    nav ul {
        display: flex;
        list-style: none;
        gap: 4px;
        font-size: var(--nav-font-size);
        color: var(--text-secondary);
        flex-wrap: nowrap;
        align-items: center;
    }
    nav ul li {
        position: relative;
        white-space: nowrap;
    }
    nav ul li a {
        display: inline-block;
        padding: 6px 10px;
        border-radius: 20px;
        color: var(--text-secondary);
        font-weight: 500;
        transition: all 0.25s ease;
        position: relative;
    }
    nav ul li a:hover {
        color: #fff;
        background: rgba(168, 85, 247, 0.12);
    }
    nav ul li a.active {
        color: #fff;
        background: rgba(168, 85, 247, 0.18);
        box-shadow: 0 0 12px rgba(168, 85, 247, 0.2);
    }
    nav ul li a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2px;
        background: var(--gradient-hero);
        border-radius: 2px;
        transition: width 0.3s ease;
    }
    nav ul li a:hover::after,
    nav ul li a.active::after {
        width: 60%;
    }
    .lang-select {
        font-size: 13px;
        color: var(--text-secondary);
        cursor: pointer;
        padding: 6px 12px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 20px;
        transition: all 0.3s;
        flex-shrink: 0;
    }
    .lang-select:hover {
        border-color: rgba(168, 85, 247, 0.4);
        color: #fff;
    }

    /* ── 主容器 ── */
    main {
        position: relative;
        z-index: 1;
    }

    /* ── Hero区 ── */
    .hero-section {
        padding: 170px 20px 90px;
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 50px;
        min-height: 100vh;
    }
    .hero-text {
        flex: 1.1;
        max-width: 620px;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(168, 85, 247, 0.1);
        border: 1px solid rgba(168, 85, 247, 0.3);
        border-radius: 50px;
        padding: 8px 18px;
        font-size: 12px;
        font-weight: 600;
        color: #c084fc;
        margin-bottom: 24px;
        letter-spacing: 0.5px;
    }
    .hero-badge .pulse-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: #a855f7;
        animation: pulseDot 1.5s ease-in-out infinite;
    }
    @keyframes pulseDot {
        0%,
        100% {
            box-shadow: 0 0 0 0 rgba(168, 85, 247, 0.5);
        }
        50% {
            box-shadow: 0 0 0 8px rgba(168, 85, 247, 0);
        }
    }
    .hero-text h1 {
        font-size: 52px;
        font-weight: 900;
        line-height: 1.2;
        margin-bottom: 12px;
        letter-spacing: -1px;
    }
    .hero-text h1 .gradient-text {
        background: var(--gradient-hero);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        display: inline-block;
    }
    .hero-subtitle {
        font-size: 22px;
        font-weight: 700;
        color: #cbd5e1;
        margin-bottom: 20px;
    }
    .hero-subtitle .highlight {
        color: #06b6d4;
        font-weight: 800;
    }
    .hero-desc {
        color: var(--text-secondary);
        font-size: 15px;
        line-height: 1.85;
        margin-bottom: 36px;
        max-width: 540px;
    }
    .hero-desc strong {
        color: #c084fc;
        font-weight: 600;
    }
    .download-badges {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }
    .badge-item {
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 14px;
        padding: 10px 16px;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 4px;
        min-width: 76px;
        transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        cursor: pointer;
    }
    .badge-item:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(168, 85, 247, 0.4);
        transform: translateY(-3px);
        box-shadow: 0 8px 24px rgba(168, 85, 247, 0.2);
    }
    .badge-item svg {
        width: 20px;
        height: 20px;
        fill: #fff;
    }
    .badge-item span {
        font-size: 11px;
        color: var(--text-secondary);
        font-weight: 500;
    }
    .hero-mockup {
        flex: 0.9;
        display: flex;
        justify-content: center;
        align-items: center;
        position: relative;
    }
    .hero-mockup::before {
        content: '';
        position: absolute;
        width: 380px;
        height: 380px;
        border-radius: 50%;
        background: var(--gradient-quantum);
        filter: blur(90px);
        opacity: 0.35;
        animation: mockupGlow 6s ease-in-out infinite alternate;
    }
    @keyframes mockupGlow {
        0% {
            transform: scale(0.9);
            opacity: 0.25;
        }
        100% {
            transform: scale(1.1);
            opacity: 0.45;
        }
    }
    .hero-img-placeholder {
        width: 100%;
        max-width: 340px;
        height: auto;
        object-fit: contain;
        border-radius: 24px;
        position: relative;
        z-index: 1;
        border: 1px solid rgba(255, 255, 255, 0.06);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    }

    /* ── 量子威胁警示条 ── */
    .quantum-alert-banner {
        max-width: 1200px;
        margin: 0 auto 80px;
        padding: 0 20px;
    }
    .quantum-alert-inner {
        background: linear-gradient(135deg, rgba(168, 85, 247, 0.08), rgba(6, 182, 212, 0.05));
        border: 1px solid rgba(168, 85, 247, 0.2);
        border-radius: 18px;
        padding: 20px 28px;
        display: flex;
        align-items: center;
        gap: 16px;
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }
    .quantum-alert-inner:hover {
        border-color: rgba(168, 85, 247, 0.35);
    }
    .alert-icon {
        font-size: 28px;
        flex-shrink: 0;
        animation: alertShake 3s ease-in-out infinite;
    }
    @keyframes alertShake {
        0%,
        80%,
        100% {
            transform: rotate(0deg);
        }
        85% {
            transform: rotate(8deg);
        }
        90% {
            transform: rotate(-8deg);
        }
        95% {
            transform: rotate(4deg);
        }
    }
    .alert-text {
        flex: 1;
    }
    .alert-text h3 {
        font-size: 14px;
        font-weight: 700;
        margin-bottom: 4px;
        color: #e9d5ff;
    }
    .alert-text p {
        font-size: 12px;
        color: var(--text-secondary);
        line-height: 1.5;
    }
    .alert-action {
        font-size: 13px;
        color: #c084fc;
        font-weight: 600;
        white-space: nowrap;
        padding: 8px 16px;
        border: 1px solid rgba(168, 85, 247, 0.3);
        border-radius: 50px;
        transition: all 0.3s;
        flex-shrink: 0;
    }
    .alert-action:hover {
        background: rgba(168, 85, 247, 0.15);
        border-color: rgba(168, 85, 247, 0.5);
    }

    /* ── PQC技术特性板块 ── */
    .pqc-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-end;
        margin-bottom: 40px;
        flex-wrap: wrap;
        gap: 16px;
    }
    .section-tag {
        font-size: 12px;
        font-weight: 700;
        color: #06b6d4;
        letter-spacing: 2px;
        text-transform: uppercase;
        margin-bottom: 8px;
        display: block;
    }
    .section-title {
        font-size: 36px;
        font-weight: 800;
        line-height: 1.3;
        letter-spacing: -0.5px;
    }
    .section-title .accent {
        color: #a855f7;
    }
    .section-link {
        font-size: 13px;
        color: #a855f7;
        font-weight: 600;
        display: flex;
        align-items: center;
        gap: 6px;
        transition: all 0.3s;
    }
    .section-link:hover {
        color: #c084fc;
        gap: 10px;
    }
    .features-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }
    .feature-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: 20px;
        padding: 30px 26px;
        position: relative;
        overflow: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        cursor: default;
    }
    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: var(--gradient-hero);
        opacity: 0;
        transition: opacity 0.4s;
    }
    .feature-card:hover {
        background: var(--bg-card-hover);
        border-color: var(--border-hover);
        transform: translateY(-4px);
        box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
    }
    .feature-card:hover::before {
        opacity: 1;
    }
    .feature-icon-box {
        width: 52px;
        height: 52px;
        border-radius: 14px;
        background: rgba(168, 85, 247, 0.1);
        border: 1px solid rgba(168, 85, 247, 0.25);
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 18px;
        font-size: 22px;
        box-shadow: 0 0 18px rgba(168, 85, 247, 0.15);
        transition: all 0.4s;
    }
    .feature-card:hover .feature-icon-box {
        box-shadow: 0 0 28px rgba(168, 85, 247, 0.3);
        transform: scale(1.05);
    }
    .feature-card h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 10px;
        letter-spacing: -0.2px;
    }
    .feature-card p {
        font-size: 13.5px;
        color: var(--text-secondary);
        line-height: 1.7;
    }
    .feature-card .feature-tag {
        display: inline-block;
        font-size: 10px;
        font-weight: 700;
        color: #06b6d4;
        letter-spacing: 0.5px;
        margin-top: 12px;
        text-transform: uppercase;
    }

    /* ── AI安全引擎板块 ── */
    .ai-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .ai-showcase {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
        background: linear-gradient(135deg, rgba(6, 182, 212, 0.04), rgba(168, 85, 247, 0.04));
        border: 1px solid rgba(6, 182, 212, 0.15);
        border-radius: 24px;
        padding: 48px 40px;
    }
    .ai-visual {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .ai-radar {
        width: 220px;
        height: 220px;
        border-radius: 50%;
        border: 2px solid rgba(6, 182, 212, 0.3);
        position: relative;
        animation: radarSpin 8s linear infinite;
        box-shadow: 0 0 40px rgba(6, 182, 212, 0.15);
    }
    .ai-radar::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 2px;
        height: 50%;
        background: linear-gradient(to top, #06b6d4, transparent);
        transform-origin: bottom;
    }
    .ai-radar::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 60%;
        height: 60%;
        border-radius: 50%;
        border: 1px dashed rgba(6, 182, 212, 0.25);
        transform: translate(-50%, -50%);
    }
    @keyframes radarSpin {
        from {
            transform: rotate(0deg);
        }
        to {
            transform: rotate(360deg);
        }
    }
    .ai-content h3 {
        font-size: 28px;
        font-weight: 800;
        margin-bottom: 16px;
    }
    .ai-content h3 .highlight {
        color: #06b6d4;
    }
    .ai-content p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .ai-metrics {
        display: flex;
        gap: 30px;
    }
    .ai-metric {
        text-align: center;
    }
    .ai-metric .metric-value {
        font-size: 28px;
        font-weight: 900;
        color: #06b6d4;
    }
    .ai-metric .metric-label {
        font-size: 11px;
        color: var(--text-muted);
    }

    /* ── 加密演进时间线 ── */
    .timeline-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .timeline-track {
        display: flex;
        justify-content: space-between;
        position: relative;
        padding: 40px 0;
        gap: 8px;
    }
    .timeline-track::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, #334155, #a855f7, #06b6d4);
        transform: translateY(-50%);
        border-radius: 2px;
        opacity: 0.5;
    }
    .timeline-node {
        text-align: center;
        position: relative;
        z-index: 1;
        flex: 1;
        min-width: 0;
    }
    .timeline-dot {
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: var(--bg-primary);
        border: 3px solid #a855f7;
        margin: 0 auto 12px;
        box-shadow: 0 0 16px rgba(168, 85, 247, 0.4);
        transition: all 0.3s;
    }
    .timeline-node:hover .timeline-dot {
        border-color: #06b6d4;
        box-shadow: 0 0 24px rgba(6, 182, 212, 0.5);
        transform: scale(1.2);
    }
    .timeline-node h4 {
        font-size: 13px;
        font-weight: 700;
        margin-bottom: 4px;
    }
    .timeline-node p {
        font-size: 11px;
        color: var(--text-muted);
        line-height: 1.4;
    }
    .timeline-node.highlight .timeline-dot {
        border-color: #06b6d4;
        box-shadow: 0 0 32px rgba(6, 182, 212, 0.6);
        animation: timelinePulse 2s ease-in-out infinite;
    }
    @keyframes timelinePulse {
        0%,
        100% {
            box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
        }
        50% {
            box-shadow: 0 0 40px rgba(6, 182, 212, 0.7);
        }
    }
    .timeline-node.highlight h4 {
        color: #06b6d4;
        font-size: 15px;
    }

    /* ── 安全数据统计板块 ── */
    .stats-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 18px;
    }
    .stat-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: 18px;
        padding: 26px 22px;
        text-align: center;
        transition: all 0.35s;
        position: relative;
        overflow: hidden;
    }
    .stat-card::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2px;
        background: var(--gradient-hero);
        transition: width 0.4s;
    }
    .stat-card:hover {
        border-color: var(--border-hover);
        transform: translateY(-3px);
    }
    .stat-card:hover::after {
        width: 70%;
    }
    .stat-number {
        font-size: 32px;
        font-weight: 900;
        margin-bottom: 8px;
        background: var(--gradient-hero);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        letter-spacing: -1px;
    }
    .stat-label {
        font-size: 12px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 4px;
    }
    .stat-sub {
        font-size: 10.5px;
        color: var(--text-muted);
    }

    /* ── 企业级方案板块 ── */
    .enterprise-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .enterprise-showcase {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
        background: linear-gradient(135deg, rgba(168, 85, 247, 0.05), rgba(59, 130, 246, 0.05));
        border: 1px solid rgba(168, 85, 247, 0.15);
        border-radius: 24px;
        padding: 44px 38px;
    }
    .enterprise-text h3 {
        font-size: 26px;
        font-weight: 800;
        margin-bottom: 14px;
    }
    .enterprise-text h3 .accent {
        color: #a855f7;
    }
    .enterprise-text p {
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
        margin-bottom: 20px;
    }
    .enterprise-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .enterprise-list li {
        font-size: 13px;
        color: #cbd5e1;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .enterprise-list li::before {
        content: '✓';
        color: #06b6d4;
        font-weight: 700;
        font-size: 14px;
    }
    .enterprise-cta {
        display: inline-block;
        margin-top: 20px;
        padding: 12px 28px;
        background: var(--gradient-hero);
        border-radius: 50px;
        font-size: 14px;
        font-weight: 700;
        color: #fff;
        transition: all 0.3s;
        box-shadow: 0 8px 24px rgba(168, 85, 247, 0.3);
    }
    .enterprise-cta:hover {
        box-shadow: 0 12px 36px rgba(168, 85, 247, 0.5);
        transform: translateY(-2px);
    }

    /* ── 用户评价板块 ── */
    .testimonials-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .testimonials-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }
    .testimonial-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: 20px;
        padding: 26px;
        transition: all 0.35s;
        position: relative;
    }
    .testimonial-card::before {
        content: '"';
        position: absolute;
        top: 14px;
        right: 20px;
        font-size: 48px;
        color: rgba(168, 85, 247, 0.15);
        font-family: Georgia, serif;
        line-height: 1;
    }
    .testimonial-card:hover {
        border-color: var(--border-hover);
        transform: translateY(-3px);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
    }
    .user-info {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 14px;
    }
    .avatar-img {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: linear-gradient(135deg, #334155, #1e293b);
        border: 2px solid rgba(168, 85, 247, 0.3);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 15px;
        color: #c084fc;
    }
    .user-name {
        font-size: 14px;
        font-weight: 700;
    }
    .user-role {
        font-size: 11px;
        color: var(--text-muted);
    }
    .testimonial-card p {
        font-size: 13px;
        color: var(--text-secondary);
        line-height: 1.7;
        position: relative;
        z-index: 1;
    }

    /* ── 博客洞察板块 ── */
    .blog-section {
        max-width: 1200px;
        margin: 60px auto 100px;
        padding: 0 20px;
    }
    .blog-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 22px;
    }
    .blog-card {
        background: var(--bg-card);
        border: 1px solid var(--border-subtle);
        border-radius: 18px;
        overflow: hidden;
        transition: all 0.35s;
        cursor: pointer;
    }
    .blog-card:hover {
        border-color: var(--border-hover);
        transform: translateY(-4px);
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    }
    .blog-thumb {
        height: 130px;
        background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(6, 182, 212, 0.1));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 32px;
    }
    .blog-body {
        padding: 18px 20px 22px;
    }
    .blog-meta {
        font-size: 10px;
        color: #06b6d4;
        font-weight: 700;
        letter-spacing: 1px;
        text-transform: uppercase;
        margin-bottom: 8px;
    }
    .blog-body h4 {
        font-size: 15px;
        font-weight: 700;
        margin-bottom: 8px;
        line-height: 1.4;
    }
    .blog-body p {
        font-size: 12px;
        color: var(--text-secondary);
        line-height: 1.6;
    }
	/* ── 合规认证板块 ── */
.certifications-section {
    max-width: 1200px;
    margin: 60px auto 100px;
    padding: 0 20px;
}
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.cert-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 24px 22px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}
.cert-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-hero);
    opacity: 0;
    transition: opacity 0.3s;
}
.cert-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}
.cert-item:hover::before {
    opacity: 1;
}
.cert-icon {
    font-size: 26px;
    line-height: 1;
    margin-bottom: 4px;
}
.cert-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}
.cert-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 响应式 */
@media (max-width: 900px) {
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 560px) {
    .cert-grid {
        grid-template-columns: 1fr;
    }
}
/* ── CTA 下载区域板块 ── */
.download-cta-section {
    max-width: 1200px;
    margin: 80px auto 100px;
    padding: 0 20px;
}
.cta-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.06), rgba(6, 182, 212, 0.04));
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 28px;
    padding: 48px 44px;
    position: relative;
    overflow: hidden;
}
.cta-container::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15), transparent 70%);
    pointer-events: none;
    animation: ctaGlow 7s ease-in-out infinite alternate;
}
@keyframes ctaGlow {
    from { transform: translate(0, 0); opacity: 0.4; }
    to { transform: translate(-30px, 20px); opacity: 0.7; }
}
.cta-content {
    flex: 1.3;
    position: relative;
    z-index: 1;
}
.cta-content .section-tag {
    color: #06b6d4;
}
.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}
.cta-content h2 .accent {
    color: #a855f7;
}
.cta-content > p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 30px;
    max-width: 500px;
}
.cta-badges {
    margin-bottom: 28px;
}
.cta-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.cta-trust span {
    font-size: 12px;
    color: #cbd5e1;
    display: flex;
    align-items: center;
    gap: 6px;
}
.cta-trust i {
    font-style: normal;
    color: #34d399;
    font-weight: 700;
}
.cta-visual {
    flex: 0.7;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    text-align: center;
}
.cta-qr-placeholder {
    width: 140px;
    height: 140px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(168, 85, 247, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    box-shadow: 0 0 40px rgba(168, 85, 247, 0.2);
    margin-bottom: 16px;
    animation: qrPulse 3s ease-in-out infinite;
}
@keyframes qrPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(168, 85, 247, 0.2); }
    50% { box-shadow: 0 0 40px rgba(6, 182, 212, 0.4); }
}
.cta-visual-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}
.cta-visual-text small {
    font-size: 11px;
    color: var(--text-muted);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .cta-container {
        flex-direction: column;
        text-align: center;
        padding: 36px 24px;
    }
    .cta-content > p {
        margin-left: auto;
        margin-right: auto;
    }
    .cta-badges {
        justify-content: center;
    }
    .cta-trust {
        justify-content: center;
    }
    .cta-visual {
        margin-top: 20px;
    }
}
    /* ── 底部 ── */
    footer {
        border-top: 1px solid var(--border-subtle);
        padding: 60px 20px 30px;
        background-color: var(--bg-primary);
        position: relative;
        z-index: 1;
    }
    .footer-container {
        max-width: 1200px;
        margin: 0 auto;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
        margin-bottom: 50px;
    }
    .footer-col h4 {
        font-size: 14px;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 18px;
        letter-spacing: 0.3px;
    }
    .footer-col ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer-col ul li,
    .footer-col ul li a {
        font-size: 13px;
        color: var(--text-secondary);
        transition: color 0.25s;
    }
    .footer-col ul li a:hover {
        color: #c084fc;
    }
    .footer-bottom {
        text-align: center;
        font-size: 12px;
        color: var(--text-muted);
        padding-top: 24px;
        border-top: 1px solid var(--border-subtle);
    }
    .footer-bottom p {
        margin-bottom: 6px;
    }
    .footer-bottom .footer-links {
        display: flex;
        justify-content: center;
        gap: 20px;
        font-size: 11px;
    }
    .footer-bottom .footer-links a {
        color: var(--text-muted);
        transition: color 0.25s;
    }
    .footer-bottom .footer-links a:hover {
        color: #c084fc;
    }

    /* ── 响应式设计 ── */
    @media (max-width: 1100px) {
        header {
            width: 96%;
            padding: 10px 16px;
        }
        nav ul {
            gap: 2px;
            font-size: 11px;
        }
        nav ul li a {
            padding: 5px 7px;
        }
        .hero-text h1 {
            font-size: 40px;
        }
        .features-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .testimonials-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .blog-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 768px) {
        header {
            top: 8px;
            padding: 8px 14px;
            border-radius: 30px;
            width: 95%;
        }
        nav ul {
            flex-wrap: wrap;
            justify-content: center;
            gap: 2px;
            font-size: 10px;
        }
        nav ul li a {
            padding: 4px 5px;
        }
        .lang-select {
            display: none;
        }
        .hero-section {
            flex-direction: column;
            padding-top: 130px;
            gap: 30px;
            text-align: center;
            min-height: auto;
        }
        .hero-text {
            max-width: 100%;
        }
        .hero-text h1 {
            font-size: 32px;
        }
        .hero-desc {
            font-size: 13px;
            margin-left: auto;
            margin-right: auto;
        }
        .download-badges {
            justify-content: center;
        }
        .hero-mockup::before {
            width: 260px;
            height: 260px;
        }
        .quantum-alert-inner {
            flex-direction: column;
            text-align: center;
            gap: 12px;
        }
        .features-grid {
            grid-template-columns: 1fr;
        }
        .ai-showcase {
            grid-template-columns: 1fr;
            text-align: center;
            padding: 30px 20px;
        }
        .ai-metrics {
            justify-content: center;
        }
        .enterprise-showcase {
            grid-template-columns: 1fr;
            text-align: center;
            padding: 30px 20px;
        }
        .enterprise-list {
            align-items: flex-start;
            text-align: left;
            max-width: 300px;
            margin: 0 auto;
        }
        .timeline-track {
            flex-direction: column;
            gap: 20px;
        }
        .timeline-track::before {
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            height: 100%;
            transform: translateX(-50%);
        }
        .stats-grid {
            grid-template-columns: 1fr;
        }
        .testimonials-grid {
            grid-template-columns: 1fr;
        }
        .blog-grid {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .section-title {
            font-size: 26px;
        }
    }
    @media (max-width: 480px) {
        .footer-grid {
            grid-template-columns: 1fr;
        }
        .hero-text h1 {
            font-size: 26px;
        }
        .section-title {
            font-size: 22px;
        }
        .stat-number {
            font-size: 24px;
        }
    }