/* ===== SafeW 创意排版 CSS ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #0b0713;
            color: #ffffff;
            line-height: 1.6;
            overflow-x: hidden;
            background-image:
                radial-gradient(ellipse 60% 40% at 15% 0%, rgba(124, 58, 237, 0.22), transparent 60%),
                radial-gradient(ellipse 50% 35% at 85% 10%, rgba(59, 130, 246, 0.18), transparent 60%),
                radial-gradient(ellipse 40% 30% at 50% 100%, rgba(168, 85, 247, 0.08), transparent 70%);
            background-repeat: no-repeat;
            background-attachment: fixed;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 创意 header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 7, 19, 0.8);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.3s ease;
        }
        .site-header:hover {
            background: rgba(11, 7, 19, 0.95);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 32px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 24px;
            font-weight: 800;
            flex-shrink: 0;
            letter-spacing: -0.5px;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, #a855f7, #6366f1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 8px 24px rgba(168, 85, 247, 0.4);
            transition: transform 0.3s ease;
        }
        .logo:hover .logo-icon {
            transform: rotate(-5deg) scale(1.05);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 28px;
            font-size: 15px;
            color: #cbd5e1;
        }
        .main-nav a {
            position: relative;
            transition: color 0.2s;
            font-weight: 500;
            letter-spacing: 0.3px;
        }
        .main-nav a:hover {
            color: #ffffff;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -6px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #a855f7, #3b82f6);
            transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
            border-radius: 2px;
        }
        .main-nav a:hover::after {
            width: 100%;
        }
        .main-nav a.active-nav {
            color: #ffffff;
        }
        .main-nav a.active-nav::after {
            width: 100%;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .lang-select {
            font-size: 14px;
            color: #cbd5e1;
            cursor: pointer;
            white-space: nowrap;
            transition: color 0.2s;
        }
        .lang-select:hover {
            color: #ffffff;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            font-weight: 600;
            transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-small {
            padding: 10px 20px;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
            backdrop-filter: blur(8px);
        }
        .btn-small:hover {
            background: rgba(255, 255, 255, 0.18);
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
        }
        .btn-primary {
            padding: 14px 30px;
            font-size: 16px;
            background: linear-gradient(135deg, #a855f7, #3b82f6);
            border: none;
            color: #fff;
            box-shadow: 0 12px 28px rgba(124, 58, 237, 0.45);
            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, 0.2), transparent);
            transition: left 0.6s;
        }
        .btn-primary:hover::before {
            left: 100%;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 18px 38px rgba(124, 58, 237, 0.55);
        }
        .btn-secondary {
            padding: 14px 28px;
            font-size: 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            backdrop-filter: blur(8px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-2px);
            border-color: rgba(255, 255, 255, 0.35);
        }

        /* Hero 创意区 */
        .hero {
            padding: 110px 0 90px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            bottom: -120px;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(168, 85, 247, 0.15), transparent 70%);
            pointer-events: none;
        }
        .hero-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 999px;
            background: rgba(168, 85, 247, 0.12);
            border: 1px solid rgba(168, 85, 247, 0.35);
            font-size: 13px;
            color: #d8b4fe;
            margin-bottom: 28px;
            letter-spacing: 0.5px;
            backdrop-filter: blur(10px);
            animation: float 4s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }
        .hero-badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #10b981;
            box-shadow: 0 0 14px rgba(16, 185, 129, 0.9);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            50% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
        }
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.8rem);
            font-weight: 900;
            line-height: 1.16;
            letter-spacing: -1px;
            margin-bottom: 20px;
        }
        .hero h1 .gradient-text {
            background: linear-gradient(90deg, #c084fc, #60a5fa, #a855f7);
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: gradientShift 4s ease-in-out infinite;
        }
        @keyframes gradientShift {
            0%, 100% { background-position: 0% center; }
            50% { background-position: 100% center; }
        }
        .hero-desc {
            max-width: 720px;
            color: #a0aec0;
            font-size: 17px;
            line-height: 1.9;
            margin-bottom: 38px;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            margin-bottom: 50px;
        }
        .hero-mini-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-bottom: 70px;
        }
        .hero-mini-stat {
            text-align: center;
            transition: transform 0.3s;
        }
        .hero-mini-stat:hover {
            transform: translateY(-5px);
        }
        .hero-mini-stat strong {
            display: block;
            font-size: 28px;
            font-weight: 800;
            background: linear-gradient(135deg, #f0abfc, #93c5fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
        }
        .hero-mini-stat span {
            font-size: 13px;
            color: #94a3b8;
            display: block;
            margin-top: 4px;
        }
        .hero-visual {
            width: 100%;
            max-width: 900px;
            margin: 0 auto;
            border-radius: 28px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03) inset, 0 0 40px rgba(168, 85, 247, 0.1);
            overflow: hidden;
            backdrop-filter: blur(10px);
            animation: fadeUp 1s ease-out;
        }
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .app-window {
            display: flex;
            min-height: 380px;
            text-align: left;
        }
        .app-sidebar {
            width: 220px;
            background: rgba(255, 255, 255, 0.03);
            border-right: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 14px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .app-sidebar-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 10px;
            font-size: 14px;
            color: #cbd5e1;
            transition: all 0.2s;
            cursor: default;
        }
        .app-sidebar-item:hover {
            background: rgba(255, 255, 255, 0.05);
            color: #fff;
        }
        .app-sidebar-item.active {
            background: rgba(168, 85, 247, 0.18);
            color: #fff;
            box-shadow: inset 0 0 12px rgba(168,85,247,0.1);
        }
        .app-sidebar-item .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: #10b981;
            box-shadow: 0 0 8px rgba(16,185,129,0.5);
        }
        .app-sidebar-item .dot.orange { background: #f59e0b; }
        .app-sidebar-item .dot.blue { background: #3b82f6; }
        .app-sidebar-item .dot.purple { background: #a855f7; }
        .app-sidebar-item .dot.gray { background: #64748b; }
        .app-chat {
            flex: 1;
            padding: 20px 26px;
            background: rgba(0, 0, 0, 0.15);
        }
        .app-chat-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 20px;
        }
        .app-chat-title {
            font-weight: 700;
            font-size: 16px;
        }
        .app-chat-status {
            font-size: 12px;
            color: #10b981;
        }
        .chat-messages {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .chat-msg {
            max-width: 75%;
            padding: 12px 16px;
            border-radius: 16px;
            font-size: 14px;
            color: #e2e8f0;
            position: relative;
            box-shadow: 0 4px 12px rgba(0,0,0,0.2);
        }
        .chat-msg.incoming {
            background: rgba(255, 255, 255, 0.08);
            border-bottom-left-radius: 4px;
            border: 1px solid rgba(255,255,255,0.05);
        }
        .chat-msg.outgoing {
            align-self: flex-end;
            background: linear-gradient(135deg, #a855f7, #6366f1);
            border-bottom-right-radius: 4px;
        }
        .chat-msg.system-msg {
            align-self: center;
            background: rgba(255,255,255,0.03);
            border: 1px dashed rgba(255,255,255,0.15);
            color: #94a3b8;
            font-size: 12px;
            padding: 6px 14px;
            border-radius: 20px;
        }
        .chat-input-bar {
            margin-top: 24px;
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 14px;
            padding: 10px 14px;
        }
        .chat-input-bar span {
            font-size: 14px;
            color: #64748b;
        }

        /* 通用 section 标题 */
        .section-heading {
            max-width: 700px;
            margin: 0 auto 50px;
            text-align: center;
        }
        .section-heading h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .section-heading p {
            color: #94a3b8;
            font-size: 16px;
        }

        /* Features 创意栅格 */
        .features-section {
            padding: 90px 0;
            position: relative;
        }
        .features-bento {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            grid-auto-rows: auto;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.09);
            border-radius: 24px;
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            transition: transform 0.3s, border-color 0.3s, background 0.3s, box-shadow 0.3s;
            backdrop-filter: blur(8px);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.07);
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }
        .feature-card::before {
            content: "";
            position: absolute;
            top: -40%;
            right: -20%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(168, 85, 247, 0.3), transparent 70%);
            pointer-events: none;
            transition: opacity 0.3s;
        }
        .feature-card:hover::before {
            opacity: 0.8;
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(168, 85, 247, 0.12);
            border: 1px solid rgba(168, 85, 247, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            margin-bottom: 18px;
            box-shadow: 0 0 24px rgba(168, 85, 247, 0.2);
            position: relative;
            z-index: 1;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .feature-card:hover .feature-icon {
            transform: scale(1.1);
            box-shadow: 0 0 40px rgba(168, 85, 247, 0.4);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .feature-card p {
            font-size: 14px;
            color: #94a3b8;
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }
        .feature-card.large {
            grid-column: span 2;
            grid-row: span 2;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        .feature-card.large .feature-icon {
            width: 64px;
            height: 64px;
            font-size: 30px;
            border-radius: 18px;
        }
        .feature-card.large h3 {
            font-size: 26px;
        }
        .feature-card.large p {
            font-size: 15px;
            max-width: 90%;
        }
        .feature-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
            position: relative;
            z-index: 1;
        }
        .feature-tag {
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: #cbd5e1;
            transition: all 0.2s;
        }
        .feature-tag:hover {
            background: rgba(168,85,247,0.15);
            border-color: rgba(168,85,247,0.3);
        }
        .feature-card.wide {
            grid-column: span 3;
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 26px 32px;
        }
        .feature-card.wide .feature-icon {
            margin-bottom: 0;
            flex-shrink: 0;
        }
        .feature-card.wide .wide-content {
            flex: 1;
        }
        .feature-card.wide h3 {
            font-size: 22px;
            margin-bottom: 6px;
        }
        .feature-card.wide p {
            max-width: 80%;
        }

        /* 零收集创意区域 */
        .zero-collection-section {
            padding: 90px 0;
            background: linear-gradient(135deg, rgba(168,85,247,0.05), rgba(59,130,246,0.05));
            border-top: 1px solid rgba(255,255,255,0.06);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            position: relative;
            overflow: hidden;
        }
        .zero-collection-section::before {
            content: "🔒";
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 120px;
            opacity: 0.05;
            transform: rotate(15deg);
        }
        .zero-container {
            display: flex;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .zero-left {
            flex: 1;
        }
        .zero-badge {
            display: inline-block;
            background: rgba(168,85,247,0.15);
            border: 1px solid rgba(168,85,247,0.3);
            padding: 5px 16px;
            border-radius: 999px;
            font-size: 13px;
            color: #d8b4fe;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }
        .zero-left h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .zero-desc {
            color: #94a3b8;
            font-size: 16px;
            margin-bottom: 24px;
            max-width: 500px;
        }
        .report-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #c084fc;
            font-weight: 600;
            font-size: 15px;
            transition: color 0.2s;
        }
        .report-link:hover {
            color: #e9d5ff;
        }
        .zero-right {
            flex: 1.2;
        }
        .zero-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .zero-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 24px;
            transition: all 0.3s;
            backdrop-filter: blur(6px);
        }
        .zero-item:hover {
            transform: translateY(-4px);
            border-color: rgba(255,255,255,0.2);
            background: rgba(255,255,255,0.06);
            box-shadow: 0 12px 24px rgba(0,0,0,0.3);
        }
        .zero-icon {
            font-size: 28px;
            margin-bottom: 12px;
        }
        .zero-item strong {
            display: block;
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .zero-item span {
            font-size: 13px;
            color: #94a3b8;
        }

        /* 安全架构 */
        .architecture-section {
            padding: 90px 0;
        }
        .arch-layers {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .arch-layer {
            display: grid;
            grid-template-columns: 60px 1fr 1.5fr;
            gap: 24px;
            align-items: center;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 24px 28px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .arch-layer:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.18);
            transform: translateX(8px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.3);
        }
        .arch-layer-num {
            font-size: 32px;
            font-weight: 900;
            color: rgba(168, 85, 247, 0.5);
            transition: color 0.3s;
        }
        .arch-layer:hover .arch-layer-num {
            color: #a855f7;
        }
        .arch-layer-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .arch-layer-content p {
            font-size: 14px;
            color: #94a3b8;
        }
        .arch-layer-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .arch-layer-tags span {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            color: #cbd5e1;
        }

        /* 安全数据统计 */
        .security-section {
            padding: 90px 0;
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .security-container {
            display: flex;
            gap: 60px;
            align-items: center;
        }
        .security-left {
            flex: 1;
        }
        .security-left h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .security-left p {
            color: #94a3b8;
            font-size: 16px;
            margin-bottom: 24px;
        }
        .security-right {
            flex: 1.2;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 26px 24px;
            transition: transform 0.3s, border-color 0.3s;
            backdrop-filter: blur(5px);
        }
        .stat-card:hover {
            transform: translateY(-5px);
            border-color: rgba(255, 255, 255, 0.22);
            background: rgba(255,255,255,0.06);
            box-shadow: 0 12px 28px rgba(0,0,0,0.4);
        }
        .stat-number {
            font-size: 36px;
            font-weight: 900;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #fff, #cbd5e1);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
        }
        .stat-label {
            font-size: 13px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 6px;
        }
        .stat-sub {
            font-size: 12px;
            color: #64748b;
        }

        /* 应用场景 */
        .usecase-section {
            padding: 90px 0;
        }
        .usecase-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .usecase-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 20px;
            padding: 28px 22px;
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .usecase-card:hover {
            transform: translateY(-5px);
            background: rgba(255,255,255,0.06);
            border-color: rgba(255,255,255,0.2);
            box-shadow: 0 14px 28px rgba(0,0,0,0.4);
        }
        .usecase-icon {
            font-size: 32px;
        }
        .usecase-card h3 {
            font-size: 18px;
            font-weight: 700;
        }
        .usecase-card p {
            font-size: 13px;
            color: #94a3b8;
            line-height: 1.6;
            flex-grow: 1;
        }
        .usecase-tag {
            display: inline-block;
            font-size: 11px;
            color: #a0aec0;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 10px;
            margin-top: auto;
        }

        /* 下载区 */
        .download-section {
            padding: 100px 0;
            text-align: center;
            background: linear-gradient(180deg, transparent, rgba(168,85,247,0.03), transparent);
        }
        .download-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .download-section .sub {
            color: #94a3b8;
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 40px;
        }
        .platform-badges {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .platform-badge {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 16px 22px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            min-width: 92px;
            transition: all 0.3s;
            cursor: pointer;
            backdrop-filter: blur(5px);
        }
        .platform-badge:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-6px) scale(1.05);
            box-shadow: 0 16px 32px rgba(0,0,0,0.4);
        }
        .platform-badge svg {
            width: 26px;
            height: 26px;
            fill: #ffffff;
        }
        .platform-badge span {
            font-size: 13px;
            color: #cbd5e1;
        }

        /* 评价 */
        .testimonials-section {
            padding: 90px 0 100px;
        }
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .testimonial-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 22px;
            padding: 30px 28px;
            position: relative;
            transition: transform 0.3s, border-color 0.3s, background 0.3s;
            backdrop-filter: blur(5px);
        }
        .testimonial-card:hover {
            transform: translateY(-6px);
            border-color: rgba(255, 255, 255, 0.2);
            background: rgba(255,255,255,0.06);
        }
        .testimonial-quote {
            font-size: 48px;
            line-height: 1;
            color: #a855f7;
            opacity: 0.4;
            margin-bottom: 12px;
            font-family: Georgia, serif;
        }
        .testimonial-card p {
            font-size: 14px;
            color: #cbd5e1;
            line-height: 1.8;
            margin-bottom: 22px;
        }
        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonial-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, #334155, #1e293b);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .testimonial-name {
            font-size: 15px;
            font-weight: 700;
        }

        /* 最终 CTA */
        .final-cta {
            padding: 90px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(59, 130, 246, 0.15));
            border-radius: 40px;
            max-width: 1000px;
            margin: 0 auto 100px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 30px 60px rgba(0,0,0,0.4);
            position: relative;
            overflow: hidden;
        }
        .final-cta::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -30%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(168,85,247,0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .final-cta h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .final-cta p {
            color: #a0aec0;
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        .final-cta .btn {
            margin: 0 8px;
            position: relative;
            z-index: 1;
        }

        /* 页脚 */
        .site-footer {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            background: #08050d;
            padding: 60px 0 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: #94a3b8;
            font-size: 14px;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-col ul li, .footer-col ul li a {
            font-size: 14px;
            color: #94a3b8;
            transition: color 0.2s;
        }
        .footer-col ul li a:hover {
            color: #ffffff;
        }
        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: #64748b;
        }

        /* 响应式 */
        @media (max-width: 992px) {
            .main-nav {
                display: none;
            }
            .features-bento {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card.large {
                grid-column: span 2;
                grid-row: span 2;
            }
            .feature-card.wide {
                grid-column: span 2;
            }
            .security-container,
            .zero-container {
                flex-direction: column;
                gap: 40px;
            }
            .testimonials-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .usecase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .arch-layer {
                grid-template-columns: 50px 1fr;
            }
            .arch-layer-tags {
                grid-column: span 2;
                margin-top: 8px;
            }
        }
        @media (max-width: 640px) {
            .nav-container {
                height: auto;
                padding: 14px 0;
                flex-wrap: wrap;
                gap: 12px;
            }
            .nav-actions {
                margin-left: auto;
            }
            .hero {
                padding: 60px 0 60px;
            }
            .hero-mini-stats {
                gap: 20px;
            }
            .app-sidebar {
                display: none;
            }
            .features-bento {
                grid-template-columns: 1fr;
            }
            .feature-card.large,
            .feature-card.wide {
                grid-column: span 1;
                grid-row: auto;
            }
            .stats-grid,
            .testimonials-grid,
            .usecase-grid,
            .zero-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .feature-card.wide {
                flex-direction: column;
                align-items: flex-start;
            }
            .arch-layer {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .arch-layer-num {
                font-size: 26px;
            }
            .arch-layer-tags {
                grid-column: auto;
            }
            .zero-item {
                padding: 18px;
            }
        }