:root {
            --bg: #010204;
            --bg-card: rgba(8, 9, 15, 0.45);
            --primary: #ffffff;
            --accent: #6366f1;
            --accent-green: #10b981;
            --accent-purple: #a855f7;
            --accent-cyan: #06b6d4;
            --border: rgba(255, 255, 255, 0.035);
            --text-main: #f4f4f7;
            --text-sub: #8688a2;
        }

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

        html {
            scroll-behavior: smooth;
            background-color: var(--bg);
        }

        body {
            font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            color: var(--text-main);
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        /* 电影级微米噪点 */
        body::before {
            content: "";
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3e%3cfilter id='noise'%3e%3cfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3e%3c/filter%3e%3crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.012'/%3e%3c/svg%3e");
            pointer-events: none;
            z-index: 9999;
        }

        /* 极客感虚线网格 */
        .bg-grid {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -2;
            background-image: 
                radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.015) 1px, transparent 0);
            background-size: 40px 40px;
            pointer-events: none;
        }

        /* 多层漫反射液态极光晕 */
        .ambient-aurora {
            position: fixed;
            width: 100vw;
            height: 100vh;
            top: 0;
            left: 0;
            z-index: -1;
            overflow: hidden;
            pointer-events: none;
        }

        .aurora-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(180px);
            opacity: 0.1;
            mix-blend-mode: screen;
            animation: drift 24s infinite alternate ease-in-out;
        }

        .orb-1 { width: 800px; height: 800px; background: var(--accent); top: -300px; left: -10%; }
        .orb-2 { width: 700px; height: 700px; background: var(--accent-purple); bottom: -200px; right: -10%; animation-delay: -5s; }
        .orb-3 { width: 600px; height: 600px; background: var(--accent-cyan); top: 20%; left: 40%; opacity: 0.05; animation-delay: -10s; }

        @keyframes drift {
            0% { transform: translate(0, 0) scale(1); }
            100% { transform: translate(80px, 50px) scale(1.15); }
        }

        /* 顶部通栏最新通告 Banner */
        .top-alert-banner {
            background: linear-gradient(90deg, #090a10, #131526, #090a10);
            border-bottom: 1px solid rgba(99, 102, 241, 0.15);
            padding: 10px 24px;
            text-align: center;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.5px;
            color: #c7d2fe;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            position: relative;
            z-index: 101;
        }

        .top-alert-banner-btn {
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 9px;
            color: #fff;
            text-transform: uppercase;
            font-family: 'Space Grotesk', sans-serif;
            margin-left: 8px;
        }

        /* 顶奢毛玻璃导航栏 */
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(1, 2, 4, 0.4);
            backdrop-filter: blur(24px) saturate(190%);
            -webkit-backdrop-filter: blur(24px) saturate(190%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.02);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            text-decoration: none;
            letter-spacing: -0.5px;
        }

        .logo-icon {
            width: 30px;
            height: 30px;
            border-radius: 10px;
            display: block;
            box-shadow: 0 10px 28px rgba(99,102,241,0.35);
        }

        .nav-links {
            display: flex;
            gap: 32px;
        }

        .nav-links a {
            font-size: 13px;
            color: var(--text-sub);
            font-weight: 500;
            transition: color 0.3s;
            text-decoration: none;
        }

        .nav-links a:hover {
            color: #fff;
        }

        .nav-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .btn {
            padding: 10px 22px;
            font-size: 13px;
            font-weight: 600;
            border-radius: 90px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }

        .btn-link {
            color: var(--text-sub);
        }

        .btn-link:hover {
            color: #fff;
        }

        .btn-solid {
            background: #fff;
            color: #000;
            box-shadow: 
                0 0 0 1px rgba(255,255,255,1),
                0 10px 30px rgba(255, 255, 255, 0.15);
        }

        .btn-solid:hover {
            background: #e4e4e7;
            transform: translateY(-1.5px) scale(1.02);
            box-shadow: 
                0 0 0 1px rgba(255,255,255,1),
                0 15px 35px rgba(255, 255, 255, 0.25);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid var(--border);
            color: #fff;
            backdrop-filter: blur(10px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(255,255,255,0.15);
        }

        /* 巨幕 Hero Section */
        .hero-banner {
            max-width: 1400px;
            margin: 0 auto;
            padding: 80px 24px 60px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(99, 102, 241, 0.05);
            border: 1px solid rgba(99, 102, 241, 0.15);
            border-radius: 90px;
            font-size: 11px;
            font-weight: 600;
            color: #a5b4fc;
            margin-bottom: 24px;
        }

        .hero-badge-dot {
            width: 6px;
            height: 6px;
            background: var(--accent-green);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--accent-green);
            animation: pulse-green 2s infinite;
        }

        @keyframes pulse-green {
            0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
            70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
            100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
        }

        .hero-banner h1 {
            font-size: clamp(38px, 7vw, 76px);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -2px;
            margin-bottom: 24px;
            background: linear-gradient(180deg, #ffffff 40%, #c7d2fe 85%, #818cf8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            max-width: 980px;
        }

        .hero-banner p {
            font-size: clamp(14px, 4.5vw, 18px);
            color: var(--text-sub);
            margin-bottom: 40px;
            max-width: 640px;
            line-height: 1.7;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            margin-bottom: 60px;
            flex-wrap: wrap;
            justify-content: center;
            width: 100%;
        }

        /* 💎 Panoramic Control Center (控制中心控制台) */
        .panoramic-showcase {
            width: 100%;
            max-width: 1200px;
            background: rgba(8, 9, 15, 0.35);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 24px;
            box-shadow: 
                0 0 1px rgba(255,255,255,0.2) inset,
                0 40px 120px -20px rgba(0, 0, 0, 0.9);
            overflow: hidden;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            backdrop-filter: blur(24px);
            position: relative;
            text-align: left;
        }

        .showcase-chat {
            border-right: 1px solid rgba(255, 255, 255, 0.03);
            display: flex;
            flex-direction: column;
            height: 480px;
        }

        .chat-header {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .window-dots {
            display: flex;
            gap: 6px;
        }

        .window-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .window-dot.close { background: #ff5f56; }
        .window-dot.mini { background: #ffbd2e; }
        .window-dot.max { background: #27c93f; }

        .chat-area {
            flex: 1;
            padding: 24px;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .showcase-analytics {
            background: rgba(255, 255, 255, 0.01);
            padding: 24px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            gap: 24px;
        }

        .analytics-title {
            font-family: 'Space Grotesk', sans-serif;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            color: #818cf8;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .analytics-pulse-dot {
            width: 6px;
            height: 6px;
            background: #818cf8;
            border-radius: 50%;
            box-shadow: 0 0 10px #818cf8;
            animation: pulse-indigo 1.5s infinite alternate;
        }

        @keyframes pulse-indigo {
            from { opacity: 0.3; } to { opacity: 1; }
        }

        .analytics-stat-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 14px;
            padding: 16px;
            margin-bottom: 12px;
        }

        .stat-label {
            font-size: 11px;
            color: var(--text-sub);
            margin-bottom: 4px;
        }

        .stat-value {
            font-size: 28px;
            font-family: 'Space Grotesk', sans-serif;
            font-weight: 700;
            color: #fff;
        }

        .mock-chart {
            display: flex;
            align-items: flex-end;
            gap: 4px;
            height: 80px;
            padding-top: 10px;
            border-bottom: 1px dashed rgba(255,255,255,0.08);
        }

        .chart-bar {
            flex: 1;
            background: linear-gradient(to top, var(--accent) 0%, var(--accent-purple) 100%);
            border-top-left-radius: 2px;
            border-top-right-radius: 2px;
            height: 10%;
            transition: height 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }

        /* 真实会话样式 */
        .message {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            max-width: 90%;
            animation: springIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
        }

        @keyframes springIn {
            from { opacity: 0; transform: translateY(12px) scale(0.96); }
            to { opacity: 1; transform: translateY(0) scale(1); }
        }

        .message.recv { align-self: flex-start; }
        .message.sent { align-self: flex-end; flex-direction: row-reverse; }

        .msg-avatar {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            object-fit: cover;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .msg-bubble {
            padding: 10px 14px;
            border-radius: 14px;
            font-size: 13px;
            line-height: 1.5;
        }

        .recv .msg-bubble {
            background: rgba(255, 255, 255, 0.035);
            border: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-main);
            border-top-left-radius: 4px;
        }

        .sent .msg-bubble {
            background: linear-gradient(135deg, #059669 0%, #10b981 100%);
            color: #fff;
            border-top-right-radius: 4px;
            box-shadow: 0 10px 25px rgba(16, 185, 129, 0.15), inset 0 1px 0 rgba(255,255,255,0.2);
            font-weight: 500;
        }

        .system-pill {
            align-self: center;
            background: rgba(99, 102, 241, 0.04);
            border: 1px solid rgba(99, 102, 241, 0.15);
            color: #c7d2fe;
            font-size: 10px;
            padding: 4px 12px;
            border-radius: 90px;
            font-family: 'JetBrains Mono', monospace;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            max-width: 95%;
            word-break: break-all;
        }

        .system-pill-dot {
            width: 4px;
            height: 4px;
            background: var(--accent);
            border-radius: 50%;
            box-shadow: 0 0 6px var(--accent);
            flex-shrink: 0;
        }

        .typing-indicator {
            display: flex;
            gap: 4px;
            padding: 8px 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border);
            border-radius: 12px;
            align-self: flex-end;
            margin-right: 42px;
        }

        .typing-dot {
            width: 4px;
            height: 4px;
            background: #fff;
            border-radius: 50%;
            animation: typing 1s infinite alternate;
        }

        .typing-dot:nth-child(2) { animation-delay: 0.2s; }
        .typing-dot:nth-child(3) { animation-delay: 0.4s; }

        @keyframes typing {
            0% { transform: translateY(0px); opacity: 0.3; }
            100% { transform: translateY(-3px); opacity: 1; }
        }

        /* 💎 全宽：双引擎架构可视化流向 Banner */
        .flow-banner {
            width: 100%;
            background: radial-gradient(circle at 50% 50%, #060814, #010204);
            border-top: 1px solid rgba(99, 102, 241, 0.08);
            border-bottom: 1px solid rgba(99, 102, 241, 0.08);
            padding: 80px 24px;
            overflow: hidden;
            margin-top: 60px;
        }

        .flow-banner-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: center;
        }

        .flow-intro h2 {
            font-size: clamp(26px, 5vw, 38px);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -1.2px;
            margin-bottom: 20px;
            background: linear-gradient(180deg, #fff 50%, #8f90a6 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .flow-intro p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
        }

        .flow-diagram {
            display: flex;
            flex-direction: column;
            gap: 16px;
            position: relative;
        }

        .flow-node {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 14px;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            position: relative;
            z-index: 2;
            backdrop-filter: blur(10px);
        }

        .flow-node-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }

        .flow-node-icon.core1 {
            background: rgba(16, 185, 129, 0.1);
            color: var(--accent-green);
            border: 1px solid rgba(16, 185, 129, 0.2);
        }

        .flow-node-icon.core2 {
            background: rgba(99, 102, 241, 0.1);
            color: var(--accent);
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .flow-node h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .flow-node p {
            font-size: 12px;
            color: var(--text-sub);
        }

        .flow-line {
            position: absolute;
            left: 40px;
            top: 40px;
            width: 2px;
            height: calc(100% - 80px);
            background: linear-gradient(to bottom, var(--accent-green) 30%, var(--accent) 70%);
            z-index: 1;
        }

        .flow-energy-dot {
            position: absolute;
            width: 6px;
            height: 6px;
            background: #fff;
            border-radius: 50%;
            left: -2px;
            box-shadow: 0 0 10px #fff;
            animation: flowMove 3s infinite linear;
        }

        @keyframes flowMove {
            0% { top: 0%; opacity: 0; }
            10% { opacity: 1; }
            90% { opacity: 1; }
            100% { top: 100%; opacity: 0; }
        }

        /* Bento 网格与磁吸卡片 */
        .section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 80px 24px;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-header h2 {
            font-size: clamp(26px, 5vw, 38px);
            font-weight: 800;
            letter-spacing: -1.2px;
            margin-bottom: 12px;
            background: linear-gradient(180deg, #ffffff 50%, #a1a1aa 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .section-header p {
            color: var(--text-sub);
            font-size: 14px;
        }

        .bento-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .glowing-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 30px;
            position: relative;
            overflow: hidden;
            transition: border-color 0.4s, background-color 0.4s, transform 0.4s;
            backdrop-filter: blur(12px);
            box-shadow: inset 0 1px 0 rgba(255,255,255,0.03);
        }

        /* 移动端非触摸设备支持 Hover 光晕，触摸设备屏蔽 Hover 避免卡顿 */
        @media (hover: hover) {
            .glowing-card::before {
                content: "";
                position: absolute;
                inset: 0;
                background: radial-gradient(
                    250px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
                    rgba(99, 102, 241, 0.06),
                    transparent 100%
                );
                opacity: 0;
                transition: opacity 0.5s;
                pointer-events: none;
                z-index: 1;
            }
            .glowing-card:hover::before { opacity: 1; }
            .glowing-card:hover {
                border-color: rgba(255, 255, 255, 0.12);
                transform: translateY(-2px);
                background: rgba(14, 15, 26, 0.65);
            }
        }

        .glowing-card::after {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 20px;
            padding: 1px;
            background: linear-gradient(to bottom, rgba(255,255,255,0.06), transparent);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }

        .glowing-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            position: relative;
            z-index: 2;
        }

        .glowing-card p {
            font-size: 13.5px;
            color: var(--text-sub);
            line-height: 1.6;
            position: relative;
            z-index: 2;
            margin-bottom: 16px;
        }

        /* Bento 内部功能特性的极简列表 */
        .card-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            position: relative;
            z-index: 2;
        }

        .card-list-item {
            font-size: 12.5px;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .card-list-item::before {
            content: "✦";
            color: var(--accent-green);
            font-size: 9px;
        }

        .card-icon {
            font-size: 28px;
            margin-bottom: 12px;
            display: block;
            position: relative;
            z-index: 2;
        }

        /* 客户反馈网格 */
        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .client-profile {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .client-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid rgba(255,255,255,0.08);
            box-shadow: 0 4px 10px rgba(0,0,0,0.3);
        }

        .client-info h4 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
        }

        .client-info span {
            font-size: 11px;
            color: var(--text-sub);
        }

        .client-quote {
            font-size: 13.5px;
            line-height: 1.65;
            color: #e4e4e7;
            flex-grow: 1;
            position: relative;
            z-index: 2;
        }

        .client-metric {
            margin-top: 24px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.015);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: relative;
            z-index: 2;
            overflow: hidden;
        }

        .client-metric::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 3px;
            height: 100%;
            background: linear-gradient(to bottom, var(--accent), var(--accent-purple));
        }

        .metric-num {
            font-size: 22px;
            font-family: 'Space Grotesk', sans-serif;
            font-weight: 700;
            background: linear-gradient(135deg, #fff 0%, #cbd5e1 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .metric-desc {
            font-size: 10px;
            color: var(--text-sub);
            font-weight: 600;
            letter-spacing: 0.8px;
            text-transform: uppercase;
        }

        /* SEO FAQ 问答区 */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 20px;
        }

        .faq-card h3 {
            font-size: 17px;
            line-height: 1.45;
            color: #fff;
        }

        .faq-card p {
            margin-bottom: 0;
            font-size: 13.5px;
        }

        /* 流光连贯步骤导轨 */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }

        .steps-container::before {
            content: "";
            position: absolute;
            top: 36px;
            left: 10%;
            width: 80%;
            height: 1px;
            background: linear-gradient(90deg, 
                rgba(99, 102, 241, 0) 0%, 
                rgba(99, 102, 241, 0.2) 30%, 
                rgba(16, 185, 129, 0.2) 70%, 
                rgba(16, 185, 129, 0) 100%
            );
            z-index: 0;
        }

        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 24px 16px;
            text-align: center;
            position: relative;
            z-index: 1;
            transition: all 0.3s;
        }

        .step-card:hover {
            border-color: rgba(255,255,255,0.08);
            transform: translateY(-2px);
        }

        .step-badge {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #fff;
            color: #000;
            font-size: 11px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            box-shadow: 0 4px 15px rgba(255,255,255,0.2);
            position: relative;
            z-index: 2;
        }

        .step-card h4 {
            font-size: 13.5px;
            margin-bottom: 6px;
            font-weight: 700;
        }

        .step-card p {
            font-size: 11.5px;
            color: var(--text-sub);
            line-height: 1.5;
        }

        /* 1对1 部署支持卡片 */
        .contact-card {
            background: linear-gradient(180deg, rgba(12,13,24,0.4) 0%, rgba(5,6,11,0.65) 100%);
            border: 1px solid var(--border);
            border-radius: 28px;
            padding: 48px;
            max-width: 960px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 32px;
            align-items: center;
            position: relative;
            backdrop-filter: blur(20px);
        }

        .contact-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 15%;
            width: 70%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(99,102,241,0.25), transparent);
        }

        .contact-info h3 {
            font-size: clamp(22px, 4vw, 30px);
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .contact-info p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .qr-box {
            text-align: center;
            background: rgba(255, 255, 255, 0.015);
            border: 1px solid var(--border);
            padding: 20px;
            border-radius: 20px;
            justify-self: center;
            box-shadow: 0 20px 50px rgba(0,0,0,0.5);
            width: 100%;
            max-width: 200px;
        }

        .qr-box img {
            width: 100%;
            height: auto;
            aspect-ratio: 1/1;
            border-radius: 10px;
            margin-bottom: 12px;
            border: 1px solid rgba(255,255,255,0.05);
        }

        .qr-box span {
            font-size: 11px;
            color: var(--text-sub);
            display: block;
            line-height: 1.4;
        }

        .contact-btn-container {
            display: flex;
            justify-content: center;
            margin-top: 32px;
            width: 100%;
        }

        .footer {
            border-top: 1px solid var(--border);
            padding: 30px 24px;
            text-align: center;
            color: var(--text-sub);
            font-size: 11.5px;
        }

        /* 📱 极智响应式适配体系 (手机与平板端) */
        @media (max-width: 1024px) {
            .panoramic-showcase { grid-template-columns: 1fr; }
            .showcase-chat { height: 400px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.03); }
            .flow-banner-container { grid-template-columns: 1fr; gap: 32px; }
            .bento-grid { grid-template-columns: 1fr; }
            .faq-grid { grid-template-columns: 1fr; }
            .testimonials-grid { grid-template-columns: 1fr; }
            .steps-container { grid-template-columns: 1fr; }
            .steps-container::before { display: none; }
            .contact-card { grid-template-columns: 1fr; text-align: center; padding: 32px 20px; }
            .qr-box { max-width: 180px; }
        }

        @media (max-width: 768px) {
            .top-alert-banner {
                padding: 8px 16px;
                font-size: 10px;
            }
            .top-alert-banner-btn {
                display: none; /* 手机端精简头部 */
            }
            .nav-links {
                display: none; /* 移动端隐藏横向文本菜单 */
            }
            .nav-actions {
                width: 100%;
                justify-content: flex-end;
            }
            .nav-actions .btn-link {
                font-size: 12px;
            }
            .nav-actions .btn-solid {
                padding: 8px 16px;
                font-size: 12px;
            }
            .hero-banner {
                padding: 48px 16px 40px;
            }
            .hero-btns {
                flex-direction: column;
                gap: 12px;
                align-items: stretch;
            }
            .hero-btns .btn {
                width: 100%;
            }
            .flow-banner {
                padding: 48px 16px;
            }
            .flow-line {
                left: 35px;
            }
            .flow-node {
                padding: 16px;
            }
            .flow-node-icon {
                width: 32px;
                height: 32px;
                font-size: 13px;
            }
            .section {
                padding: 48px 16px;
            }
            .glowing-card {
                padding: 24px;
            }
        }