/* ----- 全局重置 & 字体 ----- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background-color: #fafaf8;
            color: #1a1a1a;
            line-height: 1.5;
            -webkit-font-smoothing: antialiased;
        }
        a{text-decoration:none;color:inherit;}

        @import url('https://fonts.googleapis.com/css2?family=Inter:opsz,wght@14..32,300;14..32,400;14..32,500;14..32,600;14..32,700&display=swap');

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ----- 按钮系统 ----- */
        .btn-primary {
            display: inline-block;
            background: #0a0a0a;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 14px 40px;
            border-radius: 60px;
            text-decoration: none;
            letter-spacing: 0.3px;
            transition: all 0.25s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 8px 24px rgba(0,0,0,0.06);
        }

        .btn-primary:hover {
            background: #1f1f1f;
            transform: translateY(-2px);
            box-shadow: 0 14px 32px rgba(0,0,0,0.10);
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: #1a1a1a;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 12px 34px;
            border-radius: 60px;
            text-decoration: none;
            border: 1px solid #1a1a1a;
            transition: all 0.25s ease;
            letter-spacing: 0.3px;
        }

        .btn-outline:hover {
            background: #1a1a1a;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0,0,0,0.06);
        }

        .badge-tag {
            display: inline-block;
            background: rgba(0,0,0,0.02);
            border: 1px solid #e2e2e2;
            border-radius: 100px;
            padding: 4px 18px 4px 14px;
            font-size: 0.75rem;
            font-weight: 500;
            letter-spacing: 0.4px;
            color: #555;
        }

        .badge-tag i {
            font-style: normal;
            background: #0a0a0a;
            color: #fff;
            border-radius: 20px;
            padding: 2px 10px;
            margin-right: 6px;
            font-size: 0.65rem;
        }

        /* ----- 导航 ----- */
        .navbar {
            padding: 28px 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            border-bottom: 1px solid rgba(0,0,0,0.04);
        }

        .logo {
            font-size: 1.9rem;
            font-weight: 700;
            letter-spacing: -0.03em;
            background: linear-gradient(145deg, #0a0a0a 20%, #444 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .logo span {
            font-weight: 300;
            background: none;
            -webkit-text-fill-color: #777;
            color: #777;
        }

        .nav-links {
            display: flex;
            gap: 40px;
            align-items: center;
            font-weight: 500;
            color: #2a2a2a;
        }

        .nav-links a {
            text-decoration: none;
            color: inherit;
            font-size: 0.95rem;
            transition: color 0.2s;
            letter-spacing: 0.2px;
        }

        .nav-links a:hover {
            color: #000;
        }

        .nav-cta {
            background: #0a0a0a;
            color: #fff !important;
            padding: 10px 28px;
            border-radius: 60px;
            font-weight: 600;
            transition: all 0.2s;
            box-shadow: 0 4px 14px rgba(0,0,0,0.02);
        }

        .nav-cta:hover {
            background: #222;
            transform: scale(1.02);
        }

        /* ----- Hero ----- */
        .hero {
            padding: 50px 0 70px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 40px;
        }

        .hero-content {
            flex: 1 1 460px;
        }

        .hero-badge {
            margin-bottom: 28px;
        }

        .hero h1 {
            font-size: 4.4rem;
            font-weight: 700;
            line-height: 1.05;
            letter-spacing: -0.03em;
            margin-bottom: 20px;
            max-width: 700px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, #0a0a0a 0%, #5e5e5e 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero h1 .ai-badge {
            display: inline-block;
            background: #0a0a0a;
            color: #fff;
            font-size: 1.2rem;
            padding: 0 18px;
            border-radius: 60px;
            -webkit-text-fill-color: #fff;
            background-clip: unset;
            margin-left: 6px;
            letter-spacing: 0.5px;
            vertical-align: middle;
        }

        .hero p {
            font-size: 1.2rem;
            color: #3d3d3d;
            max-width: 520px;
            margin-bottom: 36px;
            font-weight: 400;
            line-height: 1.6;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 20px;
            align-items: center;
        }

        .hero-stats {
            display: flex;
            gap: 44px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .stat-item {
            display: flex;
            flex-direction: column;
        }

        .stat-number {
            font-size: 2.2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .stat-label {
            font-size: 0.85rem;
            color: #6b6b6b;
            font-weight: 400;
            letter-spacing: 0.2px;
        }

        .hero-visual {
            flex: 1 1 380px;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .geo-sphere {
            width: 100%;
            max-width: 460px;
            aspect-ratio: 1/1;
            background: radial-gradient(circle at 30% 30%, #f0f0f0, #d4d4d4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 30px 60px rgba(0,0,0,0.04);
            position: relative;
        }

        .geo-sphere-inner {
            width: 80%;
            height: 80%;
            border-radius: 50%;
            background: radial-gradient(circle at 40% 30%, #ffffff, #e8e8e8);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            box-shadow: inset 0 4px 24px rgba(255,255,255,0.5);
        }

        .geo-sphere-inner span {
            font-size: 4.5rem;
            font-weight: 700;
            background: linear-gradient(145deg, #0a0a0a, #4a4a4a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 2px;
        }

        .geo-sphere-inner small {
            font-size: 1rem;
            color: #4a4a4a;
            letter-spacing: 2px;
            margin-top: 6px;
            font-weight: 500;
        }

        .orbit-ring {
            position: absolute;
            border: 1px solid rgba(0,0,0,0.04);
            border-radius: 50%;
            width: 115%;
            height: 115%;
            animation: rotate 26s linear infinite;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* ----- 通用标题 ----- */
        .section-title {
            text-align: center;
            margin: 70px 0 20px;
        }

        .section-title h2 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .section-title p {
            color: #5c5c5c;
            font-size: 1.2rem;
            max-width: 560px;
            margin: 12px auto 0;
        }

        /* ----- 服务卡片 ----- */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
            gap: 36px 28px;
            margin: 40px 0 20px;
        }

        .card {
            background: #ffffff;
            padding: 40px 30px 34px;
            border-radius: 32px;
            box-shadow: 0 12px 36px rgba(0,0,0,0.02), 0 4px 12px rgba(0,0,0,0.01);
            transition: all 0.3s ease;
            border: 1px solid #f0f0f0;
        }

        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 32px 64px rgba(0,0,0,0.04);
            border-color: #d8d8d8;
        }

        .card-icon {
            font-size: 2.8rem;
            line-height: 1;
            margin-bottom: 14px;
        }

        .card h3 {
            font-size: 1.5rem;
            font-weight: 600;
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .card p {
            color: #4f4f4f;
            font-weight: 400;
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .card-link {
            display: inline-block;
            margin-top: 18px;
            font-weight: 600;
            color: #0a0a0a;
            text-decoration: none;
            border-bottom: 2px solid #0a0a0a;
            padding-bottom: 2px;
            transition: 0.2s;
        }

        .card-link:hover {
            opacity: 0.6;
        }

        /* ----- 信任数据条 ----- */
        .trust-band {
            background: #0a0a0a;
            color: #f5f5f5;
            border-radius: 40px;
            padding: 44px 40px;
            margin: 70px 0 50px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-around;
            align-items: center;
            gap: 30px;
        }

        .trust-item {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .trust-item .num {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            background: linear-gradient(to right, #ffffff, #b8b8b8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .trust-item .desc {
            font-weight: 400;
            font-size: 0.95rem;
            opacity: 0.8;
            max-width: 120px;
        }

        /* ----- AI 变革区块 (新增) ----- */
        .ai-revolution {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 40px;
            background: #f5f5f2;
            border-radius: 44px;
            padding: 44px 48px;
            margin: 40px 0 60px;
        }

        .ai-revolution .text {
            flex: 2 1 300px;
        }

        .ai-revolution .text h3 {
            font-size: 2.2rem;
            font-weight: 600;
            letter-spacing: -0.02em;
        }

        .ai-revolution .text .ai-highlight {
            background: #0a0a0a;
            color: #fff;
            padding: 0 16px;
            border-radius: 40px;
            display: inline-block;
            font-size: 1.8rem;
        }

        .ai-revolution .text p {
            font-size: 1.05rem;
            color: #3e3e3e;
            margin: 16px 0 24px;
            max-width: 560px;
        }

        .ai-revolution .visual {
            flex: 1 1 180px;
            font-size: 4.2rem;
            text-align: center;
            opacity: 0.8;
            letter-spacing: 4px;
        }

        /* ----- 流程版块 (新增) ----- */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin: 40px 0 30px;
        }

        .process-step {
            text-align: center;
            padding: 20px 12px;
        }

        .process-step .step-num {
            font-size: 3.2rem;
            font-weight: 700;
            color: #d0d0d0;
            letter-spacing: -0.03em;
            line-height: 1;
        }

        .process-step h4 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 10px 0 6px;
        }

        .process-step p {
            color: #5a5a5a;
            font-size: 0.95rem;
        }

        /* ----- 客户证言 (新增) ----- */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
            margin: 40px 0 20px;
        }

        .testimonial-card {
            background: #fff;
            border-radius: 28px;
            padding: 32px 28px;
            border: 1px solid #efefef;
            transition: 0.25s;
        }

        .testimonial-card:hover {
            border-color: #ccc;
            box-shadow: 0 12px 28px rgba(0,0,0,0.02);
        }

        .testimonial-card .stars {
            color: #f5b342;
            font-size: 1.2rem;
            letter-spacing: 2px;
        }

        .testimonial-card blockquote {
            font-size: 1rem;
            font-weight: 400;
            color: #2c2c2c;
            margin: 12px 0 16px;
            line-height: 1.6;
        }

        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-card .author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #e8e8e8;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            color: #444;
        }

        .testimonial-card .author .name {
            font-weight: 600;
            font-size: 0.95rem;
        }

        .testimonial-card .author .title {
            font-size: 0.8rem;
            color: #777;
        }

        /* ----- 常见问题 (新增) ----- */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 40px;
            margin: 40px 0 20px;
        }

        .faq-item {
            border-bottom: 1px solid #eaeaea;
            padding: 18px 0;
        }

        .faq-item h4 {
            font-weight: 600;
            font-size: 1.1rem;
            margin-bottom: 6px;
        }

        .faq-item p {
            color: #555;
            font-size: 0.95rem;
        }

        /* ----- 最终 CTA (新增) ----- */
        .final-cta {
            background: #0a0a0a;
            color: #fff;
            border-radius: 48px;
            padding: 50px 44px;
            margin: 60px 0 40px;
            text-align: center;
        }

        .final-cta h2 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: -0.02em;
        }

        .final-cta p {
            font-size: 1.2rem;
            opacity: 0.8;
            max-width: 500px;
            margin: 12px auto 30px;
        }

        .final-cta .btn-primary {
            background: #fff;
            color: #0a0a0a;
            box-shadow: 0 8px 24px rgba(255,255,255,0.08);
        }

        .final-cta .btn-primary:hover {
            background: #f0f0f0;
        }

        /* ----- 页脚 ----- */
        .footer {
            padding: 50px 0 30px;
            border-top: 1px solid #eaeaea;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
        }

        .footer .copy {
            font-size: 0.9rem;
            color: #6b6b6b;
        }

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

        .footer-links a {
            text-decoration: none;
            color: #2b2b2b;
            font-weight: 450;
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: #000;
        }

        /* ----- 响应式 ----- */
        @media (max-width: 768px) {
            .container {
                padding: 0 24px;
            }
            .navbar {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }
            .nav-links {
                flex-wrap: wrap;
                gap: 18px 24px;
            }
            .hero h1 {
                font-size: 2.8rem;
            }
            .hero h1 .ai-badge {
                font-size: 0.9rem;
                padding: 0 14px;
            }
            .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
            .trust-band {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 28px;
            }
            .ai-revolution {
                flex-direction: column;
                padding: 32px 24px;
            }
            .section-title h2 {
                font-size: 2.2rem;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .final-cta h2 {
                font-size: 2rem;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            .btn-primary, .btn-outline {
                width: 100%;
                text-align: center;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
            }
        }