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

        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FFD9C4;
            --secondary: #1A1A2E;
            --accent: #F7C948;
            --bg-light: #FAF8F6;
            --text-dark: #1A1A2E;
            --text-muted: #6B6B7A;
            --white: #FFFFFF;
            --shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 30px 80px rgba(255, 107, 53, 0.15);
            --radius: 20px;
            --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        img {
            max-width: 100%;
            display: block;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 38px;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: var(--primary);
            color: var(--white);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.35);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 16px 45px rgba(255, 107, 53, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: var(--white);
            color: var(--secondary);
            border-color: var(--white);
            transform: translateY(-3px);
        }

        .btn-secondary {
            background: var(--secondary);
            color: var(--white);
        }
        .btn-secondary:hover {
            background: #2A2A44;
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(26, 26, 46, 0.25);
        }

        /* ===== 导航 ===== */
        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            padding: 18px 0;
            transition: var(--transition);
            background: transparent;
        }

        .navbar.scrolled {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
            padding: 12px 0;
        }

        .navbar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--white);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
        }

        .navbar.scrolled .logo {
            color: var(--secondary);
        }

        .logo-icon {
            display: inline-block;
            width: 40px;
            height: 40px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: white;
        }

        .logo span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 36px;
            list-style: none;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.85);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }

        .navbar.scrolled .nav-links a {
            color: var(--text-dark);
        }

        .nav-links a:hover {
            color: var(--primary);
        }
        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: var(--transition);
        }
        .nav-links a:hover::after {
            width: 100%;
        }

        .nav-cta {
            background: var(--primary);
            color: var(--white) !important;
            padding: 10px 28px;
            border-radius: 60px;
            font-weight: 600;
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-cta:hover {
            background: var(--primary-dark) !important;
            color: white !important;
            transform: scale(1.04);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: 4px;
            z-index: 1001;
        }
        .hamburger span {
            width: 28px;
            height: 2.5px;
            background: var(--white);
            border-radius: 4px;
            transition: var(--transition);
        }
        .navbar.scrolled .hamburger span {
            background: var(--secondary);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(145deg, #1A1A2E 0%, #2D1B3D 50%, #1A1A2E 100%);
            position: relative;
            overflow: hidden;
            padding-top: 80px;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(247, 201, 72, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero .container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 107, 53, 0.15);
            border: 1px solid rgba(255, 107, 53, 0.25);
            padding: 8px 20px;
            border-radius: 60px;
            color: var(--primary-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.7rem;
        }

        .hero h1 {
            font-size: 4.2rem;
            font-weight: 800;
            line-height: 1.1;
            color: var(--white);
            letter-spacing: -1.5px;
            margin-bottom: 20px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 480px;
            margin-bottom: 36px;
            line-height: 1.8;
        }

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

        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-stats .stat {
            display: flex;
            flex-direction: column;
        }
        .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--white);
            letter-spacing: -0.5px;
        }
        .hero-stats .stat-number span {
            color: var(--primary);
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 2px;
        }

        /* Hero 右侧视觉 */
        .hero-visual {
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        .hero-card {
            background: rgba(255, 255, 255, 0.04);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 32px;
            padding: 40px 36px;
            width: 100%;
            max-width: 440px;
            box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
        }

        .hero-card .card-title {
            color: var(--white);
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .hero-card .card-sub {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            margin-bottom: 24px;
        }

        .hero-card .input-group {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 20px;
        }

        .hero-card .input-group input {
            padding: 16px 20px;
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.06);
            color: var(--white);
            font-size: 0.95rem;
            transition: var(--transition);
            outline: none;
        }
        .hero-card .input-group input::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }
        .hero-card .input-group input:focus {
            border-color: var(--primary);
            background: rgba(255, 255, 255, 0.08);
        }

        .hero-card .btn {
            width: 100%;
            justify-content: center;
            padding: 18px;
            font-size: 1.05rem;
        }

        .hero-card .trust-text {
            text-align: center;
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.8rem;
            margin-top: 16px;
        }
        .hero-card .trust-text i {
            color: var(--accent);
            margin: 0 2px;
        }

        /* ===== 浮动元素装饰 ===== */
        .float-shapes {
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            pointer-events: none;
            overflow: hidden;
            z-index: 1;
        }
        .float-shapes .shape {
            position: absolute;
            border-radius: 50%;
            opacity: 0.06;
        }
        .float-shapes .shape:nth-child(1) {
            width: 300px;
            height: 300px;
            background: var(--primary);
            top: 10%;
            right: 5%;
        }
        .float-shapes .shape:nth-child(2) {
            width: 200px;
            height: 200px;
            background: var(--accent);
            bottom: 15%;
            left: 8%;
        }
        .float-shapes .shape:nth-child(3) {
            width: 120px;
            height: 120px;
            background: var(--primary);
            top: 60%;
            right: 20%;
            opacity: 0.04;
        }

        /* ===== 通用标题 ===== */
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px;
        }

        .section-header .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 6px 18px;
            border-radius: 60px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
        }

        .section-header h2 span {
            color: var(--primary);
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.1rem;
            line-height: 1.7;
        }

        /* ===== 服务优势 ===== */
        .services {
            padding: 100px 0;
            background: var(--white);
        }

        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 32px;
        }

        .service-card {
            background: var(--bg-light);
            padding: 40px 32px;
            border-radius: var(--radius);
            transition: var(--transition);
            border: 1px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 107, 53, 0.1);
        }
        .service-card:hover::before {
            opacity: 1;
        }

        .service-card .icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary-light), #FFE8DD);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== 数据条 ===== */
        .stats-bar {
            background: var(--secondary);
            padding: 60px 0;
            color: var(--white);
        }

        .stats-bar .grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            text-align: center;
        }

        .stats-bar .stat-item .number {
            font-size: 3rem;
            font-weight: 800;
            letter-spacing: -1px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stats-bar .stat-item .label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
            margin-top: 4px;
        }

        /* ===== 案例 ===== */
        .cases {
            padding: 100px 0;
            background: var(--bg-light);
        }

        .cases-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 32px;
        }

        .case-card {
            background: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-hover);
        }

        .case-card .case-img {
            height: 220px;
            background: linear-gradient(135deg, #2D1B3D, #1A1A2E);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3.5rem;
            color: rgba(255, 255, 255, 0.1);
            position: relative;
        }

        .case-card .case-img .badge {
            position: absolute;
            top: 16px;
            right: 16px;
            background: var(--primary);
            color: white;
            padding: 4px 16px;
            border-radius: 60px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .case-card .case-body {
            padding: 28px 30px 30px;
        }

        .case-card .case-body .tag {
            font-size: 0.75rem;
            color: var(--primary);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .case-card .case-body h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 6px 0 12px;
        }

        .case-card .case-body p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .case-card .case-body .result {
            margin-top: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            color: var(--primary);
        }

        /* ===== 流程 ===== */
        .process {
            padding: 100px 0;
            background: var(--white);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step .step-number {
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            font-size: 1.5rem;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 12px 35px rgba(255, 107, 53, 0.25);
        }

        .process-step h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* ===== 评价 ===== */
        .testimonials {
            padding: 100px 0;
            background: var(--bg-light);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .testimonial-card {
            background: var(--white);
            padding: 36px 32px;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .testimonial-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .testimonial-card .stars {
            color: var(--accent);
            font-size: 1rem;
            letter-spacing: 2px;
            margin-bottom: 14px;
        }

        .testimonial-card blockquote {
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-dark);
            font-style: italic;
            margin-bottom: 20px;
        }

        .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .testimonial-card .author .avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 1.1rem;
        }

        .testimonial-card .author .info .name {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .testimonial-card .author .info .role {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

        /* ===== CTA 底部 ===== */
        .cta-bottom {
            padding: 80px 0;
            background: linear-gradient(135deg, #1A1A2E, #2D1B3D);
            color: var(--white);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-bottom::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }

        .cta-bottom .container {
            position: relative;
            z-index: 2;
        }

        .cta-bottom h2 {
            font-size: 2.8rem;
            font-weight: 700;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .cta-bottom h2 span {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .cta-bottom p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }

        .cta-bottom .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #111120;
            color: rgba(255, 255, 255, 0.5);
            padding: 60px 0 30px;
        }

        .footer .grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer .brand .logo {
            color: var(--white);
            font-size: 1.5rem;
            margin-bottom: 16px;
        }

        .footer .brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 300px;
        }

        .footer .col h5 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer .col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer .col ul a {
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer .col ul a:hover {
            color: var(--primary);
        }

        .footer .bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
        }

        .footer .socials {
            display: flex;
            gap: 16px;
        }
        .footer .socials a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            color: rgba(255, 255, 255, 0.4);
        }
        .footer .socials a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 107, 53, 0.08);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 3.2rem;
            }
            .hero .container {
                gap: 40px;
            }
            .stats-bar .grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer .grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(26, 26, 46, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                justify-content: center;
                gap: 30px;
                transform: translateX(100%);
                transition: var(--transition);
                padding: 40px;
            }

            .nav-links.open {
                transform: translateX(0);
            }

            .nav-links a {
                color: var(--white) !important;
                font-size: 1.3rem;
            }

            .nav-cta {
                background: var(--primary);
                color: white !important;
            }

            .hamburger {
                display: flex;
            }

            .hero .container {
                grid-template-columns: 1fr;
                text-align: center;
                padding-top: 40px;
            }

            .hero h1 {
                font-size: 2.6rem;
            }
            .hero p {
                margin: 0 auto 36px;
            }
            .hero-actions {
                justify-content: center;
            }
            .hero-stats {
                justify-content: center;
                gap: 30px;
                flex-wrap: wrap;
            }
            .hero-card {
                max-width: 100%;
            }

            .section-header h2 {
                font-size: 2.2rem;
            }

            .services-grid {
                grid-template-columns: 1fr;
            }

            .cases-grid {
                grid-template-columns: 1fr;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 30px;
            }

            .testimonials-grid {
                grid-template-columns: 1fr;
            }

            .footer .grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer .bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .cta-bottom h2 {
                font-size: 2rem;
            }

            .stats-bar .grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .stats-bar .stat-item .number {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 2rem;
            }
            .hero-card {
                padding: 28px 20px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.8rem;
            }
            .btn {
                padding: 14px 28px;
                font-size: 0.9rem;
            }
            .container {
                padding: 0 16px;
            }
        }