:root {
            --primary: #2A4365;
            --primary-light: #3182CE;
            --secondary: #DD6B20;
            --accent: #38A169;
            --light: #FFFFFF;
            --light-bg: #F7FAFC;
            --light-border: #E2E8F0;
            --dark: #1A202C;
            --text: #4A5568;
            --text-light: #718096;
            --success: #38A169;
            --warning: #D69E2E;
            --card-bg: #FFFFFF;
            --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            --gradient-primary: linear-gradient(135deg, #2A4365 0%, #3182CE 100%);
            --gradient-accent: linear-gradient(135deg, #38A169 0%, #68D391 100%);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }
        
        body {
            background-color: var(--light-bg);
            color: var(--text);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }
        
        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--dark);
            font-family: 'Inter', sans-serif;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        /* Trust Badges */
        .trust-badges {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 25px;
            flex-wrap: wrap;
            padding: 20px 0;
            background: var(--light);
            border-bottom: 1px solid var(--light-border);
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }
        
        .trust-badge {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text);
            padding: 8px 16px;
            background: var(--light-bg);
            border-radius: 20px;
        }
        
        .trust-badge i {
            color: var(--accent);
        }
        
        /* Header Styles */
        header {
            background: var(--light);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        
        nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
        }
        
        .logo {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            text-decoration: none;
        }
        
        .logo i {
            margin-right: 12px;
            color: var(--secondary);
            font-size: 28px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--dark);
            font-weight: 600;
            transition: color 0.3s;
            font-size: 16px;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-links a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            bottom: -5px;
            left: 0;
            background-color: var(--secondary);
            transition: width 0.3s;
            border-radius: 2px;
        }
        
        .nav-links a:hover:after {
            width: 100%;
        }
        
        .nav-buttons .btn {
            margin-left: 20px;
        }
        
        .mobile-menu {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--dark);
            background: none;
            border: none;
        }
        
        /* Hero Section */
        .hero {
            background: var(--gradient-primary);
            color: white;
            padding: 100px 0 120px;
            position: relative;
            overflow: hidden;
        }
        
        .hero:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('static/pattern.png');
            opacity: 0.1;
        }
        
        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        
        .hero-text {
            padding-right: 20px;
        }
        
        .hero-image {
            position: relative;
        }
        
        .hero-image img {
            width: 100%;
            border-radius: 16px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            transform: perspective(1000px) rotateY(-5deg);
            transition: transform 0.5s ease;
        }
        
        .hero-image:hover img {
            transform: perspective(1000px) rotateY(0deg);
        }
        
        .hero h1 {
            font-size: 3.2rem;
            margin-bottom: 20px;
            color: white;
            line-height: 1.2;
        }
        
        .hero h1 span {
            color: var(--secondary);
            position: relative;
            display: inline-block;
        }
        
        .hero h1 span:after {
            content: '';
            position: absolute;
            bottom: 5px;
            left: 0;
            width: 100%;
            height: 8px;
            background: rgba(221, 107, 32, 0.2);
            z-index: -1;
        }
        
        .hero .subtitle {
            font-size: 1.3rem;
            margin-bottom: 30px;
            opacity: 0.9;
            font-weight: 400;
        }
        
        .hero-features {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin: 40px 0;
        }
        
        .hero-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.1);
            padding: 15px;
            border-radius: 10px;
            backdrop-filter: blur(10px);
        }
        
        .hero-feature i {
            color: var(--secondary);
            font-size: 20px;
            flex-shrink: 0;
        }
        
        .hero-feature span {
            font-weight: 500;
        }
        
        .hero-buttons {
            display: flex;
            gap: 20px;
            margin-top: 40px;
        }
        
        /* Stats Section */
        .stats {
            padding: 80px 0;
            background: var(--light);
            position: relative;
            top: -40px;
            margin-bottom: -40px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            margin: 0 20px;
        }
        
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }
        
        .stat-card {
            text-align: center;
            padding: 30px 20px;
            border-radius: 12px;
            background: var(--light-bg);
            transition: transform 0.3s ease;
        }
        
        .stat-card:hover {
            transform: translateY(-5px);
            background: white;
            box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        }
        
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 10px;
            line-height: 1;
        }
        
        .stat-label {
            color: var(--text-light);
            font-size: 15px;
        }
        
        /* How It Works */
        .how-it-works {
            padding: 100px 0;
            background: var(--light-bg);
        }
        
        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 60px;
            position: relative;
        }
        
        .steps:before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 3px;
            background: var(--light-border);
            z-index: 1;
        }
        
        .step {
            text-align: center;
            position: relative;
            z-index: 2;
        }
        
        .step-number {
            width: 80px;
            height: 80px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: white;
            margin: 0 auto 25px;
            font-weight: 700;
            box-shadow: 0 10px 20px rgba(42, 67, 101, 0.2);
            border: 5px solid white;
        }
        
        .step-content {
            background: white;
            padding: 30px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            height: 100%;
        }
        
        .step h3 {
            margin-bottom: 15px;
            color: var(--primary);
            font-size: 1.3rem;
        }
        
        .step p {
            color: var(--text);
            font-size: 15px;
        }
        
        /* Job Categories */
        .job-categories {
            padding: 100px 0;
            background: white;
        }
        
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-top: 50px;
        }
        
        .category-card {
            background: var(--card-bg);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--light-border);
            position: relative;
        }
        
        .category-card:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: var(--gradient-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }
        
        .category-card:hover:before {
            transform: scaleX(1);
        }
        
        .category-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }
        
        .category-header {
            padding: 30px 30px 20px;
            position: relative;
        }
        
        .category-icon {
            width: 60px;
            height: 60px;
            background: var(--light-bg);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
            font-size: 24px;
        }
        
        .category-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--dark);
        }
        
        .category-description {
            color: var(--text-light);
            margin-bottom: 20px;
            font-size: 15px;
        }
        
        .category-features {
            padding: 0 30px 30px;
        }
        
        .category-feature {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            color: var(--text);
            font-size: 14px;
        }
        
        .category-feature i {
            color: var(--accent);
            font-size: 12px;
        }
        
        .category-cta {
            padding: 20px 30px;
            background: var(--light-bg);
            border-top: 1px solid var(--light-border);
            text-align: center;
        }
        
        /* Benefits Section */
        .benefits {
            padding: 100px 0;
            background: linear-gradient(135deg, #F7FAFC 0%, #EDF2F7 100%);
        }
        
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 40px;
            margin-top: 50px;
        }
        
        .benefit-card {
            background: white;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s ease;
        }
        
        .benefit-card:hover {
            transform: translateY(-5px);
        }
        
        .benefit-icon {
            width: 70px;
            height: 70px;
            background: var(--light-bg);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
            font-size: 28px;
        }
        
        .benefit-card h3 {
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary);
        }
        
        .benefit-card p {
            color: var(--text);
            line-height: 1.7;
        }
        
        /* Testimonials */
        .testimonials {
            padding: 100px 0;
            background: white;
        }
        
        .testimonial-slider {
            margin-top: 50px;
            position: relative;
        }
        
        .testimonial-track {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }
        
        .testimonial-card {
            background: var(--light-bg);
            padding: 35px;
            border-radius: 20px;
            border: 1px solid var(--light-border);
        }
        
        .testimonial-rating {
            color: var(--warning);
            margin-bottom: 20px;
            font-size: 18px;
        }
        
        .testimonial-text {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            margin-bottom: 25px;
            position: relative;
            padding-left: 20px;
        }
        
        .testimonial-text:before {
            content: '"';
            position: absolute;
            left: 0;
            top: -10px;
            font-size: 60px;
            color: var(--primary-light);
            opacity: 0.2;
            font-family: serif;
            line-height: 1;
        }
        
        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 600;
            font-size: 20px;
        }
        
        .author-info h4 {
            font-size: 16px;
            margin-bottom: 5px;
            color: var(--dark);
        }
        
        .author-info p {
            color: var(--text-light);
            font-size: 14px;
        }
        
        /* FAQ Section */
        .faq {
            padding: 100px 0;
            background: var(--light-bg);
        }
        
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 50px;
        }
        
        .faq-column h3 {
            font-size: 1.3rem;
            margin-bottom: 25px;
            color: var(--primary);
        }
        
        .faq-item {
            margin-bottom: 20px;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        
        .faq-question {
            padding: 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s;
        }
        
        .faq-question:hover {
            background: var(--light-bg);
        }
        
        .faq-question:after {
            content: '+';
            font-size: 24px;
            color: var(--primary);
            transition: transform 0.3s;
            font-weight: 300;
        }
        
        .faq-question.active:after {
            content: '-';
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease;
            color: var(--text);
            font-size: 15px;
            line-height: 1.7;
        }
        
        .faq-answer.show {
            padding: 0 20px 20px;
            max-height: 500px;
        }
        
        /* CTA Section */
        .cta {
            padding: 100px 0;
            background: var(--gradient-primary);
            color: white;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .cta:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('static/pattern.png');
            opacity: 0.1;
        }
        
        .cta-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .cta h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            color: white;
        }
        
        .cta p {
            font-size: 1.2rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }
        
        .cta-badges {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 40px;
            flex-wrap: wrap;
        }
        
        .cta-badge {
            background: rgba(255, 255, 255, 0.15);
            padding: 12px 24px;
            border-radius: 30px;
            font-size: 15px;
            backdrop-filter: blur(10px);
        }
        
        /* Footer */
        footer {
            background: var(--dark);
            color: white;
            padding: 80px 0 40px;
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 60px;
            margin-bottom: 50px;
        }
        
        .footer-brand .logo {
            color: white;
            margin-bottom: 20px;
        }
        
        .footer-description {
            color: #CBD5E0;
            margin-bottom: 30px;
            line-height: 1.7;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 25px;
            color: white;
            font-weight: 600;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 12px;
        }
        
        .footer-links a {
            color: #CBD5E0;
            text-decoration: none;
            transition: color 0.3s;
            font-size: 15px;
        }
        
        .footer-links a:hover {
            color: var(--secondary);
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 30px;
        }
        
        .social-links a {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 18px;
            transition: all 0.3s;
        }
        
        .social-links a:hover {
            background: var(--secondary);
            transform: translateY(-3px);
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: #A0AEC0;
            font-size: 14px;
        }
        
        /* Button Styles */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 32px;
            border-radius: 10px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s;
            cursor: pointer;
            border: none;
            font-size: 16px;
            gap: 10px;
        }
        
        .btn i {
            font-size: 16px;
        }
        
        .btn-primary {
            background: var(--secondary);
            color: white;
            box-shadow: 0 4px 12px rgba(221, 107, 32, 0.3);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(221, 107, 32, 0.4);
            background: #C05621;
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--secondary);
            border: 2px solid var(--secondary);
        }
        
        .btn-secondary:hover {
            background: rgba(221, 107, 32, 0.1);
            transform: translateY(-3px);
        }
        
        .btn-outline {
            background: transparent;
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: white;
            transform: translateY(-3px);
        }
        
        .btn-large {
            padding: 18px 40px;
            font-size: 18px;
        }
        
        /* Section Title */
        .section-title {
            text-align: center;
            margin-bottom: 60px;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        .section-title h2:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: var(--secondary);
            border-radius: 2px;
        }
        
        .section-title p {
            color: var(--text-light);
            max-width: 700px;
            margin: 0 auto;
            font-size: 1.1rem;
        }
        
        /* Mobile Navigation */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--light);
            z-index: 1000;
            flex-direction: column;
            padding: 100px 40px 40px;
        }
        
        .mobile-nav.active {
            display: flex;
        }
        
        .mobile-nav-links {
            list-style: none;
            flex: 1;
        }
        
        .mobile-nav-links li {
            margin-bottom: 25px;
        }
        
        .mobile-nav-links a {
            font-size: 1.5rem;
            color: var(--dark);
            text-decoration: none;
            font-weight: 600;
            transition: color 0.3s;
        }
        
        .mobile-nav-links a:hover {
            color: var(--secondary);
        }
        
        .mobile-nav-close {
            position: absolute;
            top: 30px;
            right: 30px;
            font-size: 28px;
            color: var(--dark);
            cursor: pointer;
            background: none;
            border: none;
        }
        
        /* Responsive Design */
        @media (max-width: 1200px) {
            .hero h1 {
                font-size: 2.8rem;
            }
            
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 50px;
                text-align: center;
            }
            
            .hero-text {
                padding-right: 0;
            }
            
            .hero-features {
                justify-content: center;
                max-width: 500px;
                margin-left: auto;
                margin-right: auto;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .steps {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            
            .steps:before {
                display: none;
            }
            
            .benefits-grid {
                grid-template-columns: 1fr;
            }
            
            .testimonial-track {
                grid-template-columns: 1fr;
            }
            
            .faq-grid {
                grid-template-columns: 1fr;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-links, .nav-buttons {
                display: none;
            }
            
            .mobile-menu {
                display: block;
            }
            
            .hero {
                padding: 80px 0;
            }
            
            .hero h1 {
                font-size: 2.2rem;
            }
            
            .hero .subtitle {
                font-size: 1.1rem;
            }
            
            .hero-features {
                grid-template-columns: 1fr;
            }
            
            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .hero-buttons .btn {
                width: 100%;
                max-width: 300px;
            }
            
            .categories-grid {
                grid-template-columns: 1fr;
            }
            
            .stats {
                margin: 0 10px;
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .cta h2 {
                font-size: 2.2rem;
            }
        }
        
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .stat-number {
                font-size: 2.2rem;
            }
            
            .step-content {
                padding: 25px;
            }
            
            .category-header, .category-features, .category-cta {
                padding-left: 20px;
                padding-right: 20px;
            }
            
            .benefit-card {
                padding: 30px 20px;
            }
            
            .testimonial-card {
                padding: 25px 20px;
            }
            
            .cta h2 {
                font-size: 1.8rem;
            }
            
            .cta-badges {
                flex-direction: column;
                align-items: center;
            }
        }
        .form-container {
            background-color: #fff;
            border-radius: 12px;
            max-width: 600px;
            margin: 0 auto;
            padding: 24px;
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
        }

        h1 {
            font-size: 32px;
            margin-bottom: 16px;
            color: #111;
        }
        .desc {
            color: #666;
            margin-bottom: 24px;
            line-height: 1.6;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .label {
            display: block;
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 1px;
            color: #333;
        }
        .label .star {
            color: #ff4d4f;
            margin-right: 4px;
        }
        input[type="text"],
        input[type="email"],
        input[type="number"] {
            width: 100%;
            padding: 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 16px;
        }
        .phone-group {
            display: flex;
            gap: 8px;
        }
        .phone-select {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 14px 10px;
            border: 1px solid #ddd;
            border-radius: 8px;
            background: #fff;
            min-width: 110px;
        }
        .phone-select img {
            width: 24px;
            height: 16px;
        }
        .phone-input {
            flex: 1;
			border: 1px solid #ddd;
        }
        .radio-group {
            display: flex;
            gap: 30px;
            padding: 8px 0;
        }
        .radio-option {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
        }
        .submit-btn {
            width: 100%;
            background-color: #DD6B20;
            color: white;
            border: none;
            padding: 16px;
            font-size: 20px;
            border-radius: 8px;
            cursor: pointer;
            margin-top: 10px;
        }
        .note {
            margin-top: 16px;
            color: #ff4d4f;
            font-size: 15px;
            text-align: center;
        }

        /* 手机端专用：弹窗和打开按钮 */
        .open-btn {
            display: none;
            background-color: #ff7a00;
            color: white;
            border: none;
            padding: 14px 32px;
            font-size: 18px;
            border-radius: 8px;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(255, 122, 0, 0.3);
            margin: 20px auto;
        }
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            justify-content: center;
            align-items: center;
            padding: 20px;
            z-index: 1000;
        }
        .modal-content {
    background-color: #fff;
    border-radius: 12px;
    width: 100%;
    max-height: 99vh; /* 核心：限制最大高度 */
    overflow-y: auto; /* 核心：内部可滚动 */
    padding: 10px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.2);
    margin: auto 0; /* 垂直居中 */
    box-sizing: border-box;
}

        /* 手机端样式（宽度小于 768px） */
        @media (max-width: 767px) {
            .form-container {
                display: none;
            }
            .open-btn {
                display: block;
            }
        }