* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary: #0ea5e9;
    --accent: #f59e0b;
    --accent-light: #fde68a;
    --success: #10b981;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --light-gray: #e2e8f0;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

body {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

.nav-links .mobile-cta {
    display: none;
}

.nav-links a:hover {
    color: var(--primary);
}

.cta-button {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.4);
}

/* Hero Section */
.hero {
    padding: 100px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.1);
    z-index: -1;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: -100px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.1);
    z-index: -1;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 20px;
    color: var(--dark);
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.hero p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--gray);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 30px;
}

.secondary-button {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
    text-decoration: none;
}

.secondary-button:hover {
    background: var(--light);
    transform: translateY(-3px);
}

/* Features Section */
.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark);
    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(--accent);
    border-radius: 2px;
}

.section-title p {
    color: var(--gray);
    max-width: 700px;
    margin: 30px auto 0;
    font-size: 1.2rem;
}

.features {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    transition: all 0.4s;
    border: 1px solid var(--light-gray);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-content {
    display: flex;
    gap: 25px;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-text h3 i {
    color: var(--accent);
}

.feature-text p {
    color: var(--gray);
    margin-bottom: 15px;
}

.feature-gif {
    width: 200px;
    height: 150px;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
}

.feature-gif::before {
    content: "GIF演示";
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    z-index: 2;
}

.feature-gif::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(14, 165, 233, 0.2) 100%);
    z-index: 1;
}

.play-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    color: var(--primary);
    font-size: 1.5rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

/* Registration Form */
.registration-section {
    background: white;
    border-radius: 30px;
    padding: 80px 0;
    margin: 60px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.registration-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.registration-info {
    flex: 1;
    min-width: 300px;
    padding: 20px;
}

.registration-info h2 {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 20px;
}

.benefits-list {
    list-style: none;
    margin-top: 30px;
}

.benefits-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.benefits-list li i {
    color: var(--success);
    margin-right: 10px;
    margin-top: 5px;
    font-size: 1.2rem;
}

.price-tag {
    display: inline-block;
    background: var(--accent-light);
    color: var(--dark);
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    margin-top: 15px;
    font-size: 1.5rem;
}

.price-tag span {
    color: var(--primary);
    font-size: 1.8rem;
}

.registration-form-container {
    flex: 1;
    min-width: 300px;
    background: var(--primary-light);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    scroll-margin-top: 120px; /* 为锚点滚动留出空间 */
    margin-top: 40px;
}

.form-title {
    text-align: center;
    margin-bottom: 30px;
    color: var(--dark);
}

.form-title h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.form-title p {
    color: var(--gray);
}

.registration-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input {
    padding: 14px 18px;
    border-radius: 12px;
    border: 1px solid #cbd5e1;
    font-size: 1rem;
    transition: all 0.3s;
    width: 100%;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.sms-code-group {
    display: flex;
    align-items: flex-end;
    gap: 10px;
}

.sms-code-group .form-group {
    flex: 1;
    margin-bottom: 0;
}

.sms-btn {
    background: var(--accent);
    color: white;
    border: none;
    height: 51px;
    margin-top: 0;
    border-radius: 12px;
    padding: 0 20px;
    cursor: pointer;
    font-weight: 600;
    transition: background 0.3s;
    white-space: nowrap;
    flex-shrink: 0;
}

.sms-btn:hover {
    background: #e69008;
}

.submit-btn {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(37, 99, 235, 0.4);
}

.agreement {
    font-size: 0.9rem;
    color: var(--gray);
    text-align: center;
    margin-top: 15px;
}

.agreement a {
    color: var(--primary);
    text-decoration: none;
}

/* Testimonials */
.testimonials {
    padding: 80px 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.05);
    border-left: 4px solid var(--primary);
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--light-gray);
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
}

.testimonial-info h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.testimonial-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    background: var(--gradient);
    border-radius: 30px;
    padding: 80px 40px;
    text-align: center;
    color: white;
    margin: 60px 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.cta-section::after {
    content: "";
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.cta-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.cta-section .cta-button {
    background: white;
    color: var(--primary);
    font-size: 1.1rem;
    padding: 16px 40px;
    position: relative;
    z-index: 1;
}

.cta-section .cta-button:hover {
    background: var(--light);
    transform: scale(1.05);
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
    border-top-left-radius: 30px;
    border-top-right-radius: 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column ul li a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* Animation */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 4s ease-in-out infinite;
}

/* 防止触摸时的高亮效果 */
* {
    -webkit-tap-highlight-color: transparent;
}

/* 确保表单在移动设备上正常工作 */
input[type="text"],
input[type="tel"],
input[type="password"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* 确保图片不会溢出容器 */
img {
    max-width: 100%;
    height: auto;
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--primary);
    cursor: pointer;
    z-index: 101;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .section-title h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        flex-direction: column;
        background: white;
        width: 80%;
        height: 100vh;
        padding: 100px 40px 40px;
        transition: right 0.3s;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        z-index: 100;
        overflow-y: auto;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
        padding: 15px 0;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .navbar > .cta-button {
        display: none;
    }
    
    .mobile-cta {
        margin-top: 20px;
        width: 100%;
        text-align: center;
    }
    
    .hero {
        padding: 60px 0 40px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
        line-height: 1.3;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .cta-button, .secondary-button {
        width: 100%;
        text-align: center;
        padding: 15px 20px;
    }

    .section-title {
        margin-bottom: 40px;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .section-title p {
        font-size: 1.1rem;
        padding: 0 10px;
    }

    .features {
        padding: 60px 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 15px;
    }
    
    .feature-card {
        padding: 25px 20px;
    }

    .feature-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .feature-text h3 {
        font-size: 1.4rem;
    }

    .feature-gif {
        width: 100%;
        height: 200px;
    }
    
    .registration-section {
        margin: 40px 20px;
        padding: 60px 0;
        border-radius: 20px;
    }

    .registration-container {
        flex-direction: column;
        gap: 30px;
        padding: 0 20px;
    }
    
    .registration-info h2 {
        font-size: 2rem;
        text-align: center;
    }
    
    .price-tag {
        display: block;
        text-align: center;
        margin: 20px auto;
    }
    
    .registration-form-container {
        padding: 30px 20px;
    }
    
    .sms-code-group {
        flex-direction: row;
        gap: 10px;
    }
    
    .sms-btn {
        height: 50px;
        padding: 0 15px;
        font-size: 0.9rem;
    }

    .testimonials {
        padding: 60px 0;
    }
    
    .testimonial-grid {
        gap: 20px;
        padding: 0 15px;
    }
    
    .cta-section {
        margin: 40px 20px;
        padding: 60px 20px;
        border-radius: 20px;
    }
    
    .cta-section h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 20px;
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .navbar {
        padding: 15px 0;
    }
    
    .logo {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .registration-info h2 {
        font-size: 1.8rem;
    }
    
    .benefits-list li {
        font-size: 1rem;
    }
    
    .price-tag {
        font-size: 1.3rem;
    }
    
    .price-tag span {
        font-size: 1.6rem;
    }
    
    .cta-section h2 {
        font-size: 1.8rem;
    }
    
    .cta-section p {
        font-size: 1.1rem;
    }
    
    .feature-text h3 {
        font-size: 1.3rem;
    }
    
    .feature-gif {
        height: 180px;
    }
}