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

:root {
    --primary-color: #ff6b9d;
    --secondary-color: #c44569;
    --accent-color: #ffc048;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --border-radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    z-index: 1000;
    border-bottom: 1px solid #eee;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

.menu-toggle {
    display: flex;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
    content: '';
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: 0.3s;
}

.nav-menu {
    list-style: none;
    display: none;
    flex-direction: column;
    background: var(--white);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.nav-menu.active {
    display: flex;
    max-height: 400px;
    padding: 10px 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--text-dark);
    text-decoration: none;
    transition: 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background: var(--bg-light);
}

/* 首页横幅 */
.hero {
    margin-top: 60px;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: linear-gradient(rgba(102, 126, 234, 0.7), rgba(118, 75, 162, 0.7)), url('https://images.unsplash.com/photo-1519741497674-611481863552?w=1200&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
}

.hero-content h1 {
    font-size: 32px;
    margin-bottom: 15px;
    animation: fadeInUp 1s ease;
}

.subtitle {
    font-size: 20px;
    margin-bottom: 10px;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.description {
    font-size: 16px;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--accent-color);
    color: var(--text-dark);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: bold;
    transition: transform 0.3s, opacity 0.3s;
    animation: fadeInUp 1s ease 0.6s backwards;
}

.cta-button:hover {
    transform: translateY(-2px);
    opacity: 0.9;
}

/* 通用区块样式 */
section {
    padding: 50px 20px;
}

.section-title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    margin: 15px auto 0;
}

/* 服务项目 */
.services {
    background: var(--bg-light);
}

.services-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background: var(--white);
    padding: 30px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    font-size: 50px;
    margin-bottom: 15px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.service-features {
    list-style: none;
    text-align: left;
    margin: 20px auto;
    max-width: 250px;
}

.service-features li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    color: var(--text-dark);
}

.service-features li::before {
    content: '✓ ';
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 8px;
}

.service-link {
    display: inline-block;
    margin-top: 15px;
    padding: 10px 30px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    transition: 0.3s;
}

.service-link:hover {
    opacity: 0.9;
}

/* 作品展示 */
.gallery {
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    max-width: 1200px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    aspect-ratio: 4/3;
}

.gallery-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: cover;
    background-position: center;
    transition: transform 0.3s;
}

.gallery-item:nth-child(1) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1606216794074-735e91aa2c92?w=800&q=80');
}

.gallery-item:nth-child(2) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1591604466107-ec97de577aff?w=800&q=80');
}

.gallery-item:nth-child(3) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1519225421980-715cb0215aed?w=800&q=80');
}

.gallery-item:nth-child(4) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1511285560929-80b456fea0bc?w=800&q=80');
}

.gallery-item:nth-child(5) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1537633552985-df8429e8048b?w=800&q=80');
}

.gallery-item:nth-child(6) .gallery-image {
    background-image: url('https://images.unsplash.com/photo-1583939003579-730e3918a45a?w=800&q=80');
}

.gallery-item:hover .gallery-image {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-overlay h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.gallery-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

/* 关于我们 */
.about {
    background: var(--bg-light);
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    text-align: center;
    padding: 20px;
    background: var(--white);
    border-radius: var(--border-radius);
}

.feature-number {
    display: block;
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.feature-label {
    display: block;
    color: var(--text-light);
    font-size: 14px;
}

.about-image {
    width: 100%;
    height: 250px;
    background-image: url('https://images.unsplash.com/photo-1460978812857-470ed1c77af0?w=1200&q=80');
    background-size: cover;
    background-position: center;
    border-radius: var(--border-radius);
    margin-top: 20px;
}

/* 价格套餐 */
.pricing {
    background: var(--white);
}

.pricing-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.price-card {
    background: var(--bg-light);
    padding: 30px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    position: relative;
    transition: transform 0.3s;
}

.price-card:hover {
    transform: translateY(-5px);
}

.price-card.featured {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
}

.badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: var(--text-dark);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.price-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.price-card.featured h3 {
    color: var(--white);
}

.price {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.price-card.featured .price {
    color: var(--accent-color);
}

.price-features {
    list-style: none;
    margin: 20px auto;
    max-width: 250px;
    text-align: left;
}

.price-features li {
    padding: 10px 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.price-card.featured .price-features li {
    border-bottom-color: rgba(255,255,255,0.2);
}

.price-features li::before {
    content: '✓ ';
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 8px;
}

.price-card.featured .price-features li::before {
    color: var(--accent-color);
}

.price-button {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 40px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    transition: 0.3s;
}

.price-card.featured .price-button {
    background: var(--accent-color);
    color: var(--text-dark);
}

.price-button:hover {
    opacity: 0.9;
}

/* 联系预约 */
.contact {
    background: var(--bg-light);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--white);
    border-radius: 8px;
}

.info-icon {
    font-size: 24px;
    margin-right: 15px;
}

.info-item strong {
    display: block;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.info-item p {
    color: var(--text-light);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icon {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: 50%;
    text-decoration: none;
    font-size: 20px;
    transition: transform 0.3s;
}

.social-icon:hover {
    transform: translateY(-3px);
}

/* 表单 */
.contact-form {
    background: var(--white);
    padding: 30px 20px;
    border-radius: var(--border-radius);
}

.contact-form h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.submit-button {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
    text-align: center;
}

.submit-button:hover {
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 40px 20px 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--white);
}

.footer-section p {
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
    margin-bottom: 10px;
}

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: 0.3s;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.5);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 45px;
    height: 45px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: 0.3s;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 - 平板 */
@media (min-width: 600px) {
    .services-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 响应式设计 - 桌面 */
@media (min-width: 900px) {
    .menu-toggle {
        display: none;
    }
    
    .nav-menu {
        display: flex;
        flex-direction: row;
        max-height: none;
    }
    
    .nav-menu li {
        margin-left: 30px;
    }
    
    .nav-menu a {
        padding: 5px 0;
    }
    
    .services-container {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pricing-container {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-content h1 {
        font-size: 48px;
    }
    
    .subtitle {
        font-size: 24px;
    }
}