/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

:root {
    --primary-color: #ff4d6d;
    --secondary-color: #7209b7;
    --accent-color: #4cc9f0;
    --dark-color: #2b2d42;
    --light-color: #f8f9fa;
    --gradient-1: linear-gradient(135deg, #ff6b6b, #ff8e53);
    --gradient-2: linear-gradient(135deg, #7209b7, #f72585);
    --gradient-3: linear-gradient(135deg, #4361ee, #4cc9f0);
    --gradient-4: linear-gradient(135deg, #f72585, #b5179e);
}

body {
    background-color: #f5f5f5;
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background: var(--gradient-1);
    color: white;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 77, 109, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 77, 109, 0.4);
}

/* 导航栏样式 */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: bold;
    color: var(--dark-color);
}

.logo h1 span {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

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

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--dark-color);
    cursor: pointer;
}

/* 英雄区域样式 */
.hero {
    background: var(--gradient-2);
    color: white;
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 100px 100px;
    opacity: 0.3;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 100px 100px;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h2 span {
    color: #ffdd00;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 部分标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 36px;
    margin-bottom: 10px;
    color: var(--dark-color);
}

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

.section-title p {
    font-size: 16px;
    color: #666;
}

/* 商品展示样式 */
.products {
    padding: 100px 0;
    background-color: white;
}

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

.product-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.product-rating {
    color: #ffc107;
    margin-bottom: 10px;
}

.product-price {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary-color);
}

/* 产品特色样式 */
.features {
    padding: 100px 0;
    background: var(--gradient-3);
    color: white;
}

.features .section-title h2,
.features .section-title p {
    color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 20px;
    color: #ffdd00;
}

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

/* 客户评价样式 */
.testimonials {
    padding: 100px 0;
    background-color: #f8f9fa;
}

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

.testimonial-card {
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.testimonial-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 3px solid var(--primary-color);
}

.testimonial-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-rating {
    color: #ffc107;
    margin-bottom: 15px;
}

.testimonial-content p {
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-content h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.testimonial-role {
    color: #666;
    font-size: 14px;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: var(--gradient-4);
    color: white;
}

.contact .section-title h2,
.contact .section-title p {
    color: white;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto 50px;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 16px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group textarea {
    height: 150px;
    resize: none;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}

.contact-item {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.contact-item i {
    font-size: 24px;
    margin-bottom: 15px;
    color: #ffdd00;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-logo h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.footer-logo h2 span {
    color: var(--primary-color);
}

.footer-links h3,
.footer-social h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

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

.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h2 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: all 0.3s ease;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 15px 0;
    }

    .menu-toggle {
        display: block;
    }

    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title h2 {
        font-size: 28px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 120px 0 80px;
    }

    .hero h2 {
        font-size: 24px;
    }

    .products, .features, .testimonials, .contact {
        padding: 80px 0;
    }

    .product-grid, .feature-grid, .testimonial-grid {
        grid-template-columns: 1fr;
    }
}