/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #d4af37;
    --secondary-color: #1a1a1a;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif, 'Microsoft YaHei';
    color: var(--text-color);
    line-height: 1.6;
}

/* 导航栏 */
header {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2a2a2a 100%);
    color: var(--white);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 2px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

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

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

/* 汉堡菜单 */
.mobile-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.mobile-menu span {
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 5px 0;
    transition: 0.3s;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(26, 26, 26, 0.7), rgba(212, 175, 55, 0.3)), 
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="pattern" x="0" y="0" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="30" fill="%23d4af37" opacity="0.1"/></pattern></defs><rect width="1200" height="600" fill="%231a1a1a"/><rect width="1200" height="600" fill="url(%23pattern)"/></svg>');
    background-size: cover;
    background-position: center;
    color: var(--white);
    text-align: center;
    padding: 120px 20px;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    letter-spacing: 3px;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.cta-button {
    display: inline-block;
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 15px 40px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
}

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

section {
    padding: 80px 0;
}

section h2 {
    font-size: 36px;
    text-align: center;
    margin-bottom: 50px;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 20px;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

/* 门店介绍 */
#about {
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

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

.about-text p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: #555;
}

.features-list {
    list-style: none;
    margin: 20px 0;
}

.features-list li {
    padding: 10px 0;
    padding-left: 30px;
    position: relative;
}

.features-list li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.about-image {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 产品介绍 */
#products {
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

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

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(212, 175, 55, 0.2);
}

.product-image {
    width: 100%;
    height: 250px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.product-image.with-image {
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), no-repeat center/cover;
}

.product-image.no-image {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="30" fill="white" opacity="0.1"/></svg>');
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.product-content {
    padding: 25px;
}

.product-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.product-content p {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.product-category {
    display: inline-block;
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

/* 产品优势 */
#advantages {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2a2a2a 100%);
    color: var(--white);
}

#advantages h2 {
    color: var(--white);
}

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

.advantage-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s ease;
}

.advantage-card:hover {
    transform: translateX(10px);
}

.advantage-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.advantage-card p {
    line-height: 1.8;
    color: #ddd;
}

/* 联系方式 */
#contact {
    background: var(--light-bg);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 20px;
    margin: 30px 0 15px 0;
    color: var(--secondary-color);
}

.contact-info p {
    color: #666;
    margin-bottom: 10px;
    font-size: 15px;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--secondary-color);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-icon {
    font-size: 24px;
    color: var(--primary-color);
    margin-right: 20px;
    min-width: 30px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

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

.form-group label {
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--secondary-color);
}

.form-group input,
.form-group textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 5px rgba(212, 175, 55, 0.2);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    font-size: 16px;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: #e6c200;
}

/* 页脚 */
footer {
    background: var(--secondary-color);
    color: var(--white);
    text-align: center;
    padding: 40px 20px;
    border-top: 3px solid var(--primary-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
    text-align: left;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 16px;
}

.footer-section p,
.footer-section a {
    color: #ccc;
    font-size: 14px;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    padding-top: 20px;
    color: #999;
    font-size: 14px;
}

/* 返回顶部按钮 */
#scrollTopBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--secondary-color);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    z-index: 999;
}

#scrollTopBtn:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

#scrollTopBtn.show {
    display: flex;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        display: none;
    }

    .mobile-menu {
        display: flex;
    }

    .hero-content h1 {
        font-size: 32px;
    }

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

    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    section {
        padding: 50px 0;
    }

    section h2 {
        font-size: 28px;
        margin-bottom: 30px;
    }

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

    #scrollTopBtn {
        width: 40px;
        height: 40px;
        font-size: 20px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 24px;
    }

    .navbar {
        flex-direction: column;
        gap: 20px;
    }

    section {
        padding: 30px 0;
    }

    .logo {
        font-size: 18px;
    }
}