/* 基础样式 */
:root {
    --primary-color: #1a1a1a;
    --secondary-color: #333333;
    --accent-color: #d4af37;
    --light-color: #f8f8f8;
    --gray-color: #888888;
    --light-gray: #e0e0e0;
    --white: #ffffff;
    --black: #000000;
    --font-primary: 'Inter', sans-serif;
    --font-secondary: 'Playfair Display', serif;
    --transition: all 0.3s ease;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--secondary-color);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

/* 排版 */
h1, h2, h3, h4 {
    font-family: var(--font-secondary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.8rem;
}

p {
    margin-bottom: 1.5rem;
    color: var(--gray-color);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.highlight {
    color: var(--accent-color);
}

/* 按钮 */
.btn-primary, .btn-secondary, .btn-outline, .btn-small {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--light-gray);
}

.btn-outline:hover {
    border-color: var(--primary-color);
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: 20px 0;
}

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

.logo {
    font-family: var(--font-secondary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    color: var(--secondary-color);
}

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

.nav-links a.active {
    color: var(--accent-color);
    font-weight: 600;
    position: relative;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
}

.nav-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    padding-top: 140px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, #f8f8f8 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.hero-image {
    flex: 1;
    height: 500px;
    background: linear-gradient(135deg, var(--light-gray) 0%, #d0d0d0 100%);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

/* 区块头部 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-color);
}

/* 关于我们 */
.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    height: 400px;
    background-color: var(--light-gray);
    border-radius: var(--radius);
}

.stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-secondary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-color);
}

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

.product-card {
    background-color: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.product-image {
    height: 200px;
    background-color: var(--light-gray);
}

.product-info {
    padding: 25px;
}

.product-name {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.product-description {
    font-size: 0.95rem;
    margin-bottom: 15px;
    color: var(--gray-color);
}

.product-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* 服务网格 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    text-align: center;
    padding: 40px 25px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
}

/* 联系 */
.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
    margin-top: 5px;
}

.contact-item h4 {
    margin-bottom: 5px;
}

.contact-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid var(--light-gray);
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

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

.contact-form textarea {
    resize: vertical;
}

/* 页脚 */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    font-family: var(--font-secondary);
}

.footer-section p {
    color: #aaa;
    margin-bottom: 20px;
}

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

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

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

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 1.2rem;
}

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

.newsletter-form {
    display: flex;
    margin-top: 15px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    border: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-family: var(--font-primary);
}

.newsletter-form button {
    border-radius: 0 var(--radius) var(--radius) 0;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: #aaa;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 20px;
}

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

/* 产品详情页面 */
.product-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
    color: var(--white);
    text-align: center;
    padding-top: 160px;
    padding-bottom: 80px;
}

.product-hero .hero-subtitle {
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-detail-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.product-detail-info h2 {
    font-size: 2.2rem;
    margin-bottom: 10px;
}

.product-price-large {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.product-description-large {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--secondary-color);
}

.product-specs {
    margin-bottom: 40px;
}

.product-specs h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.product-specs ul {
    list-style: none;
}

.product-specs li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.product-specs li:before {
    content: "•";
    color: var(--accent-color);
    font-size: 1.2rem;
    position: absolute;
    left: 0;
}

.product-features {
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.feature {
    text-align: center;
    padding: 25px 15px;
    background-color: var(--light-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.feature h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.feature p {
    font-size: 0.9rem;
    margin-bottom: 0;
}

.product-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

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

.more-product-card {
    background-color: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.more-product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.more-product-image {
    height: 200px;
    overflow: hidden;
}

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

.more-product-info {
    padding: 25px;
}

/* 团队页面 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 40px;
}

.team-member {
    text-align: center;
}

.team-member-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 5px solid var(--light-color);
}

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

.team-member h3 {
    margin-bottom: 5px;
}

.team-member-role {
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 15px;
}

/* 博客页面 */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 40px;
}

.blog-card {
    background-color: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.blog-card-image {
    height: 200px;
    overflow: hidden;
}

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

.blog-card-content {
    padding: 25px;
}

.blog-card-date {
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.blog-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.blog-card-excerpt {
    margin-bottom: 20px;
    color: var(--gray-color);
}

/* 响应式设计 */
@media (max-width: 992px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2.2rem;
    }

    .hero .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .about-content,
    .contact-content {
        flex-direction: column;
    }

    .hero-image {
        height: 350px;
        width: 100%;
    }

    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .more-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .team-grid,
    .blog-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .product-grid,
    .service-grid,
    .more-products-grid,
    .team-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

    .product-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .product-actions .btn-primary,
    .product-actions .btn-secondary,
    .product-actions .btn-outline {
        width: 100%;
        text-align: center;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }

    .hero {
        padding-top: 120px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .section-title {
        font-size: 2rem;
    }
}