/* ============================================
   羞羞漫画 - 样式表
   响应式设计，移动端优先
   粉色/紫色系风格
   ============================================ */

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 粉色/紫色系 */
    --primary-color: #ff6b9d;
    --primary-dark: #e91e63;
    --primary-light: #ff8fab;
    --secondary-color: #c44569;
    --accent-color: #f8b500;
    --accent-light: #ffd93d;
    
    /* 背景色 */
    --bg-dark: #1a1a2e;
    --bg-darker: #0f0f1e;
    --bg-card: #16213e;
    --bg-light: #0f3460;
    --bg-white: #ffffff;
    --bg-pink: #fff0f5;
    
    /* 文字颜色 */
    --text-light: #f1f5f9;
    --text-gray: #cbd5e1;
    --text-dark: #64748b;
    --text-darker: #1e293b;
    
    /* 边框 */
    --border-color: #334155;
    --border-light: #475569;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 字体 */
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    
    /* 过渡 */
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-light);
    line-height: 1.6;
    background: var(--bg-dark);
    overflow-x: hidden;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(255, 107, 157, 0.3);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--text-light);
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: var(--spacing-xs) 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transition: var(--transition);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.6);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

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

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

.btn-small {
    padding: 0.5rem 1.5rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
    display: block;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(255, 107, 157, 0.7) 50%, rgba(196, 69, 105, 0.7) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    padding: var(--spacing-md);
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    background: linear-gradient(135deg, #fff, var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-light);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-gray);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* 动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
}

/* Intro Section */
.intro-section {
    background: var(--bg-darker);
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.intro-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(255, 107, 157, 0.3);
    border: 2px solid var(--border-color);
}

.intro-text h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.intro-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-gray);
    line-height: 1.8;
}

/* Products Section */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.product-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 50px rgba(255, 107, 157, 0.4);
    border-color: var(--primary-color);
}

.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.product-content {
    padding: var(--spacing-md);
}

.product-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.product-content p {
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.product-features {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.product-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 1.5rem;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.section-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* News Section */
.news-section {
    background: var(--bg-darker);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.news-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(255, 107, 157, 0.4);
    border-color: var(--primary-color);
}

.news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.news-content {
    padding: var(--spacing-md);
}

.news-date {
    display: block;
    color: var(--text-dark);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.news-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.news-content p {
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.news-link {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-color);
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--accent-light);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: 70px;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
    font-size: 1.3rem;
    opacity: 0.9;
}

/* Products Page */
.filter-section {
    background: var(--bg-darker);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-wrapper {
    text-align: center;
}

.filter-wrapper h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}

.filter-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    border: 2px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-gray);
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.products-page-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-dark);
}

.products-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.product-page-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
    display: none;
    border: 1px solid var(--border-color);
}

.product-page-card.active {
    display: block;
}

.product-page-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(255, 107, 157, 0.4);
    border-color: var(--primary-color);
}

.product-page-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.product-page-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.product-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, var(--accent-color), var(--primary-color));
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.product-page-content {
    padding: var(--spacing-md);
}

.product-page-content h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.product-description {
    color: var(--text-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.product-specs {
    list-style: none;
    margin-bottom: var(--spacing-sm);
}

.product-specs li {
    padding: 0.3rem 0;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* About Page */
.history-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-dark);
}

.history-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 75px;
    top: 0;
    bottom: -var(--spacing-xl);
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: right;
    padding-right: var(--spacing-md);
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.timeline-content p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.timeline-image {
    margin-top: var(--spacing-sm);
}

.timeline-image img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.team-section {
    background: var(--bg-darker);
    padding: var(--spacing-xl) 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.team-card {
    background: var(--bg-card);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(255, 107, 157, 0.4);
    border-color: var(--primary-color);
}

.team-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

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

.team-content {
    padding: var(--spacing-md);
}

.team-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.team-role {
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.team-description {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.7;
}

.values-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-dark);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.value-card {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(255, 107, 157, 0.3);
}

.value-icon {
    margin-bottom: var(--spacing-sm);
}

.value-icon img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
}

.value-card h3 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.value-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

/* Contact Page */
.contact-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-dark);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

.contact-form-wrapper h2,
.contact-info-wrapper h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.form-description {
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.contact-form {
    background: var(--bg-card);
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-weight: 500;
}

.required {
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-light);
    color: var(--text-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

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

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: 8px;
    display: none;
}

.form-message.success {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    display: block;
    border: 1px solid #4ade80;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    display: block;
    border: 1px solid #f87171;
}

.contact-info-card {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.contact-icon img {
    width: 40px;
    height: 40px;
}

.contact-details h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--text-gray);
    margin-bottom: 0.3rem;
}

.contact-note {
    font-size: 0.9rem;
    color: var(--text-dark);
    font-style: italic;
}

.map-container {
    margin-top: var(--spacing-md);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.map-container img {
    width: 100%;
    height: auto;
    display: block;
}

/* FAQ Section */
.faq-section {
    background: var(--bg-darker);
    padding: var(--spacing-xl) 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border-radius: 15px;
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin: 0;
}

.faq-toggle {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 300;
    transition: var(--transition);
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--text-gray);
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    color: var(--text-light);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

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

.footer-column h4 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-column p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

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

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-links a {
    display: inline-block;
    transition: var(--transition);
}

.social-links a img {
    width: 24px;
    height: 24px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-dark);
}

/* 响应式设计 - 移动端优先 */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-card);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
        transition: var(--transition);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .intro-content {
        grid-template-columns: 1fr;
    }
    
    .products-grid,
    .news-grid,
    .products-page-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
    }
    
    .timeline-item::before {
        display: none;
    }
    
    .timeline-year {
        text-align: left;
        margin-bottom: var(--spacing-sm);
    }
    
    .team-grid,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-buttons {
        justify-content: flex-start;
    }
    
    .filter-btn {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
}