/* ===== 基础样式重置 ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 青绿色系 */
    --primary: #2D6A4F;
    --primary-light: #40916C;
    --primary-dark: #1B4332;
    
    /* 辅助色 */
    --secondary: #495057;
    --secondary-light: #6C757D;
    
    /* 点缀色 */
    --accent: #D4A574;
    --accent-light: #E8C9A4;
    
    /* 中性色 */
    --white: #FFFFFF;
    --off-white: #F8F9FA;
    --light-gray: #E9ECEF;
    --gray: #ADB5BD;
    --dark-gray: #343A40;
    --black: #212529;
    
    /* 功能色 */
    --success: #52B788;
    --warning: #F4A261;
    --error: #E76F51;
    
    /* 字体 */
    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
    --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 字号 */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 圆角 */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

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

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ===== 通用组件 ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

.btn-block {
    width: 100%;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
}

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

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 700;
    border-radius: var(--radius-md);
}

.logo-text {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--primary-dark);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
}

.nav-menu a {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width var(--transition-base);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--dark-gray);
    transition: all var(--transition-base);
}

/* ===== 语言选择器 ===== */
.lang-selector {
    position: relative;
    margin-left: var(--spacing-md);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--off-white);
    border: 1px solid var(--light-gray);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background: var(--white);
    border-color: var(--primary-light);
}

.lang-btn svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
}

.lang-current {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--dark-gray);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 1001;
    overflow: hidden;
}

.lang-selector.active .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown button {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    text-align: left;
    font-size: var(--text-sm);
    color: var(--dark-gray);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-dropdown button:hover {
    background: var(--off-white);
    color: var(--primary);
}

.lang-dropdown button.active {
    background: var(--primary);
    color: var(--white);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        #1B4332 0%, 
        #2D6A4F 25%, 
        #40916C 50%, 
        #52B788 75%, 
        #74C69D 100%
    );
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

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

.hero-title {
    font-family: var(--font-serif);
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-shadow: 2px 4px 8px rgba(0, 0, 0, 0.2);
}

.title-line.accent {
    color: var(--accent-light);
    font-size: clamp(3rem, 10vw, 6rem);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.5rem);
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
    letter-spacing: 0.2em;
}

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

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-2xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: var(--text-xs);
    letter-spacing: 0.1em;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--white);
    border-radius: var(--radius-full);
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--white);
    border-radius: var(--radius-full);
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

/* ===== 特色亮点 ===== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--off-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-lg);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--white);
}

.feature-card h3 {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    font-size: var(--text-sm);
    color: var(--secondary);
}

/* ===== 区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header.center {
    margin-bottom: var(--spacing-2xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--primary);
    color: var(--white);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

.section-desc {
    font-size: var(--text-lg);
    color: var(--secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 城市导览 ===== */
.cities-section {
    padding: var(--spacing-3xl) 0;
}

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

.city-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.city-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.city-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.city-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.city-icon {
    font-size: 4rem;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.city-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.city-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-dark);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
}

.city-content {
    padding: var(--spacing-lg);
}

.city-name {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-sm);
}

.city-desc {
    font-size: var(--text-sm);
    color: var(--secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.city-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.city-highlights span {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--off-white);
    color: var(--primary);
    font-size: var(--text-xs);
    border-radius: var(--radius-full);
}

.city-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.city-link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

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

.city-link:hover svg {
    transform: translateX(4px);
}

/* ===== 精选景点 ===== */
.attractions-section {
    padding: var(--spacing-3xl) 0;
    background: var(--off-white);
}

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

.attraction-main {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.attraction-image {
    height: 300px;
    overflow: hidden;
}

.attraction-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.attraction-visual {
    text-align: center;
    color: var(--white);
}

.visual-icon {
    font-size: 5rem;
    display: block;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.visual-text {
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.attraction-info {
    padding: var(--spacing-xl);
}

.attraction-info .attraction-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--accent);
    color: var(--white);
    font-size: var(--text-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.attraction-info h3 {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-md);
}

.attraction-info p {
    font-size: var(--text-base);
    color: var(--secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.attraction-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--text-sm);
    color: var(--secondary);
}

.attraction-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.attractions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.attraction-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.attraction-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.attraction-card-image {
    height: 120px;
    overflow: hidden;
}

.attraction-placeholder.small {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

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

.attraction-card-content h4 {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.attraction-card-content p {
    font-size: var(--text-sm);
    color: var(--secondary);
}

/* ===== 关于浙江 ===== */
.about-section {
    padding: var(--spacing-3xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about-text p {
    font-size: var(--text-base);
    color: var(--secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--secondary);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.visual-map {
    width: 200px;
    height: 250px;
    margin: 0 auto;
}

.zhejiang-map {
    width: 100%;
    height: 100%;
    color: var(--primary);
}

.map-outline {
    fill: rgba(45, 106, 79, 0.1);
    stroke: var(--primary);
}

.city-dot {
    fill: var(--primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.city-dot:hover {
    fill: var(--accent);
    r: 10;
}

.visual-caption {
    margin-top: var(--spacing-md);
    font-size: var(--text-sm);
    color: var(--secondary);
}

/* ===== 联系我们 ===== */
.contact-section {
    padding: var(--spacing-3xl) 0;
    background: var(--off-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--white);
}

.contact-text h4 {
    font-size: var(--text-base);
    color: var(--primary-dark);
    margin-bottom: var(--spacing-xs);
}

.contact-text p {
    font-size: var(--text-sm);
    color: var(--secondary);
}

.contact-form {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--dark-gray);
    background: var(--off-white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

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

/* ===== 页脚 ===== */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: var(--text-sm);
    opacity: 0.8;
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--white);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    margin-bottom: var(--spacing-lg);
}

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

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

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: var(--text-sm);
    opacity: 0.6;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .attractions-showcase {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .lang-selector {
        position: static;
        margin-left: 0;
        margin-top: var(--spacing-md);
    }
    
    .lang-dropdown {
        position: static;
        box-shadow: none;
        background: var(--off-white);
        border-radius: var(--radius-md);
        margin-top: var(--spacing-sm);
    }
    
    .lang-selector.active .lang-dropdown {
        transform: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .cities-grid {
        grid-template-columns: 1fr;
    }
    
    .attractions-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--off-white);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}