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

:root {
    /* 主色调 - 户外绿 */
    --primary: #2D5A3D;
    --primary-dark: #1E3D28;
    --primary-light: #4A7C59;
    
    /* 辅助色 - 活力橙 */
    --accent: #E67E22;
    --accent-hover: #D35400;
    
    /* 安全蓝 */
    --safe: #3498DB;
    
    /* 中性色 */
    --text-dark: #2C3E50;
    --text-light: #5D6D7E;
    --text-muted: #95A5A6;
    --bg-light: #F8F9FA;
    --bg-white: #FFFFFF;
    --border: #E5E8E8;
    
    /* 字体 */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 按钮样式 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: transparent;
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid white;
    cursor: pointer;
}

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

.btn-large {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* 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: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--primary);
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
    background: rgba(45,90,61,0.08);
}

.nav-menu .btn-primary {
    padding: 10px 20px;
    margin-left: 8px;
}

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

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* 首页 Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 72px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1a472a 0%, #2d5a3d 50%, #3d7a4d 100%);
    background-size: cover;
    background-position: center;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 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='0.03'%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");
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.5) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 40px 24px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.badge-icon {
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 500;
    margin-bottom: 12px;
    opacity: 0.95;
}

.hero-desc {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: white;
    opacity: 0.6;
    font-size: 0.8rem;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border: 2px solid white;
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    margin: 8px auto 0;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) rotate(45deg); }
    40% { transform: translateY(-10px) rotate(45deg); }
    60% { transform: translateY(-5px) rotate(45deg); }
}

/* 通用区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header.light {
    color: white;
}

.section-tag {
    display: inline-block;
    background: rgba(45,90,61,0.1);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header.light .section-tag {
    background: rgba(255,255,255,0.15);
    color: white;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

.section-header.light p {
    color: rgba(255,255,255,0.8);
}

/* 核心价值 */
.values {
    padding: 100px 0;
    background: var(--bg-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.value-card {
    background: white;
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

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

.value-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 24px;
}

.value-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

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

/* 关于我们 */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-content strong {
    color: var(--primary);
}

.credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
}

.credential-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
}

.credential-icon {
    font-size: 1.2rem;
}

.about-image {
    position: relative;
}

.image-placeholder {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 4rem;
}

.image-placeholder p {
    font-size: 1rem;
    margin-top: 16px;
    opacity: 0.8;
}

/* 安全保障 */
.safety {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
}

.safety-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.safety-rule {
    background: rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(10px);
}

.rule-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 16px;
}

.rule-content h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
}

.rule-content ul {
    list-style: none;
}

.rule-content li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    opacity: 0.9;
}

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

.safety-note {
    text-align: center;
    background: rgba(255,255,255,0.1);
    padding: 24px;
    border-radius: var(--radius-md);
    font-size: 1.1rem;
}

.safety-note strong {
    color: var(--accent);
}

/* 活动线路 */
.routes {
    padding: 100px 0;
    background: var(--bg-white);
}

.routes-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 28px;
    background: var(--bg-light);
    border: 2px solid transparent;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    background: var(--border);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.routes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.route-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.route-image {
    position: relative;
    aspect-ratio: 16/10;
}

.route-image .image-placeholder {
    border-radius: 0;
    aspect-ratio: 16/10;
    font-size: 3rem;
}

.route-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.route-info {
    padding: 24px;
}

.route-info h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.route-info p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.route-meta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.route-meta span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 客户见证 */
.testimonials {
    padding: 100px 0;
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
}

.testimonial-card {
    background: white;
    padding: 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    box-shadow: var(--shadow-md);
}

.testimonial-rating {
    color: #F1C40F;
    font-size: 1.2rem;
    letter-spacing: 4px;
    margin-bottom: 16px;
}

.testimonial-text {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--text-dark);
}

.author-tag {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.contact-content h2 {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    margin-bottom: 12px;
}

.contact-content > p {
    color: var(--text-light);
    margin-bottom: 32px;
}

.contact-benefits {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.1rem;
}

.benefit-icon {
    font-size: 1.5rem;
}

.contact-qr {
    text-align: center;
}

.qr-placeholder {
    background: var(--bg-light);
    border: 3px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    margin-bottom: 16px;
}

.qr-placeholder span {
    font-size: 4rem;
    display: block;
    margin-bottom: 16px;
}

.qr-placeholder p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.qr-placeholder small {
    color: var(--text-muted);
}

.qr-note {
    color: var(--accent);
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 64px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.footer-logo .logo-icon {
    font-size: 1.8rem;
}

.footer-logo .logo-text {
    font-size: 1.4rem;
    font-weight: 700;
}

.footer-slogan {
    opacity: 0.8;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social a {
    font-size: 1.5rem;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-social a:hover {
    opacity: 1;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-contact p {
    margin-bottom: 12px;
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    opacity: 0.6;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-image {
        order: -1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .safety-content {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons a {
        width: 100%;
    }
    
    .routes-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 200px;
    }
}