/* 全椒全昊生态集团官网样式 */

/* CSS Variables */
:root {
    --primary-color: #1a5f2a;
    --secondary-color: #2d8a3e;
    --accent-color: #f5a623;
    --dark-bg: #0d1b0f;
    --light-bg: #f8faf8;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1a5f2a 0%, #2d8a3e 100%);
    --gradient-accent: linear-gradient(135deg, #f5a623 0%, #ff6b35 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 27, 15, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(13, 27, 15, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

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

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.logo-text {
    color: var(--white);
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 35px;
}

.nav-links a {
    color: var(--white);
    font-size: 15px;
    position: relative;
    padding: 5px 0;
    transition: color 0.3s;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

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

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 600px;
    background: linear-gradient(135deg, rgba(26, 95, 42, 0.9) 0%, rgba(13, 27, 15, 0.95) 100%),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 900"><defs><linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%" style="stop-color:%231a5f2a"/><stop offset="100%" style="stop-color:%230d1b0f"/></linearGradient></defs><rect fill="url(%23g)" width="1440" height="900"/></svg>');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::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="1" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 0 20px;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    color: var(--accent-color);
    font-size: 18px;
    letter-spacing: 8px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    color: var(--white);
    font-size: 56px;
    font-weight: bold;
    letter-spacing: 15px;
    margin-bottom: 25px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-slogan {
    color: rgba(255, 255, 255, 0.9);
    font-size: 22px;
    letter-spacing: 5px;
    margin-bottom: 40px;
}

.hero-cta {
    display: inline-flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    padding: 15px 40px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(245, 166, 35, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 30px rgba(245, 166, 35, 0.5);
}

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

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 26px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    position: relative;
}

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

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

@keyframes scroll {
    0% { opacity: 1; }
    100% { opacity: 0; transform: translateX(-50%) translateY(15px); }
}

/* Section Styles */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    color: var(--accent-color);
    font-size: 14px;
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.section-title {
    font-size: 40px;
    color: var(--text-dark);
    margin-bottom: 15px;
    letter-spacing: 5px;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    background: var(--light-bg);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: 20px;
    bottom: 20px;
    border: 3px solid var(--primary-color);
    border-radius: 20px;
    z-index: -1;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
}

.about-content h3 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
}

.feature-text {
    font-size: 14px;
    color: var(--text-dark);
    font-weight: 500;
}

/* Business Section */
.business-section {
    background: var(--dark-bg);
    color: var(--white);
}

.business-section .section-title {
    color: var(--white);
}

.business-section .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.business-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.business-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

.business-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 36px;
}

.business-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--accent-color);
}

.business-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
}

/* Tourism Section */
.tourism-section {
    background: var(--white);
}

.tourism-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.tourism-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    height: 300px;
    cursor: pointer;
}

.tourism-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.tourism-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px 20px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: var(--white);
}

.tourism-overlay h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.tourism-overlay p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.8);
}

/* Food Section */
.food-section {
    background: linear-gradient(135deg, #f8faf8 0%, #e8f5e9 100%);
}

.food-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.food-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.food-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.12);
}

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

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

.food-content {
    padding: 25px;
}

.food-tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 12px;
}

.food-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.food-content p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary);
    padding: 80px 0;
    text-align: center;
    color: var(--white);
}

.cta-section h2 {
    font-size: 36px;
    margin-bottom: 15px;
    letter-spacing: 3px;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

.cta-section .btn-primary:hover {
    background: var(--accent-color);
    color: var(--white);
}

/* Contact Section */
.contact-section {
    background: var(--dark-bg);
    color: var(--white);
}

.contact-section .section-title {
    color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: var(--accent-color);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-text h4 {
    font-size: 16px;
    margin-bottom: 5px;
}

.contact-text p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--white);
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.15);
}

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

.form-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-accent);
    border: none;
    border-radius: 10px;
    color: var(--white);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.form-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(245, 166, 35, 0.3);
}

/* Footer */
.footer {
    background: #0a150b;
    padding: 60px 0 30px;
    color: var(--white);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-about .logo {
    margin-bottom: 20px;
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.8;
}

.footer-links h4 {
    font-size: 16px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

/* Page Header */
.page-header {
    height: 400px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.page-header::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="1" fill="rgba(255,255,255,0.03)"/></svg>');
    background-size: 50px 50px;
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 48px;
    letter-spacing: 10px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    letter-spacing: 3px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 42px;
    }
    
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tourism-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .food-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(13, 27, 15, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 32px;
        letter-spacing: 5px;
    }
    
    .hero-slogan {
        font-size: 16px;
        letter-spacing: 2px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .business-grid,
    .food-grid {
        grid-template-columns: 1fr;
    }
    
    .tourism-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-about .logo {
        justify-content: center;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}