/* ===== CSS Variables ===== */
:root {
    --primary-color: #1a5f7a;
    --secondary-color: #57c5b6;
    --accent-color: #159895;
    --dark-color: #0d2c3e;
    --light-color: #f8fbfb;
    --text-color: #2c3e50;
    --text-light: #5a6c7d;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background: var(--light-color);
}

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

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-family: 'Noto Serif SC', serif;
    font-weight: 600;
    line-height: 1.3;
}

/* ===== Navigation ===== */
.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);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

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

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

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

/* ===== Hero Section ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #1a5f7a 0%, #57c5b6 50%, #159895 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.05) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite;
}

@keyframes heroGlow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.hero-overlay {
    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 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}

.hero-content {
    position: relative;
    z-index: 10;
    color: var(--white);
    padding: 0 24px;
}

.hero-title {
    font-size: clamp(48px, 10vw, 96px);
    font-weight: 700;
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    animation: heroSlideUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 28px);
    font-weight: 400;
    margin-bottom: 24px;
    opacity: 0.95;
    animation: heroSlideUp 1s ease-out 0.2s both;
}

.hero-desc {
    font-size: 16px;
    margin-bottom: 40px;
    opacity: 0.85;
    animation: heroSlideUp 1s ease-out 0.4s both;
}

.hero-btn {
    display: inline-block;
    padding: 16px 48px;
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    animation: heroSlideUp 1s ease-out 0.6s both;
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--white);
    font-size: 14px;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
}

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

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 5vw, 42px);
    color: var(--dark-color);
}

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

.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.intro-card {
    background: var(--light-color);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0,0,0,0.05);
}

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

.card-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.intro-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.intro-card p {
    color: var(--text-color);
    margin-bottom: 8px;
}

.intro-card strong {
    color: var(--accent-color);
    font-size: 24px;
}

.card-coord {
    font-size: 13px;
    color: var(--text-light);
}

.intro-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 16px;
    color: var(--white);
}

.flow-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.flow-dot {
    width: 12px;
    height: 12px;
    background: var(--white);
    border-radius: 50%;
    opacity: 0.8;
}

.flow-item.highlight .flow-dot {
    width: 16px;
    height: 16px;
    background: #ffd700;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
}

.flow-arrow {
    font-size: 20px;
    opacity: 0.6;
}

/* ===== History Section ===== */
.history-section {
    background: linear-gradient(180deg, var(--light-color) 0%, var(--white) 100%);
}

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

.history-lead {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 32px;
    line-height: 1.8;
}

.history-list {
    list-style: none;
}

.history-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
}

.history-year {
    flex-shrink: 0;
    width: 70px;
    padding: 8px 12px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    text-align: center;
}

.history-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.history-item p {
    color: var(--text-light);
    font-size: 15px;
}

.history-quote blockquote {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 40px;
    border-radius: 20px;
    color: var(--white);
    font-family: 'Noto Serif SC', serif;
    font-size: 24px;
    line-height: 1.6;
    position: relative;
}

.history-quote blockquote::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 80px;
    opacity: 0.3;
    font-family: Georgia, serif;
}

.history-quote cite {
    display: block;
    margin-top: 20px;
    font-size: 14px;
    opacity: 0.8;
    font-style: normal;
}

@media (max-width: 768px) {
    .history-content {
        grid-template-columns: 1fr;
    }
}

/* ===== Tributaries Section ===== */
.tributaries-section {
    background: var(--white);
}

.tributaries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.tributary-card {
    background: var(--light-color);
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.tributary-card:hover {
    border-color: var(--secondary-color);
    transform: scale(1.02);
}

.tributary-card h3 {
    font-size: 18px;
    color: var(--dark-color);
    margin-bottom: 8px;
}

.tributary-card p {
    font-size: 14px;
    color: var(--text-light);
}

.tributaries-note {
    text-align: center;
    color: var(--accent-color);
    font-weight: 500;
}

/* ===== Ecology Section ===== */
.ecology-section {
    background: linear-gradient(180deg, var(--light-color) 0%, #e8f4f4 100%);
}

.ecology-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.timeline-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.timeline-marker {
    flex-shrink: 0;
    width: 100px;
    padding: 12px 16px;
    background: var(--white);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.timeline-item.highlight .timeline-marker {
    background: var(--accent-color);
    color: var(--white);
}

.timeline-content {
    flex: 1;
    padding: 20px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.timeline-content h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.timeline-content p {
    color: var(--text-light);
    font-size: 15px;
}

.ecology-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: 'Noto Serif SC', serif;
}

.stat-label {
    font-size: 16px;
    color: var(--text-light);
}

/* ===== Gallery Section ===== */
.gallery-section {
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 200px);
    gap: 16px;
}

.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    background: var(--light-color);
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #e8f4f4 0%, #d4ecec 100%);
    color: var(--text-light);
    font-size: 14px;
    transition: var(--transition);
}

.gallery-item:hover .gallery-placeholder {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
}

.placeholder-icon {
    font-size: 36px;
}

.gallery-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-light);
    margin-top: 20px;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .gallery-item.large {
        grid-column: span 1;
        grid-row: span 1;
    }
}

/* ===== Footer ===== */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    margin-bottom: 16px;
}

.footer-logo {
    font-size: 36px;
}

.footer-desc {
    opacity: 0.7;
    margin-bottom: 24px;
}

.footer-copyright {
    font-size: 14px;
    opacity: 0.5;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .intro-flow {
        flex-direction: column;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .ecology-stats {
        gap: 40px;
    }
    
    .stat-number {
        font-size: 36px;
    }
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Page Header (Sub-pages) ===== */
.page-header {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: clamp(36px, 6vw, 56px);
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.history-page-header { background: linear-gradient(135deg, #8B4513 0%, #D2691E 100%); }
.spots-page-header { background: linear-gradient(135deg, #228B22 0%, #32CD32 100%); }
.ecology-page-header { background: linear-gradient(135deg, #006400 0%, #228B22 100%); }
.culture-page-header { background: linear-gradient(135deg, #4B0082 0%, #9370DB 100%); }

/* ===== Map Page ===== */
.map-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    align-items: start;
}

.map-visual {
    background: linear-gradient(180deg, #e8f4f4 0%, #d4ecec 100%);
    border-radius: 20px;
    padding: 40px;
    position: relative;
    min-height: 600px;
}

.river-path {
    position: relative;
    height: 100%;
    min-height: 500px;
}

.river-line {
    position: absolute;
    left: 50%;
    top: 5%;
    bottom: 5%;
    width: 4px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    border-radius: 2px;
    transform: translateX(-50%);
}

.river-source, .river-mouth {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.river-source { top: 0; }
.river-mouth { bottom: 0; }

.river-source .marker, .river-mouth .marker {
    font-size: 24px;
    color: var(--accent-color);
}

.river-source .label, .river-mouth .label {
    background: var(--white);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.river-station {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.river-station .marker {
    width: 16px;
    height: 16px;
    background: var(--secondary-color);
    border-radius: 50%;
    border: 3px solid var(--white);
    box-shadow: var(--shadow-sm);
}

.river-station .label {
    background: var(--white);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 13px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.map-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.info-card {
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.info-card h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--dark-color);
}

.info-card ul {
    list-style: none;
}

.info-card li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.info-card li:last-child {
    border-bottom: none;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table td {
    padding: 10px;
    border-bottom: 1px solid #eee;
    font-size: 14px;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table td:first-child {
    color: var(--text-light);
}

.data-table td:not(:first-child) {
    font-weight: 600;
    color: var(--accent-color);
}

/* Tributary Map */
.tributary-map-section {
    background: var(--white);
}

.tributary-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.tributary-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--light-color);
    padding: 20px 24px;
    border-radius: 12px;
}

.trib-marker {
    width: 4px;
    height: 60px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.trib-marker.left { background: var(--primary-color); }
.trib-marker.right { background: var(--accent-color); }

.trib-info h4 {
    font-size: 18px;
    margin-bottom: 4px;
    color: var(--dark-color);
}

.trib-info p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 4px;
}

.trib-length {
    font-size: 12px;
    color: var(--accent-color);
    font-weight: 500;
}

/* Monitoring */
.monitoring-section {
    background: linear-gradient(180deg, var(--light-color) 0%, #e8f4f4 100%);
}

.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.monitor-card {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.monitor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

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

.monitor-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.monitor-status.normal {
    background: #e8f5e9;
    color: #2e7d32;
}

.monitor-data {
    display: flex;
    justify-content: space-between;
}

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

.data-label {
    display: block;
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.data-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
}

.data-value.good {
    color: #2e7d32;
}

.monitor-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-light);
    margin-top: 24px;
}

/* ===== History Page ===== */
.timeline-vertical {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline-vertical::before {
    content: '';
    position: absolute;
    left: 120px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
}

.timeline-node {
    display: flex;
    gap: 40px;
    padding: 24px 0;
    position: relative;
}

.node-year {
    flex-shrink: 0;
    width: 100px;
    padding: 12px;
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.timeline-vertical::before {
    left: 135px;
}

.timeline-node {
    padding-left: 20px;
}

.node-content {
    flex: 1;
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.node-image {
    font-size: 40px;
    margin-bottom: 12px;
}

.node-content h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.node-content p {
    color: var(--text-color);
    margin-bottom: 12px;
}

.node-quote {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
    padding: 16px 20px;
    border-radius: 12px;
    font-size: 16px;
    font-family: 'Noto Serif SC', serif;
    margin-top: 16px;
}

.node-quote cite {
    display: block;
    font-size: 13px;
    margin-top: 8px;
    opacity: 0.8;
    font-style: normal;
}

.node-highlight {
    background: var(--light-color);
    padding: 16px 20px;
    border-radius: 12px;
    font-size: 15px;
    border-left: 4px solid var(--accent-color);
}

/* Figures */
.figures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.figure-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.figure-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 20px;
}

.figure-card h3 {
    font-size: 22px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.figure-title {
    color: var(--accent-color);
    font-size: 14px;
    margin-bottom: 12px;
}

.figure-desc {
    color: var(--text-light);
    font-size: 14px;
}

/* Heritage */
.heritage-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.heritage-item {
    display: flex;
    gap: 24px;
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.heritage-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.heritage-info h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.heritage-info p {
    color: var(--text-color);
    margin-bottom: 12px;
}

.heritage-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--light-color);
    color: var(--accent-color);
    font-size: 12px;
    border-radius: 20px;
    font-weight: 500;
}

/* ===== Spots Page ===== */
.route-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.route-card {
    background: var(--white);
    padding: 28px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: var(--transition);
}

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

.route-card.featured {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--white);
}

.route-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    padding: 6px 16px;
    background: var(--accent-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.route-card.featured .route-badge {
    background: #ffd700;
    color: var(--dark-color);
}

.route-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.route-stops {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.stop {
    padding: 6px 12px;
    background: var(--light-color);
    border-radius: 8px;
    font-size: 13px;
}

.route-card.featured .stop {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.arrow {
    color: var(--text-light);
    font-size: 12px;
}

.route-card.featured .arrow {
    color: rgba(255,255,255,0.7);
}

.route-desc {
    font-size: 14px;
    margin-bottom: 16px;
    color: var(--text-light);
}

.route-card.featured .route-desc {
    color: rgba(255,255,255,0.9);
}

.route-tags {
    display: flex;
    gap: 8px;
}

.tag {
    padding: 4px 12px;
    background: var(--secondary-color);
    color: var(--white);
    font-size: 12px;
    border-radius: 20px;
}

/* Spots List */
.spots-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.spot-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.spot-item.reverse {
    grid-template-columns: 1fr 300px;
}

.spot-item.reverse .spot-image {
    order: 2;
}

.spot-image {
    height: 100%;
    min-height: 200px;
}

.spot-placeholder {
    width: 100%;
    height: 100%;
    min-height: 200px;
    background: linear-gradient(135deg, #e8f4f4, #d4ecec);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
}

.spot-info {
    padding: 28px;
}

.spot-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.spot-info h3 {
    font-size: 22px;
    color: var(--dark-color);
}

.spot-rating {
    color: #f5c518;
    font-size: 14px;
}

.spot-location {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 12px;
}

.spot-desc {
    color: var(--text-color);
    margin-bottom: 16px;
    line-height: 1.8;
}

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

.meta-item {
    font-size: 13px;
    color: var(--text-light);
}

/* Season */
.season-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.season-card {
    background: var(--white);
    padding: 28px;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.season-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.season-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.season-card p {
    color: var(--text-light);
    font-size: 14px;
}

.season-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    background: #ffd700;
    color: var(--dark-color);
    font-size: 11px;
    border-radius: 10px;
    font-weight: 600;
}

/* ===== Ecology Page ===== */
.governance-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.gov-phase {
    display: flex;
    gap: 24px;
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.gov-phase.current {
    border: 2px solid var(--accent-color);
}

.phase-period {
    flex-shrink: 0;
    width: 120px;
    padding: 12px;
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    text-align: center;
}

.gov-phase.current .phase-period {
    background: var(--accent-color);
}

.phase-title {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.phase-content p {
    color: var(--text-color);
    margin-bottom: 12px;
}

.phase-data {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.data-tag {
    padding: 4px 12px;
    background: var(--light-color);
    color: var(--text-light);
    font-size: 12px;
    border-radius: 20px;
}

.data-tag.bad {
    background: #ffebee;
    color: #c62828;
}

.data-tag.good {
    background: #e8f5e9;
    color: #2e7d32;
}

.phase-highlight {
    background: var(--light-color);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-color);
}

/* Achievements */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.achievement-card {
    background: var(--white);
    padding: 32px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.achievement-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.achievement-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-color);
    font-family: 'Noto Serif SC', serif;
    margin-bottom: 8px;
}

.achievement-label {
    font-size: 16px;
    color: var(--dark-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.achievement-card p {
    font-size: 14px;
    color: var(--text-light);
}

/* Measures */
.measures-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.measure-item {
    display: flex;
    gap: 24px;
    background: var(--white);
    padding: 28px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.measure-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.measure-content h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.measure-content > p {
    color: var(--text-color);
    margin-bottom: 16px;
}

.measure-details {
    list-style: none;
}

.measure-details li {
    padding: 6px 0;
    color: var(--text-light);
    font-size: 14px;
    padding-left: 20px;
    position: relative;
}

.measure-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* Water Quality */
.quality-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.quality-before, .quality-after {
    text-align: center;
}

.quality-before h3, .quality-after h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--dark-color);
}

.quality-level {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    font-family: 'Noto Serif SC', serif;
}

.quality-level.bad {
    color: #c62828;
}

.quality-level.good {
    color: #2e7d32;
}

.quality-indicators {
    list-style: none;
    text-align: left;
}

.quality-indicators li {
    padding: 8px 0;
    font-size: 15px;
    color: var(--text-color);
}

.quality-arrow {
    font-size: 48px;
    color: var(--accent-color);
}

.quality-note {
    margin-top: 32px;
    padding: 20px;
    background: var(--light-color);
    border-radius: 12px;
    font-size: 14px;
    color: var(--text-light);
}

.quality-note p {
    margin-bottom: 8px;
}

.quality-note p:last-child {
    margin-bottom: 0;
}

/* Future */
.future-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.future-vision, .future-actions {
    background: var(--white);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.future-vision h3, .future-actions h3 {
    font-size: 20px;
    margin-bottom: 16px;
    color: var(--dark-color);
}

.future-actions > p {
    color: var(--text-color);
    margin-bottom: 16px;
}

.future-vision ul, .future-actions ul {
    list-style: none;
}

.future-vision li, .future-actions li {
    padding: 8px 0;
    color: var(--text-color);
    padding-left: 24px;
    position: relative;
}

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

/* ===== Culture Page ===== */
.folk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.folk-card {
    background: var(--white);
    padding: 28px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.folk-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.folk-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.folk-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* Food */
.food-section {
    background: linear-gradient(180deg, var(--light-color) 0%, #fff 100%);
}

.section-subtitle {
    color: var(--text-light);
    font-size: 16px;
    margin-top: 8px;
}

.food-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.food-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.food-image {
    height: 140px;
    background: linear-gradient(135deg, #fff5e6, #ffe4c4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
}

.food-info {
    padding: 20px;
}

.food-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.food-desc {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 12px;
}

.food-tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--light-color);
    color: var(--accent-color);
    font-size: 12px;
    border-radius: 20px;
}

.food-tag.hot {
    background: #ffebee;
    color: #c62828;
}

/* Products */
.product-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.product-item {
    display: flex;
    gap: 24px;
    background: var(--white);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

.product-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.product-detail h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.product-detail p {
    color: var(--text-light);
    font-size: 14px;
}

/* Festivals */
.festival-timeline {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.festival-item {
    display: flex;
    gap: 24px;
    background: var(--white);
    padding: 20px 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.festival-date {
    flex-shrink: 0;
    width: 80px;
    padding: 8px;
    background: var(--primary-color);
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    text-align: center;
}

.festival-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.festival-content p {
    color: var(--text-light);
    font-size: 14px;
}

/* Heritage2 */
.heritage2-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.heritage2-card {
    background: var(--white);
    padding: 28px;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.heritage2-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: #ffd700;
    color: var(--dark-color);
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
}

.heritage2-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--dark-color);
}

.heritage2-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .map-container {
        grid-template-columns: 1fr;
    }
    
    .spot-item, .spot-item.reverse {
        grid-template-columns: 1fr;
    }
    
    .spot-item.reverse .spot-image {
        order: 0;
    }
    
    .quality-comparison {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .quality-arrow {
        transform: rotate(90deg);
    }
    
    .future-content {
        grid-template-columns: 1fr;
    }
    
    .timeline-vertical::before {
        left: 60px;
    }
    
    .timeline-node {
        flex-direction: column;
        gap: 12px;
        padding-left: 0;
    }
    
    .node-year {
        width: fit-content;
    }
}