* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4a90e2;
    --secondary-color: #50c878;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header & Navigation */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    padding: 1rem 0;
}

.nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 6rem 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-description {
    font-size: 1.2rem;
    line-height: 2;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-description p {
    margin: 0.5rem 0;
}

.hero-image {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.2;
}

.running-icon {
    font-size: 15rem;
    animation: run 3s ease-in-out infinite;
}

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

@keyframes run {
    0%, 100% {
        transform: translateX(0) rotate(0deg);
    }
    50% {
        transform: translateX(20px) rotate(5deg);
    }
}

/* About Section */
.about {
    padding: 5rem 2rem;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 1rem auto;
    border-radius: 2px;
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.about-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.about-card p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.card-description {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 400;
    line-height: 1.8;
}

/* Location Section */
.location {
    padding: 5rem 2rem;
    background: var(--white);
}

.location-content {
    max-width: 900px;
    margin: 0 auto;
}

.location-info {
    text-align: center;
}

.location-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.location-info > p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.location-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    color: var(--text-color);
}

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

/* Notice Section */
.notice {
    padding: 4rem 2rem;
    background: var(--bg-light);
}

.notice-box {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    border-left: 4px solid var(--secondary-color);
}

.notice-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.notice-box h3 {
    font-size: 1.8rem;
    color: var(--text-color);
    margin-bottom: 1rem;
}

.notice-box p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: var(--white);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-image {
        display: none;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .location-features {
        flex-direction: column;
        gap: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 1rem;
        min-height: 60vh;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .about-card,
    .notice-box {
        padding: 2rem 1.5rem;
    }
}

/* Privacy Page Styles */
.privacy-hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--white);
    padding: 4rem 2rem 3rem;
    text-align: center;
}

.privacy-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.privacy-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

.privacy-content {
    padding: 3rem 2rem;
    background: var(--bg-light);
    min-height: 60vh;
}

.privacy-wrapper {
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.privacy-section {
    margin-bottom: 3rem;
}

.privacy-section:last-child {
    margin-bottom: 0;
}

.privacy-section h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.privacy-section h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.privacy-section p {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.privacy-section ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.privacy-section li {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.privacy-section li strong {
    color: var(--text-color);
    font-weight: 600;
}

.contact-info {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.contact-info p:last-child {
    margin-bottom: 0;
}

.privacy-footer-note {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    margin-top: 3rem;
    border-left: 4px solid var(--secondary-color);
}

.privacy-footer-note p {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.privacy-footer-note p:last-child {
    margin-bottom: 0;
    color: var(--text-light);
    font-size: 1rem;
}

@media (max-width: 768px) {
    .privacy-title {
        font-size: 2rem;
    }

    .privacy-wrapper {
        padding: 2rem 1.5rem;
    }

    .privacy-section h2 {
        font-size: 1.5rem;
    }

    .privacy-section h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .privacy-hero {
        padding: 3rem 1rem 2rem;
    }

    .privacy-title {
        font-size: 1.8rem;
    }

    .privacy-content {
        padding: 2rem 1rem;
    }

    .privacy-wrapper {
        padding: 1.5rem 1rem;
    }

    .privacy-section {
        margin-bottom: 2rem;
    }

    .privacy-section ul {
        margin-left: 1.5rem;
    }
}