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

/* 防止字体抖动和布局跳动 */
* {
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

.bold-text {
    font-weight: 900 !important;
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
}

strong {
    font-weight: 800;
    color: #ff6b35;
}

/* Header */
.header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    padding: 15px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

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

.logo h1 {
    color: #fff;
    font-size: 2rem;
    font-weight: 900;
    font-family: 'Montserrat', sans-serif;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.logo span {
    color: #ff6b35;
    font-size: 0.9rem;
    font-weight: 600;
    display: block;
    margin-top: -5px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
}

.nav a:hover {
    color: #ff6b35;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #ff6b35;
    transition: width 0.3s ease;
}

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

.cta-btn {
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0f3460 0%, #16213e 50%, #1a1a2e 100%);
    padding: 120px 0 80px;
    color: white;
    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"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.03"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.03"/><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.03"/><circle cx="20" cy="60" r="1" fill="%23ffffff" opacity="0.03"/><circle cx="80" cy="40" r="1" fill="%23ffffff" opacity="0.03"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
}

.highlight {
    color: #ff6b35;
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.5;
}

.hero-benefits {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1.1rem;
}

.benefit-item .icon {
    font-size: 1.5rem;
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    padding: 8px;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-cta {
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: white;
    padding: 20px 40px;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4);
    width: fit-content;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.6);
}

.hero-cta .arrow {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.hero-cta:hover .arrow {
    transform: translateX(5px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-placeholder {
    width: 350px;
    height: 350px;
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    box-shadow: 0 20px 40px rgba(255, 107, 53, 0.3);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* About Section */
.about {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 60px;
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
    color: #1a1a2e;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 60px;
    align-items: start;
}

.expertise-item {
    margin-bottom: 40px;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.expertise-item:hover {
    transform: translateY(-5px);
}

.expertise-item h3 {
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.expertise-item p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #666;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 25px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(26, 26, 46, 0.3);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    color: #ff6b35;
    font-family: 'Montserrat', sans-serif;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 600;
    opacity: 0.9;
}

/* Community Benefits Section */
.community-benefits {
    padding: 100px 0;
    background: white;
}

.benefit-module {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
    padding: 40px;
    border-radius: 20px;
    background: #f8f9fa;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.benefit-module.right-image {
    grid-template-columns: 1fr 1fr;
}

.benefit-module.right-image .module-content {
    order: 1;
}

.benefit-module.right-image .module-image {
    order: 2;
}

.module-content h3 {
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 25px;
    color: #1a1a2e;
    line-height: 1.2;
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
}

.module-content ul {
    list-style: none;
    margin-bottom: 30px;
}

.module-content li {
    padding: 12px 0;
    font-size: 1.1rem;
    position: relative;
    padding-left: 25px;
}

.module-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #ff6b35;
    font-weight: bold;
    font-size: 1.2rem;
}

.module-cta {
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.4);
}

.module-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 107, 53, 0.6);
}

.module-image .image-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: 0 15px 30px rgba(26, 26, 46, 0.3);
    overflow: hidden;
}

.module-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.module-image:hover img {
    transform: scale(1.05);
}

/* Activity Rules Section */
.activity-rules {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.rule-item {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    border-top: 4px solid #ff6b35;
}

.rule-item:hover {
    transform: translateY(-5px);
}

.rule-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

.rule-item h3 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.rule-item p {
    font-size: 1rem;
    line-height: 1.6;
    color: #666;
}

/* Final CTA Section */
.final-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    font-family: 'Montserrat', 'Noto Sans KR', sans-serif;
}

.cta-content p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.final-cta-btn {
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: white;
    padding: 25px 50px;
    border: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.final-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.6);
}

.btn-arrow {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.final-cta-btn:hover .btn-arrow {
    transform: translateX(5px);
}

.cta-note {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.7;
    font-style: italic;
}

/* Footer */
.footer {
    background: #1a1a2e;
    color: white;
    padding: 50px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: #ff6b35;
}

.footer-info p {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #ff6b35;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    margin-bottom: 5px;
    opacity: 0.7;
}

.disclaimer {
    font-size: 0.9rem;
    font-style: italic;
}

/* Floating Button */
.floating-button {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: white;
    padding: 18px 35px;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5);
    z-index: 1000;
    transition: all 0.3s ease;
    animation: pulse 2s infinite;
}

.floating-button:hover {
    transform: translateX(-50%) translateY(-3px);
    box-shadow: 0 12px 35px rgba(255, 107, 53, 0.7);
}

@keyframes pulse {
    0% { box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5); }
    50% { box-shadow: 0 8px 25px rgba(255, 107, 53, 0.8), 0 0 0 10px rgba(255, 107, 53, 0.1); }
    100% { box-shadow: 0 8px 25px rgba(255, 107, 53, 0.5); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header{
        display: none;
    }
    
    .logo {
        text-align: center;
    }
    
    .nav {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
    }
    
    .nav a {
        font-size: 0.9rem;
        padding: 8px 12px;
    }
    
    .cta-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
        margin-top: 10px;
    }
    
    .hero {
        padding: 100px 0 60px;
        text-align: center;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.2;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 25px;
        line-height: 1.4;
    }
    
    .hero-benefits {
        margin-bottom: 30px;
        align-items: center;
    }
    
    .benefit-item {
        justify-content: center;
        font-size: 1rem;
        margin-bottom: 10px;
    }
    
    .hero-cta {
        padding: 15px 30px;
        font-size: 1rem;
        margin: 0 auto;
    }
    
    .hero-image {
        order: -1;
    }
    
    .image-placeholder {
        width: 280px;
        height: 280px;
        margin: 0 auto;
    }
    
    .about {
        padding: 60px 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .expertise-item {
        margin-bottom: 30px;
        padding: 25px 20px;
        text-align: center;
    }
    
    .about-stats {
        display: grid;
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .stat-item {
        padding: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .community-benefits {
        padding: 60px 0;
    }
    
    .benefit-module {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
        margin-bottom: 50px;
        padding: 30px 20px;
    }
    
    .benefit-module.right-image .module-content,
    .benefit-module.right-image .module-image {
        order: unset;
    }
    
    .module-content h3 {
        font-size: 1.5rem;
        line-height: 1.3;
        margin-bottom: 20px;
    }
    
    .module-content ul {
        text-align: left;
        margin-bottom: 25px;
    }
    
    .module-content li {
        font-size: 1rem;
        padding: 8px 0;
    }
    
    .module-image {
        order: -1;
    }
    
    .module-image img {
        max-width: 100%;
        height: auto;
        min-height: 200px;
        object-fit: cover;
    }
    
    .activity-rules {
        padding: 60px 0;
    }
    
    .rules-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 40px;
    }
    
    .rule-item {
        padding: 30px 20px;
        margin-bottom: 20px;
    }
    
    .rule-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
        margin: 0 auto 15px;
    }
    
    .rule-item h3 {
        font-size: 1.2rem;
        margin-bottom: 12px;
    }
    
    .rule-item p {
        font-size: 0.95rem;
        line-height: 1.5;
    }
    
    .final-cta {
        padding: 50px 0;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }
    
    .cta-content p {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
    
    .final-cta-btn {
        padding: 18px 35px;
        font-size: 1.1rem;
    }
    
    .footer {
        padding: 40px 0 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .footer-info h3 {
        font-size: 1.3rem;
    }
    
    .footer-info p {
        font-size: 0.95rem;
    }
    
    .footer-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
    }
    
    .floating-button {
        padding: 15px 25px;
        font-size: 1rem;
        bottom: 20px;
        max-width: calc(100vw - 40px);
        text-align: center;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 40px;
        line-height: 1.3;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .header {
        display: none;
    }
    
    .logo h1 {
        font-size: 1.6rem;
    }
    
    .logo span {
        font-size: 0.8rem;
    }
    
    .nav {
        gap: 10px;
    }
    
    .nav a {
        font-size: 0.85rem;
        padding: 6px 10px;
    }
    
    .cta-btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    
    .hero {
        padding: 80px 0 50px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.4;
    }
    
    .benefit-item {
        font-size: 0.9rem;
    }
    
    .benefit-item .icon {
        width: 35px;
        height: 35px;
        font-size: 1.2rem;
    }
    
    .hero-cta {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .image-placeholder {
        width: 240px;
        height: 240px;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: 30px;
    }
    
    .expertise-item {
        padding: 20px 15px;
    }
    
    .expertise-item h3 {
        font-size: 1.1rem;
    }
    
    .expertise-item p {
        font-size: 0.95rem;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .benefit-module {
        padding: 25px 15px;
        margin-bottom: 40px;
    }
    
    .module-content h3 {
        font-size: 1.3rem;
        line-height: 1.3;
    }
    
    .module-content li {
        font-size: 0.9rem;
        padding: 6px 0;
    }
    
    .module-cta {
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .rule-item {
        padding: 25px 15px;
    }
    
    .rule-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .rule-item h3 {
        font-size: 1.1rem;
    }
    
    .rule-item p {
        font-size: 0.9rem;
    }
    
    .final-cta {
        padding: 40px 0;
    }
    
    .cta-content h2 {
        font-size: 1.5rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
    
    .final-cta-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .floating-button {
        padding: 12px 20px;
        font-size: 0.9rem;
        bottom: 15px;
    }
    
    .cta-note {
        font-size: 0.8rem;
    }
    
    .footer-info h3 {
        font-size: 1.2rem;
    }
    
    .footer-info p {
        font-size: 0.9rem;
    }
    
    .footer-links a {
        font-size: 0.9rem;
    }
    
    .footer-bottom p {
        font-size: 0.85rem;
    }
    
    .disclaimer {
        font-size: 0.8rem;
    }
}