/* 이전과 동일한 스타일 시트 (생략하지 않고 포함) */
        :root {
            --dark-bg: #0a0a1a;
            --primary-card-bg: #14142B;
            --secondary-card-bg: #1f1f3d;
            --text-primary: #e0e0e0;
            --text-secondary: #a0a0c0;
            --accent-color: #4A90E2;
            --accent-glow: rgba(74, 144, 226, 0.5);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Noto Sans KR', sans-serif; background-color: var(--dark-bg); color: var(--text-primary); overflow-x: hidden; }
        .container { max-width: 1200px; margin: 0 auto; padding: 100px 20px; }
        h1, h2, h3 { font-weight: 700; }
        h2 { font-size: 2.5rem; text-align: center; margin-bottom: 20px; font-weight: 900; }
        .section-subtitle { font-size: 1.1rem; color: var(--text-secondary); text-align: center; max-width: 800px; margin: 0 auto 60px auto; line-height: 1.7; }
        .navbar { display: flex; justify-content: space-between; align-items: center; padding: 20px 40px; background-color: rgba(10, 10, 26, 0.8); backdrop-filter: blur(10px); position: fixed; width: 100%; top: 0; z-index: 1000; }
        .navbar .logo { font-size: 1.8rem; font-weight: 900; color: var(--text-primary); text-decoration: none; }
        .navbar .logo span { color: var(--accent-color); }
        .cta-button { background: var(--accent-color); color: #fff; padding: 12px 25px; border-radius: 8px; text-decoration: none; font-weight: 700; transition: all 0.3s ease; box-shadow: 0 0 15px var(--accent-glow); }
        .cta-button:hover { transform: translateY(-3px); box-shadow: 0 0 25px var(--accent-glow); }
        #hero { min-height: 100vh; /* background-image: linear-gradient(rgba(10, 10, 26, 0.85), rgba(10, 10, 26, 0.85)), url('https://images.unsplash.com/photo-1542751371-adc38448a05e?q=80&w=2070&auto=format&fit=crop'); */ background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; text-align: center; padding-top: 80px; }
        .hero-content { max-width: 900px; }
        .hero-content h1 { font-size: 4rem; font-weight: 900; line-height: 1.2; margin-bottom: 20px; text-shadow: 0 0 15px rgba(0,0,0,0.5); }
        .hero-content p { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 40px; }
        .matches-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .match-card { background-color: var(--primary-card-bg); border-radius: 12px; padding: 25px; border: 1px solid rgba(255, 255, 255, 0.1); transition: all 0.3s ease; }
        .match-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .match-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
        .match-header span { font-size: 0.9rem; color: var(--text-secondary); }
        .live-dot { color: #ff4d4d; font-weight: 700; }
        .teams { display: flex; justify-content: space-around; align-items: center; text-align: center; font-size: 1.1rem; font-weight: 700; }
        .team img { width: 60px; height: 60px; margin-bottom: 10px; }
        .vs { font-size: 1.5rem; color: var(--text-secondary); }
        .match-link { display: block; margin-top: 25px; text-align: center; color: var(--accent-color); text-decoration: none; font-weight: 700; }
        .features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; }
        .feature-item { background: var(--primary-card-bg); padding: 30px; border-radius: 12px; text-align: center; border: 1px solid rgba(255,255,255,0.1); }
        .feature-item .icon { font-size: 3rem; color: var(--accent-color); margin-bottom: 20px; }
        .feature-item h3 { font-size: 1.5rem; margin-bottom: 15px; }
        .feature-item p { color: var(--text-secondary); font-size: 1rem; line-height: 1.6; }
        .process-section { display: flex; justify-content: space-between; align-items: center; gap: 40px; margin-top: 40px; }
        .process-step { text-align: center; flex: 1; }
        .process-step .icon { font-size: 4rem; color: var(--accent-color); margin-bottom: 20px; }
        .process-step h3 { font-size: 1.5rem; margin-bottom: 10px; }
        .process-step p { color: var(--text-secondary); }
        .arrow { font-size: 2rem; color: var(--text-secondary); }
        .testimonials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .testimonial-card { background: var(--secondary-card-bg); padding: 30px; border-radius: 12px; border-left: 5px solid var(--accent-color); }
        .testimonial-card p { font-style: italic; margin-bottom: 20px; line-height: 1.7; }
        .testimonial-card .author { font-weight: 700; color: var(--text-primary); }
        .news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
        .news-card { background: var(--primary-card-bg); border-radius: 12px; overflow: hidden; border: 1px solid rgba(255, 255, 255, 0.1); transition: all 0.3s ease; }
        .news-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3); }
        .news-card img { width: 100%; height: 200px; object-fit: cover; }
        .news-content { padding: 25px; }
        .news-content h3 { font-size: 1.3rem; margin-bottom: 15px; }
        .news-content p { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.6; }
        .faq-container { max-width: 800px; margin: 0 auto; }
        .faq-item { background: var(--primary-card-bg); border-radius: 8px; margin-bottom: 15px; border: 1px solid rgba(255, 255, 255, 0.1); }
        .faq-question { width: 100%; background: none; border: none; padding: 20px; text-align: left; font-size: 1.1rem; font-weight: 700; color: var(--text-primary); cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
        .faq-question .toggle-icon { transition: transform 0.3s ease; }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; color: var(--text-secondary); line-height: 1.7; padding: 0 20px; }
        .faq-item.active .faq-question .toggle-icon { transform: rotate(45deg); }
        .faq-item.active .faq-answer { max-height: 200px; padding: 0 20px 20px; }
        footer { text-align: center; padding: 40px 20px; border-top: 1px solid rgba(255,255,255,0.1); margin-top: 60px; }
        footer p { color: var(--text-secondary); } 

/* 모바일 반응형 스타일 */
@media (max-width: 768px) {
    .container { padding: 60px 20px; }
    h2 { font-size: 2rem; }
    .section-subtitle { font-size: 1rem; margin-bottom: 40px; }
    
    .navbar { padding: 15px 20px; }
    .navbar .logo { font-size: 1.5rem; }
    .cta-button { padding: 10px 20px; font-size: 0.9rem; }

    #hero { min-height: 80vh; }
    .hero-content h1 { font-size: 2.5rem; }
    .hero-content p { font-size: 1rem; }

    .matches-grid,
    .features-grid,
    .testimonials-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .process-section {
        flex-direction: column;
        gap: 20px;
    }
    .arrow {
        transform: rotate(90deg);
        margin: 10px 0;
    }
    
    .faq-question {
        font-size: 1rem;
    }
    
    #report-popup div {
        max-width: 90vw;
        max-height: 85vh;
    }
    #close-popup {
        top: -30px;
        right: 0px;
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 { font-size: 2rem; }
}