/* ===== 品牌色板 ===== */
:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --secondary: #FDCB6E;
    --secondary-light: #FFEAA7;
    --accent: #00CEC9;
    --bg-dark: #0F0F1A;
    --bg-card: #1A1A2E;
    --bg-section: #16213E;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0C0;
    --text-muted: #6C6C80;
    --border-color: #2A2A40;
    --gradient-hero: linear-gradient(135deg, #0F0F1A 0%, #1A1A2E 50%, #16213E 100%);
    --gradient-primary: linear-gradient(135deg, #6C5CE7, #A29BFE);
    --gradient-gold: linear-gradient(135deg, #FDCB6E, #FFEAA7);
    --shadow-card: 0 8px 32px rgba(0,0,0,0.3);
    --shadow-hover: 0 12px 40px rgba(108,92,231,0.3);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ===== 重置 & 基础 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--secondary);
}

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

/* ===== 字体层级 ===== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: 48px; }
h2 { font-size: 32px; margin-bottom: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 18px; }

p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 15, 26, 0.98);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

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

.nav-link.active {
    color: var(--text-primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero 区 ===== */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(108,92,231,0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(253,203,110,0.08) 0%, transparent 50%);
    animation: heroGlow 10s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(20px, -20px) rotate(5deg); }
}

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

.hero-logo {
    width: 280px;
    margin-bottom: 24px;
    animation: fadeInDown 1s ease;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #FFFFFF, #A29BFE, #FDCB6E);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-countdown {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease 0.6s both;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    min-width: 80px;
    backdrop-filter: blur(10px);
}

.countdown-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.countdown-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.8s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 15px rgba(108,92,231,0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(108,92,231,0.5);
    color: #fff;
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 2px solid var(--primary-light);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

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

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

/* ===== 特色亮点 ===== */
.features {
    padding: 100px 0;
    background: var(--bg-card);
}

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

.feature-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    padding: 14px;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
    fill: #fff;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* ===== 球队展示 ===== */
.teams {
    padding: 100px 0;
    background: var(--bg-section);
}

.teams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
}

.team-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px 16px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--secondary);
}

.team-flag {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.team-card h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.team-card span {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== 新闻 ===== */
.news {
    padding: 100px 0;
    background: var(--bg-card);
}

.news-list {
    display: grid;
    gap: 24px;
}

.news-card {
    display: flex;
    gap: 24px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
    cursor: default;
}

.news-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.news-card-image {
    width: 200px;
    min-height: 140px;
    border-radius: var(--radius-sm);
    background: var(--gradient-primary);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.news-card-content {
    flex: 1;
}

.news-card-tag {
    display: inline-block;
    background: var(--gradient-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #fff;
}

.news-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.news-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.news-card-date {
    font-size: 12px;
    color: var(--text-muted);
}

.news-more {
    text-align: center;
    margin-top: 48px;
}

/* ===== 赛程页面 ===== */
.page-hero {
    padding: 120px 24px 60px;
    text-align: center;
    background: var(--gradient-hero);
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 42px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.schedule-section {
    padding: 60px 0;
}

.schedule-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
}

.schedule-list {
    display: grid;
    gap: 16px;
}

.schedule-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    transition: var(--transition);
}

.schedule-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

.schedule-date {
    text-align: center;
    min-width: 80px;
}

.schedule-date .day {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-light);
}

.schedule-date .month {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.schedule-match {
    flex: 1;
    text-align: center;
}

.schedule-match .teams {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.schedule-match .stage {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

.schedule-venue {
    text-align: right;
    min-width: 120px;
}

.schedule-venue .venue-name {
    font-size: 14px;
    color: var(--text-secondary);
}

.schedule-venue .venue-city {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 新闻详情页 ===== */
.news-detail-section {
    padding: 60px 0;
}

.news-articles {
    display: grid;
    gap: 32px;
}

.article-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.article-image {
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
}

.article-content {
    padding: 32px;
}

.article-tag {
    display: inline-block;
    background: var(--gradient-primary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #fff;
}

.article-content h2 {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.article-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* ===== 关于页 ===== */
.about-section {
    padding: 60px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-text h2 {
    font-size: 28px;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.about-text h2:first-child {
    margin-top: 0;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
}

.footer-logo {
    width: 160px;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    font-size: 14px;
    padding: 6px 0;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.social-icons a:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: translateY(-2px);
}

.social-icons a svg {
    width: 18px;
    height: 18px;
    fill: var(--text-secondary);
}

.social-icons a:hover svg {
    fill: #fff;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    h1 { font-size: 36px; }
    h2 { font-size: 28px; }
    .section-title { font-size: 28px; }
    
    .hero-title { font-size: 36px; }
    .hero-subtitle { font-size: 16px; }
    .hero-countdown { gap: 12px; }
    .countdown-item { padding: 12px 16px; min-width: 60px; }
    .countdown-number { font-size: 28px; }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(15,15,26,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }
    
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .teams-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-card {
        flex-direction: column;
    }
    
    .news-card-image {
        width: 100%;
        height: 160px;
    }
    
    .schedule-item {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .schedule-date,
    .schedule-venue {
        text-align: center;
        min-width: auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title { font-size: 28px; }
    .hero-logo { width: 200px; }
    .hero-countdown { gap: 8px; }
    .countdown-item { padding: 10px 12px; min-width: 50px; }
    .countdown-number { font-size: 22px; }
    .countdown-label { font-size: 11px; }
    
    .teams-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
    
    .stat-number { font-size: 36px; }
}