/* ===== 91大事件今日大赛 - 深色科技风 ===== */
/* 字体导入 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=ZCOOL+KuaiLe&display=swap');

/* CSS 变量 */
:root {
    --bg-primary: #1a1a2e;
    --bg-card: #16213e;
    --bg-secondary: #0f0f1e;
    --gold: #ffd700;
    --gold-dark: #d4a500;
    --gold-light: #ffe55c;
    --white: #ffffff;
    --gray-light: #c4c4c4;
    --gray: #8a8a9a;
    --gradient-gold: linear-gradient(135deg, #ffd700 0%, #ffb700 50%, #d4a500 100%);
    --gradient-dark: linear-gradient(135deg, #16213e 0%, #1a1a2e 100%);
    --shadow-gold: 0 8px 32px rgba(255, 215, 0, 0.15);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius: 12px;
    --transition: all 0.3s ease;
}

/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--bg-primary);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'ZCOOL KuaiLe', cursive;
    font-weight: normal;
    letter-spacing: 1px;
}

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

a:hover {
    color: var(--gold-light);
}

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

ul {
    list-style: none;
}

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

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 15, 30, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.navbar.scrolled {
    background: rgba(15, 15, 30, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 1.8rem;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-weight: 900;
    font-size: 1.2rem;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    color: var(--white);
    font-size: 1rem;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

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

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

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--gold);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gold);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border: none;
    border-radius: 30px;
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.btn-gold {
    background: var(--gradient-gold);
    color: var(--bg-primary);
    box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(255, 215, 0, 0.3);
    color: var(--bg-primary);
}

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

.btn-outline:hover {
    background: var(--gold);
    color: var(--bg-primary);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px 60px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.9) 0%, rgba(22, 33, 62, 0.85) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.hero-tag {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(255, 215, 0, 0.15);
    border: 1px solid var(--gold);
    border-radius: 20px;
    color: var(--gold);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 4rem;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero h1 span {
    color: var(--gold);
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-light);
    margin-bottom: 35px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== 区块通用 ===== */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--gradient-gold);
    margin: 12px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    color: var(--gray);
    font-size: 1.1rem;
}

/* ===== 卡片网格 ===== */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

.event-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 215, 0, 0.08);
    position: relative;
}

.event-card:hover {
    transform: translateY(-8px);
    border-color: var(--gold);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--gold);
}

.event-card-img {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.event-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.event-card:hover .event-card-img img {
    transform: scale(1.08);
}

.event-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--bg-primary);
}

.badge-hot {
    background: var(--gold);
}

.badge-live {
    background: #ff4757;
    color: white;
}

.badge-soon {
    background: #1dd1a1;
    color: var(--bg-primary);
}

.event-card-body {
    padding: 20px;
}

.event-category {
    color: var(--gold);
    font-size: 0.85rem;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.event-card-body h3 {
    font-size: 1.3rem;
    color: var(--white);
    margin-bottom: 12px;
}

.event-meta {
    display: flex;
    justify-content: space-between;
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.event-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.event-progress {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 12px;
}

.event-progress-bar {
    height: 100%;
    background: var(--gradient-gold);
    border-radius: 3px;
}

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

.event-prize {
    color: var(--gold);
    font-weight: 700;
    font-size: 1.1rem;
}

/* ===== 数据统计 ===== */
.stats {
    background: var(--bg-secondary);
    padding: 60px 0;
    border-top: 1px solid rgba(255, 215, 0, 0.1);
    border-bottom: 1px solid rgba(255, 215, 0, 0.1);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 3rem;
    color: var(--gold);
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}

.stat-label {
    color: var(--gray-light);
    font-size: 1rem;
}

/* ===== 合作伙伴 ===== */
.partners {
    padding: 60px 0;
    text-align: center;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.partner-item {
    background: var(--bg-card);
    padding: 30px 20px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 215, 0, 0.08);
    transition: var(--transition);
    font-family: 'ZCOOL KuaiLe', cursive;
    color: var(--gray-light);
    font-size: 1.2rem;
}

.partner-item:hover {
    border-color: var(--gold);
    color: var(--gold);
    transform: scale(1.05);
}

/* ===== 分类筛选栏 ===== */
.filter-bar {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    margin-bottom: 40px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid rgba(255, 215, 0, 0.3);
    color: var(--gray-light);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-gold);
    color: var(--bg-primary);
    border-color: var(--gold);
}

/* ===== 排行榜 ===== */
.ranking-table {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 40px;
}

.ranking-header {
    background: var(--gradient-gold);
    color: var(--bg-primary);
    padding: 18px 25px;
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 1.4rem;
}

.ranking-row {
    display: grid;
    grid-template-columns: 80px 60px 1fr 120px 100px 80px;
    align-items: center;
    padding: 15px 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.ranking-row:hover {
    background: rgba(255, 215, 0, 0.05);
}

.ranking-row:last-child {
    border-bottom: none;
}

.rank-number {
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 1.5rem;
    color: var(--gray);
}

.rank-1 .rank-number { color: #ffd700; }
.rank-2 .rank-number { color: #c0c0c0; }
.rank-3 .rank-number { color: #cd7f32; }

.rank-1, .rank-2, .rank-3 {
    background: rgba(255, 215, 0, 0.05);
}

.user-avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--gold);
}

.username {
    font-weight: 700;
    color: var(--white);
}

.score {
    color: var(--gold);
    font-weight: 700;
}

.winrate {
    color: #1dd1a1;
}

.rank-change {
    font-size: 1.2rem;
}

.change-up { color: #1dd1a1; }
.change-down { color: #ff4757; }
.change-same { color: var(--gray); }

/* ===== 侧边栏 ===== */
.layout-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 40px;
}

.sidebar-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid rgba(255, 215, 0, 0.08);
}

.sidebar-card h3 {
    color: var(--gold);
    font-size: 1.3rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gold);
}

.hot-event-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hot-event-item:last-child {
    border-bottom: none;
}

.hot-event-rank {
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 1.5rem;
    color: var(--gold);
    min-width: 30px;
}

.hot-event-info h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 4px;
}

.hot-event-info p {
    color: var(--gray);
    font-size: 0.85rem;
}

/* ===== 规则页 ===== */
.rules-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
}

.rules-nav {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 25px;
    position: sticky;
    top: 90px;
    height: fit-content;
}

.rules-nav a {
    display: block;
    padding: 12px 18px;
    color: var(--gray-light);
    border-radius: 8px;
    margin-bottom: 5px;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.rules-nav a:hover,
.rules-nav a.active {
    background: rgba(255, 215, 0, 0.1);
    color: var(--gold);
    border-left-color: var(--gold);
}

.rules-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 35px;
}

.rules-section {
    margin-bottom: 40px;
}

.rules-section h2 {
    color: var(--gold);
    font-size: 1.8rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
}

.rules-section h3 {
    color: var(--white);
    font-size: 1.3rem;
    margin: 20px 0 12px;
}

.rules-section p,
.rules-section li {
    color: var(--gray-light);
    margin-bottom: 12px;
    line-height: 1.8;
}

.rules-section ol,
.rules-section ul {
    padding-left: 25px;
    margin-bottom: 15px;
}

.rules-section li {
    margin-bottom: 8px;
}

.rules-section ul li {
    list-style: disc;
}

.rules-section ol li {
    list-style: decimal;
}

/* FAQ 手风琴 */
.faq-item {
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.faq-question {
    padding: 18px 22px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--white);
    font-weight: 700;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(255, 215, 0, 0.05);
}

.faq-icon {
    color: var(--gold);
    font-size: 1.3rem;
    transition: var(--transition);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    padding: 0 22px;
    color: var(--gray-light);
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 22px 18px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

/* ===== 精彩回顾 ===== */
.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
}

.highlight-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 16/10;
}

.highlight-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.highlight-card:hover img {
    transform: scale(1.1);
}

.highlight-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
}

.play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 215, 0, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--bg-primary);
    opacity: 0;
    transition: var(--transition);
}

.highlight-card:hover .play-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.highlight-overlay h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.highlight-overlay p {
    color: var(--gold);
    font-size: 0.9rem;
}

.champion-card {
    background: var(--gradient-dark);
    border-radius: var(--radius);
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 30px;
    border: 1px solid var(--gold);
    margin-bottom: 30px;
}

.champion-img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--gold);
}

.champion-info h3 {
    color: var(--gold);
    font-size: 2rem;
    margin-bottom: 10px;
}

.champion-info p {
    color: var(--gray-light);
    margin-bottom: 8px;
}

.crown {
    color: var(--gold);
    font-size: 2rem;
}

/* ===== 关于我们 - 时间线 ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-gold);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 20px 40px;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 28px;
    width: 18px;
    height: 18px;
    background: var(--gold);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    z-index: 1;
}

.timeline-item:nth-child(odd)::after {
    right: -9px;
}

.timeline-item:nth-child(even)::after {
    left: -9px;
}

.timeline-content {
    background: var(--bg-card);
    padding: 20px;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--gold);
    transform: scale(1.03);
}

.timeline-year {
    color: var(--gold);
    font-family: 'ZCOOL KuaiLe', cursive;
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.timeline-content h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--gray-light);
    font-size: 0.95rem;
}

/* ===== 团队 ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.team-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 215, 0, 0.08);
}

.team-card:hover {
    transform: translateY(-8px);
    border-color: var(--gold);
}

.team-img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.team-info {
    padding: 20px;
}

.team-info h3 {
    color: var(--gold);
    font-size: 1.4rem;
    margin-bottom: 5px;
}

.team-role {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.team-info p {
    color: var(--gray-light);
    font-size: 0.9rem;
}

/* ===== 联系表单 ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-form {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 35px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--gold);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 8px;
    color: var(--white);
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 35px;
}

.info-item {
    display: flex;
    gap: 18px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.info-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--gold);
    flex-shrink: 0;
}

.info-item h4 {
    color: var(--white);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.info-item p {
    color: var(--gray-light);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.social-link {
    width: 45px;
    height: 45px;
    background: rgba(255, 215, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    font-size: 1.3rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gold);
    color: var(--bg-primary);
    transform: translateY(-3px);
}

.map-placeholder {
    width: 100%;
    height: 250px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray);
    margin-top: 25px;
    border: 1px solid rgba(255, 215, 0, 0.1);
    background-image: linear-gradient(rgba(26,26,46,0.7), rgba(26,26,46,0.7));
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255, 215, 0, 0.1);
}

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

.footer-brand h3 {
    color: var(--gold);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.footer-brand p {
    color: var(--gray-light);
    margin-bottom: 20px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 18px;
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--gray-light);
}

.footer-col ul li a:hover {
    color: var(--gold);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--gray);
    font-size: 0.9rem;
}

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

.fade-in {
    animation: fadeInUp 0.8s ease;
}

/* ===== 分类大卡片(站点2用) - 此处为站点1的分类筛选 ===== */
.category-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 40px;
}

.category-pill {
    padding: 8px 20px;
    background: rgba(255, 215, 0, 0.1);
    border: 1px solid rgba(255, 215, 0, 0.3);
    border-radius: 20px;
    color: var(--gold);
    font-size: 0.9rem;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .layout-with-sidebar,
    .rules-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .rules-nav {
        position: static;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 30px;
        gap: 15px;
        transition: left 0.4s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .ranking-row {
        grid-template-columns: 50px 1fr 80px;
        gap: 10px;
        padding: 12px 15px;
    }
    
    .ranking-row > :nth-child(2),
    .ranking-row > :nth-child(5),
    .ranking-row > :nth-child(6) {
        display: none;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0 !important;
        text-align: left !important;
        padding-left: 50px;
        padding-right: 10px;
    }
    
    .timeline-item::after {
        left: 11px !important;
        right: auto !important;
    }
    
    .champion-card {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .events-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
}