/* 足球直播 - irshe.cn 全站样式表 */
/* 设计风格：运动科技感，深色主题配绿色高亮 */

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

:root {
    --primary-green: #1db954;
    --dark-bg: #0d1117;
    --card-bg: #161b22;
    --text-white: #f0f6fc;
    --text-gray: #8b949e;
    --accent-blue: #1f6feb;
    --border-color: #30363d;
    --hover-green: #2dd66b;
    --gradient-start: #0d1117;
    --gradient-end: #1a2332;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

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

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

/* 头部导航 */
.site-header {
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 12px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-area img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-area h1 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-white);
}

.logo-area h1 span {
    color: var(--primary-green);
}

.main-nav {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.main-nav a {
    color: var(--text-gray);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-white);
    background: var(--card-bg);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 搜索框 */
.search-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

.search-bar .container {
    display: flex;
    justify-content: center;
}

.search-input-wrap {
    display: flex;
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.search-input-wrap input {
    flex: 1;
    padding: 10px 16px;
    background: var(--dark-bg);
    border: none;
    color: var(--text-white);
    font-size: 0.95rem;
    outline: none;
}

.search-input-wrap input::placeholder {
    color: var(--text-gray);
}

.search-input-wrap button {
    padding: 10px 20px;
    background: var(--primary-green);
    border: none;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.search-input-wrap button:hover {
    background: var(--hover-green);
}

/* Hero区域 */
.hero-section {
    position: relative;
    height: 480px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.4);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 20px;
}

.hero-content h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero-content h2 span {
    color: var(--primary-green);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 600px;
    margin: 0 auto 24px;
}

.hero-btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--primary-green);
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s, background 0.2s;
}

.hero-btn:hover {
    background: var(--hover-green);
    transform: translateY(-2px);
    color: #fff;
}

/* 通用section */
.section {
    padding: 60px 0;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-white);
}

.section-title span {
    color: var(--primary-green);
}

.section-desc {
    color: var(--text-gray);
    margin-bottom: 32px;
    font-size: 1rem;
}

/* 视频卡片网格 */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.video-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(29, 185, 84, 0.1);
}

.video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}

.video-thumb img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.video-card:hover .video-thumb img {
    transform: scale(1.05);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: rgba(29, 185, 84, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.video-card:hover .play-btn {
    opacity: 1;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.video-info {
    padding: 14px 16px;
}

.video-info h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-white);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    display: flex;
    gap: 12px;
    color: var(--text-gray);
    font-size: 0.8rem;
}

.video-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 世界杯球队 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.team-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: border-color 0.2s;
}

.team-card:hover {
    border-color: var(--primary-green);
}

.team-flag {
    width: 48px;
    height: 32px;
    border-radius: 4px;
    object-fit: cover;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.team-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.team-info p {
    font-size: 0.8rem;
    color: var(--text-gray);
}

.team-score {
    margin-left: auto;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-green);
}

/* 专家展示 */
.expert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}

.expert-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: transform 0.2s;
}

.expert-card:hover {
    transform: translateY(-3px);
}

.expert-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 12px;
    background: linear-gradient(135deg, var(--primary-green), var(--accent-blue));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.expert-card h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.expert-card .role {
    color: var(--primary-green);
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.expert-card p {
    color: var(--text-gray);
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.expert-btns {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.btn-sm {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    color: var(--text-white);
    transition: all 0.2s;
}

.btn-sm:hover {
    border-color: var(--primary-green);
    color: var(--primary-green);
}

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

.btn-sm.primary:hover {
    background: var(--hover-green);
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--primary-green);
}

.faq-question::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--primary-green);
    transition: transform 0.3s;
}

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

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.faq-item.active .faq-answer {
    padding: 0 20px 16px;
    max-height: 300px;
}

/* 用户评论 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.review-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.review-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.review-name {
    font-weight: 600;
    font-size: 0.9rem;
}

.review-stars {
    color: #f5a623;
    font-size: 0.85rem;
}

.review-text {
    color: var(--text-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 社区功能 */
.community-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.community-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 24px 16px;
    text-align: center;
    transition: border-color 0.2s, transform 0.2s;
}

.community-item:hover {
    border-color: var(--primary-green);
    transform: translateY(-2px);
}

.community-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.community-item h4 {
    font-size: 0.95rem;
    margin-bottom: 6px;
}

.community-item p {
    color: var(--text-gray);
    font-size: 0.8rem;
}

/* 合作品牌 */
.brand-wall {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.brand-wall .brand-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px 24px;
    color: var(--text-gray);
    font-weight: 600;
    font-size: 0.9rem;
}

/* 联系我们 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.contact-card h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--primary-green);
}

.contact-card p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

/* 分享按钮 */
.share-btns {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.share-btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #fff;
    transition: opacity 0.2s;
}

.share-btn:hover {
    opacity: 0.85;
    color: #fff;
}

.share-btn.wechat { background: #07c160; }
.share-btn.weibo { background: #e6162d; }
.share-btn.douyin { background: #161823; border: 1px solid var(--border-color); }
.share-btn.bilibili { background: #00a1d6; }

/* 页脚 */
.site-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--text-white);
}

.footer-col p,
.footer-col a {
    color: var(--text-gray);
    font-size: 0.85rem;
    display: block;
    margin-bottom: 6px;
}

.footer-col a:hover {
    color: var(--primary-green);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.85rem;
}

.qr-codes {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 16px 0;
}

.qr-item {
    text-align: center;
}

.qr-item .qr-placeholder {
    width: 100px;
    height: 100px;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 6px;
    font-size: 0.7rem;
    color: var(--text-gray);
}

.qr-item p {
    font-size: 0.8rem;
    color: var(--text-gray);
}

/* 面包屑 */
.breadcrumb {
    padding: 12px 0;
    font-size: 0.85rem;
    color: var(--text-gray);
}

.breadcrumb a {
    color: var(--text-gray);
}

.breadcrumb a:hover {
    color: var(--primary-green);
}

.breadcrumb span {
    margin: 0 6px;
}

/* 内页样式 */
.page-hero {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-hero h1 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.page-hero p {
    color: var(--text-gray);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 40px 0;
}

.page-content article {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    color: var(--text-gray);
}

.page-content article h2 {
    color: var(--text-white);
    font-size: 1.4rem;
    margin: 32px 0 16px;
}

.page-content article h3 {
    color: var(--text-white);
    font-size: 1.1rem;
    margin: 24px 0 12px;
}

.page-content article p {
    margin-bottom: 16px;
}

/* 标签 */
.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.tag {
    padding: 4px 12px;
    background: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-gray);
}

/* 响应式 */
@media (max-width: 768px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 12px;
    }

    .main-nav.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-section {
        height: 360px;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        flex-wrap: nowrap;
    }

    .section-title {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.4rem;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .expert-grid {
        grid-template-columns: 1fr;
    }

    .review-grid {
        grid-template-columns: 1fr;
    }
}

/* 懒加载占位 */
img[data-src] {
    opacity: 0;
    transition: opacity 0.3s;
}

img[data-src].loaded {
    opacity: 1;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}