/* ===== 开云体育 - 国旗拼贴嘉年华风 全站样式 ===== */
:root {
    --white: #FFFFFF;
    --gold: #FFD700;
    --dark: #1a1a2e;
    --brazil-green: #009c3b;
    --brazil-yellow: #ffdf00;
    --argentina-blue: #74acdf;
    --germany-red: #dd0000;
    --germany-black: #000000;
    --france-blue: #002395;
    --spain-red: #c60b1e;
    --italy-green: #008c45;
    --england-red: #cf081f;
    --japan-red: #bc002d;
    --mexico-green: #006847;
    --shadow: rgba(0,0,0,0.12);
    --radius: 12px;
    --transition: all 0.3s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    background: var(--white);
    color: #333;
    line-height: 1.7;
    overflow-x: hidden;
}

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

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

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

/* ===== 顶部导航 ===== */
.site-header {
    background: linear-gradient(135deg, var(--dark) 0%, #16213e 100%);
    position: sticky; top: 0; z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow);
}

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

.site-logo { display: flex; align-items: center; gap: 10px; }
.site-logo img { height: 42px; width: auto; }
.site-logo span { color: var(--gold); font-size: 1.4rem; font-weight: 700; letter-spacing: 1px; }

.main-nav { display: flex; gap: 0; }
.main-nav a {
    color: var(--white); padding: 22px 16px; font-size: 0.95rem; font-weight: 500;
    position: relative; transition: var(--transition);
}
.main-nav a::after {
    content: ''; position: absolute; bottom: 0; left: 50%; width: 0; height: 3px;
    background: var(--gold); transition: var(--transition); transform: translateX(-50%);
}
.main-nav a:hover, .main-nav a.active { color: var(--gold); }
.main-nav a:hover::after, .main-nav a.active::after { width: 80%; }

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

/* ===== 国旗色彩装饰条 ===== */
.flag-stripe {
    height: 4px;
    background: linear-gradient(90deg,
        var(--brazil-green) 0%, var(--brazil-yellow) 12.5%,
        var(--argentina-blue) 12.5%, var(--argentina-blue) 25%,
        var(--germany-red) 25%, var(--gold) 37.5%,
        var(--france-blue) 37.5%, var(--france-blue) 50%,
        var(--spain-red) 50%, var(--spain-red) 62.5%,
        var(--italy-green) 62.5%, var(--italy-green) 75%,
        var(--england-red) 75%, var(--england-red) 87.5%,
        var(--japan-red) 87.5%, var(--japan-red) 100%
    );
}

/* ===== Banner轮播 ===== */
.hero-banner {
    position: relative; overflow: hidden; height: 520px;
    background: var(--dark);
}
.banner-slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0; transition: opacity 0.8s ease;
}
.banner-slide.active { opacity: 1; }
.banner-slide img { width: 100%; height: 100%; object-fit: cover; }
.banner-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 100%);
    display: flex; align-items: center; padding-left: 8%;
}
.banner-text { color: var(--white); max-width: 550px; }
.banner-text h2 { font-size: 2.6rem; margin-bottom: 15px; line-height: 1.3; text-shadow: 2px 2px 8px rgba(0,0,0,0.5); }
.banner-text p { font-size: 1.1rem; margin-bottom: 25px; opacity: 0.9; }
.banner-btn {
    display: inline-block; padding: 12px 36px; background: var(--gold); color: var(--dark);
    font-weight: 700; border-radius: 50px; font-size: 1rem;
    transition: var(--transition); box-shadow: 0 4px 15px rgba(255,215,0,0.4);
}
.banner-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(255,215,0,0.6); color: var(--dark); }

.banner-dots {
    position: absolute; bottom: 25px; left: 50%; transform: translateX(-50%);
    display: flex; gap: 12px;
}
.banner-dots span {
    width: 14px; height: 14px; border-radius: 50%; background: rgba(255,255,255,0.4);
    cursor: pointer; transition: var(--transition); border: 2px solid transparent;
}
.banner-dots span.active { background: var(--gold); border-color: var(--white); transform: scale(1.2); }

/* ===== 倒计时 ===== */
.countdown-section {
    background: linear-gradient(135deg, var(--dark) 0%, #0f3460 100%);
    padding: 50px 0; text-align: center; position: relative; overflow: hidden;
}
.countdown-section::before {
    content: '🏆'; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
    font-size: 200px; opacity: 0.05;
}
.countdown-section h2 { color: var(--gold); font-size: 1.8rem; margin-bottom: 30px; }
.countdown-timer { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.countdown-item {
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,215,0,0.3);
    border-radius: var(--radius); padding: 20px 30px; min-width: 120px;
    backdrop-filter: blur(10px);
}
.countdown-item .number {
    font-size: 3rem; font-weight: 800; color: var(--gold);
    text-shadow: 0 0 20px rgba(255,215,0,0.5);
}
.countdown-item .label { color: rgba(255,255,255,0.8); font-size: 0.9rem; margin-top: 5px; }
.countdown-slogan { color: rgba(255,255,255,0.7); margin-top: 25px; font-size: 1.05rem; }

/* ===== 通用区块标题 ===== */
.section-title {
    text-align: center; margin-bottom: 40px; position: relative; padding-bottom: 15px;
}
.section-title h2 {
    font-size: 2rem; color: var(--dark); display: inline-block; position: relative;
}
.section-title h2::after {
    content: ''; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 4px; background: var(--gold); border-radius: 2px;
}
.section-title p { color: #666; margin-top: 15px; font-size: 1rem; }

/* ===== 32强国旗墙 ===== */
.flags-section { padding: 60px 0; background: #f8f9fa; }
.flags-grid {
    display: grid; grid-template-columns: repeat(8, 1fr); gap: 15px;
    max-width: 1000px; margin: 0 auto;
}
.flag-item {
    text-align: center; padding: 15px 8px; background: var(--white);
    border-radius: var(--radius); transition: var(--transition);
    box-shadow: 0 2px 10px var(--shadow); cursor: pointer;
}
.flag-item:hover { transform: translateY(-5px) scale(1.05); box-shadow: 0 8px 25px rgba(0,0,0,0.15); }
.flag-item .flag-emoji { font-size: 2.5rem; margin-bottom: 6px; }
.flag-item .flag-name { font-size: 0.75rem; color: #555; font-weight: 500; }

/* ===== 焦点赛事 ===== */
.matches-section { padding: 60px 0; }
.matches-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.match-card {
    background: var(--white); border-radius: var(--radius); overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow); transition: var(--transition);
    border: 1px solid #eee;
}
.match-card:hover { transform: translateY(-5px); box-shadow: 0 8px 30px rgba(0,0,0,0.15); }
.match-card .match-stage {
    background: linear-gradient(135deg, var(--france-blue), var(--dark));
    color: var(--white); text-align: center; padding: 8px; font-size: 0.85rem;
}
.match-card .match-teams {
    display: flex; align-items: center; justify-content: space-around; padding: 25px 15px;
}
.match-card .team { text-align: center; flex: 1; }
.match-card .team .flag-emoji { font-size: 2.5rem; }
.match-card .team .team-name { font-size: 0.9rem; font-weight: 600; margin-top: 8px; }
.match-card .vs { font-size: 1.5rem; font-weight: 800; color: var(--gold); }
.match-card .match-time { text-align: center; padding: 10px; background: #f8f9fa; font-size: 0.85rem; color: #666; }

/* ===== 积分表 ===== */
.standings-section { padding: 60px 0; background: #f8f9fa; }
.tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 5px; margin-bottom: 25px; }
.tab-btn {
    padding: 8px 20px; border: 2px solid var(--dark); background: transparent;
    color: var(--dark); cursor: pointer; border-radius: 50px; font-weight: 600;
    transition: var(--transition); font-size: 0.9rem;
}
.tab-btn.active, .tab-btn:hover { background: var(--dark); color: var(--gold); }
.tab-content { display: none; }
.tab-content.active { display: block; }
.standings-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 15px var(--shadow); }
.standings-table th {
    background: var(--dark); color: var(--gold); padding: 12px 15px; text-align: center;
    font-size: 0.85rem; font-weight: 600;
}
.standings-table td { padding: 10px 15px; text-align: center; border-bottom: 1px solid #eee; font-size: 0.9rem; }
.standings-table tr:hover { background: #f0f7ff; }
.standings-table .rank-up { color: var(--brazil-green); }
.standings-table .rank-down { color: var(--germany-red); }

/* ===== 新闻列表 ===== */
.news-section { padding: 60px 0; }
.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item {
    display: flex; gap: 20px; background: var(--white); border-radius: var(--radius);
    overflow: hidden; box-shadow: 0 2px 15px var(--shadow); transition: var(--transition);
}
.news-item:hover { transform: translateX(5px); box-shadow: 0 4px 20px rgba(0,0,0,0.12); }
.news-item .news-img { width: 280px; min-height: 180px; overflow: hidden; flex-shrink: 0; }
.news-item .news-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
.news-item:hover .news-img img { transform: scale(1.05); }
.news-item .news-content { padding: 20px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-item .news-content h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--dark); line-height: 1.5; }
.news-item .news-content p { color: #666; font-size: 0.9rem; line-height: 1.6; margin-bottom: 10px; }
.news-item .news-meta { font-size: 0.8rem; color: #999; }

.more-btn {
    display: block; width: fit-content; margin: 30px auto 0; padding: 12px 40px;
    background: var(--dark); color: var(--gold); border-radius: 50px;
    font-weight: 600; transition: var(--transition);
}
.more-btn:hover { background: var(--gold); color: var(--dark); }

/* ===== 历届冠军时间线 ===== */
.timeline-section { padding: 60px 0; background: linear-gradient(135deg, #fefbd8 0%, #fff9e6 100%); }
.timeline-scroll { overflow-x: auto; padding: 20px 0 30px; }
.timeline {
    display: flex; gap: 0; min-width: max-content; position: relative; padding: 40px 20px;
}
.timeline::before {
    content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 3px;
    background: var(--gold); transform: translateY(-50%);
}
.timeline-item {
    position: relative; text-align: center; min-width: 120px; padding-top: 50px;
    cursor: pointer;
}
.timeline-item::before {
    content: '🏆'; position: absolute; top: 15px; left: 50%; transform: translateX(-50%);
    font-size: 1.5rem; z-index: 2;
}
.timeline-item .year { font-weight: 800; color: var(--dark); font-size: 0.95rem; }
.timeline-item .champion { font-size: 0.8rem; color: #666; margin-top: 4px; }
.timeline-item:hover .champion { color: var(--gold); font-weight: 600; }

/* ===== 金靴排行 ===== */
.topscorer-section { padding: 60px 0; }
.scorer-list { max-width: 700px; margin: 0 auto; }
.scorer-item {
    display: flex; align-items: center; gap: 20px; padding: 18px 25px;
    background: var(--white); margin-bottom: 12px; border-radius: var(--radius);
    box-shadow: 0 2px 10px var(--shadow); transition: var(--transition);
}
.scorer-item:first-child {
    background: linear-gradient(135deg, #fff9e6 0%, #fffdf0 100%);
    border: 2px solid var(--gold); position: relative; overflow: hidden;
}
.scorer-item:first-child::after {
    content: ''; position: absolute; top: -50%; right: -50%; width: 100%; height: 200%;
    background: radial-gradient(circle, rgba(255,215,0,0.15) 0%, transparent 70%);
}
.scorer-item:hover { transform: translateX(5px); }
.scorer-item .rank { font-size: 1.8rem; font-weight: 800; color: var(--gold); min-width: 40px; }
.scorer-item .player-avatar {
    width: 50px; height: 50px; border-radius: 50%; background: #eee;
    display: flex; align-items: center; justify-content: center; font-size: 1.5rem;
}
.scorer-item .player-info { flex: 1; }
.scorer-item .player-info .name { font-weight: 700; font-size: 1.05rem; }
.scorer-item .player-info .team { font-size: 0.85rem; color: #666; }
.scorer-item .goals { font-size: 1.5rem; font-weight: 800; color: var(--germany-red); }

/* ===== 经典进球 ===== */
.classic-goals-section { padding: 60px 0; background: var(--dark); }
.classic-goals-section .section-title h2 { color: var(--white); }
.classic-goals-section .section-title p { color: rgba(255,255,255,0.6); }
.goals-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.goal-card {
    border-radius: var(--radius); overflow: hidden; position: relative; cursor: pointer;
    transition: var(--transition); aspect-ratio: 16/10;
}
.goal-card:hover { transform: scale(1.03); }
.goal-card img { width: 100%; height: 100%; object-fit: cover; }
.goal-card .goal-overlay {
    position: absolute; bottom: 0; left: 0; right: 0; padding: 15px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    color: var(--white);
}
.goal-card .goal-overlay h4 { font-size: 0.95rem; margin-bottom: 4px; }
.goal-card .goal-overlay span { font-size: 0.8rem; opacity: 0.7; }
.goal-card .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(--dark); transition: var(--transition);
}
.goal-card:hover .play-icon { transform: translate(-50%,-50%) scale(1.15); }

/* ===== APP下载引导 ===== */
.app-section {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--brazil-green) 0%, #006400 100%);
    color: var(--white);
}
.app-inner { display: flex; align-items: center; gap: 50px; }
.app-info { flex: 1; }
.app-info h2 { font-size: 2rem; margin-bottom: 15px; }
.app-info p { opacity: 0.9; margin-bottom: 20px; line-height: 1.7; }
.app-features { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 25px; }
.app-feature { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; }
.app-feature .icon { font-size: 1.3rem; }
.app-buttons { display: flex; gap: 15px; flex-wrap: wrap; }
.app-btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px;
    background: var(--white); color: var(--dark); border-radius: 50px;
    font-weight: 600; transition: var(--transition);
}
.app-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 15px rgba(0,0,0,0.3); color: var(--dark); }
.app-mockup { flex: 0 0 300px; text-align: center; }
.app-mockup img { max-height: 400px; filter: drop-shadow(0 10px 30px rgba(0,0,0,0.3)); }

/* ===== 页脚 ===== */
.site-footer {
    background: var(--dark); color: rgba(255,255,255,0.7); padding: 50px 0 0;
}
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; margin-bottom: 40px; }
.footer-col h4 { color: var(--gold); margin-bottom: 15px; font-size: 1.05rem; }
.footer-col a { display: block; color: rgba(255,255,255,0.6); padding: 4px 0; font-size: 0.9rem; transition: var(--transition); }
.footer-col a:hover { color: var(--gold); padding-left: 5px; }
.footer-col p { font-size: 0.9rem; line-height: 1.7; }
.footer-social { display: flex; gap: 12px; margin-top: 15px; }
.footer-social a {
    width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.1);
    display: flex; align-items: center; justify-content: center; font-size: 1rem;
    transition: var(--transition);
}
.footer-social a:hover { background: var(--gold); color: var(--dark); }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center;
    font-size: 0.85rem;
}
.footer-partners { display: flex; justify-content: center; gap: 30px; align-items: center; margin-top: 15px; opacity: 0.5; }

/* ===== 内页通用 ===== */
.page-banner {
    height: 300px; background-size: cover; background-position: center;
    display: flex; align-items: center; justify-content: center;
    position: relative;
}
.page-banner::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,0.85), rgba(15,52,96,0.7));
}
.page-banner h1 { color: var(--white); font-size: 2.5rem; position: relative; z-index: 1; text-shadow: 2px 2px 10px rgba(0,0,0,0.5); }
.breadcrumb { padding: 15px 0; background: #f8f9fa; font-size: 0.85rem; }
.breadcrumb a { color: var(--france-blue); }
.breadcrumb span { color: #999; }

/* ===== 文章详情 ===== */
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 30px; padding: 40px 0; }
.article-main {}
.article-main h1 { font-size: 1.8rem; color: var(--dark); margin-bottom: 15px; line-height: 1.4; }
.article-meta { display: flex; gap: 20px; color: #999; font-size: 0.85rem; margin-bottom: 25px; padding-bottom: 15px; border-bottom: 1px solid #eee; }
.article-body { font-size: 1rem; line-height: 1.9; }
.article-body p { margin-bottom: 18px; }
.article-body img { border-radius: var(--radius); margin: 20px 0; }
.article-body h2, .article-body h3 { margin: 25px 0 15px; color: var(--dark); }

.sidebar {}
.sidebar-widget { background: var(--white); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; box-shadow: 0 2px 10px var(--shadow); }
.sidebar-widget h3 { font-size: 1.1rem; color: var(--dark); margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid var(--gold); }
.sidebar-widget .widget-item { padding: 10px 0; border-bottom: 1px solid #f0f0f0; }
.sidebar-widget .widget-item:last-child { border-bottom: none; }
.sidebar-widget .widget-item a { color: #333; font-size: 0.9rem; }
.sidebar-widget .widget-item a:hover { color: var(--france-blue); }

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag-cloud a {
    display: inline-block; padding: 4px 14px; background: #f0f0f0; border-radius: 50px;
    font-size: 0.8rem; color: #666; transition: var(--transition);
}
.tag-cloud a:hover { background: var(--gold); color: var(--dark); }

/* ===== 投票模块 ===== */
.vote-module { background: #f8f9fa; border-radius: var(--radius); padding: 25px; margin: 30px 0; text-align: center; }
.vote-module h3 { margin-bottom: 15px; color: var(--dark); }
.vote-options { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.vote-btn {
    padding: 10px 30px; border: 2px solid var(--dark); background: transparent;
    border-radius: 50px; cursor: pointer; font-weight: 600; transition: var(--transition);
}
.vote-btn:hover { background: var(--gold); border-color: var(--gold); }

/* ===== 评论区 ===== */
.comments-section { margin-top: 40px; padding-top: 30px; border-top: 2px solid #eee; }
.comments-section h3 { margin-bottom: 20px; }
.comment-form textarea {
    width: 100%; height: 100px; border: 1px solid #ddd; border-radius: var(--radius);
    padding: 15px; font-size: 0.95rem; resize: vertical; font-family: inherit;
}
.comment-form button {
    margin-top: 10px; padding: 10px 30px; background: var(--dark); color: var(--gold);
    border: none; border-radius: 50px; cursor: pointer; font-weight: 600; transition: var(--transition);
}
.comment-form button:hover { background: var(--gold); color: var(--dark); }

/* ===== 球队页 ===== */
.team-tabs { display: flex; gap: 5px; margin-bottom: 25px; border-bottom: 2px solid #eee; }
.team-tab {
    padding: 12px 25px; background: transparent; border: none; cursor: pointer;
    font-weight: 600; color: #666; transition: var(--transition); position: relative;
}
.team-tab.active { color: var(--dark); }
.team-tab.active::after {
    content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 3px;
    background: var(--gold);
}

.player-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 15px; }
.player-card {
    text-align: center; padding: 20px 10px; background: var(--white); border-radius: var(--radius);
    box-shadow: 0 2px 10px var(--shadow); transition: var(--transition);
}
.player-card:hover { transform: translateY(-5px); }
.player-card .player-photo {
    width: 80px; height: 80px; border-radius: 50%; background: #eee; margin: 0 auto 10px;
    display: flex; align-items: center; justify-content: center; font-size: 2rem;
}
.player-card .player-name { font-weight: 600; font-size: 0.95rem; }
.player-card .player-pos { font-size: 0.8rem; color: #999; }

/* ===== 数据中心 ===== */
.data-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(350px, 1fr)); gap: 25px; }
.data-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: 0 2px 15px var(--shadow); }
.data-card-header { background: var(--dark); color: var(--gold); padding: 15px 20px; font-weight: 600; }
.data-card-body { padding: 20px; }

/* ===== 图集 ===== */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 15px; }
.gallery-item { border-radius: var(--radius); overflow: hidden; cursor: pointer; transition: var(--transition); }
.gallery-item:hover { transform: scale(1.02); }
.gallery-item img { width: 100%; height: 220px; object-fit: cover; }

/* ===== APP下载页 ===== */
.app-page {
    min-height: 100vh; display: flex; flex-direction: column; align-items: center;
    justify-content: center; text-align: center; padding: 40px 20px;
    background: linear-gradient(135deg, var(--dark) 0%, #0f3460 50%, var(--brazil-green) 100%);
    color: var(--white); position: relative; overflow: hidden;
}
.app-page::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255,215,0,0.1) 0%, transparent 50%);
}
.app-page-content { position: relative; z-index: 1; max-width: 800px; }
.app-page-content .app-logo-big { font-size: 4rem; margin-bottom: 20px; }
.app-page-content h1 { font-size: 2.8rem; margin-bottom: 15px; }
.app-page-content .slogan { font-size: 1.3rem; opacity: 0.8; margin-bottom: 40px; }
.app-features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 40px; text-align: left; }
.app-feat-item { display: flex; gap: 12px; align-items: flex-start; }
.app-feat-item .feat-icon { font-size: 2rem; }
.app-feat-item h4 { font-size: 1rem; margin-bottom: 4px; }
.app-feat-item p { font-size: 0.85rem; opacity: 0.7; }
.app-download-area { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-bottom: 30px; }
.app-dl-btn {
    padding: 15px 40px; background: var(--gold); color: var(--dark); border-radius: 50px;
    font-weight: 700; font-size: 1.1rem; transition: var(--transition);
    box-shadow: 0 4px 20px rgba(255,215,0,0.4);
}
.app-dl-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(255,215,0,0.6); color: var(--dark); }
.app-qrcode { width: 160px; height: 160px; background: var(--white); border-radius: var(--radius); margin: 0 auto; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: #333; }
.app-reviews { margin-top: 40px; }
.app-reviews h3 { margin-bottom: 20px; }
.review-cards { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }
.review-card {
    background: rgba(255,255,255,0.1); backdrop-filter: blur(10px); border-radius: var(--radius);
    padding: 20px; max-width: 250px; text-align: left;
}
.review-card .stars { color: var(--gold); margin-bottom: 8px; }
.review-card p { font-size: 0.85rem; opacity: 0.8; line-height: 1.5; }
.review-card .reviewer { font-size: 0.8rem; margin-top: 8px; opacity: 0.5; }

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .header-inner { flex-wrap: wrap; }
    .main-nav { display: none; flex-direction: column; width: 100%; background: var(--dark); }
    .main-nav.open { display: flex; }
    .main-nav a { padding: 15px 20px; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .mobile-toggle { display: block; }
    .hero-banner { height: 380px; }
    .banner-text h2 { font-size: 1.8rem; }
    .flags-grid { grid-template-columns: repeat(4, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .app-inner { flex-direction: column; text-align: center; }
    .app-mockup { flex: none; }
    .app-features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 576px) {
    .flags-grid { grid-template-columns: repeat(4, 1fr); gap: 8px; }
    .countdown-item { min-width: 80px; padding: 15px; }
    .countdown-item .number { font-size: 2rem; }
    .news-item { flex-direction: column; }
    .news-item .news-img { width: 100%; min-height: 200px; }
    .hero-banner { height: 300px; }
    .banner-text h2 { font-size: 1.4rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .matches-grid { grid-template-columns: 1fr; }
}

/* ===== 懒加载 ===== */
img[loading="lazy"] { opacity: 0; transition: opacity 0.5s; }
img[loading="lazy"].loaded, img[loading="lazy"][src] { opacity: 1; }

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }