/* ===== 开云电竞官网 - 完整样式表 ===== */
/* 全局重置与基础 */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root { --primary: #1a1a2e; --secondary: #16213e; --accent: #f0c040; --accent2: #e94560; --bg: #0f0f1a; --card-bg: rgba(255,255,255,0.05); --text: #e0e0e0; --text2: #a0a0b0; --glass: rgba(255,255,255,0.08); --shadow: 0 8px 32px rgba(0,0,0,0.4); --radius: 20px; --transition: 0.3s cubic-bezier(0.4,0,0.2,1); }
.dark-mode { --primary: #e0e0e0; --secondary: #f5f5f5; --bg: #ffffff; --card-bg: rgba(0,0,0,0.03); --text: #1a1a2e; --text2: #555; --glass: rgba(0,0,0,0.05); --shadow: 0 8px 32px rgba(0,0,0,0.1); }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; transition: background 0.4s, color 0.4s; overflow-x: hidden; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent2); }
img, svg { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
/* 玻璃拟态卡片 */
.glass-card { background: var(--glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); box-shadow: var(--shadow); padding: 32px; transition: transform 0.4s, box-shadow 0.4s; }
.glass-card:hover { transform: translateY(-6px); box-shadow: 0 12px 48px rgba(0,0,0,0.5); }
/* 渐变背景 */
.gradient-bg { background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); position: relative; overflow: hidden; }
.gradient-bg::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 30% 40%, rgba(240,192,64,0.08) 0%, transparent 60%), radial-gradient(circle at 70% 60%, rgba(233,69,96,0.06) 0%, transparent 50%); animation: gradientShift 20s ease infinite; }
@keyframes gradientShift { 0% { transform: translate(0,0); } 50% { transform: translate(10%,10%); } 100% { transform: translate(0,0); } }
/* 按钮 */
.btn { display: inline-block; padding: 14px 36px; background: linear-gradient(135deg, var(--accent), #e6b800); color: #1a1a2e; font-weight: 700; border-radius: 50px; border: none; cursor: pointer; transition: var(--transition); box-shadow: 0 4px 20px rgba(240,192,64,0.3); text-align: center; }
.btn:hover { transform: scale(1.05); box-shadow: 0 8px 30px rgba(240,192,64,0.5); color: #1a1a2e; }
.btn-outline { background: transparent; border: 2px solid var(--accent); color: var(--accent); box-shadow: none; }
.btn-outline:hover { background: var(--accent); color: #1a1a2e; }
/* 导航 */
header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: rgba(15,15,26,0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.06); transition: background 0.4s, box-shadow 0.4s; }
.dark-mode header { background: rgba(255,255,255,0.85); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 24px; max-width: 1280px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 1.6rem; font-weight: 800; color: var(--accent); }
.logo svg { width: 40px; height: 40px; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--text); font-weight: 500; font-size: 0.95rem; padding: 6px 0; position: relative; }
.nav-links a::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--accent); transition: var(--transition); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.dark-toggle { background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; padding: 8px; border-radius: 50%; transition: var(--transition); }
.dark-toggle:hover { background: var(--glass); }
.mobile-menu-btn { display: none; background: none; border: none; color: var(--text); font-size: 1.8rem; cursor: pointer; }
.search-box { display: flex; align-items: center; background: var(--glass); border-radius: 30px; padding: 4px 16px; border: 1px solid rgba(255,255,255,0.1); }
.search-box input { background: none; border: none; color: var(--text); padding: 8px 4px; outline: none; width: 140px; font-size: 0.9rem; }
.search-box input::placeholder { color: var(--text2); }
.search-box button { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 1.1rem; }
/* Banner */
.banner { min-height: 100vh; display: flex; align-items: center; justify-content: center; position: relative; padding-top: 80px; overflow: hidden; }
.banner-slide { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 1.2s ease; }
.banner-slide.active { opacity: 1; }
.banner-content { text-align: center; z-index: 2; padding: 40px 24px; max-width: 800px; }
.banner-content h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 900; margin-bottom: 24px; background: linear-gradient(135deg, var(--accent), #fff, var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.banner-content p { font-size: 1.2rem; color: var(--text2); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }
.banner-indicators { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; z-index: 5; }
.banner-indicators span { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.3); cursor: pointer; transition: var(--transition); }
.banner-indicators span.active { background: var(--accent); transform: scale(1.3); }
/* 通用section */
section { padding: 100px 0; position: relative; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; margin-bottom: 16px; }
.section-title p { color: var(--text2); max-width: 600px; margin: 0 auto; font-size: 1.05rem; }
/* 网格 */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
/* 数字增长 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .number { font-size: 3rem; font-weight: 900; color: var(--accent); display: block; }
.stat-item .label { color: var(--text2); margin-top: 8px; font-size: 1rem; }
/* 团队卡片 */
.team-card { text-align: center; padding: 32px 20px; }
.team-card svg { margin: 0 auto 16px; border-radius: 50%; }
.team-card h4 { font-size: 1.2rem; margin-bottom: 4px; }
.team-card .role { color: var(--accent); font-size: 0.9rem; }
/* FAQ */
.faq-item { border-bottom: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.faq-question { display: flex; justify-content: space-between; align-items: center; cursor: pointer; font-weight: 600; font-size: 1.1rem; }
.faq-question .icon { transition: var(--transition); font-size: 1.4rem; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.5s ease, padding 0.3s; padding: 0 20px 0 0; }
.faq-item.open .faq-answer { max-height: 400px; padding-top: 16px; }
.faq-answer p { color: var(--text2); line-height: 1.8; }
/* 文章卡片 */
.article-card { padding: 24px; }
.article-card h4 { font-size: 1.2rem; margin: 12px 0 8px; }
.article-card .meta { color: var(--text2); font-size: 0.85rem; }
.article-card p { color: var(--text2); margin: 8px 0; }
/* 合作伙伴滚动 */
.partner-scroll { overflow: hidden; white-space: nowrap; padding: 20px 0; }
.partner-track { display: inline-flex; gap: 48px; animation: scrollLeft 30s linear infinite; }
.partner-track svg { flex-shrink: 0; opacity: 0.6; transition: var(--transition); }
.partner-track svg:hover { opacity: 1; }
@keyframes scrollLeft { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
/* 面包屑 */
.breadcrumb { padding: 16px 0; font-size: 0.9rem; color: var(--text2); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--accent); }
.breadcrumb span { color: var(--text2); }
/* 页脚 */
footer { background: var(--primary); padding: 60px 0 30px; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-grid h5 { font-size: 1.1rem; margin-bottom: 20px; color: var(--accent); }
.footer-grid a { display: block; color: var(--text2); margin-bottom: 10px; font-size: 0.95rem; }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: var(--text2); }
/* 返回顶部 */
.back-top { position: fixed; bottom: 40px; right: 40px; width: 52px; height: 52px; border-radius: 50%; background: var(--accent); color: #1a1a2e; border: none; font-size: 1.5rem; cursor: pointer; box-shadow: 0 4px 20px rgba(240,192,64,0.3); transition: var(--transition); opacity: 0; visibility: hidden; transform: translateY(20px); z-index: 999; }
.back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { transform: scale(1.1); }
/* 响应式 */
@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { 
    .nav-links { display: none; flex-direction: column; background: var(--primary); position: absolute; top: 100%; left: 0; width: 100%; padding: 20px; gap: 16px; border-bottom: 1px solid rgba(255,255,255,0.05); }
    .nav-links.open { display: flex; }
    .mobile-menu-btn { display: block; }
    .search-box { display: none; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; }
    .banner-content h1 { font-size: 2rem; }
    .back-top { bottom: 20px; right: 20px; width: 44px; height: 44px; font-size: 1.2rem; }
}
/* 滚动动画初始 */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
/* 暗黑模式调整 */
.dark-mode .glass-card { border-color: rgba(0,0,0,0.08); }
.dark-mode .gradient-bg { background: linear-gradient(135deg, #f0f0f5, #e8e8f0); }
.dark-mode .gradient-bg::before { opacity: 0.3; }
/* 地图占位 */
.map-placeholder { width: 100%; height: 300px; border-radius: var(--radius); background: var(--glass); display: flex; align-items: center; justify-content: center; color: var(--text2); }