/* ============================================================
   电竞馆官网 全局样式
   风格: 深空蓝黑 + 亮青科技感 (电竞风)
   说明: 占位框架版, 文案/图片待替换
   ============================================================ */
:root {
  --bg-deep: #070b16;
  --bg-body: #0a0f1e;
  --bg-card: #101731;
  --bg-card-hover: #16203f;
  --line: rgba(148, 163, 184, 0.16);
  --text-main: #e6ecff;
  --text-sub: #9aa7c7;
  --text-dim: #6b7796;
  --accent: #22d3ee;
  --accent-2: #38bdf8;
  --accent-purple: #8b5cf6;
  --danger: #f87171;
  --ok: #34d399;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #7de8f8; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(7, 11, 22, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  max-width: var(--maxw); margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; letter-spacing: 1px; }
.brand .logo-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-purple));
  display: grid; place-items: center; font-size: 18px; color: #04121d;
}
.brand span { background: linear-gradient(90deg, var(--accent), var(--accent-purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 4px; }
.nav-links a {
  color: var(--text-sub); padding: 8px 14px; border-radius: 8px; font-size: 14.5px;
  transition: all 0.2s;
}
.nav-links a:hover { color: var(--text-main); background: rgba(34, 211, 238, 0.08); }
.nav-links a.active { color: var(--accent); background: rgba(34, 211, 238, 0.12); }
.nav-cta {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #04121d !important; font-weight: 700; padding: 8px 18px; border-radius: 8px;
}
.nav-cta:hover { filter: brightness(1.1); }
.menu-toggle { display: none; background: none; border: 0; color: var(--text-main); font-size: 22px; cursor: pointer; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 96px 0 88px;
  background:
    radial-gradient(1000px 420px at 80% -10%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(800px 380px at 10% 10%, rgba(34, 211, 238, 0.16), transparent 55%),
    var(--bg-deep);
  text-align: center;
}
.hero .tagline {
  display: inline-block; padding: 6px 16px; border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.4); color: var(--accent);
  font-size: 13px; letter-spacing: 2px; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(34px, 6vw, 58px); font-weight: 900; line-height: 1.2; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--accent), var(--accent-purple)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { color: var(--text-sub); max-width: 640px; margin: 20px auto 34px; font-size: 16.5px; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 10px;
  font-size: 15px; font-weight: 700; cursor: pointer; border: 0;
  transition: all 0.2s;
}
.btn-primary { background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #04121d; }
.btn-primary:hover { filter: brightness(1.12); color: #04121d; }
.btn-ghost { background: transparent; color: var(--text-main); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(248, 113, 113, 0.12); color: var(--danger); border: 1px solid rgba(248, 113, 113, 0.4); }

/* ---------- 区块通用 ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--bg-deep); }
.sec-head { text-align: center; max-width: 680px; margin: 0 auto 44px; }
.sec-head .kicker { color: var(--accent); font-size: 13px; letter-spacing: 3px; text-transform: uppercase; }
.sec-head h2 { font-size: 30px; font-weight: 800; margin: 10px 0 12px; }
.sec-head p { color: var(--text-sub); }

/* ---------- 卡片网格 ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px; transition: all 0.25s;
}
.card:hover { transform: translateY(-4px); background: var(--bg-card-hover); border-color: rgba(34, 211, 238, 0.4); }
.card h3 { font-size: 18px; margin-bottom: 8px; }
.card p { color: var(--text-sub); font-size: 14.5px; }

.feature-icon {
  width: 46px; height: 46px; border-radius: 12px; margin-bottom: 16px;
  background: rgba(34, 211, 238, 0.12); color: var(--accent);
  display: grid; place-items: center; font-size: 22px;
}

/* ---------- 场馆卡片 ---------- */
.venue-card .venue-thumb {
  height: 160px; border-radius: 10px; margin-bottom: 14px;
  background: linear-gradient(135deg, #14203f, #0d1328);
  display: grid; place-items: center; font-size: 40px; color: var(--accent);
}
.venue-card .tag { font-size: 12.5px; color: var(--text-dim); }

/* ---------- 硬件表 ---------- */
.spec-table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.spec-table th, .spec-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.spec-table th { color: var(--text-dim); font-weight: 600; width: 120px; }
.tier-badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 700;
  background: rgba(139, 92, 246, 0.15); color: #c4b5fd; border: 1px solid rgba(139, 92, 246, 0.35);
}

/* ---------- 套餐 ---------- */
.filter-tabs { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 34px; }
.filter-tabs button {
  padding: 8px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: transparent; color: var(--text-sub); cursor: pointer; font-size: 14px; transition: all 0.2s;
}
.filter-tabs button.active { background: rgba(34, 211, 238, 0.12); color: var(--accent); border-color: var(--accent); }
.plan-card { display: flex; flex-direction: column; }
.plan-price { font-size: 34px; font-weight: 900; color: var(--accent); margin: 6px 0 2px; }
.plan-price small { font-size: 14px; color: var(--text-sub); font-weight: 500; }
.plan-meta { color: var(--text-dim); font-size: 13.5px; margin-bottom: 12px; }
.plan-list { list-style: none; margin: 10px 0 18px; }
.plan-list li { padding: 5px 0 5px 22px; position: relative; color: var(--text-sub); font-size: 14px; }
.plan-list li::before { content: "✔"; position: absolute; left: 0; color: var(--accent); font-size: 13px; }
.plan-featured { border-color: rgba(34, 211, 238, 0.55); box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.2), var(--shadow); }

/* ---------- 活动 ---------- */
.event-item {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px; margin-bottom: 16px; cursor: pointer; transition: all 0.2s;
}
.event-item:hover { border-color: rgba(34, 211, 238, 0.4); }
.event-item .ev-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.event-item h3 { font-size: 17px; }
.event-item .ev-date { color: var(--text-dim); font-size: 13px; white-space: nowrap; }
.event-item .ev-summary { color: var(--text-sub); font-size: 14.5px; margin-top: 6px; }
.event-item .ev-body { display: none; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); color: var(--text-sub); font-size: 14.5px; white-space: pre-line; }
.event-item.open .ev-body { display: block; }
.empty-tip { text-align: center; color: var(--text-dim); padding: 40px 0; }

/* ---------- 联系页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: start; }
.info-row { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.info-row .ico { width: 40px; height: 40px; border-radius: 10px; background: rgba(34, 211, 238, 0.1); color: var(--accent); display: grid; place-items: center; font-size: 18px; flex-shrink: 0; }
.info-row h4 { font-size: 15px; }
.info-row p { color: var(--text-sub); font-size: 14px; }
.map-box {
  height: 320px; border-radius: var(--radius); border: 1px solid var(--line);
  background: repeating-linear-gradient(45deg, #0e1428, #0e1428 14px, #0c1122 14px, #0c1122 28px);
  display: grid; place-items: center; color: var(--text-dim); font-size: 15px;
}

/* ---------- 预约表单 ---------- */
.form-card { max-width: 620px; margin: 0 auto; background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.form-row { margin-bottom: 20px; }
.form-row label { display: block; color: var(--text-sub); font-size: 14px; margin-bottom: 8px; }
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: var(--bg-deep); border: 1px solid var(--line); color: var(--text-main);
  font-size: 14.5px; font-family: inherit; outline: none; transition: border-color 0.2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--accent); }
.form-row textarea { resize: vertical; min-height: 90px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-msg { margin-top: 14px; padding: 12px 16px; border-radius: 10px; font-size: 14.5px; display: none; }
.form-msg.ok { display: block; background: rgba(52, 211, 153, 0.1); color: var(--ok); border: 1px solid rgba(52, 211, 153, 0.35); }
.form-msg.err { display: block; background: rgba(248, 113, 113, 0.1); color: var(--danger); border: 1px solid rgba(248, 113, 113, 0.35); }

/* ---------- 页脚 ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 40px 0 30px; margin-top: 40px; background: var(--bg-deep); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
.site-footer h4 { font-size: 15px; margin-bottom: 12px; }
.site-footer p, .site-footer li { color: var(--text-sub); font-size: 13.5px; }
.site-footer ul { list-style: none; }
.site-footer li { padding: 4px 0; }
.copyright { text-align: center; color: var(--text-dim); font-size: 13px; margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); }

/* ---------- 加载与提示 ---------- */
.loading { text-align: center; color: var(--text-dim); padding: 40px 0; }
.loading::after { content: "..."; animation: dots 1.2s infinite; }
@keyframes dots { 0% { content: ""; } 33% { content: "."; } 66% { content: ".."; } 100% { content: "..."; } }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 20px; }
  .menu-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: rgba(7, 11, 22, 0.98); flex-direction: column; padding: 12px 20px 18px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
}