/* ============================================
   卡盟平台 - 现代化响应式样式
   ============================================ */
:root {
  --primary: #6d5dfc;
  --primary-dark: #5a4ae3;
  --accent: #22d3ee;
  --bg: #0f1226;
  --bg-alt: #171a33;
  --card: #1e2242;
  --card-border: #2c3060;
  --text: #f1f2ff;
  --text-muted: #a9adce;
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
img { max-width: 100%; }

/* 公告条 */
.topbar {
  background: linear-gradient(90deg, var(--primary-dark), var(--primary));
  color: #fff; font-size: 13px;
}
.topbar .container { display: flex; align-items: center; gap: 10px; height: 38px; overflow: hidden; }
.topbar-label {
  background: rgba(255, 255, 255, .22); border-radius: 4px;
  padding: 1px 8px; font-weight: 700; flex-shrink: 0;
}
.notice-text {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  flex: 1 1 auto; min-width: 0;
}

/* 脉冲按钮（参考站同款动效） */
.pulse-btn { position: relative; animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34, 211, 238, .55); }
  70%  { box-shadow: 0 0 0 14px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}
.pulse-btn:hover { animation-play-state: paused; transform: translateY(-2px) scale(1.03); }

/* 可点击卡片 */
.card-link {
  display: block; text-decoration: none; color: inherit; position: relative;
}
.card-link .card-cta {
  display: inline-block; margin-top: 12px; color: var(--accent);
  font-size: 13px; font-weight: 600;
}
.card-link:hover .card-cta { color: #fff; }
.link-btn {
  background: rgba(34, 211, 238, .12); border: 1px solid var(--accent);
  color: var(--accent); border-radius: 6px; padding: 1px 10px;
  font-size: 12px; cursor: pointer; margin-left: 6px;
}
.link-btn:hover { background: var(--accent); color: #0f1226; }

/* 步骤卡片 */
.step-card { text-align: center; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-weight: 800; font-size: 18px; margin-bottom: 6px;
}

/* 简介区 */
.intro-box {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 32px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 32px; margin-top: 24px;
}
.intro-box h3 { font-size: 20px; margin-bottom: 12px; }
.intro-box > * { min-width: 0; }
.intro-box p { color: var(--text-muted); font-size: 15px; margin-bottom: 14px; }
.intro-box strong { color: var(--text); }
.intro-box .btn { margin-top: 6px; }
.intro-points ul { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.intro-points li {
  background: var(--bg-alt); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 16px; text-align: center;
}
.intro-points b {
  display: block; font-size: 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.intro-points span { font-size: 13px; color: var(--text-muted); }

/* 副标题里的分隔符 */
.sep { color: var(--accent); }
.sub { display: block; font-size: 14px; font-weight: 400; color: var(--text-muted); margin-top: 8px; }
.hero-sub-line { color: var(--text-muted); font-size: 14px; margin-bottom: 16px; }

/* 悬浮客服 + 回到顶部 */
.float-actions {
  position: fixed; right: 16px; bottom: 96px; z-index: 90;
  display: flex; flex-direction: column; gap: 10px;
}
.float-btn {
  display: flex; align-items: center; gap: 6px;
  background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); border-radius: 999px; padding: 9px 14px;
  font-size: 13px; cursor: pointer; text-decoration: none;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .35);
  transition: transform .15s, background .2s;
}
.float-btn:hover { transform: translateX(-4px); background: var(--primary); }
.float-icon { font-size: 16px; }
.float-top { padding: 9px 12px; }

/* 移动端底部下单条 */
.mobile-bar {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 95;
  display: none; gap: 10px; padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  background: rgba(15, 18, 38, .96); border-top: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
}
.mb-item {
  flex: 1; text-align: center; text-decoration: none; color: var(--text);
  border: 1px solid var(--card-border); border-radius: 999px;
  padding: 10px 0; font-size: 15px; font-weight: 600;
}
.mb-primary {
  flex: 1.6; border: none; color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 4px 16px rgba(109, 93, 252, .4);
}

/* 头部 */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(15, 18, 38, .9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; color: var(--text); font-size: 20px; }
.logo strong { color: var(--accent); }
.nav { display: flex; gap: 20px; margin-left: auto; }
.nav a { color: var(--text-muted); text-decoration: none; font-size: 15px; transition: color .2s; }
.nav a:hover, .nav a.active { color: var(--text); }
.menu-toggle { display: none; background: none; border: none; color: var(--text); font-size: 24px; cursor: pointer; }

/* 按钮 */
.btn {
  display: inline-block; padding: 12px 28px; border-radius: 999px;
  text-decoration: none; font-weight: 600; font-size: 15px;
  transition: transform .15s, box-shadow .15s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; box-shadow: 0 6px 20px rgba(109, 93, 252, .35);
}
.btn-ghost { border: 1px solid var(--card-border); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

/* 英雄区 */
.hero {
  padding: 80px 0 60px;
  background:
    radial-gradient(600px 300px at 20% 10%, rgba(109, 93, 252, .25), transparent),
    radial-gradient(500px 260px at 85% 20%, rgba(34, 211, 238, .18), transparent),
    var(--bg);
}
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.hero-tag { color: var(--accent); font-weight: 600; margin-bottom: 12px; }
.hero h1 { font-size: 40px; line-height: 1.3; margin-bottom: 18px; }
.hero-text { min-width: 0; }
.hero-desc { color: var(--text-muted); font-size: 17px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px 18px; list-style: none; color: var(--text-muted); font-size: 14px; }
.hero-stats {
  min-width: 0;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px;
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 24px;
}
.hero-visual { min-width: 0; }
.hero-visual img {
  display: block; width: 100%; height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  box-shadow: 0 18px 48px rgba(0, 0, 0, .38);
}
.hero-side { min-width: 0; display: grid; gap: 20px; }
.stat { text-align: center; padding: 12px 0; }
.stat b { display: block; font-size: 28px; background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--text-muted); font-size: 13px; }
.hero-sub { padding: 60px 0; text-align: center; }
.hero-sub h1 { font-size: 32px; }
.hero-sub p { color: var(--text-muted); margin-top: 10px; }

/* 区块 */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-tag { color: var(--accent); font-weight: 600; font-size: 14px; letter-spacing: 1px; }
.section h2 { font-size: 30px; margin: 8px 0 12px; }
.section-desc { color: var(--text-muted); margin-bottom: 36px; }
.section .grid { margin-top: 28px; }
h2 + .grid { margin-top: 20px; }

/* 卡片 */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 24px;
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); border-color: var(--primary); }
.card h3 { font-size: 17px; margin: 10px 0 8px; }
.card p { color: var(--text-muted); font-size: 14px; }
.card-icon { font-size: 30px; }
.num-card { position: relative; }
.num {
  position: absolute; top: 16px; right: 20px; font-size: 30px; font-weight: 800;
  color: rgba(109, 93, 252, .25);
}
.game-card { background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius); padding: 28px; }
.game-card h3 { font-size: 22px; margin-bottom: 10px; }
.game-card p { color: var(--text-muted); margin-bottom: 14px; }
.link { color: var(--accent); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }

/* 合作伙伴 */
.partner-list { display: flex; flex-wrap: wrap; gap: 14px; list-style: none; margin-top: 24px; }
.partner-list li {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 999px; padding: 10px 24px; color: var(--text-muted); font-size: 14px;
}

/* FAQ */
.faq-list { display: grid; gap: 12px; margin: 24px 0 28px; }
.faq-item {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 16px 22px;
}
.faq-item summary { cursor: pointer; font-weight: 600; font-size: 16px; }
.faq-item p { color: var(--text-muted); margin-top: 10px; font-size: 15px; }

/* CTA */
.section-cta {
  background:
    radial-gradient(500px 260px at 50% 0%, rgba(109, 93, 252, .3), transparent),
    var(--bg-alt);
  text-align: center;
}
.cta-box {
  display: inline-block; background: var(--card); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 20px 36px; margin: 24px 0 28px;
}
.cta-box b { color: var(--accent); }

/* 时间线 */
.timeline { list-style: none; margin-top: 20px; border-left: 2px solid var(--card-border); padding-left: 24px; }
.timeline li { position: relative; padding: 8px 0; color: var(--text-muted); }
.timeline li b { color: var(--text); }
.timeline li::before {
  content: ""; position: absolute; left: -31px; top: 18px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary);
}

/* 页脚 */
.site-footer { border-top: 1px solid var(--card-border); background: var(--bg); padding: 48px 0 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer-inner p { color: var(--text-muted); font-size: 14px; max-width: 420px; margin-top: 8px; }
.footer-inner nav { display: flex; flex-direction: column; gap: 10px; }
.footer-inner nav a { color: var(--text-muted); text-decoration: none; font-size: 14px; }
.footer-inner nav a:hover { color: var(--accent); }
.copyright { border-top: 1px solid var(--card-border); margin-top: 32px; padding: 18px 20px; }
.copyright p { color: var(--text-muted); font-size: 13px; text-align: center; }

/* 响应式 */
@media (max-width: 992px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
  .hero h1 { font-size: 32px; }
  .grid-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .intro-box { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  body { padding-bottom: 68px; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--bg-alt); flex-direction: column; padding: 18px 24px;
    border-bottom: 1px solid var(--card-border);
  }
  .nav.open { display: flex; }
  .menu-toggle { display: block; margin-left: auto; }
  .header-inner .btn-sm { display: none; }
  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 26px; }
  .grid-2, .grid-3, .grid-4, .grid-6 { grid-template-columns: minmax(0, 1fr); }
  .section { padding: 48px 0; }
  .section h2 { font-size: 24px; }
  .mobile-bar { display: flex; }
  .float-actions { bottom: 130px; right: 10px; }
  .float-text { display: none; }
  .float-btn { padding: 9px 11px; }
  .intro-box { padding: 22px; }
  .intro-points ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-inner { flex-direction: column; gap: 24px; }
}