/* ============================================================
   Check反作弊 · check.188game.cn
   深色安全指挥中心风格 —— 全站共享样式
   ============================================================ */

:root {
  --bg: #070b14;
  --bg-2: #0a1120;
  --panel: rgba(13, 21, 38, 0.72);
  --panel-solid: #0d1526;
  --line: rgba(34, 211, 238, 0.16);
  --line-strong: rgba(34, 211, 238, 0.35);
  --cyan: #22d3ee;
  --cyan-dim: #0e7490;
  --lime: #a3e635;
  --text: #dbe7f5;
  --text-dim: #8aa0bb;
  --text-faint: #5b6f8a;
  --danger: #f87171;
  --warn: #fbbf24;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, "Courier New", monospace;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --radius: 14px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 全局网格背景 + 光晕 ---------- */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(34, 211, 238, 0.12), transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 110%, rgba(163, 230, 53, 0.05), transparent 60%),
    var(--bg);
}
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.045) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 40%, transparent 100%);
  pointer-events: none;
}

::selection { background: rgba(34, 211, 238, 0.35); color: #fff; }

a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--lime); }

img { max-width: 100%; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(7, 11, 20, 0.78);
  border-bottom: 1px solid var(--line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 40px; width: auto; }
.brand .domain {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.5px;
  border-left: 1px solid var(--line);
  padding-left: 12px;
  line-height: 1.4;
}
.brand .domain b { color: var(--cyan); font-weight: 600; display: block; }

.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav-links a {
  color: var(--text-dim);
  font-size: 14.5px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: all .2s;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text); background: rgba(34, 211, 238, 0.08); }
.nav-links a.active {
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.1);
  border-color: var(--line-strong);
}
.nav-links a .tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  margin-left: 4px;
}
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 110px 0 90px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero .container { position: relative; z-index: 2; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 60px;
  align-items: center;
}
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--lime);
  border: 1px solid rgba(163, 230, 53, 0.35);
  background: rgba(163, 230, 53, 0.07);
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 28px;
  letter-spacing: 1px;
}
.hero-status .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 10px var(--lime);
  animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero h4.welcome {
  font-family: var(--mono);
  color: var(--cyan);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 22px;
  background: linear-gradient(100deg, #fff 20%, var(--cyan) 60%, var(--lime) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

.hero-audio {
  margin-top: 34px;
  max-width: 420px;
}
.hero-audio audio { width: 100%; height: 38px; }
.hero-audio .audio-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

/* 雷达 */
.radar-box { display: flex; justify-content: center; }
.radar {
  position: relative;
  width: min(340px, 80vw);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle, rgba(34, 211, 238, 0.06) 0%, transparent 70%);
}
.radar::before, .radar::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--line);
}
.radar::before { inset: 18%; }
.radar::after { inset: 38%; }
.radar .cross-h, .radar .cross-v {
  position: absolute;
  background: var(--line);
}
.radar .cross-h { left: 4%; right: 4%; top: 50%; height: 1px; }
.radar .cross-v { top: 4%; bottom: 4%; left: 50%; width: 1px; }
.radar .sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(34, 211, 238, 0.55), transparent 70deg, transparent 360deg);
  animation: sweep 4s linear infinite;
  mask-image: radial-gradient(circle, #000 0%, #000 100%);
  -webkit-mask-image: radial-gradient(circle, #000 0%, #000 100%);
}
@keyframes sweep { to { transform: rotate(360deg); } }
.radar .blip {
  position: absolute;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 12px var(--lime);
  animation: blipfade 4s infinite;
}
.radar .blip.b1 { top: 26%; left: 62%; animation-delay: 0.8s; }
.radar .blip.b2 { top: 58%; left: 34%; animation-delay: 2.4s; }
.radar .blip.b3 { top: 70%; left: 66%; animation-delay: 3.2s; }
@keyframes blipfade { 0%,100% { opacity: 0; } 10%, 30% { opacity: 1; } }
.radar .ring-label {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 2px;
  white-space: nowrap;
}

/* 扫描光束（hero 底部） */
.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: -10%;
  width: 120%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.7;
  animation: beam 6s ease-in-out infinite;
}
@keyframes beam { 0%,100% { transform: translateX(-30%); } 50% { transform: translateX(30%); } }

/* ---------- 数据带 ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin: -46px auto 0;
  position: relative;
  z-index: 5;
  max-width: var(--maxw);
}
.stat-cell {
  background: rgba(10, 17, 32, 0.94);
  padding: 24px 16px;
  text-align: center;
  backdrop-filter: blur(8px);
}
.stat-cell .num {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.2;
}
.stat-cell .num .plus { color: var(--lime); }
.stat-cell .label { font-size: 12.5px; color: var(--text-dim); margin-top: 6px; }

/* ---------- 区块通用 ---------- */
.section { padding: 96px 0; position: relative; }
.section.alt { background: rgba(10, 17, 32, 0.5); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.sec-tag {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 3px;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 14px;
}
.sec-tag::before { content: "// "; color: var(--text-faint); }
.sec-head h2 {
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: #fff;
}
.sec-head p { color: var(--text-dim); font-size: 15.5px; }

/* ---------- 卡片 ---------- */
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 38px 30px;
  position: relative;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 80%);
  opacity: 0;
  transition: opacity .25s;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(34, 211, 238, 0.08);
}
.card:hover::before { opacity: 1; }
.card .icon {
  width: 54px; height: 54px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid var(--line-strong);
  color: var(--cyan);
}
.card .icon svg { width: 26px; height: 26px; }
.card h3 { color: #fff; font-size: 20px; margin-bottom: 14px; letter-spacing: 0.5px; }
.card p { color: var(--text-dim); font-size: 14.5px; }
.card .idx {
  position: absolute;
  top: 22px; right: 26px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all .22s;
  border: 1px solid transparent;
  font-family: var(--sans);
}
.btn-primary {
  background: linear-gradient(120deg, var(--cyan-dim), var(--cyan));
  color: #051018;
  box-shadow: 0 6px 22px rgba(34, 211, 238, 0.28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(34, 211, 238, 0.4); color: #051018; }
.btn-ghost {
  background: transparent;
  color: var(--cyan);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: rgba(34, 211, 238, 0.09); color: var(--lime); }
.btn-lg { padding: 15px 34px; font-size: 16px; }

/* ---------- 关于（图文两栏） ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  position: relative;
}
.about-media video, .about-media img { display: block; width: 100%; }
.about-media .corner {
  position: absolute;
  width: 22px; height: 22px;
  border-color: var(--cyan);
  border-style: solid;
  opacity: 0.8;
}
.about-media .corner.tl { top: 10px; left: 10px; border-width: 2px 0 0 2px; border-radius: 4px 0 0 0; }
.about-media .corner.br { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; border-radius: 0 0 4px 0; }
.about-content h2 { color: #fff; font-size: 30px; margin-bottom: 22px; letter-spacing: 1px; }
.about-content p { color: var(--text-dim); font-size: 15px; margin-bottom: 14px; }
.about-content .btn { margin-top: 14px; }

/* ---------- 介绍轮播（引述） ---------- */
.quote-wrap { max-width: 860px; margin: 0 auto; }
.quote-nav { display: flex; justify-content: center; gap: 10px; margin-bottom: 34px; }
.quote-nav button {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 20px;
  cursor: pointer;
  transition: all .2s;
  letter-spacing: 1px;
}
.quote-nav button.on {
  color: var(--cyan);
  border-color: var(--line-strong);
  background: rgba(34, 211, 238, 0.1);
}
.quote-panel { display: none; }
.quote-panel.on { display: block; animation: fadeUp .45s ease; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.quote-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 44px 48px;
  position: relative;
}
.quote-panel::before {
  content: "❝";
  position: absolute;
  top: 18px; left: 26px;
  font-size: 42px;
  color: var(--cyan);
  opacity: 0.35;
  font-family: serif;
}
.quote-panel h3 { color: var(--cyan); font-size: 20px; margin-bottom: 20px; letter-spacing: 1px; }
.quote-panel p { color: var(--text); font-size: 15px; margin-bottom: 10px; }

/* ---------- 使命 tabs ---------- */
.mission-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}
.mission-media img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: block;
}
.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.tabs button {
  font-family: var(--sans);
  font-size: 14.5px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 22px;
  cursor: pointer;
  transition: all .2s;
}
.tabs button.on {
  color: #051018;
  background: var(--cyan);
  border-color: var(--cyan);
  font-weight: 600;
}
.tab-pane { display: none; }
.tab-pane.on { display: block; animation: fadeUp .4s ease; }
.tab-pane p { color: var(--text-dim); font-size: 15px; margin-bottom: 12px; padding-left: 16px; border-left: 2px solid var(--line-strong); }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: #050810;
  padding: 30px 0 0;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 30%;
  width: 40%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 0.7fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-grid h4 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-grid h4::after {
  content: "";
  display: block;
  width: 26px; height: 2px;
  background: var(--cyan);
  margin-top: 10px;
}
.footer-grid p, .footer-grid li { color: var(--text-dim); font-size: 13.5px; }
.footer-grid ul { list-style: none; }
.footer-grid ul li { margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-logo img { height: 44px; margin-bottom: 18px; }
.footer-qr img { width: 150px; border-radius: 10px; border: 1px solid var(--line); display: block; }
.footer-qr .qr-tip { font-size: 12px; color: var(--text-faint); margin-top: 10px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(34, 211, 238, 0.1);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-bottom .fb-item { font-family: var(--mono); font-size: 12px; color: var(--text-faint); letter-spacing: 0.5px; }
.footer-bottom .fb-item b { color: var(--text-dim); font-weight: 500; }

/* ---------- 通用工具 ---------- */
.mono { font-family: var(--mono); }
.text-lime { color: var(--lime); }
.text-cyan { color: var(--cyan); }
.text-dim { color: var(--text-dim); }
.text-danger { color: var(--danger); }
.text-warn { color: var(--warn); }

.page-hero {
  padding: 88px 0 60px;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.page-hero h1 {
  font-size: clamp(30px, 4.5vw, 44px);
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.page-hero .crumb { font-family: var(--mono); font-size: 12.5px; color: var(--text-faint); letter-spacing: 1px; }
.page-hero .crumb b { color: var(--cyan); font-weight: 500; }
.page-hero p.lead { color: var(--text-dim); max-width: 720px; margin-top: 14px; }

.notice-box {
  border: 1px solid rgba(251, 191, 36, 0.3);
  background: rgba(251, 191, 36, 0.06);
  border-radius: var(--radius);
  padding: 26px 30px;
  margin-bottom: 40px;
}
.notice-box p { font-size: 14px; color: var(--text-dim); margin-bottom: 8px; }
.notice-box p:last-child { margin-bottom: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .radar-box { order: -1; }
  .radar { width: min(240px, 70vw); }
  .cards-3 { grid-template-columns: 1fr; }
  .stats-band { grid-template-columns: repeat(2, 1fr); margin-top: 24px; }
  .about-grid, .mission-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .site-header .container { height: 60px; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px; height: 40px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 8px;
    cursor: pointer;
    padding: 10px 9px;
  }
  .nav-toggle span {
    display: block;
    height: 2px;
    background: var(--cyan);
    border-radius: 2px;
    transition: all .25s;
  }
  .site-header.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .site-header.open .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-header.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-header.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(7, 11, 20, 0.97);
    border-bottom: 1px solid var(--line);
    padding: 14px 24px 20px;
    align-items: stretch;
    gap: 6px;
    backdrop-filter: blur(16px);
  }
  .quote-panel { padding: 34px 26px; }
  .section { padding: 72px 0; }
}
@media (max-width: 640px) {
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .brand .domain { display: none; }
}