/* ================= 全局变量与基础设置 ================= */
:root {
  --bg-color: #000000;
  --card-bg: #0d0d0d;
  --brand-color: #a7f069;
  --border-color: rgba(255, 255, 255, 0.1);
  --text-main: #ffffff;
  --text-sub: rgba(255, 255, 255, 0.6);
  --transition-timing: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* 通用模块标题 */
.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 48px;
  text-align: center;
  position: relative;
}

.section-title span {
  color: var(--brand-color);
}

/* 通用网格与卡片（games、team 共用） */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.card {
  position: relative;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  box-sizing: border-box;
  cursor: pointer;
  z-index: 1;
  transition: transform var(--transition-timing), border-color 0.4s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background-color: var(--brand-color);
  filter: blur(24px);
  opacity: 0;
  z-index: -1;
  transition: opacity 0.4s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-color);
}

.card:hover::before {
  opacity: 0.15;
}

.card-title {
  font-size: 20px;
  margin: 0 0 12px 0;
}

.card-desc {
  color: var(--text-sub);
  font-size: 14px;
  margin: 0 0 24px 0;
}

/* ================= 主题按钮：炫彩光扫过 Hover 动效 ================= */
.btn-primary,
.game-card-btn:not(.game-card-btn--disabled) {
  position: relative;
  overflow: hidden;
}

.btn-primary::after,
.game-card-btn:not(.game-card-btn--disabled)::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -150%;
  width: 80%;
  height: 200%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    transparent 25%,
    rgba(255, 255, 255, 0.4) 38%,
    rgba(255, 255, 255, 0.85) 46%,
    rgba(200, 255, 150, 0.95) 50%,
    rgba(255, 255, 255, 0.85) 54%,
    rgba(255, 255, 255, 0.4) 62%,
    transparent 75%,
    transparent 100%
  );
  transform: skewX(-25deg);
  transition: left 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.btn-primary:hover::after,
.game-card-btn:not(.game-card-btn--disabled):hover::after {
  left: 150%;
}

/* 锚点滚动时避开固定导航栏 */
#games, #team, #contact {
  scroll-margin-top: 100px;
  /* 窗体透明度 可以看到背景的粒子效果 */
  opacity: 0.85;
}

/* 粒子 Canvas 全局样式 */
#particleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  opacity: 0.6;
  pointer-events: none;
}