/* 入场动画基础状态 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
              transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 从左滑入 */
.reveal-left {
  opacity: 0;
  transform: translateX(-48px);
  transition: opacity 0.75s cubic-bezier(0.4,0,0.2,1),
              transform 0.75s cubic-bezier(0.4,0,0.2,1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }

/* 从右滑入 */
.reveal-right {
  opacity: 0;
  transform: translateX(48px);
  transition: opacity 0.75s cubic-bezier(0.4,0,0.2,1),
              transform 0.75s cubic-bezier(0.4,0,0.2,1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* 缩放淡入 */
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1),
              transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* 下载区块 */
.download-section {
  padding: 72px 0;
  text-align: center;
  position: relative;
}
.download-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(240,184,72,0.10) 0%, rgba(224,144,88,0.06) 100%);
  border-radius: var(--radius);
  padding: 48px 64px;
  max-width: 600px;
  width: 100%;
}
.download-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  background: rgba(240,184,72,0.12);
  color: var(--primary-dark);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.download-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
}
.download-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 300;
  max-width: 380px;
  line-height: 1.8;
}
.download-btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

/* 服务器信息条 */
.server-info-bar {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  padding: 32px 0;
  border-top: 1px solid rgba(240,184,72,0.12);
  border-bottom: 1px solid rgba(240,184,72,0.12);
  margin: 0 0 80px;
}
.info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.info-item .info-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
}
.info-item .info-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 300;
  letter-spacing: 0.04em;
}

/* 玩法介绍页 */
.gameplay-hero {
  padding: 140px 0 80px;
  text-align: center;
}
.gameplay-intro {
  max-width: 720px;
  margin: 0 auto 64px;
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 2;
  font-weight: 300;
}

/* 关于我们页 */
.about-hero {
  padding: 140px 0 80px;
  text-align: center;
}
.timeline {
  position: relative;
  max-width: 700px;
  margin: 0 auto;
  padding-left: 32px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 24px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-date {
  font-size: 0.8rem;
  color: var(--primary-dark);
  font-weight: 500;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.timeline-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.8;
}

/* 团队卡片 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 48px;
}
.team-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px 20px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.team-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 3px solid var(--primary-light);
}
.team-name {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.team-role {
  font-size: 0.8rem;
  color: var(--primary-dark);
  font-weight: 400;
  margin-bottom: 10px;
}
.team-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.7;
  font-weight: 300;
}

/* 联系 & 赞助 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.contact-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}
.contact-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}
.contact-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}

/* 卫星云图页 */
.map-page {
  padding-top: 68px;
  height: 100vh;
  display: flex;
  flex-direction: column;
}
.map-header {
  padding: 24px 0 16px;
  text-align: center;
  flex-shrink: 0;
}
.map-frame-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}
.map-frame-wrap iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* 赞助区 */
.sponsor-tiers {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 40px;
}
.sponsor-tier {
  flex: 1;
  min-width: 200px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  text-align: center;
}
.sponsor-tier-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary-dark);
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}
.sponsor-tier-price {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}
.sponsor-tier-price span {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted);
}
.sponsor-tier ul {
  text-align: left;
  font-size: 0.85rem;
  color: var(--text-light);
  line-height: 2;
}
.sponsor-tier ul li::before {
  content: '✓ ';
  color: var(--primary);
  font-weight: 600;
}

@media (max-width: 600px) {
  .download-card { padding: 32px 20px; }
  .server-info-bar { gap: 24px; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .map-page { height: 100svh; }
}