/* ============================================================
   用户端样式
   ============================================================ */

/* ---------- 顶部导航 ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.site-brand .logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #4f8ef7);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.site-nav {
  display: flex;
  gap: 4px;
}

.site-nav a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.site-nav a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.site-nav a.active {
  background: var(--primary-light);
  color: var(--primary);
}

/* ---------- 活动列表页 ---------- */
.index-hero {
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px 28px;
  margin-bottom: 24px;
}

.index-hero h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.index-hero p {
  opacity: 0.9;
  font-size: 14px;
}

/* 桌面端：主列表 + 右侧边栏，避免活动少时大面积留白 */
.index-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 20px;
  align-items: start;
}

.index-main {
  min-width: 0;
}

.index-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 76px;
}

.side-card {
  padding: 20px;
}

.side-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
}

.side-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 14px;
}

.side-card .steps {
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-secondary);
  display: grid;
  gap: 7px;
  line-height: 1.7;
}

.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.filter-chip {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: 13px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s;
}

.filter-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.activity-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.activity-card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  transition: transform 0.15s, box-shadow 0.15s;
}

.activity-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.activity-card .card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.activity-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.activity-card .meta {
  margin: 6px 0 14px;
  font-size: 13px;
  color: var(--text-secondary);
  display: grid;
  gap: 6px;
}

.activity-card .meta div {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.activity-card .meta .loc {
  white-space: normal;
}

.count-line {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 14px;
}

.count-line .num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
}

.count-line .cap {
  font-size: 13px;
  color: var(--text-secondary);
}

.card-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

/* ---------- 活动详情页 ---------- */
.detail-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: start;
}

/* 右侧报名表单：桌面端滚动时保持可见，左栏内容不再孤零零空着 */
.detail-side {
  position: sticky;
  top: 76px;
}

.detail-main {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.detail-main .card {
  padding: 24px;
}

.detail-title {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 4px;
}

.detail-sub {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
}

.content-block {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 15px;
  line-height: 1.8;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* 活动信息：2 列信息瓦片 */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.info-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #f9fafb;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.info-item .icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
}

.info-item .label {
  color: var(--text-secondary);
  font-size: 12px;
}

.info-item .value {
  font-weight: 600;
  word-break: break-all;
}

.big-count {
  text-align: center;
  padding: 18px 0;
}

.big-count .number {
  font-size: 44px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.big-count .caption {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 2px;
}

/* 手机端底部提交栏 */
.mobile-submit-bar {
  display: none;
}

/* ---------- 查询页 ---------- */
.query-box {
  max-width: 560px;
  margin: 0 auto;
}

.result-card {
  max-width: 560px;
  margin: 20px auto 0;
  padding: 24px;
}

/* ---------- 实时人数页 ---------- */
.live-page {
  min-height: calc(100vh - 60px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 12px;
  background: linear-gradient(180deg, #eaf1ff 0%, var(--bg) 300px);
}

.live-card {
  text-align: center;
  width: 100%;
  max-width: 900px;
  padding: 44px 48px 40px;
  border-radius: 20px;
}

.live-title {
  font-size: clamp(20px, 3.2vw, 32px);
  font-weight: 800;
  margin-bottom: 6px;
}

.live-sub {
  color: var(--text-secondary);
  font-size: clamp(13px, 1.6vw, 15px);
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.live-count-label {
  color: var(--text-secondary);
  font-size: clamp(13px, 1.8vw, 16px);
  margin-bottom: 4px;
}

.live-count-number {
  font-size: clamp(72px, 12vw, 150px);
  font-weight: 800;
  line-height: 1.05;
  background: linear-gradient(135deg, #1d4ed8, #3b82f6 55%, #60a5fa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 6px;
}

.live-count-ratio {
  font-size: clamp(18px, 2.6vw, 28px);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

/* 报名进度条 */
.live-progress {
  height: 12px;
  max-width: 480px;
  margin: 0 auto 30px;
  background: #e5e7eb;
  border-radius: 999px;
  overflow: hidden;
}

.live-progress-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #3b82f6, #2563eb);
  transition: width 0.6s ease;
}

.live-progress-fill.full {
  background: linear-gradient(90deg, #f87171, #dc2626);
}

.live-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 620px;
  margin: 0 auto;
}

.live-grid .cell {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 10px 16px;
}

.live-grid .cell .n {
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
}

.live-grid .cell .n.c-green { color: var(--success); }
.live-grid .cell .n.c-red { color: var(--danger); }
.live-grid .cell .n.c-blue { color: var(--primary); }
.live-grid .cell .n.c-purple { color: var(--purple); }
.live-grid .cell .n.c-gray { color: var(--gray); }

.live-grid .cell .t {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.live-countdown {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  background: #f1f5f9;
  border: 1px solid var(--border);
  font-size: clamp(14px, 2vw, 17px);
  color: var(--text-secondary);
}

.live-countdown b {
  color: var(--primary);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1023px) {
  /* 平板：隐藏右侧边栏，列表占满整行 */
  .index-layout {
    grid-template-columns: 1fr;
  }

  .index-side {
    display: none;
  }

  .activity-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-side {
    position: static;
  }
}

@media (max-width: 767px) {
  .site-header .container {
    height: 52px;
  }

  .site-brand {
    font-size: 16px;
  }

  .site-nav a {
    padding: 6px 10px;
    font-size: 13px;
  }

  .index-hero {
    padding: 20px 18px;
  }

  .index-hero h2 {
    font-size: 18px;
  }

  .activity-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .activity-card {
    padding: 16px;
  }

  .detail-main {
    gap: 14px;
  }

  .detail-main .card {
    padding: 16px;
  }

  .detail-title {
    font-size: 19px;
  }

  /* 手机端底部固定提交栏 */
  .mobile-submit-bar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    border-top: 1px solid var(--border);
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
    z-index: 500;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.06);
  }

  .mobile-submit-bar .bar-status {
    font-size: 13px;
    text-align: center;
    margin-bottom: 8px;
  }

  /* 详情页给底部栏留出空间 */
  body.has-submit-bar .page-main {
    padding-bottom: 110px;
  }

  .detail-layout {
    gap: 16px;
  }

  .live-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .live-card {
    padding: 24px 8px;
  }
}