:root {
  --bg: #0b1020;
  --bg2: #121a2e;
  --card: #1a2438;
  --card-hover: #1f2d45;
  --border: #2d3f5c;
  --text: #eef2f8;
  --muted: #8fa3be;
  --primary: #4f8cff;
  --primary-dim: rgba(79, 140, 255, 0.15);
  --success: #34d399;
  --danger: #f87171;
  --warn: #fbbf24;
  --hero: #7c3aed;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(79, 140, 255, 0.12), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(124, 58, 237, 0.08), transparent);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶栏：品牌在上，导航居中 */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.6rem 1.25rem 0.85rem;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}
.brand {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  background: linear-gradient(90deg, var(--primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
}
.user-meta { color: var(--muted); }
.user-balance {
  color: var(--success);
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  background: rgba(52, 211, 153, 0.12);
  border-radius: 6px;
}
.logout-link {
  color: var(--muted);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.logout-link:hover {
  color: var(--text);
  border-color: var(--primary);
  text-decoration: none;
}

.nav-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 0.5rem;
}
.nav-center a {
  color: var(--muted);
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  font-size: 0.92rem;
  white-space: nowrap;
  border: 1px solid transparent;
}
.nav-center a:hover,
.nav-center a.active {
  color: var(--text);
  background: var(--primary-dim);
  border-color: rgba(79, 140, 255, 0.35);
  text-decoration: none;
}

.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1.25rem 2.5rem; }

.page-hero { text-align: center; margin-bottom: 1.25rem; }
.page-title {
  margin: 0 0 0.35rem;
  font-size: 1.75rem;
  font-weight: 800;
}
.page-sub { margin: 0; color: var(--muted); font-size: 0.95rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}
.card h2, .card h3 { margin-top: 0; }
.card-balance { border-color: rgba(52, 211, 153, 0.25); }
.tip-warn { color: var(--warn); margin: 0.5rem 0 0; font-size: 0.9rem; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 768px) { .grid2 { grid-template-columns: 1fr; } }

label { display: block; margin: 0.5rem 0 0.25rem; color: var(--muted); font-size: 0.88rem; }
input, select, textarea {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg2);
  color: var(--text);
  font-size: 0.95rem;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}
textarea { min-height: 100px; resize: vertical; }

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.92rem;
  margin-top: 0.75rem;
  margin-right: 0.5rem;
  font-weight: 600;
  transition: transform 0.12s, filter 0.12s;
}
.btn:hover { filter: brightness(1.08); transform: translateY(-1px); }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.82rem; margin-top: 0; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #0b1020; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.flash-wrap { margin-bottom: 1rem; }
.flash {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
}
.flash.success { background: rgba(52, 211, 153, 0.2); border: 2px solid var(--success); color: #a7f3d0; }
.flash.danger { background: rgba(248, 113, 113, 0.2); border: 2px solid var(--danger); color: #fecaca; }
.flash.warning { background: rgba(251, 191, 36, 0.15); border: 2px solid var(--warn); color: #fde68a; }
.flash.info { background: var(--primary-dim); border: 1px solid var(--primary); }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  font-size: 0.78rem;
  background: #334155;
}
.badge.pending { background: #854d0e; }
.badge.processing { background: #1e40af; }
.badge.done { background: #166534; }

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 0.55rem 0.5rem; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-weight: 600; font-size: 0.82rem; }
.table-wrap { overflow-x: auto; }
.row-actions { white-space: nowrap; }
.panel-bulk { border-left: 4px solid var(--primary); }

.balance { font-size: 1.5rem; color: var(--success); font-weight: 800; }

.tiles-top { margin-top: 0; margin-bottom: 1.25rem; }
.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.tile {
  padding: 1.35rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  text-align: center;
  transition: transform 0.15s, box-shadow 0.15s;
}
.tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.tile a {
  color: var(--text);
  font-size: 1.12rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.35rem;
}
.tile p { margin: 0; color: var(--muted); font-size: 0.85rem; }
.tile-course {
  background: linear-gradient(145deg, rgba(79, 140, 255, 0.2), var(--card));
}
.tile-sport {
  background: linear-gradient(145deg, rgba(52, 211, 153, 0.15), var(--card));
}
.tile-orders {
  background: linear-gradient(145deg, rgba(251, 191, 36, 0.12), var(--card));
}

/* 公告面板 */
.ann-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 0.5rem;
}
@media (max-width: 768px) { .ann-grid { grid-template-columns: 1fr; } }

.ann-panel {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.ann-panel-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
}
.ann-panel-body {
  padding: 0.85rem 1rem 1rem;
  white-space: pre-wrap;
  font-size: 0.92rem;
  line-height: 1.65;
  background: var(--bg2);
  color: var(--text);
}
.ann-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.ann-hint { display: block; font-size: 0.78rem; color: var(--muted); font-weight: 400; margin-top: 2px; }

.ann-panel-hero {
  border-color: rgba(124, 58, 237, 0.45);
  background: linear-gradient(180deg, rgba(124, 58, 237, 0.12), var(--card));
}
.ann-panel-hero .ann-panel-head {
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.35), rgba(79, 140, 255, 0.2));
}
.ann-panel-hero .ann-icon {
  background: var(--hero);
  color: #fff;
}
.ann-panel-course .ann-panel-head { background: rgba(79, 140, 255, 0.2); }
.ann-panel-course .ann-icon-course { background: var(--primary); color: #fff; }
.ann-panel-sport .ann-panel-head { background: rgba(52, 211, 153, 0.15); }
.ann-panel-sport .ann-icon-sport { background: var(--success); color: #0b1020; }
.ann-panel-killer .ann-panel-head { background: rgba(251, 191, 36, 0.15); }
.ann-panel-killer .ann-icon { background: var(--warn); color: #0b1020; }

/* 兼容旧 ann-box */
.ann-box {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
  white-space: pre-wrap;
  line-height: 1.6;
}

.toolbar { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: flex-end; }
.toolbar label { font-size: 0.85rem; color: var(--muted); display: block; margin-bottom: 2px; }

.hidden { display: none !important; }

.auth-page {
  max-width: 440px;
  margin: 2rem auto 3rem;
}
.auth-brand { text-align: center; margin-bottom: 1.25rem; }
.auth-brand h1 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(90deg, var(--primary), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.auth-brand p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.auth-ann { margin-bottom: 1rem; }
.ann-panel-login .ann-panel-head { background: rgba(79, 140, 255, 0.18); }
.auth-wrap {
  max-width: 100%;
  margin: 0;
}
.auth-forgot {
  margin: 0.85rem 0 0;
  color: var(--warn);
  font-size: 0.9rem;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.65);
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.modal-overlay.is-open { display: flex; }
body.modal-open { overflow: hidden; }
.modal-box {
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1.15rem;
  background: linear-gradient(90deg, rgba(124, 58, 237, 0.35), rgba(79, 140, 255, 0.2));
  border-bottom: 1px solid var(--border);
}
.modal-header h2 { margin: 0; font-size: 1.05rem; }
.modal-close {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.25rem;
}
.modal-body {
  padding: 1rem 1.15rem;
  overflow-y: auto;
  white-space: pre-wrap;
  line-height: 1.65;
  font-size: 0.92rem;
}
.modal-footer {
  padding: 0.85rem 1.15rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.modal-check { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 0.4rem; cursor: pointer; }
.modal-footer .btn { margin-top: 0; }

h1 { font-size: 1.45rem; margin: 0 0 1rem; font-weight: 700; }