/* 基础重置与主题变量 */
:root {
  --bg: #0b1020;
  --card: #121833;
  --muted: #9aa4c7;
  --text: #e8ecff;
  --brand: #69e0ff;
  --brand-2: #4fc3f7;
  --border: #27305a;
  --accent: #ffd166;
  --success: #34d399;
  --danger: #ef4444;
  --focus: 0 0 0 3px rgba(79, 195, 247, 0.35);
  --radius: 12px;
  --shadow: 0 10px 30px rgba(9, 16, 36, 0.35);
}
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font: 16px/1.6 system-ui, -apple-system, "PingFang SC", "Microsoft Yahei",
    Segoe UI, Roboto, Helvetica, Arial, "Noto Sans CJK SC", sans-serif;
  color: var(--text);
  background: radial-gradient(
      1200px 600px at 80% -10%,
      rgba(79, 195, 247, 0.12),
      transparent 60%
    ),
    radial-gradient(
      800px 500px at 10% 10%,
      rgba(105, 224, 255, 0.1),
      transparent 60%
    ),
    linear-gradient(180deg, #080c1a 0%, #0b1020 100%);
  background-attachment: fixed;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--brand);
  text-decoration: none;
}
a:hover {
  color: #a3e9ff;
}

/* 布局 */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 16px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(8px);
  background: rgba(8, 12, 26, 0.6);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  color: #fff;
  letter-spacing: 0.2px;
}
.brand::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: conic-gradient(
    from 220deg,
    var(--brand),
    #a3e9ff 40%,
    #7cf5d2 70%,
    var(--brand)
  );
  box-shadow: 0 0 24px rgba(105, 224, 255, 0.55),
    inset 0 0 14px rgba(255, 255, 255, 0.25);
}
.nav {
  display: flex;
  gap: 8px;
}
.nav a {
  color: var(--text);
  opacity: 0.8;
  padding: 8px 12px;
  border-radius: 8px;
  transition: 0.2s ease;
}
.nav a:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.04);
}
.nav .active {
  opacity: 1;
  background: rgba(105, 224, 255, 0.12);
  color: #e8fbff;
  border: 1px solid rgba(105, 224, 255, 0.35);
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 24px 0;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.15);
}

/* 页面结构 */
.page-header {
  padding: 28px 0 12px;
}
.page-header h1 {
  margin: 0 0 6px;
  font-size: 28px;
  line-height: 1.25;
  letter-spacing: 0.2px;
}
.page-header p {
  margin: 0;
  color: var(--muted);
}

/* 卡片与分组 */
.card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.01)
  );
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin: 16px 0;
  box-shadow: var(--shadow);
}
.card h2 {
  margin: 0 0 12px;
  font-size: 20px;
}
.list,
.cards {
  display: grid;
  gap: 12px;
}
.empty {
  margin: 8px 0 0;
  color: var(--muted);
}

/* 表单 */
form {
  display: grid;
  gap: 12px;
}
.filters {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  align-items: end;
}
.form-row {
  display: grid;
  gap: 6px;
}
label {
  font-size: 14px;
  color: #cdd7ff;
}
input,
select,
button,
textarea {
  font: inherit;
  color: var(--text);
}
input[type="text"],
input[type="tel"],
input[type="search"],
select,
textarea {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  outline: none;
  transition: border 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
input::placeholder,
textarea::placeholder {
  color: #94a3b8;
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--brand-2);
  box-shadow: var(--focus);
  background: rgba(255, 255, 255, 0.06);
}
.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.form-status {
  margin-top: 4px;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: #eaf2ff;
  cursor: pointer;
  transition: 0.2s ease;
}
.btn:hover {
  background: rgba(255, 255, 255, 0.08);
}
.btn.primary {
  background: linear-gradient(180deg, #4fc3f7, #26a0da);
  border-color: rgba(79, 195, 247, 0.8);
  color: #062236;
  font-weight: 700;
}
.btn.primary:hover {
  filter: brightness(1.05);
}
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* 表格 */
.table-wrap {
  overflow: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}
table.table {
  width: 100%;
  border-collapse: collapse;
  min-width: 680px;
  background: rgba(0, 0, 0, 0.12);
}
.table th,
.table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.table thead th {
  position: sticky;
  top: 0;
  background: rgba(10, 15, 35, 0.8);
  backdrop-filter: blur(6px);
}
.table tbody tr:hover {
  background: rgba(255, 255, 255, 0.04);
}
.table td:nth-child(1) {
  width: 80px;
}
.table td:nth-child(5),
.table td:nth-child(6) {
  white-space: nowrap;
}

/* 网格与队伍展示 */
.teams-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.team-card {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: 0.15s ease;
}
.team-card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.06);
}
.team-logo {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.04)
  );
  border: 1px solid var(--border);
  font-weight: 800;
  color: #062236;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: #dbeafe;
}
.muted {
  color: var(--muted);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 详情侧栏 */
.team-detail {
  display: block;
  min-height: 120px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0.01)
  );
}
.member-list {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}
.member {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
}
.member .name {
  font-weight: 600;
}
.member .role {
  color: var(--muted);
}

/* 状态色 */
.tag-success {
  color: #022b1f;
  background: rgba(52, 211, 153, 0.2);
  border-color: rgba(52, 211, 153, 0.5);
}
.tag-warn {
  color: #3b2b02;
  background: rgba(255, 209, 102, 0.2);
  border-color: rgba(255, 209, 102, 0.5);
}
.tag-danger {
  color: #3b0a0a;
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.5);
}

/* 响应式 */
@media (max-width: 720px) {
  .site-header .container {
    height: 58px;
  }
  .page-header {
    padding: 18px 0 8px;
  }
  .card {
    padding: 14px;
  }
  .teams-grid {
    grid-template-columns: 1fr;
  }
  .nav {
    gap: 4px;
  }
  .brand {
    font-size: 18px;
  }
}