/* ============ 基础 ============ */
:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --text-2: #4b5563;
  --text-3: #9ca3af;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #eff4ff;
  --green: #059669;
  --green-soft: #ecfdf5;
  --amber: #b45309;
  --amber-soft: #fffbeb;
  --gray-soft: #f3f4f6;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(17, 24, 39, .05);
  --shadow-lg: 0 12px 32px rgba(17, 24, 39, .12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; }

/* ============ 顶栏 ============ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 28px;
  height: 60px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  white-space: nowrap;
}

.brand .logo-mark {
  height: 30px;
  padding: 0 9px;
  border-radius: 8px;
  background: var(--text);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: .5px;
}

.brand .divider {
  color: var(--text-3);
  font-weight: 400;
  margin: 0 2px;
}

.brand .portal-name { color: var(--text-2); font-weight: 500; font-size: 15px; }

.topbar-spacer { flex: 1; }

.btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
}
.btn:hover { border-color: var(--text-3); background: var(--gray-soft); }

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }

.btn-danger-ghost { color: #dc2626; border-color: #fecaca; }
.btn-danger-ghost:hover { background: #fef2f2; border-color: #fca5a5; }

/* ============ 主体 ============ */
.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 36px 28px 80px;
}

.hero h1 {
  font-size: 30px;
  margin: 0 0 6px;
  letter-spacing: .5px;
}

.hero p {
  margin: 0;
  color: var(--text-2);
}

/* ============ 搜索与筛选 ============ */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 28px 0 24px;
}

.searchbox {
  position: relative;
  flex: 0 1 340px;
  min-width: 240px;
}

.searchbox svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-3);
}

.searchbox input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 14px 0 38px;
  font-size: 14px;
  background: var(--surface);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

.searchbox input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

.filters { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13.5px;
  cursor: pointer;
  transition: all .15s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ============ 卡片网格 ============ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s;
}

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

.cover {
  aspect-ratio: 16 / 8;
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

.cover .cover-icon { opacity: .95; }

.cover .dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .35) 1.2px, transparent 1.2px);
  background-size: 22px 22px;
}

.card-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 10px;
}

.card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.card-title { font-size: 17px; font-weight: 700; margin: 0; }

.badge {
  font-size: 12px;
  padding: 2.5px 10px;
  border-radius: 999px;
  font-weight: 500;
  white-space: nowrap;
}
.badge.demo   { background: var(--primary-soft); color: var(--primary); }
.badge.live   { background: var(--green-soft);   color: var(--green); }
.badge.coming { background: var(--amber-soft);   color: var(--amber); }
.badge.legacy { background: var(--gray-soft);    color: var(--text-2); }

.card-desc {
  color: var(--text-2);
  font-size: 13.5px;
  margin: 0;
  flex: 1;
}

.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 4px;
}

.card-meta {
  color: var(--text-3);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 8px 18px;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
}
.enter-btn:hover { background: var(--primary-dark); }
.enter-btn.live { background: var(--green); }
.enter-btn.live:hover { background: #047857; }

/* 空状态 */
.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 0;
  color: var(--text-3);
}
.empty .empty-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  display: grid;
  place-items: center;
}
.empty h3 { color: var(--text); margin: 0 0 6px; }

/* ============ 免责说明区 ============ */
.disclaimer-section {
  margin-top: 56px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 32px;
}

.disclaimer-text h2 {
  margin: 0 0 14px;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.disclaimer-text h2 .shield {
  color: var(--primary);
  flex-shrink: 0;
}

.disclaimer-text ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.disclaimer-text li {
  display: flex;
  gap: 10px;
  color: var(--text-2);
  font-size: 14px;
}

.disclaimer-text li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-top: 9px;
}

/* ============ 页脚 ============ */
.footer {
  text-align: center;
  color: var(--text-3);
  font-size: 12.5px;
  margin-top: 40px;
}

/* ============ 弹窗（免责 & 管理） ============ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .5);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}

.overlay[hidden] { display: none; }

.modal {
  background: var(--surface);
  border-radius: 16px;
  max-width: 560px;
  width: 100%;
  padding: 30px 32px;
  box-shadow: var(--shadow-lg);
  max-height: 88vh;
  overflow-y: auto;
}

.modal h2 { margin: 0 0 16px; font-size: 20px; }

.modal .modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 22px;
}

/* 管理面板 */
.admin-modal { max-width: 680px; }

.admin-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
  margin-bottom: 8px;
}

.admin-form .full { grid-column: 1 / -1; }

.field label {
  display: block;
  font-size: 12.5px;
  color: var(--text-2);
  margin-bottom: 4px;
}

.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  background: var(--surface);
}

.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary);
}

.field textarea { resize: vertical; min-height: 60px; }

.admin-list { margin-top: 18px; }
.admin-list h3 { font-size: 14px; margin: 0 0 8px; color: var(--text-2); }

.admin-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
  font-size: 13.5px;
}

.admin-item .u { color: var(--text-3); font-size: 12px; }

.hint {
  font-size: 12.5px;
  color: var(--text-3);
  margin: 10px 0 0;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: #111827;
  color: #fff;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  z-index: 200;
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}
.toast.show { opacity: 1; }