/* ====== 基础重置 ====== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #f0f4f5;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-hover: #f8fbff;
  --bg-input: #f7f8fa;
  --border: #ebeef2;
  --border-light: #f0f2f5;
  --border-hover: #ff8552;
  --text: #1a1a2e;
  --text-dim: #6b7280;
  --text-muted: #9ca3af;
  --accent: #ff6b35;
  --accent-light: #ff915d;
  --accent-gradient: linear-gradient(135deg, #ffb469 0%, #ff915d 50%, #ff7a4b 100%);
  --accent-glow: rgba(255, 107, 53, 0.15);
  --accent-shadow: rgba(255, 138, 76, 0.35);
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow: 0 10px 35px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 45px rgba(15, 23, 42, 0.12);
  --shadow-hover: 0 24px 50px rgba(15, 23, 42, 0.12);
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-light); }
ul { list-style: none; }

/* ====== 导航栏 ====== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.navbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.logo-icon {
  width: 38px; height: 38px;
  background: var(--accent-gradient);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  box-shadow: 0 4px 14px var(--accent-shadow);
}

.nav-links {
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  padding: 8px 18px;
  border-radius: 22px;
  font-size: 14px;
  color: var(--text-dim);
  transition: var(--transition);
  font-weight: 500;
}

.nav-links a:hover {
  color: var(--text);
  background: var(--bg-input);
}

.nav-links a.active {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 4px 14px var(--accent-shadow);
}

/* ====== 容器 ====== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px 24px;
  position: relative;
  z-index: 1;
}

/* ====== 页面标题 ====== */
.page-header {
  margin-bottom: 36px;
  text-align: center;
}

.page-header h1 {
  font-size: 38px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.page-header p {
  color: var(--text-dim);
  font-size: 15px;
}

/* ====== 搜索框 ====== */
.search-bar {
  max-width: 520px;
  margin: 0 auto 36px;
  position: relative;
}

.search-bar input {
  width: 100%;
  padding: 14px 20px 14px 48px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 28px;
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.search-bar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.search-bar input::placeholder { color: var(--text-muted); }

.search-bar .search-icon {
  position: absolute;
  left: 18px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 18px;
}

/* ====== 橙色渐变分类栏（参考 iamshuaidi 风格） ====== */
.category-bar {
  background: var(--accent-gradient);
  border-radius: 22px;
  padding: 24px 26px;
  margin-bottom: 36px;
  position: relative;
  box-shadow: 0 18px 40px var(--accent-shadow);
  overflow: hidden;
}

.category-bar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 100%);
  border-radius: 22px;
  pointer-events: none;
}

.category-bar-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

.category-bar .hot-label {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(0,0,0,0.15);
  flex-shrink: 0;
  white-space: nowrap;
}

.category-bar .hot-icon {
  font-size: 22px;
  animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.category-bar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: 1;
}

.cat-bar-tag {
  background: rgba(255, 255, 255, 0.92);
  border: none;
  border-radius: 28px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
  color: #666;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.cat-bar-tag:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  color: #333;
}

.cat-bar-tag.active {
  background: #fff;
  color: var(--accent);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(255,255,255,0.3);
}

/* ====== 筛选标签（软件页用） ====== */
.filter-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 36px;
}

.filter-tag {
  padding: 8px 20px;
  border-radius: 28px;
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.filter-tag:hover {
  border-color: var(--border-hover);
  color: var(--text);
  transform: translateY(-1px);
}

.filter-tag.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-shadow);
}

/* ====== 分类区块 ====== */
.category-section {
  margin-bottom: 36px;
}

.category-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  padding: 0 4px;
  color: var(--text);
}

.category-title .cat-icon {
  font-size: 22px;
}

.category-title .cat-count {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
  background: var(--bg-input);
  padding: 3px 12px;
  border-radius: 12px;
  margin-left: auto;
}

/* ====== 链接卡片网格 ====== */
.links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
}

.link-card {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border-radius: var(--radius);
  border: 1px solid rgba(15, 23, 42, 0.05);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition);
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.04);
}

.link-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-hover);
}

.link-card .link-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.link-card .link-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--bg-input);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.link-card .link-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.link-card .link-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* ====== 软件卡片 ====== */
.software-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.software-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.software-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.sw-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.sw-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, #fff5f0, #ffe8dc);
  border: 1px solid rgba(255, 107, 53, 0.12);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

.sw-info { flex: 1; }

.sw-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.sw-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12px;
}

.sw-tag {
  padding: 3px 10px;
  border-radius: 8px;
  background: var(--bg-input);
  color: var(--text-dim);
}

.sw-tag.platform {
  color: var(--accent);
  background: var(--accent-glow);
}

.sw-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.sw-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.sw-size {
  font-size: 13px;
  color: var(--text-muted);
}

.sw-download {
  padding: 8px 20px;
  background: var(--accent);
  color: #fff;
  border-radius: 22px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sw-download:hover {
  background: var(--accent-light);
  box-shadow: 0 4px 16px var(--accent-shadow);
  color: #fff;
  transform: translateY(-1px);
}

/* ====== 首页 Hero ====== */
.hero {
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 52px;
  font-weight: 900;
  letter-spacing: -1.5px;
  margin-bottom: 16px;
  color: var(--text);
}

.hero h1 .highlight {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
  padding: 14px 32px;
  border-radius: 28px;
  font-size: 15px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px var(--accent-shadow);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px var(--accent-shadow);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

/* 首页统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 60px auto 0;
}

.stat-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 20px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-num {
  font-size: 40px;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: var(--text-dim);
}

/* ====== 登录页 ====== */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  z-index: 1;
  background: var(--bg);
}

.login-box {
  width: 100%;
  max-width: 420px;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 44px;
  box-shadow: var(--shadow-lg);
}

.login-box .logo {
  justify-content: center;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: var(--transition);
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: var(--bg-white);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.btn-full {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-full.primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px var(--accent-shadow);
}

.btn-full.primary:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px var(--accent-shadow);
}

.btn-full.danger {
  background: var(--danger);
  color: #fff;
}

.alert {
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 14px;
  display: none;
}

.alert.error { background: rgba(239, 68, 68, 0.1); color: var(--danger); display: block; }
.alert.success { background: rgba(34, 197, 94, 0.1); color: var(--success); display: block; }

/* ====== 管理后台 ====== */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
}

.admin-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
}

.admin-tab {
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  margin-bottom: -2px;
}

.admin-tab:hover { color: var(--text); }

.admin-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.admin-panel { display: none; }
.admin-panel.active { display: block; }

.admin-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.admin-toolbar h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.admin-table th,
.admin-table td {
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
}

.admin-table th {
  background: var(--bg-input);
  font-weight: 600;
  color: var(--text-dim);
  font-size: 13px;
}

.admin-table tr:last-child td { border-bottom: none; }

.admin-table tr:hover td { background: var(--bg-hover); }

.table-actions {
  display: flex;
  gap: 8px;
}

.btn-sm {
  padding: 6px 16px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-sm.edit {
  background: var(--bg-input);
  color: var(--accent);
}
.btn-sm.edit:hover { background: var(--accent-glow); }

.btn-sm.add {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-shadow);
}
.btn-sm.add:hover { background: var(--accent-light); }

.btn-sm.delete {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}
.btn-sm.delete:hover { background: var(--danger); color: #fff; }

/* 分类条目样式 */
.cat-item {
  margin-bottom: 20px;
}

.cat-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg-input);
  border-radius: 14px;
  margin-bottom: 12px;
}

.cat-item-header .cat-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cat-item-header .cat-info strong {
  font-size: 15px;
  color: var(--text);
}

/* ====== 模态框 ====== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}

.modal-overlay.show { display: flex; }

.modal {
  width: 100%;
  max-width: 520px;
  background: var(--bg-white);
  border-radius: 20px;
  padding: 32px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
  transition: var(--transition);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
}

.modal-close:hover {
  color: var(--text);
  background: var(--bg-input);
}

.modal-footer {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

/* ====== 空状态 ====== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state p { font-size: 15px; }

/* ====== Toast 提示 ====== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 28px;
  border-radius: 14px;
  font-size: 14px;
  z-index: 300;
  opacity: 0;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
  font-weight: 500;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }

/* ====== 网盘资源页 ====== */
.pan-type-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 28px;
}

.pan-type-tag {
  padding: 8px 20px;
  border-radius: 28px;
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-white);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.pan-type-tag:hover {
  border-color: var(--border-hover);
  color: var(--text);
  transform: translateY(-1px);
}

.pan-type-tag.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-shadow);
}

.pan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.pan-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

.pan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.pan-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.pan-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  flex-shrink: 0;
}

.pan-card-info { flex: 1; min-width: 0; }

.pan-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pan-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 12px;
}

.pan-type-badge {
  padding: 3px 10px;
  border-radius: 8px;
  color: #fff;
  font-weight: 500;
  font-size: 12px;
}

.pan-card-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.pan-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.pan-pwd-box {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pan-pwd-label {
  font-size: 12px;
  color: var(--text-muted);
}

.pan-pwd-code {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
  font-family: 'Courier New', monospace;
}

.pan-copy-btn {
  padding: 4px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.pan-copy-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.pan-save-btn {
  padding: 9px 20px;
  border-radius: 22px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.pan-save-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* ====== 图标选择器（emoji + 上传） ====== */
.icon-picker {
  display: flex;
  align-items: center;
  gap: 10px;
}
.icon-preview {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 12px;
  background: var(--bg-input);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  overflow: hidden;
}
.icon-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}
.icon-picker input[type="text"] {
  flex: 1;
}
.icon-upload-btn {
  flex-shrink: 0;
  padding: 10px 16px;
  background: var(--accent-gradient);
  color: #fff;
  border-radius: 28px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.icon-upload-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}
.icon-upload-btn.uploading {
  opacity: 0.6;
  pointer-events: none;
}

/* ====== 通用图标渲染（前台 + 后台） ====== */
.icon-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

/* ====== 响应式 ====== */
@media (max-width: 1200px) {
  .links-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero p { font-size: 15px; }
  .stats-grid { grid-template-columns: 1fr; }
  .nav-links a { padding: 6px 12px; font-size: 13px; }
  .links-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 20px; }
  .software-grid { grid-template-columns: 1fr; }
  .pan-grid { grid-template-columns: 1fr; }
  .page-header h1 { font-size: 28px; }
  .admin-table { font-size: 12px; }
  .admin-table th, .admin-table td { padding: 10px 8px; }
  .category-bar { padding: 18px; }
  .category-bar-inner { flex-direction: column; align-items: flex-start; }
  .container { padding: 24px 16px; }
}

@media (max-width: 480px) {
  .links-grid { grid-template-columns: 1fr; }
  .hero { padding: 40px 16px; }
  .nav-links a { padding: 5px 10px; font-size: 12px; }
  .login-box { padding: 28px; }
}

/* ====== 加载动画 ====== */
.loader {
  display: inline-block;
  width: 20px; height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ====== 淡入动画 ====== */
.fade-in {
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 滚动条 */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.04); }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.35); }