/* ========================================
   玻璃态UI样式表（性能优化版）
   - 降低模糊强度
   - 添加 will-change 提示
   - 确保 transform 硬件加速
   ======================================== */

:root {
  --bg-gradient: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
  --glass-bg: rgba(255, 255, 255, 0.5);
  --glass-bg-hover: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
  --text-main: #1d1d1f;
  --text-sub: #6e6e73;
  --accent-black: #111113;
  --accent-green: #22c55e;
  --accent-orange: #f97316;
  --accent-blue: #2563eb;
  --accent-purple: #7c3aed;
  --radius-capsule: 100px;
  --radius-card: 24px;
  --radius-small: 18px;
  --radius-xs: 12px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent; /* 移除移动端点击黄色高亮 */
}

/* 移除默认焦点框，提升触摸体验 */
:focus {
  outline: none;
}

/* 为键盘导航保留可见焦点样式 */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg-gradient);
  min-height: 100vh;
  font-family: var(--font-family);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(8px); /* 降低模糊强度 */
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform, opacity; /* 提示浏览器优化 */
}

.glass-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(31, 38, 135, 0.12);
}

/* 头部 */
.app-header {
  padding: 2rem 0 1.5rem;
}

.brand-wrap {
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.avatar {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  overflow: hidden;
  flex-shrink: 0;
  will-change: transform; /* 独立合成层 */
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.title-col {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.app-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-top: 4px;
}

/* 运行时间条 */
.uptime-section {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-small);
  padding: 12px 16px;
  margin-bottom: 12px;
  overflow: hidden;
  font-size: 13px;
  will-change: transform;
}

.uptime-bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent-black);
  opacity: 0.12;
}

.uptime-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  color: var(--text-sub);
}

.uptime-icon {
  display: flex;
  align-items: center;
}

.uptime-icon svg {
  width: 14px;
  height: 14px;
  opacity: 0.7;
  stroke: currentColor;
  fill: none;
}

.uptime-label {
  opacity: 0.75;
}

.uptime-value {
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.2px;
}

.mono {
  font-family: var(--font-mono);
}

/* 搜索框 */
.toolbar {
  margin-bottom: 16px;
}

.search-input {
  width: 100%;
  padding: 12px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-capsule);
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--text-main);
  transition: all 0.2s ease;
  will-change: transform, border-color;
}

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

.search-input:focus {
  outline: none;
  background: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 4px 20px rgba(31, 38, 135, 0.1);
}

/* API卡片网格 */
.api-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

@media (max-width: 640px) {
  .api-grid {
    grid-template-columns: 1fr;
  }
}

.api-card {
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: fadeIn 0.3s ease-out forwards;
  opacity: 0;
  will-change: transform, opacity;
}

.api-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(31, 38, 135, 0.12);
}

.card-content {
  padding: 1rem 1.25rem;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
}

.radar {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-green);
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
  will-change: opacity, transform;
}

.radar.down {
  background: var(--accent-orange);
  animation: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.9); }
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.5;
  margin-bottom: 12px;
}

.meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.stat .label {
  font-size: 12px;
  color: var(--text-sub);
}

.stat .value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  transition: background 0.2s, color 0.2s;
  will-change: background, color;
}

.icon-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-main);
}

.icon-btn.copied {
  color: var(--accent-green);
}

.icon-btn svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
}

.expand-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  background: none;
  border: none;
  font-family: var(--font-family);
  font-size: 0.9rem;
  color: var(--text-sub);
  cursor: pointer;
  transition: color 0.2s;
}

.expand-btn:hover {
  color: var(--text-main);
}

.expand-btn .chev {
  transition: transform 0.2s ease;
}

.expand-btn.expanded .chev {
  transform: rotate(90deg);
}

.expand-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
}

.details-panel {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  animation: fadeIn 0.3s ease-out;
}

.detail-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}

.detail-row:last-child {
  margin-bottom: 0;
}

.detail-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-sub);
  min-width: 70px;
  flex-shrink: 0;
}

.method-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-capsule);
  font-size: 12px;
  font-weight: 700;
}

.method-badge.get {
  background: rgba(34, 197, 94, 0.15);
  color: #16a34a;
}

.method-badge.post {
  background: rgba(59, 130, 246, 0.15);
  color: #2563eb;
}

.url-box {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  padding: 10px 14px;
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--radius-xs);
}

.url-box code {
  font-size: 13px;
  color: var(--text-main);
  word-break: break-all;
  font-family: var(--font-mono);
}

.params-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.param-item {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.param-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.1);
  padding: 2px 10px;
  border-radius: var(--radius-capsule);
}

.required-badge {
  font-size: 11px;
  color: #dc2626;
  background: rgba(220, 38, 38, 0.1);
  padding: 2px 8px;
  border-radius: var(--radius-capsule);
}

.param-desc {
  font-size: 13px;
  color: var(--text-sub);
}

.example-box {
  flex: 1;
  padding: 10px 14px;
  background: rgba(139, 92, 246, 0.05);
  border-radius: var(--radius-xs);
  border: 1px dashed rgba(139, 92, 246, 0.2);
}

.example-box code {
  font-size: 13px;
  color: var(--accent-purple);
  word-break: break-all;
  font-family: var(--font-mono);
}

/* FAB */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
}

.fab-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-black);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform, box-shadow;
}

.fab-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.fab-btn svg {
  width: 24px;
  height: 24px;
  stroke: white;
}

.fab-btn.open svg {
  transform: rotate(45deg);
}

.fab-panel-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 998;
}

.fab-panel-mask.show {
  opacity: 1;
  visibility: visible;
}

.fab-panel {
  position: fixed;
  bottom: 90px;
  right: 24px;
  min-width: 260px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 999;
  will-change: transform, opacity;
}

.fab-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.fab-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  transition: background 0.2s;
}

.fab-item:hover {
  background: rgba(0, 0, 0, 0.03);
}

.fab-item .icon {
  color: var(--text-sub);
  flex-shrink: 0;
}

.fab-item .icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
}

.fab-item .content {
  flex: 1;
}

.fab-item .title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.fab-item .desc {
  font-size: 0.8rem;
  color: var(--text-sub);
}

.fab-item .go {
  font-size: 0.8rem;
  color: var(--text-sub);
  padding: 4px 12px;
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--radius-capsule);
}

/* 页脚 */
.app-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  margin-top: 2rem;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-sub);
}

.footer-link {
  color: var(--text-sub);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--text-main);
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 2000;
}

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

.modal-content {
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.5rem;
  animation: slideUp 0.3s ease-out;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.03);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  font-size: 1rem;
  transition: background 0.2s;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.06);
}

.modal-close svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 1.5rem;
}

.stat-card {
  padding: 1rem;
  border-radius: var(--radius-small);
  text-align: center;
  background: rgba(0, 0, 0, 0.02);
}

.stat-card.active {
  background: rgba(34, 197, 94, 0.1);
}

.stat-card.total {
  background: rgba(59, 130, 246, 0.1);
}

.stat-card .stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.stat-card.active .stat-number {
  color: var(--accent-green);
}

.stat-card.total .stat-number {
  color: var(--accent-blue);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-sub);
  margin: 0;
}

/* 热门API列表 */
.top-apis-title {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.top-apis-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.top-api-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  background: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-xs);
}

.top-api-rank {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rank-badge {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-sub);
}

.rank-badge.top {
  background: var(--accent-black);
  color: white;
}

.top-api-name {
  font-size: 0.9rem;
  color: var(--text-main);
}

.top-api-calls {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-sub);
}

/* 友链列表 */
.friend-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.friend-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px;
  border-radius: var(--radius-small);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s, transform 0.2s;
}

.friend-item:hover {
  background: rgba(0, 0, 0, 0.03);
  transform: translateX(4px);
}

.friend-avatar {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  object-fit: cover;
}

.friend-content {
  flex: 1;
  min-width: 0;
}

.friend-name {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.friend-desc {
  display: block;
  font-size: 0.85rem;
  color: var(--text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 管理后台表格 */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table td, .admin-table th {
  padding: 12px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  color: var(--text-main);
  text-align: left;
}

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

.user-agent {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 表单元素 */
.form-input, .form-select, .form-textarea {
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--text-main);
  transition: all 0.2s;
  width: 100%;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  background: white;
  border-color: var(--accent-purple);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.btn {
  padding: 10px 20px;
  border-radius: var(--radius-capsule);
  border: none;
  background: var(--accent-black);
  color: white;
  font-family: var(--font-family);
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  will-change: transform, opacity;
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--accent-black);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-sub);
}

.btn-ghost:hover {
  background: rgba(0, 0, 0, 0.05);
}

.btn-danger {
  background: transparent;
  color: #dc2626;
}

.btn-danger:hover {
  background: rgba(220, 38, 38, 0.1);
}

.btn svg {
  width: 1em;
  height: 1em;
  stroke: currentColor;
  fill: none;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-capsule);
  font-size: 0.9rem;
  z-index: 3000;
  display: none;
  animation: fadeIn 0.3s ease-out;
}

.toast.show {
  display: block;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 3rem;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
}

.empty-state p {
  font-size: 1.1rem;
  color: var(--text-sub);
}

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 响应式 */
@media (max-width: 640px) {
  .container { padding: 0 1rem; }
  .app-header { padding: 1.5rem 0 1rem; }
  .avatar { width: 50px; height: 50px; }
  .app-title { font-size: 1.25rem; }
  .stats-grid { grid-template-columns: 1fr; }
  .fab { bottom: 16px; right: 16px; }
  .fab-panel { right: 16px; bottom: 80px; min-width: 240px; }
  .modal-content { padding: 1rem; }
}