:root {
  --bg: #f5f5f7;
  --card-bg: #ffffff;
  --text-main: #1d1d1f;
  --text-sub: #4e4e4e;
  --border: #d2d2d7;
  --focus-ring: #0071e3;
  --focus-muted: #d4d4d4;
  --help-link: #0ab5ff80;
  --danger: #ff3b30;
  --success: #34c759;
  --warning: #ff9f0a;
  --tag-bg: #e8e8ed;
  --radius: 10px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica,
    Arial, sans-serif;
  --code-bg: #f0f0f0;
}

/* 深色模式变量 */
html[data-theme='dark'] {
  --bg: #000000;
  --card-bg: #1c1c1e;
  --text-main: #f5f5f7;
  --text-sub: #d3d3d3;
  --border: #424245;
  --tag-bg: #3a3f55;
  --focus-ring: #0a84ff;
  --focus-muted: #202020;
  --help-link: #0164c7ca;
  --code-bg: #1c1c1e;
}

* {
  box-sizing: border-box;
  outline: none;
}

body {
  font-family: var(--font-sans);
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text-main);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header */
header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-left {
  display: flex;
  align-items: center; /* 垂直居中 */
  gap: 0.5rem; /* 图标与文字间距 */
}

.header-left h1 {
  font-size: 1.4rem; /* 根据需要调整大小 */
}

.site-logo {
  height: 20px;
  margin-top: 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.icon-btn-header {
  background: transparent;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.icon-btn-header:hover {
  background: var(--tag-bg);
}

.icon-btn-header svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.icon-btn-header svg.stroke-icon {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

/* Header Dropdown Specifics */
.header-dropdown-wrapper {
  position: relative;
}

.header-options {
  position: absolute;
  top: 120%;
  right: 0;
  left: auto;
  min-width: 110px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 30;
  display: none;
  overflow: hidden;
}

.header-options.open {
  display: block;
  animation: fadeIn 0.1s ease;
}

.header-options .language {
  justify-content: space-between;
}

.check-icon {
  opacity: 0;
  color: var(--focus-ring);
}

.custom-option.selected .check-icon {
  opacity: 1;
}

/* Layout */
.main-layout {
  display: grid;
  grid-template-columns: minmax(400px, 2fr) 1fr;
  height: 100%;
  overflow: hidden;
}

.panel-left,
.panel-right {
  padding: 24px;
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s ease;
  /* 滚动条样式 (Firefox) */
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.panel-left {
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.panel-right {
  background: var(--card-bg);
}

/* 历史记录区域滚动样式 */
.scroll-area {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
  /* 为滚动条留出一点空间，避免内容紧贴 */
  margin-right: -4px;
  /* 将多余的空间移回，保持视觉对齐 */
}

/* 滚动条样式 (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: var(--border);
  border-radius: 10px;
  /* 创建一个“内边距”效果，让滚动条看起来更细 */
  border: 2px solid var(--card-bg);
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-sub);
}

.form-group {
  margin-bottom: 18px;
  flex-shrink: 0;
}

/* 容器布局，让标签和按钮对齐 */
.label_wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
}

/* 重置按钮样式 */
.btn-reset {
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--border);
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

/* 鼠标悬停效果 */
.btn-reset:hover {
    color: #dc3545; /* 悬停变红，提示这是一个清除操作 */
    transition: all 0.5s ease;
}

/* 包含 SVG 的样式调整 */
.btn-reset svg {
    width: 16px;
    height: 16px;
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
  text-transform: capitalize;
}

.form-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

/* 让原有的 label 在这个容器里不需要下边距，由容器控制 */
.form-header label {
  margin-bottom: 0;
}

/* 帮助链接样式 */
.help-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--help-link);
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
  font-weight: 500;
}

.help-link:hover {
  opacity: 0.7;
}

.help-link svg {
  width: 14px;
  height: 14px;
  stroke-width: 2;
}

/* API Display Box */
.api-display-box {
  display: flex;
  align-items: center;
  background: var(--code-bg);
  border: 1px dashed var(--focus-ring);
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
}

.api-display-box:hover {
  background: var(--tag-bg);
}

.api-label-badge {
  font-size: 0.7rem;
  font-weight: 700;
  background: var(--focus-ring);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  margin-right: 10px;
  flex-shrink: 0;
}

#apiUrlText {
  font-family: monospace;
  font-size: 0.9rem;
  flex-grow: 1;
  word-break: break-all;
}

.copy-hint {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.75rem;
  color: var(--focus-ring);
  opacity: 0;
  transition: opacity 0.2s;
  background: var(--tag-bg);
  padding-left: 8px;
  box-shadow: -8px 0 10px -2px var(--tag-bg);
  pointer-events: none;
  border-radius: 4px;
}

.api-display-box:hover .copy-hint {
  opacity: 1;
}

.btn:hover .copy-hint {
  opacity: 1;
}

/* URL Chips */
.chip-container {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 46px;
  cursor: text;
  transition: all 0.2s;
}

.chip-container:focus-within {
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 1px rgba(0, 113, 227, 0.2);
}

#urlContainer {
  max-height: 25vh;
  overflow-y: auto;
}

.chip {
  background: var(--tag-bg);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  border: 1px solid transparent;
}

.chip svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  flex-shrink: 0;
}

.chip-text {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;
  outline: none;
  border-radius: 2px;
  padding: 2px 4px 4px 2px;
  transition: all 0.2s;
  line-height: 1;
}

.chip-text:hover {
  background: rgba(0, 0, 0, 0.05);
}

.chip-text:focus {
  background: var(--card-bg);
  color: var(--text-main);
  box-shadow: 0 0 0px 1px var(--focus-muted);
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-all;
  overflow: visible;
}

.chip-close {
  cursor: pointer;
  opacity: 0.5;
  font-weight: bold;
  padding: 0px 2px 2px 4px;
  flex-shrink: 0;
  user-select: none;
}

.chip-close:hover {
  opacity: 1;
  color: var(--danger);
}

.chip-input {
  border: none;
  background: transparent;
  flex-grow: 1;
  min-width: 150px;
  padding: 4px;
  font-size: 0.95rem;
  color: var(--text-main);
}

/* Custom Dropdown (Generic) */
.grid-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.custom-select-wrapper {
  position: relative;
  width: 100%;
}

.custom-select-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.95rem;
  color: var(--text-sub);
  transition: border-color 0.2s;
  user-select: none;
}

.custom-select-trigger:hover {
  border-color: var(--text-sub);
}

.custom-select-value {
  display: flex;
  align-items: center;
  gap: 8px;
}

.custom-select-value svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--text-sub);
}

.custom-options {
  position: absolute;
  top: 105%;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  z-index: 20;
  display: none;
  overflow: hidden;
}

.custom-options.open {
  display: block;
  animation: fadeIn 0.1s ease;
}

.custom-option {
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  transition: background 0.1s;
  color: var(--text-main);
}

.custom-option:hover {
  background: var(--tag-bg);
}

.custom-option svg {
  width: 16px;
  height: 16px;
  color: var(--text-sub);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Inputs */
.input-std {
  width: 100%;
  padding: 10px 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 0.95rem;
  appearance: none;
}

.input-std:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.2);
}

/* 全局降低 Placeholder 透明度 */
::placeholder {
  color: var(--text-sub);
  /* 使用次级文本颜色 */
  opacity: 0.5;
  /* 进一步降低不透明度 */
}

.form-group-fill {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 130px;
  margin-bottom: 18px;
}

textarea.input-std-fill {
  flex: 1;
  resize: none;
  width: 100%;
  padding: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-main);
  font-size: 0.95rem;
  line-height: 1.5;
  font-family: monospace;
}

textarea.input-std-fill:focus {
  border-color: var(--focus-ring);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.2);
}

/* Action Buttons */
.actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: auto;
}

.btn {
  border: none;
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  position: relative;
}

.btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.btn-primary {
  background: var(--focus-ring);
  color: white;
}

.btn-primary:hover {
  opacity: 0.9;
}

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

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

.btn-copied {
  color: var(--success) !important;
  border-color: var(--success) !important;
  background: rgba(52, 199, 89, 0.1) !important;
}

/* 当按钮处于“已复制”状态时，隐藏提示语，避免遮挡“已复制!”文本 */
.btn-copied .copy-hint {
  opacity: 0 !important;
}

/* Right Panel */
.panel-header {
  padding: 0 0 16px 0;
  border-bottom: 1px dashed var(--border);
  font-weight: 600;
  color: var(--text-sub);
  font-size: 0.9rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.btn-text-danger {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 0.85rem;
  cursor: pointer;
}

#resultArea {
  padding: 15px;
  background: var(--code-bg);
  font-family: monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-all;
  border-radius: var(--radius);
  border: 1px solid transparent;
  margin-bottom: 20px;
  max-height: 250px;
  overflow-y: auto;
  color: var(--text-main);
}

.response-ok {
  border-color: var(--success);
  color: var(--success) !important;
  background: rgba(52, 199, 89, 0.05) !important;
}

.response-err {
  border-color: var(--danger);
  color: var(--danger) !important;
  background: rgba(255, 59, 48, 0.05) !important;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-item {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s;
  background: var(--card-bg);
}

.history-item:hover {
  border-color: var(--focus-ring);
}

.h-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-sub);
  margin-bottom: 4px;
}

.h-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-main);
}

.h-preview {
  font-size: 0.8rem;
  color: var(--text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.loading .spinner {
  display: block;
}

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

@media (max-width: 900px) {
  .main-layout {
    grid-template-columns: 1fr;
    display: block;
    overflow-y: auto;
  }

  body {
    height: auto;
    overflow: auto;
  }

  .panel-left,
  .panel-right {
    height: auto;
    border: none;
    overflow: visible;
  }

  .panel-right {
    border-top: 8px solid var(--bg);
  }

  header {
    padding: 0 12px;
  }

  .header-right {
    gap: 0px;
  }

  .panel-left,
  .panel-right {
    padding: 12px;
  }

  .api-display-box {
    padding: 10px 6px;
    /* position: relative; */
  }

  .api-display-box .copy-hint {
    right: 6px;
    top: auto;
    bottom: 10px;
    /* = line-height / 2 */
    transform: none;
  }

  /* 避免小屏幕缩放 */
  input,
  textarea {
    font-size: 1rem !important;
  }

  /* 通知 URL */
  .chip-text {
    font-size: 1rem !important;
  }

  .form-group-fill {
    min-height: 140px;
  }

  textarea.input-std-fill {
    height: 100%;
  }

  .actions-row {
    grid-template-columns: 1fr 1fr;
  }
}