:root {
  --bg: #0e0e10;
  --fg: #eaeaea;
  --muted: #9a9a9a;
  --card: #17171a;
  --accent: #ffffff;
  --primary: #222226;
  --focus: #3a3a42;
  --border: #2a2a2e;
  --card-border: #232329;
  --header-border: #1f1f23;
  --hover: #1a1a1e;
  --input-bg: #101013;
  --summary: #d8d8d8;
  --toast-bg: #1f1f23;
  --toast-fg: var(--fg);
  --skeleton: #151519;
  --tab-active-border: #34343a;
  --mark-bg: #2a2a2e;
  --primary-btn-bg: #eaeaea;
  --primary-btn-fg: #000000;
  --utility-height: 36px;
  --utility-min-width: 92px;
  --slider-active-bg: #eaeaea;
  --slider-active-fg: #000000;
  --pill-track-padding: 4px;
  --pill-option-padding-y: 8px;
  --pill-option-padding-x: 14px;
}

:root[data-theme="light"] {
  --bg: #f5f7fb;
  --fg: #1f2937;
  --muted: #6b7280;
  --card: #ffffff;
  --accent: #1d4ed8;
  --primary: #e2e8f0;
  --focus: rgba(59, 130, 246, 0.45);
  --border: #d1d5db;
  --card-border: #cbd5e1;
  --header-border: #e5e7eb;
  --hover: #f1f5f9;
  --input-bg: #ffffff;
  --summary: #374151;
  --toast-bg: rgba(17, 24, 39, 0.92);
  --toast-fg: #f8fafc;
  --skeleton: #e5e7eb;
  --tab-active-border: #94a3b8;
  --mark-bg: #e2e8f0;
  --primary-btn-bg: #ffffff;
  --primary-btn-fg: #111111;
  --slider-active-bg: #111111;
  --slider-active-fg: #ffffff;
  --pill-track-padding: 4px;
  --pill-option-padding-y: 8px;
  --pill-option-padding-x: 14px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

[data-theme="light"] .header {
  background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,255,255,.82));
}

.header {
  position: sticky;
  top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top)) 20px 12px;
  background: linear-gradient(180deg, rgba(14,14,16,.9), rgba(14,14,16,.6));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--header-border);
}
.brand { font-weight: 600; letter-spacing: .5px; }
.header-actions { display: flex; align-items: center; gap: 12px; flex: 1; }
.nav { display: flex; gap: 8px; flex-wrap: wrap; }
.tab-btn { background: transparent; color: var(--fg); border: 1px solid var(--border); padding: 6px 12px; border-radius: 8px; cursor: pointer; transition: all .2s ease; }
.tab-btn:hover { background: var(--hover); }
.tab-btn.active { background: var(--primary); border-color: var(--tab-active-border); }
.theme-toggle { gap: 6px; }
.header-utilities { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.utility-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--utility-min-width);
  height: var(--utility-height);
  padding: 0 12px;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  cursor: pointer;
  transition: transform .08s ease, background .2s ease, color .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.utility-btn:hover { background: var(--hover); }
.utility-btn:active { transform: scale(.98); }
.utility-btn.active { background: var(--primary); border-color: var(--tab-active-border); }
[data-theme="dark"] .utility-btn.theme-toggle {
  background: #1f2933;
  color: #f8fafc;
  border-color: #1f2933;
}
[data-theme="dark"] .utility-btn.theme-toggle:hover { background: #16202b; }
[data-theme="light"] .utility-btn.theme-toggle {
  background: #ffffff;
  color: #1f2933;
  border-color: #cbd5e1;
  box-shadow: 0 0 0 1px rgba(17,24,39,0.18);
}
[data-theme="light"] .utility-btn.theme-toggle:hover { background: #f1f5f9; }

.mobile-tab-switch {
  display: flex;
  align-items: center;
  padding: var(--pill-track-padding);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  gap: 4px;
  margin: 0 0 16px;
  width: 100%;
  box-sizing: border-box;
}
.segment-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  gap: 4px;
}
.mobile-tab-option {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  padding: var(--pill-option-padding-y) var(--pill-option-padding-x);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, transform .08s ease;
}
.segment-option {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  padding: 2px 34px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .2s ease, color .2s ease, transform .08s ease;
}
.segment-switch.push-mode-switch {
  width: 100%;
  box-sizing: border-box;
}
.segment-switch.push-mode-switch .segment-option {
  flex: 1 1 0;
  min-width: 0;
  padding: 6px 12px;
  white-space: normal;
}
.segment-option:focus-visible,
.mobile-tab-option:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.segment-option.active,
.mobile-tab-option.active {
  background: var(--slider-active-bg);
  color: var(--slider-active-fg);
}
.segment-option:active,
.mobile-tab-option:active { transform: scale(.98); }

main { max-width: 980px; margin: 0 auto; padding: 24px 16px 80px; }
.toolbar {
  display: flex; align-items: center; gap: 12px; row-gap: 10px; margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar-row { width: 100%; }
.toolbar .row1,
.toolbar .row-search,
.toolbar .row-actions {
  display: flex;
  width: 100%;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}
.toolbar .row-search,
.toolbar .row-actions { margin-top: 4px; }
.toolbar .select { flex: 1 1 220px; min-width: 160px; }
.toolbar .search-input {
  flex: 1 1 100%;
  min-width: 220px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  border-radius: 10px;
  transition: border-color .2s ease, box-shadow .2s ease;
  height: 40px;
  line-height: 24px;
}
.toolbar .search-input:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 2px rgba(59,130,246,0.2);
  outline: none;
}
.toolbar .search-input::placeholder { color: var(--muted); }
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration {
  display: none;
}
.search-wrapper {
  flex: 1 1 100%;
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}
.search-wrapper .search-field {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  display: flex;
}
.search-wrapper .search-input { padding-right: 48px; }
.search-wrapper .search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.search-wrapper .search-clear.visible {
  opacity: .6;
  pointer-events: auto;
}
.search-wrapper .search-clear:hover { opacity: 1; }
.search-wrapper .search-clear:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  opacity: 1;
}
.search-wrapper .search-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  flex: 0 0 auto;
  padding: 0 16px;
  border-radius: 10px;
  white-space: nowrap;
  font-size: 16px;
}
.toolbar .row-actions #refreshBtn,
.toolbar .row-actions .switch.as-btn,
.toolbar .row-actions #statusText { flex: 0 0 auto; white-space: nowrap; }
#statusText { margin-left: auto; color: var(--muted); font-size: 12px; }

/* 主按钮（保持原有动画与风格） */
.primary { background: var(--primary-btn-bg); color: var(--primary-btn-fg); border: none; padding: 8px 14px; border-radius: 10px; cursor: pointer; font-weight: 600; transition: transform .08s ease; }
.primary:active { transform: scale(.98); }
/* 调整筛选行中“手动抓取”按钮的固定宽度 */
.toolbar .row-actions #refreshBtn { flex: 0 0 132px; text-align: center; }

/* 将复选开关外观统一为按钮样式 */
.switch.as-btn {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: transform .08s ease, background .2s ease, border-color .2s ease;
}
.switch.as-btn:hover { background: var(--hover); }
.switch.as-btn:active { transform: scale(.98); }
.switch.as-btn input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch.as-btn span { color: inherit; display: inline-flex; align-items: center; }
/* 勾选态标记 */
.switch.as-btn span::before { content: ''; display: none; }
.switch.as-btn input:checked + span::before {
  content: '✓';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  margin-right: 6px;
  font-size: 12px;
  line-height: 1;
  border-radius: 4px;
  background: var(--hover);
  color: var(--fg);
  border: 1px solid var(--border);
}
/* 区分两种开关的选中态颜色 */
.switch.as-btn input#autoRefresh:checked + span { color: #86efac; }
.switch.as-btn input#autoRefresh:checked + span::before { background: #14532d; border-color: #14532d; color: #86efac; }
.switch.as-btn input#forceFetch:checked + span { color: #fca5a5; }
.switch.as-btn input#forceFetch:checked + span::before { background: #7f1d1d; border-color: #7f1d1d; color: #fca5a5; }

.list { display: grid; gap: 12px; }
.empty { padding: 32px 16px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 12px; }
.card { background: var(--card); border: 1px solid var(--card-border); border-radius: 12px; padding: 16px; transition: transform .16s ease, background .2s ease; will-change: transform; }
.card:hover { transform: translateY(-2px); background: var(--hover); }
.title { font-weight: 600; margin: 0 0 6px; }
.title.clickable { cursor: pointer; }
.meta { color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.summary { line-height: 1.6; color: var(--summary); overflow-wrap: anywhere; word-break: break-word; }
.link { color: var(--accent); text-decoration: none; }
.link:hover { text-decoration: underline; }

.pager { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 16px; }
.pager button { background: var(--hover); color: var(--fg); border: 1px solid var(--border); padding: 6px 10px; border-radius: 8px; cursor: pointer; }

.settings-form { display: grid; gap: 18px; }
fieldset { border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
legend { color: var(--muted); padding: 0 6px; }
label { display: grid; gap: 6px; margin: 8px 0; }
input, textarea { background: var(--input-bg); color: var(--fg); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
input[type="checkbox"] { width: 18px; height: 18px; }
.actions { display: flex; align-items: center; gap: 12px; }
.form-hint { margin: 6px 0 0; color: var(--muted); font-size: 0.9rem; }

/* 焦点可见性（无障碍） */
.tab-btn:focus-visible,
.primary:focus-visible,
.ghost:focus-visible,
.pager button:focus-visible,
.to-top:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.toast { position: fixed; left: 50%; bottom: calc(28px + env(safe-area-inset-bottom)); transform: translateX(-50%) translateY(20px); opacity: 0; transition: all .25s ease; background: var(--toast-bg); color: var(--toast-fg); padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; }
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

.tab { display: none; opacity: 0; transform: translateY(6px); transition: all .2s ease; }
.tab.active { display: block; opacity: 1; transform: translateY(0); }

/* 新增：过滤、骨架屏、弹窗、按钮 */
.select, .input { background: var(--input-bg); color: var(--fg); border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; }
.switch { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.ghost { background: transparent; color: var(--fg); border: 1px solid var(--border); padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.actions-row { display:flex; gap:10px; align-items:center; margin-top: 8px; }
.actions-row.report-actions { justify-content: flex-end; }
.ghost.danger { color: #dc2626; border-color: rgba(220,38,38,0.5); }
.ghost.danger:hover { background: rgba(220,38,38,0.12); border-color: rgba(220,38,38,0.8); }
mark { background: var(--mark-bg); color: var(--fg); padding: 0 2px; border-radius: 3px; }

/* 骨架屏 */
.skeleton .srect { background: var(--skeleton); height: 12px; border-radius: 6px; margin: 8px 0; opacity: .8; animation: pulse 1.4s ease-in-out infinite; }
.skeleton .srect.title { height: 18px; width: 70%; }
.skeleton .srect.sm { width: 30%; height: 10px; }
.skeleton .srect.half { width: 50%; }
@keyframes pulse { 0% { opacity:.5 } 50% { opacity:1 } 100% { opacity:.5 } }

/* 弹窗 */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.5); display:none; align-items: center; justify-content: center; padding: 20px; }
.modal.show { display:flex; }
.modal-dialog { background: var(--card); border: 1px solid var(--card-border); border-radius: 12px; width: min(760px, 92vw); max-height: 88vh; display:flex; flex-direction: column; }
.modal-header, .modal-footer { padding: 12px 14px; display:flex; align-items:center; justify-content: space-between; border-bottom: 1px solid var(--card-border); }
.modal-footer { border-top: 1px solid var(--card-border); border-bottom: none; }
.modal-body { padding: 12px 14px; overflow:auto; }
.modal-section { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--card-border); }
.modal-section .section-title { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 6px; letter-spacing: .2px; }
.modal-section .original-body { font-size: 14px; line-height: 1.7; white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere; }
/* 标题布局：占满剩余空间并自动换行，避免被关闭按钮遮挡 */
.modal-header h3 { flex: 1 1 auto; margin: 0; padding-right: 8px; overflow-wrap: anywhere; }

/* 打开弹窗时，禁止背景滚动 */
body.modal-open { overflow: hidden; }

/* 返回顶部 */
.to-top { position: fixed; right: 16px; bottom: max(24px, env(safe-area-inset-bottom)); background: var(--hover); color: var(--fg); border: 1px solid var(--border); border-radius: 999px; width: 40px; height: 40px; display:flex; align-items:center; justify-content:center; cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(6px); transition: all .2s ease; }
.to-top.show { opacity: .9; pointer-events: auto; transform: translateY(0); }
.to-top:hover { opacity: 1; }

/* 卡片入场动画 */
.card.enter { animation: cardIn .28s ease both; }
@keyframes cardIn { from { opacity: 0; transform: translateY(6px) } to { opacity: 1; transform: translateY(0) } }

/* Modal 动画 */
.modal.show .modal-dialog { animation: modalIn .22s ease; }
@keyframes modalIn { from { opacity: 0; transform: translateY(6px) scale(.98) } to { opacity: 1; transform: translateY(0) scale(1) } }

/* 移动端适配 */
@media (max-width: 900px) {
  main { padding: 20px 14px 84px; }
}
@media (max-width: 520px) {
  .toolbar .search-input { min-width: 0; }
}
@media (max-width: 768px) {
  .header { flex-wrap: wrap; gap: 8px; }
  .header-actions { width: 100%; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
  .header .nav { flex: 1 1 100%; }
  .header-utilities { width: auto; margin-left: auto; }
  .header-utilities .utility-btn { flex: 0 0 auto; min-width: 0; }
  .mobile-tab-switch { width: 100%; margin: 0 0 16px; }
  .mobile-tab-option { font-size: 15px; }
  .header .tab-btn[data-tab="content"],
  .header .tab-btn[data-tab="reports"] { display: none; }
  .nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn { min-height: 36px; }
  .toolbar { gap: 8px; }
  /* 让两行成为独立行 */
  .toolbar .row1,
  .toolbar .row-search,
  .toolbar .row-actions { gap: 8px; }
  .toolbar .row1 #feedSelect { flex: 1 1 auto; max-width: none; min-width: 0; }
  .toolbar .row-search .search-wrapper { flex: 1 1 auto; min-width: 0; }
  .toolbar .row-actions #refreshBtn,
  .toolbar .row-actions .switch.as-btn { flex: 0 0 auto; }
  .toolbar .row-actions #statusText { margin-left: auto; text-align: right; font-size: 12px; }
  .search-wrapper { gap: 8px; }
  input, textarea, select { padding: 10px 12px; font-size: 16px; }
  .primary, .ghost, .pager button, .tab-btn { padding: 10px 12px; }
}
@media (max-width: 600px) {
  /* 自适应弹窗：依据屏幕百分比显示，居中并保留上下留白 */
  .modal { padding: 16px; }
  .modal-dialog { width: 94vw; max-height: 90vh; height: auto; border-radius: 12px; }
  .modal-header { position: static; padding-top: 12px; padding-bottom: 12px; background: var(--card); }
  .modal-footer { position: static; padding-top: 12px; padding-bottom: 12px; background: var(--card); }
  .modal-body { flex: 1 1 auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; }
  /* 提升移动端可读性 */
  #modalTitle { font-size: 18px; line-height: 1.35; }
  #modalSummary { font-size: 15px; line-height: 1.75; word-break: break-word; overflow-wrap: anywhere; }
  #modalMeta { font-size: 12px; }
  .modal-header .ghost { padding: 10px 12px; }
  .modal-footer a#modalLink { display: inline-block; padding: 10px 12px; }
}

/* 减少动画（系统偏好） */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: 0s !important; }
}