.home[data-v-ebe2fa14] {
  --home-measure: 52rem;
  --home-gutter: var(--space-4);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  width: 100%;
  max-width: none;
  margin: 0;
  padding-top: max(var(--space-8), env(safe-area-inset-top, 0px));
  padding-bottom: max(var(--space-6), env(safe-area-inset-bottom, 0px));
}
.head[data-v-ebe2fa14] {
  display: grid;
  gap: var(--space-2);
  max-width: var(--home-measure);
  width: 100%;
  margin: 0 auto var(--space-6);
  padding-left: max(var(--home-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--home-gutter), env(safe-area-inset-right, 0px));
  animation: enter-ebe2fa14 var(--duration-enter) var(--ease-out) both;
}
.head-brand[data-v-ebe2fa14] {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.2;
}
.head-title[data-v-ebe2fa14] {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(1rem, 2.4vw, 1.125rem);
  font-weight: 600;
  letter-spacing: var(--tracking-title);
  line-height: 1.3;
  color: var(--text);
}
.index[data-v-ebe2fa14] {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
  width: 100%;
}
.index-list[data-v-ebe2fa14] {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--text);
}
.index-item[data-v-ebe2fa14] {
  border-bottom: 1px solid var(--text);
  animation: enter-row-ebe2fa14 300ms var(--ease-out) both;
  animation-delay: calc(60ms + var(--stagger, 0ms));
}
.index-row[data-v-ebe2fa14] {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
  box-sizing: border-box;
  max-width: var(--home-measure);
  min-height: 4.5rem;
  margin: 0 auto;
  padding: clamp(1.1rem, 3vh, 1.75rem) var(--home-gutter);
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
  touch-action: pan-x pan-y;
  transition:
    background-color var(--duration) var(--ease),
    color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}
.index-row[data-v-ebe2fa14]:focus-visible {
  background: var(--text);
  color: var(--color-on-primary);
  box-shadow: -100vw 0 0 var(--text), 100vw 0 0 var(--text);
  outline: 2px solid var(--text);
  outline-offset: 3px;
}
@media (hover: hover) and (pointer: fine) {
.index-row[data-v-ebe2fa14]:hover {
    background: var(--text);
    color: var(--color-on-primary);
    box-shadow: -100vw 0 0 var(--text), 100vw 0 0 var(--text);
}
.index-row:hover .index-num[data-v-ebe2fa14] {
    color: color-mix(in srgb, var(--color-on-primary) 70%, transparent);
}
.index-row:hover .index-arrow[data-v-ebe2fa14] {
    color: var(--color-on-primary);
    transform: translateX(4px);
}
}
.index-label[data-v-ebe2fa14] {
  font-weight: 700;
  font-size: clamp(2rem, 7.5vw, 3.75rem);
  letter-spacing: var(--tracking-display);
  line-height: 0.95;
  color: inherit;
  background: transparent;
}
.index-meta[data-v-ebe2fa14] {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.index-num[data-v-ebe2fa14] {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  transition: color var(--duration) var(--ease);
}
.index-row:focus-visible .index-num[data-v-ebe2fa14] {
  color: color-mix(in srgb, var(--color-on-primary) 70%, transparent);
}
.index-arrow[data-v-ebe2fa14] {
  color: var(--muted);
  transition:
    color var(--duration) var(--ease),
    transform var(--duration) var(--ease);
}
.index-row:focus-visible .index-arrow[data-v-ebe2fa14] {
  color: var(--color-on-primary);
  transform: translateX(4px);
}
.foot[data-v-ebe2fa14] {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  box-sizing: border-box;
  width: 100%;
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  padding-inline: max(
    var(--home-gutter),
    calc((100% - var(--home-measure)) / 2 + var(--home-gutter))
  );
  border-top: 1px solid var(--color-border-subtle);
}
.foot-meta[data-v-ebe2fa14] {
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  letter-spacing: 0.04em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.foot-sep[data-v-ebe2fa14] {
  opacity: 0.45;
  color: var(--muted);
}
@keyframes enter-ebe2fa14 {
from {
    opacity: 0;
    transform: translateY(6px);
}
to {
    opacity: 1;
    transform: none;
}
}
@keyframes enter-row-ebe2fa14 {
from {
    opacity: 0;
    transform: translateY(8px);
}
to {
    opacity: 1;
    transform: none;
}
}
@media (min-width: 640px) {
.home[data-v-ebe2fa14] {
    --home-gutter: var(--space-6);
    padding-top: max(var(--space-10), env(safe-area-inset-top, 0px));
}
.head[data-v-ebe2fa14] {
    margin-bottom: var(--space-8);
}
.index-row[data-v-ebe2fa14] {
    min-height: 5.25rem;
}
.index-label[data-v-ebe2fa14] {
    font-size: clamp(2.75rem, 6vw, 4.25rem);
}
}
@media (prefers-reduced-motion: reduce) {
.head[data-v-ebe2fa14],
  .index-item[data-v-ebe2fa14] {
    animation: none;
    opacity: 1;
    transform: none;
}
.index-arrow[data-v-ebe2fa14] {
    transform: none;
}
.index-row:focus-visible .index-arrow[data-v-ebe2fa14] {
    transform: none;
}
@media (hover: hover) and (pointer: fine) {
.index-row:hover .index-arrow[data-v-ebe2fa14] {
      transform: none;
}
}
}
@media (max-width: 639px) {
.home[data-v-ebe2fa14] {
    --home-gutter: var(--space-3);
}
.index-row[data-v-ebe2fa14] {
    min-height: 3.75rem;
    gap: var(--space-3);
}
.index-label[data-v-ebe2fa14] {
    font-size: clamp(1.75rem, 9vw, 2.75rem);
}
.index-num[data-v-ebe2fa14] {
    font-size: var(--text-label-sm);
}
}
@media (hover: none), (any-pointer: coarse) {
.index-row:active .index-arrow[data-v-ebe2fa14] {
    transform: translateX(3px);
}
}
*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: color-mix(in srgb, var(--color-text, #0a0a0a) 10%, transparent);
}

:root {
  --font: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', 'Cascadia Mono', Consolas, monospace;

  /* Type ramp — purpose roles */
  --text-display: clamp(2.75rem, 11vw, 4.5rem);
  --text-title-lg: 1.25rem;
  --text-title: 1.125rem;
  --text-body: 1rem;
  --text-body-sm: 0.875rem;
  --text-label: 0.75rem;
  --text-label-sm: 0.6875rem;
  --text-data: 1.75rem;
  --text-data-lg: 2rem;

  --leading-display: 0.95;
  --leading-tight: 1.25;
  --leading-body: 1.6;
  --tracking-display: -0.035em;
  --tracking-title: -0.02em;
  --tracking-label: 0.1em;

  --radius: 6px;
  --radius-sm: 4px;
  --radius-input: 4px;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration: 160ms;
  --duration-feedback: 120ms;
  --duration-state: 180ms;
  --duration-enter: 480ms;
  --duration-route-out: 120ms;
  --duration-route-in: 220ms;

  /* Monochrome — black / white / gray / dark gray */
  --color-primary: #171717;
  --color-primary-hover: #000000;
  --color-secondary: #525252;
  --color-accent: #171717;
  --color-accent-hover: #000000;
  --color-bg: #ffffff;
  --color-text: #0a0a0a;
  --color-muted: #737373;
  --color-surface: #ffffff;
  --color-surface-hover: #f5f5f5;
  --color-border: #d4d4d4;
  --color-border-subtle: #e5e5e5;
  --color-danger: #b91c1c;
  --color-danger-soft: rgba(185, 28, 28, 0.1);
  --color-warning: #a16207;
  --color-warning-soft: rgba(161, 98, 7, 0.12);
  --color-info: #404040;
  --color-info-soft: rgba(23, 23, 23, 0.08);
  --color-success-soft: rgba(23, 23, 23, 0.08);
  --color-header-bg: rgba(255, 255, 255, 0.92);
  --color-modal-backdrop: rgba(10, 10, 10, 0.45);
  --color-float-bar: rgba(255, 255, 255, 0.96);
  --color-shadow: rgba(10, 10, 10, 0.06);
  --color-on-primary: #ffffff;

  accent-color: var(--color-primary);

  --bg: var(--color-bg);
  --text: var(--color-text);
  --muted: var(--color-muted);
  --surface: var(--color-surface);
  --surface-hover: var(--color-surface-hover);
  --border: var(--color-border);
  --accent: var(--color-primary);
  --accent-hover: var(--color-primary-hover);
  --accent-soft: var(--color-success-soft);
  --accent-cta: var(--color-accent);
  --danger: var(--color-danger);
  --danger-soft: var(--color-danger-soft);
  --warning: var(--color-warning);
  --warning-soft: var(--color-warning-soft);
  --info: var(--color-info);
  --info-soft: var(--color-info-soft);
  --header-bg: var(--color-header-bg);
  --modal-backdrop: var(--color-modal-backdrop);
  --float-bar-bg: var(--color-float-bar);
  --vv-bottom: 0px;
  --safe-bottom: max(env(safe-area-inset-bottom, 0px), var(--vv-bottom));
  --shell-max: 960px;
  --shell-max-wide: 1280px;
  --shell-gutter: var(--space-4);
  --header-control: 2.25rem;
  --header-icon: 1.125rem;
}

@media (min-width: 640px) {
  :root {
    --shell-gutter: var(--space-6);
  }
}

html {
  color-scheme: light;
  scrollbar-color: var(--color-border) transparent;
  scrollbar-gutter: stable;
  touch-action: pan-x pan-y;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  transition:
    background-color var(--duration) var(--ease),
    color var(--duration) var(--ease);
}

/* 纸面微纹理：极轻噪点，不抢内容 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px 180px;
}

#app {
  position: relative;
  z-index: 1;
  min-height: 100%;
  min-height: 100svh;
}

::selection {
  background: color-mix(in srgb, var(--accent) 28%, transparent);
  color: var(--text);
}

:focus:not(:focus-visible) {
  outline: none;
}

a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 0.15em;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
}

/* —— 原生控件：禁用系统蓝，统一黑白灰主题 —— */

html,
body,
#app {
  -webkit-tap-highlight-color: color-mix(in srgb, var(--color-text) 10%, transparent);
}

#app button,
#app input,
#app select,
#app textarea,
#app label,
#app [role='button'],
#app [role='checkbox'],
#app [role='option'] {
  -webkit-tap-highlight-color: color-mix(in srgb, var(--color-text) 10%, transparent);
}

#app input:not([type='checkbox']):not([type='radio']):not([type='range']),
#app select,
#app textarea {
  accent-color: var(--color-primary);
  background-color: var(--bg);
  color: var(--text);
}

#app select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  cursor: pointer;
}

#app select option,
#app select optgroup {
  background-color: var(--bg);
  color: var(--text);
}

#app select option:checked,
#app select option:hover {
  background-color: var(--surface-hover);
  color: var(--text);
}

#app input[type='checkbox'],
#app input[type='radio'] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 1.125rem;
  height: 1.125rem;
  margin: 0;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
  background-color: var(--bg);
  cursor: pointer;
  transition:
    border-color var(--duration) var(--ease),
    background-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}

#app input[type='radio'] {
  border-radius: 50%;
}

#app input[type='checkbox'] {
  border-radius: var(--radius-sm);
}

#app input[type='checkbox']:checked {
  border-color: var(--text);
  background-color: var(--text);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.25' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: var(--icon-mark-size);
}

#app input[type='radio']:checked {
  border-color: var(--text);
  background-color: var(--bg);
  box-shadow: inset 0 0 0 3px var(--bg), inset 0 0 0 6px var(--text);
}

#app input[type='checkbox']:focus-visible,
#app input[type='radio']:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

#app input:-webkit-autofill,
#app input:-webkit-autofill:hover,
#app input:-webkit-autofill:focus,
#app textarea:-webkit-autofill,
#app textarea:-webkit-autofill:hover,
#app textarea:-webkit-autofill:focus,
#app select:-webkit-autofill,
#app select:-webkit-autofill:hover,
#app select:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--text);
  caret-color: var(--text);
  -webkit-box-shadow: 0 0 0 1000px var(--bg) inset;
  box-shadow: 0 0 0 1000px var(--bg) inset;
  transition: background-color 99999s ease-out;
}

#app input[type='range'] {
  accent-color: var(--color-primary);
}

#app input[type='range']::-webkit-slider-thumb {
  background-color: var(--text);
}

#app input[type='range']::-moz-range-thumb {
  background-color: var(--text);
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 300;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  font-size: var(--text-body-sm);
  font-weight: 600;
  transform: translateY(-120%);
  transition: transform var(--duration) var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-enter: 1ms;
    --duration-route-out: 1ms;
    --duration-route-in: 1ms;
  }

  .motion-spatial,
  .motion-spatial::before,
  .motion-spatial::after {
    animation: none !important;
    transition-property: color, background-color, border-color, opacity, outline-color, box-shadow !important;
    transform: none !important;
  }
}

/* —— App Shell —— */

.app-shell {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

html:has(.app-main--fill),
body:has(.app-main--fill) {
  height: 100svh;
  overflow: hidden;
  overscroll-behavior: none;
  scrollbar-gutter: auto;
}

.app-shell:has(.app-main--fill) {
  height: 100svh;
  max-height: 100svh;
  overflow: hidden;
  overscroll-behavior: none;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 200;
  flex-shrink: 0;
  padding: max(var(--space-1), env(safe-area-inset-top, 0px)) 0 var(--space-1);
  border-bottom: 1px solid var(--color-border-subtle);
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-2);
  min-height: var(--header-control);
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding-left: max(var(--shell-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--shell-gutter), env(safe-area-inset-right, 0px));
}

.app-shell:has(.app-main--wide) .header-bar {
  max-width: var(--shell-max-wide);
}

.header-side {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}

.header-side--start {
  justify-content: flex-start;
}

.header-side--end {
  justify-content: flex-end;
}

.header-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: var(--header-control);
  height: var(--header-control);
  margin: 0;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
  touch-action: pan-x pan-y;
  transition:
    color var(--duration) var(--ease),
    background-color var(--duration) var(--ease),
    border-color var(--duration) var(--ease);
}

@media (hover: hover) and (pointer: fine) {
  .header-back:hover {
    color: var(--text);
    background-color: var(--surface-hover);
    border-color: var(--color-border);
  }
}

.header-back:active {
  color: var(--text);
  background-color: #ebebeb;
  border-color: var(--color-border);
}

.header-back:focus {
  outline: none;
  background-color: var(--surface-hover);
}

.header-back:focus:not(:focus-visible) {
  background-color: transparent;
}

.header-back:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
  background-color: var(--surface-hover);
  color: var(--text);
}

.header-back.router-link-active,
.header-back.router-link-exact-active {
  background-color: transparent;
  color: var(--muted);
}

.header-side--start .header-back {
  margin-inline-start: calc((var(--header-icon) - var(--header-control)) / 2);
}

.header-side--end .header-back:last-child {
  margin-inline-end: calc((var(--header-icon) - var(--header-control)) / 2);
}

.header-text-btn {
  width: auto;
  min-width: 0;
  height: auto;
  min-height: 1.75rem;
  padding: 0 0.2rem;
  overflow: visible;
  white-space: nowrap;
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1;
}

.header-text-btn[aria-pressed='true'] {
  color: var(--text);
}

@media (hover: hover) and (pointer: fine) {
  .header-text-btn:hover {
    background-color: transparent;
    border-color: transparent;
    color: var(--text);
  }
}

.header-text-btn:active,
.header-text-btn:focus {
  background-color: transparent;
  border-color: transparent;
}

.header-text-btn:focus-visible {
  background-color: transparent;
}

.header-settings[aria-expanded='true'] {
  color: var(--text);
  background-color: var(--surface-hover);
  border-color: var(--color-border);
}

.header-title {
  margin: 0;
  padding: 0 var(--space-2);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: var(--leading-tight);
  text-align: center;
  letter-spacing: var(--tracking-title);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  max-width: 100%;
  justify-self: center;
}

.app-main {
  flex: 1;
  padding-top: var(--space-5);
  padding-bottom: max(var(--space-8), env(safe-area-inset-bottom, 0px));
  padding-left: max(var(--shell-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--shell-gutter), env(safe-area-inset-right, 0px));
  max-width: var(--shell-max);
  width: 100%;
  margin: 0 auto;
}

.app-main:focus {
  outline: none;
}

@media (min-width: 640px) {
  .app-main {
    padding-top: var(--space-6);
    padding-bottom: max(var(--space-10), env(safe-area-inset-bottom, 0px));
    padding-left: max(var(--shell-gutter), env(safe-area-inset-left, 0px));
    padding-right: max(var(--shell-gutter), env(safe-area-inset-right, 0px));
  }
}

.app-main--home {
  max-width: none;
  padding: 0;
}

@media (min-width: 640px) {
  .app-main--home {
    padding-inline: 0;
  }
}

.app-main--wide {
  max-width: var(--shell-max-wide);
}

.app-main--fill {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.app-main--full {
  max-width: none;
  padding: 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}

.fade-enter-active {
  transition: opacity var(--duration-route-in) var(--ease-out);
}

.fade-leave-active {
  transition: opacity var(--duration-route-out) var(--ease);
}

.fade-enter-from,
.fade-leave-to {
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .fade-enter-active,
  .fade-leave-active {
    transition-duration: 1ms;
  }
}

/* —— 通用布局与表单 —— */

/* 细线分区：无浮起卡片 */
.panel {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 0;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: var(--space-5);
}

.toolbar,
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.form-section .toolbar,
.form-section .actions {
  margin-bottom: 0;
}

.toolbar > .btn,
.actions > .btn,
.modal-actions > .btn {
  flex: 1 1 0;
  min-width: 0;
}

.field-group {
  margin-bottom: var(--space-4);
}

.field-group:last-child {
  margin-bottom: 0;
}

.field-label {
  display: block;
  font-size: var(--text-body-sm);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: var(--space-2);
}

.form-section-title {
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 var(--space-3);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
}

.form-section {
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.form-section:first-child {
  padding-top: 0;
}

.form-section:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-border);
  background-color: var(--bg);
  color: var(--text);
  font-size: var(--text-body);
  font-family: inherit;
  line-height: 1.45;
  caret-color: var(--text);
  -webkit-tap-highlight-color: transparent;
  transition:
    border-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease),
    background-color var(--duration) var(--ease);
}

select,
.select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  cursor: pointer;
  padding-right: 2.25rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

select option,
.select option {
  background-color: var(--bg);
  color: var(--text);
}

select:active,
.select:active,
select:focus,
.select:focus {
  background-color: var(--bg);
  color: var(--text);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--muted);
  opacity: 1;
}

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

.textarea--tall {
  min-height: 280px;
}

.textarea--mono {
  font-family: var(--font-mono);
  font-size: var(--text-body-sm);
}

.input--narrow {
  max-width: 360px;
}

.input:focus,
.textarea:focus,
.select:focus,
.input:focus-visible,
.textarea:focus-visible,
.select:focus-visible {
  outline: none;
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--accent-soft);
  background-color: var(--bg);
}

.sep {
  border: none;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-5) 0;
}

.result {
  margin: var(--space-2) 0 0;
  font-size: var(--text-body-sm);
  color: var(--muted);
}

.result strong {
  color: var(--text);
  font-weight: 600;
}

.form-error {
  margin: var(--space-3) 0 0;
  font-size: var(--text-body-sm);
  color: var(--danger);
}

/* 按钮 */
button {
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  touch-action: pan-x pan-y;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
  vertical-align: middle;
  line-height: 1.2;
  padding: 0.5625rem 1.125rem;
  min-height: 2.625rem;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-border);
  background-color: transparent;
  color: var(--text);
  font-size: var(--text-body-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-title);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
  touch-action: pan-x pan-y;
  transition:
    border-color var(--duration) var(--ease),
    background-color var(--duration) var(--ease),
    color var(--duration) var(--ease),
    opacity var(--duration) var(--ease),
    transform var(--duration) var(--ease);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover:not(:disabled) {
    border-color: var(--text);
    background: var(--surface-hover);
  }

  .btn.primary:hover:not(:disabled) {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
  }

  .btn.cta:hover:not(:disabled) {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
  }

  .btn.danger:hover:not(:disabled) {
    opacity: 0.9;
  }

  .btn.ghost:hover:not(:disabled) {
    border-color: var(--color-border-subtle);
  }
}

.btn:active:not(:disabled) {
  transform: translateY(1px);
  background: var(--surface-hover);
}

.btn:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--color-on-primary);
}

.btn.primary:active:not(:disabled) {
  background: var(--accent-hover);
}

.btn.cta {
  background: var(--accent-cta);
  border-color: var(--accent-cta);
  color: var(--color-on-primary);
}

.btn.danger {
  border-color: var(--danger);
  color: var(--color-on-primary);
  background: var(--danger);
}

.btn.ghost {
  background: transparent;
  border-color: transparent;
}

.btn.sm {
  padding: 0.375rem 0.75rem;
  min-height: 2.125rem;
  font-size: var(--text-body-sm);
}

.btn.flex-1 {
  flex: 1 1 0;
  min-width: 0;
}

/* 芯片：错题本筛选同款，勾选加粗 + 右下角钩 */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: visible;
}

.chip-legend {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--text-label-sm);
  font-weight: 400;
  letter-spacing: var(--tracking-label);
  color: var(--muted);
}

.chip-action {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0;
  min-height: 1.5rem;
  padding: 0.12rem 0.12rem;
  border: 0;
  border-radius: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: var(--text-body-sm);
  cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
  .chip-action:hover {
    color: var(--text);
  }
}

.chip-action:focus-visible {
  outline: none;
  box-shadow: 0 1px 0 0 var(--text);
}

.chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  padding: 0.12rem 0.2rem 0.14rem;
  overflow: visible;
  font-size: var(--text-body-sm);
  font-weight: 400;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.chip:has(input:checked) {
  color: var(--text);
}

.chip:has(input:focus-visible) {
  outline: none;
  box-shadow: 0 1px 0 0 var(--text);
}

.chip input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  background: none;
  box-shadow: none;
  outline: none;
  cursor: pointer;
}

/* 列表 */
.list-plain {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-plain li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  word-break: break-all;
}

.list-plain li:last-child {
  border-bottom: none;
}

.list-mono {
  font-family: var(--font-mono);
  font-size: var(--text-body-sm);
  font-variant-numeric: tabular-nums;
}

/* 弹窗 */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  overscroll-behavior: none;
  touch-action: none;
}

.modal {
  width: 100%;
  max-width: 480px;
  max-height: min(90vh, 720px);
  overflow: auto;
  overscroll-behavior: contain;
  touch-action: pan-x pan-y;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--bg);
}

.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
}

.modal-title {
  margin: 0;
  font-size: var(--text-title);
  font-weight: 600;
  letter-spacing: var(--tracking-title);
}

.icon-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: var(--text-title-lg);
  line-height: 1;
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  -webkit-tap-highlight-color: transparent;
}

.icon-btn:active {
  background-color: var(--surface-hover);
  color: var(--text);
}

@media (hover: hover) and (pointer: fine) {
  .icon-btn:hover {
    color: var(--text);
  }
}

.modal-form {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding-top: var(--space-1);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field.row-2 {
  flex-direction: row;
  gap: var(--space-4);
}

.field-inline {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
}

.file-upload-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-input);
  border: 1px solid var(--color-border);
  background: transparent;
  font-size: var(--text-body-sm);
  font-weight: 500;
  cursor: pointer;
  transition:
    border-color var(--duration) var(--ease),
    color var(--duration) var(--ease);
}

@media (hover: hover) and (pointer: fine) {
  .file-upload-label:hover {
    border-color: var(--text);
    color: var(--text);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.sheet-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-4);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
  color: var(--muted);
}

.sheet-empty p {
  margin: 0;
  font-size: var(--text-body-sm);
  line-height: var(--leading-body);
  max-width: 28rem;
}

/* View Transitions：目录标题 ↔ 工具页顶栏 */
@supports (view-transition-name: none) {
  ::view-transition-image-pair(root) {
    isolation: isolate;
  }

  ::view-transition-old(root) {
    animation: vt-root-out 160ms cubic-bezier(0.4, 0, 0.2, 1) both;
  }

  ::view-transition-new(root) {
    animation: vt-root-in 220ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  ::view-transition-group(.tool-title),
  ::view-transition-group(tool-clock),
  ::view-transition-group(tool-pinyin),
  ::view-transition-group(tool-pdf),
  ::view-transition-group(tool-wrong),
  ::view-transition-group(tool-unfold) {
    animation-duration: 340ms;
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1;
  }

  ::view-transition-old(.tool-title),
  ::view-transition-new(.tool-title),
  ::view-transition-old(tool-clock),
  ::view-transition-old(tool-pinyin),
  ::view-transition-old(tool-pdf),
  ::view-transition-old(tool-wrong),
  ::view-transition-old(tool-unfold),
  ::view-transition-new(tool-clock),
  ::view-transition-new(tool-pinyin),
  ::view-transition-new(tool-pdf),
  ::view-transition-new(tool-wrong),
  ::view-transition-new(tool-unfold) {
    height: auto;
    overflow: clip;
  }
}

@keyframes vt-root-out {
  to {
    opacity: 0;
  }
}

@keyframes vt-root-in {
  from {
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) {
    animation: none !important;
  }
}

/* —— 响应式与触控 —— */

@media (pointer: coarse), (any-pointer: coarse) {
  .btn {
    min-height: 2.75rem;
    padding: 0.625rem 1.25rem;
  }

  .btn.sm {
    min-height: 2.75rem;
    padding: 0.5625rem 1rem;
  }

  :root {
    --header-control: 2.5rem;
  }

  .header-back {
    width: var(--header-control);
    height: var(--header-control);
  }

  .header-text-btn {
    width: auto;
    min-width: 0;
    height: auto;
    min-height: 1.75rem;
    padding: 0 0.2rem;
  }

  .checkbox-label {
    min-height: 2.75rem;
  }

  .checkbox-label input[type='checkbox'] {
    width: 1.25rem;
    height: 1.25rem;
  }

  .chip {
    min-height: 2.25rem;
    padding: 0.22rem 0.28rem 0.24rem;
  }

  .chip-action {
    min-height: 2.25rem;
    padding: 0.22rem 0.2rem;
  }
}

@media (hover: none), (any-pointer: coarse) {
  .index-row:active {
    background: var(--text);
    color: var(--color-on-primary);
    box-shadow: -100vw 0 0 var(--text), 100vw 0 0 var(--text);
  }
}

@supports (-webkit-touch-callout: none) {
  #app input:not([type='checkbox']):not([type='radio']):not([type='range']),
  #app select,
  #app textarea {
    font-size: 16px;
  }
}
/* 本地勾/叉：同一 viewBox、线宽、落点，避免 CSS 描边和渐变叉各画一套 */
:root {
  --icon-mark-size: 0.92rem;
  --icon-mark-size-list: 0.7rem;
  --icon-mark-ok: url("data:image/svg+xml,%3csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='none'%3e%3cpath%20d='M20%206%209%2017l-5-5'%20stroke='%23000'%20stroke-width='2.25'%20stroke-linecap='round'%20stroke-linejoin='round'%20/%3e%3c/svg%3e");
  --icon-mark-fail: url("data:image/svg+xml,%3csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%2024%2024'%20fill='none'%3e%3cpath%20d='M18%206%206%2018'%20stroke='%23000'%20stroke-width='2.25'%20stroke-linecap='round'%20stroke-linejoin='round'%20/%3e%3cpath%20d='m6%206%2012%2012'%20stroke='%23000'%20stroke-width='2.25'%20stroke-linecap='round'%20stroke-linejoin='round'%20/%3e%3c/svg%3e");
}

.iconfont {
  display: inline-block;
  width: var(--icon-mark-size);
  height: var(--icon-mark-size);
  flex-shrink: 0;
  overflow: hidden;
  font-size: 0;
  line-height: 0;
  background-color: currentColor;
  -webkit-mask: var(--icon-mark) no-repeat center / contain;
  mask: var(--icon-mark) no-repeat center / contain;
  pointer-events: none;
  speak: never;
}

.iconfont.icon-ok {
  --icon-mark: var(--icon-mark-ok);
}

.iconfont.icon-fail {
  --icon-mark: var(--icon-mark-fail);
  color: var(--danger);
}

.chip:has(input:checked)::after,
.wb-drafts-chip:has(input:checked)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  width: var(--icon-mark-size);
  height: var(--icon-mark-size);
  border: 0;
  transform: translate(28%, 16%);
  opacity: 1;
  background-color: currentColor;
  -webkit-mask: var(--icon-mark-ok) no-repeat center / contain;
  mask: var(--icon-mark-ok) no-repeat center / contain;
  pointer-events: none;
}