/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */
@layer properties;
@layer theme, base, components, utilities;
@layer theme {
  :root, :host {
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
      "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
      "Segoe UI Symbol", "Noto Color Emoji";
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
      "Courier New", monospace;
    --default-font-family: var(--font-sans);
    --default-mono-font-family: var(--font-mono);
    --color-secondary: #737373;
  }
}
@layer base {
  *, ::after, ::before, ::backdrop, ::file-selector-button {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0 solid;
  }
  html, :host {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    font-family: var(--default-font-family, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");
    font-feature-settings: var(--default-font-feature-settings, normal);
    font-variation-settings: var(--default-font-variation-settings, normal);
    -webkit-tap-highlight-color: transparent;
  }
  hr {
    height: 0;
    color: inherit;
    border-top-width: 1px;
  }
  abbr:where([title]) {
    -webkit-text-decoration: underline dotted;
    text-decoration: underline dotted;
  }
  h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
  }
  a {
    color: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
  }
  b, strong {
    font-weight: bolder;
  }
  code, kbd, samp, pre {
    font-family: var(--default-mono-font-family, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
    font-feature-settings: var(--default-mono-font-feature-settings, normal);
    font-variation-settings: var(--default-mono-font-variation-settings, normal);
    font-size: 1em;
  }
  small {
    font-size: 80%;
  }
  sub, sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
  }
  sub {
    bottom: -0.25em;
  }
  sup {
    top: -0.5em;
  }
  table {
    text-indent: 0;
    border-color: inherit;
    border-collapse: collapse;
  }
  :-moz-focusring:where(:not(iframe)) {
    outline: auto;
  }
  progress {
    vertical-align: baseline;
  }
  summary {
    display: list-item;
  }
  ol, ul, menu {
    list-style: none;
  }
  img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    vertical-align: middle;
  }
  img, video {
    max-width: 100%;
    height: auto;
  }
  button, input, select, optgroup, textarea, ::file-selector-button {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    border-radius: 0;
    background-color: transparent;
    opacity: 1;
  }
  :where(select:is([multiple], [size])) optgroup {
    font-weight: bolder;
  }
  :where(select:is([multiple], [size])) optgroup option {
    padding-inline-start: 20px;
  }
  ::file-selector-button {
    margin-inline-end: 4px;
  }
  ::placeholder {
    opacity: 1;
  }
  @supports (not (-webkit-appearance: -apple-pay-button))  or (contain-intrinsic-size: 1px) {
    ::placeholder {
      color: currentcolor;
      @supports (color: color-mix(in lab, red, red)) {
        color: color-mix(in oklab, currentcolor 50%, transparent);
      }
    }
  }
  textarea {
    resize: vertical;
  }
  ::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  ::-webkit-date-and-time-value {
    min-height: 1lh;
    text-align: inherit;
  }
  ::-webkit-datetime-edit {
    display: inline-flex;
  }
  ::-webkit-datetime-edit-fields-wrapper {
    padding: 0;
  }
  ::-webkit-datetime-edit, ::-webkit-datetime-edit-year-field, ::-webkit-datetime-edit-month-field, ::-webkit-datetime-edit-day-field, ::-webkit-datetime-edit-hour-field, ::-webkit-datetime-edit-minute-field, ::-webkit-datetime-edit-second-field, ::-webkit-datetime-edit-millisecond-field, ::-webkit-datetime-edit-meridiem-field {
    padding-block: 0;
  }
  ::-webkit-calendar-picker-indicator {
    line-height: 1;
  }
  :-moz-ui-invalid {
    box-shadow: none;
  }
  button, input:where([type="button"], [type="reset"], [type="submit"]), ::file-selector-button {
    appearance: button;
  }
  ::-webkit-inner-spin-button, ::-webkit-outer-spin-button {
    height: auto;
  }
  [hidden]:where(:not([hidden="until-found"])) {
    display: none !important;
  }
}
@layer utilities {
  .visible {
    visibility: visible;
  }
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border-width: 0;
  }
  .fixed {
    position: fixed;
  }
  .static {
    position: static;
  }
  .block {
    display: block;
  }
  .contents {
    display: contents;
  }
  .hidden {
    display: none;
  }
  .inline {
    display: inline;
  }
  .shrink {
    flex-shrink: 1;
  }
  .grow {
    flex-grow: 1;
  }
  .ordinal {
    --tw-ordinal: ordinal;
    font-variant-numeric: var(--tw-ordinal,) var(--tw-slashed-zero,) var(--tw-numeric-figure,) var(--tw-numeric-spacing,) var(--tw-numeric-fraction,);
  }
  .blur {
    --tw-blur: blur(8px);
    filter: var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,);
  }
  .filter {
    filter: var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,);
  }
}
:root {
  --background: #fff;
  --ink: #171717;
  --muted: #737373;
  --line: #eaeaea;
  --soft: #f7f7f7;
  --blue: #477ba3;
  --blue-soft: #f0f6fb;
  --nav-height: 76px;
  --keyboard-zindex: 1000;
}
* {
  box-sizing: border-box;
}
html {
  background: var(--background);
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
a,
input,
textarea,
select,
math-field {
  -webkit-tap-highlight-color: transparent;
}
button,
a {
  touch-action: manipulation;
}
button {
  cursor: pointer;
  color: inherit;
  border: 0;
  background: none;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a,
input,
select,
textarea {
  transition: background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    opacity 180ms ease,
    transform 180ms ease;
}
button:disabled {
  opacity: 0.42;
  cursor: default;
}
button:focus-visible,
a:focus-visible,
select:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #83aaca;
  outline-offset: 4px;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
h1,
h2,
h3,
h4 {
  font-weight: 600;
  letter-spacing: -0.035em;
}
h2 {
  font-size: 25px;
  line-height: 1.45;
}
h3 {
  font-size: 17px;
}
strong {
  font-weight: 600;
}
svg {
  flex-shrink: 0;
}
fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}
.muted {
  color: var(--muted);
}
.small-text {
  font-size: 12px;
  line-height: 1.8;
}
.centered {
  text-align: center;
}
.full {
  width: 100%;
}
.grow {
  flex: 1;
  min-width: 0;
}
.page {
  width: 100%;
  max-width: 672px;
  min-height: 100dvh;
  padding: 32px 32px
    calc(var(--nav-height) + env(safe-area-inset-bottom) + 48px);
  margin: 0 auto;
  animation: appear 180ms ease;
}
.page-header {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  margin: 0 -8px 38px;
}
.page-header h1 {
  font-size: 18px;
  flex: 1;
}
.header-right {
  display: flex;
  align-items: center;
  padding-right: 8px;
}
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  min-width: 44px;
  height: 44px;
  border-radius: 14px;
}
.icon-button:hover:not(:disabled) {
  background: var(--soft);
}
.button {
  min-height: 52px;
  padding: 12px 20px;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  border-radius: 17px;
  font-weight: 500;
  font-size: 15px;
  line-height: 1.6;
  border: 1px solid transparent;
}
.button.primary {
  background: var(--ink);
  color: #fff;
}
.button.primary:hover:not(:disabled) {
  background: #343434;
}
.button.secondary {
  background: #fff;
  border-color: #e2e2e2;
}
.button.secondary:hover:not(:disabled) {
  background: var(--soft);
  border-color: #ccc;
}
.button.compact {
  min-height: 44px;
  padding: 9px 15px;
  font-size: 13px;
  border-radius: 14px;
}
.button-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}
.quiet-button,
.text-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 8px 4px;
  font-size: 13px;
  color: var(--muted);
}
.quiet-button:hover:not(:disabled),
.text-button:hover:not(:disabled) {
  color: var(--ink);
}
.text-button {
  color: var(--ink);
}
.text-link {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  min-height: 44px;
  font-size: 13px;
}
.input {
  display: block;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #dfdfdf;
  background: #fff;
  border-radius: 14px;
  color: var(--ink);
  min-height: 52px;
  line-height: 1.8;
  resize: vertical;
}
.input::placeholder {
  color: #aaa;
}
.input:focus {
  border-color: #9fb7ca;
  outline: none;
  box-shadow: 0 0 0 3px #f3f7fa;
}
.field-label {
  display: block;
  font-size: 13px;
  color: #565656;
  margin-bottom: 10px;
}
.section-intro {
  margin-bottom: 32px;
}
.section-intro h2 {
  margin-top: 10px;
}
.section-intro p {
  color: var(--muted);
  font-size: 14px;
  margin-top: 10px;
}
.eyebrow {
  font-size: 10px;
  color: #8c8c8c;
  letter-spacing: 0.14em;
  font-weight: 500;
}
.section-title {
  font-size: 17px;
  margin-bottom: 12px;
}
.section-heading,
.card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.section-heading .section-title {
  margin-bottom: 0;
}
.section-heading {
  margin-bottom: 16px;
}
.subtle-label {
  color: #858585;
  font-size: 12px;
}
.section-divider {
  height: 1px;
  background: var(--line);
  margin: 32px 0;
}
.home-page {
  max-width: 648px;
  display: flex;
  flex-direction: column;
  padding-top: 64px;
}
.home-header {
  margin-bottom: 48px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -0.07em;
}
.brand-mark {
  display: flex;
  gap: 4px;
  width: 29px;
  height: 26px;
  align-items: center;
  transform: skew(-14deg);
}
.brand-mark i {
  display: block;
  width: 5px;
  height: 21px;
  border-radius: 2px;
  background: var(--ink);
}
.brand-mark i:nth-child(2) {
  height: 27px;
}
.home-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.install-guide {
  position: fixed;
  inset: auto 0 0;
  margin: 0 auto;
  padding: 0;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  width: 100%;
  max-width: 672px;
  height: 50dvh;
  max-height: 50dvh;
  min-width: 0;
  background: #fff;
  color: var(--ink);
  overflow: hidden;
  box-shadow: 0 -12px 48px #00000012;
}
.install-guide[open] {
  display: flex;
  flex-direction: column;
}
.install-guide::backdrop {
  background: #0000001f;
}
.install-guide-handle {
  flex-shrink: 0;
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: #d8d8d8;
  margin: 10px auto 16px;
}
.install-guide-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 0 max(20px, env(safe-area-inset-right)) 16px max(20px, env(safe-area-inset-left));
  flex-shrink: 0;
}
.install-guide-heading > div {
  flex: 1;
  min-width: 0;
}
.install-guide-close {
  margin-top: -8px;
  margin-right: -8px;
}
.install-guide-content {
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 0 max(20px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
}
.install-guide-heading > svg {
  margin-top: 3px;
}
.install-guide-heading h2 {
  font-size: 16px;
  letter-spacing: 0;
}
.install-guide-heading p, .install-guide-footnote, .install-guide-notice {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}
.install-guide-devices {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.install-guide-devices button {
  flex: 1;
  min-height: 44px;
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 12px;
  border: 1px solid var(--line);
}
.install-guide-devices button[aria-pressed="true"] {
  background: var(--soft);
  border-color: #bdbdbd;
}
.install-guide ol {
  margin: 16px 0;
  padding-left: 20px;
  list-style: decimal;
  font-size: 13px;
  line-height: 1.85;
}
.install-guide li + li {
  margin-top: 10px;
}
.install-guide li svg {
  display: inline-block;
  margin: 0 3px;
  vertical-align: -2px;
}
.feature-card {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 28px;
  min-height: 132px;
  border: 1px solid #e5e5e5;
  border-radius: 24px;
  background: #fff;
}
.feature-card:hover {
  border-color: #c9c9c9;
  background: #fcfcfc;
  transform: translateY(-1px);
}
.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  background: #f6f6f6;
  border-radius: 18px;
}
.feature-copy {
  display: flex;
  flex: 1;
  min-width: 0;
  flex-direction: column;
  gap: 7px;
}
.feature-copy strong {
  font-size: 18px;
  letter-spacing: -0.02em;
}
.feature-copy > span {
  font-size: 13px;
  color: var(--muted);
}
.feature-chevron {
  color: #999;
}
.feature-card.locked {
  background: #fafafa;
  border-color: #efefef;
}
.feature-card.locked .feature-icon {
  background: #f2f2f2;
  color: #a0a0a0;
}
.feature-card.locked strong {
  color: #8c8c8c;
}
.feature-card.locked .feature-copy > span,
.feature-card.locked .feature-chevron {
  color: #a0a0a0;
}
.bottom-nav {
  position: fixed;
  z-index: 30;
  left: 0;
  right: 0;
  bottom: 0;
  padding-bottom: env(safe-area-inset-bottom);
  background: #fff;
  border-top: 1px solid #f0f0f0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  height: var(--nav-height);
  max-width: 520px;
  margin: 0 auto;
}
.nav-item {
  color: #acacac;
  flex: 1;
  display: flex;
  min-height: 60px;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}
.nav-item.selected {
  color: var(--ink);
  font-weight: 600;
}
.simple-heading {
  margin: 24px 0 42px;
}
.simple-heading h1 {
  font-size: 26px;
}
.profile-card {
  display: flex;
  gap: 20px;
  align-items: center;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}
.avatar {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f5f5;
  color: #898989;
  border-radius: 24px;
  flex-shrink: 0;
}
.avatar.large {
  width: 80px;
  height: 80px;
  border-radius: 29px;
}
.row-copy {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}
.row-copy strong {
  font-size: 15px;
}
.row-copy > span {
  font-size: 12px;
  color: #898989;
}
.profile-card strong {
  font-size: 20px;
}
.me-list {
  margin-top: 12px;
}
.ai-model-list .list-row {
  min-height: 76px;
  gap: 12px;
  padding: 20px 0;
}
.ai-model-list .row-copy {
  flex: 1;
}
.ai-status {
  color: #888;
  font-size: 13px;
  white-space: nowrap;
}
.ai-default {
  color: #555;
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid #e9e9e9;
  border-radius: 4px;
}
.ai-provider-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 26px;
}
.ai-provider-heading h2 {
  font-size: 24px;
}
.ai-footnote {
  font-size: 12px;
  color: #888;
  line-height: 1.9;
  margin: 22px 0;
}
.ai-key-input {
  position: relative;
  margin-bottom: 24px;
}
.ai-key-input .input {
  padding-right: 50px;
  width: 100%;
  font-size: 16px;
}
.ai-key-input .icon-button {
  position: absolute;
  top: 50%;
  right: 4px;
  transform: translateY(-50%);
}
.ai-advanced {
  margin: 0 0 24px;
}
.ai-advanced summary {
  color: #777;
  cursor: pointer;
  font-size: 13px;
}
.ai-advanced .field-label {
  margin-top: 18px;
}
.ai-advanced .input {
  width: 100%;
}
.ai-key-link {
  display: block;
  margin: 26px 0 0;
  font-size: 14px;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.ai-manage-actions {
  display: grid;
  gap: 14px;
}
.list-row {
  display: flex;
  gap: 18px;
  min-height: 100px;
  align-items: center;
  border-bottom: 1px solid #f0f0f0;
  padding: 20px 0;
}
.list-icon {
  width: 40px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.list-row .row-copy strong {
  font-size: 16px;
}
.row-count {
  font-size: 12px;
  color: #999;
}
.empty-state {
  padding: 64px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 25px;
  color: #929292;
  background: #f6f6f6;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}
.empty-state h2 {
  font-size: 20px;
}
.empty-state p {
  font-size: 13px;
  color: #8b8b8b;
  max-width: 340px;
  line-height: 1.9;
}
.empty-state .button {
  margin-top: 12px;
}
.capture-intro {
  text-align: center;
  padding: 48px 0 36px;
}
.capture-viewfinder {
  width: 112px;
  height: 112px;
  color: #9a9a9a;
  margin: 0 auto 32px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.capture-viewfinder i {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: #cacaca;
  border-style: solid;
  border-width: 0;
}
.capture-viewfinder i:nth-child(1) {
  top: 0;
  left: 0;
  border-top-width: 2px;
  border-left-width: 2px;
  border-top-left-radius: 14px;
}
.capture-viewfinder i:nth-child(2) {
  top: 0;
  right: 0;
  border-top-width: 2px;
  border-right-width: 2px;
  border-top-right-radius: 14px;
}
.capture-viewfinder i:nth-child(3) {
  bottom: 0;
  left: 0;
  border-bottom-width: 2px;
  border-left-width: 2px;
  border-bottom-left-radius: 14px;
}
.capture-viewfinder i:nth-child(4) {
  bottom: 0;
  right: 0;
  border-bottom-width: 2px;
  border-right-width: 2px;
  border-bottom-right-radius: 14px;
}
.capture-intro h2 {
  margin-bottom: 12px;
}
.capture-intro p {
  color: #888;
  font-size: 13px;
}
.capture-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.question-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px 24px 24px;
}
.question-card .card-heading {
  margin-bottom: 18px;
}
.question-body {
  font-size: 17px;
  line-height: 2.15;
  overflow-wrap: anywhere;
}
.math-text {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.math-inline {
  display: inline-block;
  max-width: 100%;
  vertical-align: middle;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 1px;
}
.math-inline .katex {
  font-size: 1.12em;
}
.math-display {
  display: block;
  overflow-x: auto;
  max-width: 100%;
}
.confirm-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 24px;
  margin-top: 24px;
  font-size: 16px;
}
.confirm-options p {
  display: flex;
  gap: 12px;
  align-items: center;
  min-width: 0;
}
.confirm-options p > span:first-child {
  color: #919191;
  font-size: 13px;
}
.original-photo {
  margin: 0 0 20px;
  font-size: 12px;
  color: #888;
}
details summary {
  cursor: pointer;
  min-height: 44px;
}
.original-photo summary {
  padding: 12px 0;
}
.original-photo img {
  max-width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: 16px;
}
.edit-question {
  margin-top: 24px;
  padding: 22px;
  background: #fafafa;
  border-radius: 20px;
}
.edit-question .small-text {
  margin: 12px 0 20px;
}
.option-edit {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.option-edit > span {
  font-size: 13px;
  width: 16px;
}
.option-edit .math-input-wrap {
  flex: 1;
  min-width: 0;
}
.question-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-size: 11px;
  color: #969696;
  margin-bottom: 24px;
}
.solve-question {
  margin-top: 16px;
}
.solve-mode-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}
.hint-thread {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}
.hint-bubble {
  background: #f7f8f9;
  border-radius: 20px;
  padding: 20px;
  font-size: 15px;
  line-height: 1.9;
}
.hint-label {
  display: flex;
  gap: 6px;
  align-items: center;
  color: #8a8a8a;
  font-size: 11px;
  margin-bottom: 10px;
}
.student-step {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid #e7e7e7;
}
.student-step > span {
  display: block;
  font-size: 11px;
  color: #8b8b8b;
  margin-bottom: 4px;
}
.solution-steps {
  margin: 20px 0 30px;
}
.solution-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.step-number {
  color: #aaa;
  font-size: 11px;
  padding-top: 8px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.solution-step p {
  flex: 1;
  min-width: 0;
  font-size: 15px;
  line-height: 2.15;
}
.archive-action {
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.solve-next-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}
.solve-next-actions .button {
  padding: 12px 10px;
  font-size: 14px;
}
.quick-practice-question {
  margin: 24px 0;
  font-size: 16px;
}
.quick-practice-submit {
  margin-top: 24px;
}
.archive-action .small-text {
  margin-top: 12px;
}
.segmented {
  padding: 4px;
  display: flex;
  background: #f5f5f5;
  border-radius: 16px;
  gap: 4px;
}
.segmented button {
  flex: 1;
  min-height: 44px;
  border-radius: 12px;
  color: #8a8a8a;
  font-size: 14px;
}
.segmented button.active {
  background: #fff;
  color: #222;
  box-shadow: 0 1px 4px #0000000a;
}
.tab-bar {
  display: flex;
  gap: 28px;
  border-bottom: 1px solid var(--line);
  margin: 24px 0;
}
.tab-bar button {
  min-height: 52px;
  padding: 8px 0;
  font-size: 14px;
  color: #999;
  position: relative;
}
.tab-bar button.active {
  color: #222;
  font-weight: 600;
}
.tab-bar button.active::after {
  content: "";
  position: absolute;
  height: 2px;
  border-radius: 2px;
  background: #222;
  bottom: -1px;
  left: 0;
  right: 0;
}
.answer-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.answer-option {
  min-height: 66px;
  border: 1px solid #e7e7e7;
  border-radius: 18px;
  padding: 15px 20px;
  width: 100%;
  display: flex;
  gap: 18px;
  align-items: center;
  text-align: left;
}
.answer-option:hover:not(:disabled) {
  border-color: #aab7c1;
}
.answer-option.selected {
  border-color: #a7c1d6;
  background: #f5f9fc;
}
.option-letter {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 12px;
  color: #787878;
  background: #f5f5f5;
  flex-shrink: 0;
}
.option-letter.square {
  border-radius: 9px;
}
.selected .option-letter {
  background: #e7f0f7;
  color: #4e799b;
}
.answer-option .math-text {
  font-size: 16px;
  min-width: 0;
}
.math-input-wrap {
  position: relative;
  width: 100%;
}
.math-input {
  min-height: 58px;
  border: 1px solid #dedede;
  border-radius: 15px;
  background: #fff;
  padding: 4px 38px 4px 8px;
}
.math-input:focus-within {
  border-color: #a7bfd0;
  box-shadow: 0 0 0 3px #f3f7fa;
}
math-field {
  display: block;
  width: 100%;
  border: none;
  background: none;
  min-height: 48px;
  padding: 8px;
  font-size: 19px;
  outline: none;
  --caret-color: #5b8ab1;
  --selection-background-color: #deebf5;
  --contains-highlight-background-color: #eef4f8;
}
math-field::part(virtual-keyboard-toggle) {
  display: none;
}
math-field::part(menu-toggle) {
  display: none;
}
.math-keyboard-button {
  position: absolute;
  right: 2px;
  top: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: #939393;
}
.math-loading {
  position: absolute;
  top: 17px;
  left: 18px;
  color: #aaa;
  font-size: 12px;
}
.math-keyboard-actions {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 1100;
  background: #fff;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.math-keyboard-actions-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 16px;
  margin: 0 auto;
  max-width: 1040px;
}
.math-keyboard-actions-inner > span {
  color: var(--muted);
  font-size: 13px;
}
.math-keyboard-done {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 76px;
  min-height: 44px;
  color: #171717;
  font-size: 15px;
  font-weight: 600;
  border-radius: 14px;
  corner-shape: superellipse(1.585);
  transition: background-color 180ms;
}
.math-keyboard-done:hover {
  background: #f5f5f5;
}
.math-keyboard-done:active {
  background: #ededed;
}
.fill-answer .small-text {
  margin-top: 12px;
}
.steps-editor {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.written-answer {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.written-answer .field-label {
  margin: 0;
}
.answer-textarea {
  min-height: 132px;
  line-height: 1.8;
  resize: vertical;
}
.written-answer > .quiet-button {
  align-self: flex-start;
}
.written-answer > .small-text {
  margin: 0;
}
.answer-preview {
  min-width: 0;
  padding: 10px 0;
}
.answer-preview summary {
  color: #777;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 8px;
}
.saved-answer {
  white-space: pre-wrap;
}
.subjective-answer.disabled {
  pointer-events: none;
  opacity: 0.65;
}
.answer-step {
  border: 1px solid #e5e5e5;
  border-radius: 18px;
  overflow: hidden;
}
.answer-step-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px 0 16px;
}
.answer-step-heading label {
  font-size: 11px;
  color: #a0a0a0;
}
.inline-actions {
  display: flex;
}
.inline-actions .icon-button {
  color: #a1a1a1;
  border-radius: 10px;
}
.step-textarea {
  width: 100%;
  display: block;
  min-height: 110px;
  padding: 4px 16px 16px;
  line-height: 1.9;
  border: 0;
  background: transparent;
  resize: vertical;
  font-size: 14px;
  outline: none;
}
.step-textarea:focus-visible {
  outline: none;
}
.answer-step:focus-within {
  border-color: #a7bfd0;
}
.step-textarea::placeholder {
  color: #b0b0b0;
  font-size: 12px;
}
.step-preview {
  padding: 12px 16px;
  background: #fafafa;
  border-top: 1px solid #f0f0f0;
  font-size: 14px;
}
.step-formulas {
  padding: 8px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.step-formula {
  display: flex;
  align-items: center;
  border-radius: 12px;
  background: #f8f8f8;
  min-width: 0;
}
.formula-edit {
  min-height: 44px;
  text-align: left;
  padding: 8px 12px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
}
.step-formula > .icon-button {
  color: #aaa;
}
.formula-insert {
  padding: 16px;
  border-top: 1px solid #f0f0f0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.answer-tools {
  display: flex;
  gap: 24px;
  border-top: 1px solid #f0f0f0;
  padding-top: 8px;
  margin-top: 8px;
}
.question-part {
  margin-bottom: 28px;
}
.part-body {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 18px;
  font-size: 15px;
  line-height: 2;
}
.part-body .math-text {
  min-width: 0;
}
.part-points {
  margin-left: auto;
  font-size: 11px;
  white-space: nowrap;
  color: #aaa;
  padding-top: 6px;
}
.answer-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}
.answer-images > div {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.answer-images img {
  width: 100%;
  height: 130px;
  object-fit: contain;
  background: #fafafa;
}
.answer-images button {
  position: absolute;
  top: 2px;
  right: 2px;
  background: #fff;
}
.handwriting-canvas {
  display: block;
  width: 100%;
  height: 280px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  touch-action: none;
  margin-top: 20px;
}
.saved-answer {
  padding: 14px 16px;
  border-radius: 14px;
  background: #f8f8f8;
  font-size: 14px;
  margin: 12px 0 20px;
  overflow-wrap: anywhere;
}
.saved-answer p {
  margin: 4px 0;
}
.saved-answer img {
  max-width: 100%;
  max-height: 280px;
  border-radius: 12px;
  margin-top: 12px;
}
.saved-answer > div > strong {
  display: block;
  font-size: 12px;
  margin-top: 14px;
}
.analysis-section {
  margin: 32px 0;
}
.analysis-section > h3 {
  margin-bottom: 18px;
}
.result-item {
  border-bottom: 1px solid var(--line);
}
.result-item summary {
  display: flex;
  gap: 14px;
  align-items: center;
  list-style: none;
  padding: 18px 0;
}
.result-item summary::-webkit-details-marker {
  display: none;
}
.result-item summary > svg {
  color: #aaa;
}
.result-item[open] summary > svg {
  transform: rotate(90deg);
}
.result-number {
  color: #999;
  font-size: 12px;
  width: 20px;
  flex-shrink: 0;
}
.result-item .row-copy strong {
  font-size: 13px;
}
.result-item .row-copy > span {
  font-size: 10px;
}
.status-tag {
  display: inline-flex;
  gap: 4px;
  font-size: 10px;
  align-items: center;
  white-space: nowrap;
}
.status-tag.correct {
  color: #668471;
}
.status-tag.incorrect {
  color: #9a735d;
}
.status-tag.review {
  color: #999;
}
.result-detail {
  padding: 8px 0 24px;
}
.result-detail .question-body {
  font-size: 15px;
}
.result-detail h4 {
  font-size: 13px;
  margin-top: 22px;
}
.recommendation {
  background: #f8f8f8;
  border-radius: 20px;
  padding: 22px;
  margin: 26px 0;
}
.recommendation h3 {
  font-size: 14px;
  margin-bottom: 10px;
}
.recommendation p {
  font-size: 12px;
  color: #8a8a8a;
  line-height: 1.95;
}
.training-source {
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
}
.training-source h3 {
  font-size: 18px;
  margin: 16px 0 10px;
}
.source-question {
  font-size: 13px;
  line-height: 2;
  color: #787878;
}
.training-source .text-button {
  font-size: 11px;
  margin-top: 4px;
}
.training-plan {
  margin: 24px 0;
}
.training-plan > div {
  display: flex;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #f0f0f0;
  align-items: flex-start;
}
.plan-number {
  color: #a1a1a1;
  font-size: 12px;
  padding-top: 4px;
}
.training-plan strong {
  font-size: 14px;
}
.training-plan p {
  font-size: 12px;
  color: #999;
  margin-top: 6px;
}
.training-question {
  margin: 32px 0 44px;
  font-size: 19px;
}
.training-hints {
  padding: 20px;
  background: #f7f8f9;
  border-radius: 20px;
  margin: 24px 0;
}
.training-hints p {
  font-size: 14px;
  line-height: 2;
}
.training-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 24px 0;
}
.training-actions .small-text {
  font-size: 10px;
}
.training-feedback {
  margin: 30px 0;
  padding: 22px;
  border: 1px solid #e4eae6;
  border-radius: 20px;
  background: #f8fbf9;
}
.training-feedback.incorrect {
  border-color: #eee6df;
  background: #fcfaf7;
}
.training-feedback.review {
  background: #fafafa;
  border-color: var(--line);
}
.training-feedback p {
  font-size: 13px;
  margin: 12px 0 8px;
  line-height: 1.9;
}
.written-steps {
  font-size: 12px;
  color: #888;
  margin: 20px 0;
}
.written-steps summary {
  padding: 12px 0;
}
.written-steps > p {
  color: #555;
  line-height: 2;
  padding: 12px;
  background: #fafafa;
  border-radius: 12px;
  margin-bottom: 8px;
}
.training-finished {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 12px 0 24px;
}
.finished-icon {
  background: #f6f8f6;
  color: #7e9684;
  border-radius: 26px;
  width: 80px;
  height: 80px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 28px;
}
.training-finished h2 {
  margin: 10px 0;
}
.training-finished p {
  color: #999;
  font-size: 12px;
}
.training-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 16px 0 32px;
}
.training-summary > div {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.training-summary strong {
  font-size: 28px;
  font-weight: 500;
}
.training-summary small {
  font-size: 12px;
  color: #aaa;
  font-weight: 400;
}
.training-summary span {
  font-size: 11px;
  color: #999;
}
.compact-intro {
  margin-bottom: 30px;
}
.compact-intro h2 {
  font-size: 23px;
  margin-top: 0;
}
.filter-row {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.filter-row label {
  flex: 1;
  min-width: 0;
}
.filter-row select {
  width: 100%;
  min-height: 44px;
  padding: 8px 24px 8px 12px;
  border-radius: 12px;
  border: 1px solid #e9e9e9;
  font-size: 11px;
  color: #737373;
  background: #fff;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  text-overflow: ellipsis;
}
.mistake-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.mistake-card {
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: 22px;
}
.mistake-card:hover {
  border-color: #ccc;
}
.mistake-card-link {
  display: block;
}
.mistake-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
  gap: 5px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.mistake-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 42px;
  padding: 6px 3px;
  border: 0;
  border-radius: 10px;
  font-size: 11px;
  color: #777;
  background: transparent;
  white-space: nowrap;
  cursor: pointer;
}
.mistake-action:hover {
  background: #f5f5f5;
}
.mistake-action:focus-visible {
  outline: 2px solid #667d70;
  outline-offset: 2px;
}
.mistake-action.is-mastered {
  color: #53725e;
  background: #eef4ef;
}
.mistake-action.is-unmastered {
  color: #666;
  background: #f3f3f3;
}
.mistake-action.mistake-repractice {
  color: #333;
}
.mistake-knowledge {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin: 18px 0 8px;
}
.mistake-knowledge-label {
  color: #888;
  font-size: 10px;
}
.mistake-knowledge-label small {
  margin-left: 6px;
  color: #aaa;
  font-size: 9px;
}
.mistake-knowledge-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.mistake-knowledge-tags > span {
  background: #f6f7f6;
  border-radius: 6px;
  padding: 5px 8px;
  color: #626e65;
  font-size: 11px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.classification-pending {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  font-size: 11px;
  color: #999;
  line-height: 1.7;
}
.classification-pending button, .classification-pending a {
  color: #617a69;
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.mistake-card .card-heading {
  align-items: flex-start;
  gap: 12px;
}
.mistake-card .card-heading > .subtle-label {
  line-height: 1.6;
}
.mistake-delete {
  min-height: 44px;
  min-width: 44px;
  color: #a55848;
}
.mistake-open {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  min-height: 40px;
  min-width: 44px;
}
.mistake-delete-description {
  color: var(--color-secondary);
  font-size: 14px;
  line-height: 1.8;
}
.mistake-delete-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}
.mastery-tag {
  font-size: 10px;
  color: #999;
  white-space: nowrap;
}
.mastery-tag.practicing {
  color: #7090a9;
}
.mastery-tag.mastered {
  color: #72917e;
}
.mistake-preview {
  margin: 18px 0;
  font-size: 14px;
  line-height: 1.9;
  max-height: 130px;
  overflow: hidden;
}
.mistake-footer {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #999;
  align-items: center;
}
.library-question {
  margin: 30px 0;
  font-size: 17px;
}
.cause-text {
  font-size: 13px;
  color: #888;
  line-height: 1.9;
  margin-bottom: 28px;
}
.cause-editor {
  margin-bottom: 28px;
}
.cause-editor .button {
  margin-top: 12px;
}
.practice-history {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  margin: 30px 0;
}
.practice-history > p {
  font-size: 12px;
  margin: 12px 0;
}
.attempt-row {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid #f3f3f3;
  color: #999;
}
.attempt-row > span {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.attempt-row strong {
  font-size: 12px;
  color: #555;
}
.attempt-row span span {
  font-size: 10px;
}
.insufficient-note {
  display: flex;
  gap: 12px;
  padding: 20px;
  border: 1px solid #ececec;
  border-radius: 18px;
  margin: 24px 0 32px;
  color: #999;
}
.insufficient-note > svg {
  margin-top: 3px;
}
.insufficient-note strong {
  color: #777;
  font-size: 13px;
}
.insufficient-note p {
  font-size: 12px;
  line-height: 1.9;
  margin-top: 8px;
}
.analysis-list > div {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.analysis-number {
  font-size: 11px;
  color: #aaa;
  padding-top: 4px;
}
.analysis-list h3 {
  font-size: 16px;
}
.analysis-list p {
  font-size: 11px;
  color: #aaa;
  margin-top: 6px;
}
.analysis-list .analysis-advice {
  font-size: 12px;
  color: #777;
  margin-top: 12px;
  line-height: 1.9;
}
.analysis-cause {
  padding: 14px 0;
  border-bottom: 1px solid #f2f2f2;
  color: #888;
  font-size: 12px;
  line-height: 1.9;
}
.record-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.record-icon {
  padding-top: 4px;
  color: #8c8c8c;
}
.record-card .row-copy strong {
  font-size: 13px;
  line-height: 1.9;
}
.record-card .row-copy > span {
  font-size: 10px;
}
.record-card .row-copy .record-meta {
  font-size: 11px;
  color: #858585;
  margin-top: 6px;
}
.record-card > svg {
  margin-top: 6px;
  color: #aaa;
}
.profile-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 0 32px;
}
.profile-intro h2 {
  margin: 28px 0 10px;
  font-size: 23px;
}
.profile-intro p {
  font-size: 12px;
  color: #999;
  max-width: 310px;
  line-height: 1.9;
}
.account-page {
  display: flex;
  flex-direction: column;
  max-width: 520px;
  padding-bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + 24px);
}
.account-page .page-header {
  margin-bottom: 12px;
}
.account-form {
  display: flex;
  flex: 1;
  flex-direction: column;
}
.account-intro {
  padding: 8px 0 24px;
}
.account-intro .avatar {
  width: 64px;
  height: 64px;
  border-radius: 24px;
}
.account-intro h2 {
  margin: 16px 0 8px;
}
.account-current {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin: -24px 0 28px;
}
.account-current strong {
  color: var(--ink);
  margin-left: 8px;
  letter-spacing: 2px;
}
.account-boxes {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
}
.account-box {
  width: 100%;
  min-width: 0;
  height: 64px;
  border: 1px solid #dedede;
  border-radius: 13px;
  background: #fafafa;
  color: var(--ink);
  text-align: center;
  font-size: 25px;
  font-weight: 600;
  caret-color: var(--blue);
}
.account-box::placeholder {
  color: #c5c5c5;
  font-weight: 400;
}
.account-box:focus {
  background: #fff;
  border-color: var(--blue);
  outline: 2px solid var(--blue-soft);
  outline-offset: 2px;
}
.account-number-start {
  border-left-color: #a6b9c8;
}
.account-guide {
  display: grid;
  grid-template-columns: 2fr 4fr;
  gap: 8px;
  margin-top: 10px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
.account-guide span {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}
.account-example {
  margin-top: 16px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}
.account-example strong {
  color: var(--ink);
  letter-spacing: 1px;
}
.account-password {
  margin-top: 24px;
}
.account-password-input {
  position: relative;
}
.account-password-input .input {
  padding-right: 48px;
  font-size: 16px;
}
.account-password-input .icon-button {
  position: absolute;
  top: 5px;
  right: 4px;
}
.account-error {
  min-height: 32px;
  margin-top: 8px;
  font-size: 12px;
  color: #b44436;
}
.account-actions {
  margin-top: auto;
  padding-top: 16px;
  text-align: center;
}
.account-actions p {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
}
.account-actions .account-local-note {
  margin: 14px 0 0;
  font-size: 11px;
  color: #929292;
}
@media (max-width: 360px) {
  .account-boxes {
    gap: 6px;
  }
  .account-box {
    height: 52px;
    border-radius: 10px;
    font-size: 22px;
  }
}
.modal-overlay {
  position: fixed;
  z-index: 100;
  inset: 0;
  background: #00000030;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: appear 180ms ease;
}
.modal {
  background: #fff;
  padding: 24px;
  border-radius: 26px;
  width: 100%;
  max-width: 440px;
  max-height: calc(100dvh - 48px);
  overflow-y: auto;
  outline: none;
  box-shadow: 0 20px 70px #00000012;
}
.modal-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: -4px -8px 12px 0;
}
.modal-heading h2 {
  font-size: 21px;
}
.modal-copy {
  font-size: 14px;
  color: #7c7c7c;
  line-height: 1.95;
  margin: 8px 0 28px;
}
.modal-copy strong {
  color: #222;
}
.loading-state {
  min-height: 160px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 16px;
  color: #929292;
  font-size: 12px;
}
.spin {
  animation: spin 900ms linear infinite;
}
.error-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px;
  background: #fbf7f3;
  border: 1px solid #eee6df;
  border-radius: 16px;
  font-size: 12px;
  color: #96735a;
  margin: 20px 0;
}
.error-notice svg {
  margin-top: 2px;
}
.error-notice > span {
  flex: 1;
}
.error-notice button {
  min-width: 44px;
  min-height: 44px;
  margin: -10px -8px -10px 0;
  font-weight: 600;
}
.global-banner {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: center;
  font-size: 11px;
  color: #7e8c97;
  background: #f4f7f9;
  padding: 10px 20px;
}
.global-banner.storage-warning {
  color: #92775d;
  background: #faf6f1;
}
.global-banner:first-child {
  padding-top: calc(10px + env(safe-area-inset-top));
}
.toast {
  position: fixed;
  z-index: 150;
  bottom: calc(var(--nav-height) + env(safe-area-inset-bottom) + 20px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 48px);
  background: #292929;
  color: #fff;
  padding: 13px 18px;
  font-size: 12px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 4px 20px #00000010;
  animation: toast-appear 180ms ease;
}
@supports (corner-shape: superellipse(1.585)) {
  .feature-card,
  .feature-icon,
  .button,
  .input,
  .avatar,
  .question-card,
  .hint-bubble,
  .training-source,
  .mistake-card,
  .modal,
  .answer-option,
  .answer-step,
  .math-input,
  .recommendation,
  .insufficient-note,
  .toast,
  .empty-icon {
    corner-shape: superellipse(1.585);
  }
}
@keyframes appear {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes toast-appear {
  from {
    opacity: 0;
    transform: translate(-50%, 4px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@media (min-width: 900px) {
  .page {
    padding-top: 48px;
  }
  .home-page {
    padding-top: 92px;
  }
  .home-header {
    margin-bottom: 56px;
  }
  .capture-intro {
    padding-top: 64px;
  }
}
@media (max-width: 600px) {
  :root {
    --nav-height: 72px;
  }
  .page {
    padding: calc(20px + env(safe-area-inset-top)) 24px
      calc(var(--nav-height) + env(safe-area-inset-bottom) + 36px);
  }
  .page-header {
    margin-bottom: 28px;
  }
  .home-page {
    padding-top: max(52px, calc(20px + env(safe-area-inset-top)));
  }
  .home-header {
    margin-bottom: 40px;
  }
  .brand {
    font-size: 26px;
  }
  .feature-card {
    padding: 22px 20px;
    min-height: 116px;
    gap: 16px;
    border-radius: 22px;
  }
  .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 16px;
  }
  .feature-icon svg {
    width: 25px;
    height: 25px;
  }
  .feature-copy {
    gap: 6px;
  }
  .feature-copy strong {
    font-size: 17px;
  }
  .feature-copy > span {
    font-size: 11px;
  }
  .feature-chevron {
    width: 15px;
  }
  .home-features {
    gap: 14px;
  }
  .simple-heading {
    margin: 20px 0 36px;
  }
  .capture-intro {
    padding-top: 38px;
  }
  .capture-intro h2,
  .section-intro h2 {
    font-size: 23px;
  }
  .section-intro p {
    font-size: 12px;
  }
  .capture-intro p {
    font-size: 12px;
  }
  .question-card {
    padding: 16px 18px 22px;
  }
  .question-body {
    font-size: 16px;
  }
  .edit-question {
    padding: 18px;
  }
  .answer-option {
    min-height: 64px;
    padding: 14px 16px;
  }
  .question-meta {
    font-size: 10px;
    gap: 10px;
  }
  .result-item summary {
    gap: 10px;
  }
  .result-item .row-copy strong {
    font-size: 12px;
  }
  .training-source {
    padding: 18px 20px;
  }
  .training-source h3 {
    font-size: 17px;
  }
  .training-question {
    font-size: 17px;
  }
  .filter-row {
    gap: 6px;
  }
  .filter-row select {
    font-size: 10px;
    padding-left: 10px;
  }
  .modal-overlay {
    padding: 20px;
  }
  .modal {
    padding: 22px;
  }
  .modal .button-row {
    gap: 10px;
  }
  .modal .button-row .button {
    font-size: 13px;
    padding: 12px;
  }
  .handwriting-canvas {
    height: 230px;
  }
  .input, textarea, select {
    font-size: 16px;
  }
}
@media (max-width: 1024px) and (pointer: coarse) {
  .page {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
  .bottom-nav {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .modal-overlay {
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  }
  .modal {
    max-height: calc(100dvh - max(16px, env(safe-area-inset-top)) - max(16px, env(safe-area-inset-bottom)));
  }
  .input, textarea, select {
    font-size: 16px;
  }
}
@media (max-width: 360px) {
  .page {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  .feature-card {
    padding: 20px 16px;
    gap: 12px;
  }
  .button-row {
    flex-wrap: wrap;
  }
}
@media (max-height: 500px) and (orientation: landscape) {
  .home-page {
    padding-top: max(24px, env(safe-area-inset-top));
  }
  .home-header {
    margin-bottom: 24px;
  }
  .capture-intro {
    padding-top: 16px;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}
.answer-options.source-options {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: 12px;
  margin-top: 24px;
}
.source-options .answer-option {
  display: flex;
  justify-content: center;
  min-height: 54px;
  padding: 12px;
  border: 1px solid #eaeaea;
  border-radius: 16px;
}
.source-options .answer-option .option-letter {
  flex: 0 0 28px;
}
.source-figures {
  min-width: 0;
  width: 100%;
}
.source-image {
  display: block;
  width: 100%;
  height: auto;
}
.source-zoom {
  font-size: 13px;
  color: #737373;
  margin: 0 0 8px;
}
.source-zoom-content {
  overflow: auto;
  max-height: 70dvh;
}
.source-zoom-content img {
  display: block;
  width: 100%;
  height: auto;
  margin: 12px 0 24px;
}
.modal.modal-wide {
  width: min(980px, calc(100vw - 32px));
  max-width: 980px;
}
.source-note {
  color: #8a8a8a;
  font-size: 12px;
  line-height: 1.8;
  margin: 16px 0 24px;
}
.reference-solution {
  margin: 24px 0;
}
.source-image-frame {
  width: 100%;
  margin: 12px 0;
  overflow: hidden;
}
.source-figures .source-image {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  height: auto;
}
.source-zoom::after {
  content: none;
}
.source-zoom-content {
  overflow-x: hidden;
}
.source-zoom-content img {
  width: 100%;
  min-width: 0;
  max-width: 100%;
}
.typeset-question {
  font-size: 17px;
  line-height: 2.1;
}
.typeset-question .part-body {
  margin-top: 24px;
}
.typeset-options .answer-option {
  align-items: center;
}
.typeset-options .math-text {
  flex: 1;
  min-width: 0;
}
.math-inline.math-fit {
  display: inline;
  overflow: visible;
  padding: 0;
  vertical-align: baseline;
}
.math-display.math-fit {
  width: 100%;
  overflow: visible;
}
.math-fit .katex-display {
  margin: .7em 0;
}
.typeset-solution .solution-step {
  align-items: start;
}
.typeset-solution .solution-step p {
  font-size: 16px;
  line-height: 2.05;
  min-width: 0;
}
@media (max-width: 480px) {
  .typeset-question {
    font-size: 16px;
    line-height: 2.1;
  }
  .typeset-options .answer-option {
    padding: 15px 16px;
    gap: 14px;
  }
  .typeset-options .math-text {
    font-size: 16px;
  }
  .typeset-solution .solution-step p {
    font-size: 15px;
  }
  .confirm-options:has(.math-fit) {
    grid-template-columns: 1fr;
  }
}
.ai-model-settings {
  margin-bottom: 24px;
}
.ai-model-settings .input {
  width: 100%;
}
.ai-model-settings .ai-footnote {
  margin: 10px 0 20px;
}
.ai-photo-check {
  padding: 20px;
  background: #f8f8f8;
  border-radius: 16px;
}
.ai-photo-check strong {
  font-size: 15px;
}
.ai-photo-check p {
  font-size: 13px;
  line-height: 1.8;
  color: #777;
  margin: 10px 0 16px;
  overflow-wrap: anywhere;
}
.weakness-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.weakness-progress {
  background: #f3f5f1;
  border-radius: 16px;
  padding: 18px;
  margin: 20px 0;
}
.weakness-report h2 {
  font-size: 20px;
  margin: 32px 0 16px;
}
.weakness-card {
  border: 1px solid #e2e5df;
  border-radius: 14px;
  padding: 16px;
  margin: 12px 0;
  overflow-wrap: anywhere;
}
.weakness-card summary {
  cursor: pointer;
  font-weight: 600;
  line-height: 1.7;
}
.weakness-card p, .weakness-sections section {
  margin: 14px 0;
}
.weakness-sections h4 {
  margin-bottom: 8px;
}
.weakness-report .math-text {
  white-space: pre-wrap;
  line-height: 1.9;
}
.weakness-report .math-display {
  overflow-x: auto;
  max-width: 100%;
}
.quick-practice-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #999;
  font-size: 11px;
  line-height: 1.6;
}
.quick-practice-meta > span:last-child {
  white-space: nowrap;
}
.quick-practice-questions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 16px;
}
.quick-practice-questions button {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: #888;
  background: #fff;
  font-size: 12px;
  cursor: pointer;
}
.quick-practice-questions button[aria-current="step"] {
  background: #292929;
  color: white;
  border-color: #292929;
}
.quick-practice-modes {
  margin-bottom: 22px;
}
.quick-practice-modes button {
  font-size: 12px;
  padding: 8px 3px;
  white-space: nowrap;
}
.quick-practice-modes button[aria-pressed="true"] {
  background: #fff;
  color: #222;
  border-radius: 12px;
  box-shadow: 0 1px 5px #00000008;
}
.quick-practice-panel .hint-bubble {
  padding: 16px;
  font-size: 13px;
}
.quick-practice-panel .section-title {
  font-size: 15px;
}
.quick-practice-panel .section-heading {
  gap: 12px;
}
.quick-practice-panel .solution-step p {
  font-size: 14px;
}
.quick-practice-panel .button-row .button {
  padding: 12px 6px;
  font-size: 12px;
}
.quick-practice-bottom {
  border-top: 1px solid var(--line);
  padding-top: 18px;
  margin-top: 22px;
}
.quick-practice-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}
.quick-practice-pagination .quiet-button {
  min-height: 44px;
  font-size: 12px;
}
.quick-practice-pagination button:disabled {
  opacity: .35;
  cursor: default;
}
.quick-practice-remaining {
  font-size: 10px;
  line-height: 1.6;
  color: #999;
  margin: 4px 0 0;
  text-align: center;
}
.guide-chat-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}
.guide-chat-heading .section-title {
  margin-bottom: 2px;
}
.guide-chat-heading p {
  margin: 0;
}
.guide-exit {
  flex-shrink: 0;
  font-size: 12px;
  padding-top: 3px;
}
.guide-conversation {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 20px 0;
}
.guide-message {
  max-width: 94%;
  min-width: 0;
  line-height: 1.85;
  overflow-wrap: anywhere;
}
.guide-message.assistant {
  align-self: flex-start;
}
.guide-message.user {
  align-self: flex-end;
  background: var(--surface, #f5f5f5);
  padding: 12px 16px;
  border-radius: 16px 16px 4px 16px;
}
.guide-speaker {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 5px;
}
.guide-thinking {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
}
.guide-composer {
  position: relative;
  margin-top: 20px;
}
.guide-composer textarea {
  resize: vertical;
  padding: 14px 54px 14px 14px;
  min-height: 100px;
}
.guide-send {
  position: absolute;
  right: 10px;
  bottom: 12px;
  min-height: 34px;
  width: 34px;
  padding: 7px;
  border-radius: 50%;
}
.guide-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
  margin: 8px 0 16px;
}
.guide-tools button {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}
@media (max-width: 420px) {
  .guide-chat-heading {
    flex-wrap: wrap;
  }
  .guide-exit {
    margin-left: auto;
  }
}
.guide-chat-heading {
  position: sticky;
  top: 0;
  z-index: 12;
  background: var(--background, #fff);
  padding: 12px 0;
}
.guide-scroll-anchor {
  height: 1px;
  scroll-margin-bottom: calc(var(--nav-height) + 28px);
}
.weakness-chapter {
  padding: 20px;
  margin: 20px 0;
  background: #fff;
}
.weakness-chapter > h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-size: 19px;
  line-height: 1.5;
}
.weakness-chapter-number {
  color: #92968f;
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}
.weakness-content {
  min-width: 0;
  font-size: 15px;
}
.weakness-content > h3 {
  margin: 24px 0 12px;
  padding-top: 18px;
  border-top: 1px solid #eef0eb;
  font-size: 16px;
}
.weakness-content > h3:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}
.weakness-content > p {
  margin: 0 0 14px;
}
.weakness-content > :last-child {
  margin-bottom: 0;
}
.weakness-points {
  list-style: none;
  padding: 0;
  margin: 12px 0 20px;
}
.weakness-points > li {
  position: relative;
  padding-left: 15px;
  margin: 0 0 18px;
}
.weakness-points > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #979c92;
}
.weakness-points > li:last-child {
  margin-bottom: 0;
}
.weakness-point-label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
  color: #252923;
}
.weakness-content .math-text {
  line-height: 1.85;
}
.weakness-topic {
  padding: 18px 0;
  border-top: 1px solid #eef0eb;
}
.weakness-topic:first-child {
  padding-top: 0;
  border-top: 0;
}
.weakness-topic:last-child {
  padding-bottom: 0;
}
.weakness-topic > h3 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
}
.weakness-topic > .weakness-points {
  margin: 0;
}
.weakness-topic .weakness-points > li {
  margin-bottom: 12px;
}
.record-archive-error {
  flex-basis: 100%;
  grid-column: 1 / -1;
  margin: 4px 0;
  color: #a74737;
  font-size: 12px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
.local-storage-actions {
  display: grid;
  gap: 32px;
  margin-top: 36px;
}
.local-storage-action {
  width: 100%;
  min-height: 52px;
  padding: 14px 20px;
  background: #fff;
  border: 1px solid #d8d8d8;
  border-radius: 12px;
  color: #171717;
  font-size: 16px;
  text-align: center;
}
.local-storage-action:disabled {
  opacity: .5;
  cursor: wait;
}
.local-storage-actions p {
  margin: 10px 0 0;
  color: #666;
  font-size: 13px;
  text-align: center;
}
.local-storage-feedback {
  margin-top: 28px;
  font-size: 14px;
  text-align: center;
}
.storage-undo {
  position: fixed;
  z-index: 100;
  bottom: max(88px, env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: min(92vw, 430px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: #fff;
  color: #171717;
  border: 1px solid #bdbdbd;
  border-radius: 12px;
  font-size: 14px;
}
.storage-undo button {
  padding: 8px;
  color: #171717;
  font-weight: 600;
  text-decoration: underline;
}
.library-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 20px 0;
  font-size: 13px;
}
.migration-session {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  margin: 48px auto;
  width: 100%;
  max-width: 420px;
  text-align: center;
}
.migration-qr {
  width: min(280px, 100%);
  height: auto;
  image-rendering: pixelated;
}
.migration-camera {
  width: 100%;
  max-height: 360px;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid #ddd;
}
.migration-status {
  font-size: 18px;
  color: #111;
}
.migration-hint {
  font-size: 13px;
  color: #666;
}
.migration-session progress {
  width: 100%;
  height: 6px;
  accent-color: #111;
}
.migration-session .local-storage-action {
  width: 100%;
}
.token-form {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  padding: 20px 0 32px;
}
.token-intro {
  text-align: center;
  margin-bottom: 32px;
}
.token-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 22px;
  background: var(--blue-soft);
  color: var(--blue);
}
.token-intro p {
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}
.token-current {
  margin: -16px 0 24px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
.token-current strong {
  color: var(--ink);
  margin-left: 6px;
}
.token-field {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--soft);
}
.token-field:focus-within {
  border-color: var(--blue);
  outline: 2px solid var(--blue-soft);
  outline-offset: 2px;
}
.token-field .input {
  border: 0;
  border-radius: 0;
  background: transparent;
  font-size: 16px;
}
.token-field .input:focus {
  outline: none;
  box-shadow: none;
}
.token-tools {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  padding: 0 14px 10px;
}
.token-tools button {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  padding: 4px 0;
  color: var(--muted);
  font-size: 12px;
}
.token-tools button:disabled {
  opacity: .4;
  cursor: default;
}
.token-help {
  display: block;
  margin: 20px auto 0;
  padding: 8px;
  font-size: 12px;
  color: var(--muted);
}
.token-help span {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.token-logout {
  margin-top: 20px;
  font-size: 13px;
}
.token-contact {
  margin: 14px 0 28px;
  text-align: center;
  font-size: 16px;
}
.token-contact strong {
  font-weight: 600;
}
@property --tw-ordinal {
  syntax: "*";
  inherits: false;
}
@property --tw-slashed-zero {
  syntax: "*";
  inherits: false;
}
@property --tw-numeric-figure {
  syntax: "*";
  inherits: false;
}
@property --tw-numeric-spacing {
  syntax: "*";
  inherits: false;
}
@property --tw-numeric-fraction {
  syntax: "*";
  inherits: false;
}
@property --tw-blur {
  syntax: "*";
  inherits: false;
}
@property --tw-brightness {
  syntax: "*";
  inherits: false;
}
@property --tw-contrast {
  syntax: "*";
  inherits: false;
}
@property --tw-grayscale {
  syntax: "*";
  inherits: false;
}
@property --tw-hue-rotate {
  syntax: "*";
  inherits: false;
}
@property --tw-invert {
  syntax: "*";
  inherits: false;
}
@property --tw-opacity {
  syntax: "*";
  inherits: false;
}
@property --tw-saturate {
  syntax: "*";
  inherits: false;
}
@property --tw-sepia {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-color {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-alpha {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 100%;
}
@property --tw-drop-shadow-size {
  syntax: "*";
  inherits: false;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@layer properties {
  @supports ((-webkit-hyphens: none) and (not (margin-trim: inline))) or ((-moz-orient: inline) and (not (color:rgb(from red r g b)))) {
    *, ::before, ::after, ::backdrop {
      --tw-ordinal: initial;
      --tw-slashed-zero: initial;
      --tw-numeric-figure: initial;
      --tw-numeric-spacing: initial;
      --tw-numeric-fraction: initial;
      --tw-blur: initial;
      --tw-brightness: initial;
      --tw-contrast: initial;
      --tw-grayscale: initial;
      --tw-hue-rotate: initial;
      --tw-invert: initial;
      --tw-opacity: initial;
      --tw-saturate: initial;
      --tw-sepia: initial;
      --tw-drop-shadow: initial;
      --tw-drop-shadow-color: initial;
      --tw-drop-shadow-alpha: 100%;
      --tw-drop-shadow-size: initial;
    }
  }
}