:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --ink: #172033;
  --muted: #667085;
  --line: #d9e1ec;
  --accent: #1769e0;
  --accent-dark: #0f56bd;
  --accent-soft: #eaf2ff;
  --good: #0f8a5f;
  --warn: #ad5f00;
  --shadow: 0 12px 30px rgba(30, 42, 62, 0.08);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    "Microsoft YaHei",
    "PingFang SC",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 25;
  display: grid;
  place-items: center;
  min-height: 122px;
  padding: 20px 34px;
  background:
    linear-gradient(135deg, rgba(23, 105, 224, 0.1), rgba(15, 138, 95, 0.08)),
    #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 8px 22px rgba(30, 42, 62, 0.06);
  text-align: center;
}

.title-wrap {
  display: grid;
  gap: 8px;
  justify-items: center;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 30px;
  line-height: 1.2;
}

h2 {
  font-size: 18px;
}

.eyebrow {
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.title-sub {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid #8fc4a7;
  border-radius: 999px;
  background: linear-gradient(135deg, #ecfdf3, #eaf2ff);
  color: #087443;
  padding: 7px 18px;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 8px 20px rgba(15, 138, 95, 0.1);
}

.title-note {
  color: #475467;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 22px;
  padding: 22px 34px 34px;
}

.filters {
  position: sticky;
  top: 18px;
  align-self: start;
  display: grid;
  gap: 14px;
  max-height: calc(100vh - 36px);
  overflow: auto;
  padding-right: 2px;
}

.filter-section,
.results {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.filter-section {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.filter-section label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.field-title {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select,
input[type="number"],
input[type="search"] {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 8px 10px;
  outline: none;
}

select:focus,
input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.score-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.score-grid h2,
.score-grid .hint {
  grid-column: 1 / -1;
}

.score-grid label:first-of-type {
  grid-column: 1 / -1;
}

.hint {
  color: var(--muted);
  font-size: 13px;
}

.section-title-row,
.group-head,
.toolbar,
.major-class-head,
.result-head,
.school-line,
.major-line,
.meta-line,
.stats,
.active-summary {
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title-row,
.toolbar,
.major-class-head,
.result-head {
  justify-content: space-between;
}

.ghost-button,
.primary-button,
.small-button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.ghost-button,
.small-button {
  padding: 6px 10px;
}

.primary-button {
  width: 100%;
  margin-top: 2px;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.primary-button:hover {
  background: var(--accent-dark);
}

.province-groups {
  display: grid;
  gap: 10px;
}

.province-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.group-head {
  justify-content: space-between;
  padding: 10px;
  background: var(--bg);
}

.group-title {
  font-weight: 800;
}

.group-actions {
  display: flex;
  gap: 6px;
}

.province-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  padding: 10px;
}

.province-list label {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 500;
}

.subject-options,
.exclude-options {
  display: grid;
  gap: 8px;
}

.subject-options {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.subject-options label,
.exclude-options label,
.tuition-control {
  display: flex;
  align-items: center;
  gap: 7px;
}

.subject-options label,
.exclude-options label {
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.tuition-control input[type="number"] {
  min-width: 0;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.segmented label {
  display: block;
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented span {
  display: flex;
  justify-content: center;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  align-items: center;
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
}

.segmented input:checked + span {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.results {
  min-height: 680px;
  padding: 18px;
}

.toolbar {
  align-items: flex-start;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.active-summary {
  justify-content: flex-end;
  flex-wrap: wrap;
  max-width: 55%;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 800;
}

.stats {
  flex-wrap: wrap;
  margin: 16px 0;
}

.major-class-panel {
  margin-top: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}

.major-class-head {
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.major-class-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: 70%;
}

.direction-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.direction-tag {
  min-height: 28px;
  border: 1px solid #ffd1a6;
  border-radius: 999px;
  background: #fff7ed;
  color: #9a3412;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.direction-tag:hover {
  border-color: #fb923c;
  background: #ffedd5;
}

.major-class-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 8px;
  max-height: 220px;
  overflow: auto;
  padding-right: 4px;
}

.major-class-list label {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  min-height: 34px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.major-class-list span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

.major-class-list em {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.major-class-list label.hot-major-option,
.hot-major-group {
  border-color: #f0b7b7;
  background: #fff7f7;
}

.hot-major-head {
  background: #fff1f1;
}

.major-class-empty {
  padding: 14px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.stat {
  min-width: 132px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.stat strong {
  display: block;
  margin-top: 3px;
  font-size: 20px;
}

.result-list {
  display: grid;
  gap: 14px;
}

.result-group {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

.result-head {
  padding: 12px 14px;
  background: #f9fbff;
  border-bottom: 1px solid var(--line);
}

.result-head h3 {
  font-size: 17px;
}

.result-head .count {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.result-items {
  display: grid;
}

.result-row {
  display: grid;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid #edf1f6;
}

.result-row:last-child {
  border-bottom: 0;
}

.school-line,
.major-line,
.meta-line {
  flex-wrap: wrap;
}

.school-name,
.major-name {
  font-size: 16px;
  font-weight: 900;
}

.major-name {
  color: var(--accent-dark);
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 2px 7px;
  border-radius: 6px;
  background: #f1f4f8;
  color: #344054;
  font-size: 12px;
}

.tag.hot-major-tag {
  border: 1px solid #f0b7b7;
  background: #ffecec;
  color: #b42318;
  font-weight: 800;
}

.copy-ai-button {
  min-height: 24px;
  border: 1px solid #b8cdf0;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.wish-button {
  min-height: 24px;
  border: 1px solid #b7d7c4;
  border-radius: 6px;
  background: #ecfdf3;
  color: #087443;
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.wish-button:hover,
.wish-button.added {
  border-color: #12b76a;
  background: #12b76a;
  color: #fff;
}

.copy-ai-button:hover,
.copy-ai-button.copied {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.score {
  color: var(--good);
  font-weight: 900;
}

.diff {
  color: var(--warn);
  font-weight: 800;
}

.muted {
  color: var(--muted);
}

.empty {
  padding: 38px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  text-align: center;
}

.wishlist-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 20;
  min-height: 46px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  box-shadow: 0 14px 32px rgba(23, 105, 224, 0.28);
  font-weight: 900;
  cursor: pointer;
}

.wishlist-float span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  margin-left: 8px;
  border-radius: 999px;
  background: #fff;
  color: var(--accent);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  background: rgba(15, 23, 42, 0.38);
  padding: 20px;
}

.wishlist-modal {
  width: min(920px, 100%);
  max-height: min(760px, 92vh);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
  overflow: hidden;
}

.qr-modal,
.export-modal {
  position: relative;
  width: min(420px, 100%);
  display: grid;
  justify-items: center;
  gap: 12px;
  border-radius: 8px;
  background: #fff;
  padding: 24px;
  text-align: center;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.24);
}

.qr-modal img,
.export-modal img {
  width: min(300px, 82vw);
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.qr-modal p,
.export-modal p {
  color: var(--muted);
  line-height: 1.6;
}

.export-modal label {
  display: grid;
  gap: 7px;
  width: 100%;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  text-align: left;
}

.export-modal .primary-button {
  width: 100%;
}

.export-error {
  width: 100%;
  color: #b42318 !important;
  font-size: 13px;
  text-align: left;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  padding: 4px 9px;
  cursor: pointer;
}

.wishlist-head,
.wishlist-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.wishlist-footer {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  color: var(--muted);
  font-size: 13px;
}

.wishlist-footer .primary-button {
  width: auto;
  min-width: 120px;
  margin: 0;
  padding: 7px 14px;
}

.wishlist-list {
  overflow: auto;
  padding: 12px 16px;
}

.wishlist-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid #edf1f6;
}

.wishlist-item strong {
  min-width: 0;
  overflow-wrap: anywhere;
}

.wishlist-item span {
  color: var(--muted);
  font-size: 13px;
}

.wishlist-item button {
  grid-row: 1 / span 2;
  grid-column: 2;
}

@media (max-width: 1040px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .filters {
    position: static;
  }

  .active-summary {
    max-width: none;
    justify-content: flex-start;
  }

  .major-class-actions {
    max-width: none;
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .app-header,
  .toolbar {
    display: grid;
  }

  .app-header,
  .layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .score-grid,
  .segmented {
    grid-template-columns: 1fr;
  }

  .province-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wishlist-head,
  .wishlist-footer {
    display: grid;
  }

  .wishlist-item {
    grid-template-columns: 1fr;
  }

  .wishlist-item button {
    grid-row: auto;
    grid-column: auto;
    justify-self: start;
  }
}