:root {
  color-scheme: light;
  --color-primary: #123e45;
  --color-primary-strong: #0b3137;
  --color-primary-soft: #e6efed;
  --color-background: #f7f5ef;
  --color-surface: #ffffff;
  --color-text: #182326;
  --color-muted: #687578;
  --color-accent: #a9782f;
  --color-accent-soft: #f5ead5;
  --color-border: #dce3df;
  --color-border-strong: #bdcac5;
  --color-danger-soft: #f8e8e4;
  --color-focus: #d89a34;
  --shadow-dialog: 0 24px 70px rgba(14, 39, 43, 0.2);
  --radius-sm: 9px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --content-width: 1120px;
  --header-height: 56px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 76px);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--color-background);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
select,
input[type="checkbox"],
input[type="radio"] {
  cursor: pointer;
}

button {
  color: inherit;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-primary-strong);
  font-weight: 700;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-height);
  border-bottom: 1px solid rgba(220, 227, 223, 0.85);
  background: rgba(247, 245, 239, 0.94);
  backdrop-filter: blur(14px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100%, var(--content-width));
  height: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  min-width: 0;
  color: var(--color-primary-strong);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.brand__prefix {
  color: var(--color-accent);
}

.brand__dot {
  margin: 0 2px;
  color: var(--color-muted);
}

.text-button,
.footer-link {
  min-height: 44px;
  padding: 0 4px;
  border: 0;
  background: transparent;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 650;
}

.text-button:hover,
.footer-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 5%, rgba(169, 120, 47, 0.1), transparent 34%),
    var(--color-background);
}

.hero__inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
  padding: 28px 16px 24px;
}

.hero__kicker {
  margin: 0 0 4px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: clamp(30px, 9vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.04em;
}

.hero__intro {
  margin: 10px 0 20px;
  color: var(--color-muted);
  font-size: 15px;
}

.search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  min-height: 52px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 8px 24px rgba(14, 39, 43, 0.07);
}

.search:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(18, 62, 69, 0.12);
}

.search__icon {
  display: grid;
  place-items: center;
  width: 44px;
  color: var(--color-muted);
}

.search input {
  min-width: 0;
  height: 50px;
  padding: 0 4px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--color-text);
  font-size: 16px;
}

.search input::placeholder {
  color: #849092;
}

.search__submit {
  min-width: 68px;
  min-height: 44px;
  margin-right: 4px;
  padding: 0 14px;
  border: 0;
  border-radius: 9px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 750;
}

.search__submit:hover {
  background: var(--color-primary-strong);
}

.quick-topics {
  margin-top: 18px;
}

.quick-topics__label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.quick-topics__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-chip {
  min-height: 40px;
  padding: 8px 13px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 650;
}

.topic-chip:hover,
.topic-chip[aria-pressed="true"] {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.topic-chip--more {
  border-style: dashed;
  color: var(--color-muted);
}

.results {
  min-height: 50vh;
  background: var(--color-surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.results__inner {
  width: min(100%, var(--content-width));
  margin: 0 auto;
}

.results-toolbar {
  position: sticky;
  top: var(--header-height);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
}

.results-toolbar__title h2 {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: 18px;
  line-height: 1.25;
}

.results-toolbar__title p {
  margin: 3px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.results-toolbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-button,
.sort-control select {
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
}

.control-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 11px;
}

.sort-control select {
  max-width: 110px;
  padding: 0 27px 0 10px;
}

.filter-count {
  display: inline-grid;
  place-items: center;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: #76501c;
  font-size: 12px;
}

.active-state {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  background: #fbfcfa;
}

.scope-summary {
  margin: 0;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 8px;
}

.active-filter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 5px 9px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 13px;
}

.active-filter button {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 16px;
  line-height: 1;
}

.policy-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.policy-item {
  border-bottom: 1px solid var(--color-border);
}

.policy-link {
  display: block;
  padding: 19px 16px 18px;
  text-decoration: none;
  transition: background-color 140ms ease;
}

.policy-link:hover {
  background: #fafbf9;
}

.policy-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 7px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
}

.policy-meta__dot {
  color: var(--color-border-strong);
}

.policy-title {
  margin: 0;
  color: var(--color-text);
  font-size: 17px;
  font-weight: 720;
  line-height: 1.55;
  letter-spacing: -0.015em;
}

.policy-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
}

.policy-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.policy-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
}

.policy-tag--related {
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-muted);
}

.source-action {
  flex: 0 0 auto;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 750;
  white-space: nowrap;
}

.empty-state {
  padding: 64px 24px 72px;
  text-align: center;
}

.empty-state h3 {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: 20px;
}

.empty-state p {
  max-width: 360px;
  margin: 8px auto 20px;
  color: var(--color-muted);
  font-size: 14px;
}

.load-more-wrap {
  padding: 24px 16px 36px;
  text-align: center;
}

.primary-button,
.secondary-button {
  min-height: 46px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 750;
}

.primary-button {
  border: 1px solid var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.primary-button:hover {
  background: var(--color-primary-strong);
}

.secondary-button {
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  color: var(--color-primary);
}

.secondary-button:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.load-more {
  width: min(100%, 320px);
}

.site-footer {
  padding: 32px 16px calc(34px + env(safe-area-inset-bottom));
  background: var(--color-background);
  color: var(--color-muted);
  text-align: center;
  font-size: 13px;
}

.site-footer p {
  margin: 0 0 2px;
  color: var(--color-primary);
  font-weight: 700;
}

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

.sheet {
  width: 100%;
  max-width: none;
  height: auto;
  max-height: min(88dvh, 780px);
  margin: auto 0 0;
  padding: 0;
  border: 0;
  border-radius: 22px 22px 0 0;
  background: transparent;
  color: var(--color-text);
  overflow: visible;
}

.sheet::backdrop {
  background: rgba(9, 31, 35, 0.5);
  backdrop-filter: blur(3px);
}

.sheet__panel {
  display: flex;
  flex-direction: column;
  max-height: min(88dvh, 780px);
  margin: 0;
  border-radius: inherit;
  background: var(--color-surface);
  box-shadow: var(--shadow-dialog);
  overflow: hidden;
}

.sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 0 0 auto;
  min-height: 72px;
  padding: 14px 16px 12px;
  border-bottom: 1px solid var(--color-border);
}

.sheet__eyebrow {
  margin: 0 0 1px;
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 750;
}

.sheet__header h2 {
  margin: 0;
  color: var(--color-primary-strong);
  font-size: 21px;
  line-height: 1.25;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.sheet__body {
  flex: 1 1 auto;
  padding: 18px 16px 24px;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.filter-group {
  margin: 0 0 22px;
  padding: 0;
  border: 0;
}

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

.filter-group legend,
.filter-label {
  display: block;
  margin: 0 0 9px;
  color: var(--color-primary-strong);
  font-size: 14px;
  font-weight: 750;
}

.segmented,
.topic-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segmented label,
.topic-options label {
  position: relative;
}

.segmented input,
.topic-options input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.segmented span,
.topic-options span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 7px 13px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 650;
}

.segmented input:checked + span,
.topic-options input:checked + span {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}

.segmented input:focus-visible + span,
.topic-options input:focus-visible + span {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.select-stack,
.filter-grid {
  display: grid;
  gap: 10px;
}

.filter-grid {
  grid-template-columns: 1fr;
}

.filter-group select {
  width: 100%;
  min-height: 46px;
  padding: 0 36px 0 12px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
}

.filter-group select:disabled {
  background: #f2f4f2;
  color: #90999a;
  cursor: not-allowed;
}

.field-note {
  margin: 8px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.field-note--warning {
  color: #8b5d20;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  margin-top: 8px;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 650;
}

.check-row input {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
}

.sheet__footer {
  display: grid;
  grid-template-columns: minmax(100px, 0.6fr) minmax(0, 1.4fr);
  gap: 10px;
  flex: 0 0 auto;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}

.sheet__footer--single {
  grid-template-columns: 1fr;
}

.prose {
  color: var(--color-muted);
  font-size: 15px;
}

.prose p {
  margin: 0 0 16px;
}

.prose p:last-child {
  margin-bottom: 0;
}

.noscript {
  margin: 0;
  padding: 14px;
  background: var(--color-danger-soft);
  color: var(--color-text);
  text-align: center;
}

body.modal-open {
  overflow: hidden;
}

@media (min-width: 620px) {
  .filter-grid,
  .select-stack {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .site-header__inner {
    padding: 0 28px;
  }

  .brand {
    font-size: 17px;
  }

  .hero__inner {
    padding: 52px 28px 38px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero__intro {
    margin-top: 12px;
    font-size: 17px;
  }

  .search {
    max-width: 820px;
    min-height: 58px;
  }

  .search input {
    height: 56px;
  }

  .quick-topics {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .quick-topics__label {
    margin: 0;
  }

  .results {
    width: min(calc(100% - 40px), calc(var(--content-width) + 40px));
    margin: 0 auto 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 36px rgba(14, 39, 43, 0.05);
    overflow: clip;
  }

  .results-toolbar {
    min-height: 82px;
    padding: 16px 28px;
  }

  .results-toolbar__title h2 {
    font-size: 21px;
  }

  .active-state {
    padding: 14px 28px;
  }

  .policy-link {
    padding: 22px 28px;
  }

  .policy-title {
    max-width: 880px;
    font-size: 18px;
  }

  .policy-footer {
    margin-top: 11px;
  }

  .sheet {
    width: min(calc(100% - 40px), 660px);
    margin: auto;
    border-radius: 22px;
  }

  .sheet--about {
    width: min(calc(100% - 40px), 560px);
  }

  .sheet__header,
  .sheet__body,
  .sheet__footer {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 420px) {
  .brand__prefix {
    font-size: 13px;
  }

  .text-button {
    font-size: 13px;
  }

  .results-toolbar__actions {
    gap: 6px;
  }

  .control-button {
    padding: 0 9px;
  }

  .sort-control select {
    width: 94px;
    padding-left: 8px;
    font-size: 13px;
  }

  .source-action {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}