:root {
  --paper: #ffffff;
  --canvas: #f6f7f8;
  --ink: #17191c;
  --muted: #656a72;
  --line: #dedfe2;
  --line-strong: #c9cbd0;
  --red: #d93732;
  --red-dark: #b82824;
  --red-soft: #fff2f1;
  --teal: #087b69;
  --blue: #2456a6;
  --shadow: 0 8px 28px rgba(25, 28, 33, 0.07);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--canvas);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

.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;
}

.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.header-inner,
main,
footer {
  width: min(100% - 40px, 980px);
  margin: 0 auto;
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand,
.source-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand {
  gap: 10px;
  font-weight: 750;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: var(--red);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.source-link {
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

.source-link:hover {
  color: var(--ink);
}

.source-link svg,
.notice-icon svg,
.search-field svg,
.icon-button svg,
.download-link svg,
.mirror-link svg {
  width: 17px;
  height: 17px;
  stroke-width: 2;
}

main {
  padding: 58px 0 36px;
}

.intro {
  max-width: 720px;
  padding-bottom: 26px;
}

.eyebrow,
.section-kicker {
  color: var(--red);
  font-size: 13px;
  font-weight: 750;
  text-transform: uppercase;
}

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

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 4px rgba(8, 123, 105, 0.12);
}

h1 {
  margin: 14px 0 14px;
  max-width: 700px;
  font-size: 44px;
  line-height: 1.12;
  letter-spacing: 0;
}

.intro > p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.sync-meta {
  min-height: 22px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}

.catalog {
  padding-top: 32px;
  border-top: 1px solid var(--line-strong);
}

.interface-section {
  margin-bottom: 30px;
  padding: 26px 0 30px;
  border-top: 0;
}

.interface-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.interface-heading > p {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  text-align: right;
}

.interface-list {
  display: grid;
  gap: 10px;
}

.interface-row {
  min-height: 76px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.interface-content {
  min-width: 0;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.interface-content > svg {
  width: 34px;
  height: 34px;
  padding: 8px;
  border-radius: 6px;
  background: #eaf6f3;
  color: var(--teal);
}

.interface-text {
  min-width: 0;
}

.interface-text strong {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
}

.interface-address {
  display: block;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.copy-interface {
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 13px;
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

.copy-interface:hover {
  background: #34373c;
}

.copy-interface svg {
  width: 16px;
  height: 16px;
}

.catalog-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.section-kicker {
  margin: 0 0 5px;
}

h2 {
  margin: 0;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

.result-count {
  min-width: 88px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.search-field {
  width: min(100%, 390px);
  height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 13px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
}

.search-field:focus-within {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(23, 25, 28, 0.08);
}

.search-field input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
}

.search-field input::placeholder {
  color: #92969d;
}

.segments {
  height: 42px;
  display: inline-grid;
  grid-template-columns: repeat(3, minmax(58px, 1fr));
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.segment {
  height: 34px;
  padding: 0 13px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

.segment:hover {
  color: var(--ink);
}

.segment.is-active {
  background: var(--ink);
  color: #fff;
}

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

.release-card {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  min-height: 290px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.release-summary {
  padding: 25px;
  border-right: 1px solid var(--line);
  background: #fafafa;
}

.app-icon {
  width: 58px;
  height: 58px;
  display: block;
  margin-bottom: 22px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 3px 12px rgba(25, 28, 33, 0.16);
}

.platform-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.release-summary h3 {
  margin: 0;
  font-size: 20px;
  letter-spacing: 0;
}

.version {
  display: inline-block;
  margin-top: 8px;
  color: var(--red);
  font-size: 24px;
  font-weight: 800;
}

.updated-time {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.release-detail {
  min-width: 0;
  padding: 24px 26px;
}

.detail-title {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 750;
}

.notes {
  min-height: 60px;
  margin: 0 0 21px;
  padding-left: 20px;
  color: #454a51;
  font-size: 14px;
  line-height: 1.8;
}

.notes li::marker {
  color: var(--red);
}

.download-list {
  border-top: 1px solid var(--line);
}

.download-row {
  min-height: 60px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--line);
}

.download-name {
  min-width: 0;
}

.download-name strong {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 3px;
  font-size: 14px;
}

.download-meta {
  color: var(--muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.recommended {
  padding: 2px 6px;
  border-radius: 3px;
  background: var(--red-soft);
  color: var(--red-dark);
  font-size: 10px;
  font-weight: 750;
}

.download-actions {
  display: flex;
  align-items: center;
  gap: 7px;
}

.icon-button,
.download-link,
.mirror-link {
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
  cursor: pointer;
}

.icon-button {
  width: 34px;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
}

.icon-button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.download-link {
  gap: 7px;
  padding: 0 12px;
  background: var(--red);
  border: 1px solid var(--red);
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
}

.download-link:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
}

.mirror-link {
  gap: 6px;
  padding: 0 10px;
  border: 1px solid #9eb4d6;
  background: #f4f7fc;
  color: var(--blue);
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
}

.mirror-link:hover {
  border-color: var(--blue);
  background: #eaf0fa;
}

.empty-state,
.error-state {
  min-height: 180px;
  display: grid;
  place-items: center;
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.loading-row {
  height: 290px;
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.loading-row span {
  height: 14px;
  border-radius: 3px;
  background: #eceef0;
}

.loading-row span:nth-child(1) { width: 30%; }
.loading-row span:nth-child(2) { width: 68%; }
.loading-row span:nth-child(3) { width: 52%; }

.notice {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding: 24px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.global-notice {
  margin-bottom: 0;
  padding: 18px 0;
}

.catalog .notice {
  margin-bottom: 18px;
  padding: 16px 0;
}

.notice-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #eaf6f3;
  color: var(--teal);
}

.notice-warm .notice-icon {
  background: var(--red-soft);
  color: var(--red-dark);
}

.notice h2 {
  font-size: 16px;
}

.notice p,
.notice-list {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.notice-list {
  padding-left: 19px;
}

.notice-list li::marker {
  color: var(--red);
}

footer {
  padding: 20px 0 36px;
  color: var(--muted);
  font-size: 12px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 20;
  max-width: calc(100vw - 32px);
  padding: 10px 14px;
  border-radius: 5px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 720px) {
  .header-inner,
  main,
  footer {
    width: min(100% - 28px, 980px);
  }

  main {
    padding-top: 38px;
  }

  h1 {
    font-size: 34px;
  }

  .intro {
    padding-bottom: 24px;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .interface-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .interface-heading > p {
    text-align: left;
  }

  .search-field {
    width: 100%;
  }

  .segments {
    width: 100%;
  }

  .release-card {
    grid-template-columns: 1fr;
  }

  .release-summary {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    column-gap: 14px;
    padding: 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .app-icon {
    grid-row: 1 / span 4;
    width: 52px;
    height: 52px;
    margin: 0;
  }

  .platform-label,
  .release-summary h3,
  .version,
  .updated-time {
    grid-column: 2;
  }

  .version {
    margin-top: 4px;
    font-size: 21px;
  }

  .release-detail {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .source-link span {
    display: none;
  }

  .source-link {
    width: 36px;
    height: 36px;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 5px;
  }

  h1 {
    font-size: 30px;
  }

  .interface-row {
    grid-template-columns: 1fr;
  }

  .copy-interface {
    width: 100%;
  }

  .intro > p {
    font-size: 15px;
  }

  .download-row {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 14px 0;
  }

  .download-actions {
    width: 100%;
    display: grid;
    grid-template-columns: 34px repeat(3, minmax(0, 1fr));
  }

  .download-link,
  .mirror-link {
    min-width: 0;
    padding: 0 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}