:root {
  --ink: #19211e;
  --muted: #65706a;
  --green: #176b4c;
  --lime: #d9f274;
  --line: #dfe5df;
  --paper: #ffffff;
  --wash: #f5f7f3;
  --amber: #895c16;
  --blue: #2d5f8a;
  --coral: #b45f4e;
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  letter-spacing: 0;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 26px; }
body { margin: 0; font-size: 15px; line-height: 1.65; }
body.dialog-open { overflow: hidden; }
button, input, select { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { cursor: default; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol, dl, figure { margin: 0; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, [role="tabpanel"]:focus-visible {
  outline: 3px solid var(--green); outline-offset: 4px;
}
[hidden] { display: none !important; }
.shell { width: min(1200px, calc(100% - 80px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: 12px; left: 16px; z-index: 10; padding: 10px 18px; background: var(--lime); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { height: 88px; display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-size: 18px; font-weight: 700; }
.brand-mark { display: grid; place-items: center; width: 35px; height: 35px; background: var(--green); color: #fff; font-size: 18px; border-radius: 4px; }
.site-nav { display: flex; align-items: center; gap: 32px; font-size: 13px; font-weight: 600; }
.site-nav a { padding-block: 12px; }
.site-nav a:hover { color: var(--green); }
.nav-work span { margin-left: 8px; }
.intro { padding-block: 46px 40px; display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; }
.eyebrow { color: var(--green); font-size: 11px; font-weight: 700; }
h1 { font-size: 40px; line-height: 1.3; margin-top: 11px; font-weight: 700; }
.title-period { color: var(--green); margin-left: 4px; }
.intro-copy { color: var(--muted); margin-top: 15px; max-width: 680px; font-size: 14px; }
.intro-count { border-left: 1px solid var(--line); padding-left: 30px; min-width: 112px; }
.intro-count strong { display: block; font-size: 42px; font-weight: 400; line-height: 1.1; font-variant-numeric: tabular-nums; }
.intro-count span { color: var(--muted); font-size: 11px; display: block; margin-top: 8px; }
.works { padding-bottom: 76px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 17px; }
.section-heading h2 { font-size: 17px; font-weight: 650; }
.section-heading p { color: var(--muted); font-size: 11px; }
.featured-project { border: 1px solid var(--line); border-radius: 6px; overflow: hidden; margin-bottom: 31px; background: var(--wash); }
.featured-link { display: grid; grid-template-columns: 1.15fr 1fr; min-width: 0; }
.featured-media { aspect-ratio: 3 / 2; overflow: hidden; background: #e7eddf; min-width: 0; }
.cover-image { width: 100%; height: 100%; object-fit: cover; }
.cover-fallback { display: grid; place-items: center; width: 100%; height: 100%; min-height: 120px; color: var(--green); font-size: 13px; background: #eaf0e4; }
.featured-copy { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: 32px; min-width: 0; }
.featured-label { display: inline-flex; align-items: center; gap: 10px; font-size: 11px; color: var(--green); margin-bottom: 18px; }
.featured-label::before { content: ""; width: 22px; height: 1px; background: var(--green); }
.featured-copy h3 { font-size: 27px; line-height: 1.45; overflow-wrap: anywhere; }
.featured-summary { font-size: 13px; color: var(--muted); line-height: 1.85; margin-top: 12px; max-width: 420px; }
.featured-metrics { display: flex; gap: 26px; flex-wrap: wrap; margin-block: 21px; }
.featured-metric strong { font-size: 22px; line-height: 1.2; font-weight: 550; display: block; }
.featured-metric span { color: var(--muted); display: block; font-size: 10px; margin-top: 4px; }
.project-command { font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 22px; }
.project-command span { width: 29px; height: 29px; display: grid; place-items: center; background: var(--lime); border-radius: 50%; font-size: 17px; transition: transform 160ms ease; }
.featured-link:hover .project-command span { transform: rotate(45deg); }
.collection-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.category-filters { display: flex; flex-wrap: wrap; gap: 4px; }
.filter-button { border: 0; background: transparent; padding: 9px 11px; font-size: 12px; border-radius: 4px; white-space: nowrap; min-height: 40px; }
.filter-button:hover { background: var(--wash); }
.filter-button[aria-pressed="true"] { background: var(--green); color: #fff; }
.filter-count { margin-left: 7px; opacity: .7; font-size: 10px; font-variant-numeric: tabular-nums; }
.search-field { display: flex; align-items: center; width: 210px; flex: 0 0 210px; gap: 8px; border-bottom: 1px solid #bec7bf; min-height: 40px; }
.search-symbol { font-size: 25px; line-height: 1; color: var(--muted); }
.search-field input { border: 0; outline: none; background: transparent; width: 100%; min-width: 0; padding: 8px 1px; font-size: 12px; border-radius: 0; }
.search-field:focus-within { border-color: var(--green); box-shadow: 0 1px 0 var(--green); }
.search-field input:focus-visible { outline-offset: 0; }
.results-row { display: flex; align-items: center; justify-content: space-between; min-height: 54px; font-size: 11px; color: var(--muted); gap: 16px; }
.text-button { background: transparent; border: 0; font-size: 11px; padding: 7px 0 7px 8px; min-height: 36px; }
.text-button:hover { color: var(--green); }
.text-button span { font-size: 17px; margin-left: 7px; }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 29px 24px; }
.project-card { min-width: 0; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; background: #fff; transition: border-color 160ms ease, box-shadow 160ms ease; }
.project-card:hover { border-color: #9aafa0; box-shadow: 0 6px 18px #18291c0a; }
.project-link { display: flex; flex-direction: column; height: 100%; }
.card-media { aspect-ratio: 3 / 2; background: var(--wash); border-bottom: 1px solid var(--line); overflow: hidden; }
.card-body { padding: 19px 20px 17px; flex: 1; display: flex; flex-direction: column; min-width: 0; }
.card-category { font-size: 10px; color: var(--green); margin-bottom: 8px; }
.card-heading { display: flex; gap: 10px; justify-content: space-between; align-items: flex-start; }
.card-heading h3 { font-size: 17px; line-height: 1.6; overflow-wrap: anywhere; }
.card-arrow { font-size: 21px; font-weight: 400; line-height: 1.2; flex: 0 0 22px; text-align: right; color: var(--green); }
.card-summary { color: var(--muted); margin-top: 9px; font-size: 12px; line-height: 1.9; }
.tags { list-style: none; padding: 0; display: flex; gap: 7px 13px; flex-wrap: wrap; margin-top: 15px; color: #707a72; font-size: 10px; }
.tags li::before { content: "#"; opacity: .6; margin-right: 2px; }
.card-meta { margin-top: auto; padding-top: 19px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; font-size: 9px; }
.card-date { color: #758077; }
.status { display: inline-flex; align-items: flex-start; gap: 6px; font-size: 10px; color: #65706a; line-height: 1.6; overflow-wrap: anywhere; }
.status::before { content: ""; display: block; flex: 0 0 5px; width: 5px; height: 5px; border-radius: 50%; margin-top: 5px; background: currentColor; }
.status-ready { color: var(--green); }
.status-rework { color: var(--amber); }
.empty-state { text-align: center; border-block: 1px solid var(--line); padding: 56px 20px; background: var(--wash); }
.empty-symbol { display: block; color: var(--green); font-size: 36px; }
.empty-state h3 { font-size: 20px; margin-top: 6px; }
.empty-state p { font-size: 13px; color: var(--muted); margin-block: 10px 24px; }
.primary-button { display: inline-flex; align-items: center; gap: 20px; border: 0; background: var(--green); color: #fff; padding: 11px 19px; border-radius: 4px; font-size: 12px; min-height: 42px; }
.primary-button:hover { background: #10583d; }
.data-notice { padding: 28px 16px; margin-top: 20px; background: var(--wash); color: var(--muted); }
.about { background: var(--wash); border-block: 1px solid var(--line); }
.about-inner { display: grid; grid-template-columns: 1fr 1.15fr; gap: 60px; padding-block: 54px; }
.about-heading h2 { font-size: 27px; line-height: 1.5; margin-top: 14px; }
.about-copy > p { font-size: 14px; line-height: 1.9; max-width: 600px; }
.discipline-list { display: flex; flex-wrap: wrap; gap: 7px 22px; font-size: 11px; margin-block: 20px; list-style: none; padding: 0; color: var(--green); }
.discipline-list li::before { content: "—"; margin-right: 7px; }
.about-copy .collection-note { color: var(--muted); font-size: 11px; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 22px; min-height: 92px; font-size: 11px; color: var(--muted); }
.footer-divider { margin-inline: 11px; color: #acb6ad; }
.site-footer a:hover { color: var(--green); }
.site-footer a span { margin-left: 15px; }
.project-dialog { border: 0; padding: 0; margin: auto; width: min(900px, calc(100% - 48px)); max-height: calc(100dvh - 48px); border-radius: 6px; background: #fff; color: var(--ink); box-shadow: 0 24px 90px #14251b33; overscroll-behavior: contain; }
.project-dialog::backdrop { background: #17251d99; }
.dialog-close { position: sticky; top: 16px; margin: 16px 16px -60px auto; display: grid; place-items: center; z-index: 2; width: 44px; height: 44px; border-radius: 50%; border: 1px solid #d5dcd5; background: #fff; font-size: 27px; line-height: 1; box-shadow: 0 2px 8px #17251d0a; }
.dialog-close:hover { background: var(--lime); }
.detail-cover { aspect-ratio: 3 / 2; background: var(--wash); overflow: hidden; max-height: 480px; border-bottom: 1px solid var(--line); }
.detail-cover .cover-image { object-fit: contain; }
.detail-body { padding: 35px 44px 38px; }
.detail-topline { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 11px; color: var(--green); }
.detail-date { color: var(--muted); }
.detail-title { font-size: 31px; line-height: 1.5; margin-block: 12px; overflow-wrap: anywhere; }
.detail-summary { color: var(--muted); font-size: 14px; line-height: 1.85; margin-bottom: 15px; }
.detail-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(125px, 1fr)); margin-block: 28px; padding-block: 22px; border-block: 1px solid var(--line); gap: 20px; }
.detail-metrics dt { font-size: 26px; font-weight: 500; line-height: 1.2; }
.detail-metrics dd { margin: 8px 0 0; color: var(--muted); font-size: 11px; }
.detail-section { margin-top: 27px; }
.detail-section h3, .detail-columns h3 { font-size: 14px; margin-bottom: 12px; }
.detail-section > p, .detail-columns ul, .detail-columns ol { font-size: 13px; line-height: 1.95; color: #536057; }
.detail-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; margin-top: 28px; }
.detail-columns ul, .detail-columns ol { padding-left: 18px; }
.detail-columns li + li { margin-top: 5px; }
.excerpt-body { white-space: pre-line; padding-left: 18px; border-left: 3px solid var(--lime); }
.project-note { padding-top: 22px; border-top: 1px solid var(--line); margin-top: 28px; }
.project-note h3 { color: var(--muted); font-size: 11px; }
.project-note p { color: var(--muted); font-size: 11px; line-height: 1.9; margin-top: 8px; }
.detail-back { margin-top: 28px; }
.updates { padding: 0 0 28px; }
.updates-heading { display: flex; align-items: baseline; gap: 18px; margin-bottom: 10px; }
.updates-heading h2 { font-size: 13px; color: var(--coral); }
.updates-heading > span { font-size: 11px; color: var(--muted); }
.update-list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); border-block: 1px solid var(--line); }
.update-link { display: grid; grid-template-columns: auto 1fr auto; gap: 5px 10px; padding: 14px 18px 14px 0; min-width: 0; }
.update-link + .update-link { padding-left: 18px; border-left: 1px solid var(--line); }
.update-link time { color: var(--muted); font-size: 10px; }
.update-kind { color: var(--coral); font-size: 10px; }
.update-title { grid-column: 1 / 3; font-size: 12px; overflow-wrap: anywhere; }
.update-arrow { grid-column: 3; grid-row: 1 / 3; align-self: center; color: var(--blue); font-size: 19px; }
.update-link:hover .update-title { color: var(--blue); }
.browse-options { display: flex; flex-wrap: wrap; gap: 12px 22px; align-items: center; margin-top: 15px; font-size: 11px; }
.browse-options label, .toggle-control { display: inline-flex; gap: 7px; align-items: center; min-height: 34px; cursor: pointer; }
input[type="checkbox"] { accent-color: var(--green); width: 16px; height: 16px; margin: 0; flex: 0 0 16px; }
.browse-options > span { margin-left: auto; color: var(--muted); }
.case-badges { display: flex; flex-wrap: wrap; gap: 12px; min-height: 25px; align-items: center; margin-top: 10px; }
.case-badge { font-size: 10px; display: inline-flex; align-items: center; gap: 5px; }
.case-badge::before { content: ""; width: 4px; height: 4px; background: currentColor; }
.badge-demo { color: var(--blue); }
.badge-file { color: var(--coral); }
.featured-project { border: 0; border-block: 1px solid var(--line); border-radius: 0; background: #f5f8f6; }
.featured-link { grid-template-columns: 1fr 1.2fr; }
.featured-media { aspect-ratio: auto; min-height: 250px; background: #f4f7f3; }
.featured-media img { object-fit: contain; }
.featured-copy { padding: 26px 32px; }
.featured-copy h3 { font-size: 25px; }
.featured-copy .status { margin-top: 10px; }
.featured-label { margin-bottom: 9px; }
.featured-metrics { margin-block: 16px; }
.project-dialog { width: min(1020px,calc(100% - 48px)); }
.detail-header { display: grid; grid-template-columns: minmax(0,0.85fr) minmax(0,1.15fr); border-bottom: 1px solid var(--line); background: #f7f9f6; }
.detail-cover { aspect-ratio: 3 / 2; align-self: center; border: 0; max-height: none; }
.detail-title-block { padding: 34px 68px 26px 34px; align-self: center; min-width: 0; }
.detail-title { font-size: 26px; line-height: 1.5; }
.detail-summary { font-size: 13px; }
.detail-body { padding: 0 40px 34px; }
.detail-metrics { padding-block: 20px; margin-block: 0; border-top: 0; }
.detail-metrics dt { font-size: 24px; }
.detail-tabs { display: flex; flex-wrap: wrap; gap: 0 24px; padding-right: 28px; border-bottom: 1px solid var(--line); }
.detail-tab { border: 0; border-bottom: 3px solid transparent; background: transparent; padding: 14px 0 11px; font-size: 13px; white-space: nowrap; }
.detail-tab[aria-selected="true"] { border-bottom-color: var(--green); color: var(--green); font-weight: 650; }
.detail-panel { padding-block: 26px 8px; min-height: 340px; }
.detail-panel .detail-section:first-child { margin-top: 0; }
.detail-panel h3 { font-size: 14px; margin-bottom: 10px; }
.detail-panel > div > section + section { margin-top: 24px; }
.detail-panel ul { padding-left: 20px; font-size: 13px; line-height: 1.95; color: #536057; }
.example-block { padding-block: 23px 0; border-top: 1px solid var(--line); margin-top: 26px; }
.example-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.example-columns h4 { font-size: 11px; color: var(--blue); margin-bottom: 8px; }
.example-columns > div:nth-child(2) h4 { color: var(--coral); }
.example-columns p { font-size: 13px; color: #536057; line-height: 1.9; overflow-wrap: anywhere; }
.process-list { list-style: none; padding: 0; }
.process-list li { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding-block: 18px; border-bottom: 1px solid var(--line); }
.process-list li:first-child { padding-top: 0; }
.process-list li:last-child { border-bottom: 0; }
.step-index { color: var(--coral); font-size: 18px; font-variant-numeric: tabular-nums; line-height: 1.4; }
.process-list p { color: #536057; font-size: 13px; line-height: 1.9; }
.demo-tool { border: 1px solid var(--line); border-radius: 6px; padding: 24px; background: #fbfcfa; min-width: 0; }
.demo-tool > h3 { margin-bottom: 18px; }
.demo-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.demo-heading h3 { margin: 0; }
.angle-output { color: var(--blue); font-size: 17px; min-width: 116px; text-align: right; font-variant-numeric: tabular-nums; }
.angle-diagram { display: block; width: 100%; height: 240px; max-width: 500px; margin-inline: auto; }
.range-label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 8px; }
input[type="range"] { display: block; width: 100%; accent-color: var(--green); margin: 12px 0 20px; height: 26px; cursor: pointer; }
.angle-presets { display: flex; flex-wrap: wrap; gap: 8px; }
.preset-button { border: 1px solid var(--line); border-radius: 4px; background: #fff; min-width: 48px; min-height: 38px; padding: 6px 12px; font-size: 12px; }
.preset-button[aria-pressed="true"] { border-color: var(--green); background: var(--green); color: #fff; }
.demo-caption { color: var(--muted); font-size: 11px; margin-top: 18px; line-height: 1.8; }
.demo-result { color: var(--blue); font-size: 13px; margin-block: 12px; font-variant-numeric: tabular-nums; }
.demo-table-wrap { overflow-x: auto; }
.demo-table { width: 100%; border-collapse: collapse; font-size: 12px; table-layout: fixed; }
.demo-table th { color: var(--muted); text-align: left; font-weight: 500; background: #f0f4ef; }
.demo-table th, .demo-table td { padding: 10px 12px; border-bottom: 1px solid var(--line); overflow-wrap: anywhere; }
.demo-table th:first-child { width: 40%; }
.demo-table th:last-child, .demo-table td:last-child { text-align: right; width: 20%; }
.workflow-select { width: 100%; min-height: 44px; border: 1px solid #c9d3cb; background: #fff; border-radius: 4px; padding: 8px 10px; font-size: 13px; color: var(--ink); }
.workflow-stage { min-height: 170px; margin-top: 22px; border-block: 1px solid var(--line); padding-block: 22px; }
.stage-number { font-size: 10px; color: var(--coral); margin-bottom: 10px; }
.workflow-stage h4 { font-size: 17px; margin-bottom: 10px; }
.workflow-stage > p:last-child { font-size: 13px; color: #536057; line-height: 1.9; }
.workflow-controls { display: flex; justify-content: flex-end; gap: 12px; align-items: center; margin-top: 16px; }
.icon-button { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid #c9d3cb; border-radius: 4px; background: #fff; font-size: 27px; line-height: 1; }
.icon-button:hover:not(:disabled) { background: #eaf1e7; }
.icon-button:disabled { opacity: .4; }
.workflow-progress { font-size: 11px; color: var(--muted); min-width: 34px; text-align: center; font-variant-numeric: tabular-nums; }
.file-note { font-size: 12px; color: var(--muted); line-height: 1.8; }
.download-row { display: flex; justify-content: space-between; align-items: center; gap: 24px; border-block: 1px solid var(--line); padding-block: 24px; margin-top: 22px; }
.download-copy { min-width: 0; }
.download-copy h4 { font-size: 15px; margin-bottom: 7px; }
.download-copy p { color: var(--muted); font-size: 12px; line-height: 1.8; }
.file-type { display: block; color: var(--coral); font-size: 10px; margin-top: 9px; }
.download-button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 9px 18px; flex: 0 0 auto; border: 1px solid var(--green); border-radius: 4px; color: var(--green); font-size: 12px; }
.download-button:hover { background: var(--green); color: #fff; }
@media (min-width: 1440px) {
  .intro { padding-top: 54px; }
}
@media (max-width: 1050px) {
  .shell { width: calc(100% - 48px); }
  .collection-toolbar { align-items: flex-start; flex-direction: column; gap: 10px; }
  .search-field { width: 100%; max-width: 360px; flex-basis: auto; }
  .featured-copy { padding: 24px; }
  .featured-copy h3 { font-size: 23px; }
  .featured-label { margin-bottom: 12px; }
  .featured-metrics { gap: 20px; margin-block: 16px; }
  .featured-metric strong { font-size: 20px; }
  .featured-summary { font-size: 12px; }
  .project-grid { gap: 22px 18px; }
  .card-body { padding: 16px; }
  .card-heading h3 { font-size: 16px; }
}
@media (max-width: 760px) {
  .site-header { height: 72px; }
  .intro { padding-block: 32px 28px; }
  h1 { font-size: 32px; }
  .intro-copy { font-size: 12px; }
  .intro-count { min-width: 84px; padding-left: 20px; }
  .intro-count strong { font-size: 34px; }
  .featured-copy { padding: 21px; }
  .featured-summary { margin-top: 8px; }
  .featured-metrics { display: none; }
  .project-command { margin-top: 16px; }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-heading p { display: none; }
  .about-inner { gap: 30px; }
  .about-heading h2 { font-size: 23px; }
  .detail-body { padding-inline: 28px; }
  .update-list { grid-template-columns: 1fr; }
  .update-link { padding: 11px 0; grid-template-columns: 85px 40px 1fr auto; align-items: baseline; gap: 7px; }
  .update-link + .update-link { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .update-title { grid-column: 3; }
  .update-arrow { grid-column: 4; grid-row: 1; font-size: 16px; }
  .detail-header { grid-template-columns: 1fr; }
  .detail-cover { display: none; }
  .detail-title-block { padding: 34px 68px 24px 28px; }
}
@media (max-width: 540px) {
  .shell { width: calc(100% - 36px); }
  .site-nav { gap: 23px; font-size: 11px; }
  .brand { font-size: 16px; gap: 8px; }
  .brand-mark { width: 30px; height: 30px; font-size: 16px; }
  .intro { align-items: flex-start; gap: 14px; padding-top: 27px; }
  h1 { font-size: 29px; }
  .intro-copy { margin-top: 12px; }
  .intro-count { min-width: 59px; padding-left: 13px; margin-top: 28px; }
  .intro-count strong { font-size: 30px; }
  .intro-count span { font-size: 9px; }
  .eyebrow { font-size: 9px; }
  .section-heading { margin-bottom: 13px; }
  .section-heading h2 { font-size: 15px; }
  .featured-link { grid-template-columns: minmax(0, 1fr); }
  .featured-media { aspect-ratio: 3 / 2; }
  .featured-copy { padding: 20px; }
  .featured-label { margin-bottom: 9px; }
  .featured-copy h3 { font-size: 22px; }
  .featured-summary { max-width: none; }
  .featured-project { margin-bottom: 23px; }
  .project-command { font-size: 11px; margin-top: 14px; }
  .project-command span { width: 26px; height: 26px; }
  .category-filters { gap: 3px; }
  .filter-button { font-size: 11px; padding-inline: 9px; }
  .filter-count { font-size: 9px; margin-left: 5px; }
  .search-field { max-width: none; }
  .results-row { min-height: 49px; }
  .project-grid { grid-template-columns: minmax(0, 1fr); gap: 23px; }
  .card-body { padding: 19px 20px; }
  .card-heading h3 { font-size: 18px; }
  .card-summary { font-size: 13px; }
  .card-category { font-size: 11px; }
  .card-meta { padding-top: 16px; }
  .works { padding-bottom: 44px; }
  .about-inner { grid-template-columns: minmax(0, 1fr); gap: 22px; padding-block: 34px; }
  .about-copy > p { font-size: 13px; }
  .discipline-list { gap: 8px 18px; }
  .site-footer { flex-wrap: wrap; justify-content: space-between; gap: 9px 18px; padding-block: 22px; font-size: 10px; }
  .site-footer > p:nth-child(2) { order: 3; flex-basis: 100%; }
  .project-dialog { width: calc(100% - 20px); max-height: calc(100dvh - 20px); }
  .dialog-close { top: 12px; margin-top: 12px; margin-right: 12px; }
  .detail-body { padding: 25px 22px 30px; }
  .detail-title { font-size: 25px; }
  .detail-summary { font-size: 13px; }
  .detail-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 21px 16px; }
  .detail-metrics dt { font-size: 23px; }
  .detail-columns { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .site-nav { gap: 18px; }
  .updates { padding-bottom: 24px; }
  .updates-heading { gap: 10px; }
  .updates-heading > span { font-size: 10px; }
  .update-link { grid-template-columns: 74px 28px 1fr auto; }
  .update-title { font-size: 11px; }
  .update-link time, .update-kind { font-size: 9px; }
  .browse-options { gap: 6px 18px; margin-top: 10px; }
  .browse-options > span { margin-left: 0; flex-basis: 100%; font-size: 10px; }
  .detail-title-block { padding: 40px 60px 22px 22px; }
  .detail-title { font-size: 23px; }
  .detail-body { padding: 0 22px 26px; }
  .detail-tabs { gap: 0 18px; padding-right: 38px; }
  .detail-tab { font-size: 12px; }
  .detail-panel { min-height: 300px; }
  .example-columns { grid-template-columns: 1fr; gap: 20px; }
  .demo-tool { padding: 18px 14px; }
  .angle-diagram { height: 205px; }
  .angle-output { font-size: 15px; }
  .angle-presets { gap: 6px; }
  .preset-button { min-width: 38px; padding-inline: 8px; }
  .demo-table th, .demo-table td { padding: 9px 6px; font-size: 11px; }
  .download-row { gap: 14px; align-items: flex-start; }
  .download-button { padding-inline: 12px; }
  .featured-media { min-height: 0; aspect-ratio: 3 / 2; }
}
/* 页脚备案号：工信部要求首页底部常驻，链接到 beian.miit.gov.cn */
.footer-icp { font-variant-numeric: tabular-nums; }
@media (max-width: 540px) {
  .footer-icp { order: 4; flex-basis: 100%; }
}

/* 404 页：复用 empty-state 结构，仅补上下留白 */
.not-found { padding-block: 72px 96px; }
@media (max-width: 540px) {
  .not-found { padding-block: 44px 64px; }
}

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