/* Jingbo Technology — site stylesheet
   Identity: the language of parking infrastructure. Concrete and asphalt
   surfaces, painted bay lines, the blue of the parking sign, a road-marking
   amber used only for guidance and focus. Typeface: Overpass, a free
   interpretation of the Highway Gothic signage letterform. */

@font-face { font-family: "Overpass"; src: url("../fonts/overpass-300.woff2") format("woff2"); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: "Overpass"; src: url("../fonts/overpass-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Overpass"; src: url("../fonts/overpass-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "Overpass"; src: url("../fonts/overpass-600.woff2") format("woff2"); font-weight: 600 700; font-style: normal; font-display: swap; }
@font-face { font-family: "Jingbo SC"; src: url("../fonts/jingbo-sc-400.woff") format("woff"); font-weight: 300 400; font-display: swap; unicode-range: U+3000-303F, U+3400-4DBF, U+4E00-9FFF, U+FF00-FFEF; }
@font-face { font-family: "Jingbo SC"; src: url("../fonts/jingbo-sc-500.woff") format("woff"); font-weight: 500 700; font-display: swap; unicode-range: U+3000-303F, U+3400-4DBF, U+4E00-9FFF, U+FF00-FFEF; }

:root {
  --concrete: #e4e6e2;
  --slab: #f3f4f1;
  --white: #ffffff;
  --rule: #c3c8c3;
  --rule-strong: #9aa19c;
  --asphalt: #262b31;
  --asphalt-2: #1d2126;
  --asphalt-line: #3b424a;
  --ink: #262b31;
  --ink-2: #545b63;
  --on-dark: #e7e9e5;
  --on-dark-2: #a9b0b6;
  --sign: #1d4e9e;
  --sign-deep: #163d7d;
  --sign-light: #7ca0dd;
  --sign-wash: #dde5f1;
  --marking: #d9ae3d;
  --vacant: #6fa383;
  --danger: #a3372b;
  --danger-wash: #f6e4e1;

  --font: "Overpass", "Jingbo SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-cjk-ui: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(64px, 9vw, 120px);
  --radius: 3px;
  --top-height: 112px;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: calc(var(--top-height) + 16px); }
body {
  margin: 0;
  background: var(--concrete);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
:lang(zh) body, body:lang(zh) { line-height: 1.8; letter-spacing: .01em; }
img, svg { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3 { font-weight: 600; line-height: 1.12; letter-spacing: -0.012em; text-wrap: balance; }
:lang(zh) h1, :lang(zh) h2, :lang(zh) h3 { font-weight: 500; letter-spacing: .02em; line-height: 1.3; }
p { text-wrap: pretty; }
a { color: var(--sign); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--sign-deep); text-decoration-thickness: 2px; }
address { font-style: normal; }
code { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: .9em; }
:focus-visible { outline: 3px solid var(--marking); outline-offset: 2px; }
main:focus { outline: none; }
::selection { background: var(--sign); color: #fff; }

.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--sign); color: #fff; padding: 10px 16px; border-radius: var(--radius); font-weight: 600; text-decoration: none; }
.skip:focus { top: 12px; color: #fff; }

.icon { width: 1.25em; height: 1.25em; flex: none; }

/* ---------- buttons ----------
   Signage plates: square-cornered, a darker lower edge like the folded rim
   of a sign blank. */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: .7rem 1.35rem .62rem;
  border: 1.5px solid transparent; border-radius: var(--radius);
  font: inherit; font-size: 1rem; font-weight: 600; line-height: 1.2; letter-spacing: .005em;
  text-decoration: none; text-align: center; cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--sign); color: #fff; box-shadow: inset 0 -3px 0 var(--sign-deep); }
.btn-primary:hover { background: var(--sign-deep); color: #fff; }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-secondary:hover { background: var(--asphalt); color: #fff; }
.btn-outline-light { background: transparent; color: var(--on-dark); border-color: rgba(231, 233, 229, .55); }
.btn-outline-light:hover { border-color: var(--on-dark); background: rgba(231, 233, 229, .08); color: #fff; }
.btn-sm { min-height: 40px; padding: .5rem 1rem .42rem; font-size: .9375rem; }
.btn[disabled], .btn[aria-busy="true"] { opacity: .65; cursor: progress; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

.link-strong { font-weight: 600; text-decoration: none; border-bottom: 2px solid currentColor; padding-bottom: 2px; }
.link-strong:hover { text-decoration: none; border-bottom-color: var(--marking); }

/* ---------- top: notice + header ---------- */
.top { position: sticky; top: 0; z-index: 40; }
.notice { background: var(--asphalt-2); color: var(--on-dark); font-size: .875rem; line-height: 1.45; }
.notice-inner { display: flex; align-items: flex-start; gap: 12px; padding-block: 9px 8px; }
.notice-lamp {
  flex: none; width: 10px; height: 10px; margin-top: .3em;
  background:
    radial-gradient(circle, var(--marking) 1.3px, transparent 1.6px) 0 0 / 3.33px 3.33px;
  box-shadow: 0 0 0 1px rgba(217, 174, 61, .35);
}
.notice p { max-width: none; }

.site-header { background: var(--slab); border-bottom: 1px solid var(--rule); }
.header-bar { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; flex: none; }
.brand:hover { color: var(--ink); }
.mark { width: 34px; height: 34px; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-size: 1.25rem; font-weight: 600; letter-spacing: -.01em; }
.brand-sub { font-size: .8125rem; color: var(--ink-2); margin-top: 3px; letter-spacing: .02em; }
.brand-light { color: var(--on-dark); }
.brand-light:hover { color: #fff; }
.brand-light .brand-sub { color: var(--on-dark-2); }

.nav { margin-left: auto; }
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-list a {
  display: block; padding: 22px 10px 20px; color: var(--ink); text-decoration: none;
  font-size: .9375rem; font-weight: 500; position: relative;
}
.nav-list a::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 12px; height: 2px; background: transparent; }
.nav-list a:hover::after { background: var(--rule-strong); }
.nav-list a[aria-current="page"]::after { background: var(--sign); }
.nav-list a[aria-current="page"] { color: var(--sign); }
.nav-contact { display: none; }

.header-tools { display: flex; align-items: center; gap: 12px; }
.lang-switch { display: inline-flex; border: 1.5px solid var(--ink); border-radius: var(--radius); overflow: hidden; }
.lang-switch a {
  display: inline-flex; align-items: center; min-height: 34px; padding: 0 10px;
  font-size: .8125rem; font-weight: 600; color: var(--ink); text-decoration: none; line-height: 1;
}
.lang-switch a[lang="zh-CN"] { font-family: var(--font-cjk-ui); font-weight: 500; }
:lang(zh) .lang-switch a[lang="zh-CN"] { font-family: var(--font); }
.lang-switch a + a { border-left: 1.5px solid var(--ink); }
.lang-switch a[aria-current="true"] { background: var(--ink); color: var(--slab); }
.lang-switch a:not([aria-current]):hover { background: var(--concrete); }

.menu-btn {
  display: none; align-items: center; gap: 10px; min-height: 40px; padding: 0 12px;
  border: 1.5px solid var(--ink); border-radius: var(--radius); background: transparent;
  font: inherit; font-size: .9375rem; font-weight: 600; color: var(--ink); cursor: pointer;
}
.menu-icon { position: relative; width: 18px; height: 12px; }
.menu-icon::before, .menu-icon::after { content: ""; position: absolute; left: 0; right: 0; height: 2px; background: currentColor; transition: transform .2s ease, top .2s ease; }
.menu-icon::before { top: 1px; }
.menu-icon::after { top: 9px; }
.nav-open .menu-icon::before { top: 5px; transform: rotate(45deg); }
.nav-open .menu-icon::after { top: 5px; transform: rotate(-45deg); }

@media (max-width: 1159px) {
  .js .menu-btn { display: inline-flex; }
  .js .nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--slab); border-bottom: 1px solid var(--rule);
    max-height: calc(100vh - var(--top-height)); overflow-y: auto;
  }
  .js .nav-open .nav { display: block; }
  .js .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; max-width: calc(var(--wrap) + var(--gutter) * 2); margin-inline: auto; }
  .js .nav-list a { padding: 14px 0; font-size: 1.125rem; border-bottom: 1px solid var(--rule); }
  .js .nav-list a::after { display: none; }
  .js .nav-list a[aria-current="page"] { box-shadow: inset 4px 0 0 var(--sign); padding-left: 14px; }
  .nav-contact { display: block; }
  .site-header { position: relative; }
  /* Without JavaScript the menu stays visible as a wrapping row. */
  html:not(.js) .header-bar { flex-wrap: wrap; }
  html:not(.js) .nav { order: 3; width: 100%; margin: 0; }
  html:not(.js) .nav-list { flex-wrap: wrap; }
  html:not(.js) .nav-list a { padding: 8px 10px; }
}
@media (max-width: 640px) {
  .header-cta { display: none; }
  .menu-label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .menu-btn { padding: 0 11px; }
  .header-bar { gap: 12px; min-height: 60px; }
  .brand-sub { display: none; }
  .mark { width: 30px; height: 30px; }
  .notice { font-size: .8125rem; }
  :root { --top-height: 120px; }
}

/* ---------- typographic scale ---------- */
.lead { font-size: clamp(1.125rem, 1.6vw, 1.3125rem); line-height: 1.55; color: var(--ink-2); max-width: 36em; }
:lang(zh) .lead { line-height: 1.8; }
.section-lead { font-size: 1.125rem; line-height: 1.6; color: var(--ink-2); max-width: 40em; margin-top: 16px; }
:lang(zh) .section-lead { line-height: 1.85; }
h2 { font-size: clamp(1.75rem, 3vw, 2.375rem); }
h3 { font-size: 1.3125rem; line-height: 1.3; }
.small { font-size: .9375rem; color: var(--ink-2); }

/* ---------- sections ----------
   The "kerb": every section opens on a rule with bay stripes every 64px,
   the way stalls are painted off a kerb line. */
.section { padding-block: var(--section); }
.section + .section { padding-top: 0; }
.section.kerbed > .wrap { position: relative; padding-top: clamp(48px, 6vw, 72px); }
.section.kerbed > .wrap::before {
  content: ""; position: absolute; left: var(--gutter); right: var(--gutter); top: 0; height: 12px;
  border-top: 1.5px solid var(--rule-strong);
  background: repeating-linear-gradient(90deg, var(--rule-strong) 0 1.5px, transparent 1.5px 64px);
}
.section-slab { background: var(--slab); border-block: 1px solid var(--rule); }
.section + .section-slab, .section-slab + .section { padding-top: var(--section); }
.section-tight { padding-block: 0 var(--section); }
.section-head { max-width: 46rem; margin-bottom: clamp(32px, 4vw, 48px); }
.split > .section-head { margin-bottom: 0; }
.after-list { margin-top: 28px; }
.section-head p + p { margin-top: 22px; }

.split { display: grid; gap: clamp(32px, 5vw, 72px); grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: start; }
.split-media { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); align-items: center; }
@media (max-width: 900px) {
  .split, .split-media { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- hero ---------- */
.hero { padding-block: clamp(48px, 7vw, 96px) clamp(40px, 5vw, 72px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4.5rem); line-height: 1.02; letter-spacing: -0.022em; font-weight: 600; max-width: 11em; }
:lang(zh) .hero h1 { font-size: clamp(2rem, 3.6vw, 3.25rem); line-height: 1.3; letter-spacing: .02em; max-width: 10.5em; }
.hero .lead { margin-top: 24px; }
.hero .btn-row { margin-top: 36px; }
.hero-plan { margin: 0; }
.plan-frame { background: var(--asphalt); padding: clamp(10px, 1.6vw, 18px); }
.plan-frame img { width: 100%; }
.hero-plan figcaption { margin-top: 14px; font-size: .875rem; color: var(--ink-2); line-height: 1.5; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 6px; color: var(--ink); font-weight: 500; }
.legend li { display: inline-flex; align-items: center; gap: 8px; }
.key { display: inline-block; flex: none; }
.key-occupied { width: 10px; height: 18px; border-radius: 3px; background: #59616a; }
.key-vacant { width: 9px; height: 9px; border-radius: 50%; background: var(--vacant); }
.key-reserved { width: 14px; height: 18px; background: rgba(29, 78, 158, .75); border: 2px solid var(--sign-light); }
.key-route { width: 24px; height: 0; border-top: 3px dashed var(--marking); }
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- facts as painted bays ---------- */
.bays { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--asphalt); }
.bay { position: relative; padding: 22px 16px 6px 42px; }
.bay::before {
  content: ""; position: absolute; left: 6px; top: 0; height: 64px; width: 2px;
  background: var(--asphalt); transform: skewX(20deg); transform-origin: top left;
}
.bay-value { display: block; font-size: clamp(2.25rem, 4vw, 3.25rem); font-weight: 300; line-height: 1; letter-spacing: -0.02em; }
.bay-label { display: block; margin-top: 10px; font-size: .9375rem; color: var(--ink-2); line-height: 1.4; max-width: 16em; }
@media (max-width: 800px) {
  .bays { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 20px; }
  .bay:nth-child(n+3) { border-top: 2px solid var(--asphalt); }
}

/* ---------- system stack (cross-section) ---------- */
.stack { counter-reset: none; border: 1.5px solid var(--asphalt); }
.layer { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); background: var(--slab); }
.layer + .layer { border-top: 1px solid var(--rule); }
.layer-name { padding: 22px 16px; font-weight: 600; font-size: .9375rem; color: var(--sign); border-right: 1px solid var(--rule); }
.layer-body { padding: 20px 24px 22px; }
.layer-body h3 { font-size: 1.125rem; }
.layer-body p { margin-top: 6px; color: var(--ink-2); font-size: 1rem; }
.layer-2 { background: #e9ebe7; }
.layer-3 { background: var(--asphalt); color: var(--on-dark); border-top: 0 !important; position: relative; }
.layer-3::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: repeating-linear-gradient(90deg, var(--on-dark) 0 22px, transparent 22px 40px); opacity: .6; }
.layer-3 .layer-name { color: var(--sign-light); border-right-color: var(--asphalt-line); }
.layer-3 .layer-body p { color: var(--on-dark-2); }
@media (max-width: 560px) {
  .layer { grid-template-columns: minmax(0, 1fr); }
  .layer-name { border-right: 0; padding: 18px 18px 0; }
  .layer-body { padding: 8px 18px 20px; }
}

/* ---------- rows (sector list, filings, teams) ---------- */
.rows { border-top: 1.5px solid var(--asphalt); }
.rows > li { border-bottom: 1px solid var(--rule); }
.row { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr) 40px; gap: 24px; align-items: center; padding: 24px 0; color: var(--ink); text-decoration: none; }
a.row:hover { color: var(--ink); background: linear-gradient(90deg, var(--slab), transparent); }
a.row:hover .row-title { color: var(--sign); }
a.row:hover .row-go { background: var(--sign); color: #fff; border-color: var(--sign); }
.row-static { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); border-bottom: 1px solid var(--rule); }
.row-title { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
.row-text { color: var(--ink-2); }
.row-go { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 1.5px solid var(--ink); border-radius: var(--radius); transition: background-color .15s ease, color .15s ease; }
.row-go .icon { width: 18px; height: 18px; }
@media (max-width: 720px) {
  .row { grid-template-columns: minmax(0, 1fr) 40px; gap: 6px 16px; }
  .row .row-text { grid-column: 1; grid-row: 2; }
  .row .row-go { grid-row: 1 / span 2; grid-column: 2; }
  .row-static { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- route (numbered journey) ---------- */
.route { position: relative; }
.route li { position: relative; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 20px; padding-bottom: 26px; }
.route li:last-child { padding-bottom: 0; }
.route li:not(:last-child)::before { content: ""; position: absolute; left: 21px; top: 44px; bottom: 0; border-left: 2px dashed var(--marking); }
.route-num {
  display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px;
  background: var(--sign); color: #fff; font-weight: 600; font-size: 1.125rem; border-radius: var(--radius);
  box-shadow: inset 0 -3px 0 var(--sign-deep);
}
.route h3 { font-size: 1.125rem; padding-top: 10px; }
.route p { color: var(--ink-2); margin-top: 2px; }
.phone { justify-self: center; width: min(340px, 100%); }

/* ---------- regions ---------- */
.regions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1.5px solid var(--asphalt); }
.region { padding: 20px 20px 22px 0; border-bottom: 1px solid var(--rule); }
.region dt { font-weight: 600; font-size: 1.125rem; }
.region dd { color: var(--ink-2); margin-top: 2px; }
@media (max-width: 720px) { .regions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* ---------- CTA band ---------- */
.cta-band { background: var(--asphalt); color: var(--on-dark); padding-block: clamp(56px, 7vw, 88px); position: relative; }
.cta-band::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 12px; background: repeating-linear-gradient(90deg, rgba(231, 233, 229, .35) 0 1.5px, transparent 1.5px 64px); }
.cta-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 32px; align-items: end; }
.cta-band h2 { color: #fff; }
.cta-band p { color: var(--on-dark-2); margin-top: 14px; max-width: 36em; font-size: 1.125rem; }
.cta-band .btn-row { justify-content: flex-end; }
@media (max-width: 860px) { .cta-grid { grid-template-columns: minmax(0, 1fr); } .cta-band .btn-row { justify-content: flex-start; } }

/* ---------- page header ---------- */
.pagehead { background: var(--asphalt); color: var(--on-dark); position: relative; }
.pagehead::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 12px; background: repeating-linear-gradient(90deg, rgba(231, 233, 229, .3) 0 1.5px, transparent 1.5px 64px); }
.pagehead-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 32px; align-items: center; padding-block: clamp(48px, 7vw, 88px) clamp(56px, 7vw, 96px); }
.has-art .pagehead-grid { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
.pagehead h1 { color: #fff; font-size: clamp(2.375rem, 4.6vw, 3.75rem); line-height: 1.05; margin-top: 28px; }
:lang(zh) .pagehead h1 { line-height: 1.25; }
.pagehead .lead { color: var(--on-dark-2); margin-top: 18px; }
.pagehead-art img { width: 100%; max-width: 560px; margin-left: auto; }
.plate {
  display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px;
  background: var(--sign); color: #fff; border-radius: 4px; box-shadow: inset 0 -3px 0 var(--sign-deep);
}
.plate .icon { width: 32px; height: 32px; }
.plate-sm { width: 36px; height: 36px; }
.plate-sm .icon { width: 22px; height: 22px; }
@media (max-width: 900px) {
  .has-art .pagehead-grid { grid-template-columns: minmax(0, 1fr); }
  .pagehead-art { display: none; }
}

/* ---------- solutions ---------- */
.jump { background: var(--slab); border-bottom: 1px solid var(--rule); }
.jump-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; padding-block: 14px; }
.jump-label { font-size: .875rem; color: var(--ink-2); }
.jump ul { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.jump a { font-weight: 500; font-size: .9375rem; color: var(--ink); text-decoration: none; border-bottom: 1.5px solid var(--rule-strong); }
.jump a:hover { color: var(--sign); border-bottom-color: var(--sign); }
.solution-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 72px); }
.solution-lists { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.solution-lists h3 { font-size: 1rem; color: var(--ink-2); font-weight: 500; padding-bottom: 12px; border-bottom: 1.5px solid var(--asphalt); margin-bottom: 4px; }
@media (max-width: 900px) { .solution-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .solution-lists { grid-template-columns: minmax(0, 1fr); } }

.ticks li { position: relative; padding: 12px 0 12px 26px; border-bottom: 1px solid var(--rule); line-height: 1.45; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 1.05em; width: 10px; height: 10px; border: 2px solid var(--sign); }
.ticks-outcome li::before { background: var(--sign); }
.ticks-lg li { font-size: 1.0625rem; padding-block: 14px; }

.models { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1.5px solid var(--asphalt); }
.models-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.model { padding: 24px 28px 24px 0; position: relative; }
.model + .model { padding-left: 28px; border-left: 1px solid var(--rule); }
.model dt { font-size: 1.3125rem; font-weight: 600; }
.model dd { margin-top: 8px; color: var(--ink-2); }
@media (max-width: 900px) {
  .models { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .model:nth-child(odd) { padding-left: 0; border-left: 0; }
  .model { border-bottom: 1px solid var(--rule); }
}
@media (max-width: 560px) {
  .models, .models-2 { grid-template-columns: minmax(0, 1fr); }
  .model, .model + .model { padding-left: 0; border-left: 0; padding-right: 0; }
}

.band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 48px; }
.band h2 { font-size: clamp(1.5rem, 2.4vw, 1.875rem); }
.band p { margin-top: 10px; color: var(--ink-2); max-width: 40em; }

/* ---------- platform ---------- */
.console { margin-top: clamp(40px, 5vw, 64px); background: var(--asphalt); padding: clamp(12px, 2vw, 24px); }
.console img { width: 100%; }
.apps { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1.5px solid var(--asphalt); }
.app { padding: 26px 32px 28px 0; border-bottom: 1px solid var(--rule); }
.app:nth-child(even) { padding-left: 32px; padding-right: 0; border-left: 1px solid var(--rule); }
.app dt { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px; }
.app-name { font-size: 1.375rem; font-weight: 600; }
.app-aud { font-size: .875rem; color: var(--sign); font-weight: 600; }
.app dd { margin-top: 10px; color: var(--ink-2); }
@media (max-width: 720px) {
  .apps { grid-template-columns: minmax(0, 1fr); }
  .app, .app:nth-child(even) { padding-inline: 0; border-left: 0; }
}

.eco {
  display: grid; grid-template-columns: 1fr auto 1fr; grid-template-rows: auto auto auto;
  gap: 28px 20px; align-items: center; justify-items: center; position: relative; padding: 12px 0;
}
.eco::before, .eco::after { content: ""; position: absolute; z-index: 0; }
.eco::before { left: 50%; top: 24px; bottom: 24px; border-left: 2px dashed var(--rule-strong); }
.eco::after { top: 50%; left: 12%; right: 12%; border-top: 2px dashed var(--rule-strong); }
.eco-node, .eco-core { position: relative; z-index: 1; }
.eco-node { background: var(--slab); border: 1.5px solid var(--asphalt); padding: 10px 16px; font-weight: 600; font-size: .9375rem; border-radius: var(--radius); }
.eco-n { grid-column: 2; grid-row: 1; }
.eco-w { grid-column: 1; grid-row: 2; justify-self: end; }
.eco-e { grid-column: 3; grid-row: 2; justify-self: start; }
.eco-s { grid-column: 2; grid-row: 3; }
.eco-core { grid-column: 2; grid-row: 2; display: flex; flex-direction: column; align-items: center; gap: 10px; background: var(--asphalt); color: #fff; padding: 22px 26px; font-weight: 600; text-align: center; border-radius: 4px; max-width: 14rem; }
.eco-core .mark { width: 40px; height: 40px; }

/* ---------- hardware ---------- */
.devices { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(40px, 5vw, 64px) clamp(24px, 4vw, 48px); }
.device-art { background: var(--slab); border: 1px solid var(--rule); position: relative; aspect-ratio: 3 / 2; display: flex; align-items: center; justify-content: center; }
.device-art::before, .device-art::after { content: ""; position: absolute; width: 14px; height: 14px; border-color: var(--asphalt); border-style: solid; }
.device-art::before { left: -1px; top: -1px; border-width: 2px 0 0 2px; }
.device-art::after { right: -1px; bottom: -1px; border-width: 0 2px 2px 0; }
.device-art img { width: 100%; height: 100%; object-fit: contain; }
.device-body { padding-top: 22px; }
.device-body h2 { font-size: 1.5rem; }
.device-body p { margin-top: 8px; color: var(--ink-2); max-width: 32em; }
.specs { margin-top: 18px; border-top: 1.5px solid var(--asphalt); }
.specs li { padding: 10px 0; border-bottom: 1px solid var(--rule); font-weight: 500; font-size: 1rem; }
@media (max-width: 760px) { .devices { grid-template-columns: minmax(0, 1fr); } }

/* ---------- projects: line map ---------- */
.line-map { position: relative; padding-left: 4px; }
.line-hub { display: flex; align-items: center; gap: 14px; font-weight: 600; font-size: 1.125rem; padding-bottom: 20px; }
.line-hub .mark { width: 40px; height: 40px; }
.line-stops { position: relative; margin-left: 19px; border-left: 4px solid var(--sign); }
.line-stops li { position: relative; display: grid; grid-template-columns: minmax(0, 9rem) minmax(0, 1fr); gap: 12px; padding: 14px 0 14px 28px; }
.line-stops li::before { content: ""; position: absolute; left: -12px; top: 50%; width: 20px; height: 20px; margin-top: -10px; background: var(--slab); border: 4px solid var(--sign); border-radius: 50%; }
.line-stops li + li { border-top: 1px solid var(--rule); }
.stop-region { font-weight: 600; font-size: 1.125rem; }
.stop-places { color: var(--ink-2); }
.line-stops li:last-child { padding-bottom: 4px; }

/* ---------- company ---------- */
.prose p + p { margin-top: 18px; }
.prose p { font-size: 1.1875rem; line-height: 1.6; max-width: 36em; }
:lang(zh) .prose p { line-height: 1.9; }
.prose .source { font-size: .875rem; color: var(--ink-2); margin-top: 24px; padding-top: 12px; border-top: 1px solid var(--rule); }

.timeline { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); position: relative; border-top: 2px solid var(--asphalt); }
.timeline li { position: relative; padding: 28px 24px 0 0; }
.timeline li::before { content: ""; position: absolute; left: 0; top: -9px; width: 16px; height: 16px; background: var(--concrete); border: 2px solid var(--asphalt); }
.timeline li:last-child::before { background: var(--sign); border-color: var(--sign); }
.tl-year { display: block; font-size: 2.25rem; font-weight: 300; line-height: 1; letter-spacing: -0.02em; }
.timeline p { margin-top: 12px; color: var(--ink-2); }
@media (max-width: 860px) {
  .timeline { grid-template-columns: minmax(0, 1fr); border-top: 0; border-left: 2px solid var(--asphalt); margin-left: 8px; }
  .timeline li { padding: 0 0 28px 28px; }
  .timeline li::before { left: -9px; top: 6px; }
}

.people { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.person { display: flex; align-items: center; gap: 18px; padding: 18px 0; border-top: 1.5px solid var(--asphalt); }
.person-plate { flex: none; display: inline-flex; align-items: center; justify-content: center; width: 64px; height: 64px; background: var(--asphalt); color: var(--on-dark); font-weight: 600; font-size: 1.25rem; letter-spacing: .04em; border-radius: 4px; }
.person-name { font-size: 1.25rem; font-weight: 600; }
@media (max-width: 760px) { .people { grid-template-columns: minmax(0, 1fr); gap: 0; } }

.address { line-height: 1.65; margin-top: 4px; }
.contact-line { display: flex; align-items: center; gap: 10px; margin-top: 18px; font-weight: 600; font-size: 1.125rem; }
.contact-line .icon { color: var(--sign); }
.drawing { border: 1px solid var(--rule); background: var(--slab); }
.drawing img { width: 100%; }

.facts-table { border-top: 1.5px solid var(--asphalt); }
.facts-table > div { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rule); }
.facts-table dt { color: var(--ink-2); }
.facts-table dd { font-weight: 600; }
@media (max-width: 520px) { .facts-table > div { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* ---------- investors ---------- */
.kv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--asphalt); }
.kv { padding: 24px 24px 24px 0; }
.kv + .kv { padding-left: 24px; border-left: 1px solid var(--rule); }
.kv dt { font-size: .9375rem; color: var(--ink-2); line-height: 1.4; min-height: 2.8em; }
.kv-value { display: block; font-size: clamp(1.625rem, 2.6vw, 2.125rem); font-weight: 300; letter-spacing: -0.015em; line-height: 1.15; margin-top: 8px; }
.kv-note { display: block; font-size: .875rem; color: var(--ink-2); margin-top: 8px; }
@media (max-width: 900px) {
  .kv-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kv:nth-child(odd) { padding-left: 0; border-left: 0; }
  .kv { border-bottom: 1px solid var(--rule); }
}
@media (max-width: 520px) {
  .kv-grid { grid-template-columns: minmax(0, 1fr); }
  .kv, .kv + .kv { padding-left: 0; border-left: 0; }
  .kv dt { min-height: 0; }
}
.stack-actions { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.stack-actions .contact-line { margin-top: 0; }
.disclaimer { border-left: 3px solid var(--rule-strong); padding: 4px 0 4px 24px; max-width: 52rem; }
.disclaimer h2 { font-size: 1rem; }
.disclaimer p { margin-top: 8px; font-size: .9375rem; color: var(--ink-2); }

/* ---------- careers ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; position: relative; }
.steps li { position: relative; padding-right: 8px; }
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 56px; right: 0; top: 21px; border-top: 2px dashed var(--marking); }
.steps h3 { margin-top: 18px; font-size: 1.1875rem; }
.steps p { margin-top: 6px; color: var(--ink-2); }
@media (max-width: 860px) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 36px; }
  .steps li:nth-child(2)::after { display: none; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps li::after { display: none; }
}
.apply-box { background: var(--slab); border: 1px solid var(--rule); border-top: 4px solid var(--sign); padding: clamp(24px, 3vw, 36px); }
.apply-box h3 { font-size: 1.5rem; }
.apply-box p { margin-top: 10px; color: var(--ink-2); }
.apply-box .btn { margin-top: 24px; }
.apply-box .small { margin-top: 16px; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(40px, 6vw, 88px); align-items: start; }
@media (max-width: 960px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
.form-title { font-size: clamp(1.5rem, 2.4vw, 1.875rem); margin-bottom: 24px; }
.form { display: grid; gap: 22px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
@media (max-width: 600px) { .field-row { grid-template-columns: minmax(0, 1fr); } }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-weight: 600; font-size: .9375rem; }
.opt { font-weight: 400; color: var(--ink-2); }
.field-hint { font-size: .875rem; color: var(--ink-2); margin-top: -4px; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: var(--white); border: 1.5px solid var(--rule-strong); border-radius: var(--radius);
  padding: 12px 14px; min-height: 50px; line-height: 1.4;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field textarea { resize: vertical; min-height: 168px; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--ink-2); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--sign); box-shadow: 0 0 0 3px var(--sign-wash); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: 3px solid var(--marking); outline-offset: 1px; }
.select { position: relative; }
.select select { appearance: none; -webkit-appearance: none; padding-right: 44px; cursor: pointer; }
.select::after { content: ""; position: absolute; right: 18px; top: 50%; width: 8px; height: 8px; margin-top: -6px; border-right: 2px solid var(--ink); border-bottom: 2px solid var(--ink); transform: rotate(45deg); pointer-events: none; }
.has-error input, .has-error select, .has-error textarea { border-color: var(--danger); }
.field-error { color: var(--danger); font-size: .9375rem; font-weight: 500; }
.field-check { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 4px 14px; align-items: start; }
.field-check input { width: 22px; height: 22px; min-height: 0; margin: 2px 0 0; accent-color: var(--sign); padding: 0; }
.field-check label { font-weight: 400; font-size: .9375rem; line-height: 1.5; }
.field-check .field-error { grid-column: 2; }
.form-actions { padding-top: 6px; }
.form-alert { background: var(--danger-wash); border-left: 4px solid var(--danger); padding: 16px 20px; margin-bottom: 24px; }
.form-alert p { font-weight: 600; color: var(--danger); }
.form-alert ul { margin-top: 8px; padding-left: 0; }
.form-alert li { margin-top: 4px; }
.form-alert a { color: var(--danger); }
.form-alert:focus { outline: 3px solid var(--marking); outline-offset: 2px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.success { background: var(--slab); border: 1px solid var(--rule); border-top: 4px solid var(--sign); padding: clamp(28px, 4vw, 48px); }
.success h2 { margin-top: 24px; font-size: clamp(1.75rem, 3vw, 2.25rem); }
.success p { margin-top: 10px; color: var(--ink-2); font-size: 1.125rem; }
.success .btn { margin-top: 28px; }
.contact-side h2 { font-size: 1.375rem; padding-bottom: 14px; border-bottom: 1.5px solid var(--asphalt); }
.contact-dl > div { padding: 14px 0; border-bottom: 1px solid var(--rule); }
.contact-dl dt { font-size: .875rem; color: var(--ink-2); }
.contact-dl dd { margin-top: 2px; font-weight: 500; overflow-wrap: anywhere; }
.contact-side .drawing { margin-top: 28px; }

/* ---------- legal ---------- */
.legal { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.legal-toc { position: sticky; top: calc(var(--top-height) + 24px); }
.legal-toc .updated { font-size: .875rem; color: var(--ink-2); padding-bottom: 12px; border-bottom: 1.5px solid var(--asphalt); }
.legal-toc ol { list-style: decimal inside; }
.legal-toc li { padding: 8px 0; border-bottom: 1px solid var(--rule); font-size: .9375rem; color: var(--ink-2); }
.legal-toc a { color: var(--ink); text-decoration: none; }
.legal-toc a:hover { color: var(--sign); text-decoration: underline; }
.legal-sec + .legal-sec { margin-top: 40px; }
.legal-sec h2 { font-size: 1.5rem; }
.legal-sec p { margin-top: 12px; max-width: 40em; }
@media (max-width: 860px) {
  .legal { grid-template-columns: minmax(0, 1fr); }
  .legal-toc { position: static; }
}

/* ---------- error page ---------- */
.errpage { padding-block: clamp(56px, 9vw, 120px); }
.errpage-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 80px); align-items: center; }
.err-code { display: inline-flex; align-items: center; gap: 12px; font-weight: 600; color: var(--ink-2); }
.errpage h1 { font-size: clamp(2.25rem, 4.6vw, 3.5rem); margin-top: 24px; }
.errpage .lead { margin-top: 16px; }
.err-ref { margin-top: 16px; color: var(--ink-2); }
.errpage .btn-row { margin-top: 32px; }
.err-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--rule); }
.err-links a { color: var(--ink); font-weight: 500; }
.errpage-art img { width: 100%; max-width: 420px; margin-left: auto; }
@media (max-width: 800px) { .errpage-grid { grid-template-columns: minmax(0, 1fr); } .errpage-art { display: none; } }

/* ---------- footer ---------- */
.site-footer { background: var(--asphalt-2); color: var(--on-dark-2); font-size: .9375rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 4fr) repeat(3, minmax(0, 2fr)) minmax(0, 3fr); gap: 32px; padding-block: clamp(48px, 6vw, 80px) 40px; }
.footer-brand p { margin-top: 18px; max-width: 22em; line-height: 1.55; }
.footer-col h2 { font-size: .9375rem; font-weight: 600; color: #fff; letter-spacing: 0; margin-bottom: 14px; }
.footer-col li + li { margin-top: 8px; }
.site-footer a { color: var(--on-dark); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-reach .address { line-height: 1.6; }
.footer-reach p { margin-top: 12px; }
.footer-base { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; padding-block: 20px 28px; border-top: 1px solid var(--asphalt-line); font-size: .875rem; }
.footer-base > p { margin-right: auto; }
.footer-legal { display: flex; flex-wrap: wrap; gap: 6px 20px; }
.site-footer .lang-switch { border-color: var(--on-dark-2); }
.site-footer .lang-switch a { color: var(--on-dark); }
.site-footer .lang-switch a + a { border-left-color: var(--on-dark-2); }
.site-footer .lang-switch a[aria-current="true"] { background: var(--on-dark); color: var(--asphalt-2); }
.site-footer .lang-switch a:not([aria-current]):hover { background: var(--asphalt-line); text-decoration: none; }
@media (max-width: 1000px) {
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-reach { grid-column: 1 / -1; }
}

/* ---------- motion & print ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
@media print {
  .top, .site-footer .lang-switch, .cta-band, .menu-btn { display: none !important; }
  body { background: #fff; }
  .pagehead { background: #fff; color: #000; }
  .pagehead h1, .pagehead .lead { color: #000; }
}