/* 鹏城好房数据 — shared styles. No external fonts or scripts (mainland access). */
:root {
  --ink: #0e2a47;
  --ink-2: #1d3b5c;
  --ink-soft: #e4ebf2;
  --paper: #f3f5f7;
  --surface: #ffffff;
  --line: #d3dbe3;
  --line-strong: #a9b7c4;
  --text: #15212e;
  --muted: #586776;
  --seal: #b8202f;
  --seal-dark: #941826;
  --ok: #1f7a4d;
  --warn: #8a5300;
  --danger: #b42318;
  --code-bg: #0e2a47;
  --code-text: #e8eef5;
  --code-muted: #9fb3c8;

  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-seal: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", serif;
  --font-code: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.375rem;
  --fs-xl: 1.875rem;
  --fs-hero: clamp(1.9rem, 1.1rem + 2.6vw, 2.85rem);

  --r-sm: 4px;
  --r-md: 8px;
  --gap: 1.5rem;
  --wrap: 1180px;
  --focus: 0 0 0 3px rgba(184, 32, 47, 0.35);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  font-variant-numeric: tabular-nums;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--ink); text-underline-offset: 3px; }
a:hover { color: var(--seal); }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: var(--r-sm); }
h1, h2, h3 { line-height: 1.3; margin: 0; color: var(--ink); }
p { margin: 0; }
code, pre, kbd { font-family: var(--font-code); }
.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
[hidden] { display: none !important; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Seal logo: four characters set like a carved name seal. */
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--ink); font-weight: 600; font-size: var(--fs-md); }
.seal {
  display: grid; grid-template-columns: 1fr 1fr; place-items: center;
  width: 34px; height: 34px; padding: 2px;
  background: var(--seal); color: #fff; border-radius: 3px;
  font-family: var(--font-seal); font-weight: 700; font-size: 12px; line-height: 1;
  box-shadow: inset 0 0 0 2px var(--seal), inset 0 0 0 3px rgba(255,255,255,0.55);
}
.seal span { display: block; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 64px; gap: 1rem; }
.site-nav { display: flex; align-items: center; gap: 0.25rem; }
.site-nav a:not(.btn) { padding: 0.5rem 0.75rem; border-radius: var(--r-sm); text-decoration: none; color: var(--text); font-size: 0.95rem; }
.site-nav a:not(.btn):hover { background: var(--ink-soft); color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.site-nav .btn { margin-left: 0.5rem; }
@media (max-width: 720px) {
  .site-nav a.nav-optional { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 44px; padding: 0 1.2rem; border-radius: var(--r-sm);
  border: 1px solid var(--ink); background: var(--surface); color: var(--ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn:hover { background: var(--ink-soft); color: var(--ink); }
.btn-primary { background: var(--seal); border-color: var(--seal); color: #fff; }
.btn-primary:hover { background: var(--seal-dark); border-color: var(--seal-dark); color: #fff; }
.btn-ink { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-ink:hover { background: var(--ink-2); color: #fff; }
.btn-quiet { border-color: var(--line); }
.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: #fdecea; color: var(--danger); }
.btn[disabled], .btn[aria-busy="true"] { opacity: 0.55; cursor: not-allowed; }
.btn-sm { min-height: 36px; padding: 0 0.8rem; font-size: var(--fs-sm); }

/* Sections */
.section { padding: 4.5rem 0; border-top: 1px solid var(--line); }
.section h2 { font-size: var(--fs-xl); margin-bottom: 0.75rem; }
.section .lead { color: var(--muted); max-width: 40em; }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--line); padding: 2rem 0 2.5rem; color: var(--muted); font-size: var(--fs-sm); }
.site-footer .wrap { display: grid; gap: 0.75rem; }
.footer-row { display: flex; flex-wrap: wrap; gap: 0.4rem 1.5rem; align-items: center; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--ink); }
.beian { display: inline-flex; align-items: center; gap: 0.35rem; }

/* Code */
.code {
  background: var(--code-bg); color: var(--code-text); border-radius: var(--r-md);
  padding: 1rem 1.15rem; overflow-x: auto; font-size: 0.86rem; line-height: 1.65; margin: 0;
}
.code .c { color: var(--code-muted); }
.code .k { color: #ffd38a; }
.code .s { color: #9ee6c1; }

/* Tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { padding: 0.6rem 0.85rem; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; background: #f8fafb; }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }

/* Forms */
.field { display: grid; gap: 0.35rem; }
.field label { font-weight: 600; font-size: 0.95rem; }
.field .hint { color: var(--muted); font-size: var(--fs-sm); }
.error { color: var(--danger); font-size: var(--fs-sm); min-height: 1.2em; }
input[type="text"], input[type="tel"], input[type="number"], select {
  font: inherit; min-height: 44px; padding: 0 0.85rem; width: 100%;
  border: 1px solid var(--line-strong); border-radius: var(--r-sm); background: var(--surface); color: var(--text);
}
input:focus-visible, select:focus-visible { border-color: var(--seal); }
input[aria-invalid="true"] { border-color: var(--danger); }
.check { display: flex; gap: 0.55rem; align-items: flex-start; font-size: var(--fs-sm); color: var(--muted); }
.check input { width: 18px; height: 18px; margin-top: 0.2rem; accent-color: var(--seal); }

.notice { border-left: 3px solid var(--warn); background: #fff7e8; padding: 0.75rem 1rem; color: #5c3b00; font-size: var(--fs-sm); border-radius: 0 var(--r-sm) var(--r-sm) 0; }
.notice-ok { border-left-color: var(--ok); background: #eaf6ef; color: #134d31; }
.notice-danger { border-left-color: var(--danger); background: #fdecea; color: #7a1a12; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0ms !important; animation-duration: 0ms !important; }
}