/* ============================================================
   rules-dezhou.com.cn — shared site kit
   档案室 × 仪表盘 / 墨绿 + 米白 + 琥珀金 + 冷灰蓝
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, dl, dd, figure, blockquote {
  margin: 0;
}

ul, ol { padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

button, input, select, textarea { font: inherit; color: inherit; }

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

table { border-collapse: collapse; width: 100%; }

/* ---------- tokens ---------- */
:root {
  --ink-900: #0C231D;
  --ink-700: #164034;
  --moss-500: #2E6350;
  --paper: #F5F1E8;
  --paper-soft: #EFE9DC;
  --paper-warm: #FBF3DF;
  --paper-card: #FCF9F2;
  --slate-300: #C9D5DE;
  --slate-600: #5B7386;
  --amber: #D9A441;
  --amber-soft: #F2CE8A;
  --stone: #3B4247;
  --clay: #B3653F;
  --text: #141A18;
  --text-muted: #4A544F;

  --line: rgba(12, 35, 29, 0.14);
  --line-strong: rgba(12, 35, 29, 0.28);
  --line-light: rgba(245, 241, 232, 0.16);
  --line-light-strong: rgba(245, 241, 232, 0.34);

  --font-display: "HarmonyOS Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", "Liberation Mono", monospace;

  --shadow-1: 0 1px 2px rgba(12, 35, 29, 0.08);
  --shadow-2: 0 2px 8px rgba(12, 35, 29, 0.12);

  --shell: 1280px;
  --gutter: 28px;
  --rail-top: 118px;
}

@media (max-width: 640px) {
  :root { --gutter: 18px; --rail-top: 0px; }
}

/* ---------- base typography ---------- */
body {
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.24;
  color: var(--ink-900);
}

h1 { font-size: clamp(30px, 4.6vw, 44px); }
h2 { font-size: clamp(24px, 3.2vw, 34px); }
h3 { font-size: clamp(20px, 2.4vw, 26px); }
h4 { font-size: 20px; font-weight: 700; }
h5 { font-size: 17px; font-weight: 700; }

p { font-size: 17px; }

strong, b { font-weight: 700; color: var(--ink-900); }

a:hover { color: var(--ink-700); }

:where(a, button, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- utilities ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.88em;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate-600);
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--amber);
  transform: rotate(45deg);
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-600);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, 18px);
}

.hr-rule {
  height: 1px;
  border: 0;
  background: var(--line);
  margin: 24px 0;
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 200;
  transform: translateY(-180%);
  background: var(--amber);
  color: var(--ink-900);
  border: 1px solid var(--ink-900);
  padding: 10px 18px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: transform 0.16s ease;
}

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

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--ink-900);
  color: var(--paper);
  border-bottom: 1px solid var(--line-light);
}

.read-progress {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(201, 213, 222, 0.18);
  pointer-events: none;
}

.read-progress__fill {
  display: block;
  height: 100%;
  width: 0;
  background: var(--amber);
  transition: width 0.1s linear;
}

/* masthead */
.masthead {
  padding: 20px 0 15px;
  border-bottom: 1px solid var(--line-light);
  transition: padding 0.2s ease;
}

.masthead__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}

.masthead__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--slate-300);
  white-space: nowrap;
}

.masthead__meta .mono { color: var(--amber); font-size: 11px; }
.masthead__meta--right { justify-content: flex-end; }

.masthead__dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--moss-500);
  flex: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  justify-self: center;
  color: var(--paper);
}

.brand:hover { color: var(--paper); }

.brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border: 1px solid var(--amber);
  color: var(--amber);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1;
  padding-bottom: 2px;
  transition: width 0.2s ease, height 0.2s ease, font-size 0.2s ease;
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.05em;
  line-height: 1.1;
  transition: font-size 0.2s ease;
}

.brand__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--slate-300);
}

/* navbar */
.navbar {
  background: var(--ink-700);
  color: var(--paper);
}

.navbar__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 52px;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(245, 241, 232, 0.82);
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

.site-nav__link:hover {
  color: var(--paper);
  border-bottom-color: var(--moss-500);
  background: rgba(245, 241, 232, 0.05);
}

.site-nav__link[aria-current="page"] {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.site-nav__link[aria-current="page"]::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--amber);
  transform: rotate(45deg);
  flex: none;
}

.navbar__tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line-light-strong);
  background: rgba(245, 241, 232, 0.04);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--paper);
  white-space: nowrap;
  transition: border-color 0.16s ease, color 0.16s ease, background-color 0.16s ease;
}

.tool-link::before {
  content: "";
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 50%;
  flex: none;
}

.tool-link:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(217, 164, 65, 0.08);
}

/* nav toggle */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line-light-strong);
  color: var(--paper);
  transition: border-color 0.16s ease, color 0.16s ease;
}

.nav-toggle:hover { border-color: var(--amber); color: var(--amber); }

.nav-toggle__bars {
  display: block;
  width: 16px;
  height: 10px;
  background-image:
    linear-gradient(currentColor, currentColor),
    linear-gradient(currentColor, currentColor),
    linear-gradient(currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 100% 2px, 100% 2px, 100% 2px;
  background-position: 0 0, 0 50%, 0 100%;
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

/* compact header */
.site-header.is-compact .masthead { padding: 8px 0; }
.site-header.is-compact .brand__mark { width: 30px; height: 30px; font-size: 15px; }
.site-header.is-compact .brand__name { font-size: 19px; }
.site-header.is-compact .brand__tagline { display: none; }
.site-header.is-compact .masthead__meta { display: none; }
.site-header.is-compact .masthead__inner { grid-template-columns: 1fr; }

/* ---------- breadcrumb ---------- */
.breadcrumb {
  background: var(--slate-300);
  color: var(--ink-900);
  border-bottom: 1px solid var(--slate-600);
}

.breadcrumb__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 40px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

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

.breadcrumb__link { color: var(--ink-700); border-bottom: 1px solid transparent; }
.breadcrumb__link:hover { color: var(--ink-900); border-bottom-color: var(--slate-600); }

.breadcrumb__sep { color: var(--slate-600); }
.breadcrumb__current { color: var(--ink-900); font-weight: 500; }

/* ---------- layout ---------- */
main { display: block; }

.layout-split {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
  gap: 32px;
  align-items: start;
  padding-top: 34px;
}

.content-col { min-width: 0; }

.rail {
  position: sticky;
  top: var(--rail-top);
  min-width: 0;
}

.rail__panel {
  background: var(--ink-900);
  border: 1px solid var(--ink-900);
  box-shadow: var(--shadow-1);
  padding: 18px 16px;
  color: var(--paper);
}

.rail__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}

.rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-left: 3px solid transparent;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: rgba(245, 241, 232, 0.78);
  transition: color 0.16s ease, background-color 0.16s ease, border-color 0.16s ease;
}

.rail__link:hover {
  color: var(--paper);
  background: rgba(245, 241, 232, 0.06);
}

.rail__link.is-active {
  border-left-width: 6px;
  border-left-color: var(--amber);
  color: var(--amber);
  background: rgba(217, 164, 65, 0.12);
}

@media (max-width: 960px) {
  .layout-split { grid-template-columns: 1fr; gap: 24px; }
  .rail { position: static; }
}

/* ---------- section heading ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 18px;
  border-left: 3px solid var(--ink-700);
  padding-left: 14px;
  margin-bottom: 20px;
}

.section-head__title {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  color: var(--ink-900);
  line-height: 1.3;
}

.section-head__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-600);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--ink-900);
  background: transparent;
  color: var(--ink-900);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.2;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.btn:hover { background: var(--ink-900); color: var(--paper); }

.btn--primary {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-900);
}

.btn--primary:hover {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--amber-soft);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink-700);
}

.btn--ghost:hover { background: var(--ink-700); border-color: var(--ink-700); color: var(--paper); }

.btn--sm { padding: 7px 14px; font-size: 13px; }

/* ---------- card ---------- */
.card {
  background: var(--paper-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
}

.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 18px;
  background: var(--ink-700);
  color: var(--paper);
}

.card__title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: inherit;
}

.card__body { padding: 18px; }
.card__body > * + * { margin-top: 14px; }

/* ---------- collapsible panel ---------- */
.panel {
  border: 1px solid var(--line);
  background: var(--paper-card);
  box-shadow: var(--shadow-1);
}

.panel + .panel { margin-top: 10px; }

.panel__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
  transition: background-color 0.16s ease;
}

.panel__summary::-webkit-details-marker { display: none; }
.panel__summary::marker { content: ""; }

.panel__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--amber);
}

.panel[open] > .panel__summary {
  background: var(--paper-warm);
  border-bottom: 1px solid var(--line);
}

.panel[open] > .panel__summary::after { content: "–"; }

.panel__body {
  padding: 16px 18px 20px;
  font-size: 16px;
}

.panel__body > * + * { margin-top: 12px; }

/* ---------- tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 9px;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.7;
  color: var(--stone);
  white-space: nowrap;
}

.tag--amber { background: var(--amber-soft); border-color: var(--amber); color: var(--ink-900); }
.tag--slate { background: var(--slate-300); border-color: var(--slate-600); color: var(--ink-900); }
.tag--clay { background: var(--clay); border-color: var(--clay); color: #FFF6EF; }

/* ---------- callout ---------- */
.callout {
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  background: var(--paper-warm);
  padding: 16px 20px;
  font-size: 16px;
  color: var(--ink-900);
}

.callout__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 6px;
}

/* ---------- figures / image containers ---------- */
.figure { margin: 0; }

.figure__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  background-color: var(--paper-soft);
  background-image:
    linear-gradient(rgba(91, 115, 134, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 115, 134, 0.16) 1px, transparent 1px);
  background-size: 28px 28px;
}

.figure__frame > img,
.figure__frame > svg,
.figure__frame > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--wide .figure__frame { aspect-ratio: 21 / 9; }
.figure--square .figure__frame { aspect-ratio: 1 / 1; }
.figure--tall .figure__frame { aspect-ratio: 3 / 4; }

.figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate-600);
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: 96px;
  background: var(--ink-900);
  color: var(--paper);
  border-top: 3px solid var(--amber);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 0.62fr 0.62fr 0.62fr 1.35fr;
  gap: 36px;
  padding-top: 54px;
  padding-bottom: 40px;
}

.footer__brand { display: block; }

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
}

.footer-brand:hover { color: var(--amber-soft); }

.footer-brand__name {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.footer__note {
  margin-top: 16px;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.72);
}

.footer__stamp {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--slate-300);
  border-top: 1px solid var(--line-light);
  padding-top: 12px;
  max-width: 22ch;
}

.footer__cols { display: contents; }

.footer__col { min-width: 0; }

.footer__col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 14px;
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 500;
  color: rgba(245, 241, 232, 0.76);
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.footer__link:hover {
  color: var(--amber);
  border-bottom-color: rgba(217, 164, 65, 0.6);
}

.footer__contact {
  border-left: 1px solid var(--line-light);
  padding-left: 24px;
  min-width: 0;
}

.footer__list--contact { gap: 12px; }

.footer__contact-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
}

.footer__contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate-300);
  padding-top: 3px;
}

.footer__contact-val {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.86);
  word-break: break-word;
}

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 18px;
  padding-bottom: 26px;
  border-top: 1px solid var(--line-light);
  font-size: 12px;
  color: rgba(245, 241, 232, 0.6);
}

.footer__copy { font-size: 12px; color: inherit; }

.footer__icp {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-300);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer__legal a {
  color: rgba(245, 241, 232, 0.72);
  border-bottom: 1px solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.footer__legal a:hover {
  color: var(--amber);
  border-bottom-color: rgba(217, 164, 65, 0.6);
}

/* ---------- reveal ---------- */
[data-reveal] { transition: opacity 0.3s ease, transform 0.3s ease; }

.reveal-on [data-reveal]:not(.is-visible) {
  opacity: 0;
  transform: translateY(10px);
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .footer__inner {
    grid-template-columns: 1.4fr 0.7fr 0.7fr 0.7fr;
    gap: 28px;
  }
  .footer__contact {
    grid-column: 1 / -1;
    border-left: 0;
    border-top: 1px solid var(--line-light);
    padding-left: 0;
    padding-top: 22px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    gap: 6px 28px;
    align-items: start;
  }
  .footer__contact .footer__col-title { grid-column: 1 / -1; }
  .footer__contact .footer__note { margin-top: 0; }
}

@media (max-width: 880px) {
  .masthead { padding: 14px 0 12px; }
  .masthead__inner { grid-template-columns: 1fr; gap: 10px; justify-items: center; }
  .masthead__meta { display: none; }
  .brand__name { font-size: 22px; }
  .site-header.is-compact .brand__name { font-size: 18px; }

  .navbar__inner {
    min-height: 56px;
    gap: 12px;
    flex-wrap: nowrap;
  }

  .nav-toggle { display: inline-flex; flex: none; }
  .navbar__tools { margin-left: auto; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: calc(var(--gutter) * -1);
    right: calc(var(--gutter) * -1);
    display: none;
    flex: none;
    justify-content: flex-start;
    background: var(--ink-900);
    border-top: 1px solid var(--line-light);
    border-bottom: 1px solid var(--line-light);
    box-shadow: var(--shadow-2);
    padding: 6px var(--gutter) 16px;
    max-height: calc(100vh - 130px);
    overflow-y: auto;
  }

  .site-nav[data-open="true"] { display: block; }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    padding: 13px 12px;
    border-bottom: 1px solid var(--line-light);
    border-left: 2px solid transparent;
    border-top: 0;
    font-size: 16px;
  }

  .site-nav__link:hover { background: rgba(245, 241, 232, 0.06); border-bottom-color: var(--line-light); }

  .site-nav__link[aria-current="page"] {
    border-left-color: var(--amber);
    border-bottom-color: var(--line-light);
    background: rgba(217, 164, 65, 0.1);
  }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  p { font-size: 16px; }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 26px 20px;
    padding-top: 40px;
  }
  .footer__brand { grid-column: 1 / -1; }
  .footer__contact { grid-template-columns: 1fr; }
  .footer__base { justify-content: flex-start; }
  .layout-split { padding-top: 24px; }
}

@media (max-width: 460px) {
  .brand { gap: 10px; }
  .brand__mark { width: 34px; height: 34px; font-size: 17px; }
  .brand__name { font-size: 19px; letter-spacing: 0.03em; }
  .brand__tagline { font-size: 9px; letter-spacing: 0.12em; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__contact-item { grid-template-columns: 44px minmax(0, 1fr); }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal],
  .reveal-on [data-reveal]:not(.is-visible) {
    opacity: 1;
    transform: none;
  }
}