/* ============================================================
   /assets/site.css — 澳州幸运10指南 · TEN 共享外壳样式
   深海蓝骨架 / 幸运金焦点 / 切角面板 / 等宽数字索引
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

html[data-nav-lock] { overflow: hidden; }

body {
  margin: 0;
  background: var(--paper-50);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, p, figure, blockquote { margin: 0; }

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

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

a { color: inherit; }

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

#main-content { scroll-margin-top: calc(var(--header-h) + 20px); }
#main-content:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--indigo-600);
  outline-offset: 2px;
}

/* ---------- 2. Tokens ---------- */
:root {
  --navy-950: #041723;
  --navy-800: #0A2C46;
  --indigo-600: #174C74;
  --gold-500: #F6C445;
  --gold-300: #FFE6A3;
  --coral-500: #FF6B57;
  --mint-400: #45D6B0;
  --paper-50: #F5F8FB;
  --ink-900: #111820;
  --slate-500: #5D6B78;
  --white: #FFFFFF;

  --font-sans: "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1200px;
  --rail: 1440px;
  --gutter: clamp(16px, 4vw, 48px);
  --gap: clamp(16px, 2.2vw, 28px);
  --header-h: 68px;
  --cut: 18px;

  --line: 1px solid rgba(17, 24, 32, 0.12);
  --line-dark: 1px solid rgba(245, 248, 251, 0.14);
  --shadow-1: 0 18px 42px -26px rgba(4, 23, 35, 0.65);
}

/* ---------- 3. Base typography ---------- */
.display,
.title-lg,
.title-md,
h1, h2, h3 {
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  color: inherit;
}

.display { font-size: clamp(40px, 7vw, 96px); line-height: 1.02; }
.title-lg { font-size: clamp(28px, 3.6vw, 48px); }
.title-md { font-size: clamp(20px, 2.2vw, 28px); line-height: 1.2; }

.lede {
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.7;
  color: var(--slate-500);
  max-width: 62ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--indigo-600);
  margin: 0;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--gold-500);
}

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

/* ---------- 4. Layout utilities ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(56px, 8vw, 120px); }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 32px;
  margin-bottom: clamp(24px, 3vw, 40px);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}

.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

/* ---------- 5. Panels / tags / stats ---------- */
.panel {
  background: var(--white);
  border: var(--line);
  padding: clamp(20px, 3vw, 36px);
  box-shadow: var(--shadow-1);
}

.panel-cut {
  clip-path: polygon(
    var(--cut) 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%,
    0 var(--cut)
  );
}

.panel-dark {
  background: var(--navy-800);
  color: var(--paper-50);
  border: 1px solid rgba(246, 196, 69, 0.22);
}
.panel-dark .lede { color: rgba(245, 248, 251, 0.74); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
  white-space: nowrap;
}
.tag-new { color: var(--coral-500); background: rgba(255, 107, 87, 0.1); }
.tag-ok { color: var(--mint-400); background: rgba(69, 214, 176, 0.1); }

.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 4vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--navy-950);
}

.stat-label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate-500);
}

.index-list { border-top: var(--line); }
.index-list li { border-bottom: var(--line); }
.index-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 2px;
  text-decoration: none;
  font-weight: 700;
  transition: color 160ms ease, padding-left 160ms ease;
}
.index-list a:hover,
.index-list a:focus-visible { color: var(--indigo-600); padding-left: 6px; }

/* ---------- 6. Image container foundation ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--navy-800);
  clip-path: polygon(
    24px 0,
    100% 0,
    100% calc(100% - 24px),
    calc(100% - 24px) 100%,
    0 100%,
    0 24px
  );
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 248, 251, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 248, 251, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.75;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: auto -12% -46% -12%;
  height: 74%;
  background:
    radial-gradient(ellipse at 28% 100%, rgba(246, 196, 69, 0.42), transparent 62%),
    radial-gradient(ellipse at 82% 100%, rgba(69, 214, 176, 0.34), transparent 62%);
}
.media-frame > img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-300);
}
.media-4x3 { aspect-ratio: 4 / 3; }
.media-1x1 { aspect-ratio: 1 / 1; }
.media-21x9 { aspect-ratio: 21 / 9; }

/* ---------- 7. Breadcrumb / prose / theme ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate-500);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before {
  content: "/";
  color: rgba(93, 107, 120, 0.55);
}
.breadcrumb a { text-decoration: none; }
.breadcrumb a:hover,
.breadcrumb a:focus-visible { color: var(--indigo-600); }

.prose { max-width: 70ch; }
.prose > * + * { margin-top: 20px; }
.prose h2 { font-size: clamp(22px, 2.4vw, 30px); margin-top: 40px; }
.prose h3 { font-size: clamp(18px, 1.8vw, 22px); margin-top: 28px; }
.prose ul,
.prose ol { list-style: disc; padding-left: 1.3em; }
.prose li + li { margin-top: 8px; }
.prose a {
  color: var(--indigo-600);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
  text-decoration-color: rgba(246, 196, 69, 0.8);
}
.prose strong { font-weight: 800; }

.theme-dark {
  background: var(--navy-950);
  color: var(--paper-50);
}
.theme-dark .lede { color: rgba(245, 248, 251, 0.72); }
.theme-dark .eyebrow { color: var(--gold-500); }
.theme-dark .stat-value { color: var(--gold-500); }
.theme-dark .stat-label { color: rgba(245, 248, 251, 0.55); }
.theme-dark .index-list,
.theme-dark .index-list li { border-color: rgba(245, 248, 251, 0.16); }
.theme-dark :focus-visible { outline-color: var(--gold-300); }

/* ---------- 8. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  background: transparent;
  color: inherit;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}
.btn:focus-visible { outline-offset: -4px; outline-color: currentColor; }

.btn-cut {
  clip-path: polygon(
    14px 0,
    100% 0,
    100% calc(100% - 14px),
    calc(100% - 14px) 100%,
    0 100%,
    0 14px
  );
}

.btn-gold {
  background: var(--gold-500);
  color: var(--navy-950);
}
.btn-gold:hover,
.btn-gold:focus-visible { background: var(--gold-300); }

.btn-ghost {
  border-color: rgba(246, 196, 69, 0.6);
  color: var(--gold-300);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: rgba(246, 196, 69, 0.14);
  border-color: var(--gold-500);
  color: var(--gold-300);
}

.btn-sm { padding: 9px 15px; font-size: 13px; }

/* ---------- 9. Skip link ---------- */
.skip-link {
  position: absolute;
  left: 14px;
  top: -80px;
  z-index: 300;
  display: inline-block;
  padding: 12px 20px;
  background: var(--gold-500);
  color: var(--navy-950);
  font-weight: 800;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: top 160ms ease;
}
.skip-link:focus { top: 12px; }

/* ---------- 10. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  color: var(--paper-50);
  background-color: var(--navy-950);
  background-image:
    linear-gradient(180deg, rgba(4, 23, 35, 0.98) 0%, rgba(10, 44, 70, 0.98) 100%),
    repeating-linear-gradient(90deg, rgba(245, 248, 251, 0.05) 0 1px, transparent 1px 64px);
  border-bottom: 1px solid rgba(246, 196, 69, 0.24);
}

.site-header :focus-visible { outline-color: var(--gold-300); }

.header-rail {
  position: relative;
  z-index: 230;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  max-width: var(--rail);
  min-height: var(--header-h);
  margin-inline: auto;
  padding: 10px var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: var(--paper-50);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  background: var(--gold-500);
  color: var(--navy-950);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
  transition: background-color 160ms ease;
}
.brand:hover .brand-mark,
.brand:focus-visible .brand-mark { background: var(--gold-300); }

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.brand-line {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
  white-space: nowrap;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1.2;
  color: rgba(245, 248, 251, 0.55);
}

.nav-zone {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex: 1 1 auto;
  min-width: 0;
}

.nav-scroll {
  min-width: 0;
  flex: 1 1 auto;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(246, 196, 69, 0.55) transparent;
}
.nav-scroll::-webkit-scrollbar { height: 4px; }
.nav-scroll::-webkit-scrollbar-thumb {
  background: rgba(246, 196, 69, 0.55);
  border-radius: 4px;
}

.nav-index { min-width: 0; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 9px 10px;
  border-bottom: 2px solid transparent;
  color: rgba(245, 248, 251, 0.78);
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease, border-color 160ms ease;
}
.nav-link:hover,
.nav-link:focus-visible {
  color: var(--gold-300);
  background: rgba(23, 76, 116, 0.55);
  border-bottom-color: var(--gold-500);
}
.nav-link[aria-current="page"] {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
  background: rgba(23, 76, 116, 0.4);
}

.nav-num {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--mint-400);
}
.nav-link[aria-current="page"] .nav-num { color: var(--gold-300); }

.header-cta { flex: 0 0 auto; }

.header-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 240;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--mint-400) 0%, var(--gold-500) 60%, var(--coral-500) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 90ms linear;
  pointer-events: none;
}

/* 移动悬浮球按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid rgba(246, 196, 69, 0.6);
  background: rgba(10, 44, 70, 0.95);
  color: var(--gold-300);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, border-color 160ms ease;
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: background-color 160ms ease;
}
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform 160ms ease, top 160ms ease;
}
.nav-toggle-bars::before { top: -7px; }
.nav-toggle-bars::after { top: 7px; }

.nav-toggle-label { font-size: 11px; }

.site-header[data-open] .nav-toggle-bars { background: transparent; }
.site-header[data-open] .nav-toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}
.site-header[data-open] .nav-toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ---------- 11. Footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  color: var(--paper-50);
  background-image:
    radial-gradient(130% 90% at 100% 0%, rgba(23, 76, 116, 0.6) 0%, rgba(23, 76, 116, 0) 62%),
    linear-gradient(180deg, #041723 0%, #072033 100%);
  padding-top: clamp(44px, 7vw, 84px);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(246, 196, 69, 0.65) 18%, rgba(246, 196, 69, 0.65) 62%, rgba(69, 214, 176, 0.5) 88%, transparent 100%);
}
.site-footer :focus-visible { outline-color: var(--gold-300); }

.footer-diagonal {
  position: absolute;
  top: 28px;
  right: -80px;
  width: min(48vw, 440px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold-500));
  transform: rotate(-17deg);
  opacity: 0.5;
  pointer-events: none;
}

.footer-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(28px, 4vw, 56px);
  width: 100%;
  max-width: var(--rail);
  margin-inline: auto;
  padding: clamp(24px, 4vw, 46px) var(--gutter) clamp(32px, 4vw, 52px);
}

.footer-brand { min-width: 0; }

.footer-summary {
  max-width: 34ch;
  margin-top: 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 248, 251, 0.72);
}

.footer-cta { margin-top: 22px; }

.footer-note {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(69, 214, 176, 0.85);
}

.footer-title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold-500);
}

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

.contact-item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(245, 248, 251, 0.14);
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(245, 248, 251, 0.84);
}

.contact-key {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245, 248, 251, 0.5);
}

.contact-val { min-width: 0; word-break: break-word; }

.footer-index {
  display: grid;
  align-content: start;
  gap: clamp(22px, 3vw, 34px);
}

.footer-group { display: grid; gap: 10px; }

.footer-list { display: grid; gap: 8px; }

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  color: rgba(245, 248, 251, 0.8);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}
.footer-link::before {
  content: "";
  width: 10px;
  height: 1px;
  background: var(--gold-500);
  opacity: 0.65;
  transition: width 160ms ease;
}
.footer-link:hover,
.footer-link:focus-visible {
  color: var(--gold-300);
  border-bottom-color: rgba(246, 196, 69, 0.7);
}
.footer-link:hover::before,
.footer-link:focus-visible::before { width: 20px; }

.footer-legal {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  width: 100%;
  max-width: var(--rail);
  margin-inline: auto;
  padding: 18px var(--gutter) 30px;
  border-top: 1px solid rgba(245, 248, 251, 0.14);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(245, 248, 251, 0.55);
}

.legal-meta { margin: 0; }
.legal-icp { margin: 0; color: var(--gold-300); }

/* ---------- 12. Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 420ms ease, transform 420ms cubic-bezier(0.2, 0.7, 0.3, 1);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 13. Responsive ---------- */
@media (max-width: 1120px) {
  .nav-link { font-size: 13px; padding: 9px 8px; }
  .brand-sub { letter-spacing: 0.16em; }
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); }
  .footer-index {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  .header-rail { gap: 12px; }

  .nav-toggle {
    display: inline-flex;
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 230;
    flex-direction: column;
    gap: 0;
    width: 58px;
    height: 58px;
    padding: 0;
    border-radius: 50%;
    border-color: rgba(4, 23, 35, 0.25);
    background: var(--gold-500);
    color: var(--navy-950);
    box-shadow: 0 16px 36px -14px rgba(4, 23, 35, 0.8);
  }
  .site-header[data-open] .nav-toggle {
    background: var(--navy-800);
    color: var(--gold-300);
    border-color: rgba(246, 196, 69, 0.7);
  }
  .nav-toggle-label { display: none; }

  .nav-zone {
    position: fixed;
    inset: 0;
    z-index: 210;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 24px;
    padding: calc(var(--header-h) + 44px) var(--gutter) 120px;
    overflow-y: auto;
    overscroll-behavior: contain;
    background-image:
      radial-gradient(120% 80% at 100% 0%, rgba(23, 76, 116, 0.75) 0%, rgba(23, 76, 116, 0) 60%),
      linear-gradient(180deg, #041723 0%, #0A2C46 100%);
    border-top: 1px solid rgba(246, 196, 69, 0.28);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px);
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  .site-header[data-open] .nav-zone {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .nav-scroll { flex: 0 0 auto; overflow: visible; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid rgba(245, 248, 251, 0.12);
  }
  .nav-link {
    justify-content: space-between;
    padding: 16px 4px;
    font-size: 19px;
    border-bottom: 1px solid rgba(245, 248, 251, 0.12);
    border-left: 0;
    border-right: 0;
    border-top: 0;
  }
  .nav-link:hover,
  .nav-link:focus-visible { background: rgba(23, 76, 116, 0.35); }
  .nav-num { font-size: 12px; }

  .header-cta {
    width: 100%;
    padding: 16px 20px;
    font-size: 16px;
  }

  .header-progress { height: 3px; }

  .span-3,
  .span-4 { grid-column: span 6; }
  .span-5,
  .span-6,
  .span-7,
  .span-8 { grid-column: span 12; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }

  .brand-mark { width: 40px; height: 40px; font-size: 11px; }
  .brand-line { font-size: 14px; }
  .brand-sub { font-size: 9px; letter-spacing: 0.14em; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-index { grid-template-columns: 1fr; }
  .contact-item { grid-template-columns: 56px minmax(0, 1fr); }
  .footer-legal { flex-direction: column; align-items: flex-start; }

  .span-3,
  .span-4,
  .span-5,
  .span-6,
  .span-7,
  .span-8 { grid-column: span 12; }

  .media-21x9 { aspect-ratio: 16 / 9; }
}

/* ---------- 14. 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;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .header-progress { transition: none; }
  .nav-zone { transition: none; }
}