:root {
  --lacquer: #9c3f35;
  --lacquer-deep: #6f2e2b;
  --indigo: #4b3763;
  --ivory: #f6efe4;
  --paper: #fffaf2;
  --ink: #241f22;
  --muted: #5d5354;
  --line: rgba(75, 55, 99, 0.16);
  --shadow: 0 18px 50px rgba(76, 43, 40, 0.10);
  --serif: "Noto Serif SC", "Songti SC", SimSun, serif;
  --sans: "Noto Sans SC", "Microsoft YaHei", Arial, sans-serif;
  --fs-meta: 13px;
  --fs-support: 15px;
  --fs-body: 16px;
  --fs-heading-small: 18px;
  --fs-title: 24px;
  --fs-display: 36px;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-heavy: 800;
  --lh-tight: 1.25;
  --lh-display: 1.3;
  --lh-nav: 1.4;
  --lh-heading: 1.5;
  --lh-deck: 1.55;
  --lh-support: 1.75;
  --lh-body: 1.9;
  --tracking-normal: 0;
  --tracking-display: .02em;
  --tracking-brand: .04em;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-section: 92px;
  --gap-number-label: 8px;
  --gap-button-group: 12px;
  --control-height: 48px;
  --control-height-compact: 42px;
  --tap-target-min: 44px;
  --button-radius: 3px;
}

html:lang(vi),
html:lang(en) {
  --sans: "Noto Sans", Arial, sans-serif;
  --serif: "Noto Serif", Georgia, serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--ivory);
  font-family: var(--sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-support);
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
img { display: block; width: 100%; height: 100%; object-fit: cover; }

.container { width: min(1320px, calc(100% - 48px)); margin: 0 auto; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--lacquer);
  font-size: var(--fs-heading-small);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-display);
}
.display-title,
.section-title {
  margin: 0;
  line-height: var(--lh-tight);
}
.display-title {
  font-family: var(--serif);
  font-size: var(--fs-display);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-display);
  letter-spacing: var(--tracking-display);
}
.section-title {
  color: var(--lacquer-deep);
  font-family: var(--sans);
  font-size: var(--fs-title);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-normal);
}
.section-title-accent { color: var(--lacquer-deep); }
.section-deck {
  margin: 8px 0 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-heading-small);
  font-weight: var(--fw-medium);
  line-height: var(--lh-deck);
}
.section-kicker {
  margin: 7px 0 0;
  color: var(--lacquer);
  font-size: var(--fs-support);
  font-weight: var(--fw-bold);
}
.lead { color: #443c3e; font-size: var(--fs-body); line-height: var(--lh-body); }
.caption { color: var(--muted); font-size: var(--fs-meta); line-height: var(--lh-support); }
.prose { color: var(--ink); font-size: var(--fs-body); line-height: var(--lh-body); text-align: left; }
.prose p { margin: 0 0 var(--space-4); text-indent: 0; }
.prose p:last-child { margin-bottom: 0; }
.number-label { display: inline-grid; grid-template-columns: 26px minmax(0, auto); align-items: baseline; gap: var(--gap-number-label); white-space: nowrap; }
.number-label [data-number] {
  color: var(--lacquer);
  font-size: var(--fs-heading-small);
  font-weight: var(--fw-heavy);
  line-height: var(--lh-heading);
  font-variant-numeric: tabular-nums;
}
.number-label strong,
.number-label h3 {
  margin: 0;
  font-size: var(--fs-heading-small);
  font-weight: var(--fw-bold);
  line-height: var(--lh-heading);
}

.btn {
  display: inline-flex;
  min-height: var(--control-height);
  align-items: center;
  justify-content: center;
  padding: 0 var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--button-radius);
  background: var(--lacquer);
  color: #fff;
  font-size: var(--fs-support);
  font-weight: var(--fw-bold);
  transition: transform .25s ease, background .25s ease, color .25s ease;
}
.btn:hover, .btn:focus-visible { transform: translateY(-2px); background: var(--lacquer-deep); }
.btn-outline { border-color: rgba(75, 55, 99, .38); background: transparent; color: var(--indigo); }
.btn-outline:hover, .btn-outline:focus-visible { background: var(--indigo); color: #fff; }

.site-header { position: relative; z-index: 30; background: rgba(246, 239, 228, .96); }
.header-inner { display: flex; min-height: 86px; align-items: center; gap: 22px; }
.brand { display: flex; flex: 0 0 auto; align-items: center; }
.brand img { width: 188px; height: auto; object-fit: contain; }
.site-nav { flex: 1; }
.nav-list { display: flex; align-items: center; justify-content: center; gap: 4px; margin: 0; padding: 0; list-style: none; }
.nav-list > .nav-item { position: relative; }
.nav-list a { display: flex; min-height: 40px; align-items: center; padding: 0 9px; border-radius: 4px; white-space: nowrap; font-size: var(--fs-support); font-weight: var(--fw-semibold); line-height: var(--lh-nav); transition: background .2s ease, color .2s ease; }
.nav-list a:hover,
.nav-list a:focus-visible { background: rgba(156, 63, 53, .12); color: var(--lacquer-deep); }
.nav-list a[aria-current="page"] { background: var(--lacquer); color: #fff; }
.nav-dropdown { margin: 0; padding: 0; list-style: none; }
.nav-submenu-toggle { display: none; }
.mobile-query-link { display: none; }
.language { white-space: nowrap; color: var(--muted); font-size: var(--fs-meta); }
.query-link { min-height: var(--control-height-compact); padding: 0 18px; background: var(--indigo); }
.mobile-toggle { display: none; width: var(--tap-target-min); height: var(--tap-target-min); border: 0; background: transparent; color: var(--indigo); font: var(--fw-bold) var(--fs-support) var(--sans); }

.section-head { display: grid; grid-template-columns: minmax(340px, 410px) minmax(0, 1fr); align-items: end; gap: 44px; margin-bottom: 38px; }
.section-head > p { max-width: none; margin: 0; color: var(--muted); }
.text-link { color: var(--lacquer); font-size: var(--fs-support); font-weight: var(--fw-bold); }

.reveal { opacity: 1; transform: translateY(12px); transition: transform .45s ease; }
.reveal.is-visible { transform: none; }

.proposal-switcher {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: flex;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 5px;
  box-shadow: 0 12px 36px rgba(35, 23, 33, .28);
  background: var(--indigo);
  color: #fff;
}
.proposal-switcher a { min-width: var(--control-height); padding: 10px var(--space-3); text-align: center; font-size: var(--fs-meta); font-weight: var(--fw-bold); font-variant-numeric: tabular-nums; }
.proposal-switcher a + a { border-left: 1px solid rgba(255,255,255,.22); }
.proposal-switcher a.active { background: var(--lacquer); }

.site-footer { padding: var(--space-8) 0 var(--space-6); background: var(--lacquer-deep); color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: var(--space-7); }
.footer-logo { width: 190px; height: auto; filter: brightness(0) invert(1); opacity: .95; }
.site-footer h3 { margin: 0 0 var(--space-4); color: #fff; font-family: var(--sans); font-size: var(--fs-heading-small); font-weight: var(--fw-bold); }
.site-footer p { margin: 0; color: #fff; font-size: var(--fs-support); }
.site-footer a { margin: 0; color: #fff; font-size: var(--fs-support); }
.site-footer .footer-profile > p {
  color: #fff;
  font-size: var(--fs-support);
  font-weight: var(--fw-regular);
  line-height: var(--lh-support);
}
.site-footer .footer-profile > .footer-address { margin-top: var(--space-4); color: #fff; }
.site-footer .footer-profile > .footer-email { margin-top: var(--space-2); color: #fff; overflow-wrap: anywhere; }
.footer-brand-copy { display: grid; gap: var(--space-1); }
.site-footer .footer-emblem > small { color: #fff; }
.site-footer .footer-brand-copy > span { color: #fff; }
.site-footer .footer-brand-copy > small { color: #fff; font-size: var(--fs-meta); font-weight: var(--fw-medium); line-height: var(--lh-support); }
.footer-links { display: grid; gap: var(--space-2); }
.site-footer .footer-grid h3 { color: #fff; }
.site-footer .footer-links a { width: fit-content; color: #fff; line-height: var(--lh-support); }
.footer-links a:hover, .footer-links a:focus-visible, .footer-email a:hover, .footer-email a:focus-visible { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { display: flex; justify-content: space-between; gap: var(--space-5); margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid rgba(255,255,255,.28); color: #fff; font-size: var(--fs-meta); }
.site-footer .footer-bottom > span { color: #fff; }
.footer-bottom-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-4); }
.site-footer .footer-bottom a { color: #fff; font-size: var(--fs-meta); font-weight: var(--fw-semibold); }
.site-footer .footer-bottom a:hover,
.site-footer .footer-bottom a:focus-visible { color: #fff; text-decoration: underline; text-underline-offset: 4px; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

@media (max-width: 1340px) {
  .header-inner { min-height: 74px; }
  .brand img { width: 166px; }
  .mobile-toggle { display: block; margin-left: auto; }
  .language, .header-inner > .query-link { display: none; }
  .site-nav { position: fixed; inset: 74px 0 0; display: none; overflow: auto; padding: 24px; background: var(--ivory); }
  body.menu-open .site-nav { display: block; }
  body.menu-open { overflow: hidden; }
  .nav-list { align-items: stretch; flex-direction: column; gap: 0; }
  .nav-list > .nav-item > a { min-height: 54px; border-bottom: 1px solid var(--line); border-radius: 0; font-size: var(--fs-body); line-height: var(--lh-heading); }
  .nav-list > .has-submenu > a { padding-right: 62px; }
  .nav-submenu-toggle {
    position: absolute;
    top: 5px;
    right: 0;
    z-index: 2;
    display: grid;
    width: var(--tap-target-min);
    height: var(--tap-target-min);
    place-items: center;
    border: 0;
    border-radius: var(--button-radius);
    background: transparent;
    color: var(--indigo);
    font: var(--fw-medium) var(--fs-heading-small) / 1 var(--sans);
    cursor: pointer;
  }
  .nav-submenu-toggle:hover,
  .nav-submenu-toggle:focus-visible,
  .nav-item.submenu-open > .nav-submenu-toggle { background: rgba(156, 63, 53, .10); color: var(--lacquer-deep); }
  .nav-dropdown { display: none; padding: var(--space-1) 0 var(--space-3) var(--space-5); background: rgba(156, 63, 53, .045); }
  .nav-item.submenu-open > .nav-dropdown { display: grid; }
  .nav-dropdown a { min-height: var(--tap-target-min); padding: 0 var(--space-4); border-bottom: 1px solid rgba(75, 55, 99, .08); border-radius: 0; color: var(--muted); font-size: var(--fs-support); font-weight: var(--fw-medium); line-height: var(--lh-nav); }
  .nav-dropdown li:last-child a { border-bottom: 0; }
  .nav-item.submenu-open > a { background: rgba(156, 63, 53, .10); color: var(--lacquer-deep); }
  .mobile-query-link { display: flex; width: 100%; min-height: var(--control-height); justify-content: center; margin-top: var(--space-5); background: var(--indigo); }
}

@media (min-width: 1341px) {
  .nav-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 50%;
    z-index: 70;
    display: grid;
    width: max-content;
    min-width: 188px;
    padding: var(--space-2);
    border: 1px solid rgba(75, 55, 99, .10);
    border-radius: var(--button-radius);
    background: #fffaf2;
    box-shadow: 0 18px 42px rgba(55, 37, 49, .14);
    opacity: 0;
    transform: translate(-50%, -6px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
  }
  .nav-dropdown::before { position: absolute; right: 0; bottom: 100%; left: 0; height: var(--space-2); content: ""; }
  .nav-item:nth-last-child(-n+2) > .nav-dropdown { right: 0; left: auto; transform: translateY(-6px); }
  .nav-item.has-submenu:hover > .nav-dropdown,
  .nav-item.has-submenu:focus-within > .nav-dropdown,
  .nav-item.has-submenu.submenu-open > .nav-dropdown { opacity: 1; transform: translate(-50%, 0); visibility: visible; pointer-events: auto; }
  .nav-item:nth-last-child(-n+2):hover > .nav-dropdown,
  .nav-item:nth-last-child(-n+2):focus-within > .nav-dropdown,
  .nav-item:nth-last-child(-n+2).submenu-open > .nav-dropdown { transform: none; }
  .nav-dropdown a { min-height: var(--tap-target-min); padding: 0 var(--space-4); border-radius: 2px; color: var(--ink); font-size: var(--fs-support); font-weight: var(--fw-medium); }
  .nav-dropdown a:hover,
  .nav-dropdown a:focus-visible { background: rgba(156, 63, 53, .10); color: var(--lacquer-deep); }
}

@media (max-width: 900px) {
  .section-head { grid-template-columns: 1fr; align-items: start; gap: 16px; margin-bottom: 28px; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 40px, 1320px); }
  .display-title { font-size: var(--fs-title); }
  .section-title { font-size: var(--fs-title); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6) var(--space-5); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .footer-grid > :last-child { grid-column: 1 / -1; }
  .footer-grid > :last-child .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }
  .footer-bottom-nav { justify-content: flex-start; }
  .proposal-switcher { right: 12px; bottom: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

/* Module headings use one reading column: title first, supporting copy below. */
.section-head {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: var(--space-3);
}

.section-head > p {
  margin: 0;
}