:root {
  --color-navy: #0B1F3A;
  --color-navy-deep: #071426;
  --color-gold: #D4AF37;
  --color-orange: #FF6B35;
  --color-cream: #F7F3E8;
  --color-ink: #2D2A26;
  --color-muted: #90A4AE;
  --color-glass: rgba(255, 255, 255, 0.7);
  --color-alert: #8B0000;
  --color-line: rgba(11, 31, 58, 0.14);
  --font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-accent: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1280px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  background: var(--color-cream);
  color: var(--color-ink);
  font-family: var(--font-serif);
  font-size: 1rem;
  line-height: 1.75;
}

[hidden] {
  display: none !important;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
  color: var(--color-navy);
  line-height: 1.25;
  margin-top: 0;
}

a {
  color: var(--color-navy);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-orange);
}

button {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-orange);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--color-gold);
  color: var(--color-navy);
  padding: 0.75rem 1.25rem;
  font-family: var(--font-sans);
  font-weight: 700;
  text-decoration: none;
  border-radius: 0 0 8px 0;
}

.skip-link:focus-visible {
  left: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
  border-bottom: 2px solid var(--color-gold);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--color-gold), var(--color-orange));
  z-index: 3;
  pointer-events: none;
}

.site-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-orange));
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 10;
  pointer-events: none;
}

.header-upper {
  background: var(--color-navy-deep);
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
}

.header-upper-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 36px;
  padding-top: 0.3rem;
  padding-bottom: 0.3rem;
}

.header-claim {
  margin: 0;
  color: rgba(255, 255, 255, 0.64);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.header-support-link {
  color: var(--color-gold);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, 0.45);
  padding-bottom: 2px;
  transition: border-color 0.2s, color 0.2s;
}

.header-support-link:hover,
.header-support-link:focus-visible {
  color: var(--color-orange);
  border-color: var(--color-orange);
}

.header-main {
  position: relative;
  background: linear-gradient(180deg, rgba(11, 31, 58, 0.98), rgba(11, 31, 58, 0.96));
}

.header-main::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.header-main-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: #fff;
}

.brand:hover,
.brand:focus-visible {
  color: #fff;
}

.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  border-radius: 10px 10px 10px 2px;
  background: linear-gradient(135deg, var(--color-gold), #f5d77a 55%, var(--color-orange));
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(11, 31, 58, 0.5);
  border-radius: 6px 6px 6px 1px;
}

.brand-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  background: var(--color-navy);
  transform: translate(-50%, -50%) rotate(45deg);
}

.brand-name {
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1.08;
  letter-spacing: 0.02em;
}

.brand-name-en {
  margin-top: 3px;
  font-family: var(--font-accent);
  font-size: 0.58rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.34em;
  color: rgba(255, 255, 255, 0.5);
}

.main-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-link {
  display: block;
  padding: 0.65rem 0.9rem;
  border-radius: 7px;
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  position: relative;
  transition: color 0.2s, background 0.2s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.3rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-orange));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.28s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"] {
  color: #fff;
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--color-gold);
  background: rgba(212, 175, 55, 0.08);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 9px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: border-color 0.2s, background 0.2s;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--color-gold);
  background: rgba(212, 175, 55, 0.08);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--color-gold);
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform 0.22s var(--ease), opacity 0.22s var(--ease);
}

.site-header[data-open] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header[data-open] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.site-header[data-open] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  border-top: 4px solid var(--color-gold);
}

.footer-top {
  background: linear-gradient(180deg, #0d2445, var(--color-navy) 170%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: 3.5rem 2.5rem;
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 0.75rem;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: #fff;
  text-decoration: none;
}

.footer-brand-link:hover,
.footer-brand-link:focus-visible {
  color: var(--color-gold);
}

.footer-brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px 8px 8px 2px;
  background: linear-gradient(135deg, var(--color-gold), var(--color-orange));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
}

.footer-brand-name {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.footer-statement {
  margin: 0;
  max-width: 27rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.58);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

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

.footer-contact {
  display: grid;
  align-content: start;
  gap: 0.2rem;
}

.footer-heading {
  margin: 0 0 0.9rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
  color: var(--color-gold);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.68);
  text-decoration: none;
  transition: color 0.2s, padding-left 0.2s, border-color 0.2s;
  border-bottom: 1px solid transparent;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: var(--color-gold);
  padding-left: 0.3rem;
  border-bottom-color: rgba(212, 175, 55, 0.35);
}

.footer-contact-line {
  margin: 0.25rem 0;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.footer-contact-note {
  display: inline-block;
  justify-self: start;
  margin-top: 0.7rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--color-orange);
  border-radius: 5px;
  color: var(--color-orange);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.footer-bottom {
  background: rgba(0, 0, 0, 0.22);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem 1.5rem;
  padding-block: 1rem;
  color: rgba(255, 255, 255, 0.46);
  font-family: var(--font-sans);
  font-size: 0.78rem;
}

.footer-bottom-inner p {
  margin: 0;
}

.footer-icp {
  color: rgba(255, 255, 255, 0.55);
}

.footer-legal {
  flex-basis: 100%;
  text-align: center;
  opacity: 0.72;
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section-tint {
  background: rgba(212, 175, 55, 0.06);
}

.section-dark {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.78);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #fff;
}

.page-head {
  padding-block: clamp(3rem, 7vw, 5.5rem) 1.5rem;
  position: relative;
}

.page-head::after {
  content: "";
  display: block;
  width: 64px;
  height: 4px;
  margin-top: 1.25rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-orange));
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--color-orange);
  font-family: var(--font-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-title {
  margin: 0;
  color: var(--color-navy);
  font-family: var(--font-sans);
  font-size: clamp(2rem, 6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.page-intro {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: #5a5650;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.7;
}

.lead {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #4c4842;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-sans);
  font-size: 0.8rem;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-orange);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-navy);
  font-weight: 600;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-gap-lg {
  gap: 2.25rem;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  padding: 1.6rem;
  border: 1px solid rgba(11, 31, 58, 0.12);
  border-radius: 18px;
  background: var(--color-glass);
  box-shadow: 0 20px 40px rgba(11, 31, 58, 0.06);
  backdrop-filter: blur(8px);
  transition: border-color 0.25s, transform 0.25s var(--ease), box-shadow 0.25s;
}

.card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 28px 48px rgba(11, 31, 58, 0.1);
  transform: translateY(-4px);
}

.card-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-navy);
}

.card-text {
  margin: 0 0 1rem;
  line-height: 1.75;
}

.card-text:last-child {
  margin-bottom: 0;
}

.card-meta {
  display: block;
  margin-bottom: 0.6rem;
  color: var(--color-muted);
  font-family: var(--font-accent);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.8rem 1.4rem;
  border: 1px solid transparent;
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
  box-shadow: 0 8px 20px rgba(11, 31, 58, 0.18);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy);
  transform: translateY(-2px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.7);
  border-color: rgba(11, 31, 58, 0.24);
  color: var(--color-navy);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background: var(--color-cream);
  border-color: var(--color-navy);
  color: var(--color-navy);
}

.btn-orange {
  background: var(--color-orange);
  border-color: var(--color-orange);
  color: #fff;
}

.btn-orange:hover,
.btn-orange:focus-visible {
  background: #e85a24;
  border-color: #e85a24;
  transform: translateY(-2px);
}

.tag {
  display: inline-block;
  padding: 0.22rem 0.7rem;
  border-radius: 20px;
  border: 1px solid transparent;
  font-family: var(--font-accent);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  background: rgba(11, 31, 58, 0.06);
  color: var(--color-navy);
}

.tag-gold {
  background: rgba(212, 175, 55, 0.16);
  border-color: rgba(212, 175, 55, 0.3);
  color: #977914;
}

.tag-navy {
  background: var(--color-navy);
  color: var(--color-gold);
}

.tag-orange {
  background: rgba(255, 107, 53, 0.12);
  border-color: rgba(255, 107, 53, 0.28);
  color: #c8431d;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}

.filter-button {
  appearance: none;
  border: 1px solid rgba(11, 31, 58, 0.18);
  border-radius: 30px;
  background: transparent;
  padding: 0.55rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.filter-button:hover,
.filter-button:focus-visible {
  border-color: var(--color-gold);
  color: var(--color-navy);
}

.filter-button.is-active,
.filter-button[aria-pressed="true"] {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
}

.data-table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(11, 31, 58, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.6);
}

.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
  text-align: left;
  vertical-align: top;
}

.data-table thead th {
  background: rgba(212, 175, 55, 0.12);
  color: var(--color-navy);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background: rgba(212, 175, 55, 0.06);
}

.note {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  border-left: 4px solid var(--color-orange);
  border-radius: 0 12px 12px 0;
  background: rgba(255, 107, 53, 0.08);
  color: var(--color-ink);
}

.note-alert {
  border-left-color: var(--color-alert);
  background: rgba(139, 0, 0, 0.06);
}

.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 16px;
  background: linear-gradient(145deg, var(--color-navy), #12315a);
}

.media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 16px;
  background: linear-gradient(145deg, var(--color-navy), #12315a);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure-caption {
  margin-top: 0.55rem;
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 0.78rem;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-navy);
  font-family: var(--font-sans);
  font-weight: 600;
  text-decoration: none;
}

.link-arrow:hover,
.link-arrow:focus-visible {
  color: var(--color-orange);
}

html.js-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

html.js-enabled [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (max-width: 960px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-cols {
    grid-template-columns: 1fr 1fr;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }

  .grid-cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-cols-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .header-main-inner {
    min-height: 66px;
  }

  .brand {
    flex: 1;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 20;
    display: none;
    margin-left: 0;
    padding: 0.25rem 1.25rem 1.25rem;
    background: var(--color-navy);
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    box-shadow: 0 28px 48px rgba(0, 0, 0, 0.35);
  }

  .site-header[data-open] .main-nav {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .nav-link {
    padding: 0.9rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    font-size: 1rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link[aria-current="page"] {
    background: rgba(212, 175, 55, 0.12);
    color: var(--color-gold);
  }
}

@media (max-width: 768px) {
  .header-upper-inner {
    justify-content: center;
  }

  .header-claim {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
  }

  .header-support-link {
    display: none;
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .footer-cols {
    grid-template-columns: 1fr;
  }

  .footer-contact {
    grid-column: auto;
  }

  .footer-legal {
    flex-basis: 100%;
    text-align: left;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html.js-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }
}