:root {
  --color-navy-depth: #06122A;
  --color-navy: #0A1F44;
  --color-navy-2: #123A5F;
  --color-gold: #C9A227;
  --color-gold-light: #E3C768;
  --color-red: #D64545;
  --color-paper: #F5F7FA;
  --color-card: #FFFFFF;
  --color-ink: #2B2B2B;
  --color-muted: #5A6B7A;
  --color-gray: #8A9BA8;
  --font-headline: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --fs-h1: 2.5rem;
  --fs-h2: 1.8rem;
  --fs-h3: 1.25rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --container-max: 1200px;
  --header-h: 72px;
  --shadow-sm: 0 1px 3px rgba(10, 31, 68, 0.08);
  --shadow-lg: 0 12px 28px rgba(10, 31, 68, 0.16);
}

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

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

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

button {
  font: inherit;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

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

a {
  color: var(--color-navy);
  text-underline-offset: 4px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--color-ink);
  background-color: var(--color-paper);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-headline);
  font-weight: 900;
  line-height: 1.25;
  color: var(--color-navy);
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

h3 {
  font-size: var(--fs-h3);
}

:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px var(--color-navy);
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 3rem);
}

.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;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn--gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy-depth);
}

.btn--gold:hover {
  background: var(--color-gold-light);
  border-color: var(--color-gold-light);
  color: var(--color-navy-depth);
  box-shadow: 0 6px 18px rgba(201, 162, 39, 0.35);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-navy);
  color: var(--color-navy);
}

.btn--outline:hover {
  background: var(--color-navy);
  color: var(--color-gold-light);
}

.btn--outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.65);
  color: #FFFFFF;
}

.btn--outline-light:hover {
  border-color: var(--color-gold-light);
  color: var(--color-gold-light);
}

.btn--sm {
  padding: 0.5rem 1.05rem;
  font-size: 0.875rem;
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 3000;
  padding: 0.75rem 1.4rem;
  background: var(--color-gold);
  color: var(--color-navy-depth);
  font-family: var(--font-headline);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-100%);
  transition: transform 0.2s ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid #FFFFFF;
}

.section {
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.section--dark {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.88);
}

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

.section__title {
  font-size: var(--fs-h2);
  letter-spacing: 0.01em;
  margin-bottom: 0.5rem;
}

.section__lead {
  max-width: 64ch;
  color: var(--color-muted);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.section--dark .section__lead {
  color: rgba(255, 255, 255, 0.72);
}

.section__rule {
  width: 76px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  margin-bottom: 1.25rem;
}

.kicker {
  display: inline-block;
  font-family: var(--font-headline);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.6rem;
}

.kicker::before {
  content: "//";
  color: var(--color-red);
  margin-right: 0.4em;
}

.rule {
  width: 76px;
  height: 3px;
  border: 0;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  margin: 1.5rem 0;
}

.divider {
  border: 0;
  border-top: 1px solid #E3E9F0;
  margin: 2rem 0;
}

.divider--dark {
  border-top-color: rgba(255, 255, 255, 0.12);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 1rem 0;
  font-size: 0.875rem;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-gray);
}

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

.breadcrumb a:hover {
  color: var(--color-navy);
  text-decoration: underline;
}

.breadcrumb [aria-current="page"] {
  color: var(--color-navy);
  font-weight: 700;
}

.breadcrumb--light a {
  color: rgba(255, 255, 255, 0.65);
}

.breadcrumb--light a:hover {
  color: var(--color-gold-light);
  text-decoration: none;
}

.breadcrumb--light [aria-current="page"] {
  color: var(--color-gold-light);
}

.breadcrumb--light li + li::before {
  color: rgba(255, 255, 255, 0.4);
}

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

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

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

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

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.card {
  background: var(--color-card);
  border: 1px solid #E3E9F0;
  border-left: 3px solid var(--color-gold);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-left-color: var(--color-gold-light);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card__title {
  font-family: var(--font-headline);
  font-size: var(--fs-h3);
  font-weight: 900;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}

.card__text {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.card--dark {
  background: var(--color-navy-2);
  border-left-color: var(--color-gold);
}

.card--dark .card__title {
  color: var(--color-gold-light);
}

.card--dark .card__text {
  color: rgba(255, 255, 255, 0.78);
}

.stat-num {
  font-family: var(--font-headline);
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--color-gold);
}

.stat-num--red {
  color: var(--color-red);
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border: 1px solid rgba(201, 162, 39, 0.5);
  background: rgba(201, 162, 39, 0.1);
  color: var(--color-navy);
  font-family: var(--font-headline);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tag--red {
  border-color: rgba(214, 69, 69, 0.4);
  background: rgba(214, 69, 69, 0.08);
  color: var(--color-red);
}

.tag--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card);
  font-size: 0.95rem;
}

.data-table th {
  padding: 0.875rem 1rem;
  font-family: var(--font-headline);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: left;
  color: var(--color-navy);
  background: var(--color-paper);
  border-bottom: 2px solid var(--color-gold);
}

.data-table td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid #E3E9F0;
}

.data-table tbody tr:hover td {
  background: #F8FAFC;
}

.num {
  font-family: var(--font-headline);
  font-weight: 700;
  text-align: right;
  color: var(--color-red);
}

.media {
  position: relative;
  display: block;
  overflow: hidden;
  min-height: 180px;
  background-color: var(--color-navy);
  background-image: linear-gradient(135deg, var(--color-navy-depth), var(--color-navy-2));
}

.media::before {
  content: "IMG";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  font-family: var(--font-headline);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.36em;
  text-indent: 0.36em;
  text-transform: uppercase;
  color: rgba(227, 199, 104, 0.45);
}

.media[data-label]::before {
  content: attr(data-label);
}

.media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}

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

.media--4x3 {
  aspect-ratio: 4 / 3;
}

.media--1x1 {
  aspect-ratio: 1 / 1;
}

.media--cut {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 92% 100%, 0 100%);
}

.callout {
  border: 1px solid #E3E9F0;
  border-left: 4px solid var(--color-gold);
  background: var(--color-card);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-sm);
}

.callout__title {
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.4rem;
}

.callout--red {
  border-left-color: var(--color-red);
}

.glossary-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.glossary-list dt {
  margin-top: 1rem;
  font-family: var(--font-headline);
  font-weight: 700;
  color: var(--color-navy);
}

.glossary-list dt::before {
  content: "▮";
  color: var(--color-gold);
  margin-right: 0.5rem;
}

.glossary-list dd {
  margin: 0.2rem 0 0 1.4rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.vert-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-headline);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
  line-height: 1.4;
}

.section--dark .vert-note {
  color: rgba(255, 255, 255, 0.5);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-navy-depth);
  background-image: linear-gradient(135deg, rgba(10, 31, 68, 0.98), rgba(18, 58, 95, 0.96));
  border-bottom: 1px solid rgba(201, 162, 39, 0.45);
  box-shadow: 0 1px 6px rgba(4, 12, 28, 0.28);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: var(--color-red);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: 0.9;
}

.site-header__inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.site-header__tools {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-header__axis {
  position: absolute;
  top: 50%;
  right: 0.4rem;
  z-index: 1;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  font-family: var(--font-headline);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
  pointer-events: none;
  user-select: none;
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  z-index: 5;
  pointer-events: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #FFFFFF;
  text-decoration: none;
  line-height: 1;
}

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

.brand__tile {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
  clip-path: polygon(0 0, 100% 0, 100% 75%, 75% 100%, 0 100%);
}

.brand__name {
  font-family: var(--font-headline);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}

.brand__accent {
  color: var(--color-gold);
}

.brand:hover .brand__accent {
  color: var(--color-gold-light);
}

.site-nav {
  position: static;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.site-nav a {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0.1rem;
  font-family: var(--font-headline);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

.site-nav a:hover {
  color: var(--color-gold-light);
}

.site-nav a:hover::after {
  transform: scaleX(1);
}

.site-nav a[aria-current="page"] {
  color: var(--color-gold-light);
  font-weight: 700;
}

.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--color-gold-light);
}

.site-header__login {
  display: inline-flex;
  align-items: center;
}

.site-header__login::before {
  content: "◆";
  display: inline-block;
  margin-right: 0.5em;
  color: var(--color-red);
  font-size: 0.5em;
  transform: translateY(-0.05em);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.nav-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-gold-light);
  transition: transform 0.2s ease, opacity 0.2s ease;
  transform-origin: center;
}

.nav-toggle:hover .nav-toggle__line {
  background: var(--color-gold);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-footer {
  position: relative;
  background-color: var(--color-navy-depth);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  color: rgba(255, 255, 255, 0.7);
  border-top: 4px solid var(--color-gold);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -4px;
  right: 0;
  width: min(220px, 18%);
  height: 4px;
  background: var(--color-red);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.6fr;
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.footer-brand__desc {
  max-width: 34ch;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

.footer-brand__trust {
  max-width: 44ch;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-col__title {
  display: inline-block;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(201, 162, 39, 0.5);
  font-family: var(--font-headline);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.footer-col__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col__list li {
  margin-bottom: 0.625rem;
}

.footer-col__list a {
  color: rgba(255, 255, 255, 0.68);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.footer-col__list a:hover {
  color: var(--color-gold-light);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-col--contact {
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--color-gold);
  padding: 1rem 1.25rem 0.75rem;
}

.footer-contact li {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-note {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.site-footer__bottom p {
  margin: 0;
}

@media (max-width: 960px) {
  .site-header__inner {
    flex-wrap: wrap;
    gap: 0.75rem;
    min-height: 0;
    padding-block: 0.625rem;
  }

  .site-header__tools {
    margin-left: auto;
    gap: 0.75rem;
  }

  html.js .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0.75rem 1.5rem 1.25rem;
    background: rgba(6, 18, 42, 0.98);
    border-bottom: 3px solid var(--color-gold);
    box-shadow: 0 14px 30px rgba(4, 12, 28, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
  }

  html.js .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  html:not(.js) .site-header__tools {
    flex-wrap: wrap;
    width: 100%;
    gap: 0.75rem;
  }

  html:not(.js) .site-header__login {
    order: 1;
    margin-left: auto;
  }

  html:not(.js) .site-nav {
    order: 2;
    width: 100%;
    padding-top: 0.625rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  html:not(.js) .nav-toggle {
    display: none;
  }

  html.js .nav-toggle {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.1rem;
  }

  .site-nav a {
    display: block;
    padding: 0.6rem 0.1rem;
  }

  .site-nav a::after {
    display: none;
  }

  .site-header__axis {
    display: none;
  }

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

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

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

  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-brand,
  .footer-col--contact {
    grid-column: auto;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header__login {
    font-size: 0.8125rem;
    padding: 0.45rem 0.7rem;
  }

  .brand__name {
    font-size: 1.15rem;
  }

  .brand__tile {
    width: 1rem;
    height: 1rem;
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
    gap: 4px;
  }

  .card {
    padding: 1.15rem;
  }

  .data-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

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