* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #354052;
  background: var(--c-light, #F0F0F0);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 3px);
}

h1, h2, h3, h4, h5, h6 {
  font-family: Impact, 'Arial Black', 'Microsoft YaHei', sans-serif;
  font-weight: 900;
  line-height: 1.15;
  text-transform: uppercase;
  color: #0A1F44;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
}

ul, ol {
  padding-left: 1.5em;
}

a {
  color: #0E4D64;
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 3px solid #FF6B35;
  outline-offset: 2px;
  border-radius: 2px;
}

::selection {
  background: #FF6B35;
  color: #0A1F44;
}

:root {
  --c-primary: #0A1F44;
  --c-primary-2: #122D5E;
  --c-orange: #FF6B35;
  --c-silver: #C0C0C0;
  --c-teal: #0E4D64;
  --c-wine: #6D1A36;
  --c-indigo: #3B2A5E;
  --c-light: #F0F0F0;
  --c-cream: #FDFBF7;
  --font-display: Impact, 'Arial Black', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
  --font-data: 'Courier New', 'Consolas', monospace;
  --container: 1200px;
  --radius: 6px;
  --duration: 0.3s;
}

.site-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

@media (min-width: 768px) {
  .site-container {
    padding: 0 32px;
  }
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
  min-height: 60vh;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn-primary {
  background: var(--c-orange);
  color: var(--c-primary);
  border-color: var(--c-orange);
}

.btn-primary:hover {
  background: var(--c-primary);
  color: var(--c-orange);
  border-color: var(--c-orange);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--c-teal);
  border-color: var(--c-teal);
}

.btn-secondary:hover {
  background: var(--c-teal);
  color: #fff;
  border-color: var(--c-teal);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 20px 0 4px;
  font-size: 14px;
  color: #555;
}

.breadcrumbs a {
  color: var(--c-teal);
  text-decoration: none;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: #999;
}

.breadcrumbs [aria-current="page"] {
  color: #111;
  font-weight: 700;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -70px;
  z-index: 200;
  background: var(--c-orange);
  color: var(--c-primary);
  padding: 10px 18px;
  font-weight: 700;
  border-radius: 4px;
  text-decoration: none;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 8px;
}

.site-header {
  background: linear-gradient(180deg, #081832 0%, var(--c-primary) 20%, var(--c-primary-2) 100%);
  border-bottom: 2px solid rgba(192, 192, 192, 0.35);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 10px;
  padding-bottom: 10px;
  color: var(--c-silver);
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
  font-size: 12.5px;
}

.header-topline-right {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.header-pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-orange);
  margin-right: 8px;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.5);
  }
  50% {
    opacity: 0.6;
    box-shadow: 0 0 0 5px rgba(255, 107, 53, 0);
  }
}

.header-topline-note {
  font-size: 12px;
  color: rgba(192, 192, 192, 0.8);
}

.header-navwrap {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.header-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
}

.brand-mark {
  position: relative;
  width: 42px;
  height: 42px;
  background: var(--c-teal);
  border: 2px solid var(--c-silver);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 6px;
  transform: skew(-8deg);
  flex: 0 0 42px;
}

.brand-mark i {
  display: block;
  background: var(--c-orange);
  border-radius: 1px;
}

.brand-mark i:nth-child(2),
.brand-mark i:nth-child(3) {
  background: var(--c-silver);
}

.brand-text {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1;
  letter-spacing: 0.03em;
  font-weight: 900;
}

.brand-text small {
  display: block;
  font-family: var(--font-data);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--c-orange);
  margin-top: 4px;
}

.brand-tagline {
  font-family: var(--font-data);
  font-size: 11px;
  color: var(--c-silver);
  border-left: 1px solid rgba(192, 192, 192, 0.3);
  padding-left: 12px;
  margin: 0;
  letter-spacing: 0.08em;
}

.nav-toggle {
  display: none;
}

.site-nav {
  z-index: 100;
}

.site-nav ul {
  display: flex;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-light);
  text-decoration: none;
  position: relative;
  letter-spacing: 0.04em;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 3px;
  background: var(--c-orange);
  transform: scaleX(0) skewX(-20deg);
  transform-origin: left;
  transition: transform 0.22s;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: #fff;
}

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1) skewX(-20deg);
}

.site-nav a[aria-current="page"] {
  background: rgba(255, 107, 53, 0.14);
}

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--c-orange);
  box-shadow: 0 0 8px rgba(255, 107, 53, 0.6);
  z-index: 5;
}

.header-tape {
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--c-wine) 0 12px, #9A2949 12px 16px, var(--c-wine) 16px 28px, var(--c-silver) 28px 32px, var(--c-wine) 32px 44px);
}

.font-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 107, 53, 0.12);
  border: 1px solid rgba(255, 107, 53, 0.45);
  color: var(--c-orange);
  border-radius: 999px;
  padding: 3px 10px;
  font-family: var(--font-data);
  font-size: 12px;
  cursor: pointer;
}

.font-toggle:hover {
  background: rgba(255, 107, 53, 0.22);
}

.font-toggle[aria-pressed="true"] {
  background: var(--c-orange);
  color: var(--c-primary);
  border-color: var(--c-orange);
}

.font-toggle-icon {
  font-weight: 700;
  font-size: 13px;
}

@media (max-width: 860px) {
  .header-topline {
    font-size: 12px;
  }

  .header-topline-note {
    display: none;
  }

  .brand-tagline {
    display: none;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    flex-basis: 36px;
    gap: 4px;
    padding: 4px;
  }

  .brand-text {
    font-size: 21px;
  }

  .header-nav-inner {
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 107, 53, 0.12);
    border: 1px solid rgba(255, 107, 53, 0.4);
    color: var(--c-orange);
    padding: 8px 14px;
    border-radius: 6px;
    cursor: pointer;
    margin-left: auto;
    font-family: var(--font-data);
    font-size: 13px;
  }

  .nav-toggle-lines i {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    margin: 3px 0;
    border-radius: 2px;
    transition: transform 0.2s;
  }

  .nav-toggle.is-active .nav-toggle-lines i:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
  }

  .nav-toggle.is-active .nav-toggle-lines i:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-active .nav-toggle-lines i:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
  }

  .nav-toggle-text {
    letter-spacing: 0.08em;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-primary);
    border-bottom: 2px solid var(--c-silver);
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-6px);
    transition: visibility 0s linear 0.3s, opacity 0.22s ease, transform 0.22s ease, max-height 0.32s ease;
  }

  .site-nav[data-open] {
    visibility: visible;
    opacity: 1;
    transform: none;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    transition: visibility 0s, opacity 0.22s ease, transform 0.22s ease, max-height 0.32s ease;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 12px 16px 24px;
  }

  .site-nav li {
    width: 100%;
  }

  .site-nav a {
    color: var(--c-silver);
    font-size: 19px;
    padding: 14px 16px;
    border-left: 4px solid transparent;
    border-radius: 0;
  }

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

  .site-nav a:hover,
  .site-nav a[aria-current="page"] {
    color: #fff;
    border-left-color: var(--c-orange);
    background: rgba(255, 255, 255, 0.04);
  }
}

.site-footer {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #081832 0%, var(--c-primary) 30%, #060F24 100%);
  color: var(--c-silver);
  border-top: 4px solid rgba(192, 192, 192, 0.5);
}

.footer-glow {
  position: absolute;
  top: -80px;
  right: 10%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.3), transparent 60%);
  filter: blur(60px);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 0.9fr 1.5fr;
  gap: 40px;
  padding: 64px 0 40px;
}

.footer-brand .footer-eyebrow {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-orange);
  margin-bottom: 10px;
}

.footer-title {
  color: #fff;
  font-size: 36px;
  margin: 0 0 12px;
}

.footer-trust {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(192, 192, 192, 0.85);
  max-width: 44ch;
}

.footer-links h3,
.footer-contact h3 {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.1em;
  color: #fff;
  margin: 0 0 14px;
  text-transform: none;
}

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

.footer-links li {
  margin: 0 0 8px;
}

.footer-links a {
  color: var(--c-silver);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.15s, padding-left 0.15s;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-contact p {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--c-silver);
}

.footer-phone {
  font-family: var(--font-data);
  color: #fff;
  font-size: 26px;
  margin-bottom: 8px;
}

.footer-support {
  font-family: var(--font-data);
  font-size: 13px;
  color: #9FB4C8;
}

.footer-service-note {
  font-size: 12px;
  color: rgba(192, 192, 192, 0.72);
  margin-top: 10px;
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0 28px;
  border-top: 1px solid rgba(192, 192, 192, 0.18);
  font-size: 13px;
  color: rgba(192, 192, 192, 0.75);
}

.footer-legacy {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--c-silver);
}

.top-link {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 150;
  background: var(--c-orange);
  color: var(--c-primary);
  border: 1px solid var(--c-orange);
  padding: 12px 18px;
  border-radius: 999px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s, transform 0.25s, visibility 0s linear 0.25s;
}

.top-link.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 0.25s, transform 0.25s, visibility 0s;
}

.top-link:hover {
  background: var(--c-primary);
  color: var(--c-orange);
  border-color: var(--c-orange);
}

.content-container {
  max-width: 76ch;
  margin: 0 auto;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.grid-span-3 {
  grid-column: span 3;
}

.grid-span-4 {
  grid-column: span 4;
}

.grid-span-6 {
  grid-column: span 6;
}

.grid-span-8 {
  grid-column: span 8;
}

.grid-span-9 {
  grid-column: span 9;
}

@media (max-width: 860px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .grid-span-3,
  .grid-span-4,
  .grid-span-6,
  .grid-span-8,
  .grid-span-9 {
    grid-column: auto;
  }
}

.magazine-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  margin: 36px 0;
}

.magazine-aside {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--c-teal);
  line-height: 1.9;
  letter-spacing: 0.06em;
  padding-top: 6px;
}

.magazine-body {
  min-width: 0;
}

@media (max-width: 720px) {
  .magazine-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.masthead-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 40px;
  padding: 48px 0 40px;
  align-items: end;
}

.masthead-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6.5vw, 80px);
  line-height: 0.95;
  text-transform: uppercase;
  margin: 0;
  color: var(--c-primary);
}

.masthead-index {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--c-teal);
  line-height: 1.8;
  border-left: 2px solid var(--c-orange);
  padding-left: 16px;
  margin: 0;
}

.display-title {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 64px);
  line-height: 0.98;
  color: var(--c-primary);
  margin-bottom: 0.2em;
}

.lede {
  font-size: 18px;
  line-height: 1.85;
  color: #445;
  max-width: 62ch;
  margin-bottom: 28px;
}

.figure-placeholder {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #1A3968, var(--c-teal));
  border: 1px solid rgba(192, 192, 192, 0.4);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.figure-placeholder::before {
  content: attr(data-figure-label);
  color: var(--c-silver);
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  z-index: 1;
}

.figure-placeholder::after {
  content: "";
  position: absolute;
  inset: -28px;
  background: repeating-linear-gradient(90deg, transparent 0 22px, rgba(255, 255, 255, 0.05) 22px 26px);
  animation: figure-scan 7s linear infinite;
}

@keyframes figure-scan {
  from {
    transform: translateX(-28px);
  }
  to {
    transform: translateX(28px);
  }
}

.tag {
  display: inline-block;
  background: var(--c-wine);
  color: #fff;
  padding: 4px 12px;
  font-size: 13px;
  border-radius: 20px;
  line-height: 1.5;
  margin-right: 6px;
}

.tag--wine {
  background: var(--c-wine);
}

.tag--teal {
  background: var(--c-teal);
}

.tag--indigo {
  background: var(--c-indigo);
}

.tag--outline {
  background: transparent;
  border: 1px solid var(--c-silver);
  color: #111;
}

.data-stat {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--c-orange);
  background: var(--c-primary);
  padding: 2px 8px;
  border-radius: 3px;
  display: inline-block;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--c-cream);
  font-size: 15px;
  border: 1px solid rgba(192, 192, 192, 0.4);
}

.data-table th {
  background: var(--c-primary);
  color: #fff;
  text-align: left;
  padding: 10px 14px;
  font-family: var(--font-data);
  font-weight: 700;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid rgba(192, 192, 192, 0.5);
}

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

.data-table tr:hover td {
  background: rgba(255, 107, 53, 0.06);
}

.expand-panel {
  background: var(--c-cream);
  border: 1px solid rgba(14, 77, 100, 0.18);
  border-left: 4px solid var(--c-teal);
  border-radius: var(--radius);
  padding: 0 20px;
  margin: 16px 0;
}

.expand-panel summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 0;
  font-weight: 700;
  color: var(--c-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
}

.expand-panel summary::-webkit-details-marker {
  display: none;
}

.expand-panel summary::after {
  content: "+";
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border: 1px solid var(--c-orange);
  color: var(--c-orange);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 15px;
  margin-left: 16px;
}

.expand-panel[open] summary::after {
  content: "–";
}

.expand-panel[open] summary {
  color: var(--c-teal);
}

.panel-body {
  padding: 0 0 20px;
  color: #354052;
  line-height: 1.85;
}

.steps {
  counter-reset: step;
  display: grid;
  gap: 16px;
  margin: 32px 0;
  list-style: none;
  padding: 0;
}

.step {
  position: relative;
  padding: 22px 22px 22px 86px;
  background: rgba(14, 77, 100, 0.06);
  border-left: 2px solid var(--c-orange);
  counter-increment: step;
  border-radius: 4px;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 18px;
  height: 44px;
  min-width: 44px;
  padding: 0 8px;
  background: var(--c-primary);
  color: var(--c-orange);
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.step h3 {
  margin-bottom: 6px;
}

.index-list {
  margin: 24px 0;
  font-size: 14px;
}

.index-list dt {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--c-teal);
  letter-spacing: 0.04em;
}

.index-list dd {
  margin: 0 0 12px;
  color: #445;
  line-height: 1.7;
}

.glass-panel {
  background: rgba(253, 251, 247, 0.78);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 10px;
  padding: 24px;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

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

body[data-font-scale="large"] .site-main {
  font-size: 19px;
}

body[data-font-scale="large"] .site-main h1 {
  font-size: 3.1em;
}

body[data-font-scale="large"] .site-main h2 {
  font-size: 2.2em;
}

body[data-font-scale="large"] .site-main h3 {
  font-size: 1.5em;
}

body[data-font-scale="large"] .lede {
  font-size: 21px;
}

body[data-font-scale="large"] .data-table {
  font-size: 16px;
}

body[data-font-scale="large"] .masthead-index {
  font-size: 14px;
}

@media (max-width: 980px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

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

@media (max-width: 720px) {
  .masthead-block {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 28px;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .top-link {
    right: 12px;
    bottom: 12px;
    padding: 10px 14px;
  }
}

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

  .js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .header-pulse-dot {
    animation: none;
  }

  .figure-placeholder::after {
    animation: none;
  }
}