*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: #FFFFFF;
  background-color: #0A1F3F;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
:focus-visible {
  outline: 3px solid #00D4FF;
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0s !important;
    animation-duration: 0s !important;
  }
  html {
    scroll-behavior: auto;
  }
}
a {
  color: #00D4FF;
  text-decoration: none;
  transition: color 0.2s ease, box-shadow 0.2s ease;
}
a:hover {
  color: #D4A843;
}
a:focus-visible {
  outline: 3px solid #00D4FF;
  outline-offset: 2px;
}
ul, ol {
  list-style: none;
}
img, svg {
  max-width: 100%;
  display: block;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
:root {
  --color-primary: #0A1F3F;
  --color-secondary: #1A2A4A;
  --color-accent: #D4A843;
  --color-electric: #00D4FF;
  --color-text: #FFFFFF;
  --color-text-muted: #B0B8C4;
  --color-danger: #FF4D4F;
  --color-success: #2ECC71;
  --color-border: #D4A843;
  --shadow-heavy: 8px 8px 0 rgba(0,0,0,0.4);
  --shadow-light: 4px 4px 0 rgba(0,0,0,0.3);
  --border-thick: 4px solid #D4A843;
  --border-medium: 2px solid #D4A843;
  --font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  --header-width: 240px;
  --header-height-mobile: 60px;
  --transition-fast: 0.2s ease;
}
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  z-index: 10000;
  padding: 0.75rem 1.5rem;
  background-color: #D4A843;
  color: #0A1F3F;
  font-weight: 700;
  font-size: 0.875rem;
  border: 2px solid #FFFFFF;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0;
  outline: 3px solid #00D4FF;
  outline-offset: 2px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--header-width);
  height: 100vh;
  background-color: var(--color-primary);
  border-right: var(--border-thick);
  box-shadow: var(--shadow-heavy);
  z-index: 1000;
  display: flex;
  flex-direction: column;
}
.progress-indicator {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background-color: var(--color-accent);
  z-index: 10001;
  transition: width 0.1s linear;
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .progress-indicator {
    transition: none;
  }
}
.header-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 2rem 1.5rem;
}
.brand {
  margin-bottom: 2.5rem;
}
.brand-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  color: var(--color-accent);
  text-decoration: none;
}
.brand-link:hover {
  color: var(--color-electric);
}
.brand-name {
  font-size: 1.75rem;
  font-weight: 900;
  font-style: italic;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.1;
}
.brand-sub {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-top: 0.25rem;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  background: transparent;
  border: 2px solid var(--color-accent);
  border-radius: 4px;
  z-index: 2000;
}
.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-accent);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}
.site-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.nav-list {
  position: relative;
  padding-left: 1.25rem;
}
.nav-list::before {
  content: "";
  position: absolute;
  top: 0;
  left: 6px;
  width: 2px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-electric));
  opacity: 0.5;
}
.nav-item {
  position: relative;
  margin-bottom: 0.25rem;
}
.nav-item::before {
  content: "";
  position: absolute;
  left: -1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  border: 2px solid var(--color-accent);
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
  z-index: 1;
}
.nav-item:hover::before,
.nav-item:focus-within::before {
  background-color: var(--color-electric);
  box-shadow: 0 0 12px var(--color-electric);
}
.nav-link {
  display: block;
  padding: 0.6rem 0.8rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  border-radius: 2px;
}
.nav-link:hover {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  background-color: rgba(212,168,67,0.08);
}
.nav-link:focus-visible {
  outline: 3px solid var(--color-electric);
  outline-offset: 2px;
}
.nav-link[aria-current="page"] {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  background-color: rgba(212,168,67,0.12);
  font-weight: 700;
  font-style: italic;
}
.header-extra {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(212,168,67,0.25);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.header-search-btn,
.header-compare-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  background: transparent;
  border: 2px solid transparent;
  border-radius: 4px;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  text-decoration: none;
}
.header-search-btn:hover,
.header-compare-btn:hover {
  color: var(--color-electric);
  border-color: var(--color-electric);
  background-color: rgba(0,212,255,0.06);
}
.header-compare-btn {
  color: var(--color-accent);
  border-color: var(--color-accent);
  font-weight: 600;
}
.header-compare-btn:hover {
  background-color: rgba(212,168,67,0.12);
}
.icon-search,
.icon-compare {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-color: currentColor;
  mask-size: cover;
  -webkit-mask-size: cover;
}
.icon-search {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
}
.icon-compare {
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E");
}
.extra-label {
  font-size: 0.8rem;
}
.site-footer {
  background-color: var(--color-primary);
  border-top: var(--border-thick);
  box-shadow: var(--shadow-heavy);
  padding: 3rem 2rem 1.5rem;
  margin-left: var(--header-width);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
}
.footer-brand-link {
  font-size: 1.5rem;
  font-weight: 900;
  font-style: italic;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}
.footer-brand-link:hover {
  color: var(--color-electric);
}
.footer-tagline {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}
.footer-note {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  max-width: 30em;
  padding: 0.75rem;
  background-color: rgba(0,0,0,0.2);
  border-left: 3px solid var(--color-electric);
  border-radius: 2px;
}
.footer-links-title,
.footer-contact-title,
.footer-data-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212,168,67,0.3);
}
.footer-link {
  display: block;
  padding: 0.35rem 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer-link:hover {
  color: var(--color-electric);
}
.footer-contact {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.footer-email,
.footer-phone,
.footer-address {
  display: block;
  padding: 0.25rem 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
.footer-contact-note {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  line-height: 1.4;
  padding: 0.5rem;
  background-color: rgba(0,0,0,0.15);
  border-radius: 2px;
}
.footer-data-item {
  display: block;
  padding: 0.3rem 0;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  border-left: 2px solid var(--color-electric);
  padding-left: 0.6rem;
  margin-bottom: 0.3rem;
}
.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(212,168,67,0.2);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.footer-copyright {
  font-family: var(--font-mono);
}
.footer-icp {
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  opacity: 0.8;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  border: var(--border-medium);
  border-radius: 4px;
  box-shadow: var(--shadow-heavy);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease, color 0.2s ease;
  cursor: pointer;
}
.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 rgba(0,0,0,0.4);
}
.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0 rgba(0,0,0,0.4);
}
.btn:focus-visible {
  outline: 3px solid var(--color-electric);
  outline-offset: 2px;
}
.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background-color: #c99a3a;
  color: var(--color-primary);
}
.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background-color: rgba(212,168,67,0.1);
  color: var(--color-electric);
  border-color: var(--color-electric);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  background-color: transparent;
}
.breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.breadcrumb-item + .breadcrumb-item::before {
  content: ">";
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}
.breadcrumb-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.breadcrumb-link:hover {
  color: var(--color-electric);
}
.breadcrumb-link[aria-current="page"] {
  color: var(--color-accent);
  font-weight: 600;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.grid-col {
  min-width: 0;
}
.card {
  background-color: var(--color-secondary);
  border: var(--border-medium);
  border-radius: 4px;
  padding: 1.5rem;
  box-shadow: var(--shadow-heavy);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover {
  border-color: var(--color-electric);
  box-shadow: 8px 8px 0 rgba(0,212,255,0.15);
}
.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  font-style: italic;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
}
.card-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}
@media (max-width: 1023.98px) {
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height-mobile);
    flex-direction: row;
    border-right: none;
    border-bottom: var(--border-thick);
    box-shadow: var(--shadow-heavy);
    z-index: 1000;
  }
  .progress-indicator {
    top: 0;
    height: 3px;
  }
  .header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
    padding: 0 1rem;
  }
  .brand {
    margin-bottom: 0;
  }
  .brand-link {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }
  .brand-name {
    font-size: 1.25rem;
  }
  .brand-sub {
    font-size: 0.65rem;
    margin-top: 0;
  }
  .nav-toggle {
    display: flex;
  }
  .site-nav {
    position: fixed;
    top: var(--header-height-mobile);
    left: -100%;
    width: 280px;
    max-width: 80vw;
    height: calc(100vh - var(--header-height-mobile));
    background-color: var(--color-primary);
    border-right: var(--border-thick);
    box-shadow: var(--shadow-heavy);
    transition: left 0.3s ease;
    z-index: 999;
    padding: 1.5rem 1.25rem;
    flex-direction: column;
  }
  .site-nav[data-open] {
    left: 0;
  }
  .site-nav[data-open]::after {
    content: "";
    position: fixed;
    top: var(--header-height-mobile);
    left: 280px;
    width: calc(100vw - 280px);
    height: calc(100vh - var(--header-height-mobile));
    background-color: rgba(0,0,0,0.6);
    z-index: -1;
  }
  .nav-list {
    padding-left: 1.5rem;
  }
  .nav-list::before {
    left: 8px;
  }
  .nav-item::before {
    left: -1.5rem;
    width: 12px;
    height: 12px;
  }
  .nav-link {
    padding: 0.75rem 0.8rem;
    font-size: 1.05rem;
  }
  .header-extra {
    margin-top: 2rem;
    flex-direction: row;
    border-top: 1px solid rgba(212,168,67,0.25);
    padding-top: 1.25rem;
  }
  .site-footer {
    margin-left: 0;
    padding: 2rem 1.25rem 1rem;
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}
@media (max-width: 767.98px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .container {
    padding: 0 1rem;
  }
  .site-header {
    height: 56px;
  }
  .site-nav {
    top: 56px;
    height: calc(100vh - 56px);
  }
  .site-nav[data-open]::after {
    top: 56px;
    height: calc(100vh - 56px);
  }
  .brand-name {
    font-size: 1.1rem;
  }
  .brand-sub {
    display: none;
  }
  .btn {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
  }
  .card {
    padding: 1rem;
  }
}
@media (min-width: 1024px) {
  .site-header {
    width: var(--header-width);
    height: 100vh;
    border-right: var(--border-thick);
    border-bottom: none;
  }
  .header-inner {
    flex-direction: column;
    padding: 2rem 1.5rem;
  }
  .nav-toggle {
    display: none;
  }
  .site-nav {
    position: static;
    width: auto;
    height: auto;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
    transition: none;
  }
  .site-nav[data-open] {
    left: auto;
  }
  .site-nav[data-open]::after {
    display: none;
  }
  .nav-list {
    padding-left: 1.25rem;
  }
  .nav-item::before {
    left: -1.25rem;
    width: 10px;
    height: 10px;
  }
  .header-extra {
    flex-direction: column;
    margin-top: auto;
  }
}