:root {
  --bg-deep: #0A1128;
  --bg-panel: #122044;
  --bg-elevated: #16295A;
  --accent: #FF6B1A;
  --accent-soft: #FFA500;
  --cyan: #00E5FF;
  --text-main: #F0F4FF;
  --text-sub: #B0C4DE;
  --line: #2A3B5C;
  --font-display: "Chakra Petch", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-data: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --header-h: 72px;
  --rail-width: 300px;
  --container: 1200px;
  --radius: 20px;
  --radius-md: 14px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  --glow: 0 0 26px rgba(0, 229, 255, 0.16);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

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

a {
  color: inherit;
}

button {
  font: inherit;
  cursor: pointer;
}

address {
  font-style: normal;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  line-height: 1.15;
  color: var(--text-main);
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 600;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: rgba(255, 107, 26, 0.4);
  color: #ffffff;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin-inline: auto;
}

.section {
  padding-block: clamp(3.5rem, 7vw, 6.5rem);
}

.section-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.section-kicker {
  display: block;
  margin-bottom: 0.4rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.4rem);
  letter-spacing: 0.02em;
}

.section-desc {
  max-width: 62ch;
  margin: 0.5rem 0 0;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.grid {
  display: grid;
  gap: 1.25rem;
}

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

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

.card {
  background: linear-gradient(165deg, rgba(18, 32, 68, 0.9), rgba(13, 24, 48, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 2vw, 1.75rem);
  box-shadow: var(--shadow);
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.3), var(--glow);
}

.card-panel {
  background: linear-gradient(165deg, rgba(18, 32, 68, 0.7), rgba(7, 12, 28, 0.85));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 2vw, 2rem);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.2s var(--ease), box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-soft));
  color: #0A1128;
  font-weight: 700;
}

.btn-primary:hover {
  box-shadow: 0 12px 30px rgba(255, 107, 26, 0.3);
}

.btn-ghost {
  background: rgba(0, 229, 255, 0.06);
  border-color: rgba(0, 229, 255, 0.45);
  color: var(--cyan);
}

.btn-ghost:hover {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.7);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--text-sub);
}

.tag-live {
  border-color: rgba(0, 229, 255, 0.45);
  background: rgba(0, 229, 255, 0.08);
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tag-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: status-pulse 1.2s infinite;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--text-sub);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

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

.breadcrumb a:hover {
  color: var(--accent);
}

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

.data-number {
  font-family: var(--font-data);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

pre,
code {
  font-family: var(--font-data);
}

pre {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1rem;
  overflow: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.7rem 0.5rem;
  text-align: left;
  vertical-align: top;
}

th {
  font-family: var(--font-data);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 229, 255, 0.12), transparent 46%),
    linear-gradient(135deg, #0D1830, #16295A);
  box-shadow: inset 0 0 40px rgba(10, 17, 40, 0.5);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.media-frame--square::before {
  padding-top: 100%;
}

.media-frame--portrait::before {
  padding-top: 110%;
}

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

.media-placeholder {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  padding: 1rem;
  text-align: center;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-sub);
  background: radial-gradient(circle at 70% 20%, rgba(255, 107, 26, 0.08), transparent 60%);
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  z-index: 10001;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #0A1128;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transform: translate(-50%, -320%);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus {
  transform: translate(-50%, 0);
}

.site-header {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  width: var(--rail-width);
  padding: 1.5rem 1.25rem 1.25rem;
  background: linear-gradient(180deg, #0D1830 0%, #0A1128 100%);
  border-right: 1px solid var(--line);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(115deg, transparent 0 36px, rgba(0, 229, 255, 0.05) 36px 37px, transparent 37px 74px);
}

.site-header > * {
  position: relative;
  z-index: 1;
}

.header-brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  color: var(--text-main);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #081026;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  box-shadow: 0 0 26px rgba(255, 107, 26, 0.32);
}

.brand-text {
  display: grid;
  gap: 0.1rem;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.brand-product {
  font-family: var(--font-data);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  line-height: 1.3;
  color: var(--cyan);
}

.slogan {
  margin: 0.65rem 0 1.5rem calc(3.4rem);
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--text-sub);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.55rem 0.45rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
}

.nav-toggle:hover {
  border-color: rgba(0, 229, 255, 0.45);
  background: rgba(0, 229, 255, 0.06);
}

.nav-toggle-label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.nav-toggle-box {
  display: grid;
  align-content: space-between;
  width: 20px;
  height: 16px;
}

.nav-toggle-line {
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0.2);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.site-nav {
  flex: 1;
  min-width: 0;
  margin-top: 1.75rem;
}

.nav-list {
  counter-reset: nav;
  display: grid;
  gap: 0.2rem;
}

.nav-link {
  position: relative;
  counter-increment: nav;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.8rem 0.85rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-sub);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: color 0.2s, background 0.25s, border-color 0.25s, transform 0.25s var(--ease);
}

.nav-link::before {
  content: counter(nav, decimal-leading-zero);
  min-width: 1.6rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--accent);
  opacity: 0.7;
}

.nav-link:hover {
  color: var(--text-main);
  background: linear-gradient(90deg, rgba(255, 107, 26, 0.12), rgba(0, 229, 255, 0.04));
  border-color: rgba(255, 107, 26, 0.25);
  transform: translateX(4px);
}

.nav-link[aria-current="page"] {
  color: var(--accent);
  background: rgba(255, 107, 26, 0.1);
  border-color: rgba(255, 107, 26, 0.32);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0.65rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 14px var(--accent);
}

.header-meta {
  display: grid;
  gap: 0.55rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(42, 59, 92, 0.65);
}

.nav-hint {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--text-sub);
  opacity: 0.78;
}

.header-version {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  width: max-content;
  max-width: 100%;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-sub);
  text-decoration: none;
}

.header-version:hover {
  color: var(--cyan);
}

.version-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: status-pulse 2.2s infinite;
}

.scroll-progress {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 5;
  width: 3px;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.05);
}

.scroll-progress-bar {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(180deg, var(--accent), var(--cyan));
  transform: scaleY(var(--scroll-progress, 0));
  transform-origin: top;
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 1.5rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 17, 40, 0.9), rgba(18, 32, 68, 0.96));
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr 1fr;
  gap: 2.5rem 2rem;
  width: min(calc(100% - 2rem), 1120px);
  margin-inline: auto;
}

.footer-brand .brand-link {
  color: var(--text-main);
}

.footer-slogan {
  margin: 0.45rem 0 0;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--text-sub);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 0.25rem;
  align-content: start;
}

.footer-nav-heading {
  grid-column: 1 / -1;
  margin: 0 0 0.35rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.footer-link {
  display: inline-flex;
  justify-self: start;
  padding: 0.25rem 0;
  font-size: 0.92rem;
  color: var(--text-sub);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-link:hover {
  color: var(--accent);
}

.footer-link[aria-current="page"] {
  color: var(--accent);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.2rem;
}

.footer-label {
  margin-top: 0.55rem;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.footer-value {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-main);
  word-break: break-word;
}

.footer-address {
  margin-top: 0.55rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-sub);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  width: min(calc(100% - 2rem), 1120px);
  margin: 3rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(42, 59, 92, 0.65);
  font-size: 0.8rem;
  color: var(--text-sub);
}

.footer-icp {
  font-family: var(--font-data);
  letter-spacing: 0.06em;
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

#main-content:focus {
  outline: none;
}

@keyframes status-pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.45);
  }
  50% {
    opacity: 0.55;
    box-shadow: 0 0 18px rgba(0, 229, 255, 0.15);
  }
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}

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

@media (min-width: 1024px) {
  body {
    padding-left: var(--rail-width);
  }
}

@media (max-width: 1023.98px) {
  :root {
    --header-h: 68px;
  }

  .site-header {
    position: sticky;
    top: 0;
    right: 0;
    bottom: auto;
    left: 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    width: 100%;
    height: var(--header-h);
    padding: 0.6rem 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .header-brand {
    flex: 1;
  }

  .slogan {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 1101;
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: auto;
    bottom: 0;
    left: 0;
    z-index: 1000;
    width: min(86vw, 340px);
    margin-top: 0;
    padding: 1.25rem 0.75rem 2rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    background: #0C1530;
    border-right: 1px solid var(--line);
    box-shadow: 22px 0 56px rgba(0, 0, 0, 0.4);
    visibility: hidden;
    transform: translateX(-104%);
    transition: transform 0.35s var(--ease), visibility 0.35s;
  }

  .site-nav[data-open] {
    visibility: visible;
    transform: translateX(0);
  }

  .nav-list {
    gap: 0.15rem;
  }

  .nav-link {
    padding: 0.85rem 0.9rem;
    font-size: 1rem;
  }

  .header-meta {
    display: none;
  }

  .scroll-progress {
    top: auto;
    right: auto;
    bottom: -1px;
    left: 0;
    width: auto;
    height: 3px;
  }

  .scroll-progress-bar {
    top: 0;
    right: auto;
    bottom: 0;
    left: 0;
    width: 100%;
    transform: scaleX(var(--scroll-progress, 0));
    transform-origin: left;
  }
}

@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 700px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

@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 [data-reveal],
  html.js [data-reveal].is-revealed {
    opacity: 1 !important;
    transform: none !important;
  }
}