:root {
  --bg-deep: #0A1C3E;
  --bg-panel: #122A52;
  --bg-raised: #16325F;
  --orange: #FF6B00;
  --purple: #9B59B6;
  --ice: #3D78C2;
  --pale: #A8C5E8;
  --white: #F2F6FC;
  --gold: #D4A017;
  --danger: #B03060;
  --glass: rgba(255, 255, 255, 0.05);
  --line: rgba(168, 197, 232, 0.18);
  --line-strong: rgba(168, 197, 232, 0.32);
  --shadow-lg: 0 18px 44px rgba(3, 10, 28, 0.45);
  --shadow-md: 0 10px 28px rgba(3, 10, 28, 0.35);
  --radius-lg: 1.25rem;
  --radius-md: 0.875rem;
  --radius-sm: 0.5rem;
  --rail-width: 17.25rem;
  --header-h: 4.5rem;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Helvetica, Arial, sans-serif;
  --font-display: "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Roboto Mono", Consolas, "Liberation Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  min-width: 320px;
  min-height: 100vh;
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(circle at 78% 12%, rgba(61, 120, 194, 0.32), transparent 30rem),
    radial-gradient(circle at 16% 78%, rgba(155, 89, 182, 0.22), transparent 34rem),
    radial-gradient(circle at 88% 86%, rgba(255, 107, 0, 0.14), transparent 28rem);
  background-attachment: fixed;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote {
  margin: 0;
}

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

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

a {
  color: var(--ice);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

::selection {
  background: var(--orange);
  color: #0A1C3E;
}

@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;
  }
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 300;
  padding: 0.75rem 1.1rem;
  background: var(--orange);
  color: #0A1C3E;
  font-weight: 800;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(-250%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 120;
  display: flex;
  flex-direction: column;
  width: var(--rail-width);
  padding: 1.5rem 1.25rem 1.5rem;
  background: linear-gradient(180deg, #0D2148 0%, #081534 100%);
  border-right: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
  background:
    linear-gradient(rgba(168, 197, 232, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 197, 232, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
}

.site-header::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 5;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--purple));
}

.rail-progress {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  width: 3px;
  overflow: hidden;
  background: rgba(168, 197, 232, 0.12);
}

.rail-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, var(--orange), var(--purple));
  transform: scaleY(var(--progress, 0));
  transform-origin: 50% 0;
  will-change: transform;
}

.brand {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.875rem;
  background: linear-gradient(135deg, rgba(255, 107, 0, 0.95), rgba(155, 89, 182, 0.95));
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  box-shadow: 0 8px 22px rgba(255, 107, 0, 0.28);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: -4px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: inherit;
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--white);
}

.brand-name small {
  margin-left: 0.15rem;
  color: var(--orange);
  font-size: 1rem;
}

.brand-sub {
  margin-top: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pale);
}

.rail-nav {
  position: relative;
  z-index: 1;
  flex: 1 1 auto;
  min-height: 0;
  margin-top: 1.25rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(168, 197, 232, 0.24) transparent;
}

.rail-nav::-webkit-scrollbar {
  width: 4px;
}

.rail-nav::-webkit-scrollbar-thumb {
  background: rgba(168, 197, 232, 0.24);
  border-radius: 999px;
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  color: var(--pale);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.24s ease, color 0.24s ease, transform 0.24s ease;
}

.nav-link:hover {
  background: rgba(61, 120, 194, 0.14);
  color: var(--white);
  transform: translateX(4px);
}

.nav-link[aria-current="page"] {
  background: linear-gradient(90deg, rgba(255, 107, 0, 0.16), rgba(155, 89, 182, 0.08));
  color: var(--white);
}

.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20%;
  bottom: 20%;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--orange), var(--purple));
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--purple);
  width: 1.5rem;
  flex: none;
}

.nav-link[aria-current="page"] .nav-index {
  color: var(--orange);
}

.nav-label {
  color: inherit;
}

.rail-action {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.rail-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1rem;
  padding: 0.7rem 0.9rem;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.status-dot {
  position: relative;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.5);
  animation: data-pulse 2s infinite;
}

@keyframes data-pulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0.5); }
  70% { box-shadow: 0 0 0 0.5rem rgba(255, 107, 0, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 107, 0, 0); }
}

.status-text {
  font-size: 0.75rem;
  color: var(--pale);
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
}

.nav-toggle-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease, background 0.25s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: inherit;
  transition: top 0.25s ease, transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle-icon::before {
  top: -0.4rem;
}

.nav-toggle-icon::after {
  top: 0.4rem;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  transform: translate(-50%, -50%) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-90deg);
}

.nav-backdrop {
  position: relative;
  z-index: 1;
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.9rem;
  line-height: 1;
  text-align: center;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

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

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange), #E05A00);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 107, 0, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FF7E22, #E96600);
  color: #fff;
  box-shadow: 0 14px 30px rgba(255, 107, 0, 0.32);
}

.btn-outline {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--pale);
}

.btn-outline:hover {
  background: rgba(61, 120, 194, 0.14);
  border-color: var(--ice);
  color: #fff;
}

.btn-block {
  width: 100%;
}

.page-main {
  margin-left: var(--rail-width);
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.site-footer {
  margin-left: var(--rail-width);
  position: relative;
  z-index: 1;
  padding: 4.5rem 2rem 1.75rem;
  background: linear-gradient(180deg, #081534 0%, #050F24 100%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), var(--purple) 45%, transparent 85%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  max-width: 90rem;
  margin: 0 auto;
}

.footer-grid > * {
  min-width: 0;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--white);
}

.footer-logo span {
  color: var(--orange);
}

.footer-statement {
  margin-top: 1rem;
  max-width: 34rem;
  color: var(--pale);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-heading {
  margin-bottom: 1rem;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
}

.footer-links {
  display: grid;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--pale);
  font-size: 0.9rem;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a:hover {
  color: var(--orange);
  padding-left: 0.25rem;
}

.footer-contact-line {
  margin-bottom: 0.5rem;
  color: var(--pale);
  font-size: 0.9rem;
}

.footer-contact-line a {
  color: var(--pale);
}

.footer-contact-line a:hover {
  color: var(--orange);
}

.footer-note {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(168, 197, 232, 0.12);
  color: var(--pale);
  font-size: 0.78rem;
  line-height: 1.6;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  max-width: 90rem;
  margin: 3rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(168, 197, 232, 0.12);
  color: var(--pale);
  font-size: 0.8rem;
}

.footer-copy {
  margin-right: auto;
}

.footer-icp {
  font-family: var(--font-mono);
  color: var(--ice);
}

.footer-trust {
  margin-left: auto;
  color: var(--purple);
}

.page-wrap {
  width: min(88rem, calc(100% - 3rem));
  margin-inline: auto;
}

.section-block {
  padding-block: clamp(3rem, 6vw, 6rem);
}

.section-intro {
  max-width: 56rem;
  margin-bottom: 2.5rem;
}

.section-kicker {
  display: block;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3.8rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.05em;
  color: var(--white);
  text-wrap: balance;
}

.section-copy {
  max-width: 60ch;
  margin-top: 1rem;
  color: var(--pale);
  font-size: 1rem;
  line-height: 1.75;
}

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

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
}

.grid--asymmetric {
  grid-template-columns: minmax(0, 5fr) minmax(0, 3fr);
}

.panel {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: rgba(18, 42, 82, 0.72);
  box-shadow: var(--shadow-md);
}

.panel--glass {
  background: rgba(18, 42, 82, 0.5);
  backdrop-filter: blur(14px);
}

.panel--solid {
  background: linear-gradient(160deg, #122A52, #0C1F3E);
}

.panel--glow {
  border-color: rgba(255, 107, 0, 0.4);
  box-shadow: 0 0 0 1px rgba(255, 107, 0, 0.14), 0 18px 44px rgba(3, 10, 28, 0.45);
}

.panel-pad {
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.stat-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(145deg, rgba(18, 42, 82, 0.84), rgba(10, 28, 62, 0.66));
}

.stat-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pale);
}

.stat-value {
  display: block;
  margin-top: 0.4rem;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
}

.stat-card--orange .stat-value {
  color: var(--orange);
}

.stat-card--purple .stat-value {
  color: var(--purple);
}

.stat-card--gold .stat-value {
  color: var(--gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(61, 120, 194, 0.16);
  color: var(--pale);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.tag--orange {
  background: rgba(255, 107, 0, 0.15);
  border-color: rgba(255, 107, 0, 0.35);
  color: #FFB380;
}

.tag--purple {
  background: rgba(155, 89, 182, 0.16);
  border-color: rgba(155, 89, 182, 0.36);
  color: #DDB5EE;
}

.tag--ice {
  background: rgba(61, 120, 194, 0.16);
  border-color: rgba(61, 120, 194, 0.36);
  color: var(--pale);
}

.tag--gold {
  background: rgba(212, 160, 23, 0.16);
  border-color: rgba(212, 160, 23, 0.36);
  color: #F4D47B;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(18, 42, 82, 0.65);
  box-shadow: var(--shadow-md);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.85rem 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(168, 197, 232, 0.12);
}

.data-table th {
  background: rgba(10, 28, 62, 0.7);
  color: var(--pale);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.data-table td {
  color: var(--pale);
}

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

.data-table tbody tr {
  transition: background 0.2s ease;
}

.data-table tbody tr:hover {
  background: rgba(255, 107, 0, 0.07);
}

.data-table .num {
  font-family: var(--font-mono);
  color: var(--white);
}

.data-table .is-lead {
  color: var(--gold);
}

.media-frame {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(61, 120, 194, 0.18), rgba(155, 89, 182, 0.14));
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 20%, rgba(255, 255, 255, 0.08), transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.8s ease;
}

.media-frame:hover::after {
  transform: translateX(100%);
}

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

.media-frame__placeholder {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pale);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--pale);
}

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

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

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

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

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

@media (prefers-reduced-motion: no-preference) {
  html.js [data-reveal]:not(.is-revealed) {
    opacity: 0;
    transform: translateY(18px);
  }

  html.js [data-reveal] {
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

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

@media (max-width: 980px) {
  .site-header {
    top: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: var(--header-h);
    flex-direction: row;
    align-items: center;
    padding: 0 1rem;
    background: rgba(9, 22, 46, 0.96);
    backdrop-filter: blur(18px);
    border-right: 0;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(4, 10, 25, 0.35);
  }

  .site-header::after {
    top: auto;
    height: 2px;
  }

  .brand {
    border-bottom: 0;
    padding: 0.25rem 0;
    margin-right: auto;
  }

  .brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    font-size: 0.9rem;
  }

  .brand-name {
    font-size: 1.28rem;
  }

  .brand-sub {
    display: none;
  }

  .rail-nav {
    position: fixed;
    top: var(--header-h);
    bottom: 0;
    left: 0;
    z-index: 130;
    width: min(20rem, 88vw);
    margin: 0;
    padding: 1.25rem;
    visibility: hidden;
    background: linear-gradient(180deg, #0D2148 0%, #081534 100%);
    border-right: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateX(-105%);
    transition: transform 0.32s ease, visibility 0.32s ease;
  }

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

  .nav-backdrop {
    display: block;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 125;
    visibility: hidden;
    opacity: 0;
    background: rgba(3, 8, 20, 0.72);
    cursor: pointer;
    transition: opacity 0.28s ease, visibility 0.28s ease;
  }

  .rail-nav[data-open] + .nav-backdrop {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: inline-flex;
    position: relative;
    z-index: 140;
    align-items: center;
    justify-content: center;
    width: 2.625rem;
    height: 2.625rem;
    border: 1px solid rgba(168, 197, 232, 0.25);
    border-radius: 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    color: var(--white);
  }

  .rail-status {
    display: none;
  }

  .page-main,
  .site-footer {
    margin-left: 0;
  }

  .page-main {
    padding-top: var(--header-h);
  }

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

@media (max-width: 720px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

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

  .footer-trust {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

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