:root {
  --bg-primary: #0B0F1A;
  --bg-secondary: #141B2D;
  --bg-tertiary: #1A2337;
  --accent-orange: #FF6B35;
  --accent-green: #00FF9F;
  --accent-blue: #4A6BE8;
  --text-primary: #E8EDF5;
  --text-secondary: #9AA5B8;
  --text-muted: #6B7A93;
  --border-color: #2A3550;
  --danger: #FF5A5F;
  --focus: #FFD166;
  --rail-width: 280px;
  --header-height: 68px;
  --content-max: 1280px;
  --content-max-wide: 1440px;
  --content-max-narrow: 720px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --dur: 280ms;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow-green: 0 0 12px rgba(0, 255, 159, 0.15);
}

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

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

body {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 60% 40% at 80% 20%, rgba(74, 107, 232, 0.06), transparent),
    repeating-linear-gradient(135deg, rgba(42, 53, 80, 0.08) 0, rgba(42, 53, 80, 0.08) 1px, transparent 1px, transparent 56px),
    var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border: 2px solid var(--bg-primary);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: #3A4565;
}

::selection {
  background: rgba(0, 255, 159, 0.25);
  color: var(--text-primary);
}

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

h1, h2, h3, h4 {
  font-family: 'DIN Condensed', 'Oswald', 'Arial Narrow', 'Noto Sans SC', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.75rem;
  transform: skewX(-8deg);
  transform-origin: left bottom;
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 2rem);
}

h4 {
  font-size: 1.05rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-blue);
  text-underline-offset: 4px;
  transition: color var(--dur) var(--ease);
}

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

ul, ol {
  list-style-position: inside;
}

button {
  font-family: inherit;
}

.skip-link {
  position: fixed;
  top: -48px;
  left: 16px;
  z-index: 1050;
  background: var(--focus);
  color: #0B0F1A;
  padding: 10px 18px;
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: top var(--dur) var(--ease);
}

.skip-link:focus {
  top: 0;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-blue), var(--accent-orange));
  z-index: 1100;
  pointer-events: none;
}

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

.l-rail {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--rail-width);
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 20px 24px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.brand__link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  text-decoration: none;
  min-width: 0;
}

.brand__link:hover {
  color: var(--text-primary);
}

.brand__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent-orange), #E5531E);
  clip-path: polygon(18% 0, 100% 0, 82% 100%, 0 100%);
  color: #fff;
  font-family: 'Noto Sans SC', 'Arial Black', sans-serif;
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
}

.brand__text {
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  transform: skewX(-8deg);
  white-space: nowrap;
}

.brand__suffix {
  color: var(--accent-green);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  cursor: pointer;
  color: var(--text-primary);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.nav-toggle:hover {
  border-color: var(--accent-green);
  background: rgba(0, 255, 159, 0.04);
}

.nav-toggle__bars {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--accent-green);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__label {
  font-family: 'Oswald', 'Noto Sans SC', sans-serif;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

.nav-toggle__label-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.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: translateY(-6px) rotate(-45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__label-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__label-close {
  display: inline;
}

.rail-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.nav {
  flex: 1;
  overflow-y: auto;
  padding: 20px 0;
}

.nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 12px;
}

.nav__link {
  position: relative;
  display: flex;
  align-items: center;
  padding: 10px 16px 10px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  border-left: 2px solid transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.nav__link:hover {
  color: var(--text-primary);
  background: var(--bg-primary);
  border-left-color: var(--accent-orange);
  padding-left: 26px;
}

.nav__link[aria-current="page"] {
  color: var(--text-primary);
  border-left-color: var(--accent-green);
  background: linear-gradient(90deg, rgba(0, 255, 159, 0.06), transparent);
}

.nav__link[aria-current="page"]::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  transform: translateY(-50%);
  box-shadow: 0 0 8px var(--accent-green);
}

.rail-status {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 20px 20px;
  border-top: 1px solid var(--border-color);
  flex-shrink: 0;
}

.rail-status__row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rail-status__text {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot--live {
  background: var(--accent-green);
  animation: pulse-live 2s var(--ease) infinite;
}

.status-dot--sync {
  background: var(--accent-orange);
  animation: pulse-sync 3s var(--ease) infinite;
}

@keyframes pulse-live {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 159, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(0, 255, 159, 0); }
}

@keyframes pulse-sync {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(255, 107, 53, 0); }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transform: skewX(-8deg);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.btn__content {
  display: inline-block;
  transform: skewX(8deg);
}

.btn--primary {
  background: var(--accent-orange);
  color: #0B0F1A;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.25);
}

.btn--primary:hover {
  background: #FF8255;
  color: #0B0F1A;
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
  transform: skewX(-8deg) translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn--ghost:hover {
  color: var(--accent-green);
  border-color: rgba(0, 255, 159, 0.4);
  background: rgba(0, 255, 159, 0.04);
}

.btn--small {
  padding: 8px 16px;
  font-size: 0.82rem;
}

.btn--block {
  display: flex;
  width: 100%;
  justify-content: center;
}

.l-main {
  margin-left: var(--rail-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  background: linear-gradient(180deg, rgba(20, 27, 45, 0.35) 0%, transparent 260px);
}

.l-main > main {
  flex: 1;
}

.site-footer {
  margin-top: auto;
  position: relative;
  background: var(--bg-secondary);
  padding-top: clamp(40px, 6vw, 72px);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 159, 0.2) 30%, rgba(255, 107, 53, 0.2) 70%, transparent);
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
}

.container--wide {
  max-width: var(--content-max-wide);
}

.container--narrow {
  max-width: var(--content-max-narrow);
}

.section {
  padding: clamp(48px, 8vw, 96px) 0;
  position: relative;
}

.section + .section {
  border-top: 1px solid var(--border-color);
}

.section--compact {
  padding: clamp(24px, 4vw, 48px) 0;
}

.page-content {
  padding: clamp(32px, 5vw, 72px) 0 clamp(48px, 8vw, 96px);
}

.page-title {
  font-size: clamp(3rem, 8vw, 6rem);
  margin-bottom: 16px;
}

.page-intro {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin-bottom: 32px;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 159, 0.35);
  box-shadow: var(--shadow-md), var(--shadow-glow-green);
}

.card--skew {
  transform: skewX(-6deg);
}

.card--skew:hover {
  transform: skewX(-6deg) translateY(-4px);
}

.card--skew > * {
  transform: skewX(6deg);
}

.card__title {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.card__text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 100px;
  border: 1px solid rgba(0, 255, 159, 0.3);
  background: rgba(0, 255, 159, 0.06);
  color: var(--accent-green);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.chip--orange {
  border-color: rgba(255, 107, 53, 0.35);
  background: rgba(255, 107, 53, 0.06);
  color: var(--accent-orange);
}

.chip--blue {
  border-color: rgba(74, 107, 232, 0.4);
  background: rgba(74, 107, 232, 0.08);
  color: #9AA8FF;
}

.img-frame {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.img-frame--portrait {
  aspect-ratio: 3 / 4;
}

.img-frame--square {
  aspect-ratio: 1 / 1;
}

.img-frame--skew {
  border-radius: 0;
  clip-path: polygon(2% 0, 100% 0, 98% 100%, 0 100%);
}

.img-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, rgba(74, 107, 232, 0.05) 0 1px, transparent 1px 32px),
    linear-gradient(135deg, transparent 60%, rgba(255, 107, 53, 0.05));
  pointer-events: none;
}

.img-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(20, 27, 45, 0.4), transparent 60%);
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.breadcrumb__link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.breadcrumb__link:hover {
  color: var(--accent-green);
}

.breadcrumb__sep {
  color: var(--text-muted);
  user-select: none;
}

.breadcrumb__current {
  color: var(--text-primary);
  font-weight: 600;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand__name {
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  transform: skewX(-8deg);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

.footer-heading {
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-contact__line {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  word-break: break-all;
}

.footer-contact__note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.footer-links__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
  margin: 0;
}

.footer-links__list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--dur) var(--ease);
}

.footer-links__list a:hover {
  color: var(--accent-green);
}

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 0 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-icp {
  font-family: 'Roboto Mono', 'Courier New', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.footer-version {
  font-family: 'Roboto Mono', 'Courier New', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.table th {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-family: 'Oswald', 'Arial Black', 'Noto Sans SC', sans-serif;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

.table tbody tr:last-child td {
  border-bottom: none;
}

.table tbody tr:hover td {
  background: rgba(74, 107, 232, 0.05);
}

.num {
  font-family: 'Roboto Mono', 'Courier New', monospace;
  font-variant-numeric: tabular-nums;
}

@media (max-width: 1023.98px) {
  :root {
    --rail-width: 240px;
  }

  .container {
    padding: 0 24px;
  }

  .section {
    padding: 56px 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

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

@media (max-width: 767.98px) {
  :root {
    --rail-width: 0;
    --header-height: 64px;
  }

  .l-rail {
    width: 100%;
    height: auto;
    min-height: var(--header-height);
    background: var(--bg-primary);
    border-right: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  }

  .l-rail[data-open] {
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.45);
  }

  .brand {
    width: 100%;
    height: var(--header-height);
    padding: 0 16px;
    border-bottom: 1px solid var(--border-color);
  }

  .brand__mark {
    width: 32px;
    height: 32px;
    font-size: 15px;
    box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
  }

  .brand__text {
    font-size: 1.05rem;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .rail-body {
    flex: none;
    min-height: 0;
    max-height: 0;
    overflow: hidden;
    background: var(--bg-secondary);
    transition: max-height 0.4s var(--ease);
  }

  .l-rail[data-open] .rail-body {
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }

  .nav {
    flex: none;
    overflow: visible;
    padding: 8px 0;
  }

  .nav__list {
    padding: 0 12px;
    gap: 0;
  }

  .nav__link {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(42, 53, 80, 0.4);
    font-size: 0.95rem;
  }

  .nav__link:hover {
    padding-left: 18px;
    background: rgba(11, 15, 26, 0.5);
  }

  .nav__link[aria-current="page"] {
    background: rgba(0, 255, 159, 0.04);
  }

  .nav__link[aria-current="page"]::after {
    right: 16px;
  }

  .rail-status {
    padding: 16px 18px 20px;
  }

  .l-main {
    margin-left: 0;
    padding-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
    background: none;
  }

  .site-footer {
    padding-top: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 24px;
  }

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

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

  .container {
    padding: 0 20px;
  }

  .section {
    padding: 40px 0;
  }

  .page-content {
    padding-top: 24px;
  }

  .skip-link {
    left: 8px;
  }
}

@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;
  }
}