:root {
  --color-bg: #0A1628;
  --color-panel: #10233D;
  --color-card: #162A45;
  --color-green: #39FF88;
  --color-orange: #FF7A1A;
  --color-text: #F5F7FA;
  --color-muted: #B8C3D4;
  --color-sub: #60789A;
  --color-line: #22344F;
  --font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-data: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", Consolas, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --container: 1200px;
}

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

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

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(34, 52, 79, .18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 52, 79, .18) 1px, transparent 1px);
  background-size: 56px 56px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-green);
  text-decoration: none;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.15;
}

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

::selection {
  background: var(--color-green);
  color: var(--color-bg);
}

#main-content {
  min-height: 60vh;
  scroll-margin-top: 88px;
}

.container {
  width: min(var(--container), 92vw);
  margin-inline: auto;
}

.container-narrow {
  width: min(760px, 92vw);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 0;
  left: -9999px;
  z-index: 1000;
  padding: .75rem 1rem;
  background: var(--color-green);
  color: var(--color-bg);
  font-weight: 700;
  border-radius: 0 0 6px 0;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 22, 40, .92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-line);
}

.site-header__bar {
  background: linear-gradient(90deg, rgba(16, 35, 61, .45), transparent 70%);
}

.site-header__bar-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  width: min(var(--container), 92vw);
  min-height: 72px;
  margin-inline: auto;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  width: fit-content;
  color: var(--color-text);
}

.site-header__brand:hover {
  color: var(--color-text);
}

.site-header__brand-mark {
  position: relative;
  width: 36px;
  height: 36px;
  flex: none;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(22, 42, 69, .8), rgba(10, 22, 40, .4));
}

.site-header__brand-mark::before,
.site-header__brand-mark::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.site-header__brand-mark::before {
  top: 6px;
  left: 7px;
  background: var(--color-green);
  transform: rotate(12deg);
}

.site-header__brand-mark::after {
  right: 6px;
  bottom: 6px;
  background: var(--color-orange);
  transform: rotate(45deg);
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-header__brand-name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.02rem;
  letter-spacing: .02em;
  color: var(--color-text);
  white-space: nowrap;
}

.site-header__brand-sub {
  font-family: var(--font-head);
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--color-sub);
  text-transform: uppercase;
}

.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  min-width: 0;
  justify-self: center;
}

.site-header__prefix {
  flex: none;
  font-family: var(--font-head);
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--color-sub);
  text-transform: uppercase;
  border-left: 2px solid var(--color-green);
  padding-left: .55rem;
  margin-right: .25rem;
}

.site-header__links {
  display: flex;
  align-items: center;
  gap: .15rem;
}

.site-header__link {
  position: relative;
  display: inline-block;
  padding: .42rem .62rem;
  border-radius: 4px;
  font-family: var(--font-head);
  font-size: .84rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--color-muted);
  white-space: nowrap;
  transition: background .2s var(--ease), color .2s var(--ease), opacity .2s;
}

.site-header__link:hover {
  background: rgba(34, 52, 79, .5);
  color: var(--color-text);
}

.site-header__link[aria-current="page"] {
  background: rgba(57, 255, 136, .08);
  color: var(--color-green);
}

.site-header__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: .62rem;
  bottom: 0;
  left: .62rem;
  height: 2px;
  background: var(--color-green);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  justify-self: end;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .85rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-card);
  font-family: var(--font-head);
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-text);
  white-space: nowrap;
  transition: border-color .2s, color .2s;
}

.site-header__status:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

.site-header__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-green);
  animation: status-pulse 2s ease-out infinite;
}

.site-header__toggle {
  display: none;
  align-items: center;
  gap: .5rem;
  padding: .5rem .8rem;
  border: 1px solid var(--color-line);
  border-radius: 5px;
  background: var(--color-card);
  font-family: var(--font-head);
  font-size: .78rem;
  font-weight: 700;
  color: var(--color-text);
  transition: border-color .2s, color .2s;
}

.site-header__toggle:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

.site-header__toggle-text {
  line-height: 1;
}

.site-header__toggle-icon {
  position: relative;
  width: 18px;
  height: 14px;
}

.site-header__toggle-icon span {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-text);
  transition: top .2s var(--ease), transform .2s var(--ease), opacity .2s;
}

.site-header__toggle-icon span:first-child {
  top: 0;
}

.site-header__toggle-icon span:last-child {
  bottom: 0;
}

.site-header[data-nav-open] .site-header__toggle-icon span:first-child {
  top: 6px;
  transform: rotate(45deg);
}

.site-header[data-nav-open] .site-header__toggle-icon span:last-child {
  bottom: 6px;
  transform: rotate(-45deg);
}

.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
  border-top: 1px solid var(--color-line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(57, 255, 136, .13), transparent 70%);
  pointer-events: none;
}

.site-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.15fr;
  gap: 2.2rem;
  padding: 3.5rem 0 2.5rem;
}

.site-footer__brand {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  margin-bottom: 1rem;
}

.site-footer__logo {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.22rem;
  letter-spacing: .02em;
  color: var(--color-text);
}

.site-footer__logo-sub {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--color-orange);
  border: 1px solid rgba(255, 122, 26, .35);
  border-radius: 3px;
  padding: .1rem .45rem;
  text-transform: uppercase;
}

.site-footer__about {
  max-width: 36ch;
  color: var(--color-muted);
  font-size: .92rem;
}

.site-footer__trust {
  margin-top: 1.25rem;
  padding: .5rem .9rem;
  border-left: 3px solid var(--color-green);
  background: linear-gradient(90deg, rgba(57, 255, 136, .05), transparent);
  font-size: .84rem;
  color: var(--color-sub);
}

.site-footer__heading {
  margin-bottom: .9rem;
  padding-bottom: .45rem;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-head);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--color-text);
  text-transform: uppercase;
}

.site-footer__links li + li {
  margin-top: .3rem;
}

.site-footer__links a {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .88rem;
  color: var(--color-muted);
  transition: color .2s, transform .2s;
}

.site-footer__links a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-green);
  transform: scale(0);
  transition: transform .2s;
}

.site-footer__links a:hover {
  color: var(--color-text);
}

.site-footer__links a:hover::before {
  transform: scale(1);
}

.site-footer__contact-col {
  align-self: start;
  padding-left: 1rem;
  border-left: 2px solid var(--color-green);
  background: rgba(22, 42, 69, .28);
}

.site-footer__meta {
  display: grid;
  gap: .35rem;
  font-size: .84rem;
  color: var(--color-muted);
}

.site-footer__meta a {
  color: var(--color-green);
}

.site-footer__note {
  margin-top: 1rem;
  padding-top: .75rem;
  border-top: 1px dashed var(--color-line);
  font-size: .78rem;
  color: var(--color-sub);
}

.site-footer__bottom {
  position: relative;
  background: rgba(16, 35, 61, .5);
  border-top: 1px solid var(--color-line);
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  padding: 1rem 0;
  font-size: .76rem;
  color: var(--color-sub);
}

.site-footer__bottom-inner span:last-child {
  font-family: var(--font-data);
  color: var(--color-muted);
}

.section {
  padding: 4rem 0;
}

.section--tight {
  padding: 2.5rem 0;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .18em;
  color: var(--color-green);
  text-transform: uppercase;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-green);
}

.section-title {
  margin-top: .35rem;
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 900;
  line-height: 1.08;
  color: var(--color-text);
  letter-spacing: .01em;
}

.section-sub {
  margin-top: .35rem;
  color: var(--color-sub);
}

.prose {
  max-width: 72ch;
}

.prose h2 {
  margin: 2rem 0 .6rem;
  font-family: var(--font-head);
  font-weight: 900;
  color: var(--color-text);
}

.prose p {
  margin-bottom: 1rem;
  color: var(--color-muted);
}

.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));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  background: var(--color-panel);
}

.data-card {
  padding: 1.25rem;
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-green);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(22, 42, 69, .85), rgba(16, 35, 61, .5));
}

.data-card--orange {
  border-left-color: var(--color-orange);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .2rem .55rem;
  border: 1px solid var(--color-line);
  border-radius: 3px;
  background: var(--color-card);
  font-family: var(--font-head);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--color-muted);
}

.tag--live {
  border-color: rgba(57, 255, 136, .4);
  color: var(--color-green);
}

.tag--hot {
  border-color: rgba(255, 122, 26, .4);
  color: var(--color-orange);
}

.stat {
  font-family: var(--font-data);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-green);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .72rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 5px;
  font-family: var(--font-head);
  font-size: .88rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s, transform .2s;
}

.btn--primary {
  background: var(--color-green);
  color: var(--color-bg);
}

.btn--primary:hover {
  background: #5cffa4;
  color: var(--color-bg);
  transform: translateY(-1px);
}

.btn--orange {
  background: var(--color-orange);
  color: var(--color-bg);
}

.btn--orange:hover {
  background: #ff9244;
  color: var(--color-bg);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-line);
  color: var(--color-text);
}

.btn--ghost:hover {
  border-color: var(--color-green);
  color: var(--color-green);
  transform: translateY(-1px);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .8rem;
  padding: .9rem 0;
  font-size: .78rem;
  color: var(--color-sub);
}

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

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

.breadcrumb__sep {
  opacity: .5;
}

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

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

.data-table th {
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--color-line);
  font-family: var(--font-head);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--color-sub);
  text-align: left;
  text-transform: uppercase;
}

.data-table td {
  padding: .7rem .75rem;
  border-bottom: 1px solid rgba(34, 52, 79, .5);
  font-size: .9rem;
  color: var(--color-muted);
}

.data-table tr:hover td {
  background: rgba(57, 255, 136, .04);
  color: var(--color-text);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .28s ease-out var(--reveal-delay, 0s), transform .28s ease-out var(--reveal-delay, 0s);
}

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

@keyframes status-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(57, 255, 136, .45);
  }
  70% {
    box-shadow: 0 0 0 7px rgba(57, 255, 136, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(57, 255, 136, 0);
  }
}

@media (max-width: 1100px) {
  .site-header__status {
    display: none;
  }

  .site-header__nav {
    justify-content: flex-start;
  }
}

@media (max-width: 1000px) {
  .site-header__prefix {
    display: none;
  }

  .site-header__link {
    padding: .38rem .46rem;
    font-size: .78rem;
  }

  .site-header__bar-inner {
    gap: .6rem;
  }
}

@media (max-width: 900px) {
  .site-header__bar-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
    min-height: 64px;
  }

  .site-header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: .25rem;
    padding: 1rem 4vw 1.25rem;
    background: rgba(10, 22, 40, .98);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 20px 40px rgba(0, 0, 0, .35);
  }

  .site-header__nav[data-open] {
    display: flex;
  }

  .site-header__prefix {
    display: block;
    padding: 0 .5rem .3rem;
    border-left: 2px solid var(--color-green);
    color: var(--color-sub);
  }

  .site-header__links {
    flex-direction: column;
    align-items: stretch;
    gap: .15rem;
  }

  .site-header__link {
    padding: .7rem .5rem;
    border-bottom: 1px solid rgba(34, 52, 79, .5);
    font-size: .95rem;
  }

  .site-header__link[aria-current="page"]::after {
    right: auto;
    left: .5rem;
    width: 18px;
  }

  .site-header__toggle {
    display: inline-flex;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__intro {
    grid-column: 1 / -1;
  }

  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .site-header__bar-inner {
    min-height: 60px;
  }

  .site-header__brand-name {
    font-size: .95rem;
  }

  .site-header__brand-sub {
    display: none;
  }

  .site-header__toggle-text {
    display: none;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    padding: 2.5rem 0 1.5rem;
  }

  .site-footer__intro {
    grid-column: auto;
  }

  .site-footer__contact-col {
    padding-left: .8rem;
  }

  .site-footer__bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 2.5rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

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