:root {
  --c-space: #0B1B2E;
  --c-deep: #102A43;
  --c-neon: #39FF14;
  --c-orange: #FF6A00;
  --c-white: #FFFFFF;
  --c-muted: #A0B0C0;
  --c-panel: #1E2F3A;
  --c-gold: #FFD700;
  --grad-neon: linear-gradient(120deg, #39FF14, #FFD700);
  --grad-scan: linear-gradient(90deg, transparent, rgba(57,255,20,.18), transparent);
  --font-sans: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --header-h: 68px;
  --content-max: 1240px;
  --radius-cut: 12px 4px 16px 4px;
  --transition: .25s cubic-bezier(.2,.8,.2,1);
  --shadow-main: 0 12px 32px rgba(0,0,0,.35);
}

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

html {
  scroll-behavior: smooth;
  background: var(--c-space);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-white);
  background:
    radial-gradient(circle at 85% 10%, rgba(57,255,20,.07), transparent 32%),
    linear-gradient(180deg, #0B1B2E 0%, #081420 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

#main-content {
  min-height: 60vh;
  scroll-margin-top: calc(var(--header-h) + 12px);
}

a {
  color: var(--c-white);
  text-decoration: none;
  transition: color var(--transition), background var(--transition), border-color var(--transition), transform var(--transition);
}

a:hover {
  color: var(--c-neon);
}

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

::selection {
  background: var(--c-neon);
  color: var(--c-space);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: .06em;
}

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

.container,
.page-shell {
  width: min(100% - 48px, var(--content-max));
  margin-inline: auto;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

.skip-link {
  position: fixed;
  top: -64px;
  left: 16px;
  z-index: 9999;
  background: var(--c-neon);
  color: #081420;
  padding: 10px 20px;
  border-radius: 0 0 10px 10px;
  font-weight: 700;
  transition: top .3s ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(11, 27, 46, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(160,176,192,.18);
  box-shadow: 0 8px 20px rgba(0,0,0,.25);
}

.header-inner {
  width: min(100% - 32px, var(--content-max));
  margin-inline: auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  width: 40px;
  height: 40px;
  filter: drop-shadow(0 0 8px rgba(57,255,20,.4));
}

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

.brand-name {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .08em;
  color: var(--c-white);
}

.brand-tagline {
  font-size: 11px;
  color: var(--c-muted);
  letter-spacing: .12em;
  font-weight: 400;
  font-family: var(--font-mono);
}

.header-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid rgba(57,255,20,.45);
  border-radius: 999px;
  background: rgba(57,255,20,.06);
  white-space: nowrap;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-neon);
  box-shadow: 0 0 10px var(--c-neon);
  animation: status-blink 2s infinite;
}

.status-text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-neon);
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

.mobile-nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(160,176,192,.4);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--c-white);
  cursor: pointer;
  line-height: 1;
  transition: border-color var(--transition), background var(--transition);
}

.mobile-nav-toggle:hover {
  border-color: var(--c-neon);
  background: rgba(57,255,20,.08);
}

.nav-toggle-box {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 18px;
}

.nav-toggle-line {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-white);
  border-radius: 4px;
  transition: transform .28s, background .28s, opacity .28s;
}

.mobile-nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: var(--c-neon);
}

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

.mobile-nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: var(--c-neon);
}

.nav-toggle-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-muted);
}

.nav-panel {
  width: min(100% - 32px, var(--content-max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 0 12px;
}

.nav-track {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  position: relative;
}

.nav-link {
  position: relative;
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-muted);
  border-radius: 6px;
  transition: color .22s, background .22s, transform .22s;
}

.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 16px;
  background: var(--c-neon);
  border-radius: 3px;
  transition: transform .22s;
}

.nav-link:hover {
  color: var(--c-white);
  background: rgba(57,255,20,.08);
  transform: translateY(-1px);
}

.nav-link[aria-current="page"] {
  color: var(--c-neon);
  background: rgba(57,255,20,.1);
}

.nav-link[aria-current="page"]::before {
  transform: translateY(-50%) scaleY(1);
}

.nav-index {
  font-size: 11px;
  color: rgba(160,176,192,.6);
  margin-left: auto;
  letter-spacing: .14em;
  white-space: nowrap;
  border-left: 1px solid rgba(160,176,192,.2);
  padding-left: 18px;
}

.site-footer {
  background:
    linear-gradient(90deg, rgba(57,255,20,.04) 1px, transparent 1px) 0 0 / 44px 44px,
    var(--c-space);
  border-top: 1px solid rgba(57,255,20,.15);
  margin-top: 80px;
  padding: 64px 24px 24px;
}

.footer-grid {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.3fr .8fr 1fr;
  gap: 48px 56px;
}

.footer-brand-lockup {
  margin-bottom: 20px;
}

.footer-description {
  color: rgba(255,255,255,.8);
  max-width: 46ch;
  font-size: 15px;
  margin: 0 0 16px;
}

.footer-trust {
  font-size: 12px;
  color: var(--c-neon);
  border-left: 3px solid var(--c-neon);
  padding-left: 12px;
  background: rgba(57,255,20,.05);
  padding-top: 6px;
  padding-bottom: 6px;
  margin: 0 0 24px;
  max-width: 52ch;
}

.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
  color: var(--c-muted);
  max-width: 52ch;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 10px;
  align-items: baseline;
}

.footer-contact a {
  color: var(--c-white);
  word-break: break-word;
}

.footer-contact a:hover {
  color: var(--c-neon);
}

.footer-label {
  font-size: 11px;
  color: var(--c-orange);
  letter-spacing: .12em;
}

.footer-heading {
  font-size: 13px;
  color: var(--c-muted);
  font-weight: 700;
  border-bottom: 1px solid rgba(57,255,20,.24);
  padding-bottom: 10px;
  margin: 0 0 18px;
  display: inline-block;
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 4px;
}

.footer-links a {
  display: inline-block;
  padding: 6px 0;
  color: rgba(255,255,255,.8);
  font-size: 15px;
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--c-neon);
  transition: width .25s;
}

.footer-links a:hover::after {
  width: 100%;
}

.footer-legal {
  margin-bottom: 20px;
}

.footer-support {
  font-size: 13px;
  color: var(--c-muted);
  background: var(--c-panel);
  padding: 14px 16px;
  border-radius: var(--radius-cut);
  margin: 18px 0 0;
  line-height: 1.8;
}

.footer-support a {
  color: var(--c-neon);
  font-size: 14px;
}

.footer-bottom {
  width: min(100%, var(--content-max));
  margin: 48px auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  border-top: 1px solid rgba(160,176,192,.18);
  padding-top: 18px;
  font-size: 13px;
  color: var(--c-muted);
}

.footer-copyright {
  margin: 0;
  color: rgba(255,255,255,.75);
}

.footer-icp,
.footer-domain {
  margin: 0;
  font-size: 12px;
}

.footer-bottom .footer-icp {
  margin-left: auto;
}

.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px 4px 12px 4px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  transition: transform .22s, box-shadow .22s, background .22s, border .22s;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--c-neon);
  color: #081420;
  box-shadow: 0 4px 18px rgba(57,255,20,.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(57,255,20,.45);
  color: #081420;
}

.btn-outline {
  background: transparent;
  border-color: rgba(57,255,20,.6);
  color: var(--c-neon);
}

.btn-outline:hover {
  background: rgba(57,255,20,.1);
  color: var(--c-neon);
  transform: translateY(-2px);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0;
  margin: 0 0 24px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--c-muted);
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--c-orange);
}

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

.breadcrumbs a:hover {
  color: var(--c-neon);
}

.breadcrumbs [aria-current="page"] {
  color: var(--c-white);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-orange);
  font-weight: 700;
  text-transform: uppercase;
}

.section-label::before {
  content: "";
  width: 24px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-orange), transparent);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(57,255,20,.1);
  border: 1px solid rgba(57,255,20,.5);
  color: var(--c-neon);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
}

.status-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-neon);
  box-shadow: 0 0 8px var(--c-neon);
}

.score-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-mono);
  font-weight: 900;
  font-size: 28px;
  color: var(--c-neon);
  text-shadow: 0 0 18px rgba(57,255,20,.35);
  padding: 0 4px;
}

.cut-card {
  position: relative;
  background: var(--c-deep);
  border: 1px solid rgba(160,176,192,.16);
  border-radius: var(--radius-cut);
  padding: 28px;
  overflow: hidden;
  transition: transform .28s, border-color .28s, box-shadow .28s;
}

.cut-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 36px;
  height: 36px;
  background: var(--c-neon);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: .12;
  transition: opacity .28s;
}

.cut-card:hover {
  transform: translateY(-4px);
  border-color: rgba(57,255,20,.5);
  box-shadow: var(--shadow-main);
}

.cut-card:hover::after {
  opacity: .5;
}

.index-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.index-list li {
  position: relative;
  padding: 12px 0 12px 18px;
  border-bottom: 1px solid rgba(160,176,192,.14);
  font-size: 15px;
}

.index-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 10px;
  height: 2px;
  background: var(--c-neon);
  opacity: .5;
}

.index-list li:hover::before {
  opacity: 1;
  width: 16px;
}

.divider-scan {
  height: 40px;
  background: var(--grad-scan);
  background-size: 200% 100%;
  -webkit-mask: linear-gradient(90deg, transparent, #000 50%, transparent);
  mask: linear-gradient(90deg, transparent, #000 50%, transparent);
  border: none;
  margin: 32px 0;
}

.divider-scan::after {
  content: "//////";
  display: block;
  font-family: var(--font-mono);
  letter-spacing: .4em;
  font-size: 14px;
  color: rgba(57,255,20,.3);
  white-space: nowrap;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: var(--scroll-progress-width, 0%);
  z-index: 2000;
  background: linear-gradient(90deg, var(--c-neon), var(--c-orange));
  box-shadow: 0 0 12px rgba(57,255,20,.6);
  transition: width .08s linear;
  pointer-events: none;
}

.page-title-band {
  padding: 56px 0 32px;
  border-bottom: 1px solid rgba(57,255,20,.18);
  margin-bottom: 40px;
  background:
    linear-gradient(120deg, rgba(57,255,20,.06), transparent 45%),
    linear-gradient(300deg, rgba(255,106,0,.05), transparent 40%);
}

.page-title-band h1 {
  font-size: clamp(28px, 6vw, 56px);
  line-height: 1.1;
  margin: 0 0 8px;
  font-weight: 900;
  letter-spacing: .02em;
}

.page-title-band p {
  color: var(--c-muted);
  font-size: 15px;
  max-width: 62ch;
  margin: 0;
}

.img-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: var(--aspect-ratio, 16 / 9);
  background:
    linear-gradient(140deg, rgba(57,255,20,.08), transparent 55%),
    var(--c-panel);
  border: 1px solid rgba(160,176,192,.14);
  border-radius: var(--radius-cut);
  overflow: hidden;
}

.img-frame::before {
  content: "IMG";
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--c-neon);
  background: rgba(11,27,46,.7);
  padding: 4px 8px;
  border-radius: 4px;
  z-index: 1;
}

.img-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-scan);
  background-size: 200% 100%;
  animation: scanmove 3s linear infinite;
  pointer-events: none;
}

@keyframes scanmove {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.value-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-muted);
  letter-spacing: .06em;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-group a,
.tag-group button {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(160,176,192,.25);
  background: transparent;
  color: var(--c-muted);
  cursor: pointer;
}

.tag-group a:hover,
.tag-group button:hover {
  border-color: var(--c-neon);
  color: var(--c-neon);
}

.tag-group [aria-current="page"],
.tag-group [aria-selected="true"],
.tag-group .is-active {
  background: var(--c-neon);
  color: #081420;
  border-color: var(--c-neon);
}

.to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: 12px 4px 14px 4px;
  background: var(--c-deep);
  border: 1px solid rgba(57,255,20,.6);
  color: var(--c-neon);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .28s, transform .28s, visibility .28s;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  background: var(--c-neon);
  color: #081420;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 60px;
  }

  .site-header {
    position: sticky;
    top: 0;
  }

  .header-inner {
    height: var(--header-h);
  }

  .brand-tagline {
    display: none;
  }

  .brand-name {
    font-size: 18px;
  }

  .header-status {
    padding: 4px 10px;
  }

  .status-text {
    font-size: 10px;
  }

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

  .nav-panel {
    display: grid;
    width: auto;
    grid-template-rows: 0fr;
    margin: 0;
    padding: 0;
    background: rgba(11,27,46,.98);
    transition: grid-template-rows .3s ease;
    border-top: 0 solid rgba(57,255,20,.15);
    overflow: hidden;
  }

  .nav-track {
    min-height: 0;
    overflow: hidden;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-panel[data-open] {
    grid-template-rows: 1fr;
    border-top-width: 1px;
    box-shadow: 0 22px 32px rgba(0,0,0,.35);
  }

  .nav-link {
    display: block;
    padding: 16px 16px;
    border-bottom: 1px solid rgba(160,176,192,.1);
    font-size: 14px;
    border-radius: 0;
  }

  .nav-link::before {
    top: auto;
    bottom: 0;
    transform: none;
    height: 3px;
    width: 24px;
    left: 16px;
  }

  .nav-link[aria-current="page"]::before {
    transform: none;
  }

  .nav-link:hover {
    background: rgba(57,255,20,.07);
  }

  .nav-index {
    display: none;
  }

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

  .footer-icp {
    margin: 0;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-title-band {
    padding: 32px 0 24px;
  }
}

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

  .status-dot {
    animation: none;
  }

  .img-frame::after {
    animation: none;
    background: rgba(57,255,20,.06);
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}