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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--color-void);
  background-image:
    radial-gradient(rgba(57, 255, 20, .05) 1px, transparent 1px),
    radial-gradient(rgba(255, 67, 10, .04) 1px, transparent 1px);
  background-size: 28px 28px, 46px 46px;
  color: var(--color-gray);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

:focus-visible {
  outline: 3px solid var(--color-neon);
  outline-offset: 3px;
  border-radius: 6px;
}

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

:root {
  --color-void: #0A0E14;
  --color-panel: #1A1E26;
  --color-neon: #39FF14;
  --color-flame: #FF430A;
  --color-white: #FFFFFF;
  --color-gray: #B0B6C0;
  --color-muted: #6B7280;
  --color-neon-soft: rgba(57, 255, 20, .25);
  --color-flame-soft: rgba(255, 67, 10, .18);
  --grad-neon: linear-gradient(135deg, #00804B 0%, #39FF14 100%);
  --grad-flame: linear-gradient(135deg, #B23A00 0%, #FF430A 100%);
  --font-heading: "Noto Sans SC", "Inter", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Inter", "Arial", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", "Menlo", Consolas, monospace;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --rail-width: 272px;
  --header-h: 64px;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --speed: .3s;
  --shadow: 0 16px 40px rgba(0, 0, 0, .45);
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-white);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(34px, 5vw, 60px); }
h2 { font-size: clamp(26px, 3.5vw, 40px); }
h3 { font-size: clamp(18px, 2.2vw, 24px); }

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--color-neon);
  color: var(--color-void);
  font-weight: 800;
  border-radius: var(--radius-pill);
  transform: translateY(-220%);
  transition: transform var(--speed) var(--ease);
}

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

.scroll-progress {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon) 0%, var(--color-flame) 130%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
  z-index: 130;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-width);
  background: var(--color-void);
  border-right: 1px solid var(--color-neon-soft);
  display: flex;
  flex-direction: column;
  z-index: 120;
}

.site-header__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
  width: 100%;
  padding: 28px 20px 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
  color: inherit;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 16px;
  background: var(--grad-neon);
  color: var(--color-void);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 20px;
  position: relative;
  overflow: hidden;
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset: -20% -40%;
  background: linear-gradient(100deg, transparent 42%, rgba(255, 255, 255, .55) 50%, transparent 58%);
  transform: skewX(-22deg);
}

.brand__text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brand__name {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-white);
  font-size: 18px;
  line-height: 1.1;
  letter-spacing: .01em;
  white-space: nowrap;
}

.brand__tagline {
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
}

.site-nav {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 0 20px 24px;
}

.site-nav__list {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
  counter-reset: nav-counter;
}

.site-nav__list li {
  counter-increment: nav-counter;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  color: var(--color-gray);
  font-weight: 600;
  font-size: 15px;
  transition: background var(--speed), border-color var(--speed), color var(--speed), transform var(--speed);
}

.site-nav__link::before {
  content: "0" counter(nav-counter);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-neon);
  opacity: .7;
}

.site-nav__link:hover {
  color: var(--color-white);
  background: rgba(57, 255, 20, .07);
  border-color: rgba(57, 255, 20, .18);
  transform: translateX(2px);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-void);
  background: var(--color-neon);
  border-color: var(--color-neon);
  box-shadow: 0 0 28px rgba(57, 255, 20, .28);
}

.site-nav__link[aria-current="page"]::before {
  color: var(--color-void);
  opacity: 1;
}

.site-nav__foot {
  margin-top: auto;
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--color-neon-soft);
  border-radius: var(--radius-pill);
  background: rgba(57, 255, 20, .07);
  color: var(--color-neon);
  font-family: var(--font-mono);
  font-size: 12px;
}

.live-indicator__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 12px var(--color-neon);
}

.site-nav__note {
  margin-top: 10px;
  color: var(--color-muted);
  font-size: 12px;
}

@media (min-width: 981px) {
  body {
    padding-left: var(--rail-width);
  }

  .site-nav {
    transform: none;
    visibility: visible;
  }

  #main-content {
    scroll-margin-top: 24px;
  }
}

@media (max-width: 980px) {
  body {
    padding-left: 0;
  }

  #main-content {
    scroll-margin-top: calc(var(--header-h) + 16px);
  }

  .scroll-progress {
    position: absolute;
  }

  .site-header {
    position: sticky;
    top: 0;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    height: var(--header-h);
    flex-direction: row;
    align-items: center;
    border-right: 0;
    border-bottom: 1px solid var(--color-neon-soft);
    background: rgba(10, 14, 20, .94);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  .site-header__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 100%;
    padding: 0 16px;
  }

  .brand__mark {
    width: 38px;
    height: 38px;
    border-radius: 14px;
  }

  .brand__name {
    font-size: 16px;
  }

  .brand__tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    flex: none;
    border: 1px solid var(--color-neon-soft);
    border-radius: 16px;
    background: var(--color-panel);
    cursor: pointer;
  }

  .nav-toggle__line {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--color-neon);
    border-radius: 2px;
    transition: transform var(--speed), opacity var(--speed);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 110;
    display: flex;
    overflow: auto;
    padding: 24px 20px 28px;
    background: linear-gradient(180deg, #0A0E14 0%, #131A24 100%);
    border-top: 1px solid var(--color-neon-soft);
    transform: translateY(-100%);
    visibility: hidden;
    transition: transform var(--speed) var(--ease), visibility 0s linear var(--speed);
  }

  .site-nav[data-open] {
    transform: translateY(0);
    visibility: visible;
    transition: transform var(--speed) var(--ease), visibility 0s;
  }

  .site-nav__foot {
    margin-top: 24px;
  }
}

.site-footer {
  margin-top: auto;
  padding: clamp(32px, 6vw, 56px) clamp(20px, 4vw, 48px) 24px;
  background: linear-gradient(180deg, rgba(10, 14, 20, .92), #10161F);
  border-top: 1px solid var(--color-neon-soft);
  color: var(--color-gray);
}

.site-footer__inner {
  max-width: 1180px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.3fr .8fr 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.site-footer__summary,
.site-footer__links,
.site-footer__connect {
  display: grid;
  align-content: start;
  gap: 12px;
}

.site-footer__brand {
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-white);
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.site-footer__about {
  font-size: 14px;
  max-width: 34ch;
}

.site-footer__trust {
  font-size: 13px;
  color: var(--color-muted);
  border-left: 2px solid var(--color-neon);
  padding-left: 12px;
}

.site-footer__heading {
  font-family: var(--font-heading);
  color: var(--color-white);
  font-size: 14px;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.site-footer__nav {
  display: grid;
  gap: 8px;
}

.site-footer__nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-gray);
  font-size: 14px;
}

.site-footer__nav-link::before {
  content: "→";
  color: var(--color-neon);
  font-family: var(--font-mono);
}

.site-footer__nav-link:hover {
  color: var(--color-neon);
}

.site-footer__contact {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--color-gray);
}

.site-footer__meta {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 4px;
}

.site-footer__bottom {
  max-width: 1180px;
  margin: 32px auto 0;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, .06);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--color-muted);
}

.site-footer__icp,
.site-footer__copyright {
  font-family: var(--font-mono);
}

.content-shell {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(20px, 4vw, 48px);
}

.content-shell--narrow {
  max-width: 800px;
}

.section {
  padding-block: clamp(40px, 8vw, 80px);
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--color-neon);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-flame);
}

.page-title {
  margin-bottom: 16px;
}

.page-intro {
  max-width: 720px;
  color: var(--color-gray);
  font-size: 18px;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  font-size: 13px;
}

.breadcrumbs__item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--color-neon-soft);
}

.breadcrumbs__link {
  color: var(--color-neon);
}

.breadcrumbs__link:hover {
  color: var(--color-white);
}

.breadcrumbs__current {
  color: var(--color-gray);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  cursor: pointer;
  transition: transform var(--speed), box-shadow var(--speed), background var(--speed), color var(--speed);
}

.btn--primary {
  background: var(--grad-neon);
  color: var(--color-void);
}

.btn--primary:hover {
  box-shadow: 0 0 32px rgba(57, 255, 20, .35);
  transform: translateY(-2px);
  color: var(--color-void);
}

.btn--ghost {
  background: transparent;
  color: var(--color-neon);
  border-color: var(--color-neon-soft);
}

.btn--ghost:hover {
  border-color: var(--color-neon);
  background: rgba(57, 255, 20, .08);
  color: var(--color-neon);
}

.grid {
  display: grid;
  gap: clamp(16px, 3vw, 28px);
}

@media (min-width: 700px) {
  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 981px) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 699px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }
}

.card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 28px);
  background: var(--color-panel);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-neon), transparent 60%);
}

.card--flame::before {
  background: linear-gradient(90deg, var(--color-flame), transparent 60%);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid rgba(57, 255, 20, .22);
  border-radius: var(--radius-pill);
  background: rgba(57, 255, 20, .08);
  color: var(--color-neon);
  font-size: 12px;
  font-weight: 700;
}

.status-badge--hot {
  border-color: rgba(255, 67, 10, .3);
  background: rgba(255, 67, 10, .1);
  color: var(--color-flame);
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-panel);
  border: 1px solid rgba(255, 255, 255, .06);
  border-radius: var(--radius-lg);
  aspect-ratio: 16 / 9;
}

.media-frame--4\/3 {
  aspect-ratio: 4 / 3;
}

.media-frame--card {
  aspect-ratio: 1 / 1;
}

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

.media-frame__placeholder {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1A1E26, #12161D);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 13px;
}

.media-frame__placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(57, 255, 20, .06), transparent 40%);
  pointer-events: none;
}

.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--speed) var(--ease), transform var(--speed) var(--ease);
}

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

@media (max-width: 860px) {
  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

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