:root {
  --bg: #0A1428;
  --bg-2: #1E293B;
  --bg-3: #060D1C;
  --ink: #F5F0E6;
  --muted: #6B7280;
  --accent: #39FF88;
  --accent-2: #FF6A3D;
  --moss: #4A7C59;
  --clay: #C67B4E;
  --line: rgba(245,240,230,.12);
  --line-green: rgba(57,255,136,.2);
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "Roboto Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Liberation Mono", monospace;
  --cut: 18px;
  --bevel: polygon(var(--cut) 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, var(--cut) 100%, 0 calc(100% - var(--cut)), 0 var(--cut));
}

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

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

body {
  min-height: 100vh;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(57,255,136,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,136,.035) 1px, transparent 1px);
  background-size: 34px 34px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
}

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

a {
  color: inherit;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.02em;
}

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

::selection {
  background: rgba(57,255,136,.28);
}

#main-content {
  scroll-margin-top: 96px;
}

.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;
}

.container {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.section {
  position: relative;
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1rem;
  margin-bottom: 2rem;
}

.sec-label {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
}

.sec-label::before {
  content: "";
  display: inline-block;
  width: 2.2rem;
  height: 2px;
  background: var(--accent);
  transform: skewX(-35deg);
}

.page-head {
  position: relative;
  padding-block: clamp(4.5rem, 10vw, 7rem) clamp(1.5rem, 4vw, 3rem);
}

.page-head__sub {
  margin-bottom: .8rem;
  font-family: var(--font-mono);
  font-size: .85rem;
  letter-spacing: .14em;
  color: var(--accent);
}

.page-head__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  text-transform: uppercase;
}

.prose p {
  margin-bottom: 1rem;
  color: rgba(245,240,230,.84);
}

.prose a {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.4rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--bg);
  background: var(--accent-2);
  clip-path: var(--bevel);
  --cut: 12px;
  transition: transform .2s ease, filter .2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
}

.btn--primary {
  background: var(--accent-2);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.16);
}

.btn--ghost {
  background: rgba(57,255,136,.06);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(57,255,136,.45);
}

.tag {
  display: inline-block;
  padding: .25rem .6rem;
  border-left: 2px solid var(--accent);
  background: rgba(57,255,136,.08);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--accent);
}

.note {
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--accent-2);
  background: rgba(255,106,61,.08);
  font-size: .88rem;
}

.divider {
  height: 1px;
  border: 0;
  margin: 2.5rem 0;
  background: linear-gradient(90deg, transparent, rgba(57,255,136,.4), transparent);
}

.card {
  position: relative;
  padding: 1.4rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  clip-path: var(--bevel);
  --cut: 16px;
  transition: transform .2s ease, border-color .2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(57,255,136,.5);
}

.card__title {
  margin-bottom: .4rem;
  font-size: 1.1rem;
}

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-2);
  border: 1px dashed rgba(57,255,136,.25);
  clip-path: var(--bevel);
  --cut: 14px;
}

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

.media-frame--wide {
  aspect-ratio: 21 / 9;
}

.media-frame__ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: repeating-linear-gradient(-45deg, rgba(255,255,255,.02) 0 8px, transparent 8px 16px), var(--bg-2);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--muted);
  text-transform: uppercase;
}

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

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

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

.split {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 2rem;
}

.aside {
  align-self: start;
  padding: 1.25rem;
  background: rgba(30,41,59,.65);
  border: 1px solid var(--line);
  clip-path: var(--bevel);
  --cut: 14px;
}

.data-num {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.data-label {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}

.data-table th,
.data-table td {
  padding: .6rem .75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
}

.data-table tbody tr:hover {
  background: rgba(57,255,136,.04);
}

.toc {
  position: sticky;
  top: 92px;
  align-self: start;
  padding: 1.1rem;
  background: rgba(30,41,59,.72);
  border: 1px solid var(--line);
  clip-path: var(--bevel);
  --cut: 14px;
}

.toc__title {
  margin-bottom: .75rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}

.spy-link {
  display: flex;
  gap: .55rem;
  align-items: baseline;
  padding: .32rem .4rem;
  border-left: 2px solid transparent;
  color: var(--muted);
  font-size: .85rem;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.spy-link:hover {
  color: var(--ink);
}

.spy-link.is-active {
  border-left-color: var(--accent);
  color: var(--accent);
}

[data-reveal] {
  transition: opacity .55s ease, transform .55s ease;
}

[data-reveal].is-pending {
  opacity: 0;
  transform: translateY(24px);
}

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

.skip-link {
  position: fixed;
  top: .6rem;
  left: 50%;
  z-index: 1300;
  padding: .55rem 1.1rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  text-decoration: none;
  clip-path: var(--bevel);
  --cut: 10px;
  transform: translateX(-50%) translateY(-180%);
  transition: transform .25s ease;
}

.skip-link:focus {
  transform: translateX(-50%) translateY(0);
}

.site-header {
  position: fixed;
  top: clamp(.4rem, 1.5vw, 1rem);
  left: 0;
  right: 0;
  z-index: 1200;
  padding-inline: clamp(.75rem, 2.5vw, 1.5rem);
}

.site-header__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem 1rem;
  max-width: 1280px;
  margin-inline: auto;
  padding: .65rem .9rem;
  background: rgba(8,16,34,.88);
  backdrop-filter: blur(10px);
  clip-path: var(--bevel);
  --cut: 18px;
  filter: drop-shadow(0 14px 30px rgba(0,0,0,.38));
}

.site-header__inner::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(57,255,136,.22);
  clip-path: var(--bevel);
  --cut: 18px;
  pointer-events: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--ink);
}

.brand__mark {
  display: inline-block;
  padding: .35rem .45rem .3rem;
  background: var(--accent);
  clip-path: var(--bevel);
  --cut: 6px;
  font-family: var(--font-mono);
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1;
  color: #0B0F1A;
  letter-spacing: .01em;
}

.brand__text {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: .01em;
}

.brand__text span {
  margin-left: .1rem;
  color: var(--accent);
}

.brand--footer .brand__text {
  font-size: 1.4rem;
}

.site-header__status {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-right: .75rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--muted);
  white-space: nowrap;
}

.site-header__dot {
  width: .55rem;
  height: .55rem;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: dot-pulse 1.6s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .55; transform: scale(.8); }
}

.site-nav {
  margin-left: auto;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .1rem;
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: .4rem;
  padding: .55rem .65rem;
  color: var(--ink);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .02em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease, background .2s ease;
}

.site-nav__link:hover {
  color: var(--accent);
}

.site-nav__link[aria-current="page"] {
  color: var(--accent);
}

.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: .65rem;
  right: .65rem;
  bottom: .35rem;
  height: 2px;
  background: var(--accent);
  transform: skewX(-30deg);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .05em;
  color: var(--muted);
}

.site-nav__link[aria-current="page"] .site-nav__idx {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 42px;
  margin-left: auto;
  background: var(--bg-2);
  clip-path: var(--bevel);
  --cut: 10px;
}

.nav-toggle__bar {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--accent);
  transition: transform .25s ease, opacity .25s ease;
}

.nav-toggle__bar:nth-child(1) {
  top: 14px;
}

.nav-toggle__bar:nth-child(2) {
  top: 20px;
}

.nav-toggle__bar:nth-child(3) {
  top: 26px;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  top: 20px;
  transform: rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
  top: 20px;
  transform: rotate(-45deg);
}

.go-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1400;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.site-footer {
  position: relative;
  margin-top: clamp(3rem, 7vw, 5.5rem);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(8,16,34,.92), var(--bg-3));
  border-top: 1px solid rgba(57,255,136,.18);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2) 40%, transparent 72%);
  opacity: .6;
}

.site-footer__inner {
  max-width: 1240px;
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 2rem) 1.5rem;
}

.footer-feed {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.5rem;
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
  border-bottom: 1px dashed rgba(57,255,136,.15);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.footer-feed span::before {
  content: "» ";
  color: var(--accent);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  margin-bottom: 2rem;
}

.footer-brand__claim {
  margin-bottom: .5rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}

.footer-brand__desc {
  max-width: 34em;
  font-size: .9rem;
  color: var(--muted);
}

.footer-col__title {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: .8rem;
  font-size: .95rem;
}

.footer-col__idx {
  display: inline-block;
  padding: .1rem .35rem;
  background: var(--accent-2);
  clip-path: var(--bevel);
  --cut: 4px;
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--bg);
}

.footer-links li + li {
  margin-top: .3rem;
}

.footer-links a {
  position: relative;
  display: inline-block;
  font-size: .9rem;
  text-decoration: none;
  color: var(--ink);
  opacity: .75;
  transition: opacity .2s ease, transform .2s ease;
}

.footer-links a::before {
  content: "";
  position: absolute;
  left: -.8rem;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width .2s ease;
}

.footer-links a:hover {
  color: var(--accent);
  opacity: 1;
  transform: translateX(4px);
}

.footer-links a:hover::before {
  width: .45rem;
}

.footer-col--contact {
  padding: .8rem .95rem;
  background: rgba(255,255,255,.02);
  border: 1px dashed rgba(57,255,136,.14);
  clip-path: var(--bevel);
  --cut: 10px;
}

.footer-meta li {
  display: flex;
  gap: .6rem;
  margin-bottom: .5rem;
  font-size: .88rem;
  color: var(--ink);
  opacity: .8;
}

.footer-meta__label {
  align-self: flex-start;
  padding: .15rem .4rem;
  background: rgba(57,255,136,.06);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--accent);
  white-space: nowrap;
}

.footer-note {
  position: relative;
  padding: 1rem 1.1rem 1rem 1.4rem;
  margin-bottom: 1.5rem;
  border-left: 3px solid var(--accent);
  background: rgba(57,255,136,.05);
  font-size: .85rem;
  color: var(--ink);
}

.footer-note__label {
  display: block;
  margin-bottom: .35rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .02em;
  color: var(--muted);
}

.footer-tags span::before {
  content: "› ";
  font-weight: 700;
  color: var(--accent-2);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .6rem 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--muted);
}

.footer-bottom__copy span {
  color: var(--accent);
}

.to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 1100;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.1rem;
  background: rgba(8,16,34,.9);
  border: 1px solid rgba(57,255,136,.35);
  clip-path: var(--bevel);
  --cut: 9px;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s ease, background .25s ease;
}

.to-top::before {
  content: "↑";
  font-weight: 700;
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background: var(--accent);
  color: var(--bg);
}

@media (max-width: 960px) {
  .site-header__inner {
    padding: .6rem .75rem;
  }

  .site-header__status {
    margin-right: .25rem;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    flex: 1 0 100%;
    order: 6;
    margin-top: .5rem;
    padding-top: .5rem;
    border-top: 1px dashed rgba(57,255,136,.18);
  }

  .site-nav[data-open] {
    display: block;
    animation: nav-drop .25s ease;
  }

  @keyframes nav-drop {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: none; }
  }

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

  .site-nav__link {
    display: flex;
    justify-content: space-between;
    padding: .7rem .6rem;
    border-bottom: 1px solid rgba(255,255,255,.04);
  }

  .site-nav__item:last-child .site-nav__link {
    border-bottom: 0;
  }

  .site-nav__link[aria-current="page"]::after {
    left: .6rem;
    right: .6rem;
    bottom: .2rem;
  }

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

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

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

@media (max-width: 760px) {
  .site-header__status {
    display: none;
  }

  .nav-toggle {
    margin-left: auto;
  }
}

@media (max-width: 640px) {
  .site-header {
    padding-inline: .5rem;
  }

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

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

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

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

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  [data-reveal].is-pending {
    opacity: 1;
    transform: none;
  }

  .site-header__dot {
    animation: none;
  }

  .site-header__inner,
  .site-footer::before {
    transition: none;
  }
}