@import url('https://fonts.googleapis.com/css2?family=Baloo+2:wght@400;500;600;700&family=Comic+Neue:wght@300;400;700&display=swap');

:root {
  --ink: #0d0d0d;
  --ink-2: #140b1f;
  --violet: #8000ff;
  --magenta: #ff00ff;
  --text: #ece7f8;
  --dim: #a89ec6;
  --line: rgba(128, 0, 255, .40);
  --line-soft: rgba(128, 0, 255, .18);
  --glow-m: 0 0 12px rgba(255, 0, 255, .55);
  --glow-v: 0 0 14px rgba(128, 0, 255, .60);
  --r: 28px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(900px 520px at 90% -10%, rgba(128, 0, 255, .22), transparent 62%),
    radial-gradient(760px 460px at 2% 106%, rgba(255, 0, 255, .13), transparent 60%),
    var(--ink);
  font-family: 'Baloo 2', 'Comic Neue', "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .30;
  background: repeating-linear-gradient(0deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 3px);
}

body.lock { overflow: hidden; }

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

a { color: var(--text); }

h1, h2, h3 { font-weight: 700; line-height: 1.22; letter-spacing: -.01em; }

/* ---------- 头部 ---------- */
.hud-head { position: relative; z-index: 50; }

.strip {
  height: 4px;
  background: linear-gradient(90deg, var(--violet), var(--magenta) 42%, var(--violet) 78%, var(--magenta));
  box-shadow: var(--glow-m);
}

.head-main {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--line-soft);
}

.menu { display: flex; flex-wrap: wrap; gap: 4px; }
.menu-b { justify-content: flex-end; }

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 6px 11px;
  font-size: 16px;
  color: var(--dim);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: color .18s, border-color .18s, box-shadow .18s, transform .18s;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #fff;
  border-color: var(--line);
  box-shadow: inset 0 0 14px rgba(255, 0, 255, .22);
  transform: translateY(-1px);
  outline: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: inset 0 0 18px rgba(128, 0, 255, .28), 0 0 14px rgba(255, 0, 255, .18);
}

.mark { font-size: 18px; line-height: 1; }

.brand-t {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  text-shadow: var(--glow-m);
  white-space: nowrap;
}

.head-right { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }

.burger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 6px 14px;
  font: inherit;
  font-size: 16px;
  color: #fff;
  background: rgba(255, 0, 255, .10);
  border: 1px solid var(--magenta);
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--glow-m);
}

.burger-bars {
  width: 16px;
  height: 2px;
  background: #fff;
  box-shadow: 0 5px 0 #fff, 0 -5px 0 #fff;
}

.anchorbar {
  position: sticky;
  top: 0;
  z-index: 45;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding: 4px 14px;
  background: rgba(10, 6, 16, .93);
  backdrop-filter: blur(9px);
  border-bottom: 1px solid var(--line);
}

.jump {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 8px 12px;
  font-size: 16px;
  color: var(--dim);
  text-decoration: none;
  white-space: nowrap;
  border-radius: 10px;
  transition: color .16s, background .16s;
}

.jump:hover, .jump:focus-visible { color: #fff; background: rgba(255, 0, 255, .14); outline: none; }

.num {
  font-size: 16px;
  font-weight: 700;
  color: var(--magenta);
  letter-spacing: .06em;
  text-shadow: var(--glow-m);
}

/* ---------- 全屏遮罩菜单 ---------- */
.veil {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  flex-direction: column;
  padding: 18px 22px 40px;
  background: rgba(8, 5, 12, .97);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
  overflow-y: auto;
}

.veil.on { opacity: 1; visibility: visible; transform: none; }

.veil-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.veil-brand { font-weight: 700; font-size: 18px; color: #fff; text-shadow: var(--glow-m); }

.veil-x {
  min-height: 44px;
  padding: 8px 18px;
  font: inherit;
  font-size: 16px;
  color: #fff;
  background: transparent;
  border: 1px solid var(--magenta);
  border-radius: 999px;
  cursor: pointer;
}

.veil-nav { display: flex; flex-direction: column; margin-top: 10px; }

.veil-link {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 10px 4px;
  font-size: clamp(1.25rem, 4.6vw, 1.9rem);
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px dashed rgba(128, 0, 255, .30);
}

.veil-link:hover, .veil-link:focus-visible { color: #fff; text-shadow: var(--glow-m); outline: none; }

/* ---------- 主体 ---------- */
main { display: block; }

.hero {
  display: grid;
  grid-template-columns: 208px minmax(0, 1fr) minmax(0, .92fr);
  gap: 30px;
  align-items: start;
  min-height: 45vh;
  padding: 34px 22px 40px;
  border-bottom: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--magenta), var(--violet), transparent) 1;
}

.rail {
  position: sticky;
  top: 68px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 10px;
  border-left: 2px solid var(--line);
}

.rail .jump { min-height: 40px; padding: 6px 8px; font-size: 16px; }

.hero-copy { max-width: 34ch; }

.hero-title {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5.4vw, 3.3rem);
  color: #fff;
  text-shadow: 0 0 18px rgba(255, 0, 255, .55), 2px 2px 0 rgba(128, 0, 255, .75);
  animation: glitch 6s steps(1, end) infinite;
}

.lede { margin: 0; color: var(--dim); font-size: 17px; max-width: 30ch; }

.hero-fig {
  position: relative;
  margin: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: linear-gradient(160deg, rgba(128, 0, 255, .16), rgba(13, 13, 13, .6) 55%);
  box-shadow: inset 0 0 28px rgba(255, 0, 255, .16);
  overflow: hidden;
  min-height: 190px;
}

.hero-img { position: relative; z-index: 2; width: 100%; border-radius: 18px; }

.fig-deco { position: absolute; inset: 0; z-index: 1; }

.fig-deco span {
  position: absolute;
  display: block;
  height: 2px;
  width: 46%;
  background: linear-gradient(90deg, var(--magenta), transparent);
  opacity: .85;
}

.fig-deco span:nth-child(1) { top: 16%; left: 0; }
.fig-deco span:nth-child(2) { top: 46%; right: 0; transform: scaleX(-1); background: linear-gradient(90deg, var(--violet), transparent); }
.fig-deco span:nth-child(3) { bottom: 14%; left: 12%; width: 34%; }

/* ---------- 正文章节 ---------- */
main > article:not(.hero) {
  max-width: 76ch;
  margin: 0 auto;
  padding: 52px 22px;
  border-top: 1px solid var(--line-soft);
}

main > article:not(.hero):nth-child(odd) {
  background: linear-gradient(180deg, rgba(128, 0, 255, .06), transparent 70%);
}

article[id] { scroll-margin-top: 74px; }

main > article:not(.hero) h2,
main > article:not(.hero) h3 {
  position: relative;
  margin: 0 0 8px;
  padding-left: 16px;
  font-size: clamp(1.4rem, 3.6vw, 1.95rem);
  color: #fff;
  text-shadow: var(--glow-v);
}

main > article:not(.hero) h2::before,
main > article:not(.hero) h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: .28em;
  bottom: .28em;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--magenta), var(--violet));
  box-shadow: var(--glow-m);
}

main > article:not(.hero) h2 + hr,
main > article:not(.hero) h3 + hr {
  margin: 6px 0 26px;
  border: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--magenta), rgba(128, 0, 255, .55) 45%, transparent);
}

hr { border: 0; height: 1px; background: var(--line-soft); margin: 28px 0; }

main > article:not(.hero) p { margin: 0 0 18px; }

main > article:not(.hero) a {
  color: #f7d9ff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 0, 255, .6);
}

main > article:not(.hero) a:hover { color: #fff; box-shadow: 0 2px 0 var(--magenta); }

main > article:not(.hero) ul,
main > article:not(.hero) ol { padding-left: 22px; margin: 0 0 20px; }

main > article:not(.hero) li { margin: 8px 0; }

main > article:not(.hero) blockquote {
  margin: 22px 0;
  padding: 14px 18px;
  border-left: 3px solid var(--magenta);
  border-radius: 0 var(--r) var(--r) 0;
  background: rgba(255, 0, 255, .07);
  color: #f4e9ff;
}

main > article:not(.hero) figure { margin: 22px 0; }

main > article:not(.hero) figcaption { font-size: 16px; color: var(--dim); margin-top: 8px; }

main > article:not(.hero) img,
main > article:not(.hero) figure img {
  border-radius: 18px;
  border: 1px solid var(--line-soft);
}

main > article:not(.hero) aside {
  margin: 22px 0;
  padding: 16px 18px;
  border: 1px dashed var(--line);
  border-radius: var(--r);
  background: rgba(128, 0, 255, .07);
}

main > article:not(.hero) table { width: 100%; border-collapse: collapse; font-size: 16px; }

main > article:not(.hero) th,
main > article:not(.hero) td {
  border: 1px solid var(--line-soft);
  padding: 9px 12px;
  text-align: left;
}

/* ---------- 页脚 ---------- */
.hud-foot {
  margin-top: 40px;
  padding: 40px 22px 26px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(128, 0, 255, .12), transparent 70%);
}

.foot-top h2 { margin: 0; }

.foot-brand {
  font-size: clamp(2.1rem, 8.4vw, 5.4rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: transparent;
  background: linear-gradient(92deg, #b45cff, var(--magenta) 70%);
  -webkit-background-clip: text;
  background-clip: text;
  word-break: break-word;
}

.foot-top hr {
  height: 2px;
  margin: 14px 0 24px;
  background: linear-gradient(90deg, var(--magenta), transparent);
}

.foot-links dl {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 6px;
  margin: 0;
}

.foot-links dt { margin: 0; }

.foot-links dd {
  margin: 0 16px 0 2px;
  font-size: 16px;
  font-weight: 700;
  color: var(--violet);
  letter-spacing: .08em;
}

.foot-links dt a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 4px;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.foot-links dt a:hover,
.foot-links dt a:focus-visible {
  color: #fff;
  border-bottom-color: var(--magenta);
  text-shadow: var(--glow-m);
  outline: none;
}

.foot-base { margin-top: 20px; text-align: center; }

.foot-base p { margin: 0; font-size: 16px; color: var(--dim); }

.totop {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 70;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  font-size: 16px;
  color: #fff;
  text-decoration: none;
  background: rgba(13, 13, 13, .9);
  border: 1px solid var(--violet);
  border-radius: 999px;
  box-shadow: var(--glow-v);
}

.totop:hover { border-color: var(--magenta); box-shadow: var(--glow-m); }

/* ---------- 动效 ---------- */
@keyframes glitch {
  0%, 88%, 100% { transform: none; }
  90% { transform: skewX(-3deg) translateX(-2px); }
  92% { transform: skewX(2deg) translateX(2px); }
  94% { transform: none; }
}

@keyframes rvIn {
  from { opacity: .001; transform: translateY(22px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    main > article:not(.hero) {
      animation: rvIn linear both;
      animation-timeline: view();
      animation-range: entry 4% cover 32%;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-title { animation: none; }
  .nav-link:hover, .jump:hover { transform: none; }
}

/* ---------- 断点 ---------- */
@media (max-width: 980px) {
  .menu { display: none; }
  .head-main { grid-template-columns: auto 1fr auto; }
  .brand { justify-self: start; }
  .hero { grid-template-columns: 180px minmax(0, 1fr); }
  .hero-fig { grid-column: 1 / -1; margin-top: 6px; }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .head-main { padding: 8px 14px; gap: 8px; }
  .brand-t { font-size: 16px; }
  .hero {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 16px 30px;
  }
  .rail {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    gap: 4px;
    padding: 0 0 8px;
    border-left: 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .rail .jump { flex: 0 0 auto; border: 1px solid var(--line-soft); }
  .hero-copy { max-width: none; }
  .hero-fig { grid-column: auto; min-height: 150px; }
  main > article:not(.hero) { padding: 40px 16px; }
  .foot-links dl { gap: 2px 4px; }
  .foot-links dd { margin-right: 10px; }
  .totop { right: 12px; bottom: 12px; }
}
</｜DSML｜ parameter>
</｜DSML｜ invoke>
</｜DSML｜ calls>

button[aria-expanded]{min-width:44px;min-height:44px}