/* ============================================================
   电玩城电玩网络 · 共享站点外壳
   neon arcade order / machine panel / indexed command bar
   ============================================================ */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

ul, ol { padding: 0; list-style: none; }

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

:root {
  --ink-900: #0B0E14;
  --panel-850: #141A24;
  --panel-700: #1E2733;
  --magenta: #FF2E8A;
  --blue: #2FD8FF;
  --gold: #F5B84B;
  --orange: #FFA51F;
  --mist-100: #E8EFF2;
  --mist-300: #C5D2D8;
  --text-100: #F7F9FC;
  --text-300: #B8C2CC;
  --success: #3DDC97;

  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-editorial: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", "SFMono-Regular", "Courier New", monospace;

  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(255, 255, 255, 0.20);
  --line-soft: rgba(255, 255, 255, 0.06);

  --header-h: 66px;
  --container: 1240px;
  --radius: 2px;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

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

body {
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(255, 46, 138, 0.11), transparent 62%),
    radial-gradient(780px 460px at 94% 2%, rgba(47, 216, 255, 0.09), transparent 64%),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.017) 0 1px, transparent 1px 5px);
  background-attachment: fixed;
  color: var(--text-100);
  font: 400 16px/28px var(--font-body);
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

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

::selection { background: var(--magenta); color: #0B0E14; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
}

#main-content { display: block; outline: none; }

/* ---------- 通用工具 ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 40px);
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.serif { font-family: var(--font-editorial); }

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

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--magenta);
  color: #0B0E14;
  font: 700 13px/1 var(--font-body);
  border-radius: var(--radius);
  transform: translateY(-160%);
  transition: transform .18s var(--ease);
}
.skip-link:focus { transform: translateY(0); text-decoration: none; }

/* ---------- 命令栏头部 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(11, 14, 20, 0.94);
  border-bottom: 1px solid var(--line);
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
@supports (backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px)) {
  .site-header {
    background: rgba(11, 14, 20, 0.80);
    -webkit-backdrop-filter: blur(10px) saturate(120%);
    backdrop-filter: blur(10px) saturate(120%);
  }
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(47, 216, 255, .7), rgba(255, 46, 138, .8), transparent);
  opacity: .55;
  pointer-events: none;
}

.site-header[data-condensed="true"] {
  border-bottom-color: rgba(255, 46, 138, .38);
  background: rgba(9, 12, 17, 0.96);
}

.header-progress {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: rgba(255, 255, 255, 0.05);
  overflow: hidden;
}
.header-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--blue), var(--magenta) 70%, var(--gold));
  box-shadow: 0 0 14px rgba(255, 46, 138, 0.75);
  transition: width .08s linear;
}

.cmd-bar {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  min-height: var(--header-h);
  padding-block: 10px;
  transition: padding .2s var(--ease), min-height .2s var(--ease);
}
.site-header[data-condensed="true"] .cmd-bar {
  min-height: 54px;
  padding-block: 6px;
}

/* 品牌铭牌 */

.cmd-brand {
  order: 1;
  display: flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  color: var(--text-100);
  text-decoration: none;
}
.cmd-brand:hover { text-decoration: none; }

.cmd-brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  flex: 0 0 36px;
  font: 700 12px/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--gold);
  background: linear-gradient(155deg, var(--panel-700), var(--panel-850));
  border: 1px solid rgba(255, 46, 138, .55);
  border-radius: var(--radius);
  box-shadow: inset 0 0 14px rgba(255, 46, 138, .20), 0 0 12px rgba(255, 46, 138, .12);
}
.cmd-brand__mark::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(47, 216, 255, .26);
  border-radius: 1px;
  pointer-events: none;
}

.cmd-brand__text { display: flex; flex-direction: column; gap: 1px; }

.cmd-brand__name {
  font: 700 15px/1.25 var(--font-display);
  letter-spacing: .02em;
  color: var(--text-100);
}
.cmd-brand__sub {
  font: 500 10px/1.3 var(--font-mono);
  letter-spacing: .16em;
  color: var(--text-300);
  transition: opacity .18s var(--ease);
}
.site-header[data-condensed="true"] .cmd-brand__sub { opacity: 0; }

/* 导航 */

.cmd-nav {
  order: 2;
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}
.cmd-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}
.cmd-nav__item { display: block; }

.cmd-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 11px 11px;
  color: var(--text-300);
  font: 600 13.5px/1 var(--font-body);
  letter-spacing: .02em;
  white-space: nowrap;
  text-decoration: none;
  transition: color .16s var(--ease);
}
.cmd-nav__link::after {
  content: "";
  position: absolute;
  left: 9px; right: 9px; bottom: 3px;
  height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 10px rgba(255, 46, 138, .85);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .18s var(--ease);
}
.cmd-nav__link:hover { color: var(--text-100); text-decoration: none; }
.cmd-nav__link:hover::after { transform: scaleX(.55); }

.cmd-nav__idx {
  font: 500 9.5px/1 var(--font-mono);
  letter-spacing: .1em;
  color: rgba(245, 184, 75, .72);
}

.cmd-nav__label { position: relative; top: .5px; }

.cmd-nav__dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px var(--blue);
  opacity: 0;
  transform: scale(.4);
  transition: opacity .16s var(--ease), transform .16s var(--ease);
}

.cmd-nav__link[aria-current="page"] { color: var(--text-100); }
.cmd-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.cmd-nav__link[aria-current="page"] .cmd-nav__idx { color: var(--gold); }
.cmd-nav__link[aria-current="page"] .cmd-nav__dot { opacity: 1; transform: scale(1); }

/* 工具区 */

.cmd-tools {
  order: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.cmd-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(30, 39, 51, .9), rgba(20, 26, 36, .9));
  white-space: nowrap;
}
.cmd-meta__label {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--text-300);
}
.cmd-meta__value {
  font: 600 12px/1 var(--font-mono);
  color: var(--text-100);
}
.cmd-meta__ver {
  padding: 2px 5px;
  font: 600 10px/1 var(--font-mono);
  color: var(--ink-900);
  background: var(--gold);
  border-radius: 1px;
}

.cmd-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 15px;
  font: 700 13px/1 var(--font-body);
  letter-spacing: .04em;
  color: #10120A;
  background: var(--orange);
  border: 1px solid rgba(255, 210, 130, .5);
  border-radius: var(--radius);
  box-shadow: 0 6px 18px rgba(255, 165, 31, .20);
  white-space: nowrap;
  text-decoration: none;
  transition: transform .16s var(--ease), box-shadow .16s var(--ease), background .16s var(--ease);
}
.cmd-cta:hover {
  background: var(--gold);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(245, 184, 75, .30);
  text-decoration: none;
}
.cmd-cta__arrow { font: 700 12px/1 var(--font-mono); }

/* 移动索引按钮 */

.nav-toggle {
  order: 4;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  color: var(--text-100);
  background: var(--panel-700);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font: 600 12px/1 var(--font-mono);
  letter-spacing: .12em;
  cursor: pointer;
  transition: border-color .16s var(--ease), background .16s var(--ease);
}
.nav-toggle:hover { border-color: rgba(47, 216, 255, .55); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px; height: 10px;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px; height: 2px;
  background: var(--blue);
  box-shadow: 0 0 8px rgba(47, 216, 255, .7);
  transition: transform .18s var(--ease), top .18s var(--ease);
}
.nav-toggle__bars::before { top: 1px; }
.nav-toggle__bars::after { top: 7px; }

.nav-toggle[aria-expanded="true"] { border-color: var(--magenta); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  top: 4px;
  transform: rotate(45deg);
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 46, 138, .8);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  top: 4px;
  transform: rotate(-45deg);
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 46, 138, .8);
}

/* ---------- 页脚机台面板 ---------- */

.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 104px);
  padding-bottom: clamp(20px, 3vw, 36px);
  background: linear-gradient(180deg, rgba(20, 26, 36, 0) 0%, rgba(9, 12, 17, .92) 42%, #080B10 100%);
  border-top: 1px solid var(--line);
}
.site-footer::before {
  content: "";
  position: absolute;
  inset: -1px 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--magenta) 18%, var(--blue) 52%, var(--gold) 84%, transparent);
  opacity: .5;
}

.footer-panel {
  position: relative;
  margin-top: clamp(24px, 4vw, 44px);
  padding: clamp(22px, 3.4vw, 42px);
  background:
    linear-gradient(180deg, rgba(30, 39, 51, .96), rgba(16, 23, 33, .98));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .05);
}
.footer-panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 64px; height: 3px;
  background: var(--magenta);
  box-shadow: 0 0 14px rgba(255, 46, 138, .7);
}
.footer-panel::after {
  content: "";
  position: absolute;
  inset: auto 0 0 auto;
  width: 64px; height: 3px;
  background: var(--blue);
  box-shadow: 0 0 14px rgba(47, 216, 255, .6);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1.35fr) minmax(130px, .75fr) minmax(230px, 1.15fr) minmax(190px, 1fr);
  gap: clamp(20px, 3vw, 40px);
}

.footer-col { min-width: 0; }
.footer-col--brand { padding-right: 8px; }

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font: 700 11.5px/1 var(--font-mono);
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
}
.footer-col__title::before {
  content: "";
  width: 16px; height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 46, 138, .6);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-100);
  text-decoration: none;
}
.footer-brand:hover { text-decoration: none; }

.footer-brand__mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  font: 700 11px/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--gold);
  background: var(--panel-850);
  border: 1px solid rgba(47, 216, 255, .45);
  border-radius: var(--radius);
}

.footer-brand__name {
  font: 700 15px/1.2 var(--font-display);
  letter-spacing: .02em;
}

.footer-brand__slogan {
  margin-top: 14px;
  font: 700 clamp(17px, 1.4vw, 19px)/1.5 var(--font-editorial);
  color: var(--text-100);
  letter-spacing: .02em;
}
.footer-brand__note {
  margin-top: 8px;
  max-width: 32ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-300);
}

.footer-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 10px;
  font: 500 10.5px/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--blue);
  border: 1px dashed rgba(47, 216, 255, .40);
  border-radius: var(--radius);
}

.footer-list { display: flex; flex-direction: column; }

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  color: var(--text-300);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}
.footer-link::before {
  content: "";
  width: 6px; height: 6px;
  background: rgba(47, 216, 255, .45);
  transform: rotate(45deg);
  transition: background .16s var(--ease);
}
.footer-link:hover {
  color: var(--text-100);
  padding-left: 3px;
  text-decoration: none;
}
.footer-link:hover::before { background: var(--magenta); }

.footer-list--meta .footer-list__row {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(255, 255, 255, .08);
}
.footer-list--meta .footer-list__row:last-child { border-bottom: 0; }

.footer-list__k {
  font: 500 10px/1.4 var(--font-mono);
  letter-spacing: .14em;
  color: rgba(245, 184, 75, .82);
}
.footer-list__v {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-100);
  overflow-wrap: anywhere;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 20px;
  margin-top: clamp(20px, 3vw, 32px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.footer-legal__copy {
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-300);
}
.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 16px;
}
.footer-legal__link {
  font-size: 12px;
  color: var(--text-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease);
}
.footer-legal__link:hover {
  color: var(--blue);
  border-bottom-color: rgba(47, 216, 255, .6);
  text-decoration: none;
}
.footer-legal__link--hot {
  padding: 5px 10px;
  color: #10120A;
  background: var(--orange);
  border-radius: var(--radius);
  font-weight: 700;
}
.footer-legal__link--hot:hover {
  color: #10120A;
  background: var(--gold);
  border-bottom-color: transparent;
}
.footer-legal__icp {
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--text-300);
}

/* ---------- 通用页面骨架 ---------- */

.section { padding-block: clamp(36px, 6vw, 76px); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  margin-bottom: clamp(20px, 3vw, 34px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .2em;
  color: var(--gold);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 18px; height: 2px;
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 46, 138, .65);
}

.section-title {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.25;
  color: var(--text-100);
}

.lead {
  font: 400 clamp(16px, 1.4vw, 19px)/1.85 var(--font-editorial);
  color: var(--text-300);
  max-width: 58ch;
}

.grid { display: grid; gap: clamp(14px, 2.2vw, 26px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.split-main-rail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: clamp(20px, 3vw, 44px);
  align-items: start;
}
.rail-sticky {
  position: sticky;
  top: calc(var(--header-h) + 18px);
}

.panel {
  position: relative;
  padding: clamp(16px, 2.2vw, 26px);
  background: linear-gradient(180deg, rgba(30, 39, 51, .82), rgba(20, 26, 36, .92));
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.panel--frame {
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .03), 0 18px 40px rgba(0, 0, 0, .32);
}
.panel--frame::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 44px; height: 2px;
  background: var(--blue);
  box-shadow: 0 0 10px rgba(47, 216, 255, .7);
}

/* 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font: 700 14px/1.2 var(--font-body);
  letter-spacing: .03em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: transform .16s var(--ease), background .16s var(--ease), box-shadow .16s var(--ease), border-color .16s var(--ease), color .16s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn--primary {
  color: #150410;
  background: var(--magenta);
  box-shadow: 0 8px 24px rgba(255, 46, 138, .26);
}
.btn--primary:hover { background: #ff4d9b; box-shadow: 0 10px 28px rgba(255, 46, 138, .34); }

.btn--ghost {
  color: var(--text-100);
  background: transparent;
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--blue); color: var(--blue); }

.btn--gold {
  color: #12100A;
  background: var(--gold);
  box-shadow: 0 8px 22px rgba(245, 184, 75, .22);
}
.btn--gold:hover { background: #ffc964; }

.btn--sm { padding: 8px 13px; font-size: 12.5px; }

/* 标签 */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font: 600 11px/1.5 var(--font-mono);
  letter-spacing: .08em;
  color: var(--text-100);
  background: rgba(255, 255, 255, .06);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}
.tag--magenta { color: #1A0310; background: var(--magenta); border-color: transparent; }
.tag--blue { color: #041A20; background: var(--blue); border-color: transparent; }
.tag--gold { color: #1A1204; background: var(--gold); border-color: transparent; }
.tag--success { color: #04170F; background: var(--success); border-color: transparent; }

/* 面包屑 */

.breadcrumb { padding-block: 16px; border-bottom: 1px solid var(--line-soft); }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font: 500 11.5px/1.6 var(--font-mono);
  letter-spacing: .06em;
  color: var(--text-300);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(255, 255, 255, .28);
}
.breadcrumb__link { color: var(--text-300); text-decoration: none; }
.breadcrumb__link:hover { color: var(--blue); text-decoration: none; }
.breadcrumb__item[aria-current="page"] { color: var(--gold); }

/* 章节索引 / 滚动高亮 */

.index-nav { display: flex; flex-direction: column; gap: 2px; }
.index-nav__item { display: block; }

.index-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  color: var(--text-300);
  font-size: 13.5px;
  line-height: 1.5;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}
.index-nav__link:hover { color: var(--text-100); background: rgba(255, 255, 255, .04); text-decoration: none; }
.index-nav__link.is-active,
.index-nav__link[aria-current="true"] {
  color: var(--text-100);
  border-left-color: var(--magenta);
  background: linear-gradient(90deg, rgba(255, 46, 138, .14), transparent);
}

/* 正文排版 */

.prose { max-width: 70ch; color: var(--text-300); }
.prose > * + * { margin-top: 16px; }
.prose h2 {
  margin-top: clamp(26px, 3.4vw, 40px);
  font-size: clamp(21px, 2.3vw, 27px);
  color: var(--text-100);
}
.prose h3 {
  margin-top: 24px;
  font-size: 18px;
  color: var(--text-100);
}
.prose strong { color: var(--gold); font-weight: 700; }
.prose a { color: var(--blue); }
.prose ul, .prose ol { padding-left: 20px; list-style: none; }
.prose ul li, .prose ol li { position: relative; padding-left: 16px; margin-top: 8px; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 6px; height: 6px;
  background: var(--magenta);
  transform: rotate(45deg);
}
.prose ol { counter-reset: prose-ol; }
.prose ol li { counter-increment: prose-ol; }
.prose ol li::before {
  content: counter(prose-ol, decimal-leading-zero);
  position: absolute;
  left: 0; top: 3px;
  font: 600 11px/1.6 var(--font-mono);
  color: var(--gold);
}
.prose blockquote {
  padding: 14px 18px;
  border-left: 2px solid var(--blue);
  background: rgba(47, 216, 255, .06);
  font-family: var(--font-editorial);
  color: var(--text-100);
}
.prose hr {
  height: 1px;
  border: 0;
  background: var(--line);
  margin-block: 28px;
}

/* 图片容器基础规则（页面阶段放置图位） */

.media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(30, 39, 51, .95), rgba(16, 23, 33, .98));
}
.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 34px);
  pointer-events: none;
}
.media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame__cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 12px;
  font: 500 11px/1.5 var(--font-mono);
  letter-spacing: .08em;
  color: var(--mist-100);
  background: linear-gradient(180deg, rgba(11, 14, 20, 0), rgba(11, 14, 20, .88));
}
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame--wide { aspect-ratio: 21 / 9; }

/* ---------- 响应式 ---------- */

@media (max-width: 1180px) {
  .cmd-meta { display: none; }
  .cmd-nav__link { padding: 9px 8px 11px; font-size: 13px; }
  .cmd-nav__idx { font-size: 9px; }
  .footer-grid {
    grid-template-columns: minmax(200px, 1.2fr) minmax(130px, .8fr) minmax(200px, 1.1fr);
  }
  .footer-col--brand { grid-column: 1 / -1; }
}

@media (max-width: 960px) {
  :root { --header-h: 60px; }

  .cmd-bar { gap: 10px; }
  .cmd-brand { margin-right: auto; }
  .cmd-brand__sub { display: none; }
  .nav-toggle { display: inline-flex; }
  .cmd-tools { order: 2; }
  .nav-toggle { order: 3; }
  .cmd-cta { padding: 9px 12px; font-size: 12px; }

  .cmd-nav {
    order: 9;
    position: absolute;
    inset: 100% 0 auto 0;
    display: block;
    flex: none;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 10px clamp(16px, 4vw, 28px) 22px;
    background: linear-gradient(180deg, #10161F 0%, #0B0E14 100%);
    border-top: 1px solid rgba(255, 46, 138, .28);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 24px 50px rgba(0, 0, 0, .55);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s var(--ease);
  }
  .site-header[data-open="true"] .cmd-nav,
  .cmd-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .cmd-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .cmd-nav__item { border-bottom: 1px solid var(--line-soft); }

  .cmd-nav__link {
    justify-content: flex-start;
    width: 100%;
    padding: 14px 4px 14px 6px;
    font-size: 15px;
  }
  .cmd-nav__link::after {
    left: 0; right: auto; bottom: 8px;
    width: 3px; height: auto;
    top: 10px; bottom: 10px;
    transform: scaleY(0);
    transform-origin: top center;
  }
  .cmd-nav__link:hover::after { transform: scaleY(.6); }
  .cmd-nav__link[aria-current="page"]::after { transform: scaleY(1); }
  .cmd-nav__idx { font-size: 10px; width: 22px; }
  .cmd-nav__dot { margin-left: auto; }

  .site-footer { margin-top: clamp(40px, 8vw, 72px); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-col--brand { grid-column: 1 / -1; }
  .footer-brand__note { max-width: none; }

  .split-main-rail { grid-template-columns: minmax(0, 1fr); }
  .rail-sticky { position: static; }

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

@media (max-width: 680px) {
  body { font-size: 15.5px; line-height: 27px; }

  .cmd-brand__mark { width: 32px; height: 32px; flex-basis: 32px; font-size: 11px; }
  .cmd-brand__name { font-size: 13.5px; }
  .cmd-cta__text { font-size: 11.5px; }
  .cmd-cta { padding: 8px 10px; gap: 5px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .footer-panel { padding: 20px 16px; }
  .footer-legal { flex-direction: column; align-items: flex-start; gap: 10px; }
  .footer-legal__links { gap: 10px 14px; }

  .grid--2, .grid--3 { grid-template-columns: minmax(0, 1fr); }
  .section__head { align-items: flex-start; }
}

@media (max-width: 420px) {
  .cmd-cta__arrow { display: none; }
  .nav-toggle__text { display: none; }
  .nav-toggle { padding: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .header-progress__bar { transition: none; }
}

@media print {
  .site-header, .nav-toggle, .header-progress, .skip-link { display: none !important; }
  body { background: #fff; color: #111; }
}