/* ============================================================
   新普金娱乐 · 共享样式 /assets/site.css
   夜间档案室 · 框架式导航 · 时间刻度语言
   ============================================================ */

:root {
  --ink-900: #0E1730;
  --ink-800: #16244C;
  --ink-750: #1B2B57;
  --gold-700: #A8863C;
  --gold-400: #D8B063;
  --jade: #2CB49A;
  --paper: #EFE9E0;
  --warm-mid: #C6BEB1;
  --paper-light: #F6F2EA;
  --note-blue: #7C89B4;
  --rust: #A6402E;

  --rail-w: 244px;
  --maxw: 1220px;
  --header-h: 62px;

  --font-display: "Arial Narrow", "Roboto Condensed", "Helvetica Neue", -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --r: 2px;
  --dur: 220ms;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --line-gold: 1px solid rgba(168, 134, 60, .45);
  --line-soft: 1px solid rgba(198, 190, 177, .16);
}

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

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

body {
  margin: 0;
  padding-left: var(--rail-w);
  min-height: 100vh;
  background: var(--ink-900);
  color: var(--paper-light);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, svg, video { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
table { border-collapse: collapse; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--gold-700); color: var(--ink-900); }

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

/* ---------- 排版基础 ---------- */
.num,
[data-archive-week],
.utility-item__value,
.footer__legal-line,
.contact-list__value--mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
}

.note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--note-blue);
  letter-spacing: .02em;
}

.hairline {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, rgba(168, 134, 60, .6), rgba(168, 134, 60, 0));
}

/* ---------- 跳转链接 ---------- */
.skip-link {
  position: absolute;
  top: 0;
  left: -9999px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--gold-400);
  color: var(--ink-900);
  font-size: 14px;
  letter-spacing: .04em;
}
.skip-link:focus { left: 0; }

/* ---------- 头部：框架式导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  background: var(--ink-900);
  background-image: linear-gradient(180deg, rgba(22, 36, 76, .75), rgba(14, 23, 48, 0) 42%);
  border-right: 1px solid rgba(168, 134, 60, .45);
}

.rail {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  padding: 30px 24px 22px;
  overflow-y: auto;
  overflow-x: hidden;
}

.rail__brand {
  display: block;
  padding-bottom: 20px;
  border-bottom: var(--line-soft);
}
.rail__brand-name {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--paper-light);
}
.rail__brand-line {
  display: block;
  margin-top: 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--gold-400);
}

.rail__badge { display: none; }
.rail__badge-label { color: var(--note-blue); }
.rail__badge-value { color: var(--gold-400); }

.nav-toggle { display: none; }
.nav-toggle__text { letter-spacing: .08em; }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 1px;
  background: currentColor;
}
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 18px;
  height: 1px;
  background: currentColor;
}

.rail__nav {
  display: block;
  flex: 0 0 auto;
  margin-top: 26px;
  padding-top: 20px;
  border-top: var(--line-soft);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-list__item { display: block; }

.nav-list__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0 12px 2px;
  font-size: 15.5px;
  letter-spacing: .02em;
  color: rgba(246, 242, 234, .74);
  border-bottom: 1px solid rgba(198, 190, 177, .12);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.nav-list__link:hover { color: var(--gold-400); padding-left: 10px; }
.nav-list__link[aria-current="page"] {
  color: var(--paper-light);
  padding-left: 10px;
  box-shadow: inset 3px 0 0 0 var(--jade);
}
.nav-list__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold-700);
  transition: color var(--dur) var(--ease);
}
.nav-list__link[aria-current="page"] .nav-list__index { color: var(--jade); }

.rail__utility {
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px solid rgba(168, 134, 60, .4);
}
.utility-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.utility-item { display: block; }
.utility-list__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--note-blue);
  margin-bottom: 4px;
}
.utility-item__value {
  display: block;
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--gold-400);
}
.utility-item__link {
  display: inline-block;
  font-size: 14px;
  color: var(--paper-light);
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(168, 134, 60, .6);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.utility-item__link:hover,
.utility-item__link:focus-visible {
  color: var(--jade);
  border-color: var(--jade);
}

.scroll-meter {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: rgba(198, 190, 177, .12);
  pointer-events: none;
}
.scroll-meter__fill {
  display: block;
  width: 100%;
  height: calc(var(--read, 0) * 100%);
  background: linear-gradient(180deg, var(--jade), var(--gold-400));
  transition: height 140ms linear, width 140ms linear;
}

/* ---------- 页脚：抽屉底面 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(72px, 9vw, 140px);
  padding: clamp(44px, 6vw, 76px) 0 clamp(26px, 3vw, 40px);
  background: var(--ink-800);
  color: rgba(246, 242, 234, .8);
  border-top: 1px solid rgba(168, 134, 60, .5);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background-image: repeating-linear-gradient(90deg, rgba(216, 176, 99, .85) 0 1px, transparent 1px 16px);
  opacity: .8;
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 4vw, 56px);
}

.footer__brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: .01em;
  color: var(--paper-light);
}
.footer__brand-line {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--warm-mid);
}

.contact-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}
.contact-list__item { display: block; }
.contact-list__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--note-blue);
  margin-bottom: 3px;
}
.contact-list__value {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-light);
  word-break: break-word;
}

.footer__columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.footer-col { display: block; }
.footer-col__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-400);
}
.footer-col__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.footer-col__item { display: block; }
.footer-col__link {
  font-size: 14.5px;
  color: rgba(246, 242, 234, .82);
  padding-bottom: 1px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.footer-col__link:hover,
.footer-col__link:focus-visible {
  color: var(--gold-400);
  border-color: rgba(216, 176, 99, .6);
}
.footer-col__link[aria-current="page"] {
  color: var(--jade);
  border-color: rgba(44, 180, 154, .6);
}

.footer__note {
  margin-top: clamp(30px, 4vw, 48px);
  max-width: 76ch;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--note-blue);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid rgba(198, 190, 177, .18);
  font-size: 12.5px;
  color: var(--warm-mid);
}
.footer__legal-line { font-size: 12.5px; color: var(--gold-400); }
.footer__copyright { letter-spacing: .03em; }

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 15px;
  background: transparent;
  border: 1px solid rgba(168, 134, 60, .55);
  border-radius: var(--r);
  color: var(--gold-400);
  font-size: 12.5px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.to-top:hover,
.to-top:focus-visible {
  background: rgba(216, 176, 99, .12);
  border-color: var(--gold-400);
  color: var(--paper-light);
}
.to-top__ticks {
  display: block;
  width: 22px;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 4px);
}
.to-top__text { white-space: nowrap; }
.to-top.is-rewinding .to-top__ticks { animation: tick-rewind 480ms var(--ease); }

@keyframes tick-rewind {
  0% { transform: scaleX(1); opacity: 1; }
  45% { transform: scaleX(.18); opacity: .45; }
  100% { transform: scaleX(1); opacity: 1; }
}

/* ---------- 版心与网格 ---------- */
.wrap {
  width: min(100% - 56px, var(--maxw));
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

/* ---------- 章节 ---------- */
.section {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px);
}
.section--ink { background: var(--ink-800); }
.section--paper {
  background: var(--paper);
  color: #232833;
}
.section--paper .section__title { color: var(--ink-900); }
.section--paper .section__lede { color: #4a4f59; }
.section--paper .section__kicker { color: var(--gold-700); }
.section--paper .section__meta { color: #6b7080; }

.section__head {
  max-width: 74ch;
  margin-bottom: clamp(24px, 3.4vw, 44px);
}
.section__kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--jade);
  margin-bottom: 14px;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -.005em;
  color: var(--paper-light);
  max-width: 22ch;
}
.section__lede {
  margin-top: 16px;
  max-width: 62ch;
  font-size: 17px;
  color: rgba(246, 242, 234, .74);
}
.section__meta {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--note-blue);
}

/* ---------- 面板 ---------- */
.plate {
  padding: clamp(20px, 2.4vw, 32px);
  background: var(--ink-800);
  border-left: 2px solid rgba(168, 134, 60, .55);
  border-radius: var(--r);
}
.plate--ink { background: var(--ink-900); }
.plate--paper {
  background: var(--paper);
  color: #232833;
  border-left-color: var(--gold-700);
}
.plate__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 20px;
  margin-bottom: 16px;
}
.plate__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .01em;
}
.plate__body {
  font-size: 15.5px;
  line-height: 1.8;
  color: inherit;
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid rgba(198, 190, 177, .5);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--warm-mid);
  white-space: nowrap;
}
.tag--gold { border-color: rgba(216, 176, 99, .7); color: var(--gold-400); }
.tag--jade { border-color: rgba(44, 180, 154, .7); color: var(--jade); }
.tag--rust { border-color: rgba(166, 64, 46, .85); color: #D98D7C; }

/* ---------- 键值面板 ---------- */
.kv {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
}
.kv__item {
  padding-top: 10px;
  border-top: 1px solid rgba(168, 134, 60, .4);
}
.kv__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--note-blue);
}
.kv__value {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: .06em;
  color: var(--gold-400);
}

/* ---------- 账目表 ---------- */
.ledger {
  background: var(--paper);
  color: #1b1f28;
  border: 1px solid rgba(168, 134, 60, .5);
  border-radius: var(--r);
  overflow: hidden;
}
.ledger__caption {
  display: block;
  padding: 14px 18px;
  background: rgba(255, 255, 255, .38);
  border-bottom: 1px solid rgba(27, 31, 40, .12);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: #4b4f57;
}
.ledger__scroll { overflow-x: auto; }
.ledger__table {
  width: 100%;
  font-size: 15px;
}
.ledger__table th,
.ledger__table td {
  padding: 11px 18px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid rgba(27, 31, 40, .1);
}
.ledger__table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: #5a5f68;
}
.ledger__table td { color: #1b1f28; }
.ledger__table td.num { font-size: 15px; }
.ledger__table tbody tr {
  transition: background-color 120ms linear, box-shadow 120ms linear;
}
.ledger__table tbody tr:hover {
  background: rgba(216, 176, 99, .14);
  box-shadow: inset 3px 0 0 0 var(--gold-400);
}
.ledger__table tbody tr[data-diff="true"] { box-shadow: inset 3px 0 0 0 var(--rust); }
.ledger__table tbody tr[data-diff="true"]:hover { box-shadow: inset 3px 0 0 0 var(--rust); }

/* ---------- 刻度条 ---------- */
.tick-strip {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 56px;
}
.tick-strip__item {
  flex: 1 1 0;
  min-width: 3px;
  height: var(--h, 40%);
  background: rgba(198, 190, 177, .32);
}
.tick-strip__item--now { background: var(--jade); }
.tick-strip__item--warm { background: var(--gold-400); }
.tick-strip__label {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--note-blue);
}

/* ---------- 图形容器 ---------- */
.figure { margin: 0; }
.figure__frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(168, 134, 60, .4);
  border-radius: var(--r);
  background:
    linear-gradient(140deg, rgba(22, 36, 76, .95), rgba(14, 23, 48, .98));
}
.figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(216, 176, 99, .12) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(0deg, rgba(216, 176, 99, .08) 0 1px, transparent 1px 30px);
}
.figure__media {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--note-blue);
}
.figure--wide .figure__frame { aspect-ratio: 21 / 9; }
.figure--tall .figure__frame { aspect-ratio: 3 / 4; }
.figure--square .figure__frame { aspect-ratio: 1 / 1; }

/* ---------- 档案标记 ---------- */
.archive-mark {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--note-blue);
}
.archive-mark__week { color: var(--gold-400); }
.archive-mark__type {
  padding: 2px 7px;
  border: 1px solid rgba(198, 190, 177, .35);
  border-radius: 1px;
}

/* ---------- 索引 ---------- */
.toc {
  position: sticky;
  top: 32px;
  padding-left: 18px;
  border-left: 1px solid rgba(168, 134, 60, .35);
}
.toc__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-400);
}
.toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.toc__item { display: block; }
.toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 13.5px;
  color: var(--warm-mid);
  transition: color var(--dur) var(--ease);
}
.toc__link:hover { color: var(--paper-light); }
.toc__link[aria-current="true"] { color: var(--jade); }
.toc__tick {
  flex: 0 0 auto;
  width: 10px;
  height: 1px;
  background: currentColor;
}

/* ---------- 正文 ---------- */
.prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(246, 242, 234, .86);
}
.prose p { margin-bottom: 1.2em; }
.prose h2 {
  margin: 2em 0 .6em;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--paper-light);
}
.prose ul, .prose ol { margin: 0 0 1.2em 1.1em; }
.prose li { margin-bottom: .4em; }
.prose a {
  color: var(--gold-400);
  border-bottom: 1px solid rgba(216, 176, 99, .5);
}
.prose--paper { color: #252a33; }
.prose--paper h2 { color: var(--ink-900); }
.prose--paper a { color: var(--gold-700); border-color: rgba(168, 134, 60, .5); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: transparent;
  border: 1px solid rgba(168, 134, 60, .65);
  border-radius: var(--r);
  color: var(--gold-400);
  font-size: 14.5px;
  letter-spacing: .04em;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.btn:hover,
.btn:focus-visible {
  background: rgba(216, 176, 99, .12);
  border-color: var(--gold-400);
  color: var(--paper-light);
}
.btn--gold {
  background: var(--gold-700);
  border-color: var(--gold-700);
  color: var(--ink-900);
  font-weight: 600;
}
.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--gold-400);
  border-color: var(--gold-400);
  color: var(--ink-900);
}
.btn--ghost {
  border-color: rgba(198, 190, 177, .4);
  color: var(--paper-light);
}
.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: transparent;
  border-color: var(--jade);
  color: var(--jade);
}

/* ---------- 面包屑 ---------- */
.breadcrumb { margin-bottom: 28px; }
.breadcrumb__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--note-blue);
}
.breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb__link {
  color: var(--note-blue);
  transition: color var(--dur) var(--ease);
}
.breadcrumb__link:hover { color: var(--gold-400); }
.breadcrumb__sep { color: rgba(124, 137, 180, .6); }
.breadcrumb__current { color: var(--warm-mid); }

/* ---------- 平板 ---------- */
@media (max-width: 1100px) {
  :root { --rail-w: 214px; }
  .rail { padding: 26px 18px 20px; }
  .rail__brand-name { font-size: 26px; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 移动端 ---------- */
@media (max-width: 900px) {
  body { padding-left: 0; }

  .site-header {
    position: sticky;
    top: 0;
    left: auto;
    right: auto;
    bottom: auto;
    width: auto;
    height: auto;
    min-height: var(--header-h);
    border-right: 0;
    border-bottom: 1px solid rgba(168, 134, 60, .45);
    background-image: linear-gradient(180deg, rgba(22, 36, 76, .8), rgba(14, 23, 48, .2));
  }

  .rail {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 18px;
    overflow: visible;
  }

  .rail__brand {
    flex: 1 1 auto;
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding-bottom: 0;
    border-bottom: 0;
  }
  .rail__brand-name { font-size: 20px; }
  .rail__brand-line { margin-top: 0; font-size: 10px; letter-spacing: .12em; }

  .rail__badge {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    padding: 4px 8px;
    border: 1px solid rgba(168, 134, 60, .45);
    border-radius: var(--r);
    font-family: var(--font-mono);
    font-size: 10.5px;
    letter-spacing: .1em;
    color: var(--gold-400);
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid rgba(168, 134, 60, .55);
    border-radius: var(--r);
    color: var(--gold-400);
    font-size: 13px;
    letter-spacing: .08em;
    cursor: pointer;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }
  .nav-toggle[aria-expanded="true"] {
    color: var(--jade);
    border-color: var(--jade);
  }

  .rail__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    margin: 0;
    padding: 10px 18px 22px;
    max-height: 72vh;
    overflow-y: auto;
    background: var(--ink-800);
    border-top: 1px solid rgba(168, 134, 60, .45);
    border-bottom: 1px solid rgba(168, 134, 60, .45);
    box-shadow: 0 26px 44px rgba(6, 10, 24, .68);
  }
  .rail__nav[data-open="false"] { display: none; }
  .rail__nav[data-open="true"] { display: block; }

  .nav-list__link { padding: 13px 0 13px 2px; font-size: 16px; }

  .rail__utility { display: none; }

  .scroll-meter {
    top: auto;
    left: 0;
    right: 0;
    bottom: -1px;
    width: auto;
    height: 2px;
  }
  .scroll-meter__fill {
    width: calc(var(--read, 0) * 100%);
    height: 100%;
    background: linear-gradient(90deg, var(--jade), var(--gold-400));
  }

  .wrap { width: calc(100% - 36px); }

  .grid--12 { grid-template-columns: 1fr; }
  .col-3, .col-4, .col-5, .col-7, .col-8, .col-12 { grid-column: 1 / -1; }

  .footer__columns { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
  .footer__legal { flex-direction: column; align-items: flex-start; }
  .toc { position: static; padding-left: 14px; }
  .ledger__table th, .ledger__table td { padding: 10px 14px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .rail__brand-line { display: none; }
  .footer__columns { grid-template-columns: 1fr; }
  .kv__value { font-size: 19px; }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}