/* ============================================================
   旺财智造园 · /assets/site.css
   复古出版色体系 + 精密网格 + 紧凑命令栏
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 96px;
}

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

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

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

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

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

table { border-collapse: collapse; }

/* ---------- 2. Tokens ---------- */
:root {
  --cinnabar: #B22D26;
  --cinnabar-d: #8E211C;
  --gilt: #C08A34;
  --ink: #1F352C;
  --ink-2: #16261F;
  --paper: #F6F1E6;
  --kraft: #E8DCC6;
  --brown: #211A15;
  --mute: #6E6156;
  --copper: #A66B3F;
  --silver: #98A0A6;
  --gold: #D4A017;
  --ind-brick: #A8523F;
  --ind-ochre: #B08A4A;
  --ind-dai: #5B7263;
  --ind-indigo: #4A6478;
  --ind-violet: #6E5C72;
  --ind-sand: #8A7A5C;

  --hair: rgba(33, 26, 21, 0.16);
  --hair-strong: rgba(33, 26, 21, 0.34);
  --hair-paper: rgba(246, 241, 230, 0.16);
  --hair-paper-strong: rgba(246, 241, 230, 0.3);

  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "Barlow Condensed", "Roboto Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1280px;
  --gut: clamp(18px, 4vw, 44px);
  --cmdbar-h: 104px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 3. Base / 中文排版 ---------- */
body {
  background-color: var(--paper);
  color: var(--brown);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.85;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

::selection { background: var(--cinnabar); color: var(--paper); }

p + p { margin-top: 1.2em; }

strong, b { font-weight: 700; }

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

.site-footer :focus-visible,
.site-nav :focus-visible,
.section--ink :focus-visible {
  outline-color: var(--gilt);
}

#main-content { display: block; }

/* ---------- 4. Typography helpers ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--brown);
}

.h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.h3 {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 32px);
  line-height: 1.35;
}

.lede {
  font-size: clamp(17px, 1.4vw, 20px);
  line-height: 1.8;
  color: var(--mute);
  max-width: 62ch;
}

.note {
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

.label {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--mute);
}

.num {
  font-family: var(--font-num);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

.kpi__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(48px, 7vw, 130px);
  line-height: 0.92;
  letter-spacing: 0.02em;
  color: var(--brown);
}
.kpi__num--red { color: var(--cinnabar); }
.kpi__num--gilt { color: var(--gilt); }

.kpi__unit {
  font-size: 0.28em;
  letter-spacing: 0.14em;
  color: var(--mute);
  margin-left: 0.4em;
}

.hr {
  height: 1px;
  border: 0;
  background: var(--hair);
  margin-block: clamp(20px, 3vw, 36px);
}

/* ---------- 5. Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section { padding-block: clamp(48px, 7vw, 96px); }
.section--kraft { background: var(--kraft); }
.section--ink {
  background: var(--ink);
  color: rgba(246, 241, 230, 0.84);
}
.section--ink .h2,
.section--ink .display { color: var(--paper); }
.section--ink .lede,
.section--ink .note,
.section--ink .label { color: rgba(246, 241, 230, 0.62); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 28px);
}

.cell { grid-column: span 12; min-width: 0; }

@media (min-width: 900px) {
  .cell--full { grid-column: span 12; }
  .cell--main { grid-column: span 7; }
  .cell--half { grid-column: span 6; }
  .cell--third { grid-column: span 4; }
  .cell--note { grid-column: span 3; }
  .cell--push { grid-column-start: 5; }
}

/* Bento 信息板：以网格线拼接，而非卡片阴影 */
.bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  border-top: 1px solid var(--hair-strong);
  border-left: 1px solid var(--hair-strong);
}

.bento__cell {
  grid-column: span 12;
  min-width: 0;
  padding: clamp(18px, 2.4vw, 34px);
  border-right: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background: transparent;
}

.bento__cell--paper { background: var(--paper); }
.bento__cell--kraft { background: var(--kraft); }
.bento__cell--ink {
  background: var(--ink);
  color: rgba(246, 241, 230, 0.84);
  border-right-color: var(--hair-paper);
  border-bottom-color: var(--hair-paper);
}
.bento__cell--ink .h3,
.bento__cell--ink .kpi__num { color: var(--paper); }
.bento__cell--tall { grid-row: span 2; }

@media (min-width: 760px) {
  .bento__cell { grid-column: span 6; }
  .bento__cell--wide { grid-column: span 8; }
  .bento__cell--main { grid-column: span 7; }
  .bento__cell--note { grid-column: span 4; }
  .bento__cell--slim { grid-column: span 3; }
  .bento__cell--full { grid-column: span 12; }
}

/* ---------- 6. 版块标题（年份/编号锚点） ---------- */
.sec-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px clamp(16px, 2.4vw, 32px);
  padding-bottom: clamp(16px, 2vw, 26px);
  border-bottom: 1px solid var(--hair-strong);
  margin-bottom: clamp(24px, 3.4vw, 48px);
}

.sec-head__idx {
  font-family: var(--font-num);
  font-size: clamp(30px, 4.4vw, 60px);
  line-height: 0.9;
  color: var(--cinnabar);
  letter-spacing: 0.02em;
}

.sec-head__title { flex: 1 1 auto; }

.sec-head__note {
  flex: 1 1 260px;
  font-size: 13px;
  color: var(--mute);
  line-height: 1.8;
}

/* ---------- 7. 按钮 / 标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--hair-strong);
  background: transparent;
  color: var(--brown);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.2;
  border-radius: 0;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

.btn:hover { border-color: var(--gilt); background: var(--kraft); }

.btn--primary {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}
.btn--primary:hover {
  background: var(--cinnabar-d);
  border-color: var(--cinnabar-d);
  color: var(--paper);
}

.btn--gilt {
  border-color: var(--gilt);
  color: var(--brown);
}
.btn--gilt:hover { background: var(--gilt); color: var(--brown); }

.btn--ink {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.btn--ink:hover { background: var(--ink-2); border-color: var(--ink-2); color: var(--paper); }

.btn--block { width: 100%; }

.tag {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--hair-strong);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mute);
  white-space: nowrap;
}
.tag--red { border-color: var(--cinnabar); color: var(--cinnabar); }
.tag--gilt { border-color: var(--gilt); color: var(--gilt); }

.card {
  border: 1px solid var(--hair-strong);
  background: var(--paper);
  padding: clamp(18px, 2.2vw, 30px);
}
.card--kraft { background: var(--kraft); }
.card--ink { background: var(--ink); color: rgba(246, 241, 230, 0.84); border-color: var(--ink); }
.card--ink .h3 { color: var(--paper); }
.card:hover { border-color: var(--brown); }

/* ---------- 8. 面包屑 ---------- */
.breadcrumbs {
  padding-block: 18px;
  border-bottom: 1px solid var(--hair);
}
.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--mute);
}
.breadcrumbs li + li::before {
  content: "／";
  margin-right: 8px;
  color: var(--hair-strong);
}
.breadcrumbs a:hover { color: var(--cinnabar); }

/* ---------- 9. 年份刻度（跨页视觉母题） ---------- */
.yearscale {
  display: flex;
  align-items: flex-end;
  gap: clamp(10px, 1.6vw, 22px);
  font-family: var(--font-num);
  color: var(--mute);
}

.yearscale--mini {
  flex: 0 1 auto;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  max-width: 240px;
  overflow: hidden;
  transition: max-width 0.28s var(--ease), opacity 0.2s var(--ease);
}

.yearscale__start { color: var(--cinnabar); font-weight: 600; }
.yearscale__end { color: var(--brown); font-weight: 600; }

.yearscale__track {
  display: flex;
  flex: 1 1 auto;
  align-items: flex-end;
  gap: 3px;
  height: 16px;
  min-width: 40px;
}
.yearscale__track i {
  display: block;
  flex: 1 1 auto;
  width: 1px;
  height: 6px;
  background: var(--hair-strong);
}
.yearscale__track i:nth-child(2) { height: 10px; }
.yearscale__track i:nth-child(3) { height: 7px; }
.yearscale__track i:nth-child(4) { height: 13px; }
.yearscale__track i:nth-child(5) { height: 8px; }
.yearscale__track i:nth-child(6) { height: 11px; }
.yearscale__track i:nth-child(7) { height: 6px; }
.yearscale__track i:nth-child(8) { height: 14px; }

.yearscale--large {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: end;
  gap: clamp(14px, 2vw, 30px);
  font-size: clamp(38px, 8vw, 120px);
  line-height: 0.9;
}
.yearscale--large .yearscale__track { height: clamp(28px, 5vw, 56px); gap: 6px; }
.yearscale--large .yearscale__track i { background: var(--hair); }
.yearscale--large .yearscale__track i:nth-child(4),
.yearscale--large .yearscale__track i:nth-child(8) { background: var(--cinnabar); }

/* ---------- 10. 纵向年份轴 / 横向产线带 ---------- */
.timeline {
  border-left: 1px solid var(--hair-strong);
  padding-left: clamp(18px, 2.4vw, 30px);
}
.timeline__item {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 40px);
}
.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(18px, 2.4vw, 30px) - 5px);
  top: 10px;
  width: 9px;
  height: 9px;
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px var(--paper);
}
.section--ink .timeline__item::before { box-shadow: 0 0 0 3px var(--ink); }

.timeline__year {
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 46px);
  line-height: 1;
  color: var(--brown);
  letter-spacing: 0.02em;
}

.lineband {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  border-top: 1px solid var(--hair-strong);
  border-bottom: 1px solid var(--hair-strong);
  overflow-x: auto;
}
.lineband__step {
  padding: clamp(14px, 1.8vw, 22px) clamp(14px, 1.6vw, 20px);
  border-right: 1px solid var(--hair);
  min-width: 150px;
}
.lineband__step:last-child { border-right: 0; }
.lineband__step-idx {
  display: block;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--cinnabar);
  margin-bottom: 8px;
}

/* ---------- 11. 档位与行业色标 ---------- */
.tier {
  --tier: var(--copper);
  border: 1px solid var(--hair-strong);
  background: var(--paper);
  padding: clamp(18px, 2.2vw, 28px);
}
.tier--copper { --tier: var(--copper); }
.tier--silver { --tier: var(--silver); }
.tier--gold { --tier: var(--gold); }

.tier__bar { height: 6px; background: var(--tier); margin-bottom: 18px; }
.tier__name {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--brown);
}
.tier--gold .tier__bar { background: repeating-linear-gradient(90deg, var(--gold) 0 8px, var(--paper) 8px 12px), var(--paper); border: 1px solid var(--gold); }

.swatch {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--mute);
}
.swatch::before {
  content: "";
  width: 12px;
  height: 12px;
  background: var(--swatch, var(--gilt));
  flex: 0 0 auto;
}
.swatch--brick { --swatch: var(--ind-brick); }
.swatch--ochre { --swatch: var(--ind-ochre); }
.swatch--dai { --swatch: var(--ind-dai); }
.swatch--indigo { --swatch: var(--ind-indigo); }
.swatch--violet { --swatch: var(--ind-violet); }
.swatch--sand { --swatch: var(--ind-sand); }

/* ---------- 12. 抽屉（问答 / 档案 / 规格） ---------- */
.drawer { border-bottom: 1px solid var(--hair); }

.drawer__trigger {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: clamp(16px, 2vw, 24px) 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.6;
  color: var(--brown);
  transition: color 0.18s var(--ease);
}
.drawer__trigger::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 1;
  color: var(--gilt);
  transition: color 0.18s var(--ease);
}
.drawer__trigger:hover { color: var(--cinnabar); }
.drawer__trigger[aria-expanded="true"] { color: var(--cinnabar); }
.drawer__trigger[aria-expanded="true"]::after { content: "－"; color: var(--cinnabar); }

.drawer__panel {
  height: 0;
  overflow: hidden;
  transition: height 0.26s var(--ease), background-color 0.26s var(--ease);
}
.drawer__panel[data-open] { background: rgba(232, 220, 198, 0.5); }
.drawer__panel > * { padding-inline: clamp(12px, 1.6vw, 22px); }
.drawer__panel > *:first-child { padding-top: 4px; }
.drawer__panel > *:last-child { padding-bottom: clamp(16px, 2vw, 26px); }

/* ---------- 13. 切换（档位 / 行业） ---------- */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--hair-strong);
  margin-bottom: clamp(20px, 2.6vw, 32px);
}

.tabs__btn {
  position: relative;
  padding: 12px clamp(12px, 1.6vw, 22px);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mute);
  border: 1px solid transparent;
  border-bottom: 0;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.tabs__btn:hover { color: var(--brown); background: var(--kraft); }
.tabs__btn[aria-selected="true"] {
  color: var(--brown);
  background: var(--paper);
  border-color: var(--hair-strong);
  padding-left: calc(clamp(12px, 1.6vw, 22px) + 8px);
  box-shadow: inset 3px 0 0 var(--cinnabar);
}
.tabs__btn[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--paper);
}

.tabs__panel[hidden] { display: none; }

/* ---------- 14. 图片容器基础规则（页面阶段放占位） ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--kraft);
  border: 1px solid var(--hair);
}
.media img,
.media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--3x2 { aspect-ratio: 3 / 2; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--plate { aspect-ratio: 5 / 2; }

.media__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: var(--brown);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: 0.12em;
}
.media__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* ============================================================
   15. 头部命令栏
   ============================================================ */
.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  padding: 12px 20px;
  background: var(--brown);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: 0.1em;
  transform: translateY(-140%);
  transition: transform 0.18s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--paper);
  border-top: 3px solid var(--cinnabar);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  width: 100%;
  height: 2px;
  background: var(--cinnabar);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.08s linear;
}

.cmdbar { position: relative; }

.cmdbar__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 28px);
}

/* 顶部信息条 */
.cmdbar__meta {
  background: var(--ink);
  color: rgba(246, 241, 230, 0.72);
  max-height: 44px;
  overflow: hidden;
  transition: max-height 0.28s var(--ease), opacity 0.2s var(--ease);
}
.cmdbar__meta .cmdbar__inner {
  height: 36px;
  justify-content: space-between;
  gap: 24px;
}
.cmdbar__tagline {
  font-size: 12px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cmdbar__duty {
  font-size: 12px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: rgba(246, 241, 230, 0.6);
}
.cmdbar__mail { color: var(--gilt); }

/* 主命令行 */
.cmdbar__main {
  background: var(--paper);
  border-bottom: 1px solid var(--hair-strong);
}
.cmdbar__main .cmdbar__inner { height: 70px; transition: height 0.28s var(--ease); }

.site-header[data-scrolled] .cmdbar__meta { max-height: 0; opacity: 0; }
.site-header[data-scrolled] .cmdbar__main .cmdbar__inner { height: 58px; }
.site-header[data-scrolled] .yearscale--mini { max-width: 0; opacity: 0; }

/* 品牌 */
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  padding-block: 4px;
}
.brand__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 2.2vw, 26px);
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--brown);
  transition: color 0.18s var(--ease);
}
.brand__suffix {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--cinnabar);
  border-left: 1px solid var(--hair-strong);
  padding-left: 10px;
}
.brand:hover .brand__mark { color: var(--cinnabar); }

/* 移动端栏目按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--hair-strong);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--brown);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease);
}
.nav-toggle__bars { display: grid; gap: 3px; width: 16px; }
.nav-toggle__bars i { display: block; height: 1.5px; background: var(--brown); }
.nav-toggle:hover { border-color: var(--gilt); }
.nav-toggle[aria-expanded="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i { background: var(--paper); }

/* 主导航（桌面） */
.site-nav { margin-left: auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.4vw, 22px);
}
.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 4px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--brown);
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}
.site-nav__idx {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
  transition: color 0.18s var(--ease);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1px;
  height: 2px;
  background: var(--cinnabar);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.18s var(--ease);
}
.site-nav__link:hover { color: var(--cinnabar); }
.site-nav__link:hover .site-nav__idx { color: var(--cinnabar); }
.site-nav__link:hover::after { transform: scaleX(1); }

.site-nav__link[aria-current="page"] {
  color: var(--brown);
  padding-left: 10px;
  box-shadow: inset 3px 0 0 var(--cinnabar);
}
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--cinnabar); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.site-nav__foot {
  display: none;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--hair-paper);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(246, 241, 230, 0.5);
}

/* 命令栏工具区 */
.cmdbar__tools {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.seeker {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 168px;
  padding: 6px 12px;
  border: 1px solid var(--hair-strong);
  transition: border-color 0.18s var(--ease), background-color 0.18s var(--ease);
}
.seeker__label {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--brown);
  transition: color 0.18s var(--ease);
}
.seeker__hint {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
  white-space: nowrap;
}
.seeker:hover { border-color: var(--gilt); background: var(--kraft); }
.seeker:hover .seeker__label { color: var(--cinnabar); }

.cmdbar__cta { padding: 11px 20px; font-size: 14px; }

/* ============================================================
   16. 页脚
   ============================================================ */
.site-footer {
  background: var(--ink);
  color: rgba(246, 241, 230, 0.78);
  border-top: 3px solid var(--cinnabar);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 44px);
  padding-block: clamp(44px, 6vw, 76px) clamp(28px, 4vw, 44px);
}

.footer__mark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.1;
  color: var(--paper);
  letter-spacing: 0.04em;
}
.footer__mark-sub {
  margin-left: 10px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--gilt);
  vertical-align: middle;
}
.footer__desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 241, 230, 0.72);
}
.footer__desc--mute { font-size: 13px; color: rgba(246, 241, 230, 0.5); }
.footer__badge {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 11px;
  border: 1px solid rgba(192, 138, 52, 0.55);
  color: var(--gilt);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.footer__col-title {
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--hair-paper);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--gilt);
}
.footer__list li + li { margin-top: 9px; }
.footer__list a {
  font-size: 14px;
  color: rgba(246, 241, 230, 0.74);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.footer__list a:hover {
  color: var(--paper);
  border-bottom-color: var(--cinnabar);
}

/* 旧版栏目档案横带 */
.footer__archive {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  align-items: center;
  gap: clamp(18px, 3vw, 40px);
  padding: clamp(20px, 3vw, 32px);
  margin-top: 8px;
  border: 1px dashed rgba(246, 241, 230, 0.26);
  background: rgba(246, 241, 230, 0.04);
}
.footer__archive-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.2;
  color: var(--paper);
}
.footer__archive-note {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(246, 241, 230, 0.58);
}

.archive-versions {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.archive-versions__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px;
  border: 1px solid rgba(246, 241, 230, 0.22);
  font-size: 13px;
  color: rgba(246, 241, 230, 0.78);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease),
    color 0.18s var(--ease);
}
.archive-versions__idx {
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--gilt);
}
.archive-versions__link:hover {
  background: rgba(178, 45, 38, 0.24);
  border-color: var(--cinnabar);
  color: var(--paper);
}

/* 联系信息带 */
.footer__contact {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
  margin-top: clamp(28px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--hair-paper);
}
.footer__field-label {
  display: block;
  margin-bottom: 8px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--gilt);
}
.footer__field-value {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 241, 230, 0.8);
  overflow-wrap: break-word;
}

/* 合规行 */
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 26px;
  margin-top: clamp(24px, 3vw, 36px);
  padding-block: 18px clamp(24px, 4vw, 36px);
  border-top: 1px solid var(--hair-paper);
  font-size: 12.5px;
  color: rgba(246, 241, 230, 0.56);
}
.footer__legal-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer__legal-links a { transition: color 0.18s var(--ease); }
.footer__legal-links a:hover { color: var(--paper); }
.footer__copy { letter-spacing: 0.04em; }

/* ============================================================
   17. 显现动效
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ============================================================
   18. 响应式
   ============================================================ */
@media (max-width: 1180px) {
  .yearscale--mini { display: none; }
}

@media (max-width: 1080px) {
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: span 2; }
  .footer__archive { grid-template-columns: 1fr; }
  .footer__contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1000px) {
  .seeker { display: none; }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--cmdbar-h, 104px);
    bottom: 0;
    z-index: 70;
    margin: 0;
    padding: 20px var(--gut) 48px;
    background: var(--ink);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
      visibility 0.22s linear;
  }
  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .site-nav__list { display: block; }
  .site-nav__item { border-bottom: 1px solid var(--hair-paper); }

  .site-nav__link {
    display: flex;
    width: 100%;
    align-items: baseline;
    gap: 14px;
    padding: 18px 8px;
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(19px, 5vw, 24px);
    letter-spacing: 0.04em;
    color: rgba(246, 241, 230, 0.86);
  }
  .site-nav__link::after { display: none; }
  .site-nav__link:hover { color: var(--paper); }
  .site-nav__idx { font-size: 12px; color: var(--gilt); }

  .site-nav__link[aria-current="page"] {
    color: var(--paper);
    padding-left: 16px;
    box-shadow: inset 3px 0 0 var(--cinnabar);
  }
  .site-nav__link[aria-current="page"] .site-nav__idx { color: var(--cinnabar); }

  .site-nav__foot { display: block; }

  .cmdbar__tools { margin-left: 0; }
  .cmdbar__cta { padding: 10px 14px; font-size: 13px; letter-spacing: 0.04em; }
}

@media (max-width: 860px) {
  .archive-versions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .cmdbar__meta { display: none; }
  .footer__legal { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .brand__suffix { display: none; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__brand { grid-column: span 1; }
  .footer__contact { grid-template-columns: 1fr; }
  .archive-versions { grid-template-columns: 1fr; }
  .cmdbar__main .cmdbar__inner { height: 62px; }
  .lineband { grid-auto-flow: row; grid-auto-columns: auto; }
  .lineband__step { border-right: 0; border-bottom: 1px solid var(--hair); }
  .lineband__step:last-child { border-bottom: 0; }
}

/* ============================================================
   19. 降低动效
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress { transition: none; }
  .site-nav { transition: none; }
}