:root {
  --color-surface: #ececea;
  --color-surface-alt: #e3e3e1;
  --color-surface-deep: #d7d7d4;
  --color-ink: #414134;
  --color-ink-soft: #656553;
  --color-ink-muted: #82826d;
  --color-line: #cdcdc9;
  --color-primary: #78782b;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #dcdccf;
  --color-accent: #9234cb;
  --color-accent-ink: #ffffff;
  --color-highlight: #dccbe4;
  --color-focus: #9528d7;
  --color-contrast-surface: #2a2a1b;
  --color-contrast-ink: #e7e7e4;
  --color-contrast-line: #545447;
  --color-contrast-accent: #b575db;
  --overlay-scrim: linear-gradient(180deg, rgba(42, 42, 27, 0.35) 0%, rgba(42, 42, 27, 0.72) 55%, rgba(42, 42, 27, 0.92) 100%);
  --font-heading: "Songti SC", "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 12.9px;
  --text-sm: 15.5px;
  --text-base: 17px;
  --text-lg: 20.4px;
  --text-xl: 24.5px;
  --text-2xl: 29.4px;
  --text-3xl: 35.3px;
  --text-4xl: 42.3px;
  --text-display: clamp(34px, 5.9vw, 76px);
  --text-figure: clamp(28px, 4.3vw, 55px);
  --weight-heading: 706;
  --weight-body: 400;
  --leading-body: 1.73;
  --leading-heading: 1.26;
  --tracking-heading: 0.003em;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 5px;
  --radius-pill: 5px;
  --border-thin: 2px;
  --border-thick: 3px;
  --shadow-1: 0 1px 0 rgba(65, 65, 52, 0.12);
  --shadow-2: 0 2px 0 rgba(65, 65, 52, 0.18);
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1200px;
  --measure: 69ch;
  --gutter: 16px;
  --section-y: 91px;
  --section-y-lg: 127px;
}

/* ============================================================
   1. 重置与中文排版
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 108px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: inherit;
}

p { margin: 0 0 var(--space-2); }
p:last-child { margin-bottom: 0; }
strong, b { font-weight: 700; }

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, currentColor 34%, transparent);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { text-decoration-color: currentColor; }

button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }

:where(ul[class], ol[class]) { margin: 0; padding: 0; list-style: none; }

::selection {
  background-color: color-mix(in srgb, var(--color-accent) 32%, transparent);
  color: var(--color-ink);
}

:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

#main-content { display: block; scroll-margin-top: 108px; }

/* ============================================================
   2. 布局基础
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.section--tight { padding-block: var(--space-6); }

.section--alt { background-color: var(--color-surface-alt); }

.section--deep {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  background-image: linear-gradient(0deg, rgba(231, 231, 228, 0.035) 1px, transparent 1px);
  background-size: 100% 4px;
}
.section--deep a { color: var(--color-contrast-ink); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-4) var(--gutter);
}
.grid--tight { gap: var(--space-2); }
.grid--block { gap: var(--space-6) var(--gutter); }

.col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-12 { grid-column: 1 / -1; }

@media (min-width: 840px) {
  .col-3 { grid-column: span 3; }
  .col-4 { grid-column: span 4; }
  .col-5 { grid-column: span 5; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-9 { grid-column: span 9; }
  .col-12 { grid-column: span 12; }
}

/* ============================================================
   3. 文字层级工具
   ============================================================ */
.h-display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.04;
  letter-spacing: 0.02em;
  margin: 0;
}
.h-section { font-size: var(--text-2xl); margin: 0; }
.h-sub { font-size: var(--text-lg); margin: 0; }
.text-lead { font-size: var(--text-lg); color: var(--color-ink-soft); max-width: var(--measure); }
.text-small { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.accent-text { color: var(--color-accent); }
.muted-text { color: var(--color-ink-muted); }

.figure-display {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

/* ============================================================
   4. 分隔与强调语言
   ============================================================ */
.section-head {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-primary);
}
.section-head__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-accent);
}
.section-head__title { font-size: var(--text-2xl); margin: 0; }
.section-head__lead { margin: 0; max-width: var(--measure); color: var(--color-ink-soft); }

.section--deep .section-head { border-top-color: var(--color-contrast-line); }
.section--deep .section-head__num { color: var(--color-contrast-accent); }
.section--deep .section-head__lead { color: var(--color-contrast-ink); opacity: 0.82; }

.divider-scale {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-block: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}
.divider-scale::before {
  content: "";
  width: 28px;
  height: var(--border-thick);
  background-color: var(--color-accent);
  flex: 0 0 auto;
}
.divider-scale::after {
  content: "";
  flex: 1;
  height: var(--border-thin);
  background-image: repeating-linear-gradient(90deg, var(--color-line) 0 10px, transparent 10px 18px);
}
.section--deep .divider-scale { color: var(--color-contrast-ink); opacity: 0.7; }
.section--deep .divider-scale::after {
  background-image: repeating-linear-gradient(90deg, var(--color-contrast-line) 0 10px, transparent 10px 18px);
}

.rail {
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}
.rail--accent { border-left-color: var(--color-accent); }
.rail--deep { border-left-color: var(--color-contrast-accent); }

/* ============================================================
   5. 正文容器
   ============================================================ */
.prose {
  max-width: var(--measure);
  color: var(--color-ink);
}
.prose > * + * { margin-top: var(--space-3); }
.prose h2 { font-size: var(--text-xl); margin: var(--space-6) 0 var(--space-2); }
.prose h3 { font-size: var(--text-lg); margin: var(--space-4) 0 var(--space-2); }
.prose p { margin: 0; }
.prose ul, .prose ol { padding-left: 1.4em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: var(--space-1); }
.prose blockquote {
  margin: 0;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-highlight);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
}
.prose a { color: var(--color-accent); text-decoration: underline; }
.prose a:hover { color: var(--color-focus); }

/* ============================================================
   6. 按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.16s ease, color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: color-mix(in srgb, var(--color-primary) 68%, var(--color-contrast-surface));
}
.btn--primary:hover { background-color: color-mix(in srgb, var(--color-primary) 84%, var(--color-contrast-surface)); }

.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: color-mix(in srgb, var(--color-accent) 68%, var(--color-contrast-surface));
}
.btn--accent:hover { background-color: color-mix(in srgb, var(--color-accent) 84%, var(--color-contrast-surface)); }

.btn--ghost {
  background-color: transparent;
  border-color: currentColor;
  color: inherit;
}
.btn--ghost:hover { background-color: color-mix(in srgb, currentColor 12%, transparent); }

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

/* ============================================================
   7. 面包屑
   ============================================================ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}
.breadcrumb a { text-decoration: none; color: inherit; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb__sep { opacity: 0.55; }

/* ============================================================
   8. 跳转链接与站点头部
   ============================================================ */
.skip-link {
  position: absolute;
  left: var(--space-2);
  top: -120px;
  z-index: 200;
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-contrast-surface);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  transition: top 0.16s ease;
}
.skip-link:focus { top: var(--space-2); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: color-mix(in srgb, var(--color-contrast-surface) 94%, transparent);
  color: var(--color-contrast-ink);
  border-bottom: var(--border-thick) solid var(--color-contrast-line);
  transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}
@supports (backdrop-filter: blur(6px)) {
  .site-header { backdrop-filter: blur(6px); }
}
.site-header.is-solid {
  background-color: var(--color-surface);
  color: var(--color-ink);
  border-bottom-color: var(--color-primary);
}
.site-header a { text-decoration: none; }

/* --- 赛季区间与轮次刻度 --- */
.season-bar {
  border-bottom: 1px solid color-mix(in srgb, currentColor 18%, transparent);
}
.season-bar__inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 32px;
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}
.season-bar__tag { white-space: nowrap; opacity: 0.88; }
.season-bar__tag b { letter-spacing: 0.02em; }
.season-bar__meta {
  margin-left: auto;
  white-space: nowrap;
  opacity: 0.66;
  font-family: var(--font-mono);
}
.round-scale {
  display: flex;
  gap: 2px;
  flex: 1 1 auto;
  max-width: 360px;
}
.round-scale__item {
  flex: 1 1 0;
  display: grid;
  place-items: center;
  padding: 1px 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  background-color: color-mix(in srgb, currentColor 14%, transparent);
  border-radius: var(--radius-sm);
  transition: background-color 0.16s ease, color 0.16s ease;
}
.round-scale__item.is-current {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}
.site-header.is-solid .round-scale__item.is-current { background-color: var(--color-accent); }

/* --- 品牌 --- */
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
  padding-block: var(--space-1);
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  border-radius: var(--radius-sm);
  box-shadow: inset 0 -3px 0 var(--color-accent);
}
.brand__text { display: flex; flex-direction: column; }
.brand__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.15;
}
.brand__sub {
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  opacity: 0.7;
  margin-top: 2px;
}

/* --- 栏目索引导航 --- */
.nav-toggle { display: none; }

.site-nav { margin-left: auto; }
.nav-index { display: flex; align-items: stretch; gap: 2px; }
.nav-index__item { display: flex; }
.nav-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  padding: var(--space-1) var(--space-2);
  border-left: var(--border-thick) solid transparent;
  border-radius: var(--radius-sm);
  transition: background-color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}
.nav-link:hover {
  background-color: color-mix(in srgb, currentColor 12%, transparent);
  border-left-color: var(--color-primary);
  transform: translateY(-1px);
}
.nav-index__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  opacity: 0.58;
}
.nav-index__label {
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
}
.nav-link[aria-current="page"] {
  border-left-color: var(--color-accent);
  background-color: color-mix(in srgb, var(--color-accent) 14%, transparent);
}
.nav-link[aria-current="page"] .nav-index__num { color: var(--color-accent); opacity: 1; }
.site-header.is-solid .nav-link[aria-current="page"] { background-color: var(--color-highlight); }
.site-header.is-solid .nav-link[aria-current="page"] .nav-index__num { color: var(--color-accent); }

/* --- 滚动进度 --- */
.scroll-progress {
  height: 2px;
  background-color: color-mix(in srgb, currentColor 12%, transparent);
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0;
  background-color: var(--color-accent);
}

/* ============================================================
   9. 站点页脚
   ============================================================ */
.site-footer {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thick) solid var(--color-primary);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  min-height: 58px;
  padding-block: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.02em;
}
.site-footer__brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  letter-spacing: 0.04em;
}
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
}
.site-footer__links a {
  padding-inline: 2px;
  text-decoration: none;
  color: var(--color-contrast-ink);
  opacity: 0.82;
  border-bottom: 1px solid transparent;
  transition: opacity 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}
.site-footer__links a:hover {
  opacity: 1;
  color: var(--color-contrast-accent);
  border-bottom-color: var(--color-contrast-accent);
}
.site-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  opacity: 0.62;
}
.site-footer__sep { opacity: 0.5; }

/* ============================================================
   10. 图片与展签容器
   ============================================================ */
.figure { margin: 0; position: relative; }
.figure__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface-deep);
}
.figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: var(--figure-ratio, 16 / 9);
}
.figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 4px var(--space-2);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  border-radius: 0 var(--radius-sm) 0 0;
}
.figure__caption {
  margin-top: var(--space-1);
  padding-left: var(--space-2);
  border-left: var(--border-thin) solid var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}
.figure--scrim .figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--overlay-scrim);
  pointer-events: none;
}
.figure--scrim .figure__tag { background-color: transparent; }
.figure--deep .figure__frame {
  border-color: var(--color-contrast-line);
  background-color: var(--color-contrast-surface);
}
.figure--deep .figure__caption { color: var(--color-contrast-ink); opacity: 0.7; border-left-color: var(--color-contrast-line); }

/* ============================================================
   11. 数据组件
   ============================================================ */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}
.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.data-table caption {
  caption-side: top;
  text-align: left;
  padding: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}
.data-table th {
  text-align: left;
  white-space: nowrap;
  padding: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thin) solid var(--color-primary);
}
.data-table td {
  padding: var(--space-2);
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
}
.data-table tbody tr:nth-child(odd) { background-color: var(--color-surface-deep); }
.data-table tbody tr:hover { background-color: var(--color-highlight); }
.data-table td.num, .data-table th.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 700; }
.data-table .is-highlight { color: var(--color-accent); font-weight: 700; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px var(--space-1);
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  line-height: 1.7;
}
.tag--accent { background-color: var(--color-accent); color: var(--color-accent-ink); }
.tag--outline {
  background-color: transparent;
  border: var(--border-thin) solid var(--color-line);
  color: var(--color-ink-soft);
}
.tag--deep {
  background-color: color-mix(in srgb, var(--color-contrast-accent) 26%, transparent);
  color: var(--color-contrast-ink);
}

.stat {
  display: grid;
  gap: 4px;
  padding: var(--space-3);
  background-color: var(--color-surface-alt);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-md);
}
.stat__figure {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat__unit {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}
.stat__note { font-size: var(--text-xs); color: var(--color-ink-soft); }
.stat--accent { border-left-color: var(--color-accent); }
.stat--accent .stat__figure { color: var(--color-accent); }
.stat--deep {
  background-color: color-mix(in srgb, var(--color-contrast-surface) 92%, var(--color-surface));
  color: var(--color-contrast-ink);
  border-left-color: var(--color-contrast-accent);
}
.stat--deep .stat__unit, .stat--deep .stat__note { color: var(--color-contrast-ink); opacity: 0.68; }
.stat--deep .stat__figure { color: var(--color-contrast-accent); }

.heat-bar {
  display: flex;
  height: var(--space-2);
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-deep);
}
.heat-bar__seg { display: block; height: 100%; flex: 1 1 0; }
.heat-bar__seg--low { background-color: var(--color-highlight); }
.heat-bar__seg--mid { background-color: var(--color-primary); }
.heat-bar__seg--high { background-color: var(--color-accent); }

/* ============================================================
   12. 目录 / 条目 / 标签页
   ============================================================ */
.toc {
  padding-top: var(--space-2);
  border-top: var(--border-thick) solid var(--color-primary);
}
.toc__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}
.toc__item a {
  display: block;
  padding: var(--space-1) var(--space-1) var(--space-1) var(--space-2);
  border-left: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: border-color 0.16s ease, color 0.16s ease, padding-left 0.16s ease;
}
.toc__item a:hover {
  border-left-color: var(--color-primary);
  color: var(--color-ink);
  padding-left: var(--space-3);
}
.toc__item a.is-active {
  border-left-color: var(--color-accent);
  color: var(--color-ink);
  font-weight: 600;
}

.entry-list {
  display: grid;
  gap: 0;
  border-top: var(--border-thin) solid var(--color-line);
}
.entry {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-3) var(--space-2);
  border-bottom: 1px solid var(--color-line);
  transition: background-color 0.16s ease;
}
.entry:hover, .entry:focus-within { background-color: color-mix(in srgb, var(--color-highlight) 55%, transparent); }
.entry__num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}
.entry__title { margin: 0 0 4px; font-family: var(--font-heading); font-size: var(--text-lg); }
.entry__desc { margin: 0; font-size: var(--text-sm); color: var(--color-ink-soft); }
.entry__meta { display: flex; flex-wrap: wrap; gap: var(--space-1); margin-top: var(--space-1); }
.entry__fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: var(--space-1) var(--space-2);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  transition: max-height 0.22s ease, opacity 0.22s ease, margin-top 0.22s ease;
}
.entry:hover .entry__fields, .entry:focus-within .entry__fields {
  max-height: 260px;
  opacity: 1;
  margin-top: var(--space-2);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  margin-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}
.tab {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink-soft);
  border-bottom: var(--border-thick) solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: color 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}
.tab:hover { color: var(--color-ink); background-color: var(--color-surface-alt); }
.tab[aria-selected="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  background-color: var(--color-surface-alt);
}
.panel[hidden] { display: none; }

/* ============================================================
   13. 色块 / 提示 / 键值
   ============================================================ */
.slab {
  padding: var(--space-4);
  background-color: var(--color-surface-alt);
  border-bottom: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-md);
}
.slab--mid {
  background-color: var(--color-surface-deep);
  border-bottom-color: var(--color-accent);
}
.slab--deep {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-bottom-color: var(--color-contrast-accent);
  background-image: linear-gradient(0deg, rgba(231, 231, 228, 0.035) 1px, transparent 1px);
  background-size: 100% 4px;
}

.callout {
  padding: var(--space-3);
  background-color: var(--color-highlight);
  border-left: var(--border-thick) solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}
.callout strong { color: var(--color-ink); }

.kv { display: grid; gap: 0; margin: 0; }
.kv__row {
  display: grid;
  grid-template-columns: minmax(88px, 150px) minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-line);
}
.kv__key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}
.kv__val { margin: 0; font-size: var(--text-sm); }

/* ============================================================
   14. 响应式
   ============================================================ */
@media (max-width: 1100px) {
  .season-bar__meta { display: none; }
  .round-scale { max-width: none; }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    margin-left: auto;
    padding: var(--space-1) var(--space-2);
    border: var(--border-thin) solid color-mix(in srgb, currentColor 45%, transparent);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    letter-spacing: 0.08em;
    transition: border-color 0.16s ease, color 0.16s ease;
  }
  .nav-toggle[data-open] {
    border-color: var(--color-accent);
    color: var(--color-accent);
  }
  .nav-toggle__bars {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 16px;
    height: 11px;
  }
  .nav-toggle__bars i {
    display: block;
    height: var(--border-thin);
    background-color: currentColor;
    border-radius: 1px;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    margin-left: 0;
    max-height: calc(100vh - 110px);
    overflow-y: auto;
    background-color: var(--color-contrast-surface);
    color: var(--color-contrast-ink);
    border-bottom: var(--border-thick) solid var(--color-primary);
    box-shadow: var(--shadow-2);
  }
  .site-nav[data-open] { display: block; }

  .nav-index { flex-direction: column; gap: 0; padding: var(--space-2) var(--space-3) var(--space-3); }
  .nav-index__item { display: block; }
  .nav-link {
    flex-direction: row;
    align-items: baseline;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-left: var(--border-thick) solid transparent;
    border-bottom: 1px solid color-mix(in srgb, currentColor 16%, transparent);
    border-radius: 0;
  }
  .nav-link:hover { transform: none; border-left-color: var(--color-primary); background-color: transparent; }
  .nav-index__label { font-size: var(--text-base); }
  .nav-link[aria-current="page"] { background-color: color-mix(in srgb, var(--color-accent) 18%, transparent); }
}

@media (max-width: 720px) {
  .season-bar__inner { gap: var(--space-1); }
  .round-scale__item { font-size: 11px; }
  .brand__sub { display: none; }
  .site-header__inner { min-height: 58px; }
  .section-head { margin-bottom: var(--space-4); }
  .entry { grid-template-columns: 40px minmax(0, 1fr); padding-inline: 0; }
  .kv__row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

@media (max-width: 820px) {
  .site-footer__meta { margin-left: 0; width: 100%; }
}

/* ============================================================
   15. 动效降级
   ============================================================ */
@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;
  }
  .btn:hover, .nav-link:hover { transform: none; }
  .entry__fields { transition: none; }
}