:root {
  --color-surface: #fbfbfb;
  --color-surface-alt: #f1f1f1;
  --color-surface-deep: #e3e3e3;
  --color-ink: #37322f;
  --color-ink-soft: #675f5b;
  --color-ink-muted: #837a76;
  --color-line: #d8d7d6;
  --color-primary: #ca4e17;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #f4e3db;
  --color-accent: #1378cd;
  --color-accent-ink: #ffffff;
  --color-highlight: #d1e3f3;
  --color-focus: #0873cf;
  --color-contrast-surface: #1b110d;
  --color-contrast-ink: #e7e5e4;
  --color-contrast-line: #48403c;
  --color-contrast-accent: #1688e9;
  --overlay-scrim: linear-gradient(180deg, rgba(27, 17, 13, 0.35) 0%, rgba(27, 17, 13, 0.72) 55%, rgba(27, 17, 13, 0.92) 100%);
  --font-heading: "Source Han Sans SC", "Noto Sans SC", SimHei, "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 8.7px;
  --text-sm: 13.1px;
  --text-base: 16px;
  --text-lg: 24.0px;
  --text-xl: 36.0px;
  --text-2xl: 54.0px;
  --text-3xl: 81.0px;
  --text-4xl: 121.5px;
  --text-display: clamp(58px, 12.0vw, 153px);
  --text-figure: clamp(48px, 8.6vw, 110px);
  --weight-heading: 850;
  --weight-body: 400;
  --leading-body: 1.62;
  --leading-heading: 1.2;
  --tracking-heading: -0.026em;
  --radius-sm: 5px;
  --radius-md: 5px;
  --radius-lg: 5px;
  --radius-pill: 5px;
  --border-thin: 2px;
  --border-thick: 3px;
  --shadow-1: 4px 4px 0 #37322f;
  --shadow-2: 8px 8px 0 #37322f;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1220px;
  --measure: 69ch;
  --gutter: 32px;
  --section-y: 75px;
  --section-y-lg: 105px;
}

/* ==========================================================================
   手机看台 /assets/site.css
   运动能量：斜切边界 · 橙蓝双主色 · 硬投影 · 记分牌数字
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 128px;
}

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 { display: block; max-width: 100%; }

button,
input,
select,
textarea { font: inherit; color: inherit; }

table { border-collapse: collapse; }

::selection {
  background: var(--color-highlight);
  color: var(--color-ink);
}

/* -------- 排版 -------- */
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;
}

h1 { font-size: clamp(var(--text-xl), 4.6vw, var(--text-2xl)); }
h2 { font-size: clamp(var(--text-lg), 3.2vw, var(--text-xl)); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-base); }
h5, h6 { font-size: var(--text-sm); }

p { margin: 0 0 var(--space-2); }

a {
  color: var(--color-accent);
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

a:hover { text-decoration-thickness: 3px; }

strong, b { font-weight: 700; }

code, kbd, samp, .mono, [data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

.wrap--wide { max-width: calc(var(--container) + 140px); }

.prose { max-width: var(--measure); }

.stack > * + * { margin-top: var(--space-3); }

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.grid--tight { gap: var(--space-2); }

.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; }

/* -------- 分节语言：粗线收口 + 印刷双线 -------- */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
  padding-top: var(--space-3);
  border-top: var(--border-thick) solid var(--color-ink);
  box-shadow: 0 -7px 0 -4px var(--color-primary);
}

.section-head > * { margin: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: var(--border-thick);
  background: var(--color-primary);
  transform: skewX(-26deg);
}

.rule-double {
  height: 6px;
  margin: var(--space-4) 0;
  border: 0;
  border-top: var(--border-thin) solid var(--color-ink);
  border-bottom: var(--border-thin) solid var(--color-ink);
  background: transparent;
}

/* -------- 斜切区块 -------- */
.slices {
  position: relative;
  padding-block: calc(var(--section-y) + 2.6vw);
  clip-path: polygon(0 0, 100% 2.6vw, 100% calc(100% - 2.6vw), 0 100%);
}

.slices--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.slices--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.slices--accent {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.slices--deep .rule-double {
  border-color: var(--color-contrast-line);
}

.slices--deep .eyebrow { color: var(--color-contrast-accent); }
.slices--deep .eyebrow::before { background: var(--color-contrast-accent); }

[data-shift] {
  transition: transform 150ms linear;
}

[data-shift]:hover {
  transform: translate(4px, -4px);
}

/* -------- 按钮 -------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: var(--tracking-heading);
  text-align: center;
  text-decoration: none;
  color: var(--color-ink);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform 140ms linear, box-shadow 140ms linear,
              background-color 140ms linear, color 140ms linear;
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-ink);
  text-decoration: none;
}

.btn:active {
  transform: translate(4px, 4px);
  box-shadow: 0 0 0 var(--color-ink);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.btn--accent {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-surface);
}

.btn--ghost {
  background: transparent;
  box-shadow: none;
}

.btn--ghost:hover {
  background: var(--color-highlight);
  box-shadow: var(--shadow-1);
}

.btn--sm {
  padding: 8px 14px;
  font-size: var(--text-sm);
}

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

/* -------- 标签 -------- */
.tag {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  background: var(--color-primary-soft);
  border: var(--border-thin) solid var(--color-ink);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color 140ms linear, color 140ms linear,
              transform 140ms linear, border-color 140ms linear;
}

.tag--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
  border-color: var(--color-primary);
}

.tag--accent {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
}

.tag--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-color: var(--color-contrast-line);
}

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

button.tag { cursor: pointer; }

button.tag:hover {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  transform: translate(2px, -2px);
}

/* -------- 卡片 -------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  transition: transform 150ms linear, box-shadow 150ms linear,
              border-color 150ms linear;
}

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

.card:hover,
.card:focus-within {
  transform: translate(-2px, -2px);
  border-color: var(--color-ink);
  box-shadow: var(--shadow-1);
}

.card__title {
  margin: 0;
  font-size: var(--text-lg);
}

.card__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.card__text {
  margin: 0;
  font-size: var(--text-base);
  color: var(--color-ink-soft);
}

/* -------- 图片容器（页面阶段放占位图） -------- */
.figure {
  position: relative;
  display: grid;
  gap: var(--space-2);
  margin: 0;
}

.figure__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-surface-deep);
  border: var(--border-thick) solid var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-2);
}

.figure__media > img,
.figure__media > picture,
.figure__media > picture > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--wide .figure__media { aspect-ratio: 21 / 9; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; }

.figure__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.figure__overlay {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: var(--space-3);
  color: var(--color-contrast-ink);
}

.figure__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 14px 6px 12px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-contrast-ink);
  background: var(--color-contrast-surface);
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
}

.figure__caption {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--color-ink-soft);
}

/* -------- 面包屑 -------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 0 0 var(--space-3);
  padding: 0;
  list-style: none;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.breadcrumb a {
  display: inline-block;
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: border-color 140ms linear, transform 140ms linear;
}

.breadcrumb a:hover {
  border-bottom-color: var(--color-accent);
  transform: translateX(2px);
}

.breadcrumb__sep {
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-ink);
  font-weight: 700;
}

/* -------- 数据表 -------- */
.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 660px;
  font-size: var(--text-sm);
}

.data-table caption {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  white-space: nowrap;
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  background: var(--color-surface-deep);
  border-bottom: var(--border-thick) solid var(--color-ink);
}

.data-table tbody tr:nth-child(even) { background: var(--color-surface-alt); }

.data-table tbody tr:hover { background: var(--color-highlight); }

.data-table .num,
.data-table [data-num] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  white-space: nowrap;
}

.data-table__group th {
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  background: var(--color-surface-deep);
  border-top: var(--border-thick) solid var(--color-ink);
}

/* -------- 旁注强调 -------- */
.pull-quote {
  margin: var(--space-4) 0;
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.pull-quote::before { content: "「"; color: var(--color-primary); }
.pull-quote::after { content: "」"; color: var(--color-primary); }

/* ==========================================================================
   头部
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--color-surface) 90%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 0 var(--color-ink);
  transition: box-shadow 160ms linear;
}

.site-header[data-stuck] {
  box-shadow: 0 3px 0 var(--color-contrast-surface), 0 8px 0 -4px var(--color-primary);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 14px var(--space-3);
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  flex: 0 0 auto;
  color: var(--color-ink);
  text-decoration: none;
  transition: transform 140ms linear;
}

.brand:hover { transform: translateX(2px); }

.brand-mark {
  position: relative;
  display: block;
  padding-left: 15px;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1.05;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.brand-mark::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.14em;
  width: 7px;
  height: 0.8em;
  background: var(--color-primary);
  transform: skewX(-20deg);
}

.brand-tag {
  display: block;
  padding-left: 15px;
  font-size: var(--text-sm);
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--color-ink-muted);
}

.site-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item { list-style: none; }

.nav-link {
  display: inline-block;
  padding: 9px 14px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: var(--tracking-heading);
  white-space: nowrap;
  text-decoration: none;
  color: var(--color-ink);
  background: transparent;
  border: var(--border-thin) solid transparent;
  border-radius: var(--radius-pill);
  transition: color 140ms linear, background-color 140ms linear,
              border-color 140ms linear, transform 140ms linear,
              box-shadow 140ms linear;
}

.nav-link:hover {
  color: var(--color-ink);
  background: var(--color-highlight);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.nav-link[aria-current="page"] {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-1);
}

.nav-link[aria-current="page"]:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-ink);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border: var(--border-thin) solid var(--color-contrast-surface);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-1);
  cursor: pointer;
  transition: transform 140ms linear, box-shadow 140ms linear;
}

.nav-toggle:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--color-ink);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform 140ms linear, top 140ms linear, opacity 140ms linear;
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

.header-ticker {
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.header-ticker__inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 8px var(--space-3);
  font-size: var(--text-sm);
  overflow-x: auto;
  scrollbar-width: none;
  transition: padding 160ms linear;
}

.header-ticker__inner::-webkit-scrollbar { display: none; }

.site-header[data-stuck] .header-ticker__inner {
  padding-top: 3px;
  padding-bottom: 3px;
}

.ticker-cell {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.ticker-key {
  color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent);
}

.ticker-val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--color-contrast-accent);
}

.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -80px;
  z-index: 90;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border: var(--border-thin) solid var(--color-contrast-surface);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: top 140ms linear;
}

.skip-link:focus {
  top: var(--space-2);
}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: var(--section-y-lg);
  padding-top: calc(3.4vw + var(--space-8));
  padding-bottom: var(--space-6);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  clip-path: polygon(0 3.4vw, 100% 0, 100% 100%, 0 100%);
}

.footer-wordmark {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  width: 100%;
  max-width: var(--container);
  margin: 0 auto var(--space-6);
  padding-inline: var(--space-3);
}

.footer-wordmark__text {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 15vw, var(--text-4xl));
  font-weight: var(--weight-heading);
  line-height: 0.92;
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary);
  padding-bottom: 0.06em;
}

.footer-wordmark {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 1.6vw), 0 100%);
  padding-bottom: 1.6vw;
}

.footer-wordmark__sub {
  padding-bottom: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--color-contrast-ink) 52%, transparent);
}

.footer-body { padding-top: 0; }

.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr 1.3fr;
  gap: var(--gutter);
  padding-top: var(--space-6);
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

.footer-grid::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 7px;
  height: var(--border-thin);
  background: var(--color-contrast-line);
}

.footer-col__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--color-contrast-accent);
}

.footer-list {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-list a {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 140ms linear, border-color 140ms linear, transform 140ms linear;
}

.footer-list a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  transform: translateX(2px);
}

.footer-contact {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-contact__row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.footer-contact__val {
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
  word-break: break-word;
}

.footer-note {
  max-width: 46ch;
  margin: var(--space-3) 0 var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.55;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}

.footer-cta { margin: 0; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 64%, transparent);
}

.footer-legal__line { margin: 0; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4) var(--gutter);
  }
  .footer-col:last-child { grid-column: 1 / -1; }
}

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

  .site-nav {
    position: absolute;
    z-index: 12;
    left: var(--space-3);
    right: var(--space-3);
    top: calc(100% - 8px);
    display: none;
    margin-left: 0;
    padding: var(--space-2);
    background: var(--color-surface);
    border: var(--border-thick) solid var(--color-ink);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-2);
  }

  .site-nav[data-open] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    display: block;
    padding: 12px 14px;
    font-size: var(--text-base);
    border-radius: var(--radius-sm);
  }

  .nav-link:hover { transform: none; }

  .grid { gap: var(--space-3); }

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

  .section-head {
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
  }
}

@media (max-width: 720px) {
  .ticker-cell--wide { display: none; }

  .footer-wordmark__text { font-size: clamp(var(--text-xl), 17vw, var(--text-2xl)); }
}

@media (max-width: 640px) {
  .wrap { padding-inline: var(--space-2); }
  .header-inner { padding: 12px var(--space-2); gap: var(--space-2); }
  .header-ticker__inner { padding: 7px var(--space-2); gap: var(--space-3); }
  .site-nav { left: var(--space-2); right: var(--space-2); }
  .footer-wordmark { padding-inline: var(--space-2); }
  .footer-grid { grid-template-columns: minmax(0, 1fr); padding-top: var(--space-4); }
  .footer-col:last-child { grid-column: auto; }
  .section { padding-block: var(--space-6); }
  .slices { padding-block: calc(var(--space-6) + 4vw); }
}

/* ==========================================================================
   可访问性
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
  }

  [data-shift]:hover { transform: none; }
  .card:hover, .card:focus-within { transform: none; }
  .btn:hover, .btn:active { transform: none; }
  .nav-link:hover, .nav-link[aria-current="page"]:hover { transform: none; }
  .brand:hover, .footer-list a:hover, .breadcrumb a:hover { transform: none; }
}