/* ==========================================================================
   6t体育赛事 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 通用组件
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--bar-h) + 16px);
}

body, h1, h2, h3, h4, p, figure, blockquote, ol, ul, dl, dd { margin: 0; }
ol, ul { list-style: none; padding: 0; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; }
a { color: inherit; }
:where(a, button) { -webkit-tap-highlight-color: transparent; }

/* ---------- 变量 ---------- */
:root {
  --ink: #05090F;
  --deep: #0B1B2B;
  --lane: #17384F;
  --steel: #2A4A63;
  --bone: #E8E2D6;
  --stone: #B7AE9C;
  --orange: #FF6A13;
  --lime: #C6FF3D;
  --moss: #6E8B7A;
  --clay: #B4552F;

  --rail-w: 140px;
  --bar-h: 64px;
  --maxw: 1280px;
  --gutter: clamp(18px, 4vw, 48px);

  --font-head: Impact, "Archivo Black", Haettenschweiler, "Arial Black",
    "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", "SFMono-Regular", Menlo,
    Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

@media (min-width: 760px) {
  :root { --bar-h: 76px; }
}

/* ---------- 基础排版 ---------- */
body {
  min-height: 100%;
  background-color: var(--deep);
  background-image:
    radial-gradient(680px 420px at 82% -6%, rgba(255, 106, 19, 0.16), transparent 62%),
    radial-gradient(560px 380px at 4% 14%, rgba(198, 255, 61, 0.07), transparent 60%),
    radial-gradient(900px 620px at 50% 112%, rgba(23, 56, 79, 0.85), transparent 70%);
  background-repeat: no-repeat;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
}
h1 { font-size: clamp(33px, 5vw, 65px); }
h2 { font-size: clamp(26px, 3.4vw, 41px); }
h3 { font-size: clamp(21px, 2.2vw, 26px); }
h4 { font-size: clamp(17px, 1.6vw, 21px); letter-spacing: 0; }

p { max-width: 38em; }

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

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

#main-content {
  scroll-margin-top: calc(var(--bar-h) + 16px);
  display: block;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

/* ---------- 跳过导航 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  transform: translateY(-180%);
  padding: 10px 16px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 2px;
  transition: transform 0.18s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* ==========================================================================
   头部
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
}

.progress-rail {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 120;
  background: rgba(42, 74, 99, 0.35);
  pointer-events: none;
}
.progress-bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--orange), var(--lime));
}

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  height: var(--bar-h);
  padding-inline: var(--gutter);
  background: linear-gradient(180deg, rgba(11, 27, 43, 0.94), rgba(11, 27, 43, 0));
  border-bottom: 1px solid transparent;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.site-header[data-scrolled="true"] .header-bar,
.site-header[data-nav-open="true"] .header-bar {
  background: rgba(11, 27, 43, 0.97);
  border-bottom-color: var(--steel);
  box-shadow: 0 1px 0 rgba(198, 255, 61, 0.1);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  text-decoration: none;
  color: var(--bone);
  transition: color 0.16s var(--ease);
}
.brand:hover { color: var(--lime); }

.brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 12px;
  height: 32px;
  background: var(--orange);
  transform: skewX(-14deg);
}
.brand__mark::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: 0;
  width: 4px;
  height: 58%;
  background: var(--lime);
  transform: skewX(-14deg);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.01em;
}
.brand__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: 0.24em;
  color: var(--stone);
  text-transform: uppercase;
}
.brand:hover .brand__tagline { color: var(--lime); }

/* 头部信息条 */
.header-meta {
  display: none;
  align-items: center;
  gap: 9px;
  margin: 0;
  max-width: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
  white-space: nowrap;
}
.meta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 255, 61, 0.15);
}
.meta-key { color: var(--orange); }
.meta-val { color: var(--stone); }

.header-cta { flex: 0 0 auto; display: none; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.16s var(--ease), color 0.16s var(--ease),
    border-color 0.16s var(--ease), transform 0.16s var(--ease);
}
.btn--primary {
  background: var(--orange);
  color: #0A0E12;
  font-weight: 600;
}
.btn--primary::after {
  content: "→";
  font-size: 15px;
  line-height: 1;
}
.btn--primary:hover { background: #FF8038; transform: translateY(-1px); }
.btn--ghost {
  border-color: var(--steel);
  background: transparent;
  color: var(--bone);
}
.btn--ghost:hover { border-color: var(--lime); color: var(--lime); }
.btn--quiet {
  padding-inline: 4px;
  background: transparent;
  color: var(--stone);
}
.btn--quiet:hover { color: var(--lime); }

/* 移动菜单按钮 */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--steel);
  border-radius: 2px;
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}
.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }
.nav-toggle[aria-expanded="true"] { border-color: var(--orange); color: var(--orange); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.18s var(--ease), top 0.18s var(--ease);
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.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);
}

/* 导航：移动抽屉 */
.site-nav {
  position: fixed;
  top: var(--bar-h);
  bottom: 0;
  left: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  width: min(86vw, 340px);
  padding: 20px 18px 24px;
  overflow-y: auto;
  background: linear-gradient(180deg, #0B1B2B 0%, #071320 62%, #05090F 100%);
  border-right: 1px solid var(--steel);
  transform: translateX(-102%);
  visibility: hidden;
  transition: transform 0.28s var(--ease), visibility 0s linear 0.28s;
}
.site-nav[data-open="true"] {
  transform: none;
  visibility: visible;
  transition: transform 0.28s var(--ease), visibility 0s linear 0s;
}

.nav-scrim {
  position: fixed;
  top: var(--bar-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: rgba(5, 9, 15, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease);
}
.nav-scrim[data-open="true"] {
  opacity: 1;
  pointer-events: auto;
}

.nav-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--steel);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
}
.nav-head__count { color: var(--lime); letter-spacing: 0.08em; }

.nav-lanes {
  display: flex;
  flex-direction: column;
  margin-top: 4px;
}
.nav-item { border-bottom: 1px solid rgba(42, 74, 99, 0.6); }

.nav-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 8px 13px 14px;
  color: var(--bone);
  font-size: 16px;
  text-decoration: none;
  transition: color 0.16s var(--ease), padding-left 0.18s var(--ease);
}
.nav-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--orange);
  transform: translateY(-50%);
  transition: width 0.18s var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible { color: var(--lime); padding-left: 20px; }
.nav-link:hover::before,
.nav-link:focus-visible::before { width: 14px; }

.nav-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
  transition: color 0.16s var(--ease);
}
.nav-link:hover .nav-index { color: var(--orange); }

.nav-label { line-height: 1.3; }

.nav-link[aria-current="page"] { color: var(--lime); }
.nav-link[aria-current="page"] .nav-index { color: var(--orange); }
.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  transform: translateY(-50%);
  box-shadow: 0 0 0 3px rgba(255, 106, 19, 0.18);
}

.nav-foot {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  padding-top: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}
.nav-foot__key { color: var(--orange); }
.nav-foot__val { color: var(--stone); letter-spacing: 0.08em; }

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 8vw, 120px);
  padding: clamp(40px, 5vw, 72px) var(--gutter) 30px;
  background-color: var(--ink);
  background-image: repeating-linear-gradient(
    180deg,
    rgba(232, 226, 214, 0.045) 0 1px,
    transparent 1px 5px
  );
  border-top: 1px solid var(--steel);
  color: var(--bone);
}

.footer-strip {
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--orange) 0 120px,
    var(--lime) 120px 138px,
    var(--steel) 138px 100%
  );
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  max-width: var(--maxw);
  margin-inline: auto;
}

.footer-eyebrow {
  max-width: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--stone);
}

.footer-wordmark {
  max-width: none;
  margin-top: 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.footer-tag {
  max-width: none;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--orange);
}

.footer-note {
  margin-top: 16px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 22px clamp(16px, 3vw, 40px);
}

.footer-col__title {
  max-width: none;
  padding-bottom: 10px;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(42, 74, 99, 0.9);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--stone);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  display: inline-block;
  width: fit-content;
  padding: 2px 0;
  font-size: 15px;
  text-decoration: none;
  color: var(--bone);
  border-bottom: 1px solid transparent;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}
.footer-link:hover,
.footer-link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.footer-contact {
  display: grid;
  gap: 8px;
  max-width: var(--maxw);
  margin: clamp(28px, 4vw, 44px) auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(42, 74, 99, 0.8);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  max-width: none;
  margin: 0;
}
.contact-key {
  flex: 0 0 auto;
  min-width: 46px;
  letter-spacing: 0.18em;
  color: var(--orange);
}
.contact-val {
  color: var(--stone);
  letter-spacing: 0.02em;
  word-break: break-word;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  max-width: var(--maxw);
  margin: 18px auto 0;
  padding-top: 18px;
  border-top: 1px solid rgba(42, 74, 99, 0.8);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}
.legal-icp { color: var(--bone); }
.legal-dot { color: var(--steel); }

/* ==========================================================================
   通用布局组件
   ========================================================================== */
.container {
  display: flow-root;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(56px, 7vw, 110px); }
.section--tight { padding-block: clamp(34px, 4vw, 64px); }

.lane-rule {
  height: 1px;
  margin-block: clamp(28px, 4vw, 56px);
  border: 0;
  background: linear-gradient(90deg, var(--steel), rgba(42, 74, 99, 0));
}

.section-head { display: block; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--orange);
}

.section-title { margin-top: 12px; }

.index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--stone);
  text-transform: uppercase;
}

.grid {
  display: grid;
  gap: clamp(18px, 2.4vw, 32px);
}
.grid--7-3,
.grid--5-5,
.grid--8-2,
.grid--3up { grid-template-columns: minmax(0, 1fr); }

@media (min-width: 900px) {
  .grid--7-3 { grid-template-columns: minmax(0, 7fr) minmax(0, 3fr); }
  .grid--5-5 { grid-template-columns: minmax(0, 5fr) minmax(0, 5fr); }
  .grid--8-2 { grid-template-columns: minmax(0, 8fr) minmax(0, 2fr); }
  .grid--3up { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 面板与卡片 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2vw, 28px);
  background: linear-gradient(160deg, rgba(23, 56, 79, 0.9), rgba(11, 27, 43, 0.94));
  border: 1px solid var(--steel);
  border-radius: 3px;
}
.panel--flat {
  background: rgba(11, 27, 43, 0.62);
}

.card {
  position: relative;
  display: block;
  padding: clamp(18px, 2vw, 26px);
  background: linear-gradient(165deg, rgba(23, 56, 79, 0.9), rgba(11, 27, 43, 0.95));
  border: 1px solid var(--steel);
  border-radius: 3px;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}
.card:hover,
.card:focus-visible {
  border-color: var(--orange);
  transform: translateY(-2px);
}

.note {
  padding-left: 12px;
  border-left: 1px solid var(--steel);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.04em;
  color: var(--stone);
}

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--steel);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stone);
}
.tag--clay {
  color: #F3C6B3;
  border-color: var(--clay);
  background: rgba(180, 85, 47, 0.18);
}
.tag--moss {
  color: #C9DACF;
  border-color: var(--moss);
  background: rgba(110, 139, 122, 0.2);
}
.tag--lime {
  color: var(--lime);
  border-color: rgba(198, 255, 61, 0.5);
  background: rgba(198, 255, 61, 0.1);
}

/* ---------- 数据块 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border-left: 2px solid var(--orange);
  background: rgba(23, 56, 79, 0.55);
}
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.4vw, 26px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--lime);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stone);
}

/* ---------- 图片容器 ---------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--steel);
  border-radius: 3px;
  background-color: var(--lane);
  background-image:
    linear-gradient(135deg, rgba(23, 56, 79, 0.95), rgba(11, 27, 43, 0.95)),
    repeating-linear-gradient(115deg, rgba(198, 255, 61, 0.07) 0 2px, transparent 2px 10px);
}
.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--stone);
}
.media__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 5px 10px;
  background: var(--orange);
  color: #0A0E12;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- 正文与面包屑 ---------- */
.prose {
  max-width: 38em;
  font-size: 17px;
  line-height: 1.85;
  color: rgba(232, 226, 214, 0.9);
}
.prose p + p { margin-top: 1em; }

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
}
.breadcrumbs a {
  color: var(--stone);
  text-decoration: none;
  transition: color 0.16s var(--ease);
}
.breadcrumbs a:hover,
.breadcrumbs a:focus-visible { color: var(--lime); }
.crumb-sep { color: var(--steel); }

/* ---------- 入场显现 ---------- */
[data-reveal] { transition: opacity 0.34s var(--ease), transform 0.34s var(--ease); }
html[data-reveal-ready="on"] [data-reveal]:not(.is-in) {
  opacity: 0;
  transform: translateY(14px);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ==========================================================================
   断点
   ========================================================================== */
@media (min-width: 560px) {
  .header-cta { display: inline-flex; }
  .footer-contact { grid-template-columns: 1fr; }
}

@media (min-width: 760px) {
  .header-meta { display: inline-flex; }
  .footer-top { grid-template-columns: minmax(0, 1fr); }
}

@media (min-width: 920px) {
  .footer-top {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

/* 桌面：垂直赛道导航 */
@media (min-width: 1080px) {
  body { padding-left: var(--rail-w); }

  .progress-rail { left: var(--rail-w); }

  .header-bar { padding-inline: clamp(24px, 3vw, 44px); }

  .nav-toggle { display: none; }

  .nav-scrim { display: none; }

  .site-nav {
    top: 0;
    bottom: 0;
    width: var(--rail-w);
    padding: 22px 14px 20px;
    transform: none;
    visibility: visible;
    transition: none;
    background: linear-gradient(180deg, rgba(11, 27, 43, 0.98), rgba(5, 9, 15, 0.98));
  }

  .nav-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding-bottom: 10px;
    font-size: 10px;
    letter-spacing: 0.16em;
  }

  .nav-link {
    gap: 8px;
    padding: 12px 6px 12px 12px;
    font-size: 14px;
  }
  .nav-link:hover,
  .nav-link:focus-visible { padding-left: 16px; }

  .nav-foot { font-size: 10px; letter-spacing: 0.12em; }

  .site-footer { padding-inline: clamp(24px, 3vw, 44px); }
}

/* ==========================================================================
   无障碍：减少动效
   ========================================================================== */
@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;
  }
  html[data-reveal-ready="on"] [data-reveal]:not(.is-in) {
    opacity: 1;
    transform: none;
  }
  .nav-link:hover { padding-left: 14px; }
  .card:hover { transform: none; }
}