/* ============================================================
   押注赛场 · 共享外壳 /assets/site.css
   深墨绿基底 + 荧光青柠状态色 + 暖橙脉冲 + 冷灰蓝辅助
   ============================================================ */

:root {
  --ink: #07130F;
  --ink-2: #0C1F19;
  --ink-3: #0A1A15;
  --lime: #C8F45A;
  --lime-dim: #6E8F2A;
  --orange: #FF8A3D;
  --blue: #8FA6B8;
  --paper: #F2F5EC;
  --indigo: #12283A;
  --coral: #FF6B5A;
  --glass: rgba(255, 255, 255, 0.10);
  --line: rgba(143, 166, 184, 0.22);
  --line-strong: rgba(143, 166, 184, 0.42);
  --font-display: "Barlow Condensed", "Oswald", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 14px;
  --gutter: clamp(18px, 4vw, 44px);
  --shell: 1240px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html.tac-nav-open, html.tac-nav-open body { overflow: hidden; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.01em;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(143, 166, 184, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 166, 184, 0.045) 1px, transparent 1px),
    radial-gradient(1100px 560px at 84% -8%, rgba(200, 244, 90, 0.10), transparent 62%),
    radial-gradient(820px 500px at 4% 22%, rgba(255, 138, 61, 0.075), transparent 62%);
  background-size: 96px 96px, 96px 96px, auto, auto;
  background-attachment: fixed, fixed, scroll, scroll;
}
h1, h2, h3, h4, p, figure, ul, ol, dl, blockquote { margin: 0; }
ul, ol { padding: 0; }
img, svg { max-width: 100%; }
a { color: var(--lime); text-decoration: none; }
a:hover { color: var(--paper); }
button { font: inherit; color: inherit; }
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection { background: var(--lime); color: var(--ink); }

/* ---------- skip link ---------- */
.tac-skip {
  position: absolute;
  left: 14px;
  top: -80px;
  z-index: 90;
  display: inline-block;
  padding: 11px 18px;
  border-radius: 8px;
  background: var(--lime);
  color: #08170B;
  font-size: 14px;
  font-weight: 700;
  transition: top 0.2s var(--ease);
}
.tac-skip:focus,
.tac-skip:focus-visible { top: 12px; color: #08170B; }

/* ---------- 容器 ---------- */
.tac-container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ============================================================
   HEADER
   ============================================================ */
.tac-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(7, 19, 15, 0.90);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 22px 44px -34px rgba(0, 0, 0, 0.95);
}
.tac-progress {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  overflow: hidden;
  background: rgba(143, 166, 184, 0.14);
}
.tac-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--lime), var(--orange));
  transition: transform 0.12s linear;
}

.tac-header__top { max-height: 120px; overflow: hidden; transition: max-height 0.3s var(--ease), opacity 0.24s var(--ease); }
.tac-header__topinner {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding-block: 14px;
}
.tac-header[data-scrolled="true"] .tac-header__top {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

/* 品牌 */
.tac-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--paper);
}
.tac-brand:hover { color: var(--paper); }
.tac-brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(150deg, #D8FF72, var(--lime) 55%, #9ED12F);
  box-shadow: 0 0 0 1px rgba(200, 244, 90, 0.45), 0 10px 24px -14px rgba(200, 244, 90, 0.95);
}
.tac-brand__mark::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.tac-brand__mark::after {
  content: "";
  position: absolute;
  top: 8px;
  right: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ink);
}
.tac-brand__text { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.tac-brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 24px;
  line-height: 1.05;
  letter-spacing: 0.03em;
}
.tac-brand__desc {
  font-size: 11.5px;
  line-height: 1.4;
  letter-spacing: 0.10em;
  color: var(--blue);
}

/* 数据桩 */
.tac-meta {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.6vw, 30px);
  margin-left: auto;
}
.tac-meta__item { display: flex; flex-direction: column; gap: 2px; }
.tac-meta__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
}
.tac-meta__value {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--paper);
}

/* 移动端切换按钮 */
.tac-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-left: auto;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--glass);
  color: var(--paper);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.tac-navtoggle:hover { border-color: var(--lime); background: rgba(200, 244, 90, 0.14); }
.tac-navtoggle__bars { display: inline-flex; flex-direction: column; justify-content: center; gap: 4px; width: 16px; height: 12px; }
.tac-navtoggle__bars span { display: block; height: 2px; border-radius: 2px; background: var(--lime); }
.tac-navtoggle__bars span:last-child { width: 11px; background: var(--orange); }

/* 导航行 */
.tac-navbar {
  position: relative;
  border-top: 1px solid rgba(143, 166, 184, 0.14);
  background: rgba(12, 31, 25, 0.55);
}
.tac-navbar__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 32px);
  padding-block: 10px;
}
.tac-nav { flex: 1 1 auto; min-width: 0; }
.tac-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(4px, 1.2vw, 8px);
  list-style: none;
}
.tac-nav__item { margin: 0; }
.tac-nav__link {
  position: relative;
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.tac-nav__link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.28s var(--ease);
}
.tac-nav__link:hover { color: var(--paper); background: rgba(255, 255, 255, 0.06); }
.tac-nav__link:hover::after { transform: scaleX(0.45); }
.tac-nav__link[aria-current="page"] {
  color: var(--ink);
  background: var(--lime);
  font-weight: 700;
  box-shadow: 0 8px 20px -14px rgba(200, 244, 90, 0.95);
}
.tac-nav__link[aria-current="page"]::after { display: none; }

/* 场边指令条 */
.tac-quick { display: flex; flex-wrap: wrap; gap: 8px; margin-left: auto; }
.tac-quick__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--glass);
  color: var(--paper);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background 0.2s var(--ease);
}
.tac-quick__link:hover { border-color: var(--lime); color: var(--lime); background: rgba(200, 244, 90, 0.10); }
.tac-quick__link--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #2A1200;
  font-weight: 700;
}
.tac-quick__link--primary:hover { background: #FF9E5C; border-color: #FF9E5C; color: #2A1200; }

/* 遮罩 */
.tac-scrim { display: none; }

/* ============================================================
   FOOTER
   ============================================================ */
.tac-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 120px);
  padding-block: clamp(38px, 6vw, 74px) 26px;
  background: linear-gradient(180deg, #0C1F19 0%, #07130F 78%);
}
.tac-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--lime) 0 32%, var(--orange) 32% 54%, var(--indigo) 54% 100%);
}
.tac-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.2fr;
  gap: clamp(24px, 4vw, 56px);
  padding-top: 14px;
}
.tac-footer__col { min-width: 0; }
.tac-brand--footer { margin-bottom: 16px; }
.tac-footer__tagline {
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: #C9D4D0;
}
.tac-footer__note {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--blue);
}
.tac-footer__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
}
.tac-footer__list { list-style: none; display: grid; gap: 9px; }
.tac-footer__link {
  display: inline-block;
  color: var(--paper);
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.tac-footer__link:hover { color: var(--lime); border-bottom-color: var(--lime-dim); }
.tac-footer__contact { gap: 11px; }
.tac-footer__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue);
}
.tac-footer__value {
  display: block;
  font-size: 14px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}
.tac-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px solid rgba(143, 166, 184, 0.16);
  font-size: 12.5px;
  color: var(--blue);
}
.tac-footer__copy { font-family: var(--font-mono); letter-spacing: 0.05em; }
.tac-legal-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.tac-legal-nav__link {
  color: var(--blue);
  border-bottom: 1px solid rgba(143, 166, 184, 0.42);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.tac-legal-nav__link:hover { color: var(--lime); border-bottom-color: var(--lime); }
.tac-footer__icp {
  margin-left: auto;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ============================================================
   通用排版与章节组件
   ============================================================ */
.tac-section { padding-block: clamp(38px, 6.5vw, 92px); }
.tac-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px 26px;
  margin-bottom: clamp(18px, 3vw, 34px);
}
.tac-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue);
}
.tac-eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--orange);
}
.tac-display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(44px, 9vw, 120px);
  line-height: 0.92;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--paper);
  text-wrap: balance;
}
.tac-lede {
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.7;
  color: #C9D4D0;
}
.tac-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--lime);
}
.tac-prose { max-width: 68ch; }
.tac-prose p { margin-bottom: 1.2em; line-height: 1.7; }
.tac-prose p:last-child { margin-bottom: 0; }
.tac-prose h2, .tac-prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 1.4em 0 0.5em;
}
.tac-rule {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--lime), rgba(200, 244, 90, 0));
  margin-block: clamp(26px, 4.5vw, 60px);
}

/* 网格 */
.tac-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}
.tac-grid--split {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
  gap: clamp(18px, 3vw, 40px);
  align-items: start;
}

/* 卡片 */
.tac-card {
  padding: clamp(16px, 2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
}
.tac-card--glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-color: rgba(255, 255, 255, 0.16);
}

/* 图片容器基础规则（页面阶段放 img） */
.tac-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--ink-2);
  background-image:
    radial-gradient(120% 92% at 22% 0%, rgba(200, 244, 90, 0.16), transparent 62%),
    radial-gradient(90% 80% at 100% 100%, rgba(255, 138, 61, 0.12), transparent 60%),
    repeating-linear-gradient(118deg, rgba(242, 245, 236, 0.055) 0 2px, transparent 2px 11px);
}
.tac-media--wide { aspect-ratio: 2 / 1; }
.tac-media--square { aspect-ratio: 1 / 1; }
.tac-media--tall { aspect-ratio: 1 / 1.4; }
.tac-media--band { aspect-ratio: 21 / 9; }
.tac-media__img { display: block; width: 100%; height: 100%; object-fit: cover; }
.tac-media__tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid rgba(200, 244, 90, 0.38);
  border-radius: 6px;
  background: rgba(7, 19, 15, 0.68);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

/* 按钮与标签 */
.tac-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.18s var(--ease);
}
.tac-btn--primary { background: var(--lime); color: #08170B; }
.tac-btn--primary:hover { background: #D9FF7C; color: #08170B; }
.tac-btn--ghost { background: transparent; border-color: var(--line-strong); color: var(--paper); }
.tac-btn--ghost:hover { border-color: var(--lime); color: var(--lime); }
.tac-btn:active { transform: translateY(1px); }
.tac-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid rgba(255, 138, 61, 0.42);
  border-radius: 6px;
  background: rgba(255, 138, 61, 0.16);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--orange);
}
.tac-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--blue);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.tac-chip:hover { color: var(--paper); border-color: var(--blue); }
.tac-chip[aria-pressed="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink);
  font-weight: 700;
}
.tac-chip[aria-pressed="true"]::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink); }

/* 面包屑 */
.tac-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--blue);
}
.tac-breadcrumb > li { display: inline-flex; align-items: center; }
.tac-breadcrumb > li + li::before { content: "／"; margin-right: 8px; color: var(--lime-dim); }
.tac-breadcrumb__link { color: var(--blue); border-bottom: 1px solid rgba(143, 166, 184, 0.35); }
.tac-breadcrumb__link:hover { color: var(--lime); border-bottom-color: var(--lime); }

/* 堆叠与列表 */
.tac-stack { display: grid; gap: clamp(12px, 2vw, 20px); }
.tac-list { list-style: none; display: grid; gap: 10px; }
.tac-list > li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: #C9D4D0;
}
.tac-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--lime-dim);
}

/* 滚动显现 */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.36s var(--ease), transform 0.36s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ============================================================
   平板
   ============================================================ */
@media (max-width: 1080px) {
  .tac-footer__grid { grid-template-columns: 1.3fr 1fr 1fr; gap: 28px; }
  .tac-brand__name { font-size: 22px; }
}

@media (max-width: 960px) {
  .tac-grid--split { grid-template-columns: minmax(0, 1fr); }
  .tac-footer__grid { grid-template-columns: 1fr 1fr; }
  .tac-footer__col--brand { grid-column: 1 / -1; }
}

/* ============================================================
   移动：导航变形为底部指令面板
   ============================================================ */
@media (max-width: 899px) {
  .tac-header__top { max-height: none; }
  .tac-header[data-scrolled="true"] .tac-header__top { max-height: none; opacity: 1; pointer-events: auto; }
  .tac-header__topinner { padding-block: 11px; gap: 12px; }
  .tac-meta { display: none; }
  .tac-navtoggle { display: inline-flex; }
  .tac-brand__mark { width: 34px; height: 34px; border-radius: 10px; }
  .tac-brand__desc { display: none; }

  .tac-navbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 70;
    max-height: 82vh;
    overflow-y: auto;
    padding: 16px var(--gutter) calc(18px + env(safe-area-inset-bottom));
    border: 0;
    border-top: 1px solid rgba(200, 244, 90, 0.38);
    border-radius: 20px 20px 0 0;
    background: var(--ink-3);
    box-shadow: 0 -34px 64px -22px rgba(0, 0, 0, 0.9);
    transform: translateY(102%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s var(--ease), opacity 0.24s linear, visibility 0.3s linear;
  }
  .tac-navbar[data-open="true"] { transform: none; opacity: 1; visibility: visible; }
  .tac-navbar__inner { flex-direction: column; align-items: stretch; gap: 14px; padding-block: 0; padding-inline: 0; }
  .tac-nav { flex: none; }
  .tac-nav__list { flex-direction: column; gap: 2px; }
  .tac-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 12px;
    border-radius: 10px;
    border-bottom: 1px solid rgba(143, 166, 184, 0.12);
    font-size: 16px;
    color: var(--paper);
    background: transparent;
  }
  .tac-nav__link::after { display: none; }
  .tac-nav__link:hover { background: rgba(255, 255, 255, 0.06); color: var(--paper); }
  .tac-nav__link[aria-current="page"] { background: var(--lime); color: var(--ink); border-bottom-color: transparent; }
  .tac-quick { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin: 0; }
  .tac-quick__link { padding: 12px 6px; border-radius: 10px; font-size: 12.5px; text-align: center; }

  .tac-scrim {
    position: fixed;
    inset: 0;
    z-index: 65;
    background: rgba(7, 19, 15, 0.72);
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
  }
  .tac-scrim[data-visible="true"] { display: block; }

  .tac-footer__legal { flex-direction: column; align-items: flex-start; gap: 10px; }
  .tac-footer__icp { margin-left: 0; }
}

/* ============================================================
   手机
   ============================================================ */
@media (max-width: 640px) {
  body { font-size: 15px; }
  .tac-display { font-size: clamp(38px, 12vw, 62px); }
  .tac-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .tac-footer__grid { grid-template-columns: 1fr; gap: 26px; }
  .tac-footer__title { margin-bottom: 10px; }
  .tac-rule { height: 6px; }
  .tac-breadcrumb { font-size: 11px; }
}

/* ============================================================
   可访问性与动效降级
   ============================================================ */
@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;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .tac-progress__bar { transition: none; }
  .tac-navbar { transition: none; }
}