/* ============================================================
   Z9 体育赛场 · 共享样式表 /assets/site.css
   轴（左侧导航轨）— 带（宽幅数据带）— 墙（索引卡片）
   ============================================================ */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:where(img, svg, video) { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0B1F17;
  --ink-2: #12291F;
  --ink-3: #0E2419;
  --cream: #F2EEE4;
  --lime: #C6F24E;
  --lime-soft: #E4FFA8;
  --orange: #FF6B2C;
  --grey: #A8B3AE;
  --text-dark: #1A211D;
  --text-on-dark: #E8E5DA;
  --line: #2E4438;
  --alert: #E4572E;

  --rail-w: 108px;
  --topbar-h: 68px;
  --shell: 1320px;
  --gutter: clamp(20px, 4vw, 56px);
  --cut: 20px;

  --font-sans: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  --fs-1: 11px;
  --fs-2: 13px;
  --fs-3: 15px;
  --fs-4: 17px;
  --fs-5: clamp(20px, 2.2vw, 26px);
  --fs-6: clamp(26px, 3.4vw, 38px);
  --fs-7: clamp(34px, 6.2vw, 64px);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--ink);
  color: var(--text-on-dark);
  font-family: var(--font-sans);
  font-size: var(--fs-3);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 901px) {
  body { padding-left: var(--rail-w); }
}
html.z9-lock { overflow: hidden; }

#main-content { scroll-margin-top: calc(var(--topbar-h) + 20px); }
.z9-main { display: block; }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
.z9-section--cream :focus-visible { outline-color: var(--ink); }
.z9-footer :focus-visible { outline-color: var(--lime-soft); }

/* ---------- 4. 跳转链接 ---------- */
.z9-skip {
  position: fixed;
  top: -120px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--lime);
  color: var(--ink);
  font-size: var(--fs-2);
  font-weight: 700;
  letter-spacing: .04em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, calc(100% - 12px) 100%, 0 100%);
  transition: top .18s var(--ease);
}
.z9-skip:focus { top: 12px; }

/* ---------- 5. 头部：顶栏 ---------- */
.z9-header { position: relative; z-index: 50; }

.z9-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}
.z9-topbar__inner {
  width: min(100% - 2 * clamp(16px, 3vw, 40px), var(--shell));
  margin-inline: auto;
  min-height: var(--topbar-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(14px, 3vw, 40px);
  padding-block: 10px;
}

.z9-brand { display: inline-flex; align-items: center; gap: 12px; }
.z9-brand__mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -.02em;
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}
.z9-brand__text { display: block; }
.z9-brand__name {
  display: block;
  font-size: var(--fs-3);
  font-weight: 800;
  letter-spacing: .01em;
  line-height: 1.2;
  color: var(--cream);
}
.z9-brand__meta {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .18em;
  line-height: 1.6;
  color: var(--grey);
}

.z9-topbar__motto {
  font-size: var(--fs-2);
  line-height: 1.55;
  color: var(--grey);
  max-width: 46ch;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.z9-utility {
  display: flex;
  align-items: center;
  gap: 18px;
  justify-self: end;
}
.z9-utility__item {
  display: inline-block;
  padding: 7px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .14em;
  color: var(--grey);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.z9-utility__item:hover { color: var(--lime); border-bottom-color: var(--lime); }
.z9-utility__item--cta {
  padding: 7px 14px;
  color: var(--orange);
  border: 1px solid rgba(255, 107, 44, .55);
  border-bottom-color: rgba(255, 107, 44, .55);
  clip-path: polygon(0 0, 100% 0, 100% 68%, calc(100% - 10px) 100%, 0 100%);
}
.z9-utility__item--cta:hover {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

.z9-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
}
.z9-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform .12s linear;
}

/* ---------- 6. 头部：纵向赛程轴导航 ---------- */
.z9-nav {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 60;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--ink-2);
  border-right: 1px solid var(--line);
  padding: 18px 0 16px;
}
.z9-nav__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.z9-nav__tag {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  color: var(--lime);
}
.z9-nav__list {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  padding: 14px 0;
}
.z9-nav__item { display: block; }
.z9-nav__link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 12px 6px;
  color: var(--grey);
  transition: color .18s var(--ease), background-color .18s var(--ease);
}
.z9-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -7px;
  width: 1px;
  height: 7px;
  background: var(--line);
}
.z9-nav__item:last-child .z9-nav__link::after { display: none; }
.z9-nav__idx {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .12em;
  color: #6E7C74;
  transition: color .18s var(--ease);
}
.z9-nav__label {
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.25;
  text-align: center;
}
.z9-nav__link:hover { color: var(--lime); background: rgba(198, 242, 78, .05); }
.z9-nav__link:hover .z9-nav__idx { color: var(--lime-soft); }
.z9-nav__link[aria-current="page"] { color: var(--lime); background: rgba(198, 242, 78, .07); }
.z9-nav__link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--lime);
}
.z9-nav__link[aria-current="page"] .z9-nav__idx { color: var(--lime-soft); }

.z9-nav__diagonal {
  height: 30px;
  margin: 0 12px 10px;
  background: repeating-linear-gradient(45deg, var(--line) 0 1px, transparent 1px 7px);
  opacity: .8;
}
.z9-nav__foot {
  padding-top: 12px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.z9-nav__geo {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--grey);
  line-height: 1.7;
}

/* ---------- 7. 移动导航按钮与遮罩 ---------- */
.z9-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .16em;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}
.z9-nav-toggle:hover { border-color: var(--lime); color: var(--lime); }
.z9-nav-toggle__bars { display: grid; gap: 4px; }
.z9-nav-toggle__bars i {
  display: block;
  width: 16px;
  height: 1px;
  background: var(--lime);
  transition: transform .2s var(--ease);
}
.z9-nav-toggle[aria-expanded="true"] .z9-nav-toggle__bars i:first-child { transform: translateY(2.5px) rotate(45deg); }
.z9-nav-toggle[aria-expanded="true"] .z9-nav-toggle__bars i:last-child { transform: translateY(-2.5px) rotate(-45deg); }

.z9-scrim {
  position: fixed;
  inset: 0;
  z-index: 70;
  background: rgba(6, 16, 12, .74);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), visibility .22s var(--ease);
}
.z9-scrim[data-open="true"] { opacity: 1; visibility: visible; }
@media (min-width: 901px) { .z9-scrim { display: none; } }

/* ---------- 8. 头部响应式 ---------- */
@media (max-width: 1080px) {
  .z9-topbar__motto { display: none; }
}
@media (max-width: 900px) {
  .z9-topbar__inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand toggle"
      "util  util";
    row-gap: 10px;
    padding-block: 12px;
  }
  .z9-brand { grid-area: brand; }
  .z9-nav-toggle { grid-area: toggle; display: inline-flex; }
  .z9-utility {
    grid-area: util;
    justify-self: stretch;
    justify-content: flex-start;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }
  .z9-utility::-webkit-scrollbar { display: none; }

  .z9-nav {
    width: min(84vw, 320px);
    padding: 20px 16px;
    z-index: 90;
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform .22s var(--ease), visibility .22s var(--ease);
  }
  .z9-nav[data-open="true"] { transform: translateX(0); visibility: visible; }
  .z9-nav__head { align-items: flex-start; }
  .z9-nav__list {
    justify-content: flex-start;
    gap: 0;
    padding: 10px 0;
  }
  .z9-nav__link {
    flex-direction: row;
    align-items: baseline;
    gap: 14px;
    padding: 14px 10px;
    border-bottom: 1px solid var(--line);
    font-size: var(--fs-4);
  }
  .z9-nav__link::after { display: none; }
  .z9-nav__link[aria-current="page"]::before { top: 6px; bottom: 6px; }
  .z9-nav__label { font-size: var(--fs-4); text-align: left; }
  .z9-nav__idx { font-size: 10px; }
  .z9-nav__diagonal { margin-inline: 0; }
  .z9-nav__foot { text-align: left; }
}

/* ---------- 9. 页脚 ---------- */
.z9-footer {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  color: var(--text-on-dark);
  border-top: 1px solid var(--line);
}
.z9-footer__mesh {
  position: absolute;
  inset: auto 0 0 0;
  height: 140px;
  background: repeating-linear-gradient(45deg, rgba(228, 255, 168, .06) 0 1px, transparent 1px 11px);
  pointer-events: none;
}
.z9-footer__inner {
  position: relative;
  z-index: 1;
  width: min(100% - 2 * var(--gutter), var(--shell));
  margin-inline: auto;
  padding: clamp(40px, 6vw, 72px) 0 0;
}
.z9-footer__top {
  display: grid;
  grid-template-columns: 1.6fr auto;
  align-items: end;
  gap: 28px;
  padding-bottom: clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}
.z9-footer__brandline {
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 800;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: var(--cream);
  max-width: 24ch;
}
.z9-footer__geo {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .16em;
  color: var(--grey);
}
.z9-footer__cta { justify-self: end; }

.z9-footer__grid {
  display: grid;
  grid-template-columns: 1fr .8fr 1.3fr;
  gap: clamp(20px, 4vw, 56px);
  padding: clamp(26px, 4vw, 46px) 0;
}
.z9-footer__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lime);
}
.z9-footer__list { display: grid; gap: 9px; }
.z9-footer__link {
  display: inline-block;
  width: fit-content;
  font-size: var(--fs-3);
  color: #CDD5CF;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.z9-footer__link:hover { color: var(--lime); border-bottom-color: var(--lime); }

.z9-footer__contact { display: grid; gap: 10px; }
.z9-footer__contact-line {
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  line-height: 1.7;
  color: #CDD5CF;
  word-break: break-word;
}
.z9-footer__contact-line:last-of-type {
  font-family: var(--font-sans);
  letter-spacing: .01em;
}
.z9-footer__contact-note {
  font-size: var(--fs-2);
  line-height: 1.7;
  color: var(--grey);
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.z9-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  padding: 18px 0 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .1em;
  color: var(--grey);
}
.z9-footer__icp { color: var(--grey); }

@media (max-width: 760px) {
  .z9-footer__top { grid-template-columns: 1fr; align-items: start; }
  .z9-footer__cta { justify-self: start; }
  .z9-footer__grid { grid-template-columns: 1fr 1fr; }
  .z9-footer__col:last-child { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .z9-footer__grid { grid-template-columns: 1fr; }
  .z9-footer__col:last-child { grid-column: auto; }
}

/* ---------- 10. 按钮 ---------- */
.z9-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
  font-size: var(--fs-2);
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.2;
  clip-path: polygon(0 0, 100% 0, 100% 70%, calc(100% - 12px) 100%, 0 100%);
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.z9-btn--primary { background: var(--lime); color: var(--ink); }
.z9-btn--primary:hover { background: var(--lime-soft); }
.z9-btn--signal { background: var(--orange); color: #180B04; }
.z9-btn--signal:hover { background: #FF8A57; }
.z9-btn--ghost {
  background: transparent;
  color: var(--text-on-dark);
  border: 1px solid var(--line);
  clip-path: none;
}
.z9-btn--ghost:hover { border-color: var(--lime); color: var(--lime); }

/* ---------- 11. 区块与容器 ---------- */
.z9-wrap {
  width: min(100% - 2 * var(--gutter), var(--shell));
  margin-inline: auto;
}
.z9-section {
  position: relative;
  padding-block: clamp(44px, 7vw, 96px);
  background: var(--ink);
  color: var(--text-on-dark);
}
.z9-section--ink2 { background: var(--ink-2); }
.z9-section--cream { background: var(--cream); color: var(--text-dark); }
.z9-section--cream .z9-h2,
.z9-section--cream .z9-h3,
.z9-section--cream .z9-display { color: var(--text-dark); }
.z9-section--cream .z9-lede,
.z9-section--cream .z9-body { color: #3A443D; }
.z9-section--cream .z9-eyebrow { color: #5C6A62; }
.z9-section--cream .z9-num { color: var(--text-dark); }

/* ---------- 12. 排版组件 ---------- */
.z9-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--grey);
}
.z9-display {
  font-size: var(--fs-7);
  font-weight: 800;
  line-height: .96;
  letter-spacing: -.01em;
  font-stretch: condensed;
  color: var(--cream);
}
.z9-h2 {
  font-size: var(--fs-6);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.01em;
  color: var(--cream);
}
.z9-h3 {
  font-size: var(--fs-5);
  font-weight: 700;
  line-height: 1.32;
  color: var(--cream);
}
.z9-lede {
  font-size: var(--fs-4);
  line-height: 1.65;
  max-width: 62ch;
  color: var(--text-on-dark);
}
.z9-body {
  font-size: var(--fs-3);
  line-height: 1.78;
  max-width: 68ch;
  color: #C9D1CB;
}
.z9-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.01em;
  color: var(--lime);
}

/* ---------- 13. 面包屑 ---------- */
.z9-breadcrumb {
  padding-block: 18px;
  border-bottom: 1px solid var(--line);
}
.z9-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .12em;
  color: var(--grey);
}
.z9-breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.z9-breadcrumb__item + .z9-breadcrumb__item::before {
  content: "/";
  color: var(--line);
}
.z9-breadcrumb__item a { transition: color .18s var(--ease); }
.z9-breadcrumb__item a:hover { color: var(--lime); }
.z9-breadcrumb__item[aria-current="page"] { color: var(--lime); }

/* ---------- 14. 网格 ---------- */
.z9-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}
.z9-grid--wide { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.z9-grid--wide > :first-child { grid-column: span 3; }
.z9-grid--wide > :last-child { grid-column: span 9; }
.z9-grid--reads { grid-template-columns: 5fr 7fr; }
.z9-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2vw, 24px);
}
@media (max-width: 900px) {
  .z9-grid--wide > :first-child,
  .z9-grid--wide > :last-child { grid-column: 1 / -1; }
  .z9-grid--reads { grid-template-columns: 1fr; }
  .z9-grid--three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .z9-grid--three { grid-template-columns: 1fr; }
}

/* ---------- 15. 切角面板 / 分隔 ---------- */
.z9-panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}
.z9-section--cream .z9-panel {
  background: #FBF8F0;
  border-color: #D9D3C4;
}
.z9-divider {
  height: 1px;
  border: 0;
  background: var(--line);
  margin-block: clamp(24px, 4vw, 40px);
}
.z9-section--cream .z9-divider { background: #D2CCBD; }
.z9-slash {
  height: 12px;
  background: repeating-linear-gradient(45deg, var(--line) 0 1px, transparent 1px 8px);
  opacity: .9;
}

/* ---------- 16. 图像容器（纹理占位，可直接放 img） ---------- */
.z9-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-3);
  border: 1px solid var(--line);
}
.z9-figure__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--ink-3);
  background-position: center;
  background-size: cover;
}
.z9-figure__media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.z9-figure__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .12em;
  color: var(--grey);
  border-top: 1px solid var(--line);
}
.z9-figure--wide .z9-figure__media { aspect-ratio: 21 / 9; }
.z9-figure--tall .z9-figure__media { aspect-ratio: 4 / 5; }

.z9-figure--turf .z9-figure__media {
  background-image:
    repeating-linear-gradient(90deg, #143324 0 26px, #0F2619 26px 52px),
    repeating-linear-gradient(0deg, rgba(198, 242, 78, .07) 0 1px, transparent 1px 34px);
}
.z9-figure--net .z9-figure__media {
  background-image:
    repeating-linear-gradient(45deg, transparent 0 9px, rgba(228, 255, 168, .18) 9px 10px),
    repeating-linear-gradient(-45deg, transparent 0 9px, rgba(228, 255, 168, .12) 9px 10px);
}
.z9-figure--stand .z9-figure__media {
  background-image:
    repeating-linear-gradient(180deg, rgba(198, 242, 78, .10) 0 3px, transparent 3px 13px),
    linear-gradient(180deg, #0B1F17 0%, #16301F 62%, #0B1F17 100%);
}
.z9-figure--chart .z9-figure__media {
  background-image:
    repeating-linear-gradient(0deg, rgba(228, 255, 168, .14) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(228, 255, 168, .07) 0 1px, transparent 1px 32px);
  border-left: 2px solid var(--lime);
}

/* ---------- 17. 图例与坐标索引 ---------- */
.z9-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .12em;
  color: var(--grey);
}
.z9-legend__item { display: inline-flex; align-items: center; gap: 8px; }
.z9-legend__dot {
  width: 8px;
  height: 8px;
  background: var(--grey);
  clip-path: polygon(0 0, 100% 0, 100% 60%, 60% 100%, 0 100%);
}
.z9-legend__dot--lime { background: var(--lime); }
.z9-legend__dot--orange { background: var(--orange); }
.z9-legend__dot--grey { background: var(--grey); }
.z9-legend__dot--alert { background: var(--alert); }

.z9-coord { display: grid; gap: 0; }
.z9-coord__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.z9-coord__key {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--grey);
}
.z9-coord__val {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--fs-4);
  color: var(--lime);
}

.z9-tag {
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--lime);
  border: 1px solid var(--line);
}
.z9-section--cream .z9-tag { color: #2E4438; border-color: #C9C2B2; }

/* ---------- 18. 分段切换（data-tabs 协议） ---------- */
.z9-tabs { display: block; }
.z9-tabs__list {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
  scrollbar-width: none;
}
.z9-tabs__list::-webkit-scrollbar { display: none; }
.z9-tabs__tab {
  flex: 0 0 auto;
  padding: 12px 18px;
  font-size: var(--fs-2);
  letter-spacing: .08em;
  color: var(--grey);
  border-bottom: 2px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.z9-tabs__tab:hover { color: var(--cream); }
.z9-tabs__tab[aria-selected="true"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.z9-section--cream .z9-tabs__list { border-bottom-color: #D2CCBD; }
.z9-section--cream .z9-tabs__tab { color: #5C6A62; }
.z9-section--cream .z9-tabs__tab:hover { color: var(--text-dark); }
.z9-section--cream .z9-tabs__tab[aria-selected="true"] {
  color: var(--text-dark);
  border-bottom-color: var(--orange);
}
.z9-tabs__panel { padding-top: clamp(18px, 2.4vw, 28px); }
.z9-tabs__panel[data-active="true"] { animation: z9-fade .18s var(--ease) both; }
@keyframes z9-fade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 19. 渐次显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .42s var(--ease), transform .42s var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 20. 无障碍动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .z9-progress__bar { transition: none; }
}