/* ============================================================
   site.css — 华体会体育赛 共享外壳
   纸张叠层 · 印刷边框 · 丹霞赭红锚点 · 深空蓝分区
   ============================================================ */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }

ul, ol { padding: 0; list-style: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

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

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

table { border-collapse: collapse; width: 100%; }

[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --danxia: #B4362A;
  --danxia-deep: #7E2318;
  --sand: #E0A94A;
  --sand-light: #F2D9A8;
  --space: #101A2E;
  --space-lift: #1E2C4A;
  --cyan: #35E0B0;
  --cyan-dark: #0F6B57;
  --sandstone: #E7E1D8;
  --sandstone-deep: #CFC6B8;
  --ink: #14110F;

  --font-display: "Arial Narrow", "Helvetica Neue Condensed", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --fs-12: 0.75rem;
  --fs-13: 0.8125rem;
  --fs-15: 0.9375rem;
  --fs-18: 1.125rem;
  --fs-24: 1.5rem;
  --fs-34: 2.125rem;
  --fs-52: 3.25rem;
  --fs-76: 4.75rem;
  --fs-104: 6.5rem;

  --wrap: 1240px;
  --gutter: clamp(18px, 4.4vw, 56px);
  --shell-pad: clamp(16px, 3.2vw, 44px);
  --header-h: 84px;

  --edge: 1px solid var(--ink);
  --shadow-paper: 6px 6px 0 var(--sandstone-deep);
  --ease: cubic-bezier(.2, .7, .3, 1);
  --dur: 180ms;
}

@media (max-width: 860px) {
  :root { --header-h: 68px; }
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--sandstone);
  color: var(--space);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: repeating-linear-gradient(to right, rgba(20, 17, 15, .045) 0 1px, transparent 1px 96px);
}

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

.site-footer :focus-visible { outline-color: var(--cyan); }

/* ---------- 4. 排版工具类 ---------- */
.container {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.prose {
  max-width: 68ch;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: var(--space);
}

.prose p + p { margin-top: 1.1em; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--danxia);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--danxia);
}

.display-title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.6rem, 6.4vw, 6rem);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--ink);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2.125rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.index-num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--space-lift);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
}

.rule {
  border: 0;
  height: 1px;
  background: var(--sandstone-deep);
}

/* ---------- 5. 网格 ---------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 32px);
}

.col-main { grid-column: span 7; }
.col-aside { grid-column: span 3; }
.col-edge { grid-column: span 2; }

@media (max-width: 1199px) {
  .col-main { grid-column: span 12; }
  .col-aside { grid-column: span 12; }
  .col-edge { grid-column: span 12; }
}

@media (min-width: 640px) and (max-width: 1199px) {
  .col-main { grid-column: span 8; }
  .col-aside { grid-column: span 4; }
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.btn:hover { transform: translate(-2px, -2px); }

.btn--primary {
  background: var(--danxia);
  border-color: var(--danxia);
  color: #fff;
  box-shadow: 4px 4px 0 var(--sandstone-deep);
}

.btn--primary:hover { background: var(--danxia-deep); border-color: var(--danxia-deep); }

.btn--ghost {
  background: var(--sand-light);
  border-color: var(--ink);
}

.btn--dark {
  background: var(--space);
  border-color: var(--space);
  color: var(--sandstone);
}

/* ---------- 7. 面包屑 ---------- */
.breadcrumbs {
  padding: clamp(16px, 2.4vw, 28px) 0;
  border-bottom: 1px solid var(--sandstone-deep);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--space-lift);
}

.breadcrumb-item { display: flex; align-items: center; gap: 10px; }

.breadcrumb-item + .breadcrumb-item::before {
  content: "／";
  color: var(--danxia);
}

.breadcrumb-link {
  color: var(--space-lift);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.breadcrumb-link:hover { color: var(--danxia); border-bottom-color: var(--danxia); }

.breadcrumb-current { color: var(--ink); }

/* ---------- 8. 卡片 / 标签 ---------- */
.card {
  background: var(--sandstone);
  border: var(--edge);
  box-shadow: var(--shadow-paper);
  padding: clamp(18px, 2.4vw, 30px);
}

.card--lift { background: var(--sand-light); }

.card--dark {
  background: var(--space);
  color: var(--sandstone);
  border-color: var(--space-lift);
}

.card--dark .section-title,
.card--dark .display-title { color: var(--sandstone); }

.label-tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--danxia);
  background: var(--sandstone);
  color: var(--danxia);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  clip-path: polygon(0 0, 100% 0, 100% 68%, 88% 100%, 0 100%);
}

/* ---------- 9. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--space-lift);
  border: 1px solid var(--ink);
  overflow: hidden;
}

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

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__strip {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--danxia), var(--sand));
}

.media-frame__badge {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 4px 8px;
  background: var(--space);
  color: var(--cyan);
  border: 1px solid var(--cyan-dark);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
}

/* ---------- 10. 数据表 ---------- */
.data-shell {
  border: 1px solid var(--ink);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background:
    repeating-linear-gradient(to right, rgba(20, 17, 15, .05) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(to bottom, rgba(20, 17, 15, .05) 0 1px, transparent 1px 44px),
    var(--sandstone);
}

.data-table {
  min-width: 640px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--sandstone-deep);
}

.data-table thead th {
  background: var(--space);
  color: var(--sandstone);
  font-weight: 600;
  letter-spacing: .08em;
}

.data-table tbody tr { transition: background 80ms var(--ease); }
.data-table tbody tr:hover { background: var(--sand-light); }
.data-table tbody tr:hover td:first-child { box-shadow: inset 3px 0 0 var(--cyan-dark); }

.data-table .col-fixed {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--sandstone);
}

.data-table thead .col-fixed {
  background: var(--space);
  z-index: 3;
}

/* ---------- 11. 分段切换 ---------- */
.segmented {
  display: inline-flex;
  border: 1px solid var(--ink);
  background: var(--sand-light);
}

.segmented-btn {
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .06em;
  color: var(--ink);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.segmented-btn + .segmented-btn { border-left: 1px solid var(--ink); }

.segmented-btn:hover { background: var(--sandstone-deep); }

.segmented-btn[aria-selected="true"] {
  background: var(--ink);
  color: var(--sandstone);
}

/* ---------- 12. 时间轴基础 ---------- */
.timeline {
  display: flex;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x proximity;
  padding-bottom: 12px;
}

.timeline-node {
  flex: 0 0 clamp(180px, 22vw, 240px);
  scroll-snap-align: start;
  padding: 18px;
  border-left: 1px solid var(--sandstone-deep);
}

.timeline-node::before {
  content: "";
  display: block;
  width: 9px;
  height: 9px;
  margin-bottom: 14px;
  background: var(--danxia);
  transform: rotate(45deg);
}

/* ---------- 13. 显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 页头 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -72px;
  z-index: 120;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--sandstone);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  transition: top var(--dur) var(--ease);
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--sandstone);
  border-bottom: 1px solid var(--danxia);
  transition: box-shadow var(--dur) var(--ease);
}

.site-header.is-scrolled { box-shadow: 0 12px 0 -8px rgba(20, 17, 15, .16); }

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 36px);
  min-height: var(--header-h);
  max-width: 1520px;
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

/* 品牌 */
.brand-block { flex: 0 0 auto; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  background: var(--danxia);
  transform: rotate(45deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--sandstone);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-24);
  letter-spacing: -.02em;
  color: var(--ink);
}

.brand-sub {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--space-lift);
}

@media (max-width: 860px) {
  .brand-mark { width: 13px; height: 13px; }
  .brand-mark::after { inset: 4px; }
  .brand-name { font-size: var(--fs-18); }
  .brand-sub { font-size: 11px; letter-spacing: .1em; }
}

/* 赛程按钮 */
.header-mid { flex: 0 0 auto; }

.schedule-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px 9px 16px;
  border: 1px solid var(--ink);
  background: var(--sand-light);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .06em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.schedule-btn-label { font-weight: 700; }

.schedule-btn-meta {
  font-size: var(--fs-12);
  letter-spacing: .04em;
  opacity: .72;
}

.schedule-btn-caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--danxia);
  transition: transform var(--dur) var(--ease), border-top-color var(--dur) var(--ease);
}

.schedule-btn:hover { background: var(--sandstone-deep); }

.schedule-btn[aria-expanded="true"] {
  background: var(--danxia);
  border-color: var(--danxia);
  color: #fff;
}

.schedule-btn[aria-expanded="true"] .schedule-btn-caret {
  border-top-color: #fff;
  transform: rotate(180deg);
}

/* 主导航 */
.primary-nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.4vw, 22px);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  font-size: var(--fs-13);
  letter-spacing: .12em;
  color: var(--space);
  white-space: nowrap;
  transition: color var(--dur) var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--danxia);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}

.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); }

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

.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -2px;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  background: var(--danxia);
  transform: rotate(45deg);
}

.nav-item--utility { display: none; }

/* 页头快捷链 */
.header-links {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-left: clamp(12px, 1.4vw, 24px);
  border-left: 1px solid var(--sandstone-deep);
}

.header-link {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--space);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.header-link:hover { color: var(--danxia); border-bottom-color: var(--danxia); }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--ink);
  background: transparent;
  margin-left: auto;
}

.nav-toggle-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 18px;
  height: 10px;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease);
}

.nav-toggle-text {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* 进度条 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.scroll-progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--sand);
  transition: width 120ms linear;
}

/* ---------- 15. 筛选抽屉 ---------- */
.filter-drawer {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--header-h);
  z-index: 55;
  max-height: calc(100vh - var(--header-h));
  overflow-y: auto;
  padding: clamp(18px, 2.6vw, 32px) 0 clamp(20px, 3vw, 34px);
  background: var(--space);
  color: var(--sandstone);
  border-bottom: 3px solid var(--danxia);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.filter-drawer.is-open {
  opacity: 1;
  transform: none;
}

.drawer-inner {
  max-width: 1520px;
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.drawer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--space-lift);
}

.drawer-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-24);
  letter-spacing: .02em;
  color: var(--sandstone);
}

.drawer-head-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.drawer-hint {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--sand);
}

.drawer-close {
  padding: 6px 12px;
  border: 1px solid var(--sandstone-deep);
  color: var(--sandstone);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.drawer-close:hover { background: var(--space-lift); border-color: var(--sand); }

.drawer-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px 32px;
  margin-top: 22px;
}

.chip-group { min-width: 0; }

.chip-group-label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--cyan);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.chip {
  padding: 7px 12px;
  border: 1px solid var(--sandstone-deep);
  background: transparent;
  color: var(--sandstone);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .02em;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.chip:hover { background: var(--space-lift); border-color: var(--sand); }

.chip.is-active,
.chip[aria-pressed="true"] {
  background: var(--danxia);
  border-color: var(--danxia);
  color: #fff;
}

.drawer-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--space-lift);
}

.drawer-clear {
  padding-bottom: 2px;
  border-bottom: 1px solid var(--sand);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.drawer-clear:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.drawer-status {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--cyan);
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 120px);
  background: var(--space);
  color: var(--sandstone);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--danxia);
}

.footer-inner {
  max-width: 1520px;
  margin-inline: auto;
  padding: clamp(40px, 6vw, 84px) var(--shell-pad) clamp(24px, 3vw, 40px);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 2fr;
  gap: clamp(24px, 4vw, 64px);
  padding-bottom: clamp(28px, 4vw, 52px);
  border-bottom: 1px solid var(--space-lift);
}

.brand--footer .brand-mark { background: var(--danxia); }
.brand--footer .brand-mark::after { background: var(--space); }
.brand--footer .brand-name { color: var(--sandstone); }
.brand--footer .brand-sub { color: var(--sand); }

.footer-note {
  margin-top: 18px;
  max-width: 34ch;
  font-size: var(--fs-15);
  line-height: 1.8;
  color: var(--sandstone-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: start;
  gap: clamp(20px, 3vw, 44px);
  padding-top: clamp(28px, 4vw, 52px);
}

.footer-col:nth-child(2) { margin-top: 16px; }
.footer-col:nth-child(3) { margin-top: 32px; }
.footer-col:nth-child(4) { margin-top: 8px; }

.footer-heading {
  display: block;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .2em;
  color: var(--sand);
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-item { display: block; }

.footer-link {
  display: inline-block;
  padding-bottom: 2px;
  font-size: var(--fs-15);
  color: var(--sandstone);
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.footer-link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }

.footer-meta {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--sandstone-deep);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: clamp(28px, 4vw, 52px);
  padding-top: 20px;
  border-top: 1px solid var(--space-lift);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--sandstone-deep);
}

.footer-legal strong { color: var(--sandstone); font-weight: 700; }

.footer-contact {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.9;
  color: var(--sandstone-deep);
}

/* ---------- 17. 平板与移动 ---------- */
@media (max-width: 1199px) {
  .nav-toggle { display: inline-flex; }

  .header-links { display: none; }

  .primary-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--header-h);
    z-index: 58;
    display: none;
    margin-left: 0;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 6px var(--shell-pad) 26px;
    background: var(--sandstone);
    border-bottom: 1px solid var(--ink);
    box-shadow: 0 16px 0 -8px rgba(20, 17, 15, .12);
  }

  .primary-nav[data-open="true"] { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item { border-bottom: 1px solid var(--sandstone-deep); }

  .nav-item--utility { display: block; }
  .nav-item--utility .nav-link { color: var(--danxia); }

  .nav-link {
    display: block;
    padding: 15px 0 15px 18px;
    font-size: var(--fs-18);
    letter-spacing: .06em;
  }

  .nav-link::after { left: 0; right: auto; width: 64px; bottom: 6px; }

  .nav-link[aria-current="page"]::before {
    top: 50%;
    left: 2px;
    margin: -3px 0 0 0;
    transform: rotate(45deg);
  }
}

@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-top: clamp(20px, 4vw, 36px); }
  .footer-col:nth-child(2),
  .footer-col:nth-child(3),
  .footer-col:nth-child(4) { margin-top: 0; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .drawer-body { grid-template-columns: 1fr; }
  .schedule-btn-meta { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-legal { flex-direction: column; gap: 6px; }
  .segmented { display: flex; width: 100%; }
  .segmented-btn { flex: 1 1 auto; text-align: center; padding: 10px 12px; }
}

/* ---------- 18. 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .reveal { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
}