/* ============================================================
   宝威体育 · 共享站点样式表  /assets/site.css
   夜间球场灯光下的数据控制室：冷底、细网格、锐利直角
   ============================================================ */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd,
ul, ol { margin: 0; }

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

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

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

button { background: none; border: 0; cursor: pointer; }

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

table { border-collapse: collapse; border-spacing: 0; }

hr { border: 0; border-top: 1px solid var(--grid-500); margin: 0; }

/* ---------- 2. 设计变量 ---------- */
:root {
  color-scheme: dark;

  --ink-900: #0A0E0B;
  --ink-800: #121814;
  --ink-700: #1B231D;
  --grid-500: #2C362E;
  --grid-600: #3A4640;

  --lime: #C8F03C;
  --lime-deep: #8FA82A;
  --live-orange: #FF7A2F;
  --replay-ice: #5AC8F0;
  --transfer-violet: #A47BFF;

  --paper: #F2F0E7;
  --paper-2: #D8D5C6;
  --ink-paper: #10140C;

  --text-primary: #ECEFE9;
  --text-muted: #9BA79D;

  --font-display: "Barlow Condensed", "Oswald", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --shell-w: 1360px;
  --gutter: clamp(1rem, 3.2vw, 2.5rem);
  --header-h: 76px;
  --rail-w: 64px;

  --t-fast: 160ms;
  --t-base: 200ms;
  --t-slow: 220ms;
  --ease: cubic-bezier(0.2, 0.65, 0.25, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    linear-gradient(90deg, rgba(44, 54, 46, 0.34) 1px, transparent 1px),
    linear-gradient(180deg, rgba(44, 54, 46, 0.20) 1px, transparent 1px);
  background-size: 104px 104px;
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: 0.008em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.16;
  text-wrap: balance;
}

h1 { font-size: clamp(2rem, 5.2vw, 3.4rem); font-weight: 900; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.4rem); }

p { text-wrap: pretty; }

a:hover { color: var(--lime); }

strong { font-weight: 700; }

::selection { background: var(--lime); color: var(--ink-900); }

[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

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

.panel--paper :focus-visible { outline-color: var(--ink-paper); }

/* ---------- 4. 工具类 ---------- */
.shell {
  width: min(100% - (var(--gutter) * 2), var(--shell-w));
  margin-inline: auto;
}

.page-body { padding-block: clamp(2rem, 5vw, 4.5rem); }

.num {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.grid { display: grid; gap: var(--gutter); }

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

.span-3, .span-5, .span-7, .span-12 { grid-column: 1 / -1; }

.stat-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 11vw, 7.5rem);
  line-height: 0.86;
  letter-spacing: -0.035em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.section-mark {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.5rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.section-mark::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--lime);
  flex: none;
}

.section-mark::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--grid-500);
}

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: 50%;
  z-index: 999;
  transform: translate(-50%, -160%);
  padding: 0.7rem 1.25rem;
  background: var(--lime);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  transition: transform var(--t-base) var(--ease);
}

.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.62rem 1.05rem;
  border: 1px solid var(--grid-500);
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
  transition:
    background-color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease);
}

.btn:hover {
  background: var(--ink-700);
  border-color: var(--lime);
  color: var(--lime);
}

.btn--primary {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-900);
}

.btn--primary:hover {
  background: var(--text-primary);
  border-color: var(--text-primary);
  color: var(--ink-900);
}

.btn--ghost { background: transparent; }

.btn--live { border-color: var(--live-orange); color: var(--live-orange); }
.btn--live:hover { background: var(--live-orange); color: var(--ink-900); border-color: var(--live-orange); }

.btn--replay { border-color: var(--replay-ice); color: var(--replay-ice); }
.btn--replay:hover { background: var(--replay-ice); color: var(--ink-900); border-color: var(--replay-ice); }

.btn--transfer { border-color: var(--transfer-violet); color: var(--transfer-violet); }
.btn--transfer:hover { background: var(--transfer-violet); color: var(--ink-900); border-color: var(--transfer-violet); }

/* ---------- 7. 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.16rem 0.5rem;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  text-transform: uppercase;
  white-space: nowrap;
}

.tag--lime { color: var(--lime); }
.tag--live { color: var(--live-orange); }
.tag--replay { color: var(--replay-ice); }
.tag--transfer { color: var(--transfer-violet); }

/* ---------- 8. 面板 ---------- */
.panel {
  background: var(--ink-800);
  border: 1px solid var(--grid-500);
  padding: clamp(1.1rem, 3vw, 1.9rem);
}

.panel--paper {
  background: var(--paper);
  border-color: var(--paper-2);
  color: var(--ink-paper);
}

.panel--paper .mono,
.panel--paper .frame-caption { color: #5C6656; }

.panel--paper a:hover { color: #4E6B00; }

.panel--paper strong { color: #4E6B00; }

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.45rem;
  color: var(--grid-600);
}

.breadcrumb a:hover { color: var(--lime); }

/* ---------- 10. 正文容器 ---------- */
.prose {
  max-width: 68ch;
  font-size: 1.0625rem;
  line-height: 1.62;
}

.prose > * + * { margin-top: 1.05em; }

.prose h2 { margin-top: 2.1em; font-size: clamp(1.35rem, 2.6vw, 1.75rem); }
.prose h3 { margin-top: 1.8em; }

.prose ul,
.prose ol { padding-left: 1.25em; list-style: disc; }

.prose ol { list-style: decimal; }

.prose li { margin-top: 0.4em; }

.prose strong { color: var(--lime); }

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--ink-700);
  padding: 0.1em 0.35em;
}

/* ---------- 11. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-800);
  border: 1px solid var(--grid-500);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 14, 11, 0) 42%, rgba(10, 14, 11, 0.84) 100%);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06) brightness(0.94);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--std { aspect-ratio: 16 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.frame-caption {
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

/* ---------- 12. 数据表 ---------- */
.data-table {
  width: 100%;
  font-size: 0.9375rem;
  font-variant-numeric: tabular-nums;
}

.data-table th {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--grid-500);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  white-space: nowrap;
}

.data-table td {
  padding: 0.7rem 0.75rem;
  border-bottom: 1px solid var(--grid-500);
  vertical-align: top;
}

.data-table tbody tr {
  transition: background-color var(--t-fast) var(--ease);
}

.data-table tbody tr:hover { background: var(--ink-700); }

/* ---------- 13. 场次编号轨道 ---------- */
.rail { display: none; }
.rail-item { display: none; }

@media (min-width: 1100px) {
  .rail {
    display: flex;
    flex-direction: column;
    flex: 0 0 var(--rail-w);
    width: var(--rail-w);
    position: sticky;
    top: var(--header-h);
    align-self: flex-start;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 0.75rem 0 3rem;
    border-right: 1px solid var(--grid-500);
    scrollbar-width: thin;
  }

  .rail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 0.25rem;
    border-left: 2px solid transparent;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    transition:
      color var(--t-fast) var(--ease),
      background-color var(--t-fast) var(--ease),
      border-color var(--t-fast) var(--ease);
  }

  .rail-item:hover {
    color: var(--text-primary);
    background: var(--ink-800);
  }

  .rail-item.is-active,
  .rail-item[aria-current="true"] {
    background: var(--lime);
    border-left-color: var(--lime);
    color: var(--ink-900);
  }
}

/* ---------- 14. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  background: rgba(10, 14, 11, 0.96);
  border-bottom: 1px solid var(--grid-500);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: transparent;
  pointer-events: none;
}

.scroll-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lime);
  transition: width 90ms linear;
}

.header-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.75rem, 2vw, 2rem);
  min-height: var(--header-h);
  padding-block: 0.7rem;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 2.4vw, 2rem);
  min-width: 0;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand:hover { color: var(--text-primary); }

.brand-mark {
  display: inline-grid;
  place-items: center;
  flex: none;
  width: 38px;
  height: 38px;
  background: var(--lime);
  color: var(--ink-900);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}

.brand-text { display: block; min-width: 0; }

.brand-name {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.2;
  white-space: nowrap;
}

.brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--text-muted);
  line-height: 1.4;
  white-space: nowrap;
}

/* 赛季进度刻度 */
.season-scale { display: none; }

@media (min-width: 1200px) {
  .season-scale {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding-left: clamp(1rem, 2vw, 1.6rem);
    border-left: 1px solid var(--grid-500);
  }
}

.season-scale-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.season-scale-track {
  position: relative;
  display: block;
  width: 108px;
  height: 3px;
  background: var(--grid-500);
}

.season-scale-fill {
  position: absolute;
  inset: 0 auto 0 0;
  display: block;
  width: 73%;
  background: var(--lime);
}

.season-scale-leagues {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

/* 抽屉把手 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--grid-500);
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition:
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }

.nav-toggle[aria-expanded="true"] {
  border-color: var(--lime);
  color: var(--lime);
  background: var(--ink-700);
}

.nav-toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  width: 16px;
  flex: none;
}

.nav-toggle-bars i {
  display: block;
  height: 1px;
  background: currentColor;
}

.nav-toggle-bars i:nth-child(2) { width: 68%; }

.nav-toggle-text { line-height: 1; }

.nav-toggle-round {
  padding-left: 0.6rem;
  border-left: 1px solid var(--grid-500);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--lime);
  line-height: 1;
}

/* ---------- 15. 导航（桌面） ---------- */
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.5rem, 1.5vw, 1.4rem);
}

.nav-item { position: relative; }

.nav-link {
  display: block;
  padding: 0.7rem 0.15rem;
  border-bottom: 1px solid transparent;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.3;
  white-space: nowrap;
  transition:
    color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
}

.nav-link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.nav-link[aria-current="page"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.nav-meta {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 6;
  min-width: 172px;
  max-width: 240px;
  padding: 0.55rem 0.7rem;
  background: var(--ink-700);
  border: 1px solid var(--grid-500);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition:
    opacity var(--t-base) var(--ease),
    transform var(--t-base) var(--ease),
    visibility var(--t-base) var(--ease);
}

.nav-item:hover .nav-meta,
.nav-item:focus-within .nav-meta {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: clamp(0.4rem, 1.4vw, 1.1rem);
  padding-left: clamp(0.5rem, 1.4vw, 1.1rem);
  border-left: 1px solid var(--grid-500);
}

/* ---------- 16. 移动抽屉 ---------- */
@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }

  html.nav-open { overflow: hidden; }

  .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: min(86vh, 660px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 0.85rem var(--gutter) calc(1.6rem + env(safe-area-inset-bottom, 0px));
    background: var(--ink-800);
    border-top: 2px solid var(--lime);
    box-shadow: 0 -26px 54px rgba(0, 0, 0, 0.6);
    transform: translateY(102%);
    visibility: hidden;
    transition:
      transform var(--t-slow) var(--ease),
      visibility var(--t-slow) var(--ease);
  }

  .site-nav[data-open] {
    transform: translateY(0);
    visibility: visible;
  }

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

  .nav-item { border-bottom: 1px solid var(--grid-500); }
  .nav-item:last-child { border-bottom: 0; }

  .nav-link {
    padding: 0.95rem 0 0.45rem;
    border-bottom: 0;
    font-size: 1.12rem;
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] { border-bottom-color: transparent; }

  .nav-meta {
    position: static;
    min-width: 0;
    max-width: none;
    padding: 0 0 0.85rem;
    background: transparent;
    border: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    font-size: 11px;
  }

  .nav-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
    margin: 1.3rem 0 0;
    padding: 1.3rem 0 0;
    border-left: 0;
    border-top: 1px solid var(--grid-500);
  }

  .nav-actions .btn { width: 100%; }
}

@media (max-width: 420px) {
  .brand-sub { display: none; }
  .brand-mark { width: 34px; height: 34px; font-size: 0.95rem; }
}

/* ---------- 17. 页脚 ---------- */
.site-footer {
  margin-top: clamp(2.5rem, 6vw, 5rem);
  padding-block: clamp(2.25rem, 5vw, 3.75rem) 1.25rem;
  background: var(--ink-800);
  border-top: 1px solid var(--grid-500);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(250px, 1.45fr) minmax(0, 2fr) minmax(260px, 1.5fr);
  gap: clamp(1.75rem, 4vw, 3.5rem);
  padding-bottom: clamp(1.75rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--grid-500);
}

.footer-brand { min-width: 0; }

.footer-tagline {
  margin-top: 1.1rem;
  max-width: 34ch;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.footer-scale {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1.35rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.footer-scale-label { color: var(--lime); white-space: nowrap; }

.footer-scale-track {
  position: relative;
  display: block;
  width: 132px;
  max-width: 100%;
  height: 2px;
  background: var(--grid-500);
}

.footer-scale-track i {
  position: absolute;
  inset: 0 auto 0 0;
  display: block;
  width: 73%;
  background: var(--lime);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem);
}

.footer-col { min-width: 0; }

.footer-col-title {
  margin-bottom: 0.85rem;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
}

.footer-list li + li { margin-top: 0.5rem; }

.footer-list a {
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: color var(--t-fast) var(--ease);
}

.footer-list a:hover { color: var(--lime); }

.footer-contact { min-width: 0; }

.contact-list { margin-top: 0.1rem; }

.contact-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--grid-500);
}

.contact-item:first-child { border-top: 1px solid var(--grid-500); }

.contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.contact-value {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  word-break: break-word;
}

.copy-btn {
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--grid-500);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  white-space: nowrap;
  transition:
    border-color var(--t-fast) var(--ease),
    color var(--t-fast) var(--ease),
    background-color var(--t-fast) var(--ease);
}

.copy-btn:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.copy-btn.is-flashing {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-900);
}

.footer-contact-note {
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding-top: 1.25rem;
}

.footer-legal,
.footer-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.footer-meta { color: var(--grid-600); }

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { grid-column: auto; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 18. 滚动显现 ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition:
    opacity 420ms var(--ease),
    transform 420ms var(--ease);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 19. 减少动效 ---------- */
@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;
    scroll-behavior: auto !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .site-nav { transition: none; }
}

/* ---------- 20. 背景网格在窄屏降级 ---------- */
@media (max-width: 720px) {
  body { background-attachment: scroll; background-size: 72px 72px; }
}