/* ============================================================
   bsport体育 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 基础组件
   ============================================================ */

/* ---------- 1. reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, figcaption, blockquote, dl, dt, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { width: 100%; border-collapse: collapse; }

/* ---------- 2. tokens ---------- */
:root {
  --ink-950: #04120F;
  --ink-900: #07201B;
  --ink-800: #0B2E27;
  --cyan-400: #2CF2C8;
  --cyan-700: #0E8C77;
  --orange-500: #FF7A1A;
  --amber-300: #FFC24B;
  --paper-100: #E8F5F0;
  --mist-400: #93B3AB;
  --alert-500: #FF4D5E;

  --line: rgba(14, 140, 119, .38);
  --line-soft: rgba(14, 140, 119, .18);
  --grid-line: rgba(44, 242, 200, .055);

  --rail-w: 88px;
  --gap: 20px;
  --pad: clamp(18px, 4vw, 40px);
  --maxw: 1360px;

  --font-display: "Archivo Narrow", "Oswald", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-num: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --t-fast: .15s;
  --t-mid: .26s;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. base ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink-950);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--paper-100);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 1024px) { body { padding-left: var(--rail-w); } }
body.is-nav-open { overflow: hidden; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
}
p { max-width: 40em; }
strong, b { font-weight: 600; }
::selection { background: var(--cyan-400); color: var(--ink-950); }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

/* ---------- 4. 通用布局与排版 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.section { padding: clamp(34px, 5.5vw, 72px) 0; border-top: 1px solid var(--line-soft); }
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  padding-bottom: 16px;
  margin-bottom: 26px;
  border-bottom: 1px solid var(--line);
}
.section__title {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 46px);
  line-height: 1.04;
  letter-spacing: -.02em;
}
.section__lead { max-width: 44ch; font-size: 15px; color: var(--mist-400); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--cyan-400);
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--orange-500); }
.slash {
  display: block;
  height: 2px;
  border: 0;
  background: linear-gradient(90deg, var(--cyan-400), rgba(44, 242, 200, 0));
  transform: skewY(-1.4deg);
  transform-origin: left center;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--cyan-400);
  background: transparent;
  color: var(--cyan-400);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .14em;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}
.btn:hover { background: var(--cyan-400); color: var(--ink-950); }
.btn:active { transform: translateY(1px); }
.btn--solid { background: var(--cyan-400); color: var(--ink-950); }
.btn--solid:hover { background: var(--paper-100); border-color: var(--paper-100); }
.btn--accent { border-color: var(--orange-500); color: var(--orange-500); }
.btn--accent:hover { background: var(--orange-500); color: var(--ink-950); }
.btn--ghost { border-color: var(--line); color: var(--mist-400); }
.btn--ghost:hover { background: var(--ink-800); border-color: var(--cyan-700); color: var(--paper-100); }

/* ---------- 6. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 14px 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist-400);
}
.breadcrumb li { display: flex; align-items: center; gap: 8px; }
.breadcrumb li + li::before { content: "/"; color: var(--cyan-700); }
.breadcrumb a:hover { color: var(--cyan-400); }

/* ---------- 7. 面板 / 数据 / 标签 ---------- */
.panel { position: relative; background: var(--ink-900); border: 1px solid var(--line); padding: 22px; }
.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 18px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.panel__label {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--cyan-400);
}
.panel__meta { font-family: var(--font-num); font-size: 11px; letter-spacing: .12em; color: var(--mist-400); }

.stat { display: flex; flex-direction: column; gap: 6px; }
.stat__value {
  font-family: var(--font-num);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 600;
  line-height: 1;
  color: var(--cyan-400);
  font-variant-numeric: tabular-nums;
}
.stat__value--accent { color: var(--orange-500); }
.stat__value--amber { color: var(--amber-300); }
.stat__unit { margin-left: 6px; font-family: var(--font-num); font-size: 14px; color: var(--mist-400); }
.stat__label { font-family: var(--font-num); font-size: 11px; letter-spacing: .18em; color: var(--mist-400); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  background: var(--ink-900);
  color: var(--mist-400);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .08em;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}
.chip:hover { border-color: var(--cyan-400); color: var(--paper-100); }
.chip[aria-pressed="true"] { background: var(--cyan-400); border-color: var(--cyan-400); color: var(--ink-950); }
.chip--accent { border-color: rgba(255, 122, 26, .5); color: var(--amber-300); }
.chip--accent[aria-pressed="true"] { background: var(--orange-500); border-color: var(--orange-500); color: var(--ink-950); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--mist-400);
}
.tag--live { border-color: var(--orange-500); color: var(--orange-500); }
.tag--live::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--orange-500);
  animation: bs-pulse 1.8s ease-in-out infinite;
}
@keyframes bs-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .22; } }

.anno { font-family: var(--font-num); font-size: 12px; letter-spacing: .18em; color: var(--mist-400); text-transform: uppercase; }
.anno--v { writing-mode: vertical-rl; text-orientation: mixed; }
.anno--cyan { color: var(--cyan-400); }
.anno--accent { color: var(--orange-500); }

/* ---------- 8. Bento 网格 ---------- */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); }
.bento__cell {
  position: relative;
  min-width: 0;
  padding: 22px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  transition: transform var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.bento__cell:hover { transform: translateY(-2px); border-color: var(--cyan-400); }
.cell--3 { grid-column: span 3; }
.cell--4 { grid-column: span 4; }
.cell--5 { grid-column: span 5; }
.cell--6 { grid-column: span 6; }
.cell--7 { grid-column: span 7; }
.cell--8 { grid-column: span 8; }
.cell--12 { grid-column: span 12; }
@media (max-width: 1023px) {
  .cell--3, .cell--4, .cell--5 { grid-column: span 6; }
  .cell--6, .cell--7, .cell--8 { grid-column: span 12; }
}
@media (max-width: 639px) {
  .bento { gap: 14px; }
  .cell--3, .cell--4, .cell--5, .cell--6, .cell--7, .cell--8 { grid-column: span 12; }
}

/* ---------- 9. 图片 / SVG 容器基础规则（页面阶段放图用） ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background: var(--ink-800);
  border: 1px solid var(--line);
}
.media-frame > img,
.media-frame > svg,
.media-frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--21x9 { aspect-ratio: 21 / 9; }
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--3x2 { aspect-ratio: 3 / 2; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame__fallback {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(44, 242, 200, .12), transparent 58%),
    linear-gradient(0deg, rgba(255, 122, 26, .1), transparent 62%),
    var(--ink-800);
}
.media-frame__fallback::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(44, 242, 200, .11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 242, 200, .11) 1px, transparent 1px);
  background-size: 28px 28px;
}
.media-frame__tag {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: var(--ink-950);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--cyan-400);
}

/* ---------- 10. 可展开组 ---------- */
.fold { border: 1px solid var(--line); background: var(--ink-900); }
.fold + .fold { margin-top: -1px; }
.fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .04em;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.fold__summary::-webkit-details-marker { display: none; }
.fold__summary::after {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-right: 1px solid var(--cyan-400);
  border-bottom: 1px solid var(--cyan-400);
  transform: rotate(45deg);
  transition: transform var(--t-mid) var(--ease);
}
.fold__summary:hover { background: var(--ink-800); }
.fold[open] > .fold__summary { background: var(--ink-800); color: var(--cyan-400); }
.fold[open] > .fold__summary::after { transform: rotate(-135deg); }
.fold__body { padding: 4px 20px 20px; border-top: 1px solid var(--line-soft); color: var(--mist-400); font-size: 15px; }
.fold__body p + p { margin-top: 10px; }

/* ---------- 11. 数据表 ---------- */
.data-table { font-variant-numeric: tabular-nums; }
.data-table th {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  text-align: left;
  color: var(--mist-400);
}
.data-table td { padding: 12px; border-bottom: 1px solid var(--line-soft); font-size: 14px; }
.data-table tbody tr:nth-child(odd) { background: var(--ink-800); }
.data-table td b { font-family: var(--font-num); color: var(--cyan-400); }

/* ---------- 12. 显现动画 ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--t-mid) var(--ease), transform var(--t-mid) var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ============================================================
   头部外壳
   ============================================================ */
.site-header { position: relative; z-index: 40; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -90px;
  z-index: 60;
  padding: 10px 18px;
  background: var(--cyan-400);
  color: var(--ink-950);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
  transition: top var(--t-fast) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { top: 16px; outline-offset: 0; }
@media (min-width: 1024px) { .skip-link { left: calc(var(--rail-w) + 16px); } }

/* --- 侧边轨道 --- */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 45;
  display: flex;
  flex-direction: column;
  width: min(82vw, 264px);
  overflow: hidden;
  background: var(--ink-900);
  border-right: 1px solid var(--line);
  transform: translateX(-102%);
  transition: transform var(--t-mid) var(--ease);
}
.rail[data-open="true"] { transform: translateX(0); }

.rail__brand { flex: none; padding: 18px; border-bottom: 1px solid var(--line-soft); }
.rail__logo { display: flex; align-items: center; gap: 12px; }
.rail__logo-mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 34px;
  height: 34px;
  background: var(--cyan-400);
  color: var(--ink-950);
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 700;
}
.rail__logo-word {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .1em;
}

.rail__nav { flex: 1 1 auto; overflow-y: auto; overflow-x: hidden; padding: 10px 0; }
.rail__list { display: flex; flex-direction: column; gap: 2px; }
.rail__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 18px;
  border-left: 2px solid transparent;
  color: var(--mist-400);
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}
.rail__idx { font-family: var(--font-num); font-size: 10px; letter-spacing: .12em; color: var(--cyan-700); }
.rail__label {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .12em;
}
.rail__link:hover { background: var(--ink-800); color: var(--paper-100); }
.rail__link[aria-current="page"] {
  background: rgba(44, 242, 200, .07);
  border-left-color: var(--cyan-400);
  color: var(--cyan-400);
}
.rail__link[aria-current="page"] .rail__idx { color: var(--orange-500); }

.rail__meta {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 14px 18px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--mist-400);
}
.rail__pulse {
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--orange-500);
  animation: bs-pulse 1.8s ease-in-out infinite;
}

@media (min-width: 1024px) {
  .rail { width: var(--rail-w); transform: none; transition: none; }
  .rail__brand { padding: 18px 0 14px; }
  .rail__logo { flex-direction: column; gap: 10px; }
  .rail__logo-mark { width: 32px; height: 32px; font-size: 12px; }
  .rail__logo-word { writing-mode: vertical-rl; font-size: 14px; letter-spacing: .3em; }
  .rail__nav { padding: 8px 0; }
  .rail__link { flex-direction: column; align-items: center; gap: 8px; padding: 14px 2px; }
  .rail__label { writing-mode: vertical-rl; font-size: 14px; letter-spacing: .22em; }
  .rail__meta { flex-direction: column; justify-content: center; padding: 14px 8px; text-align: center; line-height: 1.6; }
}

/* --- 遮罩 --- */
.nav-scrim {
  position: fixed;
  inset: 0;
  z-index: 44;
  background: rgba(4, 18, 15, .72);
}
.nav-scrim[hidden] { display: none; }

/* --- 顶栏 --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(7, 32, 27, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 26px);
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px var(--pad);
  min-height: 64px;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  color: var(--cyan-400);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .18em;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}
.nav-toggle:hover { background: var(--ink-800); }
.nav-toggle__bars { display: grid; gap: 4px; width: 16px; }
.nav-toggle__bars i { display: block; height: 1px; background: currentColor; transition: transform var(--t-mid) var(--ease), opacity var(--t-fast) var(--ease); }
.nav-toggle__text { line-height: 1; }
.nav-toggle[aria-expanded="true"] { background: var(--cyan-400); border-color: var(--cyan-400); color: var(--ink-950); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
@media (min-width: 1024px) { .nav-toggle { display: none; } }

.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--cyan-400);
  color: var(--cyan-400);
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.brand:hover .brand__mark { background: var(--cyan-400); color: var(--ink-950); }
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__name { font-family: var(--font-display); font-stretch: condensed; font-size: 19px; font-weight: 700; letter-spacing: .06em; }
.brand__line { font-family: var(--font-num); font-size: 10px; letter-spacing: .2em; color: var(--mist-400); }
@media (max-width: 559px) { .brand__line { display: none; } }

.axis-switch {
  display: flex;
  align-items: stretch;
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--ink-950);
}
.axis-switch__caption { display: none; }
.axis-switch__btn {
  padding: 8px 16px;
  color: var(--mist-400);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  transition: background-color var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.axis-switch__btn + .axis-switch__btn { border-left: 1px solid var(--line); }
.axis-switch__btn:hover { background: var(--ink-800); color: var(--paper-100); }
.axis-switch__btn[aria-pressed="true"] { background: var(--cyan-400); color: var(--ink-950); }
@media (min-width: 1280px) {
  .axis-switch__caption {
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-family: var(--font-num);
    font-size: 10px;
    letter-spacing: .2em;
    color: var(--mist-400);
    border-right: 1px solid var(--line);
  }
}
@media (max-width: 719px) { .axis-switch { display: none; } }

.topbar__tail { display: flex; align-items: center; gap: 18px; }
.axis-switch + .topbar__tail { margin-left: 0; }
.axis-switch:not(:last-child) { margin-right: 0; }
.qcontact { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.35; }
.qcontact__k { font-family: var(--font-num); font-size: 10px; letter-spacing: .2em; color: var(--mist-400); }
.qcontact__v { font-family: var(--font-num); font-size: 14px; letter-spacing: .04em; color: var(--amber-300); }
@media (max-width: 1023px) { .qcontact { display: none; } }

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(14, 140, 119, .22);
}
.scroll-progress i {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan-400), var(--orange-500));
  transform: scaleX(0);
  transform-origin: left center;
}

/* ============================================================
   页脚外壳
   ============================================================ */
.site-footer {
  position: relative;
  z-index: 10;
  background: var(--ink-900);
  border-top: 1px solid var(--line);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan-400) 0 34%, var(--orange-500) 34% 42%, transparent 42%);
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1px;
  max-width: var(--maxw);
  margin: 0 auto;
  background: var(--line-soft);
}
.footer__col { background: var(--ink-900); padding: clamp(20px, 3vw, 34px); min-width: 0; }
.footer__col--brand { grid-column: span 4; }
.footer__col--index { grid-column: span 2; }
.footer__col--contact { grid-column: span 3; }
.footer__col--legal { grid-column: span 3; }

.footer__brand {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--paper-100);
}
.footer__brand em { font-style: normal; color: var(--cyan-400); }
.footer__line { margin-top: 10px; font-family: var(--font-num); font-size: 11px; letter-spacing: .2em; color: var(--cyan-400); }
.footer__note { margin-top: 14px; max-width: 36ch; font-size: 13px; line-height: 1.7; color: var(--mist-400); }
.footer__bars { display: flex; align-items: flex-end; gap: 6px; height: 26px; margin-top: 18px; }
.footer__bars span { display: block; width: 6px; }
.footer__bars span:nth-child(1) { height: 40%; background: var(--cyan-700); }
.footer__bars span:nth-child(2) { height: 70%; background: var(--cyan-400); }
.footer__bars span:nth-child(3) { height: 52%; background: var(--cyan-700); }
.footer__bars span:nth-child(4) { height: 100%; background: var(--orange-500); }
.footer__bars span:nth-child(5) { height: 64%; background: var(--cyan-400); }

.footer__title {
  margin-bottom: 16px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .24em;
  color: var(--mist-400);
}
.footer__list { display: grid; gap: 10px; }
.footer__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--paper-100);
  transition: color var(--t-fast) var(--ease);
}
.footer__list a::before {
  content: "";
  width: 12px;
  height: 1px;
  background: var(--cyan-700);
  transition: width var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}
.footer__list a:hover { color: var(--cyan-400); }
.footer__list a:hover::before { width: 20px; background: var(--cyan-400); }
.footer__list--plain li { font-size: 13px; line-height: 1.7; color: var(--mist-400); word-break: break-word; }
.footer__list--plain strong { font-family: var(--font-num); font-weight: 600; color: var(--amber-300); letter-spacing: .02em; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px var(--pad) 22px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--mist-400);
}
.footer__copy { max-width: none; }
.footer__stamp { color: var(--cyan-400); }
.footer__icp { color: var(--mist-400); }

@media (max-width: 1023px) {
  .footer__col--brand { grid-column: span 12; }
  .footer__col--index { grid-column: span 4; }
  .footer__col--contact { grid-column: span 8; }
  .footer__col--legal { grid-column: span 12; }
}
@media (max-width: 639px) {
  .footer__col--index,
  .footer__col--contact,
  .footer__col--legal { grid-column: span 12; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 13. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .bento__cell:hover { transform: none; }
}