/* ==========================================================================
   亚星体育 · 全站共享样式 /assets/site.css
   深夜球场 / 战术板：深空蓝底 + 炭黑导航框 + 荧光青边线 + 脉冲橙节点
   ========================================================================== */

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

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

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

ul, ol { list-style: none; }

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

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

table { border-collapse: collapse; }

fieldset { border: 0; margin: 0; padding: 0; }

/* ---------- 2. 变量 ---------- */
:root {
  --ink-900: #0A1633;
  --ink-800: #10204A;
  --ink-000: #0E1116;
  --paper: #F2F5FA;
  --mist: #A8B8D4;
  --cyan: #2FE6C8;
  --cyan-soft: rgba(47, 230, 200, .45);
  --pulse: #FF7A2F;
  --volt: #3D6BFF;
  --tactic: #FFD166;
  --board: #E8EDF7;

  --line: rgba(168, 184, 212, .16);
  --line-strong: rgba(168, 184, 212, .34);
  --grid-line: rgba(168, 184, 212, .07);

  --rail-w: 232px;
  --top-h: 64px;
  --frame: 3px;
  --pad-x: 64px;
  --shadow-hard: 6px 6px 0 0 #0E1116;

  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --ease: 160ms ease;
}

/* ---------- 3. 页面基底 ---------- */
html { scroll-padding-top: calc(var(--top-h) + 24px); }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  min-height: 100vh;
  padding-top: var(--top-h);
  padding-left: var(--rail-w);
  background-color: var(--ink-900);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

main { display: block; position: relative; }

/* ---------- 4. 中文排版 ---------- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-head);
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -.5px;
  line-height: 1.1;
  color: var(--paper);
  text-wrap: balance;
}

h1 { font-size: clamp(2.4rem, 7vw, 5.75rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2.6vw, 1.875rem); }
h4 { font-size: 1.25rem; letter-spacing: -.2px; }

p { text-wrap: pretty; }

strong { font-weight: 800; color: var(--paper); }

::selection { background: var(--cyan); color: var(--ink-000); }

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.num, .mono { font-family: var(--font-num); font-weight: 700; letter-spacing: .08em; }

.eyebrow {
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--cyan);
  text-transform: uppercase;
}

.lead {
  font-size: 19px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 62ch;
}

.link { color: var(--volt); text-decoration: underline; text-underline-offset: 3px; transition: color var(--ease); }
.link:hover { color: var(--cyan); }

.is-hidden { display: none !important; }

/* ---------- 5. 页面骨架 ---------- */
.wrap {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section { padding: 56px 0; }

.section__rule {
  position: relative;
  height: var(--frame);
  background: var(--ink-800);
  margin-bottom: 28px;
}

.section__rule::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 12px;
  height: var(--frame);
  background: var(--cyan);
}

.grid { display: grid; gap: 24px; }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.grid--7-5 { grid-template-columns: 7fr 5fr; }
.grid--8-4 { grid-template-columns: 8fr 4fr; }
.grid--split { grid-template-columns: 1fr 1fr; }

.notation {
  border-left: 1px solid var(--line-strong);
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 6. 头部：框架式导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
}

.skip-link {
  position: absolute;
  left: 8px;
  top: -72px;
  z-index: 99;
  padding: 10px 18px;
  background: var(--cyan);
  color: var(--ink-000);
  font-weight: 800;
  font-size: 15px;
  border: var(--frame) solid var(--ink-000);
  transition: top var(--ease);
}

.skip-link:focus { top: 8px; }

.progress-bar {
  position: absolute;
  left: 0;
  top: calc(var(--top-h) - var(--frame));
  height: var(--frame);
  width: 0;
  background: var(--cyan);
  z-index: 2;
  transition: width 120ms linear;
}

.masthead {
  display: flex;
  align-items: center;
  gap: 18px;
  height: var(--top-h);
  padding: 0 20px;
  background: var(--ink-000);
  color: var(--paper);
  border-bottom: var(--frame) solid var(--cyan-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  transition: transform var(--ease);
}

.brand:hover { transform: translateX(2px); }

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--cyan);
  color: var(--ink-000);
  border: 2px solid var(--paper);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  line-height: 1;
}

.brand__text { display: flex; flex-direction: column; line-height: 1.15; }

.brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 18px;
  letter-spacing: .04em;
}

.brand__sub {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mist);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  white-space: nowrap;
  background: var(--ink-800);
  color: var(--paper);
  border: 1px solid var(--line-strong);
  transition: color var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.chip--ios {
  color: var(--cyan);
  border-color: rgba(47, 230, 200, .6);
  box-shadow: 0 0 0 1px rgba(47, 230, 200, .18), 0 0 12px -6px rgba(47, 230, 200, .9);
}

.chip--ios:hover,
.chip--ios:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-000);
}

.masthead__chip { display: none; flex: 0 0 auto; }

.ticker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
  min-width: 0;
  overflow: hidden;
}

.ticker__label {
  flex: 0 0 auto;
  padding: 3px 7px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
  border: 1px solid rgba(47, 230, 200, .5);
}

.ticker__list { display: flex; gap: 10px; min-width: 0; overflow: hidden; }

.ticker__item {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 4px 10px;
  background: var(--ink-800);
  border: 1px solid var(--line-strong);
}

.ticker__team { font-size: 13px; color: var(--paper); }

.ticker__score {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.ticker__min {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--pulse);
}

.ticker__meta {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 11px;
  color: var(--mist);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--paper);
  border: 1px solid var(--line-strong);
  transition: color var(--ease), border-color var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible { color: var(--cyan); border-color: var(--cyan); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after { top: 5px; }

.rail {
  position: fixed;
  top: var(--top-h);
  left: 0;
  bottom: 0;
  z-index: 78;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  padding: 20px 0 0;
  background: var(--ink-000);
  border-right: var(--frame) solid var(--cyan-soft);
  overflow-y: auto;
}

.rail__title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 18px 12px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--mist);
}

.rail__title::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.rail__list { display: flex; flex-direction: column; }

.rail__item { border-bottom: 1px solid var(--line); }
.rail__item--chip { padding-bottom: 10px; }

.rail__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  font-weight: 700;
  font-size: 16px;
  color: var(--mist);
  transition: color var(--ease), background var(--ease), transform var(--ease);
}

.rail__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--frame);
  background: transparent;
  transition: background var(--ease);
}

.rail__link:hover,
.rail__link:focus-visible {
  color: var(--paper);
  background: var(--ink-800);
  transform: translateX(2px);
}

.rail__link:hover::before,
.rail__link:focus-visible::before { background: var(--cyan); }

.rail__link[aria-current="page"] {
  color: var(--paper);
  background: var(--ink-800);
}

.rail__link[aria-current="page"]::before { background: var(--cyan); }

.rail__num {
  flex: 0 0 auto;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cyan);
}

.rail__label { letter-spacing: .02em; }

.rail__chip { margin: 0 18px 4px; }

.rail__foot {
  margin-top: auto;
  padding: 16px 18px 20px;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--mist);
}

/* ---------- 7. 页脚 ---------- */
.site-footer {
  margin-top: 80px;
  padding: 0 var(--pad-x);
  background: var(--ink-000);
  color: var(--mist);
  border-top: var(--frame) solid var(--cyan);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 0;
  max-width: 1320px;
  margin: 0 auto;
  padding-top: 52px;
}

.footer__col { padding: 0 28px 40px 0; min-width: 0; }

.footer__col + .footer__col {
  border-left: 1px solid var(--line);
  padding-left: 28px;
}

.footer__brand {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 24px;
  letter-spacing: -.5px;
  color: var(--paper);
}

.footer__desc { margin-top: 12px; font-size: 15px; line-height: 1.7; max-width: 34ch; }

.footer__badge {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--tactic);
  border: 1px solid rgba(255, 209, 102, .5);
}

.footer__title {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--paper);
  margin-bottom: 16px;
}

.footer__list { display: flex; flex-direction: column; gap: 10px; font-size: 15px; }

.footer__list a {
  display: inline-block;
  color: var(--mist);
  transition: color var(--ease), transform var(--ease);
}

.footer__list a:hover,
.footer__list a:focus-visible {
  color: var(--cyan);
  transform: translateX(2px);
}

.footer__list--plain { gap: 12px; line-height: 1.6; }

.footer__k {
  display: block;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--cyan);
}

.footer__note {
  margin-top: 14px;
  font-size: 13px;
  color: var(--mist);
}

.footer__cta { margin-top: 20px; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 1320px;
  margin: 0 auto;
  padding: 18px 0 26px;
  border-top: 1px solid var(--line);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
}

.footer__icp { color: var(--tactic); }

/* ---------- 8. 通用组件 ---------- */
.panel {
  background: var(--ink-800);
  border: var(--frame) solid var(--ink-000);
  box-shadow: var(--shadow-hard);
  padding: 24px;
}

.panel--flat { background: transparent; box-shadow: none; }

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-strong);
}

.panel__title { font-size: 20px; font-weight: 800; letter-spacing: -.2px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--ink-000);
  background: var(--paper);
  border: var(--frame) solid var(--ink-000);
  box-shadow: var(--shadow-hard);
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
}

.btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 0 var(--ink-000);
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 3px 3px 0 0 var(--ink-000);
}

.btn--primary { background: var(--cyan); border-color: var(--ink-000); color: var(--ink-000); }

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
  box-shadow: 6px 6px 0 0 rgba(47, 230, 200, .45);
}

.btn--ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 8px 8px 0 0 rgba(47, 230, 200, .45);
}

.tag {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--mist);
  border: 1px solid var(--mist);
}

.tag--cyan { color: var(--cyan); border-color: rgba(47, 230, 200, .6); }
.tag--pulse { color: var(--pulse); border-color: rgba(255, 122, 47, .65); }
.tag--tactic { color: var(--ink-000); background: var(--tactic); border-color: var(--tactic); }

.data-table {
  width: 100%;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.data-table th,
.data-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.data-table thead th {
  background: var(--ink-000);
  color: var(--paper);
  font-size: 13px;
  letter-spacing: .1em;
  border-bottom: var(--frame) solid var(--cyan);
  white-space: nowrap;
}

.data-table tbody tr:nth-child(odd) { background: rgba(16, 32, 74, .5); }

.data-table tbody tr:hover { background: var(--ink-800); }

.data-table .num { color: var(--cyan); }

.data-table th[aria-sort] { color: var(--tactic); }

.breadcrumb { margin: 24px 0 0; font-size: 14px; color: var(--mist); }

.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }

.breadcrumb__item:not(:first-child)::before {
  content: "/";
  margin-right: 8px;
  color: rgba(168, 184, 212, .5);
}

.breadcrumb__item a { transition: color var(--ease); }
.breadcrumb__item a:hover { color: var(--cyan); }

.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900) 65%);
  border: var(--frame) solid var(--ink-000);
  box-shadow: var(--shadow-hard);
}

.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) contrast(1.05);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 22, 51, 0) 45%, rgba(10, 22, 51, .78));
  pointer-events: none;
}

.media-frame--21x9 { aspect-ratio: 21 / 9; }
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }

.media-frame--empty {
  display: grid;
  place-items: center;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
}

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 1;
  margin: 16px;
  padding: 4px 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper);
  background: rgba(14, 17, 22, .82);
  border-left: var(--frame) solid var(--cyan);
}

.filter { display: flex; flex-wrap: wrap; gap: 10px; }

.filter__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.filter__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--mist);
  border: 2px solid var(--line-strong);
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.filter__label:hover { color: var(--paper); border-color: var(--paper); }

.filter__input:checked + .filter__label {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-000);
}

.filter__input:focus-visible + .filter__label {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.toc {
  position: sticky;
  top: calc(var(--top-h) + 24px);
  font-size: 14px;
}

.toc__title {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--cyan);
  margin-bottom: 12px;
}

.toc__list { display: flex; flex-direction: column; border-left: 1px solid var(--line); }

.toc__link {
  display: block;
  padding: 8px 0 8px 14px;
  margin-left: -2px;
  color: var(--mist);
  border-left: var(--frame) solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.toc__link:hover { color: var(--paper); }

.toc__link[aria-current] { color: var(--cyan); border-left-color: var(--cyan); }

.prose {
  max-width: 72ch;
  font-size: 17px;
  line-height: 1.75;
}

.prose p + p { margin-top: 1em; }
.prose h2 { margin-top: 1.6em; margin-bottom: .5em; }
.prose h3 { margin-top: 1.4em; margin-bottom: .4em; }
.prose ul { margin: 1em 0; padding-left: 0; }
.prose ul li { position: relative; padding-left: 20px; }
.prose ul li + li { margin-top: .5em; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 3px;
  background: var(--cyan);
}
.prose a { color: var(--volt); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--cyan); }

.doc-board {
  padding: 48px;
  background: var(--board);
  color: #12203C;
  border: var(--frame) solid var(--ink-000);
  box-shadow: 8px 8px 0 0 var(--ink-000);
}

.doc-board h2,
.doc-board h3 { color: #0A1633; }

.doc-board p,
.doc-board li { color: #16233F; }

.doc-board a { color: #1B3AE0; text-decoration: underline; text-underline-offset: 3px; }
.doc-board a:hover { color: #0B5B4E; }

.doc-board .num,
.doc-board .mono { color: #0B5B4E; }

.doc-board .section__rule { background: rgba(10, 22, 51, .18); }

/* ---------- 9. 响应式 ---------- */
@media (max-width: 1200px) {
  :root { --pad-x: 40px; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer__col--brand { grid-column: 1 / -1; border-bottom: 1px solid var(--line); padding-right: 0; margin-bottom: 32px; }
  .footer__col--brand + .footer__col { border-left: 0; padding-left: 0; }
  .ticker__item:nth-child(n + 3) { display: none; }
}

@media (max-width: 1024px) {
  :root { --pad-x: 32px; }
  body { padding-left: 0; }

  .nav-toggle { display: inline-flex; }
  .masthead__chip { display: inline-flex; }
  .ticker__label,
  .ticker__meta { display: none; }

  .rail {
    top: var(--top-h);
    width: min(320px, 86vw);
    transform: translateX(-102%);
    border-right: var(--frame) solid var(--cyan);
    box-shadow: 8px 8px 0 0 rgba(14, 17, 22, .7);
    transition: transform 200ms ease;
  }

  .rail[data-open] { transform: translateX(0); }

  .grid--7-5,
  .grid--8-4,
  .grid--split { grid-template-columns: 1fr; }

  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__col { padding-right: 20px; }
  .footer__col + .footer__col { padding-left: 20px; }
  .footer__col:nth-child(odd) { border-left: 0; padding-left: 0; }
  .doc-board { padding: 32px; }
}

@media (max-width: 720px) {
  :root { --pad-x: 20px; }

  body { font-size: 16px; }
  .masthead { gap: 12px; padding: 0 12px; }
  .brand__sub { display: none; }
  .ticker__item { padding: 3px 8px; gap: 6px; }
  .ticker__team { font-size: 12px; }
  .ticker__score { font-size: 14px; }
  .nav-toggle__text { display: none; }
  .section { padding: 40px 0; }
  .panel { padding: 18px; }
  .doc-board { padding: 22px; box-shadow: 6px 6px 0 0 var(--ink-000); }
  .footer__grid { grid-template-columns: 1fr; padding-top: 36px; }
  .footer__col { border-left: 0 !important; padding-left: 0 !important; padding-right: 0; padding-bottom: 28px; }
  .footer__col + .footer__col { border-top: 1px solid var(--line); padding-top: 24px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .brand__text { display: none; }
  .brand__mark { width: 30px; height: 30px; font-size: 16px; }
  .ticker__item:nth-child(n + 2) { display: none; }
  .masthead__chip { padding: 4px 8px; font-size: 11px; }
}

/* ---------- 10. 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  .brand:hover,
  .rail__link:hover,
  .rail__link:focus-visible,
  .footer__list a:hover,
  .footer__list a:focus-visible,
  .btn:hover,
  .btn:active { transform: none; }

  .rail[data-open] { transform: none; }
  .progress-bar { transition: none; }
}