/* =========================================================
   赏金电竞 · 共享外壳样式  /assets/site.css
   轨道 + 赛程带 + 斜切 + 发丝线 的双轴框架
   ========================================================= */

/* ---------- 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, hr { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }
input, button, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
hr { border: 0; height: 1px; background: var(--hair); }
::selection { background: var(--purple); color: #0A0713; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 色彩 */
  --abyss: #0A0713;
  --zone: #130C22;
  --panel: #1B1230;
  --hair: #2E2246;
  --hair-soft: rgba(46, 34, 70, .62);
  --purple: #8B5CF6;
  --purple-glow: #B388FF;
  --gold: #FF7A18;
  --gold-hi: #FFC24B;
  --cyan: #2BE3D6;
  --white: #F4F1EA;
  --mist: #A79FC0;
  --green: #4ADE80;
  --focus: #B388FF;

  /* 字体 */
  --font-display: "Oswald", "Saira Condensed", "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  --font-body: "PingFang SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  /* 骨架尺寸 */
  --band-h: 44px;
  --bar-h: 0px;
  --rail-w: 240px;
  --rail-pad-x: 20px;
  --shell-top: var(--band-h);
  --gutter: clamp(18px, 3.2vw, 48px);
  --radius: 2px;
  --skew: 14deg;
  --ease: cubic-bezier(.22, .7, .28, 1);
  --shadow-lift: 0 14px 34px -20px rgba(0, 0, 0, .95);

  color-scheme: dark;
}

/* ---------- 3. 基础排版与底纹 ---------- */
body {
  position: relative;
  min-height: 100vh;
  background: var(--abyss);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  padding-left: var(--rail-w);
  padding-top: var(--shell-top);
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(139, 92, 246, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, .05) 1px, transparent 1px),
    radial-gradient(120% 90% at 78% -10%, rgba(139, 92, 246, .16), transparent 60%),
    radial-gradient(90% 70% at 6% 108%, rgba(255, 122, 24, .1), transparent 62%);
  background-size: 64px 64px, 64px 64px, 100% 100%, 100% 100%;
}
main { position: relative; z-index: 1; display: block; }
main:focus { outline: none; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: .01em;
  color: var(--white);
}
h1, .h1 { font-size: clamp(30px, 4.6vw, 44px); }
h2, .h2 { font-size: clamp(24px, 3.2vw, 32px); }
h3, .h3 { font-size: clamp(19px, 2.2vw, 24px); }
h4, .h4 { font-size: 18px; font-weight: 700; }
p { color: inherit; }
strong { color: var(--white); font-weight: 700; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 1px;
}

/* ---------- 4. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 0;
  left: var(--rail-w);
  z-index: 200;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  background: var(--gold);
  color: #1A0800;
  font-weight: 700;
  transform: translateY(-130%);
  transition: transform .18s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

/* ---------- 5. 顶部赛程带 ---------- */
.site-header { position: relative; }
.schedule-band {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--band-h);
  z-index: 70;
  display: flex;
  align-items: center;
  gap: 14px;
  padding-left: 14px;
  overflow: hidden;
  background: linear-gradient(90deg, #180C29 0%, #0D0819 42%, #0A0713 100%);
  border-bottom: 1px solid var(--hair);
}
.schedule-band::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0; top: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--purple), var(--gold));
}
.band-tag {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-right: 14px;
  border-right: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold-hi);
}
.band-tag::before {
  content: "";
  width: 6px; height: 6px;
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
  transform: rotate(45deg);
}
.band-track {
  flex: 1 1 auto;
  height: 100%;
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.band-track::-webkit-scrollbar { display: none; }
.band-item {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 100%;
  padding: 0 16px;
  border-right: 1px solid var(--hair-soft);
  white-space: nowrap;
  font-size: 12px;
  color: var(--mist);
}
.band-item b {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--white);
}
.band-item.is-live b { color: var(--white); }
.band-time {
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--gold-hi);
}
.band-venue { color: var(--mist); }
.band-dot {
  flex: none;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.band-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--purple), var(--cyan) 60%, var(--gold));
  box-shadow: 0 0 12px rgba(139, 92, 246, .55);
  transition: width .1s linear;
}

/* ---------- 6. 侧边品牌轨道 ---------- */
.rail {
  position: fixed;
  top: var(--band-h);
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 26px var(--rail-pad-x) 22px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: linear-gradient(180deg, #150D26 0%, #0A0713 78%);
  border-right: 1px solid var(--hair);
}
.rail::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; right: -1px;
  width: 1px;
  background: linear-gradient(180deg, var(--purple) 0%, transparent 38%, transparent 68%, var(--gold) 100%);
  opacity: .5;
  pointer-events: none;
}
.rail__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hair);
}
.rail__mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: #12060A;
  background: linear-gradient(135deg, var(--purple) 0%, var(--gold) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}
.rail__brand-text { display: flex; flex-direction: column; min-width: 0; }
.rail__wordmark {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .08em;
  line-height: 1.2;
  color: var(--white);
}
.rail__tagline {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--mist);
  margin-top: 2px;
}
.rail__nav { flex: 1 1 auto; min-height: 0; }
.rail__list { display: flex; flex-direction: column; gap: 2px; }
.rail__item { position: relative; }
.rail__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 8px 11px 0;
  font-size: 15px;
  color: var(--mist);
  transition: color .18s var(--ease), background-color .18s var(--ease);
}
.rail__link::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--rail-pad-x));
  top: 7px;
  bottom: 7px;
  width: 2px;
  background: transparent;
  transition: background-color .18s var(--ease);
}
.rail__link:hover { color: var(--white); background: rgba(139, 92, 246, .09); }
.rail__link:hover .rail__idx { color: var(--purple-glow); }
.rail__link[aria-current="page"] {
  color: var(--white);
  background: linear-gradient(90deg, rgba(255, 122, 24, .12), rgba(139, 92, 246, .06));
}
.rail__link[aria-current="page"]::before { background: var(--gold); }
.rail__link[aria-current="page"] .rail__idx { color: var(--gold-hi); }
.rail__idx {
  flex: none;
  width: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: #5B4E78;
  transition: color .18s var(--ease);
}
.rail__label { min-width: 0; }
.rail__foot {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.rail__cta { width: 100%; }
.rail__note {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--mist);
}

/* 遮罩 */
.rail-scrim {
  position: fixed;
  inset: 0;
  z-index: 58;
  background: rgba(6, 3, 12, .74);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s var(--ease), visibility .22s var(--ease);
}
.site-header[data-open] .rail-scrim { opacity: 1; visibility: visible; }

/* ---------- 7. 移动端条与开关 ---------- */
.mobile-bar {
  display: none;
  position: fixed;
  top: var(--band-h);
  left: 0;
  right: 0;
  height: var(--bar-h);
  z-index: 65;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: rgba(10, 7, 19, .95);
  border-bottom: 1px solid var(--hair);
  backdrop-filter: blur(8px);
}
.mobile-bar__brand { display: flex; align-items: center; gap: 10px; }
.mobile-bar__brand .rail__mark { width: 30px; height: 30px; font-size: 14px; }
.mobile-bar__name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .08em;
}
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--hair);
  color: var(--white);
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}
.nav-toggle:hover { border-color: var(--purple-glow); background: rgba(139, 92, 246, .12); }
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--white);
  transition: transform .2s var(--ease), opacity .2s var(--ease), background-color .2s var(--ease);
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before { position: absolute; top: -6px; }
.nav-toggle__bars::after { position: absolute; top: 6px; }
.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 8. 通用按钮 ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 20px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .02em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
}
.btn--gold {
  background: linear-gradient(135deg, #FF9A3C 0%, var(--gold) 60%, #EE6A0A 100%);
  color: #1A0800;
  font-weight: 700;
  overflow: hidden;
}
.btn--gold::after {
  content: "";
  position: absolute;
  right: 0; bottom: 0;
  width: 10px; height: 10px;
  background: linear-gradient(135deg, transparent 50%, rgba(10, 7, 19, .6) 50%);
}
.btn--gold:hover { background: linear-gradient(135deg, var(--gold-hi) 0%, var(--gold) 100%); }
.btn--gold:active { transform: translateY(1px); }
.btn--ghost {
  background: rgba(139, 92, 246, .06);
  border-color: var(--hair);
  color: var(--white);
}
.btn--ghost:hover {
  border-color: var(--purple-glow);
  color: var(--purple-glow);
  background: rgba(139, 92, 246, .14);
}

/* ---------- 9. 布局骨架 ---------- */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { position: relative; padding: clamp(46px, 7vw, 96px) 0; }
.section--zone {
  background: linear-gradient(180deg, var(--zone) 0%, #0E0920 100%);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.section__head { max-width: 62ch; margin-bottom: clamp(22px, 3vw, 38px); }
.section__head::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 18px;
  background: linear-gradient(90deg, var(--purple), var(--hair) 45%, transparent);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--purple-glow);
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--gold); }
.hairline { height: 1px; background: var(--hair); border: 0; margin: 0; }

.grid { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--asym { grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }

.slab {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--hair);
}
.slab--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

/* ---------- 10. 卡片 / 标签 / 数据 ---------- */
.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  padding: clamp(18px, 2.4vw, 26px);
}
.card--zone { background: var(--zone); }
.card--link { transition: border-color .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease); }
.card--link:hover {
  border-color: var(--purple);
  box-shadow: var(--shadow-lift);
  transform: translateY(-2px);
}
.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}
.card__title {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--white);
}
.card__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mist);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--hair);
  border-radius: 1px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mist);
}
.tag--purple { color: var(--purple-glow); border-color: rgba(139, 92, 246, .42); background: rgba(139, 92, 246, .1); }
.tag--gold { color: var(--gold-hi); border-color: rgba(255, 122, 24, .4); background: rgba(255, 122, 24, .08); }
.tag--cyan { color: var(--cyan); border-color: rgba(43, 227, 214, .34); background: rgba(43, 227, 214, .07); }
.tag--live { color: var(--green); border-color: rgba(74, 222, 128, .34); }
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1;
  color: var(--gold-hi);
}
.stat__label { font-size: 12.5px; color: var(--mist); }
.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  color: var(--gold-hi);
}
.num--cyan { color: var(--cyan); }
.num--white { color: var(--white); }

.index-list { border-top: 1px solid var(--hair); }
.index-list__item {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
}

/* ---------- 11. 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(140deg, #1B1230 0%, #0F0A1C 100%);
  border: 1px solid var(--hair);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 7, 19, 0) 42%, rgba(10, 7, 19, .74) 100%);
}
.media-frame:empty::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 227, 214, .12) 1px, transparent 1px);
  background-size: 32px 32px, 32px 32px;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--plain::after { display: none; }

/* ---------- 12. 正文 / 面包屑 ---------- */
.prose { max-width: 34em; color: #DDD7E8; }
.prose p { margin-bottom: .8em; }
.prose p:last-child { margin-bottom: 0; }
.prose h2, .prose h3 { margin: 1.4em 0 .5em; }
.prose ul, .prose ol { margin: 0 0 .9em; padding-left: 1.1em; }
.prose li { margin-bottom: .35em; }
.prose a { color: var(--purple-glow); border-bottom: 1px solid rgba(179, 136, 255, .45); }

.breadcrumb { padding: 18px 0 0; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--mist);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item + .breadcrumb__item::before { content: "/"; color: var(--hair); }
.breadcrumb__item a:hover { color: var(--purple-glow); }
.breadcrumb__item [aria-current="page"] { color: var(--gold-hi); }

/* ---------- 13. 页脚 ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(48px, 8vw, 110px);
  background: linear-gradient(180deg, var(--zone) 0%, var(--abyss) 100%);
  border-top: 1px solid var(--hair);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 0;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, var(--purple) 0%, transparent 42%, var(--gold) 100%);
  opacity: .7;
}
.footer__inner {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding: clamp(36px, 6vw, 64px) var(--gutter) 28px;
}
.footer__top {
  display: grid;
  grid-template-columns: minmax(260px, 1.5fr) repeat(3, minmax(120px, 1fr));
  gap: clamp(24px, 4vw, 48px);
}
.footer__brandlink { display: flex; align-items: center; gap: 12px; }
.footer__brandname {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .08em;
  color: var(--white);
}
.footer__brandline { margin-top: 14px; font-size: 14px; color: var(--mist); }
.footer__domain {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--purple-glow);
}
.footer__copy { margin-top: 16px; }
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--mist);
  background: rgba(139, 92, 246, .06);
  transition: border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease);
}
.copy-btn::before {
  content: "";
  flex: none;
  width: 6px; height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
  transition: background-color .18s var(--ease);
}
.copy-btn:hover { border-color: var(--purple-glow); color: var(--white); background: rgba(139, 92, 246, .14); }
.copy-btn__text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.copy-btn.is-done { border-color: var(--gold); color: var(--gold-hi); }
.copy-btn.is-done::before { background: var(--gold); }
.footer__col { min-width: 0; }
.footer__title {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold-hi);
}
.footer__list { display: flex; flex-direction: column; }
.footer__link {
  display: inline-block;
  padding: 5px 0 6px;
  font-size: 14.5px;
  color: var(--mist);
  background-image: linear-gradient(var(--purple-glow), var(--purple-glow));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 1px;
  transition: color .16s var(--ease), background-size .22s var(--ease);
}
.footer__link:hover { color: var(--white); background-size: 100% 1px; }
.footer__contact {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid var(--hair);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer__contact-line {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  justify-content: space-between;
  align-items: center;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--hair);
}
.footer__legal-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--mist);
}

/* ---------- 14. 滚动显现 ---------- */
html.js-motion .reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
html.js-motion .reveal.is-visible { opacity: 1; transform: none; }
html.js-motion [data-stagger] > * {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}
html.js-motion [data-stagger].is-visible > * { opacity: 1; transform: none; }
html.js-motion [data-stagger].is-visible > :nth-child(1) { transition-delay: 0ms; }
html.js-motion [data-stagger].is-visible > :nth-child(2) { transition-delay: 70ms; }
html.js-motion [data-stagger].is-visible > :nth-child(3) { transition-delay: 140ms; }
html.js-motion [data-stagger].is-visible > :nth-child(4) { transition-delay: 210ms; }
html.js-motion [data-stagger].is-visible > :nth-child(5) { transition-delay: 280ms; }
html.js-motion [data-stagger].is-visible > :nth-child(6) { transition-delay: 350ms; }
html.js-motion [data-stagger].is-visible > :nth-child(7) { transition-delay: 420ms; }
html.js-motion [data-stagger].is-visible > :nth-child(8) { transition-delay: 490ms; }

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --rail-w: 84px; --rail-pad-x: 12px; }
  .rail { padding: 20px var(--rail-pad-x) 18px; }
  .rail__brand { justify-content: center; padding-bottom: 14px; margin-bottom: 18px; }
  .rail__brand-text { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
  .rail__link { justify-content: center; padding: 12px 0; }
  .rail__label { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
  .rail__idx { width: auto; font-size: 12px; }
  .rail__foot { display: none; }
  .footer__top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  :root {
    --rail-w: 0px;
    --bar-h: 56px;
    --shell-top: calc(var(--band-h) + var(--bar-h));
  }
  body { padding-left: 0; }
  .skip-link { left: 14px; }
  .mobile-bar { display: flex; }
  .rail {
    top: calc(var(--band-h) + var(--bar-h));
    width: min(86vw, 300px);
    z-index: 60;
    padding: 22px 20px 20px;
    transform: translateX(-102%);
    transition: transform .26s var(--ease);
    box-shadow: 18px 0 40px -28px rgba(0, 0, 0, .95);
  }
  .site-header[data-open] .rail { transform: translateX(0); }
  .rail__brand { justify-content: flex-start; }
  .rail__brand-text {
    position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal;
  }
  .rail__link { justify-content: flex-start; padding: 12px 8px 12px 0; }
  .rail__link::before { left: -20px; }
  .rail__label {
    position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal;
  }
  .rail__idx { width: 24px; }
  .rail__foot { display: flex; }
  .grid--3, .grid--asym { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .grid--2, .grid--3, .grid--asym { grid-template-columns: minmax(0, 1fr); }
  .footer__top { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .footer__legal { justify-content: flex-start; }
  .band-tag { display: none; }
}

@media (max-width: 480px) {
  .band-item { padding: 0 12px; gap: 8px; }
  .band-venue { display: none; }
}

/* ---------- 16. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html.js-motion .reveal,
  html.js-motion [data-stagger] > * { opacity: 1; transform: none; }
  .band-progress { transition: none; }
  .rail { transition: none; }
}