/* ==========================================================================
   安博体育 · 共享站点套件 /assets/site.css
   深夜蓝底 + 记分牌侧轨 + 粗野主义边框 + 展览标签
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-h) + 20px);
}

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

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

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

button { font: inherit; color: inherit; background: transparent; border: 0; cursor: pointer; }

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

table { border-collapse: collapse; }

/* ---------- 设计变量 ---------- */
:root {
  --night: #071426;
  --plateau: #0E2A47;
  --chalk: #F6F1E7;
  --signal: #FF4D2E;
  --ember: #FF8A3D;
  --lake: #2EC4B6;
  --grass: #7BD389;
  --cream: #E8DCC8;
  --ink: #1A120E;

  --rail-w: 236px;
  --bar-h: 72px;
  --frame: 3px;
  --content-max: 1180px;
  --content-wide: 1360px;
  --pad: clamp(20px, 4.2vw, 56px);

  --font-display: "Oswald", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --dur: .28s;
  --ease: cubic-bezier(.2, .7, .3, 1);
  --hard: 8px 8px 0 rgba(26, 18, 14, .85);
}

/* ---------- 基础排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--chalk);
  background-color: var(--night);
  background-image:
    radial-gradient(900px 520px at 92% -8%, rgba(255, 77, 46, .16), transparent 70%),
    radial-gradient(760px 520px at 4% 4%, rgba(46, 196, 182, .10), transparent 72%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

:focus-visible {
  outline: 3px solid var(--lake);
  outline-offset: 3px;
}

/* ---------- 工具类 ---------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 头部：固定侧轨 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 120;
  padding: 10px 18px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .12em;
  border: var(--frame) solid var(--ink);
  box-shadow: 5px 5px 0 rgba(26, 18, 14, .9);
  transform: translateY(-180%);
  transition: transform var(--dur) var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(246, 241, 231, .10);
  z-index: 90;
}

.progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--signal) 0%, var(--ember) 46%, var(--lake) 100%);
  transition: transform .12s linear;
}

.site-header {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail-w);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 22px 0 26px;
  overflow-y: auto;
  background:
    linear-gradient(180deg, var(--plateau) 0%, #0a1c31 46%, var(--night) 100%);
  border-right: var(--frame) solid var(--ink);
  box-shadow: 10px 0 0 rgba(255, 77, 46, .13);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 220px;
  background: radial-gradient(240px 200px at 20% 0%, rgba(255, 77, 46, .28), transparent 72%);
  pointer-events: none;
}

.site-header::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 3px;
  height: 62%;
  background: linear-gradient(180deg, var(--signal), rgba(255, 77, 46, 0));
  pointer-events: none;
}

.rail {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 6px 20px 0;
}

.brand__plate {
  align-self: flex-start;
  padding: 4px 11px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: .24em;
  line-height: 1.4;
  border: var(--frame) solid var(--ink);
  box-shadow: 4px 4px 0 rgba(26, 18, 14, .9);
  transform: skewX(-8deg);
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 27px;
  line-height: 1;
  letter-spacing: .06em;
  color: var(--chalk);
}

.brand__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: .1em;
  color: var(--lake);
}

.nav-toggle { display: none; }

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bar {
  display: block;
  height: 3px;
  background: var(--signal);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
}

.rail-nav {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 0 0;
}

.rail-nav__title {
  padding: 0 20px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(46, 196, 182, .85);
}

.rail-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail-nav__item { display: block; }

.rail-nav__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 18px 11px 17px;
  border-left: 4px solid transparent;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15.5px;
  letter-spacing: .1em;
  color: rgba(246, 241, 231, .74);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.rail-nav__link:hover {
  color: var(--chalk);
  background: rgba(255, 77, 46, .10);
  border-left-color: var(--ember);
}

.rail-nav__link[aria-current="page"] {
  color: #ffffff;
  background: linear-gradient(90deg, rgba(255, 77, 46, .26), rgba(255, 77, 46, 0));
  border-left-color: var(--signal);
}

.rail-nav__idx {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .06em;
  color: rgba(46, 196, 182, .9);
  font-variant-numeric: tabular-nums;
}

.rail-nav__link[aria-current="page"] .rail-nav__idx { color: var(--signal); }

.rail-nav__text { line-height: 1.3; }

.rail-nav__cta {
  margin: 16px 20px 0;
}

.rail__meta {
  margin-top: auto;
  padding: 20px 20px 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  border-top: 2px dashed rgba(246, 241, 231, .16);
}

.rail__meta-text {
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.7;
  letter-spacing: .08em;
  color: rgba(246, 241, 231, .48);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .12em;
  line-height: 1.2;
  text-align: center;
  border: var(--frame) solid var(--ink);
  border-radius: 0;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease),
              background-color var(--dur) var(--ease), color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.btn--cta {
  background: var(--signal);
  color: var(--ink);
  box-shadow: 6px 6px 0 rgba(26, 18, 14, .85);
}

.btn--cta:hover {
  background: var(--ember);
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 rgba(26, 18, 14, .85);
}

.btn--ghost {
  background: transparent;
  color: var(--chalk);
  border-color: var(--chalk);
}

.btn--ghost:hover {
  color: var(--signal);
  border-color: var(--signal);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(255, 77, 46, .3);
}

.btn--lake {
  background: var(--lake);
  color: var(--ink);
  box-shadow: 6px 6px 0 rgba(26, 18, 14, .85);
}

.btn--lake:hover {
  background: var(--grass);
  transform: translate(-2px, -2px);
}

.btn--sm {
  padding: 9px 15px;
  font-size: 13px;
  letter-spacing: .1em;
}

/* ---------- 标签 ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  line-height: 1.7;
  text-transform: uppercase;
  border: 2px solid currentColor;
  font-variant-numeric: tabular-nums;
}

.chip--live { color: var(--grass); background: rgba(123, 211, 137, .10); }
.chip--data { color: var(--lake); background: rgba(46, 196, 182, .10); }
.chip--alert { color: var(--signal); background: rgba(255, 77, 46, .14); }
.chip--plain { color: var(--cream); background: rgba(232, 220, 200, .08); }

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--lake);
  border: 2px solid rgba(46, 196, 182, .55);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.copy-btn:hover {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(255, 77, 46, .12);
}

.copy-btn[data-copied] {
  color: var(--grass);
  border-color: var(--grass);
  background: rgba(123, 211, 137, .14);
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 100px);
  background: var(--night);
  border-top: var(--frame) solid var(--signal);
  color: var(--chalk);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 200px;
  background:
    radial-gradient(620px 200px at 16% 0, rgba(255, 77, 46, .20), transparent 72%),
    radial-gradient(520px 180px at 78% 0, rgba(46, 196, 182, .12), transparent 74%);
  pointer-events: none;
}

.site-footer__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 56px);
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 78px) var(--pad) clamp(28px, 4vw, 48px);
}

.site-footer__brandcol { display: flex; flex-direction: column; gap: 12px; }

.site-footer__kicker {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.05;
  letter-spacing: .05em;
  color: var(--chalk);
}

.site-footer__kicker::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: 10px;
  vertical-align: baseline;
  background: var(--signal);
  border: 2px solid var(--ink);
  transform: skewX(-10deg);
}

.site-footer__line {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .84);
  max-width: 30ch;
}

.site-footer__note {
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .56);
  max-width: 32ch;
}

.site-footer__stamp { margin-top: 6px; }

.site-footer__heading {
  margin-bottom: 14px;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: rgba(46, 196, 182, .9);
  border-bottom: 2px solid rgba(46, 196, 182, .28);
}

.site-footer__nav { display: block; }

.site-footer__list {
  display: grid;
  gap: 1px;
}

.site-footer__list--plain { margin-bottom: 22px; }

.site-footer__link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .09em;
  color: rgba(246, 241, 231, .82);
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.site-footer__link:hover {
  color: var(--signal);
  border-bottom-color: var(--signal);
  transform: translateX(3px);
}

.site-footer__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .06em;
  color: rgba(46, 196, 182, .9);
  font-variant-numeric: tabular-nums;
}

.site-footer__legalcol { display: block; }

.site-footer__contact {
  display: grid;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(246, 241, 231, .7);
}

.site-footer__contact-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(46, 196, 182, .82);
}

.site-footer__contact-val {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--chalk);
  font-variant-numeric: tabular-nums;
  word-break: break-word;
}

.site-footer__base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 24px;
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding: 16px var(--pad) 34px;
  border-top: 2px solid rgba(246, 241, 231, .12);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(246, 241, 231, .5);
}

/* ---------- 通用布局 ---------- */
.shell {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.shell--wide { max-width: var(--content-wide); }

.section {
  position: relative;
  padding-block: clamp(52px, 7vw, 116px);
  border-top: var(--frame) solid rgba(26, 18, 14, .92);
}

.section::before {
  content: "";
  position: absolute;
  top: calc(var(--frame) * -1);
  left: 0;
  width: clamp(56px, 12vw, 150px);
  height: var(--frame);
  background: var(--signal);
}

.section--tint {
  background:
    linear-gradient(180deg, rgba(14, 42, 71, .9), rgba(7, 20, 38, 0) 78%),
    var(--plateau);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 18px 26px;
  margin-bottom: clamp(24px, 4vw, 50px);
}

.section__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(56px, 9vw, 118px);
  line-height: .78;
  letter-spacing: -.03em;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 77, 46, .65);
  font-variant-numeric: tabular-nums;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.06;
  letter-spacing: .02em;
  max-width: 20ch;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--lake);
}

.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 8.4vw, 118px);
  line-height: .92;
  letter-spacing: -.01em;
  color: var(--chalk);
}

.display--outline {
  color: transparent;
  -webkit-text-stroke: 2px rgba(246, 241, 231, .78);
}

.h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1.04;
  letter-spacing: .01em;
}

.h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.15;
}

.lede {
  font-size: clamp(16.5px, 1.6vw, 20px);
  line-height: 1.8;
  color: rgba(246, 241, 231, .86);
  max-width: 62ch;
}

.prose { font-size: 17px; line-height: 1.85; color: rgba(246, 241, 231, .84); }
.prose p { max-width: 72ch; }
.prose p + p { margin-top: 1.05em; }
.prose strong { color: var(--chalk); font-weight: 700; }
.prose a { color: var(--lake); border-bottom: 2px solid rgba(46, 196, 182, .4); }
.prose a:hover { color: var(--signal); border-bottom-color: var(--signal); }

/* ---------- 栅格 ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--7-5,
.grid--8-4,
.grid--5-7,
.grid--3-6-3 { grid-template-columns: 1fr; }

/* ---------- 卡片与展签 ---------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--plateau);
  border: var(--frame) solid var(--ink);
  box-shadow: var(--hard);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.card:hover {
  border-color: var(--signal);
  transform: translateY(-4px);
  box-shadow: 10px 12px 0 rgba(255, 77, 46, .24);
}

.card--cream {
  background: var(--cream);
  color: var(--ink);
}

.card--cream .card__title,
.card--cream .card__body { color: var(--ink); }
.card--cream .card__meta { color: #5a4132; }

.card__kicker {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--lake);
}

.card--cream .card__kicker { color: #8a3a26; }

.card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.16;
  letter-spacing: .02em;
  color: var(--chalk);
}

.card__body {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 241, 231, .76);
}

.card__meta {
  display: block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: rgba(46, 196, 182, .9);
  font-variant-numeric: tabular-nums;
}

.plate {
  display: inline-block;
  max-width: 100%;
  padding: 10px 14px;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  letter-spacing: .12em;
  border: var(--frame) solid var(--ink);
  box-shadow: 5px 5px 0 rgba(26, 18, 14, .82);
}

.stat { display: flex; flex-direction: column; gap: 2px; }

.stat__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 64px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--signal);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, .6);
}

/* ---------- 数据表 ---------- */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: var(--frame) solid var(--ink);
  box-shadow: var(--hard);
  background: rgba(14, 42, 71, .72);
}

.data-table {
  width: 100%;
  min-width: 560px;
  font-size: 14.5px;
  line-height: 1.6;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 2px solid rgba(26, 18, 14, .78);
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lake);
  background: rgba(7, 20, 38, .78);
  white-space: nowrap;
}

.data-table td { font-variant-numeric: tabular-nums; }
.data-table tbody tr:hover { background: rgba(255, 77, 46, .09); }
.data-table tbody tr:last-child td { border-bottom: 0; }

/* ---------- 图片容器 ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--plateau);
  border: var(--frame) solid var(--ink);
  box-shadow: 10px 10px 0 rgba(26, 18, 14, .8);
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

.media:hover img { transform: scale(1.03); }

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

.media__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(46, 196, 182, .16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 196, 182, .16) 1px, transparent 1px);
  background-size: 44px 44px;
  mix-blend-mode: screen;
}

.media__glow {
  position: absolute;
  right: -12%;
  bottom: -32%;
  width: 62%;
  aspect-ratio: 1 / 1;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 77, 46, .5), transparent 66%);
  filter: blur(6px);
}

.media__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
}

.media__score {
  position: absolute;
  top: 0;
  right: 0;
  padding: 5px 12px;
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 18px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(246, 241, 231, .5);
}

.breadcrumbs a {
  color: var(--lake);
  border-bottom: 1px solid transparent;
}

.breadcrumbs a:hover { border-bottom-color: var(--lake); }

.breadcrumbs__sep { color: rgba(246, 241, 231, .28); }

.breadcrumbs [aria-current="page"] { color: var(--chalk); }

/* ---------- 显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .36s var(--ease), transform .36s var(--ease);
}

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

/* ---------- 桌面：正文让位侧轨 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
  .progress { left: var(--rail-w); }
}

@media (min-width: 900px) {
  .grid--7-5 { grid-template-columns: 7fr 5fr; }
  .grid--8-4 { grid-template-columns: 8fr 4fr; }
  .grid--5-7 { grid-template-columns: 5fr 7fr; }
  .grid--3-6-3 { grid-template-columns: 3fr 6fr 3fr; }
  .site-footer__inner { grid-template-columns: 1.25fr .85fr 1fr; }
}

/* ---------- 移动端：框架式顶栏 + 抽屉导航 ---------- */
@media (max-width: 1023px) {
  body { padding-top: var(--bar-h); }

  .site-header {
    inset: 0 0 auto 0;
    width: 100%;
    min-height: var(--bar-h);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 10px clamp(14px, 4vw, 26px);
    overflow: visible;
    border-right: 0;
    border-bottom: var(--frame) solid var(--ink);
    box-shadow: 0 8px 0 rgba(255, 77, 46, .16);
  }

  .site-header::before { height: 100%; }
  .site-header::after { display: none; }

  .rail {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    width: 100%;
  }

  .brand { padding: 0; gap: 5px; }
  .brand__plate { font-size: 11px; padding: 2px 8px; letter-spacing: .2em; }
  .brand__name { font-size: 19px; }
  .brand__tag { display: none; }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--chalk);
    background: rgba(255, 77, 46, .1);
    border: var(--frame) solid var(--signal);
    box-shadow: 4px 4px 0 rgba(26, 18, 14, .8);
  }

  .nav-toggle:hover { background: rgba(255, 77, 46, .2); }

  .site-header[data-open] .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .site-header[data-open] .nav-toggle__bar:nth-child(2) { opacity: 0; }
  .site-header[data-open] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .rail-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 45;
    max-height: calc(100vh - var(--bar-h));
    overflow-y: auto;
    padding: 16px 0 22px;
    gap: 8px;
    background: linear-gradient(180deg, var(--plateau) 0%, var(--night) 88%);
    border-bottom: var(--frame) solid var(--signal);
    box-shadow: 0 20px 46px rgba(0, 0, 0, .6);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .24s var(--ease), transform .24s var(--ease), visibility .24s linear;
  }

  .site-header[data-open] .rail-nav {
    visibility: visible;
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .rail-nav__title { padding-inline: clamp(14px, 4vw, 26px); }

  .rail-nav__link {
    padding: 14px clamp(14px, 4vw, 26px);
    font-size: 17px;
  }

  .rail-nav__cta {
    margin: 16px clamp(14px, 4vw, 26px) 0;
    align-self: stretch;
  }

  .rail__meta { display: none; }

  .site-footer__base { font-size: 10.5px; }
}

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

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

  .reveal { opacity: 1; transform: none; }
  .media:hover img { transform: none; }
  .card:hover { transform: none; }
}