/* ============================================================
   完美体育WM · 夜赛数据指挥舱 · 共享样式表 /assets/site.css
   1 变量与重置 / 2 排版 / 3 布局 / 4 侧边轨道页头 / 5 页脚
   6 按钮 / 7 面包屑 / 8 共享组件 / 9 响应式 / 10 无障碍
   ============================================================ */

/* ---------- 1. 变量与重置 ---------- */
:root {
  --ink: #0B2B24;
  --ink-deep: #08211C;
  --char: #111514;
  --lime: #C6FF3D;
  --home: #FF7A2F;
  --away: #3FA9F5;
  --neutral: #B7BEC2;
  --paper: #F2F5F1;
  --line: #2B3532;
  --teal: #1E4A3F;
  --amber: #FFC24B;

  --rail-w: 272px;
  --bar-h: 64px;
  --gutter: clamp(20px, 4vw, 56px);
  --shadow-hard: 10px 10px 0 rgba(0, 0, 0, .45);
  --t-fast: 180ms cubic-bezier(.2, .7, .3, 1);
  --t-slide: 240ms cubic-bezier(.2, .7, .3, 1);

  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
}

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

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

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

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

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

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

a { color: inherit; }

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(43, 53, 50, .40) 1px, transparent 1px),
    linear-gradient(90deg, rgba(43, 53, 50, .26) 1px, transparent 1px),
    radial-gradient(115% 78% at 82% -12%, rgba(30, 74, 63, .78), transparent 62%);
  background-size: 100% 88px, 88px 100%, 100% 100%;
  background-attachment: fixed;
  overflow-x: hidden;
}

#main-content { display: block; scroll-margin-top: 84px; }

/* ---------- 2. 排版 ---------- */
.display {
  font-weight: 200;
  font-size: clamp(2.5rem, 6.4vw, 6rem);
  line-height: 1.02;
  letter-spacing: -.012em;
  color: var(--paper);
}

.display--sm { font-size: clamp(1.8rem, 3.6vw, 3.25rem); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--amber);
}

.index-num,
.section__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .28em;
  color: var(--lime);
}

.num,
.stat__num,
.datatable td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.lede {
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.8;
  color: rgba(242, 245, 241, .82);
  max-width: 60ch;
}

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: rgba(242, 245, 241, .84);
}

.prose p + p { margin-top: 1.1em; }
.prose h2 { font-size: 1.3rem; font-weight: 500; margin: 1.6em 0 .6em; }
.prose h3 { font-size: 1.08rem; font-weight: 600; margin: 1.4em 0 .5em; color: var(--paper); }
.prose strong { color: var(--lime); font-weight: 600; }

/* ---------- 3. 布局 ---------- */
.shell {
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: clamp(44px, 6vw, 96px) 0; }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 20px;
  margin-bottom: clamp(20px, 3vw, 40px);
}

.section__title {
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  font-weight: 300;
  letter-spacing: .015em;
  line-height: 1.2;
}

.slash {
  position: relative;
  height: 3px;
  margin: clamp(24px, 4vw, 48px) 0;
  background: var(--line);
  transform: skewY(-.5deg);
}

.slash::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: clamp(72px, 18%, 180px);
  background: var(--lime);
}

.stack > * + * { margin-top: clamp(12px, 1.6vw, 20px); }

.grid { display: grid; gap: clamp(16px, 2.2vw, 28px); }

.grid--bento { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.grid--bento > .span-2 { grid-column: span 2; }
.grid--bento > .span-3 { grid-column: span 3; }
.grid--bento > .span-4 { grid-column: span 4; }
.grid--bento > .span-6 { grid-column: span 6; }

/* ---------- 4. 侧边轨道页头 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--char);
  background: var(--lime);
  border: 1px solid var(--lime);
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--t-fast);
}

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

.site-rail {
  --progress: 0%;
  position: sticky;
  top: 0;
  z-index: 90;
  color: var(--paper);
  background: var(--char);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-sans);
}

.rail__masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--bar-h);
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--line);
}

.rail__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 4px;
  text-decoration: none;
  color: var(--paper);
  border: 1px solid transparent;
  transition: border-color var(--t-fast), color var(--t-fast);
}

.rail__brand:hover { border-color: var(--line); }
.rail__brand:hover .rail__brand-line { color: var(--lime); }

.rail__brand-mark {
  flex: none;
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .14em;
  color: var(--char);
  background: var(--lime);
}

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

.rail__brand-line {
  display: block;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .08em;
  transition: color var(--t-fast);
}

.rail__brand-tag {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--neutral);
}

.rail__toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  cursor: pointer;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: border-color var(--t-fast), color var(--t-fast);
}

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

.rail__toggle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.rail__toggle-bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform var(--t-fast), opacity var(--t-fast);
}

.site-rail[data-open="true"] .rail__toggle-bars i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-rail[data-open="true"] .rail__toggle-bars i:nth-child(2) { opacity: 0; }
.site-rail[data-open="true"] .rail__toggle-bars i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.rail__nav {
  position: fixed;
  top: var(--bar-h);
  left: 0;
  bottom: 0;
  z-index: 85;
  width: min(86vw, 340px);
  display: flex;
  flex-direction: column;
  padding: 24px var(--gutter) 32px;
  overflow-y: auto;
  background: var(--char);
  border-right: 1px solid var(--line);
  visibility: hidden;
  transform: translateX(-102%);
  transition: transform var(--t-slide), visibility 0s linear 260ms;
}

.site-rail[data-open="true"] .rail__nav {
  visibility: visible;
  transform: translateX(0);
  transition: transform var(--t-slide), visibility 0s linear 0s;
}

.rail__nav-head {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--neutral);
}

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

.rail__item { position: relative; }

.rail__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 12px 11px 14px;
  color: var(--paper);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.rail__link:hover,
.rail__link:focus-visible {
  background: var(--teal);
  border-left-color: var(--lime);
}

.rail__link[aria-current="page"] {
  color: var(--lime);
  border-left-color: var(--lime);
  background: linear-gradient(90deg, rgba(198, 255, 61, .16), rgba(198, 255, 61, 0) 72%);
}

.rail__idx {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .1em;
  color: var(--neutral);
}

.rail__link[aria-current="page"] .rail__idx { color: var(--lime); }

.rail__label { font-size: 15px; letter-spacing: .04em; }

.rail__foot {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.rail__note {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.6;
  letter-spacing: .06em;
  color: var(--neutral);
}

.rail__scrim {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: block;
  background: rgba(8, 20, 17, .74);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-fast);
}

.site-rail[data-open="true"] .rail__scrim { opacity: 1; pointer-events: auto; }

.rail__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
  background: rgba(43, 53, 50, .9);
}

.rail__progress-bar {
  display: block;
  width: var(--progress);
  height: 100%;
  background: var(--lime);
  transition: width 120ms linear;
}

/* ---------- 5. 页脚 ---------- */
.site-foot {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  color: var(--paper);
  background: var(--char);
  border-top: 1px solid var(--line);
}

.site-foot::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(280px, 58%);
  height: 3px;
  background: var(--lime);
  transform: skewX(-30deg);
  transform-origin: left;
}

.foot__frame {
  max-width: 1320px;
  margin: 0 auto;
  padding: clamp(36px, 5vw, 72px) var(--gutter) clamp(24px, 3vw, 40px);
}

.foot__top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(18px, 3vw, 44px);
  align-items: end;
  padding-bottom: clamp(24px, 3vw, 40px);
  border-bottom: 1px solid var(--line);
}

.foot__intro { min-width: 0; }

.foot__eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--amber);
}

.foot__brand {
  font-size: clamp(1.5rem, 3.4vw, 2.6rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: .02em;
}

.foot__note {
  max-width: 46ch;
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--neutral);
}

.foot__legend {
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(11, 43, 36, .55);
}

.foot__legend-title {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--neutral);
}

.foot__legend-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--paper);
}

.foot__legend-list li { display: flex; align-items: center; gap: 8px; }

.foot__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(0, 1.5fr);
  gap: clamp(22px, 3vw, 44px);
  padding: clamp(28px, 3.5vw, 48px) 0;
}

.foot__col { min-width: 0; }

.foot__head {
  position: relative;
  margin-bottom: 16px;
  padding-left: 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--paper);
}

.foot__head::before {
  content: "";
  position: absolute;
  left: 0;
  top: .42em;
  width: 5px;
  height: 5px;
  background: var(--lime);
}

.foot__links { display: flex; flex-direction: column; gap: 10px; }

.foot__link {
  width: fit-content;
  font-size: 14.5px;
  color: var(--neutral);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.foot__link:hover,
.foot__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

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

.foot__contact-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
}

.foot__k {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--neutral);
}

.foot__v { color: var(--paper); word-break: break-word; }

.foot__legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--neutral);
}

.foot__icp { color: var(--paper); }
.foot__copy { color: var(--neutral); }
.foot__domain { color: var(--line); }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  letter-spacing: .08em;
  text-decoration: none;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line);
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

.btn:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 rgba(198, 255, 61, .3); }
.btn:active { transform: translate(0, 0); box-shadow: none; }

.btn--lime {
  color: var(--char);
  background: var(--lime);
  border-color: var(--lime);
  font-weight: 600;
}

.btn--lime:hover { background: #d8ff73; box-shadow: 4px 4px 0 rgba(0, 0, 0, .55); }

.btn--ghost { color: var(--paper); border-color: var(--line); }
.btn--ghost:hover { color: var(--lime); border-color: var(--lime); }

.btn--block { width: 100%; }

/* ---------- 7. 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neutral);
}

.crumb {
  color: var(--neutral);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

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

.crumb--current { color: var(--paper); border-bottom-color: transparent; }

.crumb-sep { color: var(--line); }

/* ---------- 8. 共享组件 ---------- */
/* 框景首屏 */
.frame {
  position: relative;
  padding: clamp(28px, 4.4vw, 64px);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(30, 74, 63, .58), rgba(8, 33, 28, .9) 55%, rgba(17, 21, 20, .95));
  box-shadow: var(--shadow-hard);
}

.frame::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(183, 190, 194, .22);
  pointer-events: none;
}

.frame__ticks { position: absolute; inset: 0; pointer-events: none; }

.frame__ticks::before,
.frame__ticks::after {
  content: "";
  position: absolute;
  opacity: .45;
}

.frame__ticks::before {
  top: 0;
  left: 26px;
  right: 26px;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--neutral) 0 1px, transparent 1px 26px);
}

.frame__ticks::after {
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 9px;
  background-image: repeating-linear-gradient(180deg, var(--neutral) 0 1px, transparent 1px 26px);
}

.frame__body { position: relative; z-index: 2; }

.frame__label {
  position: absolute;
  top: 18px;
  right: 20px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber);
}

/* 卡片 */
.card {
  position: relative;
  padding: clamp(18px, 2vw, 28px);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(30, 74, 63, .34), rgba(17, 21, 20, .58));
  transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast), background var(--t-fast);
}

.card:hover {
  transform: translate(-3px, -3px);
  border-color: rgba(198, 255, 61, .5);
  box-shadow: 6px 6px 0 rgba(198, 255, 61, .26);
}

.card--focus { border-color: var(--lime); background: linear-gradient(180deg, rgba(30, 74, 63, .6), rgba(17, 21, 20, .7)); }

.card__index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lime);
}

.card__title {
  margin: 8px 0 10px;
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: .01em;
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neutral);
}

.card__text { font-size: 15.5px; line-height: 1.8; color: rgba(242, 245, 241, .82); }

/* 标签 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--paper);
  background: rgba(17, 21, 20, .62);
  border: 1px solid var(--line);
}

.badge--home { color: var(--home); border-color: var(--home); }
.badge--away { color: var(--away); border-color: var(--away); }
.badge--neutral { color: var(--neutral); border-color: var(--neutral); }
.badge--lime { color: var(--char); background: var(--lime); border-color: var(--lime); }
.badge--amber { color: var(--amber); border-color: var(--amber); }

.dot { display: inline-block; width: 7px; height: 7px; background: var(--neutral); }
.dot--lime { background: var(--lime); }
.dot--home { background: var(--home); }
.dot--away { background: var(--away); }
.dot--neutral { background: var(--neutral); }

/* 数据读数 */
.stat-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: clamp(18px, 3vw, 46px);
}

.stat { display: flex; flex-direction: column; gap: 6px; }

.stat__num {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.stat__num--lime { color: var(--lime); }
.stat__num--home { color: var(--home); }
.stat__num--away { color: var(--away); }

.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--neutral);
}

.data-bar {
  position: relative;
  height: 10px;
  overflow: hidden;
  background: rgba(8, 33, 28, .9);
  border: 1px solid var(--line);
}

.data-bar__fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lime);
  transition: width 220ms cubic-bezier(.2, .7, .3, 1);
}

.data-bar__fill--home { background: var(--home); }
.data-bar__fill--away { background: var(--away); }
.data-bar__fill--neutral { background: var(--neutral); }

/* 表格 */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); background: rgba(11, 43, 36, .5); }

.datatable {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.datatable caption {
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neutral);
}

.datatable th,
.datatable td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: middle;
  border-bottom: 1px solid var(--line);
}

.datatable thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--neutral);
  background: rgba(17, 21, 20, .78);
}

.datatable tbody tr { transition: background var(--t-fast); }
.datatable tbody tr:hover { background: var(--teal); }
.datatable td.num { text-align: right; font-weight: 700; }

/* 折叠 */
.fold {
  border: 1px solid var(--line);
  background: rgba(17, 21, 20, .52);
  transition: border-color var(--t-fast);
}

.fold + .fold { margin-top: 10px; }
.fold:hover { border-color: rgba(198, 255, 61, .42); }

.fold summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  cursor: pointer;
  font-size: 15px;
  list-style: none;
}

.fold summary::-webkit-details-marker { display: none; }

.fold summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--lime);
}

.fold[open] summary::after { content: "–"; }

.fold__body {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(242, 245, 241, .8);
}

/* 图片占位容器 */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #0E3129, #08211C 58%, #111514);
  box-shadow: var(--shadow-hard);
}

.media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(183, 190, 194, .13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183, 190, 194, .13) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: .75;
  pointer-events: none;
}

.media__img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media__label {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 2;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--char);
  background: var(--lime);
}

.media__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--neutral);
}

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

/* 入场显现 */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 260ms ease, transform 260ms ease;
}

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

/* ---------- 9. 响应式 ---------- */
@media (min-width: 1080px) {
  body { padding-left: var(--rail-w); }

  .site-rail {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--rail-w);
    display: flex;
    flex-direction: column;
    padding: 26px 22px 24px;
    overflow-y: auto;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .rail__masthead {
    display: block;
    height: auto;
    padding: 0 0 20px;
    border-bottom: 1px solid var(--line);
  }

  .rail__brand {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 4px 0;
  }

  .rail__brand:hover { border-color: transparent; }

  .rail__toggle { display: none; }
  .rail__scrim { display: none; }

  .rail__nav {
    position: static;
    width: auto;
    flex: 1 1 auto;
    min-height: 0;
    margin-top: 22px;
    padding: 0;
    overflow: visible;
    visibility: visible;
    transform: none;
    border-right: 0;
    background: transparent;
    transition: none;
  }

  .rail__progress {
    top: 0;
    bottom: 0;
    left: auto;
    right: 0;
    width: 3px;
    height: auto;
  }

  .rail__progress-bar {
    width: 100%;
    height: var(--progress);
    transition: height 120ms linear;
  }
}

@media (max-width: 1079px) {
  .rail__foot { margin-top: 26px; }
}

@media (max-width: 900px) {
  .grid--bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--bento > * { grid-column: span 2; }
  .foot__top { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .foot__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot__col--contact { grid-column: span 2; }
  .datatable { min-width: 480px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .rail__brand-tag { display: none; }
  .foot__grid { grid-template-columns: minmax(0, 1fr); }
  .foot__col--contact { grid-column: span 1; }
  .foot__legal { flex-direction: column; gap: 8px; }
  .stat-row { gap: 20px; }
}

@media (max-width: 420px) {
  .foot__contact-row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
  .frame { box-shadow: 6px 6px 0 rgba(0, 0, 0, .45); }
}

/* ---------- 10. 无障碍 ---------- */
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0ms !important;
  }

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

  .btn:hover,
  .card:hover {
    transform: none;
  }

  .rail__progress-bar { transition: none; }
}