/* ============================================================
   博业体育 · 共享样式表 /assets/site.css
   夜场转播室 × 红土高原 · 竞技档案系统
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::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, li, figure, blockquote, dl, dd {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 变量 ---------- */
:root {
  --carbon: #0B0F0D;
  --green-900: #0F2A22;
  --green-700: #174A3A;
  --earth: #B4552F;
  --signal: #FF6B2C;
  --cyan: #35F0D0;
  --gold: #D9A441;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.14);
  --ink: #F4F1EA;
  --ink-2: #9BB0A6;
  --slate: #1D2A33;
  --line: rgba(244, 241, 234, 0.14);
  --line-soft: rgba(244, 241, 234, 0.08);
  --maxw: 1240px;
  --header-h: 64px;
  --font-display: "Archivo Narrow", "Roboto Condensed", "Noto Sans SC", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-body: "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 3px;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(1100px 620px at 92% -12%, rgba(53, 240, 208, 0.07), transparent 62%),
    radial-gradient(900px 640px at -8% 10%, rgba(180, 85, 47, 0.14), transparent 64%),
    var(--carbon);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  letter-spacing: 0.01em;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.01em;
}
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 1.9vw, 1.6rem); }
h4 { font-size: 1.05rem; }

p { max-width: 74ch; }

strong { font-weight: 700; color: #FFFFFF; }

code, kbd, samp { font-family: var(--font-mono); font-size: 0.92em; }

:where(a, button, [tabindex], summary):focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

#main-content { scroll-margin-top: calc(var(--header-h) + 18px); }

/* ---------- 4. 布局容器 ---------- */
.container {
  width: min(100% - 2.5rem, var(--maxw));
  margin-inline: auto;
}

.section {
  position: relative;
  padding-block: clamp(3rem, 7vw, 6rem);
}
.section + .section { border-top: 1px solid var(--line-soft); }

.section__head { margin-bottom: clamp(1.6rem, 3vw, 2.6rem); }
.section__title { margin-top: 0.7rem; }
.section__note { margin-top: 0.8rem; color: var(--ink-2); font-size: 15.5px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--signal);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  flex: none;
}

.lead { font-size: clamp(1.02rem, 1.5vw, 1.2rem); line-height: 1.9; color: #DEDAD1; max-width: 64ch; }
.muted { color: var(--ink-2); }
.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }
.rule { height: 1px; background: var(--line); border: 0; }
.stack > * + * { margin-top: var(--stack-gap, 1rem); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }

/* ---------- 5. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 200;
  padding: 0.65rem 1rem;
  background: var(--signal);
  color: #140803;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  border-radius: var(--radius);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 0.6rem; }

/* ---------- 6. 页头 · 紧凑命令栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
}

.cmdbar {
  position: relative;
  background: rgba(11, 15, 13, 0.74);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--line);
}

.cmdbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2.4vw, 2rem);
  width: min(100% - 2rem, 1440px);
  margin-inline: auto;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  flex: none;
}

.brand__mark {
  width: 26px;
  height: 26px;
  flex: none;
  background: linear-gradient(135deg, var(--signal), var(--earth));
  clip-path: polygon(0 0, 100% 0, 100% 66%, 66% 100%, 0 100%);
}

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

.brand__name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.brand__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  white-space: nowrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 240, 208, 0.16);
  animation: status-pulse 2.6s ease-in-out infinite;
}
@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.nav { flex: 1 1 auto; min-width: 0; }

.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.1rem;
  counter-reset: navidx;
}

.nav__list > li { counter-increment: navidx; }

.nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.5rem 0.7rem;
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  border-bottom: 2px solid transparent;
  border-radius: 2px 2px 0 0;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.nav__link::before {
  content: counter(navidx, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: rgba(155, 176, 166, 0.62);
}
.nav__link:hover {
  color: var(--ink);
  background: var(--glass);
  border-bottom-color: var(--line);
}
.nav__link[aria-current="page"] {
  color: var(--ink);
  background: var(--glass);
  border-bottom-color: var(--signal);
}
.nav__link[aria-current="page"]::before { color: var(--signal); }

.cmdbar__tools {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: none;
}
.cmdbar__tag { white-space: nowrap; }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background 0.2s ease;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.24s ease;
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* 滚动进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--earth), var(--signal) 55%, var(--cyan));
}

/* 站内索引面板 */
.index-panel {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  background: #0A1A15;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 28px 46px rgba(0, 0, 0, 0.55);
}
.index-panel__inner { padding-block: 1.4rem 1.8rem; }
.index-panel__head { color: var(--cyan); }
.index-panel__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.5rem;
  margin-top: 1.1rem;
}
.index-panel__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.7rem 0.85rem;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.index-panel__item:hover {
  background: rgba(255, 107, 44, 0.1);
  border-left-color: var(--signal);
}
.index-panel__label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
}
.index-panel__route {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-2);
}

/* ---------- 7. 按钮与标签 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.6rem 1.05rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.05em;
  line-height: 1.2;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn--signal { background: var(--signal); color: #140803; }
.btn--signal:hover { background: #FF8547; }
.btn--ghost {
  background: var(--glass);
  border-color: var(--line);
  color: var(--ink);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn--outline {
  background: transparent;
  border-color: rgba(255, 107, 44, 0.6);
  color: var(--signal);
}
.btn--outline:hover { background: rgba(255, 107, 44, 0.14); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.26rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}
.tag--cyan { color: var(--cyan); border-color: rgba(53, 240, 208, 0.42); background: rgba(53, 240, 208, 0.1); }
.tag--gold { color: var(--gold); border-color: rgba(217, 164, 65, 0.42); background: rgba(217, 164, 65, 0.1); }
.tag--orange { color: var(--signal); border-color: rgba(255, 107, 44, 0.45); background: rgba(255, 107, 44, 0.1); }
.tag--earth { color: #E8A183; border-color: rgba(180, 85, 47, 0.55); background: rgba(180, 85, 47, 0.16); }

/* ---------- 8. 面包屑 ---------- */
.breadcrumb { padding-top: 1.2rem; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 0.5rem; }
.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(155, 176, 166, 0.5);
}
.breadcrumb__link { color: var(--ink-2); }
.breadcrumb__link:hover { color: var(--cyan); }
.breadcrumb__item[aria-current="page"] { color: var(--ink); }

/* ---------- 9. 面板 · 卡片 · 网格 ---------- */
.panel {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.1rem, 2.2vw, 1.8rem);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.panel--solid {
  background: var(--green-900);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.card {
  position: relative;
  background: var(--green-900);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: clamp(1.05rem, 2vw, 1.6rem);
  transition: background 0.24s ease, border-color 0.24s ease, transform 0.24s ease;
}
.card:hover { background: var(--green-700); border-color: var(--line); transform: translateY(-2px); }
.card--signal { border-left: 3px solid var(--signal); }
.card--earth { border-left: 3px solid var(--earth); }
.card__title { font-family: var(--font-display); font-weight: 800; font-size: 19px; line-height: 1.3; }
.card__meta {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.card__body { margin-top: 0.75rem; color: #DEDAD1; font-size: 15.5px; }

.grid { display: grid; gap: clamp(1rem, 2.2vw, 1.9rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr); }
.grid--sidebar { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }

/* ---------- 10. 数据组件 ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}
.stat {
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border-left: 2px solid var(--line);
}
.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1.1;
  color: var(--ink);
}
.stat__value--cyan { color: var(--cyan); }
.stat__value--signal { color: var(--signal); }
.stat__label {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  text-transform: uppercase;
}

.data-list { border-top: 1px solid var(--line); }
.data-list__row {
  display: grid;
  grid-template-columns: minmax(90px, 0.9fr) minmax(0, 2fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 0.7rem 0.4rem;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.2s ease;
}
.data-list__row:hover { background: rgba(255, 255, 255, 0.035); }
.data-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
}
.data-list__val { font-size: 15px; color: var(--ink); }
.data-list__val--signal { color: var(--signal); font-weight: 700; }
.data-list__val--cyan { color: var(--cyan); font-family: var(--font-mono); font-size: 13.5px; }

/* ---------- 11. 标签页与筛选 ---------- */
.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}
.tabs__btn {
  padding: 0.5rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-2);
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.tabs__btn:hover { color: var(--ink); background: var(--glass); }
.tabs__btn[aria-selected="true"] {
  color: var(--cyan);
  background: rgba(53, 240, 208, 0.12);
  border-color: rgba(53, 240, 208, 0.45);
}
.tabs__panels { padding-top: 1.4rem; }
.tabs__panel[hidden] { display: none; }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}
.chip-row { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chip {
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.chip:hover { color: var(--ink); border-color: var(--signal); }
.chip[aria-pressed="true"] {
  color: var(--cyan);
  background: rgba(53, 240, 208, 0.14);
  border-color: var(--cyan);
}
.filter-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}
[data-filter-item][hidden] { display: none; }

/* ---------- 12. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--green-900) 0%, var(--slate) 100%);
}
.media::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(115deg, rgba(53, 240, 208, 0.12) 0 1px, transparent 1px 72px),
    linear-gradient(0deg, rgba(244, 241, 234, 0.06) 0 1px, transparent 1px 72px);
  pointer-events: none;
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(11, 15, 13, 0) 42%, rgba(11, 15, 13, 0.82) 100%);
  pointer-events: none;
}
.media__img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media__caption {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
}
.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }
.media--band { aspect-ratio: 21 / 9; }
.media--slant { clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%); }

/* ---------- 13. 显现与返回顶部 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible { opacity: 1; transform: none; }

.to-top {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 0.9rem;
  background: rgba(15, 42, 34, 0.88);
  border: 1px solid rgba(53, 240, 208, 0.42);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }

/* ---------- 14. 页脚 ---------- */
.site-footer {
  margin-top: clamp(3rem, 8vw, 6rem);
  background: linear-gradient(180deg, var(--green-900) 0%, #081410 62%, #060D0B 100%);
  border-top: 1px solid var(--line);
}

.site-footer__inner { padding-top: clamp(2.4rem, 6vw, 4.2rem); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 0.85fr 0.85fr 0.85fr 1.7fr;
  gap: clamp(1.6rem, 3.4vw, 3rem);
  padding-bottom: clamp(2rem, 5vw, 3.4rem);
}

.brand--footer { align-items: center; }
.brand--footer .brand__name { font-size: 20px; }

.footer__tagline {
  margin: 0.9rem 0 1rem;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.footer__col-title {
  margin-bottom: 0.95rem;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
}

.footer__links li + li { margin-top: 0.55rem; }

.footer__link {
  display: inline-block;
  font-size: 15px;
  color: var(--ink-2);
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer__link:hover { color: var(--ink); border-bottom-color: var(--signal); }

.contact-list { display: grid; gap: 0.85rem; }

.contact-item { display: grid; gap: 0.15rem; }

.contact-item__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  text-transform: uppercase;
}

.contact-item__value {
  font-size: 15px;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.contact-item__note {
  display: block;
  max-width: 46ch;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.2rem 2rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ink-2);
}

.footer__legal { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.footer__legal .footer__link { font-size: 12px; font-family: var(--font-mono); }

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1180px) {
  .cmdbar__tag { display: none; }
  .nav__link { padding-inline: 0.55rem; font-size: 14px; }
}

@media (max-width: 1024px) {
  .grid--sidebar { grid-template-columns: minmax(0, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .footer__brand { grid-column: 1 / -1; }
  .footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 5;
    padding: 0.5rem 1rem 1rem;
    background: #0A1A15;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 26px 44px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.24s ease, transform 0.24s ease, visibility 0.24s ease;
  }
  .nav[data-open] { opacity: 1; visibility: visible; transform: none; }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
  }
  .nav__link {
    justify-content: flex-start;
    width: 100%;
    padding: 0.8rem 0.7rem;
    border-bottom: 1px solid var(--line-soft);
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 16px;
  }
  .nav__link[aria-current="page"] { border-bottom-color: var(--line-soft); border-left-color: var(--signal); }

  .index-panel__grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

@media (max-width: 860px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--split { grid-template-columns: minmax(0, 1fr); }
  .data-list__row { grid-template-columns: minmax(0, 1fr) auto; }
  .data-list__key { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 16.5px; line-height: 1.8; }
  .cmdbar__cta { display: none; }
  .container { width: min(100% - 2rem, var(--maxw)); }
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer__base { flex-direction: column; align-items: flex-start; }
  .filter-count { margin-left: 0; }
}

@media (max-width: 520px) {
  .brand__status { display: none; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .index-panel__grid { grid-template-columns: minmax(0, 1fr); }
  .btn { padding: 0.55rem 0.85rem; font-size: 14px; }
}

/* ---------- 16. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}