/* ==========================================================================
   U体育赛场 · u-sports-ledong.com.cn
   /assets/site.css — 全站共享外壳与基础组件
   夜场墨绿底 / 蓝图网格 / 切角面板 / 荧光青与亮橙数据高亮
   ========================================================================== */

/* --- 01 Reset ----------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html, body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, figure, figcaption,
blockquote, dl, dt, dd, table, th, td, header, footer, nav, section, article, aside {
  margin: 0;
  padding: 0;
}

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

/* --- 02 变量 ------------------------------------------------------------ */
:root {
  --ink: #0B1F17;
  --coal: #14181A;
  --umber: #2A1E16;
  --cream: #F1E9D8;
  --cyan: #1FE0C0;
  --orange: #FF6A1A;
  --red: #D8402C;
  --white: #E8F1EE;
  --silver: #9BA7A2;

  --line: rgba(155, 167, 162, 0.26);
  --line-strong: rgba(155, 167, 162, 0.45);
  --line-cyan: rgba(31, 224, 192, 0.42);
  --line-orange: rgba(255, 106, 26, 0.42);
  --line-red: rgba(216, 64, 44, 0.5);

  --cut-sm: 8px;
  --cut: 14px;
  --cut-lg: 28px;

  --band: 88px;
  --band-lg: 132px;

  --gutter: 24px;
  --shell: 1440px;
  --header-h: 64px;

  --font-display: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", "Heiti SC", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);

  --fs-display: clamp(2.5rem, 6.4vw, 6rem);
  --fs-h2: clamp(1.5rem, 2.6vw, 2.25rem);
  --fs-h3: clamp(1.125rem, 1.6vw, 1.4rem);
  --fs-body: 1rem;
  --fs-index: 0.6875rem;
}

@media (max-width: 900px) {
  :root { --gutter: 16px; --header-h: 60px; }
}

/* --- 03 基础与中文排版 --------------------------------------------------- */
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body > * { position: relative; z-index: 1; }

/* 蓝图网格底 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(155, 167, 162, 0.065) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(155, 167, 162, 0.065) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(130% 95% at 50% 0%, #000 18%, transparent 100%);
  mask-image: radial-gradient(130% 95% at 50% 0%, #000 18%, transparent 100%);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--white);
  text-wrap: balance;
}

h1 { font-size: var(--fs-display); line-height: 1.02; }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: 1.3; }

p { line-height: 1.75; }

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover { text-decoration: underline; text-underline-offset: 3px; }

strong, b { font-weight: 700; color: var(--white); }

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: rgba(31, 224, 192, 0.3);
  color: #FFFFFF;
}

/* 跳转链接 */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #04221B;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
}

.skip-link:focus { transform: translateY(0); text-decoration: none; }

/* --- 04 命令栏头部 ------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11, 31, 23, 0.94);
  border-bottom: 1px solid var(--line);
  transition: background-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

@supports ((-webkit-backdrop-filter: blur(12px)) or (backdrop-filter: blur(12px))) {
  .site-header {
    background: rgba(11, 31, 23, 0.76);
    -webkit-backdrop-filter: blur(12px) saturate(1.25);
    backdrop-filter: blur(12px) saturate(1.25);
  }
}

.site-header.is-condensed {
  background: rgba(9, 25, 18, 0.97);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.38);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  width: min(var(--shell), 100% - (var(--gutter) * 2));
  min-height: var(--header-h);
  margin-inline: auto;
}

/* 字标 */
.brand {
  flex: 0 0 auto;
  display: block;
  padding: 11px 0;
  text-decoration: none;
  color: var(--white);
}

.brand:hover { text-decoration: none; }

.brand-mark {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 21px;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--white);
}

.brand-u {
  color: var(--cyan);
  margin-right: 1px;
}

.brand-line {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  line-height: 1.2;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}

.brand-domain { color: var(--silver); }

.brand-sep {
  flex: 0 0 auto;
  width: 4px;
  height: 4px;
  background: var(--orange);
}

.brand-stage {
  letter-spacing: 0.05em;
  color: rgba(232, 241, 238, 0.6);
}

/* 栏目导航 */
.cmd-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.cmd-list {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
}

.cmd-item { flex: 0 0 auto; }

.cmd-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 22px 11px 21px;
  font-size: 14px;
  line-height: 1;
  color: var(--silver);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease);
}

.cmd-link:hover {
  color: var(--white);
  background-color: rgba(31, 224, 192, 0.07);
  text-decoration: none;
}

.cmd-link::after {
  content: "";
  position: absolute;
  left: 9px;
  right: 9px;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.22s var(--ease);
}

.cmd-link[aria-current="page"] { color: var(--white); }
.cmd-link[aria-current="page"]::after { transform: scaleX(1); }

.cmd-idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--silver);
  opacity: 0.72;
  transition: color 0.18s var(--ease), opacity 0.18s var(--ease);
}

.cmd-link:hover .cmd-idx,
.cmd-link[aria-current="page"] .cmd-idx {
  color: var(--cyan);
  opacity: 1;
}

.cmd-label { white-space: nowrap; }

.cmd-note { display: none; }

/* 快速入口 */
.header-actions {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.quick {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  font-size: 12.5px;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  text-decoration: none;
  border: 1px solid var(--line-strong);
  background: rgba(232, 241, 238, 0.03);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease),
              border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.quick:hover { text-decoration: none; transform: translateY(-1px); }

.quick--schedule {
  color: var(--cyan);
  border-color: var(--line-cyan);
}

.quick--schedule:hover { background-color: rgba(31, 224, 192, 0.13); }

.quick--ticket {
  color: #1A0C03;
  font-weight: 700;
  background-color: var(--orange);
  border-color: var(--orange);
}

.quick--ticket:hover { background-color: #FF8340; }

.quick--mail { color: var(--white); }
.quick--mail:hover { background-color: rgba(232, 241, 238, 0.1); }

/* 移动端索引按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  color: var(--white);
  border: 1px solid var(--line-strong);
  background: rgba(232, 241, 238, 0.04);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
}

.nav-toggle-bars {
  display: block;
  width: 16px;
}

.nav-toggle-bars i {
  display: block;
  height: 2px;
  margin: 3px 0;
  background: currentColor;
  transition: transform 0.22s var(--ease), opacity 0.16s linear;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.nav-toggle-txt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver);
}

/* 阅读进度 */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transition: width 0.1s linear;
}

/* --- 05 页脚 ------------------------------------------------------------ */
.site-footer {
  position: relative;
  z-index: 1;
  overflow: hidden;
  background: var(--umber);
  border-top: 1px solid rgba(155, 167, 162, 0.32);
  color: var(--white);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: repeating-linear-gradient(115deg, rgba(255, 106, 26, 0.85) 0 14px, transparent 14px 30px);
  opacity: 0.5;
}

.footer-inner {
  width: min(var(--shell), 100% - (var(--gutter) * 2));
  margin-inline: auto;
  padding: 58px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(210px, 1.35fr) repeat(4, minmax(132px, 0.85fr));
  gap: 36px 34px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(155, 167, 162, 0.2);
}

.footer-brand { max-width: 340px; }

.footer-logo {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 26px;
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--white);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.footer-logo:hover { color: var(--cyan); text-decoration: none; }

.footer-tagline {
  margin-top: 14px;
  max-width: 26ch;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(232, 241, 238, 0.72);
}

.footer-cycle {
  display: inline-flex;
  align-items: center;
  margin-top: 18px;
  padding: 7px 12px;
  border: 1px solid var(--line-cyan);
  color: var(--cyan);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
}

.footer-cycle-val {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1;
}

.footer-col-title {
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(155, 167, 162, 0.22);
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  font-weight: 400;
  letter-spacing: 0.2em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--silver);
}

.footer-list {
  display: grid;
  gap: 9px;
}

.footer-item { line-height: 1.5; }

.footer-link {
  display: inline-block;
  font-size: 14px;
  color: rgba(232, 241, 238, 0.82);
  text-decoration: none;
  transition: color 0.16s var(--ease), transform 0.16s var(--ease);
}

.footer-link:hover {
  color: var(--cyan);
  text-decoration: none;
  transform: translateX(2px);
}

.footer-contact {
  display: grid;
  gap: 12px;
}

.footer-contact-row {
  display: grid;
  gap: 3px;
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--silver);
}

.footer-contact-val {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
  color: rgba(232, 241, 238, 0.9);
  word-break: break-word;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding: 22px 0 34px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver);
}

.footer-legal {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
}

.footer-reg {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: rgba(232, 241, 238, 0.76);
}

.footer-legal-sep { color: rgba(155, 167, 162, 0.5); }

.footer-copy {
  margin-left: auto;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* --- 06 通用组件 -------------------------------------------------------- */
.wrap {
  width: min(var(--shell), 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.wrap--narrow {
  width: min(920px, 100% - (var(--gutter) * 2));
  margin-inline: auto;
}

.section {
  padding: 72px 0;
  border-top: 1px solid var(--line);
}

.section--tight { padding: 48px 0; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 20px;
  margin-bottom: 26px;
}

.module-id {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-index);
  letter-spacing: 0.2em;
  line-height: 1.4;
  text-transform: uppercase;
  color: var(--silver);
}

.module-id::before {
  content: "";
  flex: 0 0 auto;
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

/* 数据带 */
.band {
  display: grid;
  align-items: center;
  min-height: var(--band);
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(20, 24, 26, 0.9), rgba(11, 31, 23, 0.55));
}

.band--tall { min-height: var(--band-lg); }

.band--cream {
  background: var(--cream);
  color: var(--umber);
  border-color: rgba(42, 30, 22, 0.22);
}

/* 切角面板 */
.panel {
  position: relative;
  padding: 24px;
  background: var(--coal);
  border: 1px solid var(--line);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.panel--lead {
  clip-path: polygon(var(--cut-lg) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut-lg));
}

.panel--cream {
  background: var(--cream);
  color: var(--umber);
  border-color: rgba(42, 30, 22, 0.25);
}

.panel--cream h2,
.panel--cream h3,
.panel--cream h4 { color: var(--umber); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white);
  text-decoration: none;
  border: 1px solid transparent;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease),
              border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn--primary {
  background: var(--orange);
  color: #190A02;
  border-color: var(--orange);
}

.btn--primary:hover { background: #FF8340; }

.btn--ghost {
  color: var(--cyan);
  background: rgba(31, 224, 192, 0.05);
  border-color: var(--line-cyan);
}

.btn--ghost:hover { background: rgba(31, 224, 192, 0.14); }

.btn--cream {
  background: var(--cream);
  color: var(--umber);
  border-color: var(--cream);
}

.btn--cream:hover { background: #FFF6E4; }

/* 面包屑 */
.breadcrumb {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1.5;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: rgba(155, 167, 162, 0.5);
}

.breadcrumb-link {
  color: var(--silver);
  text-decoration: none;
}

.breadcrumb-link:hover { color: var(--cyan); text-decoration: none; }

.breadcrumb-item [aria-current="page"] { color: var(--white); }

/* 长文 */
.prose {
  max-width: 72ch;
  font-size: 16.5px;
  line-height: 1.75;
  color: rgba(232, 241, 238, 0.86);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  margin-top: 2em;
  font-size: var(--fs-h2);
  color: var(--white);
}

.prose h3 {
  margin-top: 1.7em;
  font-size: var(--fs-h3);
  color: var(--white);
}

.prose ul,
.prose ol { padding-left: 1.25em; }

.prose li { margin-top: 0.45em; list-style: disc; }
.prose ol li { list-style: decimal; }

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.prose--cream { color: rgba(42, 30, 22, 0.86); }
.prose--cream h2,
.prose--cream h3,
.prose--cream strong { color: var(--umber); }

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.3;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(31, 224, 192, 0.06);
  border: 1px solid var(--line-cyan);
}

.tag--orange {
  color: var(--orange);
  background: rgba(255, 106, 26, 0.07);
  border-color: var(--line-orange);
}

.tag--red {
  color: #FF7A66;
  background: rgba(216, 64, 44, 0.08);
  border-color: var(--line-red);
}

.tag--silver {
  color: var(--silver);
  background: rgba(155, 167, 162, 0.06);
  border-color: var(--line);
}

/* 图片容器基础规则 */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(150deg, #14211C 0%, #0B1F17 46%, #14181A 100%);
  border: 1px solid var(--line);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.media::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(31, 224, 192, 0.075) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 224, 192, 0.075) 1px, transparent 1px);
  background-size: 40px 40px;
}

.media > img,
.media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }

.media--cream {
  background: linear-gradient(150deg, #EFE4CE 0%, #F1E9D8 100%);
  border-color: rgba(42, 30, 22, 0.22);
}

.media--cream::before {
  background-image:
    linear-gradient(to right, rgba(42, 30, 22, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(42, 30, 22, 0.06) 1px, transparent 1px);
}

.media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.1em;
  color: var(--silver);
}

/* 对照表 */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
}

.data-table {
  width: 100%;
  min-width: 640px;
  font-size: 14.5px;
}

.data-table caption {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
  border-bottom: 1px solid var(--line);
}

.data-table th,
.data-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(155, 167, 162, 0.16);
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #101A16;
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.data-table tbody tr:nth-child(even) { background: rgba(232, 241, 238, 0.025); }
.data-table tbody tr:hover { background: rgba(31, 224, 192, 0.06); }

.num,
.data-table th.num,
.data-table td.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.data-table--cream {
  background: var(--cream);
  color: var(--umber);
}

.data-table--cream th,
.data-table--cream td { border-bottom-color: rgba(42, 30, 22, 0.18); }

.data-table--cream thead th {
  background: #E7DCC6;
  color: rgba(42, 30, 22, 0.75);
}

.data-table--cream tbody tr:nth-child(even) { background: rgba(42, 30, 22, 0.04); }

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

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.divider {
  height: 1px;
  background: var(--line);
}

.stack > * + * { margin-top: var(--stack, 16px); }

/* 进视口显现 */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}

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

/* --- 07 响应式 ---------------------------------------------------------- */
@media (max-width: 1320px) {
  .quick--mail { display: none; }
}

@media (max-width: 1180px) {
  .header-inner { gap: 14px; }
  .cmd-link { padding: 22px 8px 21px; font-size: 13.5px; }
  .cmd-nav { overflow-x: auto; scrollbar-width: none; }
  .cmd-nav::-webkit-scrollbar { display: none; }
  .footer-grid { grid-template-columns: minmax(200px, 1.4fr) repeat(2, minmax(150px, 1fr)); }
}

@media (max-width: 1024px) {
  .brand-line { letter-spacing: 0.1em; }
  .footer-grid { gap: 30px 28px; }
}

@media (max-width: 900px) {
  html.nav-open,
  html.nav-open body { overflow: hidden; }

  .site-header { border-bottom-color: var(--line); }

  .header-inner { gap: 12px; }

  .brand { padding: 9px 0; }
  .brand-mark { font-size: 18px; }
  .brand-line { font-size: 10px; letter-spacing: 0.08em; }
  .brand-sep,
  .brand-stage { display: none; }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .header-actions { display: none; }

  .cmd-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 55;
    padding: 4px var(--gutter) 48px;
    overflow-y: auto;
    overflow-x: hidden;
    background: linear-gradient(180deg, #0B1F17 0%, #0F1A1B 55%, #14181A 100%);
    border-top: 1px solid var(--line);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease), visibility 0.22s var(--ease);
  }

  .cmd-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .cmd-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .cmd-item { flex: 1 1 auto; }

  .cmd-link {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    grid-template-rows: auto auto;
    align-items: center;
    column-gap: 10px;
    padding: 15px 4px;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -0.01em;
    white-space: normal;
    border-bottom: 1px solid rgba(155, 167, 162, 0.16);
  }

  .cmd-link::after {
    left: 0;
    right: auto;
    top: 12px;
    bottom: 12px;
    width: 3px;
    height: auto;
    transform: scaleY(0);
    transform-origin: top center;
  }

  .cmd-link[aria-current="page"]::after { transform: scaleY(1); }

  .cmd-idx {
    grid-column: 1;
    grid-row: 1;
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--cyan);
    opacity: 0.85;
  }

  .cmd-label {
    grid-column: 2;
    grid-row: 1;
    white-space: normal;
  }

  .cmd-note {
    display: block;
    grid-column: 2;
    grid-row: 2;
    margin-top: 4px;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.55;
    letter-spacing: 0;
    color: var(--silver);
  }

  .cmd-link[aria-current="page"] .cmd-note { color: rgba(232, 241, 238, 0.76); }

  .footer-inner { padding-top: 44px; }
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .footer-brand { max-width: none; }
  .footer-cycle { margin-top: 16px; }
  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .footer-copy { margin-left: 0; }
}

@media (max-width: 560px) {
  .nav-toggle-txt { display: none; }
  .brand-domain { letter-spacing: 0.06em; }
  .section { padding: 52px 0; }
  .panel { padding: 18px; }
  .data-table { min-width: 520px; }
}

/* --- 08 动效降级 -------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .scroll-progress { transition: none; }
}