/* ============================================================
   宝威体育主站 · 共享样式 /assets/site.css
   夜场墨蓝 + 荧光青 + 赛道橙 · bento 信息板 · 紧凑命令栏
   ============================================================ */

/* ---------- 1. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--head-h) + 18px);
}
body, h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; }
ul[class], ol[class] { list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* ---------- 2. 设计变量 ---------- */
:root {
  /* 色彩体系 */
  --ink:         #0A1622;
  --ink-2:       #10222F;
  --ink-3:       #0F2E33;
  --paper:       #F3EDE2;
  --cyan:        #33E1D2;
  --cyan-deep:   #16b6ab;
  --orange:      #FF6A2B;
  --silver:      #9BA7B4;
  --silver-dim:  #556472;
  --amber:       #FFC24B;

  /* 线条与阴影 */
  --line:        rgba(155, 167, 180, 0.20);
  --line-strong: rgba(155, 167, 180, 0.38);
  --shadow-soft: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 18px 40px -28px rgba(0, 0, 0, 0.85);
  --shadow-paper: 0 22px 48px -34px rgba(0, 0, 0, 0.8);

  /* 圆角与节奏 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;
  --head-h: 68px;
  --col-gap: 20px;
  --maxw: 1320px;

  /* 字体 */
  --font-head: "Barlow Condensed", "Oswald", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-num:  "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, "Roboto Mono", monospace;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* ---------- 3. 页面基底 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--paper);
  background-color: var(--ink);
  background-image:
    radial-gradient(1180px 640px at 80% -10%, rgba(51, 225, 210, 0.10), transparent 62%),
    radial-gradient(900px 520px at -8% 6%, rgba(255, 106, 43, 0.075), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 刻度线网格纹理 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(155, 167, 180, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 167, 180, 0.05) 1px, transparent 1px);
  background-size: 76px 76px;
  opacity: 0.85;
}

main, .site-header, .site-footer { position: relative; z-index: 1; }

/* ---------- 4. 中文排版 ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.005em;
  color: var(--paper);
}
h1 { font-size: clamp(2.35rem, 5.6vw, 4rem); line-height: 1.02; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.25rem); }
h3 { font-size: clamp(1.22rem, 1.9vw, 1.5rem); }
h4 { font-size: 1.08rem; }
p { text-wrap: pretty; }
strong { font-weight: 700; }
.num, .stat__num, .foot-col__tel, .foot-col__mail, .site-nav__idx, .eyebrow, .tag, .timeline__date, .idx-list__num, .idx-list__meta, .stat__label, .brand__tag, .site-footer__tag, .site-footer__legal, .foot-col__title, .crumb__list {
  font-variant-numeric: tabular-nums;
}
.num { font-family: var(--font-num); letter-spacing: -0.01em; }

/* ---------- 5. 布局骨架 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}
.section { padding-block: clamp(56px, 8.5vw, 112px); }
.section--tight { padding-block: clamp(34px, 5vw, 64px); }

.grid { display: grid; gap: var(--col-gap); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.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)); }

/* ---------- 6. 标题体系 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--cyan);
}
.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px 28px;
  margin-bottom: clamp(24px, 3.6vw, 44px);
}
.section-head__title { font-size: clamp(1.6rem, 3vw, 2.25rem); }
.section-head__desc { max-width: 52ch; font-size: 0.95rem; color: var(--silver); }
.lead { max-width: 62ch; font-size: clamp(1rem, 1.3vw, 1.13rem); color: var(--silver); }
.muted { color: var(--silver); }

/* ---------- 7. 按钮与链接 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.72em 1.3em;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: transform 0.18s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.btn--primary {
  background: var(--orange);
  color: #14100D;
  box-shadow: 0 12px 30px -18px rgba(255, 106, 43, 0.95);
}
.btn--primary:hover { background: #ff8348; transform: translateY(-1px); }
.btn--ghost {
  border-color: rgba(51, 225, 210, 0.5);
  background: rgba(51, 225, 210, 0.07);
  color: var(--cyan);
}
.btn--ghost:hover { background: rgba(51, 225, 210, 0.15); }
.btn--paper { background: var(--paper); color: var(--ink); }
.btn--paper:hover { background: #ffffff; }
.btn--sm { font-size: 0.8rem; padding: 0.58em 1.05em; }
.btn--block { width: 100%; }

.link-cyan {
  color: var(--cyan);
  border-bottom: 1px solid rgba(51, 225, 210, 0.35);
  padding-bottom: 1px;
  transition: border-color 0.2s ease;
}
.link-cyan:hover { border-bottom-color: var(--cyan); }

/* ---------- 8. 焦点与可达性 ---------- */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 0.7em 1.1em;
  border-radius: var(--r-sm);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  transform: translateY(-190%);
  transition: transform 0.2s ease;
}
.skip-link:focus-visible { transform: none; }

/* ---------- 9. 头部 · 紧凑命令栏 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 22, 34, 0.86);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  transition: background-color 0.24s ease, border-color 0.24s ease;
}
.site-header[data-stuck] {
  background: rgba(10, 22, 34, 0.96);
  border-bottom-color: var(--line-strong);
}

.cmdbar__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: var(--head-h);
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 24px;
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}
.brand__mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--cyan), var(--cyan-deep) 62%, #0c7d78);
  color: var(--ink);
  font-family: var(--font-num);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 24px -14px rgba(51, 225, 210, 0.95);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-family: var(--font-head);
  font-size: 1.32rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  color: var(--paper);
}
.brand__tag {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

/* 索引式栏目 */
.site-nav { margin-inline: auto; }
.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 12px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--silver);
  transition: color 0.18s ease, background-color 0.18s ease;
}
.site-nav__idx {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--silver-dim);
  transition: color 0.18s ease;
}
.site-nav__link:hover { color: var(--paper); background: rgba(243, 237, 226, 0.06); }
.site-nav__link[aria-current="page"] {
  color: var(--cyan);
  background: rgba(51, 225, 210, 0.10);
}
.site-nav__link[aria-current="page"] .site-nav__idx { color: var(--cyan); }
.site-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

/* 工具组 */
.cmd-utils {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
}
.cmd-tool {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--silver);
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}
.cmd-tool:hover,
.cmd-tool[aria-expanded="true"] {
  color: var(--paper);
  border-color: var(--line-strong);
  background: rgba(243, 237, 226, 0.05);
}
.cmd-tool__ico {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}
.cmd-tool__ico::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -2px;
  width: 6px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transform: rotate(45deg);
}
.cmd-tool__ico--rotate { width: 13px; height: 10px; border-radius: 3px; }
.cmd-tool__ico--rotate::after {
  right: auto;
  left: 3px;
  bottom: 2px;
  width: 5px;
  height: 1.5px;
  transform: none;
  border-radius: 1px;
}
.cmd-tool--link::before {
  content: "?";
  display: grid;
  place-items: center;
  flex: none;
  width: 15px;
  height: 15px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  font-family: var(--font-num);
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.84rem;
  color: var(--paper);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}
.nav-toggle:hover { background: rgba(243, 237, 226, 0.06); }
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 3px; width: 16px; }
.nav-toggle__bars i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.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); }

/* 工具提示带 */
.cmd-tips {
  border-top: 1px solid var(--line);
  background: rgba(16, 34, 47, 0.94);
}
.cmd-tips__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 14px 24px;
  font-size: 0.9rem;
  color: var(--silver);
}
.cmd-tips__item { display: none; margin: 0; }
.cmd-tips[data-tip-active="search"] .cmd-tips__item[data-tip="search"],
.cmd-tips[data-tip-active="rotate"] .cmd-tips__item[data-tip="rotate"] { display: block; }
.cmd-tips__link {
  margin-left: auto;
  color: var(--cyan);
  border-bottom: 1px solid rgba(51, 225, 210, 0.35);
}

/* 阅读进度灯带 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: rgba(155, 167, 180, 0.14);
}
.scroll-meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--amber) 68%, var(--orange));
}

/* ---------- 10. 页脚 ---------- */
.site-footer {
  margin-top: clamp(48px, 8vw, 96px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 34, 47, 0.72), var(--ink) 72%);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: clamp(26px, 4vw, 52px);
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(42px, 6vw, 76px) 24px clamp(26px, 4vw, 40px);
}
.site-footer__brand { display: flex; flex-direction: column; gap: 10px; max-width: 42ch; }
.foot-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--cyan), #0f8d86);
  color: var(--ink);
  font-family: var(--font-num);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.site-footer__name {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.07em;
}
.site-footer__tag {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}
.site-footer__note { font-size: 0.875rem; color: var(--silver); }

.foot-col { display: flex; flex-direction: column; gap: 14px; }
.foot-col__title {
  font-family: var(--font-num);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver);
}
.foot-col__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.foot-col__list > li { font-size: 0.92rem; color: var(--silver); line-height: 1.65; }
.foot-col__list a {
  color: var(--paper);
  opacity: 0.82;
  transition: opacity 0.18s ease, color 0.18s ease;
}
.foot-col__list a:hover { opacity: 1; color: var(--cyan); }
.foot-col__mail,
.foot-col__tel {
  font-family: var(--font-num);
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}
.foot-col__addr { font-size: 0.9rem; }
.foot-col__note { font-size: 0.82rem; color: var(--silver); }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 18px 24px 36px;
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--silver);
}
.site-footer__meta { margin: 0; }
.site-footer__legal {
  margin: 0;
  font-family: var(--font-num);
  letter-spacing: 0.04em;
}

/* ---------- 11. 面包屑 ---------- */
.crumb { padding-block: 18px; }
.crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
}
.crumb__item { color: var(--silver); }
.crumb__item[aria-current="page"] { color: var(--paper); }
.crumb__link { color: var(--silver); transition: color 0.18s ease; }
.crumb__link:hover { color: var(--cyan); }
.crumb__sep { color: var(--silver-dim); }

/* ---------- 12. 正文容器 ---------- */
.prose {
  max-width: 74ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: rgba(243, 237, 226, 0.9);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2 { margin-top: 2em; }
.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.35em; }
.prose li { margin-top: 0.4em; }
.prose strong { color: var(--paper); }
.prose a { color: var(--cyan); border-bottom: 1px solid rgba(51, 225, 210, 0.4); }
.prose a:hover { border-bottom-color: var(--cyan); }

/* ---------- 13. 通用模块 ---------- */
.panel {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-2);
  box-shadow: var(--shadow-soft);
}
.panel--deep { background: var(--ink-3); }
.panel--paper {
  background: var(--paper);
  border-color: rgba(10, 22, 34, 0.12);
  color: var(--ink);
  box-shadow: var(--shadow-paper);
}
.panel--paper .panel__title,
.panel--paper h2,
.panel--paper h3 { color: var(--ink); }
.panel--paper .panel__desc,
.panel--paper .muted { color: rgba(10, 22, 34, 0.72); }
.panel__title {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--paper);
}
.panel__desc { margin-top: 8px; font-size: 0.93rem; color: var(--silver); }

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.3em 0.72em;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}
.tag--cyan { color: var(--cyan); border-color: rgba(51, 225, 210, 0.45); background: rgba(51, 225, 210, 0.08); }
.tag--orange { color: var(--orange); border-color: rgba(255, 106, 43, 0.5); background: rgba(255, 106, 43, 0.1); }
.tag--amber { color: var(--amber); border-color: rgba(255, 194, 75, 0.5); background: rgba(255, 194, 75, 0.1); }

/* 数据大字 */
.stat { display: flex; flex-direction: column; gap: 5px; }
.stat__num {
  font-family: var(--font-num);
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.stat__num--cyan { color: var(--cyan); }
.stat__num--orange { color: var(--orange); }
.stat__label {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

/* 数据条 / 积分区间刻度 */
.meter {
  position: relative;
  height: 6px;
  border-radius: 999px;
  background: rgba(155, 167, 180, 0.16);
  overflow: hidden;
}
.meter__fill {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: var(--cyan);
  transform: scaleX(var(--v, 1));
  transform-origin: 0 50%;
  transition: transform 0.55s cubic-bezier(0.22, 0.8, 0.28, 1);
}
.meter--orange .meter__fill { background: var(--orange); }
[data-reveal]:not(.is-in) .meter__fill { transform: scaleX(0); }

/* 索引条 */
.idx-list {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: 0;
  padding: 0;
}
.idx-list__item { border-top: 1px solid var(--line); }
.idx-list__item:last-child { border-bottom: 1px solid var(--line); }
.idx-list__link {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 4px;
  color: var(--paper);
  transition: color 0.18s ease, padding-left 0.18s ease, background-color 0.18s ease;
}
.idx-list__link:hover { color: var(--cyan); padding-left: 10px; background: rgba(51, 225, 210, 0.05); }
.idx-list__num {
  min-width: 2.4em;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver-dim);
}
.idx-list__label { font-family: var(--font-head); font-size: 1.1rem; font-weight: 800; }
.idx-list__meta {
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--silver);
}

/* 时间线 */
.timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(51, 225, 210, 0.05));
}
.timeline__item { position: relative; padding-block: 14px; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 22px;
  width: 9px;
  height: 9px;
  border: 1.5px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink);
}
.timeline__date {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.timeline__title {
  margin-top: 5px;
  font-family: var(--font-head);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--paper);
}
.timeline__desc { margin-top: 4px; font-size: 0.94rem; color: var(--silver); }

/* 折叠问答 */
.accordion { display: flex; flex-direction: column; gap: 10px; }
.accordion__item {
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(16, 34, 47, 0.62);
  overflow: hidden;
}
.accordion__btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  text-align: left;
  font-family: var(--font-head);
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--paper);
  transition: color 0.18s ease, background-color 0.18s ease;
}
.accordion__btn:hover { color: var(--cyan); background: rgba(51, 225, 210, 0.05); }
.accordion__ico { position: relative; flex: none; width: 14px; height: 14px; }
.accordion__ico::before,
.accordion__ico::after {
  content: "";
  position: absolute;
  border-radius: 2px;
  background: currentColor;
}
.accordion__ico::before { left: 0; right: 0; top: 6px; height: 2px; }
.accordion__ico::after { top: 0; bottom: 0; left: 6px; width: 2px; transition: transform 0.2s ease; }
.accordion__btn[aria-expanded="true"] .accordion__ico::after { transform: scaleY(0); }
.accordion__panel {
  padding: 0 18px 18px;
  font-size: 0.95rem;
  color: var(--silver);
}

/* 图片容器（响应式，可复用于夜景球场 / 射门 / 数据图表） */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, #16303f, var(--ink) 72%);
}
.media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--3x2 { aspect-ratio: 3 / 2; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media__cap {
  position: absolute;
  inset: auto 0 0 0;
  padding: 14px 16px;
  font-size: 0.85rem;
  color: var(--paper);
  background: linear-gradient(180deg, rgba(10, 22, 34, 0), rgba(10, 22, 34, 0.9));
}

/* ---------- 14. 滚动显现协议 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: 70ms; }
[data-reveal][data-delay="2"] { transition-delay: 140ms; }
[data-reveal][data-delay="3"] { transition-delay: 210ms; }
[data-reveal][data-delay="4"] { transition-delay: 280ms; }

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1180px) {
  .cmd-tool__label { display: none; }
  .btn--sm { font-size: 0.76rem; padding: 0.55em 0.95em; }
}

@media (max-width: 960px) {
  :root { --head-h: 62px; }
  .cmdbar__inner { gap: 12px; padding-inline: 18px; }
  .brand__tag { display: none; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: fixed;
    inset: var(--head-h) 0 auto 0;
    margin: 0;
    max-height: calc(100dvh - var(--head-h));
    overflow-y: auto;
    padding: 16px 18px 26px;
    background: linear-gradient(180deg, var(--ink-2), var(--ink) 88%);
    border-bottom: 1px solid var(--line-strong);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity 0.22s ease, transform 0.22s ease, visibility 0.22s;
  }
  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
  .site-nav__list { flex-direction: column; align-items: stretch; gap: 4px; }
  .site-nav__link {
    padding: 14px 12px;
    font-size: 1rem;
    border-bottom: 1px solid var(--line);
    border-radius: 10px;
  }
  .site-nav__link[aria-current="page"]::after { display: none; }
  .site-nav__link[aria-current="page"] { border-left: 3px solid var(--cyan); }

  .cmd-tips__inner { padding-inline: 18px; }
  .cmd-tips__link { margin-left: 0; }

  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__inner { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .container { padding-inline: 18px; }
  .cmd-tool[data-tip-btn] { display: none; }
  .cmd-tips { display: none; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
  .site-footer__bottom { padding-inline: 18px; }
}

@media (max-width: 560px) {
  .brand__name { font-size: 1.14rem; }
  .nav-toggle__text { display: none; }
  .site-footer__inner { grid-template-columns: minmax(0, 1fr); }
  .btn--sm { font-size: 0.72rem; padding: 0.5em 0.85em; }
}

/* ---------- 16. 降低动效 ---------- */
@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; transition: none; }
  [data-reveal]:not(.is-in) .meter__fill { transform: scaleX(var(--v, 1)); }
  .site-nav { transition: none; }
}