/* ==========================================================================
   百老汇牛牛 · 全站共享样式 /assets/site.css
   夜场紫红 / 霓虹青 / 香槟金 · 粗野主义刊头
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}

body {
  margin: 0;
  background: #F4EFE6;
  color: #14100F;
  font-family: "Inter", "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; }
img, svg, video, canvas { max-width: 100%; display: block; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* --------------------------------------------------------------------------
   2. 变量
   -------------------------------------------------------------------------- */
:root {
  --wine: #4A0E33;
  --wine-deep: #2B0A1E;
  --cyan: #22E0D6;
  --gold: #E8C77B;
  --magenta: #FF2D7A;
  --stone: #4B4A47;
  --stone-light: #8C8A84;
  --paper: #F4EFE6;
  --card: #FBF8F2;
  --moss: #6E7F52;
  --clay: #C4643C;
  --ink: #14100F;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "Sarasa Mono SC", "Noto Sans Mono", "SFMono-Regular", Consolas, "Courier New", monospace;

  --wrap: 1180px;
  --gutter: 24px;
  --bw: 3px;
  --shadow: 6px 6px 0 var(--stone);
  --shadow-ink: 6px 6px 0 var(--ink);
  --sticky-offset: 118px;
  --ease: cubic-bezier(.2, .7, .3, 1);
}

/* --------------------------------------------------------------------------
   3. 基础排版工具
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
}

.t-display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 7vw, 96px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0;
}

.t-section {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -.01em;
  margin: 0;
}

.t-lead {
  font-size: clamp(17px, 1.5vw, 20px);
  line-height: 1.7;
  color: var(--stone);
  max-width: 46ch;
  margin: 0;
}

.section { padding-block: clamp(40px, 6vw, 80px); }
.section--tight { padding-block: clamp(24px, 3vw, 40px); }

/* --------------------------------------------------------------------------
   4. 焦点与可访问性
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--magenta);
  outline-offset: 3px;
}

.site-header :focus-visible,
.site-footer :focus-visible {
  outline-color: var(--cyan);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 300;
  display: inline-block;
  padding: 12px 20px;
  background: var(--gold);
  color: var(--ink);
  border: 3px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  box-shadow: 6px 6px 0 var(--ink);
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* --------------------------------------------------------------------------
   5. 刊头
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--wine);
  color: var(--paper);
  border-bottom: 6px solid var(--wine-deep);
  box-shadow: 0 6px 0 rgba(20, 16, 15, .22);
  transition: box-shadow .2s var(--ease);
}

.site-header.is-compact {
  box-shadow: 0 4px 0 rgba(20, 16, 15, .38);
}

.site-header__strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 7px var(--gutter);
  background: var(--wine-deep);
  color: var(--gold);
  border-bottom: 1px solid rgba(232, 199, 123, .28);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  max-height: 46px;
  overflow: hidden;
  transition: max-height .24s var(--ease), padding .24s var(--ease), opacity .18s var(--ease);
}

.site-header.is-compact .site-header__strip {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.site-header__strip b {
  color: var(--cyan);
  font-weight: 600;
}

.site-header__sep {
  color: var(--stone-light);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
}

.site-header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 20px var(--gutter) 14px;
  border-bottom: 3px solid rgba(232, 199, 123, .42);
  transition: padding .22s var(--ease);
}

.site-header.is-compact .site-header__inner {
  padding-top: 10px;
  padding-bottom: 8px;
}

/* 品牌字标 */
.brand {
  grid-column: 2;
  margin: 0;
  text-align: center;
}

.brand__link {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 4.6vw, 52px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--paper);
  text-shadow:
    3px 3px 0 var(--wine-deep),
    0 0 20px rgba(34, 224, 214, .45);
  transition: font-size .22s var(--ease), text-shadow .18s var(--ease);
}

.brand__link:hover .brand__name,
.brand__link:focus-visible .brand__name {
  text-shadow:
    3px 3px 0 var(--wine-deep),
    0 0 26px rgba(255, 45, 122, .6);
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .3em;
  text-indent: .3em;
  color: var(--gold);
}

.site-header.is-compact .brand__name { font-size: clamp(20px, 2.6vw, 30px); }

/* 栏目索引条 */
.site-nav {
  background: var(--wine);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 0;
  list-style: none;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-nav__item { flex: 0 0 auto; }

.site-nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 18px 13px;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.2;
  border-bottom: 4px solid transparent;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.site-nav__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--gold);
  transition: color .18s var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  background: var(--wine-deep);
  color: var(--gold);
  border-bottom-color: var(--cyan);
}

.site-nav__link[aria-current="page"] {
  background: var(--cyan);
  color: var(--ink);
  border-bottom-color: var(--gold);
}

.site-nav__link[aria-current="page"] .site-nav__num { color: var(--wine); }

/* 滚动进度条 */
.scroll-meter {
  display: block;
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 6px;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(34, 224, 214, .7);
  transition: width .1s linear;
  pointer-events: none;
}

/* 移动导航按钮 */
.nav-toggle {
  grid-column: 1;
  justify-self: start;
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  background: transparent;
  color: var(--paper);
  border: 3px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  transition: background-color .18s var(--ease), color .18s var(--ease);
}

.nav-toggle:hover { background: var(--gold); color: var(--wine); }

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform .2s var(--ease), top .2s var(--ease), opacity .2s var(--ease);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* 收藏提示按钮 */
.fav-btn {
  grid-column: 3;
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  background: transparent;
  color: var(--paper);
  border: 3px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.fav-btn:hover { background: rgba(232, 199, 123, .16); }

.fav-btn__dot {
  width: 9px;
  height: 9px;
  background: var(--magenta);
  box-shadow: 0 0 8px rgba(255, 45, 122, .8);
  transition: background-color .18s var(--ease), box-shadow .18s var(--ease);
}

.fav-btn[aria-pressed="true"] {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}

.fav-btn[aria-pressed="true"] .fav-btn__dot {
  background: var(--wine);
  box-shadow: none;
}

/* --------------------------------------------------------------------------
   6. 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  background: var(--wine);
  color: var(--paper);
  border-top: 3px solid var(--gold);
}

.site-footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 2fr);
  gap: clamp(28px, 4vw, 64px);
  padding-block: clamp(36px, 5vw, 64px);
}

.site-footer__logo {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
  text-shadow: 3px 3px 0 var(--wine-deep);
}

.site-footer__tag {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
}

.site-footer__note {
  margin-top: 16px;
  max-width: 32ch;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(244, 239, 230, .84);
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.site-footer__col { min-width: 0; }

.site-footer__title {
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(232, 199, 123, .38);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--gold);
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
  list-style: none;
}

.site-footer__item { min-width: 0; }

.site-footer__link {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding-bottom: 2px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.site-footer__link:hover,
.site-footer__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.site-footer__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold);
  transition: color .18s var(--ease);
}

.site-footer__link:hover .site-footer__num,
.site-footer__link:focus-visible .site-footer__num { color: var(--cyan); }

.site-footer__plain {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: rgba(244, 239, 230, .92);
  word-break: break-all;
}

.copy-btn {
  flex: none;
  padding: 2px 9px;
  background: transparent;
  color: var(--gold);
  border: 2px solid rgba(232, 199, 123, .58);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.copy-btn:hover {
  background: var(--gold);
  color: var(--wine);
  border-color: var(--gold);
}

.copy-btn.is-copied {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--cyan);
}

.site-footer__legal {
  background: var(--wine-deep);
  border-top: 1px solid rgba(244, 239, 230, .18);
}

.site-footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 24px;
  padding-block: 16px;
}

.site-footer__legal p {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: rgba(244, 239, 230, .78);
}

/* --------------------------------------------------------------------------
   7. 按钮
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--gold);
  color: var(--ink);
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 var(--ink);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  text-align: left;
  transition: transform .14s var(--ease), box-shadow .14s var(--ease), background-color .18s var(--ease), color .18s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--stone);
  box-shadow: 5px 5px 0 var(--stone);
}

.btn--ghost:hover,
.btn--ghost:focus-visible { box-shadow: 2px 2px 0 var(--stone); }

.btn--neon {
  background: var(--cyan);
  color: var(--ink);
  border-color: var(--ink);
}

.btn--onDark {
  background: transparent;
  color: var(--paper);
  border-color: var(--gold);
  box-shadow: 5px 5px 0 var(--wine-deep);
}

.btn--onDark:hover,
.btn--onDark:focus-visible {
  background: var(--gold);
  color: var(--wine);
  box-shadow: 2px 2px 0 var(--wine-deep);
}

/* --------------------------------------------------------------------------
   8. 面包屑
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--stone-light);
}

.breadcrumb a {
  color: var(--stone);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--wine);
  border-bottom-color: var(--wine);
}

.breadcrumb__sep {
  color: var(--stone-light);
  font-size: 12px;
}

.breadcrumb [aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   9. 章节头
   -------------------------------------------------------------------------- */
.sec-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: clamp(20px, 2.6vw, 32px);
}

.sec-head__num {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--stone);
}

.sec-head__num::after {
  content: "";
  flex: 1 1 auto;
  height: 3px;
  background: var(--stone);
  opacity: .28;
}

.sec-head__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.2;
  letter-spacing: -.01em;
  margin: 0;
}

.sec-head__desc {
  max-width: 62ch;
  color: var(--stone);
  font-size: 17px;
  line-height: 1.75;
}

.sec-head--dark .sec-head__num { color: var(--gold); }
.sec-head--dark .sec-head__num::after { background: var(--gold); opacity: .5; }
.sec-head--dark .sec-head__title { color: var(--paper); }
.sec-head--dark .sec-head__desc { color: rgba(244, 239, 230, .82); }

/* --------------------------------------------------------------------------
   10. 卡片
   -------------------------------------------------------------------------- */
.card {
  background: var(--card);
  border: var(--bw) solid var(--stone);
  box-shadow: var(--shadow);
  padding: clamp(18px, 2vw, 26px);
  transition: transform .16s var(--ease), box-shadow .16s var(--ease), border-color .16s var(--ease);
}

.card--dark {
  background: var(--wine-deep);
  color: var(--paper);
  border-color: var(--wine-deep);
  box-shadow: 6px 6px 0 var(--wine);
}

.card--flat { box-shadow: none; }

.card--offset { margin-top: calc(-1 * clamp(0px, 2vw, 24px)); }

.card__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--wine);
}

.card--dark .card__num { color: var(--gold); }

.card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.3;
  margin-bottom: 8px;
}

.card__text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--stone);
}

.card--dark .card__text { color: rgba(244, 239, 230, .84); }

@media (hover: hover) {
  .card:hover {
    transform: translate(2px, 2px);
    box-shadow: 3px 3px 0 var(--stone);
    border-color: var(--cyan);
  }
  .card--dark:hover {
    box-shadow: 3px 3px 0 var(--wine);
    border-color: var(--cyan);
  }
  .card--flat:hover { box-shadow: 3px 3px 0 var(--stone); }
}

/* --------------------------------------------------------------------------
   11. 状态标签
   -------------------------------------------------------------------------- */
.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 3px 10px;
  border: 2px solid currentColor;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  line-height: 1.5;
}

.status__dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.status--live { color: var(--moss); }
.status--pending { color: var(--clay); }
.status--dark { color: var(--gold); }

@media (prefers-reduced-motion: no-preference) {
  .status__dot { animation: status-pulse 2.4s ease-in-out infinite; }
}

@keyframes status-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .3; }
}

/* --------------------------------------------------------------------------
   12. 网格
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: clamp(18px, 2vw, 26px);
}

.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-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(18px, 2vw, 26px);
}

.grid-12 > * { min-width: 0; }

/* --------------------------------------------------------------------------
   13. 图片容器
   -------------------------------------------------------------------------- */
.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--wine-deep);
  border: var(--bw) solid var(--stone);
  box-shadow: var(--shadow);
}

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

.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 3 / 4; }
.media--wide { aspect-ratio: 21 / 9; }
.media--plain { box-shadow: none; }

.media__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--stone-light);
}

/* --------------------------------------------------------------------------
   14. 正文长文
   -------------------------------------------------------------------------- */
.prose {
  max-width: 72ch;
  color: var(--ink);
}

.prose > * + * { margin-top: 1em; }

.prose h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.3;
  margin-top: 1.9em;
}

.prose h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  margin-top: 1.6em;
}

.prose p { margin: 0; }

.prose ul,
.prose ol {
  display: flex;
  flex-direction: column;
  gap: .45em;
  padding-left: 1.4em;
  list-style: disc;
}

.prose ol { list-style: decimal; }

.prose a {
  color: var(--wine);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.prose a:hover,
.prose a:focus-visible { color: var(--ink); }

.prose strong {
  font-weight: 700;
  background: linear-gradient(transparent 60%, rgba(232, 199, 123, .8) 60%);
}

.prose blockquote {
  margin-inline: 0;
  padding: 14px 18px;
  background: var(--card);
  border-left: 6px solid var(--gold);
  color: var(--stone);
}

/* --------------------------------------------------------------------------
   15. 粘性侧栏索引
   -------------------------------------------------------------------------- */
.side-index {
  position: sticky;
  top: var(--sticky-offset);
  align-self: start;
}

.side-index__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  list-style: none;
}

.side-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 8px 12px;
  border-left: 4px solid var(--stone-light);
  font-size: 16px;
  color: var(--stone);
  transition: border-color .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease);
}

.side-index__link:hover,
.side-index__link:focus-visible {
  border-left-color: var(--cyan);
  background: var(--card);
  color: var(--ink);
}

.side-index__link[aria-current="page"] {
  border-left-color: var(--wine);
  background: var(--card);
  color: var(--ink);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   16. 表格基础
   -------------------------------------------------------------------------- */
.data-table {
  width: 100%;
  font-size: 16px;
  border: var(--bw) solid var(--stone);
  background: var(--card);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid rgba(75, 74, 71, .3);
}

.data-table thead th {
  background: var(--wine-deep);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .08em;
  border-bottom-color: var(--wine-deep);
}

.data-table tbody tr:nth-child(even) { background: var(--paper); }

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td { border-bottom: 0; }

@media (hover: hover) {
  .data-table tbody tr:hover { background: rgba(232, 199, 123, .35); }
}

/* --------------------------------------------------------------------------
   17. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  :root { --gutter: 20px; --sticky-offset: 92px; }

  .site-footer__top { grid-template-columns: 1fr; }
  .side-index { position: static; }
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }

  .site-header__inner {
    grid-template-columns: auto 1fr auto;
    gap: 10px;
    padding-top: 14px;
    padding-bottom: 12px;
  }

  .site-header.is-compact .site-header__inner {
    padding-top: 9px;
    padding-bottom: 8px;
  }

  .brand__sub { letter-spacing: .2em; text-indent: .2em; }
  .fav-btn__label { display: none; }
  .fav-btn { padding: 9px 11px; }

  .site-nav {
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .28s var(--ease), visibility .28s var(--ease);
  }

  .site-header[data-open] .site-nav {
    max-height: 620px;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    padding-bottom: 14px;
  }

  .site-nav__item { width: 100%; }

  .site-nav__link {
    width: 100%;
    padding: 13px 12px;
    border-bottom: 1px solid rgba(244, 239, 230, .16);
    border-left: 4px solid transparent;
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible { border-left-color: var(--cyan); }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: var(--cyan);
    border-left-color: var(--gold);
  }
}

@media (max-width: 720px) {
  .site-footer__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .grid-12 { grid-template-columns: 1fr; }
  .card--offset { margin-top: 0; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .site-footer__cols { grid-template-columns: 1fr; }
  .site-header__strip { gap: 8px; font-size: 12px; }
  .site-footer__legal-inner { flex-direction: column; align-items: flex-start; }
  .data-table { font-size: 15px; }
  .data-table th, .data-table td { padding: 10px; }
}

/* --------------------------------------------------------------------------
   18. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .card,
  .btn,
  .site-nav,
  .site-nav__link,
  .site-footer__link,
  .copy-btn,
  .nav-toggle,
  .nav-toggle__bars::before,
  .nav-toggle__bars::after,
  .fav-btn,
  .scroll-meter { transition: none; }

  .card:hover,
  .card--dark:hover,
  .btn:hover,
  .btn--onDark:hover { transform: none; }

  .status__dot { animation: none; }
}