/* ==========================================================================
   乐竞体育看台 — 共享样式表 /assets/site.css
   深空蓝近单色体系 · 荧光青主强调 · 信号橙副强调
   堆叠面板 / 双层导航 / 框景刻度 / 等宽索引
   ========================================================================== */

/* --- 1. 变量 ------------------------------------------------------------- */
:root {
  --lj-bg: #050B18;
  --lj-panel: #0A1428;
  --lj-panel-float: #10203C;
  --lj-line: #1B3252;
  --lj-line-soft: rgba(27, 50, 82, 0.62);
  --lj-muted: #7F97B8;
  --lj-fg: #D8E6F2;
  --lj-cyan: #00E5D0;
  --lj-cyan-soft: #A8FFF4;
  --lj-cyan-deep: #0E3A3A;
  --lj-orange: #FF6B2C;
  --lj-orange-deep: #3A1A0E;
  --lj-ink: #04201D;

  --lj-sans: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI",
    Roboto, sans-serif;
  --lj-mono: "SFMono-Regular", "JetBrains Mono", "Cascadia Mono", Menlo,
    Consolas, "Liberation Mono", "Courier New", monospace;

  --lj-shell: 1320px;
  --lj-gap: 24px;
  --lj-radius: 0px;
  --lj-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --lj-dur: 240ms;
}

/* --- 2. Reset ------------------------------------------------------------ */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
  background-color: var(--lj-bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--lj-bg);
  background-image:
    radial-gradient(1100px 560px at 10% -12%, rgba(0, 229, 208, 0.07), transparent 62%),
    radial-gradient(900px 520px at 92% -6%, rgba(255, 107, 44, 0.06), transparent 58%),
    linear-gradient(180deg, #06101f 0%, #050B18 46%, #050B18 100%);
  background-repeat: no-repeat;
  color: var(--lj-fg);
  font-family: var(--lj-sans);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.01em;
}

img, svg, video, canvas { max-width: 100%; height: auto; }
main { display: block; }
ul, ol { margin: 0; padding: 0; }

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

button { font: inherit; color: inherit; }

::selection { background: var(--lj-cyan-soft); color: #04201D; }

:focus-visible {
  outline: 2px solid var(--lj-cyan);
  outline-offset: 2px;
  border-radius: 1px;
}

/* --- 3. 中文排版与标题 --------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  color: var(--lj-fg);
  font-family: var(--lj-sans);
  font-weight: 800;
  font-stretch: 93%;
  letter-spacing: -0.01em;
  line-height: 1.25;
}
h1 { font-size: 40px; }
h2 { font-size: 28px; }
h3 { font-size: 20px; }
h4 { font-size: 16px; }

p { margin: 0 0 1em; }

.lj-section-title { font-size: 28px; font-weight: 800; margin: 0 0 8px; }
.lj-section-title--lead { font-size: 40px; }

/* 等宽索引与数字 */
.lj-index {
  display: inline-block;
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lj-muted);
  margin: 0;
}
.lj-index--accent { color: var(--lj-cyan); }

.lj-num {
  font-family: var(--lj-mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--lj-cyan);
}
.lj-num--accent { color: var(--lj-orange); }

/* --- 4. 布局 ------------------------------------------------------------- */
.lj-shell {
  width: 100%;
  max-width: var(--lj-shell);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.lj-section { padding: 56px 0; }
.lj-section--tight { padding: 32px 0; }

.lj-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--lj-line);
}

.lj-grid { display: grid; gap: var(--lj-gap); grid-template-columns: minmax(0, 1fr); }
.lj-grid--split,
.lj-grid--halves,
.lj-grid--main { grid-template-columns: minmax(0, 1fr); }

.lj-stack { display: grid; gap: var(--lj-gap); }
.lj-stack--offset > *:nth-child(even) { margin-left: clamp(0px, 4vw, 64px); }

@media (min-width: 768px) {
  .lj-grid--split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lj-grid--main {
    grid-template-columns: 190px minmax(0, 1fr) 320px;
    align-items: start;
  }
  .lj-grid--halves { grid-template-columns: 1.35fr 1fr; }
  .lj-grid--split { gap: 32px; }
  .lj-section { padding: 72px 0; }
}

/* --- 5. 面板与装饰 ------------------------------------------------------- */
.lj-panel {
  position: relative;
  background: var(--lj-panel);
  border: 1px solid var(--lj-line);
  padding: 24px;
}
.lj-panel--float { background: var(--lj-panel-float); }
.lj-panel--flush { padding: 0; }

.lj-panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 12px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--lj-line);
}
.lj-panel__title { margin: 0; font-size: 20px; font-weight: 800; }

.lj-frame { position: relative; }
.lj-frame::before,
.lj-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--lj-cyan);
  pointer-events: none;
}
.lj-frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}
.lj-frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.lj-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--lj-line);
  background: var(--lj-panel-float);
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  line-height: 1.7;
  white-space: nowrap;
}
.lj-tag--live {
  background: var(--lj-orange-deep);
  border-color: rgba(255, 107, 44, 0.5);
  color: var(--lj-orange);
}
.lj-tag--data {
  background: var(--lj-cyan-deep);
  border-color: rgba(0, 229, 208, 0.4);
  color: var(--lj-cyan-soft);
}

.lj-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
}
.lj-status__dot {
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lj-orange);
  box-shadow: 0 0 10px rgba(255, 107, 44, 0.85);
  animation: lj-pulse 2s ease-in-out infinite;
}
@keyframes lj-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.32; }
}

/* --- 6. 跳转链接 --------------------------------------------------------- */
.lj-skip {
  position: fixed;
  left: 16px;
  top: -120px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--lj-cyan);
  color: var(--lj-ink);
  font-family: var(--lj-mono);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: top 0.2s var(--lj-ease);
}
.lj-skip:focus,
.lj-skip:focus-visible { top: 12px; color: var(--lj-ink); }

/* --- 7. 页头 ------------------------------------------------------------- */
.lj-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(5, 11, 24, 0.92);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--lj-line);
}

.lj-topbar {
  overflow: hidden;
  max-height: 76px;
  border-bottom: 1px solid var(--lj-line);
  background:
    linear-gradient(90deg, rgba(14, 58, 58, 0.55) 0%, rgba(5, 11, 24, 0) 44%, rgba(58, 26, 14, 0.35) 100%);
  transition: max-height 0.28s var(--lj-ease), opacity 0.28s var(--lj-ease),
    border-color 0.28s var(--lj-ease);
}
.lj-header[data-scrolled="true"] .lj-topbar {
  max-height: 0;
  opacity: 0;
  border-color: transparent;
}

.lj-topbar__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  min-height: 40px;
  padding-top: 8px;
  padding-bottom: 8px;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
}
.lj-topbar__brand {
  color: var(--lj-fg);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.lj-topbar__spacer { flex: 1 1 auto; }

.lj-meta__item { color: var(--lj-muted); white-space: nowrap; }
.lj-meta__item--lang {
  padding: 1px 6px;
  border: 1px solid var(--lj-line);
  color: var(--lj-fg);
  letter-spacing: 0.12em;
}

.lj-util {
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
  transition: color 0.2s var(--lj-ease), border-color 0.2s var(--lj-ease);
}
.lj-util:hover { color: var(--lj-cyan-soft); border-color: var(--lj-cyan-soft); }
.lj-util--accent { color: var(--lj-orange); }
.lj-util--accent:hover { color: #FFB08A; border-color: var(--lj-orange); }

.lj-navbar__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 66px;
  padding-top: 8px;
  padding-bottom: 8px;
}

/* 品牌 */
.lj-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--lj-fg);
  text-decoration: none;
}
.lj-brand:hover { color: var(--lj-cyan-soft); }
.lj-brand__mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border: 1px solid var(--lj-cyan);
  background: rgba(0, 229, 208, 0.08);
  color: var(--lj-cyan);
  font-family: var(--lj-mono);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
}
.lj-brand__text { display: flex; flex-direction: column; gap: 3px; }
.lj-brand__name {
  font-size: 16px;
  font-weight: 800;
  font-stretch: 93%;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.lj-brand__sub {
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.2em;
}

/* 主栏目 */
.lj-nav { margin-left: auto; }
.lj-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.lj-nav__item { display: block; }
.lj-nav__link {
  position: relative;
  display: inline-block;
  padding: 9px 12px;
  border: 1px solid transparent;
  color: var(--lj-muted);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: color 0.2s var(--lj-ease), border-color 0.2s var(--lj-ease),
    background-color 0.2s var(--lj-ease);
}
.lj-nav__link:hover {
  color: var(--lj-cyan-soft);
  border-color: var(--lj-line);
  background: var(--lj-panel);
}
.lj-nav__link[aria-current="page"] {
  color: var(--lj-cyan);
  border-color: rgba(0, 229, 208, 0.45);
  background: rgba(0, 229, 208, 0.07);
}
.lj-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--lj-cyan);
}

/* 按钮 */
.lj-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid var(--lj-line);
  background: var(--lj-panel);
  color: var(--lj-fg);
  font-family: var(--lj-sans);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s var(--lj-ease), border-color 0.2s var(--lj-ease),
    color 0.2s var(--lj-ease);
}
.lj-btn:hover {
  border-color: var(--lj-cyan);
  background: var(--lj-panel-float);
  color: var(--lj-cyan-soft);
}
.lj-btn--primary {
  border-color: var(--lj-cyan);
  background: rgba(0, 229, 208, 0.08);
  color: var(--lj-cyan);
}
.lj-btn--primary:hover {
  background: var(--lj-cyan);
  border-color: var(--lj-cyan);
  color: var(--lj-ink);
}
.lj-btn--accent {
  border-color: var(--lj-orange);
  background: rgba(255, 107, 44, 0.08);
  color: var(--lj-orange);
}
.lj-btn--accent:hover {
  background: var(--lj-orange);
  border-color: var(--lj-orange);
  color: #1A0A03;
}
.lj-btn--quiet { background: transparent; color: var(--lj-muted); }
.lj-btn--block { width: 100%; }

.lj-navbar__cta { flex: 0 0 auto; margin-left: 4px; }

/* 移动菜单按钮 */
.lj-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--lj-line);
  background: var(--lj-panel);
  color: var(--lj-fg);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 0.2s var(--lj-ease), color 0.2s var(--lj-ease);
}
.lj-nav-toggle:hover { border-color: var(--lj-cyan); color: var(--lj-cyan-soft); }
.lj-nav-toggle__label { display: inline-block; }
.lj-nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}
.lj-nav-toggle__bars::before,
.lj-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--lj-cyan);
  transition: transform 0.2s var(--lj-ease), top 0.2s var(--lj-ease),
    bottom 0.2s var(--lj-ease);
}
.lj-nav-toggle__bars::before { top: 0; }
.lj-nav-toggle__bars::after { bottom: 0; }
.lj-nav-toggle[aria-expanded="true"] .lj-nav-toggle__bars::before {
  top: 4.5px;
  transform: rotate(45deg);
}
.lj-nav-toggle[aria-expanded="true"] .lj-nav-toggle__bars::after {
  bottom: 4.5px;
  transform: rotate(-45deg);
}

/* 滚动进度 */
.lj-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--lj-cyan) 0%, var(--lj-cyan) 62%, var(--lj-orange) 100%);
  transition: transform 0.1s linear;
  pointer-events: none;
}

/* --- 8. 移动侧滑栏目 ----------------------------------------------------- */
.lj-nav-scrim { display: none; }
.lj-nav-panel { display: none; }
.lj-nav-panel__foot {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--lj-line);
}
.lj-nav--panel { margin: 0; width: 100%; }
.lj-nav__list--stack { flex-direction: column; align-items: stretch; gap: 0; }
.lj-nav__list--stack .lj-nav__link {
  display: block;
  padding: 14px 12px;
  border: 0;
  border-top: 1px solid var(--lj-line);
  font-size: 15px;
}
.lj-nav__list--stack .lj-nav__item:last-child .lj-nav__link {
  border-bottom: 1px solid var(--lj-line);
}
.lj-nav__list--stack .lj-nav__link[aria-current="page"] {
  background: rgba(0, 229, 208, 0.07);
  border-color: var(--lj-line);
  color: var(--lj-cyan);
}
.lj-nav__list--stack .lj-nav__link[aria-current="page"]::after {
  left: 0;
  right: auto;
  top: 0;
  bottom: 0;
  width: 2px;
  height: auto;
}

html.lj-nav-open { overflow: hidden; }

@media (max-width: 1023px) {
  .lj-navbar .lj-nav { display: none; }
  .lj-navbar__cta { display: none; }
  .lj-nav-toggle { display: inline-flex; margin-left: auto; }

  .lj-nav-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(3, 7, 15, 0.72);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s var(--lj-ease), visibility 0.28s var(--lj-ease);
  }
  .lj-nav-scrim[data-open] { opacity: 1; visibility: visible; }

  .lj-nav-panel {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 95;
    width: min(88vw, 350px);
    padding: 96px 24px 32px;
    overflow-y: auto;
    background: linear-gradient(180deg, #081527 0%, #050B18 62%);
    border-left: 1px solid var(--lj-line);
    transform: translateX(103%);
    visibility: hidden;
    transition: transform 0.3s var(--lj-ease), visibility 0.3s var(--lj-ease);
  }
  .lj-nav-panel[data-open] { transform: translateX(0); visibility: visible; }
  .lj-nav-panel .lj-index { margin-bottom: 14px; }
  .lj-nav-panel__foot .lj-btn { justify-content: center; }
}

/* --- 9. 页脚 ------------------------------------------------------------- */
.lj-footer {
  margin-top: 96px;
  border-top: 1px solid var(--lj-line);
  background: linear-gradient(180deg, rgba(10, 20, 40, 0.92) 0%, #050B18 62%);
  color: var(--lj-muted);
}

.lj-footer__band {
  border-bottom: 1px solid var(--lj-line);
  background: linear-gradient(90deg, rgba(14, 58, 58, 0.6) 0%, rgba(5, 11, 24, 0) 55%, rgba(58, 26, 14, 0.5) 100%);
}
.lj-footer__band-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  min-height: 54px;
}
.lj-footer__band-text {
  margin: 0;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.lj-footer__band-inner .lj-status { margin-left: auto; }

.lj-footer__inner { padding-top: 56px; padding-bottom: 44px; }

.lj-footer__grid { display: grid; gap: 40px; grid-template-columns: minmax(0, 1fr); }

.lj-footer__col { min-width: 0; }
.lj-footer__col--brand .lj-brand { margin-bottom: 4px; }

.lj-footer__slogan {
  margin: 16px 0 8px;
  color: var(--lj-fg);
  font-size: 18px;
  font-weight: 800;
  font-stretch: 93%;
  letter-spacing: -0.01em;
}
.lj-footer__note {
  margin: 0;
  max-width: 28em;
  color: var(--lj-muted);
  font-size: 13px;
  line-height: 1.9;
}

.lj-footer__title {
  margin: 0 0 16px;
  color: var(--lj-fg);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1.5;
  text-transform: uppercase;
}

.lj-footer__list { display: grid; gap: 10px; list-style: none; margin: 0; padding: 0; }
.lj-footer__list a {
  color: var(--lj-muted);
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--lj-ease), border-color 0.2s var(--lj-ease);
}
.lj-footer__list a:hover { color: var(--lj-cyan); border-color: var(--lj-cyan); }

.lj-footer__versions {
  display: grid;
  gap: 6px;
  margin: 22px 0 0;
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
}
.lj-footer__versions > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 4px;
  border-bottom: 1px dashed var(--lj-line);
}
.lj-footer__versions dt { margin: 0; color: var(--lj-muted); }
.lj-footer__versions dd { margin: 0; }

.lj-footer__coop {
  margin: 16px 0 0;
  color: var(--lj-muted);
  font-size: 13px;
  line-height: 1.9;
}

.lj-footer__legal {
  border-top: 1px solid var(--lj-line);
  background: rgba(5, 11, 24, 0.75);
}
.lj-footer__legal-inner {
  display: flex;
  align-items: center;
  gap: 8px 24px;
  flex-wrap: wrap;
  padding-top: 20px;
  padding-bottom: 26px;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.7;
}
.lj-footer__legal-inner p { margin: 0; }
.lj-footer__copy { color: var(--lj-fg); margin-right: auto !important; }
.lj-footer__icp { color: var(--lj-muted); }
.lj-footer__contact { color: var(--lj-muted); white-space: nowrap; }
.lj-footer__contact .lj-num { color: var(--lj-fg); }

@media (min-width: 640px) {
  .lj-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .lj-footer__grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 56px;
  }
}

/* --- 10. 内容型通用组件 -------------------------------------------------- */
.lj-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  padding: 18px 0;
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
}
.lj-breadcrumb a {
  color: var(--lj-muted);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--lj-ease), border-color 0.2s var(--lj-ease);
}
.lj-breadcrumb a:hover { color: var(--lj-cyan); border-color: var(--lj-cyan); }
.lj-breadcrumb__sep { color: var(--lj-line); }
.lj-breadcrumb [aria-current="page"] { color: var(--lj-fg); }

.lj-prose { max-width: 38em; }
.lj-prose p { margin: 0 0 1.15em; color: var(--lj-fg); font-size: 16px; line-height: 1.8; }
.lj-prose h2 { font-size: 28px; margin-top: 1.6em; }
.lj-prose h3 { font-size: 20px; margin-top: 1.4em; }
.lj-prose ul,
.lj-prose ol { margin: 0 0 1.15em; padding-left: 1.4em; }
.lj-prose li { margin-bottom: 0.4em; }
.lj-prose a { border-bottom: 1px solid rgba(0, 229, 208, 0.5); }
.lj-prose a:hover { border-color: var(--lj-cyan-soft); }
.lj-prose code {
  padding: 1px 6px;
  background: var(--lj-cyan-deep);
  color: var(--lj-cyan-soft);
  font-family: var(--lj-mono);
  font-size: 13px;
}

/* 左侧数据锚点 */
.lj-anchor {
  position: sticky;
  top: 132px;
  align-self: start;
  display: grid;
  gap: 12px;
  padding-left: 16px;
  border-left: 1px solid var(--lj-line);
  font-family: var(--lj-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
}
.lj-anchor__item {
  position: relative;
  display: block;
  color: var(--lj-muted);
  transition: color 0.2s var(--lj-ease);
}
.lj-anchor__item::before {
  content: "";
  position: absolute;
  left: -17px;
  top: 0.66em;
  width: 8px;
  height: 1px;
  background: var(--lj-line);
  transition: width 0.2s var(--lj-ease), background-color 0.2s var(--lj-ease);
}
.lj-anchor__item:hover { color: var(--lj-cyan-soft); }
.lj-anchor__item[aria-current="true"] { color: var(--lj-cyan); }
.lj-anchor__item[aria-current="true"]::before {
  width: 14px;
  background: var(--lj-cyan);
}

/* 标签页 */
.lj-tabs {
  display: flex;
  align-items: stretch;
  gap: 0;
  border-bottom: 1px solid var(--lj-line);
  overflow-x: auto;
  scrollbar-width: thin;
}
.lj-tab {
  flex: 0 0 auto;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-bottom: 0;
  background: transparent;
  color: var(--lj-muted);
  font-family: var(--lj-sans);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.3;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.2s var(--lj-ease), background-color 0.2s var(--lj-ease),
    border-color 0.2s var(--lj-ease);
}
.lj-tab:hover { color: var(--lj-cyan-soft); }
.lj-tab[aria-selected="true"] {
  position: relative;
  border-color: var(--lj-line);
  background: var(--lj-panel-float);
  color: var(--lj-cyan);
}
.lj-tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--lj-cyan);
}
.lj-tabpanel { padding-top: 20px; }
.lj-tabpanel[hidden] { display: none; }
@media (prefers-reduced-motion: no-preference) {
  .lj-tabpanel { animation: lj-tab-in 0.24s var(--lj-ease) both; }
  @keyframes lj-tab-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* 图片容器 */
.lj-media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--lj-line);
  background: var(--lj-panel-float);
}
.lj-media img,
.lj-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
}
.lj-media--21x9 { aspect-ratio: 21 / 9; }
.lj-media--16x9 { aspect-ratio: 16 / 9; }
.lj-media--4x3 { aspect-ratio: 4 / 3; }
.lj-media--1x1 { aspect-ratio: 1 / 1; }
.lj-media__tag {
  position: absolute;
  left: 12px;
  top: 12px;
  z-index: 2;
}
.lj-media__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 28px 16px 12px;
  background: linear-gradient(180deg, rgba(5, 11, 24, 0) 0%, rgba(5, 11, 24, 0.92) 78%);
  color: var(--lj-fg);
  font-size: 13px;
  line-height: 1.7;
}
.lj-figure { display: grid; gap: 10px; margin: 0; }
.lj-figure figcaption {
  color: var(--lj-muted);
  font-family: var(--lj-mono);
  font-size: 12px;
  line-height: 1.7;
}

/* --- 11. 显现动效 -------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal].is-visible { animation: lj-reveal 0.26s var(--lj-ease) both; }
  @keyframes lj-reveal {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* --- 12. 响应式与无障碍降级 --------------------------------------------- */
@media (max-width: 767px) {
  .lj-shell { padding-left: 16px; padding-right: 16px; }
  h1, .lj-section-title--lead { font-size: 30px; }
  h2, .lj-section-title { font-size: 24px; }
  h3 { font-size: 18px; }
  .lj-panel { padding: 20px 16px; }
  .lj-topbar__brand { display: none; }
  .lj-meta__item--lang { display: none; }
  .lj-footer { margin-top: 64px; }
  .lj-footer__inner { padding-top: 40px; padding-bottom: 32px; }
  .lj-footer__legal-inner { padding-bottom: 32px; }
  .lj-stack--offset > *:nth-child(even) { margin-left: 0; }
}

@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;
  }
  .lj-status__dot { animation: none; }
  .lj-progress { transition: none; }
}