/* =========================================================
   乐宝体育 · 共享样式表  /assets/site.css
   夜场草皮 + 电子记分牌 的暗色数据阅读体系
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ol, ul { margin: 0; }

ol, ul { padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; }

button, input, select, textarea { font: inherit; color: inherit; }

a { color: inherit; }

::selection { background: var(--lb-cyan); color: #04100D; }

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

/* ---------- 2. 设计变量 ---------- */
:root {
  --lb-night: #061713;
  --lb-turf: #0B2A22;
  --lb-cyan: #2BE3C0;
  --lb-cyan-soft: #7CF3DC;
  --lb-orange: #FF5A2B;
  --lb-amber: #FFB25C;
  --lb-white: #F2FBF8;
  --lb-mist: #8FA8A1;
  --lb-line: #17362F;
  --lb-ink: #04100D;

  --lb-wrap: 1280px;
  --lb-text: 820px;
  --lb-gutter: clamp(16px, 4vw, 44px);
  --lb-radius: 2px;

  --lb-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
             "Source Han Sans SC", "Noto Sans CJK SC", system-ui,
             -apple-system, "Segoe UI", Roboto, sans-serif;
  --lb-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
             "Liberation Mono", "Courier New", monospace;
}

/* ---------- 3. 基础排版（中文阅读） ---------- */
body {
  min-height: 100vh;
  background-color: var(--lb-night);
  background-image:
    linear-gradient(rgba(23, 54, 47, 0.34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 54, 47, 0.34) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
  color: var(--lb-white);
  font-family: var(--lb-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.18;
  color: var(--lb-white);
}

h1 { font-size: clamp(30px, 5vw, 56px); }
h2 { font-size: clamp(22px, 3vw, 34px); }
h3 { font-size: clamp(17px, 2vw, 21px); font-weight: 700; }

p { color: var(--lb-white); }

.lb-num,
[data-year] { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

.lb-visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 4. 容器与骨架 ---------- */
.lb-wrap {
  position: relative;
  width: 100%;
  max-width: var(--lb-wrap);
  margin-inline: auto;
  padding-inline: var(--lb-gutter);
}

.lb-wrap--text { max-width: var(--lb-text); }

.lb-section { padding-block: clamp(48px, 7vw, 96px); }
.lb-section--turf { background-color: var(--lb-turf); }
.lb-section--line { border-top: 1px solid var(--lb-line); }

.lb-eyebrow {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lb-cyan);
}

.lb-display {
  font-size: clamp(38px, 9vw, 120px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.92;
  color: var(--lb-white);
}

.lb-lede {
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--lb-mist);
}

.lb-prose { max-width: 68ch; }
.lb-prose p { margin-bottom: 1.1em; color: var(--lb-mist); }
.lb-prose h2 { margin-top: 1.6em; }
.lb-prose h3 { margin-top: 1.4em; }
.lb-prose a { color: var(--lb-cyan-soft); text-decoration: underline; text-underline-offset: 3px; }
.lb-prose ul { padding-left: 1.1em; list-style: square; color: var(--lb-mist); }

/* ---------- 5. 网格 ---------- */
.lb-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 32px);
}

.lb-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.lb-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.lb-grid--split { grid-template-columns: minmax(0, 3fr) minmax(0, 7fr); }

@media (max-width: 860px) {
  .lb-grid--2,
  .lb-grid--3,
  .lb-grid--split { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 6. 按钮 ---------- */
.lb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  background-color: transparent;
  color: var(--lb-white);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.lb-btn:hover {
  background-color: var(--lb-turf);
  border-color: var(--lb-cyan);
  color: var(--lb-cyan-soft);
}

.lb-btn--accent {
  background-color: var(--lb-orange);
  border-color: var(--lb-orange);
  color: #150703;
}

.lb-btn--accent:hover {
  background-color: #FF7A52;
  border-color: #FF7A52;
  color: #150703;
}

.lb-btn--cyan {
  background-color: var(--lb-cyan);
  border-color: var(--lb-cyan);
  color: #04100D;
}

.lb-btn--cyan:hover {
  background-color: var(--lb-cyan-soft);
  border-color: var(--lb-cyan-soft);
  color: #04100D;
}

.lb-btn--ghost {
  border-color: var(--lb-cyan);
  color: var(--lb-cyan);
}

.lb-btn--sm {
  padding: 8px 13px;
  font-size: 12.5px;
}

/* ---------- 7. 跳转链接 ---------- */
.lb-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 16px;
  background-color: var(--lb-cyan);
  color: #04100D;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--lb-radius);
  transform: translateY(-160%);
  transition: transform 0.18s ease;
}

.lb-skip:focus { transform: translateY(0); }

/* ---------- 8. 命令栏页头 ---------- */
.lb-header {
  position: sticky;
  top: 0;
  z-index: 60;
}

.lb-header__bar {
  position: relative;
  background-color: rgba(4, 16, 13, 0.94);
  border-bottom: 1px solid var(--lb-line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.lb-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  min-height: 68px;
  padding-block: 10px;
  transition: min-height 0.2s ease, padding 0.2s ease;
}

.lb-header.is-compact .lb-header__inner {
  min-height: 52px;
  padding-block: 4px;
}

.lb-header.is-compact .lb-brand__tag { display: none; }

.lb-header__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background-image: linear-gradient(90deg, var(--lb-cyan), var(--lb-orange));
  pointer-events: none;
}

/* 字标 */
.lb-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: 0 0 auto;
  text-decoration: none;
}

.lb-brand__mark {
  width: 13px;
  height: 13px;
  background-color: var(--lb-cyan);
  box-shadow: 0 0 12px rgba(43, 227, 192, 0.7);
  transform: rotate(45deg);
}

.lb-brand__text { display: block; }

.lb-brand__name {
  display: block;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: var(--lb-white);
}

.lb-brand__tag {
  display: block;
  font-size: 10.5px;
  letter-spacing: 0.14em;
  line-height: 1.5;
  color: var(--lb-mist);
}

/* 移动端栏目按钮 */
.lb-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 38px;
  padding: 0;
  background-color: transparent;
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  color: var(--lb-white);
  cursor: pointer;
}

.lb-nav-toggle:hover { border-color: var(--lb-cyan); color: var(--lb-cyan); }

.lb-nav-toggle__bars {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
}

.lb-nav-toggle__bars i {
  display: block;
  height: 1px;
  background-color: currentColor;
  transition: transform 0.2s ease;
}

.lb-nav-toggle[aria-expanded="true"] .lb-nav-toggle__bars i:first-child {
  transform: translateY(2.5px) rotate(45deg);
}

.lb-nav-toggle[aria-expanded="true"] .lb-nav-toggle__bars i:last-child {
  transform: translateY(-2.5px) rotate(-45deg);
}

/* 导航 */
.lb-nav { margin-left: auto; }

.lb-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

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

.lb-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px clamp(8px, 1vw, 13px);
  color: var(--lb-mist);
  font-size: 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.18s ease;
}

.lb-nav__link::after {
  content: "";
  position: absolute;
  left: clamp(8px, 1vw, 13px);
  right: clamp(8px, 1vw, 13px);
  bottom: 4px;
  height: 1px;
  background-color: var(--lb-cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.2s ease;
}

.lb-nav__link:hover { color: var(--lb-white); }
.lb-nav__link:hover::after { transform: scaleX(1); }

.lb-nav__link[aria-current="page"] { color: var(--lb-cyan); }
.lb-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.lb-nav__index {
  font-family: var(--lb-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--lb-amber);
}

.lb-nav__link[aria-current="page"] .lb-nav__index { color: var(--lb-cyan); }

/* 右侧指挥区 */
.lb-header__side {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.lb-rhythm {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px;
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  color: var(--lb-amber);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.lb-rhythm__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--lb-orange);
  box-shadow: 0 0 8px var(--lb-orange);
  animation: lb-pulse 2.4s ease-in-out infinite;
}

@keyframes lb-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.32; }
}

/* ---------- 9. 页头断点 ---------- */
@media (max-width: 1240px) {
  .lb-nav__link { font-size: 13.5px; padding-inline: 9px; }
  .lb-nav__link::after { left: 9px; right: 9px; }
}

@media (max-width: 1140px) {
  .lb-header__cta { display: none; }
}

@media (max-width: 1040px) {
  .lb-brand__tag { display: none; }
}

@media (max-width: 980px) {
  .lb-nav-toggle { display: inline-flex; }

  .lb-header__side { margin-left: auto; }

  .lb-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-left: 0;
    display: none;
    max-height: 72vh;
    overflow-y: auto;
    padding: 6px var(--lb-gutter) 22px;
    background-color: #04100D;
    border-top: 1px solid var(--lb-line);
    border-bottom: 1px solid var(--lb-line);
  }

  .lb-nav[data-open] { display: block; }

  .lb-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .lb-nav__item { border-bottom: 1px solid var(--lb-line); }
  .lb-nav__item:last-child { border-bottom: 0; }

  .lb-nav__link {
    justify-content: flex-start;
    gap: 12px;
    padding: 15px 0;
    font-size: 15.5px;
    color: var(--lb-white);
  }

  .lb-nav__link::after { left: 0; right: auto; width: 22px; bottom: 9px; }
  .lb-nav__index { font-size: 11px; }
}

@media (max-width: 620px) {
  .lb-rhythm { display: none; }
  .lb-header__side { gap: 0; }
  .lb-header__inner { min-height: 60px; }
}

/* ---------- 10. 页脚 ---------- */
.lb-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(56px, 8vw, 104px);
  background-color: var(--lb-ink);
  border-top: 1px solid var(--lb-line);
}

.lb-footer__grid {
  display: grid;
  grid-template-columns: 1.05fr 1.35fr 1.05fr 1fr;
  gap: clamp(22px, 3vw, 40px);
  padding-block: clamp(40px, 5vw, 60px) clamp(26px, 3vw, 38px);
}

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

.lb-footer__title {
  margin-bottom: 16px;
  color: var(--lb-amber);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
}

.lb-footer__list {
  display: grid;
  gap: 9px;
}

.lb-footer__list a {
  color: var(--lb-mist);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.18s ease;
}

.lb-footer__list a:hover { color: var(--lb-cyan); }

.lb-footer__list--legal {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--lb-line);
}

.lb-footer__list--legal a { font-size: 13px; }

.lb-footer__text {
  color: var(--lb-mist);
  font-size: 14px;
  line-height: 1.8;
}

.lb-footer__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--lb-line);
}

.lb-footer__stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 2px;
}

.lb-footer__num {
  color: var(--lb-white);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.lb-footer__label {
  color: var(--lb-mist);
  font-size: 11px;
  letter-spacing: 0.14em;
}

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

.lb-contact__label {
  display: block;
  color: var(--lb-mist);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.lb-contact__value {
  display: block;
  color: var(--lb-cyan-soft);
  font-family: var(--lb-mono);
  font-size: 13px;
  line-height: 1.6;
  word-break: break-all;
}

.lb-footer__icp {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--lb-line);
  color: var(--lb-amber);
  font-family: var(--lb-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}

.lb-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 18px 26px;
  border-top: 1px solid var(--lb-line);
}

.lb-footer__mono {
  color: var(--lb-mist);
  font-family: var(--lb-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

/* 回到页首 */
.lb-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 55;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: rgba(4, 16, 13, 0.92);
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  color: var(--lb-cyan);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease, color 0.18s ease, border-color 0.18s ease;
}

.lb-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.lb-top:hover {
  border-color: var(--lb-cyan);
  color: var(--lb-cyan-soft);
}

@media (min-width: 1024px) {
  .lb-top { right: 26px; bottom: 26px; }
}

@media (max-width: 1080px) {
  .lb-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .lb-footer__grid { grid-template-columns: minmax(0, 1fr); }
  .lb-footer__bottom { flex-direction: column; }
}

/* ---------- 11. 横向数据带 ---------- */
.lb-rail { position: relative; }

.lb-rail__track {
  display: flex;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--lb-line) transparent;
}

.lb-rail__track::-webkit-scrollbar { height: 4px; }
.lb-rail__track::-webkit-scrollbar-track { background-color: transparent; }
.lb-rail__track::-webkit-scrollbar-thumb { background-color: var(--lb-line); }

.lb-rail__item {
  flex: 0 0 auto;
  min-width: 190px;
  padding: 16px 22px;
  border-left: 1px solid var(--lb-line);
  scroll-snap-align: start;
}

.lb-rail__item:first-child { border-left: 0; }

/* ---------- 12. 图片容器 ---------- */
.lb-media {
  position: relative;
  overflow: hidden;
  background-color: var(--lb-turf);
  border: 1px solid var(--lb-line);
}

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

.lb-media--wide { aspect-ratio: 16 / 9; }
.lb-media--tall { aspect-ratio: 3 / 4; }
.lb-media--square { aspect-ratio: 1 / 1; }

.lb-media--crop img { object-position: 62% 38%; }

.lb-media--slant {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

.lb-media__cap {
  display: block;
  margin-top: 10px;
  color: var(--lb-mist);
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

/* ---------- 13. 筛选条 ---------- */
.lb-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.lb-chip {
  padding: 7px 14px;
  background-color: transparent;
  border: 1px solid var(--lb-line);
  border-radius: var(--lb-radius);
  color: var(--lb-mist);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.lb-chip:hover {
  color: var(--lb-white);
  border-color: var(--lb-cyan);
}

.lb-chip[aria-pressed="true"] {
  background-color: var(--lb-cyan);
  border-color: var(--lb-cyan);
  color: #04100D;
}

[data-filter-item][data-hidden] { display: none !important; }

/* ---------- 14. 折叠面板 ---------- */
.lb-fold {
  border-top: 1px solid var(--lb-line);
}

.lb-fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 0;
  color: var(--lb-white);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.lb-fold summary::-webkit-details-marker { display: none; }

.lb-fold summary::after {
  content: "+";
  color: var(--lb-cyan);
  font-family: var(--lb-mono);
  font-size: 15px;
  line-height: 1;
}

.lb-fold[open] summary::after { content: "−"; }

.lb-fold__body {
  padding-bottom: 18px;
  color: var(--lb-mist);
  font-size: 14.5px;
  line-height: 1.85;
}

/* ---------- 15. 面包屑 ---------- */
.lb-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-block: 18px 0;
  color: var(--lb-mist);
  font-size: 11.5px;
  letter-spacing: 0.12em;
}

.lb-crumb a {
  color: var(--lb-mist);
  text-decoration: none;
  transition: color 0.18s ease;
}

.lb-crumb a:hover { color: var(--lb-cyan); }

.lb-crumb__sep {
  color: var(--lb-line);
  font-family: var(--lb-mono);
}

/* ---------- 16. 通用数据刻度 ---------- */
.lb-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background-color: var(--lb-line);
  border: 1px solid var(--lb-line);
}

.lb-stat {
  padding: 18px 20px;
  background-color: var(--lb-night);
}

.lb-stat__value {
  display: block;
  color: var(--lb-white);
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.lb-stat__label {
  display: block;
  margin-top: 4px;
  color: var(--lb-mist);
  font-size: 11px;
  letter-spacing: 0.14em;
}

/* ---------- 17. 显现动效 ---------- */
.lb-js [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ---------- 18. 降级 ---------- */
@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;
  }

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

  .lb-top {
    transform: none;
  }
}