/* =========================================================
   乐鱼赛事 · 共享样式表 /assets/site.css
   夜间赛场控制台：深海蓝底 + 荧光青识别 + 炽热橙强调
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body, h1, h2, h3, h4, h5, p, ol, ul, li, figure, blockquote, dl, dd { margin: 0; }
ol, ul { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; }
table { border-collapse: collapse; width: 100%; }

/* ---------- 2. 设计令牌 ---------- */
:root {
  --ink-900: #0A1B33;
  --ink-800: #12294A;
  --cyan: #25E0C8;
  --orange: #FF6A2B;
  --mint: #4BE3A1;
  --paper: #E8F2F6;
  --fg: #F4F8FB;
  --muted: #9DB3C7;
  --line: #2E4C70;

  --rail-w: 220px;
  --bar-h: 64px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.22, .7, .24, 1);
  --dur: .24s;
}

/* ---------- 3. 基础排版 ---------- */
body {
  background: var(--ink-900);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

p { line-height: 1.8; overflow-wrap: break-word; }
strong { font-weight: 800; color: var(--fg); }
::selection { background: var(--cyan); color: #04231f; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

/* ---------- 4. 通用布局 ---------- */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px;
}

.section { position: relative; padding: 68px 0; }
.section--tight { padding: 42px 0; }
.section--panel { background: var(--ink-800); }
.section--paper {
  --fg: #0A1B33;
  --muted: #46617f;
  --line: #B9CFDD;
  background: var(--paper);
  color: #0A1B33;
}

.section-head {
  display: grid;
  gap: 14px;
  max-width: 72ch;
  margin-bottom: 30px;
}

.grid { display: grid; gap: 22px; }
.grid--split { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
.grid--rail { grid-template-columns: minmax(0, 1fr) minmax(0, 300px); }

/* ---------- 5. 文字组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--orange);
  flex: 0 0 auto;
}

.section-title {
  font-size: clamp(28px, 4.6vw, 54px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.015em;
  font-stretch: condensed;
}
.section-title em { font-style: normal; color: var(--cyan); }

.lede {
  max-width: 64ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.meta-line {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 44px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  text-align: center;
  color: var(--fg);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--cyan); }

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #1E0A02;
}
.btn--primary:hover { background: #FF8248; border-color: #FF8248; }
.btn--primary:focus-visible { box-shadow: inset 0 0 0 2px #1E0A02; }

.btn--ghost {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(37, 224, 200, .08);
}
.btn--ghost:hover { background: rgba(37, 224, 200, .18); }

/* ---------- 7. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item a:hover { color: var(--cyan); }
.breadcrumb__item a { transition: color var(--dur) var(--ease); }
.breadcrumb__sep { color: var(--line); }
.breadcrumb__item[aria-current="page"] { color: var(--fg); }

/* ---------- 8. 切角面板 / 数据组件 ---------- */
.cut-panel {
  --cut: 18px;
  position: relative;
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
  filter: drop-shadow(0 0 1px var(--line));
}

.stat-block {
  padding: 20px 22px;
  background: linear-gradient(160deg, #12294A 0%, #0C2140 100%);
  border-left: 3px solid var(--cyan);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}
.stat-block__value {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 5.6vw, 56px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}
.stat-block__label {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
}

.data-strip {
  display: flex;
  gap: 14px;
  padding: 4px 22px 18px;
  margin: 0 -22px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.data-strip__item {
  flex: 0 0 auto;
  min-width: 176px;
  padding: 16px 18px;
  scroll-snap-align: start;
  background: var(--ink-800);
  border-left: 2px solid var(--line);
}
.data-strip__item:hover { border-left-color: var(--orange); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
  border: 1px solid var(--line);
}
.tag--live { color: var(--mint); border-color: rgba(75, 227, 161, .45); background: rgba(75, 227, 161, .08); }
.tag--hot { color: var(--orange); border-color: rgba(255, 106, 43, .45); background: rgba(255, 106, 43, .08); }

/* ---------- 9. 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(140deg, #16325A 0%, #0A1B33 62%, #06303C 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}
.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(115deg, rgba(37, 224, 200, .10) 0 2px, transparent 2px 14px);
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

/* ---------- 10. 折叠组 ---------- */
.accordion { border-top: 1px solid var(--line); }
.accordion__item { border-bottom: 1px solid var(--line); }
.accordion__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 4px;
  text-align: left;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--fg);
  transition: color var(--dur) var(--ease);
}
.accordion__trigger:hover { color: var(--cyan); }
.accordion__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}
.accordion__trigger[aria-expanded="true"]::after { content: "–"; }
.accordion__panel {
  height: 0;
  overflow: hidden;
  transition: height var(--dur) var(--ease);
}
.accordion__panel > * {
  padding: 0 4px 20px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 11. 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 120;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  color: #04231F;
  background: var(--cyan);
  transform: translateY(-180%);
  opacity: 0;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.skip-link:focus {
  transform: translateY(0);
  opacity: 1;
}

/* ---------- 12. 头部：左侧品牌轨道 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  padding: 28px 20px 24px;
  background: transparent;
  border-right: 1px solid transparent;
  transition: background-color .3s var(--ease), border-color .3s var(--ease);
}
.site-header[data-state="solid"] {
  background: var(--ink-900);
  border-right-color: var(--line);
}

.site-header__bar { display: block; }

.brand { display: block; }
.brand__name {
  display: block;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .04em;
  line-height: 1.1;
  color: var(--fg);
  font-stretch: condensed;
}
.brand__line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
}
.brand__line::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--orange);
  flex: 0 0 auto;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 6px 10px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
  background: rgba(37, 224, 200, .06);
  border: 1px solid var(--line);
}
.status-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--mint);
  animation: status-breathe 1.8s ease-in-out infinite;
}
@keyframes status-breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .4; transform: scale(.72); }
}

.nav-toggle { display: none; }
.nav-toggle__bars { display: inline-flex; flex-direction: column; gap: 4px; width: 18px; }
.nav-toggle__bars i { display: block; height: 2px; width: 100%; background: var(--cyan); transition: transform var(--dur) var(--ease); }

.site-header__bar::after { display: none; }

.rail-nav {
  flex: 1 1 auto;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  overflow-y: auto;
}
.rail-nav__caption {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
  color: var(--muted);
}
.rail-nav__list { display: flex; flex-direction: column; gap: 2px; }
.rail-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 8px;
  border-left: 2px solid transparent;
  color: var(--muted);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.rail-nav__link:hover {
  color: var(--fg);
  border-left-color: var(--orange);
  background: rgba(255, 255, 255, .04);
  transform: translateX(3px);
}
.rail-nav__link[aria-current="page"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(37, 224, 200, .16), transparent 78%);
}
.rail-nav__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  opacity: .85;
}
.rail-nav__text { font-size: 14px; letter-spacing: .02em; }

/* ---------- 13. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 56px;
  background: linear-gradient(180deg, #0A1B33 0%, #071528 100%);
  color: var(--fg);
}
.site-footer::before {
  content: "";
  display: block;
  height: 6px;
  background: repeating-linear-gradient(115deg,
    var(--cyan) 0 10px, transparent 10px 28px,
    var(--orange) 28px 36px, transparent 36px 56px);
  opacity: .55;
}
.site-footer__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 42px 22px 30px;
  display: grid;
  gap: 30px;
}

.footer-layer__title {
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--muted);
}

.footer-paths {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, .9fr);
}
.footer-paths__item { display: flex; }
.footer-path {
  display: block;
  width: 100%;
  padding: 14px 16px 16px;
  background: rgba(18, 41, 74, .65);
  border: 1px solid var(--line);
  border-left: 2px solid transparent;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.footer-path:hover {
  transform: translateY(-3px);
  border-left-color: var(--orange);
  background: rgba(18, 41, 74, 1);
}
.footer-path__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}
.footer-path__name {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}
.footer-path__desc {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.footer-download {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  background: rgba(18, 41, 74, .8);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}
.footer-download__copy { max-width: 56ch; }
.footer-download__text {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}

.footer-layer--meta {
  display: grid;
  gap: 26px;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.footer-meta__list { display: grid; gap: 10px; }
.footer-meta__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
  font-size: 13.5px;
}
.footer-meta__key {
  min-width: 76px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--muted);
}
.footer-meta__value { color: var(--fg); }

.policy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-bottom: 14px;
}
.policy-links a {
  font-size: 13px;
  color: var(--cyan);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}
.policy-links a:hover { border-bottom-color: var(--cyan); }
.footer-note {
  font-size: 12px;
  line-height: 1.9;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- 14. 阅读进度与显现 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 90;
  pointer-events: none;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

html.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateX(-16px);
}
html.has-reveal [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

/* ---------- 15. 桌面：内容让位轨道 ---------- */
@media (min-width: 901px) {
  body { padding-left: var(--rail-w); }
  .scroll-progress {
    left: var(--rail-w);
    width: calc(100% - var(--rail-w));
  }
}

/* ---------- 16. 平板调整 ---------- */
@media (max-width: 1080px) {
  .grid--split,
  .grid--rail { grid-template-columns: minmax(0, 1fr); }
  .footer-paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 17. 移动：顶部标签条 + 全屏索引层 ---------- */
@media (max-width: 900px) {
  :root { --bar-h: 62px; }
  body { padding-top: var(--bar-h); }
  html.nav-open { overflow: hidden; }

  .site-header {
    right: 0;
    bottom: auto;
    width: 100%;
    height: var(--bar-h);
    flex-direction: row;
    align-items: center;
    padding: 0 12px 0 16px;
    background: var(--ink-900);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .site-header[data-state="solid"] { border-right: 0; }

  .site-header__bar {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
  }
  .brand__name { font-size: 17px; letter-spacing: .02em; }
  .brand__line { display: none; }

  .header-status {
    margin: 0 0 0 auto;
    padding: 5px 8px;
    font-size: 10px;
    letter-spacing: .06em;
    white-space: nowrap;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 2px 0 12px;
    margin-left: 4px;
    border-left: 1px solid var(--line);
    color: var(--fg);
  }
  .nav-toggle__text {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .14em;
    color: var(--muted);
  }
  .site-header[data-open] .nav-toggle__bars i:first-child { transform: translateY(3px) rotate(45deg); }
  .site-header[data-open] .nav-toggle__bars i:last-child { transform: translateY(-3px) rotate(-45deg); }

  .rail-nav {
    position: fixed;
    top: var(--bar-h);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 55;
    margin: 0;
    padding: 24px 20px 48px;
    border-top: 1px solid var(--line);
    background: linear-gradient(180deg, #0A1B33 0%, #061225 100%);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-14px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur) linear;
  }
  .site-header[data-open] .rail-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .rail-nav__caption { margin-bottom: 10px; }
  .rail-nav__link {
    font-size: 18px;
    padding: 16px 12px;
    border-left: 0;
    border-bottom: 1px solid rgba(46, 76, 112, .55);
  }
  .rail-nav__link:hover { transform: none; }
  .rail-nav__link[aria-current="page"] {
    background: linear-gradient(90deg, rgba(37, 224, 200, .14), transparent 80%);
    box-shadow: inset 3px 0 0 var(--cyan);
  }

  .footer-layer--meta { grid-template-columns: minmax(0, 1fr); }
  .footer-download { flex-direction: column; align-items: flex-start; }
  .footer-download .btn { width: 100%; }
  .section { padding: 48px 0; }
}

@media (max-width: 520px) {
  .footer-paths { grid-template-columns: minmax(0, 1fr); }
  .header-status { font-size: 9.5px; }
  .brand__name { font-size: 16px; }
}

/* ---------- 18. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .status-dot { animation: none; }
  html.has-reveal [data-reveal] {
    opacity: 1;
    transform: none;
  }
}