/* ============================================================
   乐鱼赛事 · 共享样式表  /assets/site.css
   深墨底 + 左侧垂直轨道 + 顶部细窄轨道
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --ink-0: #060B18;
  --ink-1: #0E1729;
  --paper: #F3EFE6;
  --paper-ink: #111826;
  --cyan: #38F2E0;
  --cyan-deep: #0FA9A0;
  --orange: #FF5A2B;
  --rail-blue: #1B3A6B;
  --mist: #E8EEF6;
  --slate: #8A99B0;
  --dim: #C9D4E4;

  --line: rgba(138, 153, 176, .20);
  --line-2: rgba(138, 153, 176, .34);
  --glow: rgba(56, 242, 224, .42);

  --rail-w: 132px;
  --head-h: 58px;

  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", system-ui, sans-serif;
  --font-editorial: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --ease: cubic-bezier(.4, 0, .2, 1);
}

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

body {
  margin: 0;
  min-height: 100vh;
  padding-top: var(--head-h);
  background: var(--ink-0);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (min-width: 960px) {
  body { padding-left: var(--rail-w); }
}

/* ---------- 中文排版基线 ---------- */

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 .55em;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--mist);
}

h1 { font-size: clamp(28px, 4.2vw, 46px); font-weight: 900; letter-spacing: -.03em; }
h2 { font-size: clamp(22px, 2.8vw, 32px); letter-spacing: -.02em; }
h3 { font-size: clamp(17px, 2vw, 22px); }
h4 { font-size: 16px; }

p { margin: 0 0 1em; }

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

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

ul, ol { margin: 0 0 1em; padding-left: 1.15em; }
li { margin: 0 0 .3em; }

::selection { background: var(--cyan); color: #04121A; }

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

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

/* ---------- 跳至主要内容 ---------- */

.skip-link {
  position: absolute;
  left: 12px;
  top: -72px;
  z-index: 120;
  padding: 11px 18px;
  background: var(--cyan);
  color: #04121A;
  font: 700 13px/1 var(--font-body);
  letter-spacing: .04em;
  border-radius: 2px;
  transition: top .16s var(--ease);
}

.skip-link:focus { top: 10px; color: #04121A; }

/* ============================================================
   头部：顶部细窄轨道 + 移动抽屉
   ============================================================ */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 60;
  background: rgba(6, 11, 24, .88);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

.rail-head {
  display: flex;
  align-items: stretch;
  height: var(--head-h);
}

/* 品牌署名 —— 宽度与左侧轨道对齐 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 var(--rail-w);
  width: var(--rail-w);
  height: 100%;
  padding: 0 12px 0 14px;
  border-right: 1px solid var(--line);
  color: var(--mist);
}

.brand__mark {
  position: relative;
  flex: none;
  width: 22px; height: 22px;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-deep));
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset: 6px 6px 6px 6px;
  background: var(--ink-0);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 58% 100%, 0 100%);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.brand__name {
  font: 900 15px/1 var(--font-display);
  letter-spacing: .03em;
  color: var(--mist);
  white-space: nowrap;
}

.brand__sub {
  font: 600 8.5px/1 var(--font-mono);
  letter-spacing: .26em;
  color: var(--cyan);
  opacity: .8;
}

/* 路径刻度 */
.rail-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1 1 auto;
  min-width: 0;
  padding: 0 18px;
}

.rail-crumb__dot {
  flex: none;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(56, 242, 224, .12);
}

.rail-crumb__label {
  flex: none;
  font: 500 10.5px/1 var(--font-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate);
}

.rail-crumb__value {
  min-width: 0;
  font-size: 13px;
  color: var(--mist);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rail-crumb::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}

/* 右侧操作区 */
.rail-head__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  margin-left: auto;
  padding: 0 16px 0 0;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 11px;
  background: rgba(56, 242, 224, .07);
  border: 1px solid rgba(56, 242, 224, .35);
  color: var(--cyan);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .08em;
  white-space: nowrap;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
  transition: background-color .16s var(--ease), color .16s var(--ease);
}

.version-badge:hover {
  background: rgba(56, 242, 224, .18);
  color: var(--cyan);
}

/* 抽屉开关 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(56, 242, 224, .06);
  border: 1px solid rgba(56, 242, 224, .4);
  border-radius: 2px;
  color: var(--cyan);
  font: 600 12.5px/1 var(--font-body);
  letter-spacing: .04em;
  cursor: pointer;
}

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 14px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform .18s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child { transform: translateY(3px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child { transform: translateY(-3px) rotate(-45deg); }

/* ---------- 侧边轨道导航 ---------- */

.rail-nav {
  position: fixed;
  left: 0;
  top: var(--head-h);
  bottom: 0;
  width: var(--rail-w);
  z-index: 55;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px 0 20px;
  overflow-y: auto;
  background: linear-gradient(180deg, rgba(14, 23, 41, .94), rgba(6, 11, 24, .97));
  border-right: 1px solid var(--line);
}

.rail-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rail-nav__item { margin: 0; }

.rail-nav__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 18px 11px 16px;
  border-left: 2px solid transparent;
  color: var(--slate);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .02em;
  transition: color .16s var(--ease), background-color .16s var(--ease), border-color .16s var(--ease);
}

.rail-nav__idx {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .16em;
  color: rgba(138, 153, 176, .7);
  transition: color .16s var(--ease);
}

.rail-nav__label { white-space: nowrap; }

.rail-nav__link:hover {
  color: var(--mist);
  background: rgba(56, 242, 224, .06);
  border-left-color: rgba(56, 242, 224, .5);
}

.rail-nav__link[aria-current="page"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(56, 242, 224, .14), transparent);
}

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

.rail-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 50%;
  width: 5px; height: 5px;
  margin-top: -2px;
  border-radius: 50%;
  background: var(--cyan);
}

.rail-nav__foot {
  margin: 18px 16px 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.rail-nav__foot-text {
  margin: 0;
  font: 500 10.5px/1.7 var(--font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(138, 153, 176, .75);
}

/* ---------- 滚动进度 ---------- */

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-deep), var(--cyan) 62%, var(--orange));
  pointer-events: none;
}

/* ============================================================
   通用版式
   ============================================================ */

.container { width: min(1180px, 100% - 40px); margin-inline: auto; }
.container--wide { width: min(1420px, 100% - 40px); }
.container--narrow { width: min(760px, 100% - 40px); }

.section { padding: clamp(46px, 6vw, 86px) 0; }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px 24px;
  margin-bottom: 28px;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: 500 11px/1 var(--font-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--cyan);
}

.lede {
  max-width: 34em;
  font-size: clamp(15.5px, 1.5vw, 18px);
  line-height: 1.72;
  color: var(--dim);
}

.prose { max-width: 38em; color: var(--dim); }
.prose p { max-width: 38em; }
.prose h2, .prose h3 { font-family: var(--font-editorial); font-weight: 700; }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  font: 500 11px/1.4 var(--font-mono);
  letter-spacing: .1em;
  color: var(--slate);
}

.tag--cyan { color: var(--cyan); border-color: rgba(56, 242, 224, .4); background: rgba(56, 242, 224, .06); }
.tag--orange { color: var(--orange); border-color: rgba(255, 90, 43, .4); background: rgba(255, 90, 43, .08); }

/* ---------- 网格与分屏 ---------- */

.grid { display: grid; gap: 16px; }
.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)); }

.split { display: grid; gap: 28px; grid-template-columns: 38fr 62fr; }
.split--30 { grid-template-columns: 30fr 70fr; }

@media (max-width: 960px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split, .split--30 { grid-template-columns: minmax(0, 1fr); gap: 22px; }
}

@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 面板与卡片 ---------- */

.panel {
  position: relative;
  padding: 20px;
  background: linear-gradient(160deg, var(--ink-1), rgba(6, 11, 24, .92));
  border: 1px solid var(--line);
  border-radius: 2px;
}

.panel--notch {
  border: 0;
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.lift {
  transition: transform .16s var(--ease), box-shadow .16s var(--ease), border-color .16s var(--ease);
}

.lift:hover,
.lift:focus-within {
  transform: translate(4px, 4px);
  border-color: rgba(56, 242, 224, .45);
  box-shadow: -5px -5px 0 -1px var(--glow), 0 14px 30px rgba(0, 0, 0, .45);
}

/* ---------- 图片容器（页面阶段放图） ---------- */

.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  background:
    linear-gradient(140deg, rgba(15, 169, 160, .20), rgba(6, 11, 24, .5) 58%),
    repeating-linear-gradient(90deg, rgba(138, 153, 176, .12) 0 1px, transparent 1px 42px),
    var(--ink-1);
}

.media--21x9 { aspect-ratio: 21 / 9; }
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }

.media--notch {
  border: 0;
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.72) brightness(.85) contrast(1.06);
}

.media__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 14px 10px;
  background: linear-gradient(0deg, rgba(6, 11, 24, .92), transparent);
  font: 500 11px/1.5 var(--font-mono);
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--mist);
  font: 600 13.5px/1 var(--font-body);
  letter-spacing: .04em;
  cursor: pointer;
  transition: background-color .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.btn--primary {
  background: var(--orange);
  color: #180703;
  font-weight: 700;
}

.btn--primary:hover { background: #FF7247; color: #180703; }

.btn--ghost {
  border-color: rgba(56, 242, 224, .4);
  background: rgba(56, 242, 224, .06);
  color: var(--cyan);
}

.btn--ghost:hover { background: rgba(56, 242, 224, .16); color: var(--cyan); }

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

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font: 500 12px/1.5 var(--font-mono);
  letter-spacing: .06em;
  color: var(--slate);
}

.breadcrumb__item { margin: 0; }
.breadcrumb a { color: var(--slate); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb__sep { color: rgba(138, 153, 176, .5); }

/* ---------- 渐显（由 JS 接管） ---------- */

[data-reveal="pending"] {
  opacity: 0;
  filter: brightness(.6);
}

[data-reveal="ready"] {
  opacity: 1;
  filter: none;
  transition: opacity .5s var(--ease), filter .5s var(--ease);
}

/* ============================================================
   页脚
   ============================================================ */

.site-footer {
  position: relative;
  margin-top: clamp(56px, 7vw, 96px);
  padding: clamp(44px, 5vw, 64px) 0 26px;
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(14, 23, 41, .55), rgba(6, 11, 24, .98)),
    var(--ink-0);
  color: var(--slate);
  font-size: 13.5px;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(138, 153, 176, .07) 0 1px, transparent 1px 64px);
  pointer-events: none;
}

.footer__inner {
  position: relative;
  width: min(1180px, 100% - 40px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(200px, 1.5fr) repeat(3, minmax(110px, 1fr)) minmax(200px, 1.5fr);
  gap: 34px 24px;
}

.footer__brand { min-width: 0; }

.brand--footer {
  width: auto;
  flex: 0 0 auto;
  height: auto;
  padding: 0;
  margin-bottom: 14px;
  border-right: 0;
}

.footer__lead {
  max-width: 24em;
  margin: 0 0 10px;
  color: var(--dim);
  font-size: 13.5px;
  line-height: 1.7;
}

.footer__note {
  margin: 0;
  font: 500 11.5px/1.7 var(--font-mono);
  letter-spacing: .04em;
  color: rgba(138, 153, 176, .85);
}

.footer__col { min-width: 0; }

.footer__title {
  position: relative;
  margin: 0 0 14px;
  padding-left: 14px;
  font: 600 11px/1 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px; height: 7px;
  margin-top: -3.5px;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 62% 100%, 0 100%);
}

.footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer__list li { margin: 0; }

.footer__list a {
  color: var(--slate);
  transition: color .14s var(--ease);
}

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

.footer__list--meta li {
  display: flex;
  gap: 8px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--slate);
  word-break: break-word;
}

.footer__key {
  flex: none;
  min-width: 34px;
  font: 500 11px/1.9 var(--font-mono);
  letter-spacing: .08em;
  color: rgba(56, 242, 224, .8);
}

.footer__legal {
  position: relative;
  width: min(1180px, 100% - 40px);
  margin: 38px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 20px;
  font-size: 12.5px;
  color: var(--slate);
}

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.footer__legal-links a { color: var(--slate); }
.footer__legal-links a:hover { color: var(--cyan); }

.footer__sep { color: rgba(138, 153, 176, .45); }

.footer__muted {
  margin: 0;
  font: 500 11.5px/1.6 var(--font-mono);
  letter-spacing: .06em;
  color: rgba(138, 153, 176, .75);
}

/* ============================================================
   响应式：平板 / 移动
   ============================================================ */

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

@media (max-width: 959px) {
  .brand {
    flex: 0 0 auto;
    width: auto;
    padding: 0 12px 0 14px;
    border-right: 0;
  }

  .rail-head__actions { padding-right: 10px; }

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

  .rail-nav {
    left: auto;
    right: 0;
    top: var(--head-h);
    width: min(320px, 86vw);
    padding: 20px 0 24px;
    z-index: 66;
    border-right: 0;
    border-left: 1px solid var(--line);
    box-shadow: -26px 0 60px rgba(0, 0, 0, .55);
    transform: translateX(101%);
    transition: transform .28s var(--ease);
  }

  .rail-nav[data-open] { transform: translateX(0); }

  body[data-nav-open] { overflow: hidden; }

  body[data-nav-open]::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 58;
    background: rgba(3, 6, 14, .7);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }

  .rail-nav__link { font-size: 15px; padding: 13px 18px 13px 18px; }
}

@media (max-width: 700px) {
  .rail-crumb { display: none; }
  .version-badge { display: none; }
  .rail-head__actions { gap: 8px; }
  body { font-size: 14.5px; }
}

@media (max-width: 560px) {
  .footer__inner { grid-template-columns: minmax(0, 1fr); }
  .footer__legal { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  [data-reveal="pending"] { opacity: 1; filter: none; }

  .lift:hover,
  .lift:focus-within { transform: none; }
}