/* ==========================================================================
   乐鱼主站 · 共享站点样式
   视觉母题：深夜看台记分牌 / 深海墨蓝 + 品牌橙 + 数据青绿
   ========================================================================== */

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

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

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

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

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

button {
  font: inherit;
  color: inherit;
}

a {
  color: inherit;
}

/* ---------- 2. 设计变量 ---------- */
:root {
  --ink-900: #06131F;
  --ink-800: #0B1D2C;
  --ink-700: #112A3D;
  --line: #244258;
  --text: #EDF5F8;
  --text-dim: #A9BCC8;

  --orange: #FF6A2B;
  --orange-soft: #FF9A6B;
  --mint: #2EE6A8;
  --mint-deep: #128A63;

  --rail-w: 244px;
  --rail-h: 64px;
  --content-max: 1200px;

  --font-display: "Barlow Condensed", "Oswald", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink-900);
  background-image:
    radial-gradient(circle at 82% -10%, rgba(46, 230, 168, .07), transparent 46%),
    radial-gradient(circle at 6% 4%, rgba(255, 106, 43, .08), transparent 40%);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.72;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -.005em;
  color: var(--text);
}

p {
  max-width: 42ch;
}

a {
  color: var(--orange-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

strong, b {
  font-weight: 700;
  color: var(--text);
}

::selection {
  background: var(--orange);
  color: var(--ink-900);
}

/* ---------- 4. 焦点可见 ---------- */
:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 5. 可用性工具 ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 8px;
  background: var(--orange);
  color: var(--ink-900);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform .18s var(--ease);
}

.skip-link:focus {
  transform: none;
}

/* ---------- 6. 头部：侧边轨道 ---------- */
.site-rail {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 80;
  width: var(--rail-w);
  display: flex;
  background:
    linear-gradient(180deg, #081B29 0%, var(--ink-900) 44%, #040E18 100%);
  border-right: 1px solid var(--line);
}

.site-rail::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--orange), transparent 72%);
  opacity: .85;
  pointer-events: none;
}

.rail-inner {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 0;
  padding: 24px 16px 20px;
}

/* 品牌 */
.rail-brand {
  display: block;
  position: relative;
  padding: 2px 2px 16px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--text);
}

.rail-mark {
  display: block;
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .2em;
  color: var(--text);
}

.rail-mark::after {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-left: 8px;
  vertical-align: top;
  background: var(--orange);
}

.rail-brand-name {
  display: block;
  margin-top: 9px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--text);
}

.rail-tagline {
  display: block;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--text-dim);
}

/* 移动抽屉按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  min-width: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(17, 42, 61, .7);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  cursor: pointer;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.nav-toggle:hover {
  border-color: var(--orange);
  color: var(--orange-soft);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 15px;
  height: 10px;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .18s var(--ease), top .18s var(--ease);
}

.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { top: 8px; }

.site-rail[data-open] .nav-toggle__bars::before {
  top: 4px;
  transform: rotate(45deg);
}

.site-rail[data-open] .nav-toggle__bars::after {
  top: 4px;
  transform: rotate(-45deg);
}

/* 导航 */
.rail-nav {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  gap: 18px;
  padding-top: 14px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.rail-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.rail-link {
  position: relative;
  display: grid;
  grid-template-columns: 26px 1fr;
  align-items: baseline;
  gap: 10px;
  padding: 9px 8px 9px 14px;
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  transition: color .16s var(--ease), background-color .16s var(--ease);
}

.rail-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 2px;
  background: transparent;
  transition: background-color .16s var(--ease);
}

.rail-link:hover {
  color: var(--text);
  background: rgba(237, 245, 248, .05);
}

.rail-index {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .06em;
  color: #5C7C90;
  transition: color .16s var(--ease);
}

.rail-label {
  display: inline;
}

.rail-link[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 106, 43, .07);
}

.rail-link[aria-current="page"]::before {
  background: var(--orange);
}

.rail-link[aria-current="page"] .rail-index {
  color: var(--orange);
}

.rail-link[aria-current="page"] .rail-label::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 8px;
  border-radius: 50%;
  background: var(--mint);
  vertical-align: middle;
}

/* 轨道底部动作区 */
.rail-cta {
  display: grid;
  gap: 8px;
  padding-top: 4px;
}

.rail-meta {
  display: flex;
  align-items: center;
  gap: 7px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .03em;
  color: var(--text-dim);
  white-space: nowrap;
}

.rail-version {
  color: var(--mint);
  letter-spacing: .06em;
}

.rail-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(46, 230, 168, .16);
}

/* ---------- 7. 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: .02em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform .16s var(--ease), background-color .16s var(--ease),
              border-color .16s var(--ease), color .16s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
}

.btn--primary:hover {
  background: var(--orange-soft);
  border-color: var(--orange-soft);
}

.btn--ghost {
  background: rgba(237, 245, 248, .04);
  border-color: var(--line);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--orange-soft);
  color: var(--orange-soft);
}

/* ---------- 8. 滚动进度 / 返回顶部 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: var(--rail-w);
  z-index: 90;
  width: 3px;
  height: calc(var(--progress, 0) * 100%);
  background: linear-gradient(180deg, var(--orange) 0%, var(--orange-soft) 38%, var(--mint) 100%);
  pointer-events: none;
  transition: height .09s linear;
}

.to-top {
  position: fixed;
  bottom: 18px;
  left: 18px;
  z-index: 85;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(11, 29, 44, .95);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .2s var(--ease), transform .2s var(--ease),
              visibility .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  border-color: var(--orange);
  color: var(--orange-soft);
}

.to-top__arrow {
  font-size: 14px;
  line-height: 1;
  color: var(--orange);
}

.to-top__label {
  white-space: nowrap;
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: 72px;
  padding: 48px 0 26px;
  background: linear-gradient(180deg, #071624 0%, #040E17 100%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--orange);
}

.footer-inner {
  width: min(100% - 36px, var(--content-max));
  margin-inline: auto;
}

.footer-scale {
  height: 8px;
  margin-bottom: 30px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 15px);
  opacity: .85;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 30px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.footer-mark {
  font-family: var(--font-display);
  font-size: clamp(44px, 8vw, 86px);
  font-weight: 700;
  line-height: .82;
  letter-spacing: .14em;
  color: var(--text);
}

.footer-summary {
  flex: 1 1 240px;
  max-width: 34ch;
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--text-dim);
}

.footer-version {
  padding: 5px 11px;
  border: 1px solid rgba(46, 230, 168, .35);
  border-radius: 999px;
  background: rgba(46, 230, 168, .08);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--mint);
  white-space: nowrap;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 30px 24px;
  padding: 34px 0 36px;
}

.footer-col {
  min-width: 0;
}

.footer-col-title {
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-links a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--text);
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.footer-links a:hover {
  color: var(--orange-soft);
  padding-left: 6px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-contact__value {
  max-width: 100%;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  word-break: break-word;
}

.footer-note {
  max-width: 100%;
  margin-top: 4px;
  padding-left: 11px;
  border-left: 2px solid var(--line);
  font-size: 12.5px;
  line-height: 1.68;
  color: var(--text-dim);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.footer-legal__icp,
.footer-legal__copy {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--text-dim);
}

/* ---------- 10. 页面容器与通用组件 ---------- */
.wrap {
  width: min(100% - 32px, var(--content-max));
  margin-inline: auto;
}

.grid {
  display: grid;
  gap: var(--gap, 16px);
}

.panel {
  position: relative;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-800);
}

.panel--glass {
  background: rgba(17, 42, 61, .56);
  border-color: rgba(36, 66, 88, .9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--mint);
}

.sec-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 62px);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.02em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

/* 面包屑 */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--text-dim);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--line);
}

.breadcrumbs a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color .16s var(--ease);
}

.breadcrumbs a:hover {
  color: var(--orange-soft);
}

.breadcrumbs [aria-current="page"] {
  color: var(--text);
}

/* 数据条 */
.data-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.data-bar__track {
  position: relative;
  flex: 1 1 auto;
  height: 6px;
  border-radius: 999px;
  background: var(--ink-700);
  overflow: hidden;
}

.data-bar__fill {
  display: block;
  height: 100%;
  width: var(--fill, 50%);
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mint-deep), var(--mint));
}

.data-bar__value {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--text-dim);
  white-space: nowrap;
}

/* 状态标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(237, 245, 248, .03);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--text-dim);
  white-space: nowrap;
}

.chip--mint {
  background: var(--mint);
  border-color: var(--mint);
  color: var(--ink-900);
}

.chip--orange {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink-900);
}

/* ---------- 11. 图片容器基础规则 ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ink-700);
  aspect-ratio: 16 / 9;
}

.media-frame > img,
.media-frame > svg,
.media-frame > picture > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-frame--grid {
  background-color: var(--ink-800);
  background-image:
    linear-gradient(rgba(36, 66, 88, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36, 66, 88, .55) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
  background-position: center center;
}

.media-frame__caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 30px 14px 12px;
  background: linear-gradient(180deg, transparent, rgba(6, 19, 31, .92));
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--text-dim);
}

/* ---------- 12. 桌面与平板 ---------- */
@media (min-width: 900px) {
  body {
    padding-left: var(--rail-w);
  }
}

@media (min-width: 900px) and (max-width: 1199px) {
  :root {
    --rail-w: 212px;
  }

  .rail-mark { font-size: 24px; }
  .rail-link { font-size: 13.5px; padding-block: 8px; }
  .btn { font-size: 12.5px; padding: 11px 12px; }
  .rail-meta { font-size: 10px; }
}

@media (min-width: 760px) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(230px, 1.4fr);
  }
}

/* ---------- 13. 移动端 ---------- */
@media (max-width: 899px) {
  .site-rail {
    position: sticky;
    top: 0;
    right: 0;
    left: 0;
    bottom: auto;
    width: 100%;
    height: var(--rail-h);
    display: block;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(6, 19, 31, .97);
  }

  .site-rail::before {
    height: 2px;
    background: linear-gradient(90deg, var(--orange), transparent 60%);
  }

  .rail-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: var(--rail-h);
    padding: 0 16px;
  }

  .rail-brand {
    display: flex;
    align-items: baseline;
    gap: 9px;
    padding: 0;
    border-bottom: 0;
  }

  .rail-mark {
    font-size: 21px;
    letter-spacing: .18em;
  }

  .rail-brand-name {
    margin-top: 0;
    font-size: 13px;
    letter-spacing: .06em;
  }

  .rail-tagline {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .rail-nav {
    position: fixed;
    top: var(--rail-h);
    right: 0;
    left: 0;
    z-index: 79;
    flex: none;
    gap: 16px;
    max-height: calc(100vh - var(--rail-h));
    padding: 12px 16px 22px;
    overflow-y: auto;
    background: var(--ink-800);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(0, 0, 0, .45);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s var(--ease);
  }

  .site-rail[data-open] .rail-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }

  .rail-nav-list {
    gap: 0;
  }

  .rail-link {
    grid-template-columns: 30px 1fr;
    padding: 13px 8px;
    border-bottom: 1px solid rgba(36, 66, 88, .55);
    border-radius: 0;
    font-size: 15px;
  }

  .rail-link::before {
    top: 12px;
    bottom: 12px;
  }

  .rail-cta {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 2px;
  }

  .rail-meta {
    padding-top: 14px;
  }

  .scroll-progress {
    top: var(--rail-h);
    left: 0;
    width: calc(var(--progress, 0) * 100%);
    height: 2px;
    background: linear-gradient(90deg, var(--orange) 0%, var(--mint) 100%);
    transition: width .09s linear;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
    left: auto;
    width: 44px;
    height: 44px;
    padding: 0;
    justify-content: center;
    border-radius: 50%;
  }

  .to-top__label {
    display: none;
  }

  .site-footer {
    margin-top: 56px;
    padding-top: 38px;
  }

  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 479px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-mark {
    font-size: 52px;
  }
}

/* ---------- 14. 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .btn:hover,
  .to-top {
    transform: none;
  }
}