/* =============================================================
   乐鱼官站 Site Kit
   文件：/assets/site.css
   概念：夜间球场数据面板 · 左侧轨道导航 · 记分牌信息架构
   ============================================================= */

/* ---------- Token / Reset ---------- */

:root {
  color-scheme: dark;
  --bg-deep: #0A1F44;
  --bg-panel: #102A54;
  --bg-card: #143063;
  --accent: #FF6B35;
  --accent-soft: rgba(255,107,53,0.14);
  --green: #00E676;
  --red: #FF3355;
  --white: #FFFFFF;
  --dim: #B8C7E0;
  --muted: #7A8DB0;
  --border: #2A3A5E;
  --border-strong: #3A4E7A;
  --font-display: Impact, 'Arial Black', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-data: 'Roboto Mono', 'Consolas', monospace;
  --header-w: 280px;
  --z-header: 100;
  --radius: 8px;
  --shadow-card: 0 6px 24px rgba(0,0,0,0.28);
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--white);
  background-color: var(--bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  margin: 0;
}

p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 0;
}

::selection { background: var(--accent); color: var(--bg-deep); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
#main-content { scroll-margin-top: 80px; }

/* ---------- Skip Link ---------- */

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 300;
  background: var(--accent);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 0.875rem;
  padding: 10px 18px;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
  transition: top 200ms ease;
}
.skip-link:focus { top: 0; }

/* ---------- 阅读进度条 ---------- */

.progress-track {
  position: fixed;
  top: 0;
  left: var(--header-w);
  right: 0;
  height: 3px;
  z-index: 260;
  pointer-events: none;
  background: rgba(255,255,255,0.06);
}
.progress-bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, #FF9440 100%);
  box-shadow: 0 0 8px rgba(255,107,53,0.5);
}

/* ---------- 头部：左侧轨道 / 移动顶部条 ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--header-w);
  z-index: var(--z-header);
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(160% 60% at 0% 0%, rgba(255,107,53,0.08) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg-panel) 0%, #0C2650 100%);
  border-right: 1px solid var(--border-strong);
}

.brand-rail {
  position: relative;
  padding: 28px 24px 20px;
  border-bottom: 1px solid var(--border);
}
.brand-rail::after {
  content: "";
  display: block;
  height: 3px;
  margin-top: 14px;
  background: repeating-linear-gradient(-45deg, var(--accent) 0 8px, transparent 8px 16px);
  opacity: 0.65;
}
.brand-logo {
  display: inline-flex;
  flex-direction: column;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.9rem;
  letter-spacing: 3px;
  line-height: 1;
  color: var(--white);
}
.brand-name em { color: var(--accent); font-style: normal; }
.brand-sub {
  margin-top: 6px;
  font-family: var(--font-data);
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

/* 导航 */
.site-nav {
  flex: 1;
  overflow-y: auto;
  padding: 20px 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.site-nav::-webkit-scrollbar { width: 6px; }
.site-nav::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 3px; }
.nav-caption {
  display: block;
  padding: 0 14px 10px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--muted);
}
.nav-list { display: flex; flex-direction: column; gap: 4px; }
.nav-item { margin: 0; }
.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 6px;
  border-left: 3px solid transparent;
  color: var(--dim);
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}
.nav-link::before {
  content: attr(data-index);
  font-family: var(--font-data);
  font-size: 0.7rem;
  line-height: 1;
  color: var(--muted);
  width: 22px;
  flex-shrink: 0;
  text-align: right;
}
.nav-text { display: inline-block; }
.nav-link:hover { background: var(--bg-card); color: var(--white); }
.nav-link:hover::before { color: var(--accent); }
.nav-link[aria-current="page"] {
  background: var(--accent-soft);
  border-left-color: var(--accent);
  color: var(--accent);
}
.nav-link[aria-current="page"]::before { color: var(--accent); }

/* 侧栏状态区 */
.header-status {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.status-row { display: flex; align-items: center; gap: 8px; }
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(0,230,118,0.8);
  animation: statusPulse 2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}
.status-text {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 2px;
  color: var(--dim);
}
.status-metrics {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.metric-item { display: flex; flex-direction: column; gap: 3px; }
.metric-label {
  font-family: var(--font-data);
  font-size: 0.62rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}
.metric-value {
  font-family: var(--font-data);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}
.metric-value.up { color: var(--green); }
.metric-value.hot { color: var(--accent); }

/* 移动端按钮与遮罩（桌面隐藏） */
.nav-toggle { display: none; }
.nav-backdrop { display: none; }

/* ---------- 主内容 ---------- */

.page-main {
  margin-left: var(--header-w);
  min-height: 60vh;
  background:
    radial-gradient(900px 300px at 85% -80px, rgba(255,107,53,0.07) 0%, transparent 65%),
    linear-gradient(180deg, #0B2350 0%, var(--bg-deep) 260px);
}
.page-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 44px 32px 80px;
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: transform 200ms ease, box-shadow 200ms ease, background-color 200ms ease, border-color 200ms ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 4px 16px rgba(255,107,53,0.25);
}
.btn-primary:hover {
  background: #FF8150;
  box-shadow: 0 6px 22px rgba(255,107,53,0.4);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--white);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 卡片 ---------- */

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

/* ---------- 区块标题 ---------- */

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 24px;
}
.section-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  color: var(--white);
}
.title-accent { color: var(--accent); }
.section-meta {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 0 20px;
  font-size: 0.85rem;
  color: var(--dim);
}
.breadcrumb a { color: var(--dim); transition: color 200ms ease; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: var(--muted); padding: 0 2px; }
.breadcrumb [aria-current="page"] { color: var(--white); font-weight: 600; }

/* ---------- 栅格 ---------- */

.grid { display: grid; gap: 20px; }
.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)); }

/* ---------- 数据 ---------- */

.data-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.data-value {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
}
.data-value.up { color: var(--green); }
.data-value.down { color: var(--red); }
.data-label { font-size: 0.8rem; color: var(--dim); }

.data-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-family: var(--font-data);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.4;
}
.data-badge-live {
  background: rgba(255,51,85,0.14);
  color: var(--red);
  border: 1px solid rgba(255,51,85,0.35);
}
.data-badge-green {
  background: rgba(0,230,118,0.12);
  color: var(--green);
  border: 1px solid rgba(0,230,118,0.3);
}
.data-badge-accent {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(255,107,53,0.4);
}

/* ---------- 装饰 ---------- */

.pitch-line {
  height: 2px;
  border: 0;
  background: repeating-linear-gradient(90deg, var(--border-strong) 0 10px, transparent 10px 20px);
}
.field-stripes {
  height: 28px;
  background: repeating-linear-gradient(-45deg, rgba(255,107,53,0.06) 0 14px, transparent 14px 28px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ---------- 图片占位 ---------- */

.img-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(80% 60% at 70% 20%, rgba(255,107,53,0.12) 0%, transparent 60%),
    linear-gradient(135deg, var(--bg-panel) 0%, var(--bg-deep) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.img-frame::before {
  content: "FIG";
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 4px;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  padding: 6px 12px;
  border-radius: 4px;
}
.img-frame::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, transparent 49%, var(--accent) 50%);
  opacity: 0.8;
}
.img-frame.ratio-4-3 { aspect-ratio: 4 / 3; }
.img-frame.ratio-square { aspect-ratio: 1 / 1; }

/* ---------- 页脚 ---------- */

.site-footer {
  margin-left: var(--header-w);
  background: linear-gradient(180deg, var(--bg-panel) 0%, #0C2650 100%);
  border-top: 1px solid var(--border-strong);
}
.footer-stripe {
  height: 4px;
  background: repeating-linear-gradient(-45deg, var(--accent) 0 8px, rgba(0,230,118,0.25) 8px 16px, transparent 16px 24px);
  opacity: 0.7;
}
.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 52px 32px 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}
.footer-brand { min-width: 0; }
.footer-brand-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 2px;
  line-height: 1;
  color: var(--white);
}
.footer-brand-logo em { color: var(--accent); font-style: normal; }
.footer-desc {
  margin-top: 14px;
  color: var(--dim);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 400px;
}
.footer-trust {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}
.footer-col { min-width: 0; }
.footer-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  font-family: var(--font-data);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
}
.footer-heading::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--border-strong);
  flex-shrink: 0;
}
.footer-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-link {
  display: inline-block;
  color: var(--dim);
  font-size: 0.9rem;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 200ms ease, border-bottom-color 200ms ease;
}
.footer-link:hover {
  color: var(--white);
  border-bottom-color: var(--accent);
}
.footer-contact-list .contact-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-label {
  font-family: var(--font-data);
  font-size: 0.65rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-value {
  color: var(--dim);
  font-size: 0.875rem;
  line-height: 1.5;
  word-break: break-all;
}
.footer-meta {
  border-top: 1px solid var(--border);
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-brand { grid-column: 1 / -1; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {
  .progress-track { left: 0; }

  .site-header {
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: auto;
    height: 64px;
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
    background: linear-gradient(180deg, var(--bg-panel) 0%, #0E2549 100%);
    border-right: 0;
    border-bottom: 1px solid var(--border-strong);
  }

  .brand-rail {
    padding: 0;
    border-bottom: 0;
  }
  .brand-rail::after { display: none; }
  .brand-name { font-size: 1.35rem; letter-spacing: 2px; }
  .brand-sub { display: none; }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-left: auto;
    position: relative;
    z-index: 3;
    width: 48px;
    height: 48px;
    padding: 6px;
    border-radius: 4px;
    color: var(--white);
  }
  .nav-toggle:hover { background: rgba(255,255,255,0.05); }
  .nav-toggle-bar {
    width: 22px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform 220ms ease, opacity 220ms ease;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .nav-toggle-label { font-size: 0.6rem; color: var(--dim); }

  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 85vw);
    z-index: 2;
    padding: 92px 20px 32px;
    background: linear-gradient(180deg, var(--bg-panel) 0%, #0C2650 100%);
    border-right: 1px solid var(--border-strong);
    box-shadow: 8px 0 32px rgba(0,0,0,0.5);
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 280ms ease, visibility 0s linear 280ms;
    overflow-y: auto;
  }
  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
    transition: transform 280ms ease, visibility 0s;
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    background: rgba(0,0,0,0.65);
    opacity: 0;
    visibility: hidden;
    transition: opacity 240ms ease, visibility 0s linear 240ms;
  }
  .nav-backdrop[data-open] {
    opacity: 1;
    visibility: visible;
    transition: opacity 240ms ease, visibility 0s;
  }

  .header-status { display: none; }
  .nav-caption { padding-left: 14px; }

  .page-main {
    margin-left: 0;
    padding-top: 64px;
  }
  .page-container { padding: 32px 18px 64px; }

  .site-footer { margin-left: 0; }
  .footer-inner { padding: 40px 18px 24px; }
  .footer-meta { padding: 14px 18px; }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand { grid-column: auto; }
  .footer-meta { flex-direction: column; align-items: center; text-align: center; }
  .section-title { font-size: 1.75rem; }
}

@media (max-width: 480px) {
  .brand-name { font-size: 1.15rem; }
  .nav-toggle { width: 44px; height: 44px; }
  .section-title { font-size: 1.5rem; }
  .footer-inner { padding: 32px 14px 20px; }
  .footer-meta { font-size: 0.65rem; }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}