/* ==========================================================================
   易倍看台 · 共享样式表 /assets/site.css
   暗夜赛场蓝图：技术网格秩序 + 记分牌荧光锚点
   ========================================================================== */

/* --- 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, ul, ol, li, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

/* --- 2. 设计令牌 --- */
:root {
  --c-base: #0A0F14;
  --c-base-soft: #0E161D;
  --c-panel: #111A22;
  --c-raised: #1A2733;
  --c-ink: #F5F8FA;
  --c-mute: #9BB0C1;
  --c-line: #243240;
  --c-green: #B6FF3C;
  --c-orange: #FF7A1A;
  --c-cyan: #4DE1F2;
  --c-alert: #FF4D5E;

  --font-display: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --step--2: 0.6875rem;
  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: clamp(1.6rem, 3vw, 2.4rem);
  --step-2: clamp(2.4rem, 6vw, 4.8rem);

  --header-h: 66px;
  --shell: 1240px;
  --gutter: clamp(16px, 4vw, 40px);

  --r-s: 8px;
  --r-m: 16px;
  --r-l: 26px;
  --r-pill: 999px;

  --dur: 200ms;
  --dur-slow: 520ms;
  --ease: cubic-bezier(0.22, 0.7, 0.28, 1);
  --grid: rgba(36, 50, 64, 0.55);
}

/* --- 3. 基础排版与蓝图底纹 --- */
body {
  min-height: 100vh;
  font-family: var(--font-display);
  font-size: var(--step-0);
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--c-ink);
  background-color: var(--c-base);
  background-image:
    radial-gradient(42rem 30rem at 8% -12%, rgba(182, 255, 60, 0.10), rgba(182, 255, 60, 0) 62%),
    radial-gradient(38rem 28rem at 100% -6%, rgba(255, 122, 26, 0.10), rgba(255, 122, 26, 0) 60%),
    radial-gradient(46rem 34rem at 50% 112%, rgba(77, 225, 242, 0.07), rgba(77, 225, 242, 0) 66%),
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 96px 96px, 96px 96px;
  background-repeat: no-repeat, no-repeat, no-repeat, repeat, repeat;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}
h1 { font-size: var(--step-2); }
h2 { font-size: var(--step-1); }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); font-weight: 800; }
h4 { font-size: 1rem; font-weight: 800; }
p { line-height: 1.85; }

::selection { background: var(--c-green); color: #08110A; }

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

#main-content { display: block; position: relative; }

/* --- 4. 布局原语 --- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: clamp(40px, 7vw, 88px); }
.section--tight { padding-block: clamp(24px, 4vw, 48px); }

.grid { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid--7-5 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); align-items: start; }

.prose { max-width: 74ch; color: var(--c-mute); }
.prose > * + * { margin-top: 1.1em; }
.prose h2, .prose h3 { color: var(--c-ink); margin-top: 1.9em; }
.prose ul li { position: relative; padding-left: 20px; }
.prose ul li + li { margin-top: 0.4em; }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--c-green);
}
.prose strong { color: var(--c-ink); font-weight: 800; }
.prose a { color: var(--c-cyan); text-decoration: underline; text-underline-offset: 3px; }

/* --- 5. 文字语义类 --- */
.display {
  font-size: var(--step-2);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.h-section {
  font-size: var(--step-1);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.lede { color: var(--c-mute); font-size: 1rem; max-width: 62ch; }
.muted { color: var(--c-mute); }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: 0.02em; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; }
.link { color: var(--c-cyan); text-decoration: underline; text-underline-offset: 3px; }

/* --- 6. 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-display);
  font-size: var(--step--1);
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn--primary { background: var(--c-green); color: #08110A; border-color: var(--c-green); }
.btn--primary:hover { background: #CBFF70; }
.btn--ghost { background: rgba(26, 39, 51, 0.72); border-color: var(--c-line); color: var(--c-ink); }
.btn--ghost:hover { border-color: var(--c-cyan); color: var(--c-cyan); }
.btn--accent { background: var(--c-orange); color: #1A0B02; border-color: var(--c-orange); }
.btn--accent:hover { background: #FF9448; }

/* --- 7. 面板 / 卡片 / 标签 --- */
.panel {
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--r-m);
  padding: clamp(16px, 2.4vw, 26px);
}
.panel--raised { background: var(--c-raised); box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35); }
.panel--organic { border-radius: var(--r-l) var(--r-s) var(--r-l) var(--r-s); }
.panel__title {
  font-size: var(--step--1);
  font-family: var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-mute);
  margin-bottom: 12px;
}

.card {
  display: grid;
  gap: 10px;
  align-content: start;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: var(--r-m);
  padding: 18px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.card:hover { border-color: rgba(182, 255, 60, 0.4); transform: translateY(-2px); }
.card__title { font-weight: 800; font-size: 1rem; letter-spacing: -0.01em; }
.card__meta { font-family: var(--font-mono); font-size: var(--step--2); color: var(--c-mute); letter-spacing: 0.08em; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-mute);
  white-space: nowrap;
}
.tag--home { color: var(--c-green); border-color: rgba(182, 255, 60, 0.42); background: rgba(182, 255, 60, 0.08); }
.tag--away { color: var(--c-orange); border-color: rgba(255, 122, 26, 0.42); background: rgba(255, 122, 26, 0.09); }
.tag--info { color: var(--c-cyan); border-color: rgba(77, 225, 242, 0.42); background: rgba(77, 225, 242, 0.08); }
.tag--alert { color: var(--c-alert); border-color: rgba(255, 77, 94, 0.45); background: rgba(255, 77, 94, 0.09); }

/* --- 8. 图片容器基础规则（页面阶段放入 <img>） --- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--c-line);
  border-radius: var(--r-m);
  background-image: linear-gradient(140deg, #16222D 0%, #0E161D 100%);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 4 / 5; }
.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  color: var(--c-ink);
  background-image: linear-gradient(0deg, rgba(10, 15, 20, 0.92), rgba(10, 15, 20, 0));
}

/* --- 9. 面包屑 / 分隔线 / 标签页 --- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 18px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--c-mute);
}
.breadcrumbs a { color: var(--c-mute); }
.breadcrumbs a:hover { color: var(--c-green); }
.breadcrumbs [aria-current="page"] { color: var(--c-ink); }
.crumb-sep { color: var(--c-line); }

.divider { height: 1px; border: 0; background: var(--c-line); margin-block: clamp(20px, 3vw, 36px); }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 22px;
}
.tab {
  padding: 9px 16px;
  border: 1px solid transparent;
  border-bottom: 0;
  border-radius: 10px 10px 0 0;
  font-size: var(--step--1);
  font-weight: 800;
  color: var(--c-mute);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.tab:hover { color: var(--c-ink); background: rgba(255, 255, 255, 0.03); }
.tab[aria-selected="true"] {
  color: var(--c-green);
  background: rgba(182, 255, 60, 0.08);
  border-color: var(--c-line);
  border-bottom-color: transparent;
}

/* --- 10. 头部：紧凑命令栏 --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(10, 15, 20, 0.88);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--c-line);
}

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
  min-height: var(--header-h);
}

.brand { flex: 0 0 auto; }
.brand__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px 6px 0;
  border-radius: var(--r-s);
}
.brand__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border: 1px solid rgba(182, 255, 60, 0.5);
  border-radius: 12px 4px 14px 6px;
  background-image: linear-gradient(150deg, rgba(182, 255, 60, 0.20), rgba(77, 225, 242, 0.07));
  color: var(--c-green);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name { font-size: 1rem; font-weight: 900; letter-spacing: -0.01em; }
.brand__meta {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-mute);
}

.nav { flex: 1 1 auto; min-width: 0; }
.nav__list { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; }
.nav__item { position: relative; }
.nav__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--r-s);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-mute);
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.nav__idx { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.06em; color: #5C7488; }
.nav__link:hover { color: var(--c-ink); background: rgba(255, 255, 255, 0.04); }
.nav__link[aria-current="page"] {
  color: var(--c-green);
  background: rgba(182, 255, 60, 0.08);
  border-color: rgba(182, 255, 60, 0.3);
}
.nav__link[aria-current="page"] .nav__idx { color: var(--c-green); }

.header-rail {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  margin-left: auto;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: rgba(26, 39, 51, 0.72);
  font-size: 0.75rem;
  color: var(--c-mute);
  white-space: nowrap;
}
.status-pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-green);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(182, 255, 60, 0.45); }
  70% { box-shadow: 0 0 0 8px rgba(182, 255, 60, 0); }
  100% { box-shadow: 0 0 0 0 rgba(182, 255, 60, 0); }
}

.seg {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: var(--c-base-soft);
}
.seg__btn {
  padding: 4px 14px;
  border-radius: var(--r-pill);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--c-mute);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.seg__btn[aria-pressed="true"] { background: var(--c-green); color: #08110A; }
.seg[data-side="away"] .seg__btn[aria-pressed="true"] { background: var(--c-orange); color: #1A0B02; }
.seg[data-side="away"] { border-color: rgba(255, 122, 26, 0.35); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 7px 13px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  background: var(--c-base-soft);
  font-size: var(--step--1);
  font-weight: 800;
  color: var(--c-ink);
}
.nav-toggle__bars { display: grid; gap: 4px; width: 16px; }
.nav-toggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--c-green);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background-image: linear-gradient(90deg, var(--c-green), var(--c-cyan), var(--c-orange));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 140ms linear;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 120;
  padding: 10px 18px;
  border-radius: 0 0 var(--r-m) var(--r-m);
  background: var(--c-green);
  color: #08110A;
  font-weight: 800;
  font-size: var(--step--1);
  transition: top var(--dur) var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible { top: 0; outline-offset: -2px; }

/* --- 11. 页脚：档案柜底座 --- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(48px, 8vw, 96px);
  border-top: 1px solid var(--c-line);
  background-image: linear-gradient(180deg, #0C141B 0%, #0A0F14 100%);
}
.site-footer::before {
  content: "";
  position: absolute;
  right: -90px;
  top: -140px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background-image: radial-gradient(circle, rgba(182, 255, 60, 0.10), rgba(182, 255, 60, 0) 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: clamp(22px, 4vw, 48px);
  padding-block: clamp(36px, 6vw, 64px);
}

.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-brand__link { display: inline-flex; align-items: center; gap: 10px; }
.footer-brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(182, 255, 60, 0.5);
  border-radius: 12px 4px 14px 6px;
  background-image: linear-gradient(150deg, rgba(182, 255, 60, 0.20), rgba(255, 122, 26, 0.07));
  color: var(--c-green);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}
.footer-brand__name { font-size: 1.0625rem; font-weight: 900; letter-spacing: -0.01em; }
.footer-brand__meta {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.footer-brand__tag { color: var(--c-mute); font-size: var(--step--1); max-width: 34ch; }
.footer-cta { margin-top: 6px; }

.footer-col__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-green);
}
.footer-col__title::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--c-line);
}
.footer-col__list { display: grid; gap: 9px; }
.footer-col__link {
  display: inline-block;
  font-size: var(--step--1);
  color: var(--c-mute);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.footer-col__link:hover { color: var(--c-ink); transform: translateX(3px); }

.footer-base {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 10px 24px;
  padding-block: 20px 30px;
  border-top: 1px solid var(--c-line);
}
.footer-base__contact { font-size: var(--step--1); color: var(--c-mute); }
.footer-base__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 16px;
  font-size: var(--step--1);
  color: var(--c-mute);
}
.footer-base__copy { font-family: var(--font-mono); letter-spacing: 0.04em; }
.footer-base__icp { font-family: var(--font-mono); color: var(--c-mute); letter-spacing: 0.04em; }

/* --- 12. 工具类与动效协议 --- */
.sr-only {
  position: absolute;
  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;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
html.js [data-reveal].is-visible { opacity: 1; transform: none; }

/* --- 13. 响应式 --- */
@media (max-width: 1180px) {
  .status-pill { display: none; }
  .brand__meta { display: none; }
  .nav__link { font-size: var(--step--1); padding: 8px 8px; }
}

@media (max-width: 1023px) {
  :root { --header-h: 60px; }

  .nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
    padding: 12px var(--gutter) 22px;
    background-image: linear-gradient(180deg, rgba(17, 26, 34, 0.98), rgba(10, 15, 20, 0.99));
    border-bottom: 1px solid var(--c-line);
    box-shadow: 0 26px 48px rgba(0, 0, 0, 0.5);
  }
  .nav[data-open="true"] { display: block; animation: navIn 200ms var(--ease); }
  @keyframes navIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: none; }
  }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__item { border-bottom: 1px solid rgba(36, 50, 64, 0.6); }
  .nav__item:last-child { border-bottom: 0; }
  .nav__link {
    width: 100%;
    padding: 14px 8px;
    font-size: 1rem;
    border: 0;
    border-radius: 0;
    border-left: 2px solid transparent;
  }
  .nav__link[aria-current="page"] {
    background: transparent;
    border-left-color: var(--c-green);
    padding-left: 12px;
  }
  .nav-toggle { display: inline-flex; }
  .grid--7-5,
  .grid--2,
  .grid--3 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-base { grid-template-columns: minmax(0, 1fr); }
  .footer-base__legal { justify-content: flex-start; }
}

@media (max-width: 560px) {
  .header-rail { gap: 8px; }
  .nav-toggle__text { display: none; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .brand__meta { display: none; }
  .media-frame--wide { aspect-ratio: 16 / 9; }
}

/* --- 14. 无障碍：减弱动效 --- */
@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;
  }
  html.js [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress { transition: none; }
}