/* ==========================================================================
   6688看台 · 共享样式表 /assets/site.css
   夜场看台的热烈 × 数据仪表盘的冷静
   ========================================================================== */

:root {
  --arena-night: #080C12;
  --deep-indigo: #141B33;
  --deep-teal: #0B3B34;
  --wine-stand: #4A1524;
  --neon-green: #A8FF3E;
  --ember-orange: #FF6A1F;
  --electric-blue: #3BC9FF;
  --cool-white: #F4F7FB;
  --slate-line: #2A3542;
  --amber-signal: #FFC24B;

  --ink-dim: rgba(244, 247, 251, .62);
  --ink-faint: rgba(244, 247, 251, .38);

  --shell-max: 1280px;
  --gutter: clamp(16px, 4vw, 40px);

  --radius-s: 4px;
  --radius-m: 10px;
  --radius-pill: 999px;

  --ease: cubic-bezier(.2, .75, .25, 1);

  --font-head: "Oswald", "Arial Narrow", "Noto Sans SC", "Source Han Sans SC",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC",
    "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas,
    "Liberation Mono", Menlo, monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--cool-white);
  background-color: var(--arena-night);
  background-image:
    radial-gradient(1100px 620px at 78% -10%, rgba(59, 201, 255, .11), transparent 62%),
    radial-gradient(900px 520px at 6% 2%, rgba(168, 255, 62, .09), transparent 60%),
    radial-gradient(760px 460px at 52% 112%, rgba(255, 106, 31, .07), transparent 60%);
  background-attachment: fixed;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: .01em;
  margin: 0 0 .6em;
  color: var(--cool-white);
}

h1 { font-size: clamp(2.1rem, 5.4vw, 3.6rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2.1vw, 1.5rem); }

p { margin: 0 0 1em; }

ul, ol { margin: 0 0 1em; padding-left: 1.25em; }

img { max-width: 100%; height: auto; display: block; }

button { font: inherit; color: inherit; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .18s var(--ease);
}

a:hover,
a:focus-visible {
  color: var(--neon-green);
  text-decoration: underline;
  text-decoration-color: var(--neon-green);
  text-underline-offset: 4px;
}

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

::selection {
  background: var(--neon-green);
  color: var(--arena-night);
}

/* --------------------------------------------------------------------------
   跳转链接
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -80px;
  z-index: 400;
  padding: 11px 18px;
  background: var(--neon-green);
  color: var(--arena-night);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  border-radius: 0 0 var(--radius-m) var(--radius-m);
  transition: top .18s var(--ease);
}

.skip-link:focus {
  top: 0;
  color: var(--arena-night);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   滚动进度条（JS 注入）
   -------------------------------------------------------------------------- */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--neon-green), var(--electric-blue) 55%, var(--ember-orange));
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   顶部：比分条
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
}

.score-ticker {
  position: relative;
  background:
    linear-gradient(90deg,
      rgba(11, 59, 52, .97) 0%,
      rgba(20, 27, 51, .96) 55%,
      rgba(74, 21, 36, .92) 100%);
  border-bottom: 1px solid var(--slate-line);
  overflow: hidden;
}

.score-ticker::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--neon-green);
  z-index: 3;
}

.score-ticker__viewport {
  position: relative;
  overflow: hidden;
  padding-left: 4px;
}

.score-ticker__viewport::before,
.score-ticker__viewport::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 52px;
  z-index: 2;
  pointer-events: none;
}

.score-ticker__viewport::before {
  left: 4px;
  background: linear-gradient(90deg, rgba(11, 59, 52, .96), rgba(11, 59, 52, 0));
}

.score-ticker__viewport::after {
  right: 0;
  background: linear-gradient(270deg, rgba(74, 21, 36, .92), rgba(74, 21, 36, 0));
}

.score-ticker__track {
  display: flex;
  align-items: center;
  width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
  animation: ticker-run 52s linear infinite;
}

.score-ticker:hover .score-ticker__track,
.score-ticker:focus-within .score-ticker__track {
  animation-play-state: paused;
}

.score-ticker__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-dim);
}

.score-ticker__item::after {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-left: 18px;
  border-radius: 50%;
  background: var(--ember-orange);
}

.score-ticker__meta {
  color: var(--ink-dim);
}

.score-ticker__time {
  font-size: 15px;
  font-weight: 700;
  color: var(--cool-white);
  font-variant-numeric: tabular-nums;
}

.score-ticker__tag {
  padding: 2px 8px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--neon-green);
}

.score-ticker__tag--amber {
  color: var(--amber-signal);
}

@keyframes ticker-run {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* --------------------------------------------------------------------------
   顶部：主导航条（左右分置）
   -------------------------------------------------------------------------- */
.header-bar {
  background: rgba(8, 12, 18, .94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--slate-line);
}

.header-bar__inner {
  display: grid;
  grid-template-columns: minmax(178px, 3fr) minmax(0, 6fr) auto;
  grid-template-areas: "brand nav cta";
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 13px var(--gutter);
}

/* 品牌块 */
.brand-block {
  grid-area: brand;
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.brand-block__link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none;
}

.brand-block__link:hover,
.brand-block__link:focus-visible {
  text-decoration: none;
}

.brand-block__mark {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 2.15vw, 27px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cool-white);
  transition: color .18s var(--ease);
}

.brand-block__link:hover .brand-block__mark,
.brand-block__link:focus-visible .brand-block__mark {
  color: var(--neon-green);
}

.brand-block__num {
  color: var(--neon-green);
}

.brand-block__tagline {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .3em;
  color: var(--neon-green);
}

.brand-block__meta {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .05em;
  color: var(--ink-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 导航 */
.site-nav {
  grid-area: nav;
  min-width: 0;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 2px clamp(4px, 1vw, 12px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 4px 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: clamp(15px, 1.25vw, 19px);
  letter-spacing: .02em;
  color: rgba(244, 247, 251, .82);
  white-space: nowrap;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 4px;
  width: 0;
  height: 3px;
  background: var(--ember-orange);
  transform: skewX(-14deg);
  transition: width .18s var(--ease), background-color .18s var(--ease);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--cool-white);
  text-decoration: none;
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after {
  width: 62%;
  background: var(--ember-orange);
}

.site-nav__link[aria-current="page"] {
  color: var(--neon-green);
}

.site-nav__link[aria-current="page"]::after {
  width: 100%;
  background: var(--neon-green);
}

/* 页头 CTA */
.header-cta {
  grid-area: cta;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border: 1px solid var(--neon-green);
  border-radius: var(--radius-s);
  color: var(--neon-green);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  white-space: nowrap;
  transition: background-color .18s var(--ease), color .18s var(--ease);
}

.header-cta::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ember-orange);
  transition: background-color .18s var(--ease);
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--neon-green);
  color: var(--arena-night);
  text-decoration: none;
}

.header-cta:hover::before,
.header-cta:focus-visible::before {
  background: var(--arena-night);
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  grid-area: toggle;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  background: transparent;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-s);
  color: var(--cool-white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--neon-green);
  color: var(--neon-green);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: currentColor;
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform .18s var(--ease), opacity .18s var(--ease);
}

.nav-toggle__bars::before { top: -5px; }
.nav-toggle__bars::after  { top: 5px; }

.site-header[data-open="true"] .nav-toggle__bars { background: transparent; }
.site-header[data-open="true"] .nav-toggle__bars::before { transform: translateY(5px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle__bars::after  { transform: translateY(-5px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   通用容器 / 分区
   -------------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.shell--narrow {
  max-width: 860px;
}

.section {
  padding: clamp(40px, 6vw, 84px) 0;
}

.section--tight {
  padding: clamp(22px, 3vw, 40px) 0;
}

.zone {
  position: relative;
  border-top: 1px solid rgba(42, 53, 66, .55);
  border-bottom: 1px solid rgba(42, 53, 66, .55);
}

.zone--indigo {
  background: linear-gradient(180deg, rgba(20, 27, 51, .94), rgba(20, 27, 51, .5));
}

.zone--teal {
  background: linear-gradient(180deg, rgba(11, 59, 52, .86), rgba(8, 12, 18, .55));
}

.zone--wine {
  background: linear-gradient(180deg, rgba(74, 21, 36, .72), rgba(8, 12, 18, .5));
}

.section-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  padding-bottom: 18px;
  margin-bottom: clamp(20px, 3vw, 36px);
  border-bottom: 1px solid var(--slate-line);
}

.section-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 96px;
  height: 3px;
  background: var(--neon-green);
  transform: skewX(-14deg);
}

.section-head__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 40px);
}

.section-head__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ink-faint);
}

.eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--ember-orange);
}

.plate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border: 1px solid rgba(168, 255, 62, .34);
  border-radius: 2px;
  background: rgba(11, 59, 52, .55);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--neon-green);
}

.note {
  margin: 0 0 1em;
  padding: 14px 16px;
  border-left: 3px solid var(--electric-blue);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: rgba(20, 27, 51, .55);
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.7;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* --------------------------------------------------------------------------
   栅格
   -------------------------------------------------------------------------- */
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

.span-3  { grid-column: span 3; }
.span-4  { grid-column: span 4; }
.span-5  { grid-column: span 5; }
.span-6  { grid-column: span 6; }
.span-7  { grid-column: span 7; }
.span-8  { grid-column: span 8; }
.span-9  { grid-column: span 9; }
.span-10 { grid-column: span 10; }
.span-11 { grid-column: span 11; }
.span-12 { grid-column: span 12; }

/* --------------------------------------------------------------------------
   卡片 / 数据
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: linear-gradient(160deg, rgba(20, 27, 51, .96), rgba(9, 15, 23, .9));
  transition: transform .18s var(--ease), border-color .18s var(--ease),
    box-shadow .18s var(--ease);
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  border-color: var(--neon-green);
  box-shadow: 0 16px 38px rgba(0, 0, 0, .48);
}

.card--skew {
  transform: skewY(-1.4deg);
  border-radius: var(--radius-s);
}

.card--skew:hover,
.card--skew:focus-within {
  transform: skewY(-1.4deg) translateY(-4px);
}

.stat-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(42, 53, 66, .75);
}

.stat-row__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--cool-white);
}

.stat-row__label {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-dim);
}

.data-bar {
  height: 8px;
  border-radius: var(--radius-pill);
  background: rgba(42, 53, 66, .8);
  overflow: hidden;
}

.data-bar__fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--neon-green), var(--electric-blue));
  transition: width .24s var(--ease);
}

/* --------------------------------------------------------------------------
   标签 / 按钮 / 筛选
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--electric-blue);
}

.tag--live  { color: var(--neon-green); }
.tag--amber { color: var(--amber-signal); }
.tag--score { color: var(--ember-orange); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-s);
  background: transparent;
  color: var(--cool-white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: transform .18s var(--ease), border-color .18s var(--ease),
    background-color .18s var(--ease), color .18s var(--ease);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  border-color: var(--neon-green);
  color: var(--neon-green);
  text-decoration: none;
}

.btn--solid {
  background: var(--neon-green);
  border-color: var(--neon-green);
  color: var(--arena-night);
  font-weight: 700;
}

.btn--solid:hover,
.btn--solid:focus-visible {
  background: var(--ember-orange);
  border-color: var(--ember-orange);
  color: var(--arena-night);
}

.btn--ghost {
  border-color: var(--neon-green);
  color: var(--neon-green);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-pill);
  background: rgba(20, 27, 51, .62);
  color: rgba(244, 247, 251, .8);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: border-color .18s var(--ease), background-color .18s var(--ease),
    color .18s var(--ease);
}

.chip:hover,
.chip:focus-visible {
  border-color: var(--electric-blue);
  color: var(--cool-white);
}

.chip[aria-pressed="true"] {
  background: var(--neon-green);
  border-color: var(--neon-green);
  color: var(--arena-night);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   面包屑 / 正文
   -------------------------------------------------------------------------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-faint);
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  color: var(--ember-orange);
}

.breadcrumbs a {
  color: var(--ink-dim);
}

.prose {
  max-width: 74ch;
  font-size: 17.5px;
  line-height: 1.78;
  color: rgba(244, 247, 251, .86);
}

.prose p { margin: 0 0 1.05em; }

.prose h2 {
  margin: 1.9em 0 .6em;
  font-size: clamp(22px, 2.6vw, 30px);
}

.prose h3 {
  margin: 1.6em 0 .5em;
  font-size: clamp(18px, 2vw, 22px);
}

.prose ul,
.prose ol { margin: 0 0 1.1em; }

.prose li { margin: .4em 0; }

.prose strong { color: var(--cool-white); }

.prose a {
  color: var(--neon-green);
  text-decoration: underline;
  text-decoration-color: rgba(168, 255, 62, .4);
}

/* --------------------------------------------------------------------------
   左侧索引导轨（说明牌）
   -------------------------------------------------------------------------- */
.index-rail {
  position: sticky;
  top: 156px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-self: start;
}

.index-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid var(--slate-line);
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.5;
  transition: border-color .18s var(--ease), color .18s var(--ease),
    background-color .18s var(--ease);
}

.index-rail__link:hover,
.index-rail__link:focus-visible {
  border-left-color: var(--electric-blue);
  color: var(--cool-white);
  text-decoration: none;
}

.index-rail__link.is-active,
.index-rail__link[aria-current="true"] {
  border-left-color: var(--neon-green);
  background: rgba(168, 255, 62, .06);
  color: var(--neon-green);
  text-decoration: none;
}

.index-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ember-orange);
}

.index-rail__link.is-active .index-rail__num,
.index-rail__link[aria-current="true"] .index-rail__num {
  color: var(--neon-green);
}

/* --------------------------------------------------------------------------
   图片容器（页面阶段放图用）
   -------------------------------------------------------------------------- */
.media-frame {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--slate-line);
  border-radius: var(--radius-m);
  background: linear-gradient(140deg, var(--deep-indigo), var(--deep-teal) 70%, var(--wine-stand));
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 82% at 78% 0%, rgba(255, 106, 31, .24), transparent 62%),
    linear-gradient(180deg, rgba(8, 12, 18, 0) 42%, rgba(8, 12, 18, .74));
}

.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x5  { aspect-ratio: 4 / 5; }
.media-frame--1x1  { aspect-ratio: 1 / 1; }

.media-frame--skew {
  transform: skewY(-1.8deg);
  border-radius: var(--radius-s);
}

.media-frame__caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 2;
  padding: 5px 10px;
  border-left: 3px solid var(--ember-orange);
  background: rgba(8, 12, 18, .74);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--cool-white);
}

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--slate-line);
  background: linear-gradient(180deg, rgba(20, 27, 51, .96), rgba(8, 12, 18, .99));
}

.footer-spectrum {
  height: 12px;
  border-bottom: 1px solid rgba(42, 53, 66, .6);
  background-image:
    repeating-linear-gradient(90deg, rgba(168, 255, 62, .5) 0 3px, rgba(168, 255, 62, 0) 3px 18px),
    linear-gradient(90deg, rgba(74, 21, 36, .9), rgba(11, 59, 52, .62) 58%, rgba(20, 27, 51, .95));
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 4fr) minmax(0, 8fr);
  gap: clamp(28px, 4vw, 64px);
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(34px, 5vw, 62px) var(--gutter) clamp(22px, 3vw, 36px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand__mark {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--cool-white);
}

.footer-brand__tagline {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .34em;
  color: var(--neon-green);
}

.footer-brand__note {
  max-width: 34ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--ink-dim);
}

.footer-brand__badge {
  align-self: flex-start;
  margin: 0;
  padding: 4px 10px;
  border: 1px solid rgba(255, 194, 75, .42);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber-signal);
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 36px);
  align-content: start;
}

.footer-col__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ember-orange);
}

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

.footer-link {
  display: inline-block;
  font-size: 15px;
  color: rgba(244, 247, 251, .78);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--neon-green);
  border-bottom-color: var(--neon-green);
  text-decoration: none;
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 32px;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 20px var(--gutter) 36px;
  border-top: 1px solid var(--slate-line);
  font-size: 13px;
  color: var(--ink-faint);
}

.footer-base__line {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
}

.footer-base__line--region {
  color: var(--ink-dim);
}

.footer-base__value {
  color: var(--cool-white);
  font-variant-numeric: tabular-nums;
}

.footer-base__closing {
  flex: 1 1 100%;
  margin: 6px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(74, 21, 36, .9);
  font-size: 13.5px;
  letter-spacing: .06em;
  color: rgba(168, 255, 62, .72);
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
  html { scroll-padding-top: 120px; }

  .header-bar__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px var(--gutter) 14px;
  }

  .brand-block {
    flex: 1 1 auto;
    min-width: 0;
  }

  .brand-block__meta {
    white-space: normal;
  }

  .nav-toggle {
    display: inline-flex;
    order: 2;
    flex: none;
  }

  .site-nav {
    display: none;
    order: 3;
    flex: 1 1 100%;
    max-height: min(70vh, 520px);
    overflow-y: auto;
    overflow-x: hidden;
  }

  .site-nav[data-open="true"] {
    display: block;
    animation: nav-unfold .2s var(--ease) both;
  }

  @keyframes nav-unfold {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding-top: 6px;
    border-top: 1px solid var(--slate-line);
  }

  .site-nav__list li {
    border-bottom: 1px solid rgba(42, 53, 66, .6);
  }

  .site-nav__link {
    display: block;
    padding: 14px 6px;
    font-size: 17px;
  }

  .site-nav__link::after { bottom: 8px; }

  .header-cta {
    display: none;
    order: 4;
    flex: 1 1 100%;
    justify-content: center;
    margin-top: 4px;
  }

  .site-header[data-open="true"] .header-cta {
    display: inline-flex;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-base {
    justify-content: flex-start;
  }

  .index-rail {
    position: static;
    top: auto;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 22px;
  }

  .index-rail__link {
    border-left: 0;
    border-bottom: 2px solid var(--slate-line);
    padding: 8px 12px;
  }

  .index-rail__link:hover,
  .index-rail__link:focus-visible {
    border-bottom-color: var(--electric-blue);
  }

  .index-rail__link.is-active,
  .index-rail__link[aria-current="true"] {
    border-bottom-color: var(--neon-green);
  }

  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8 {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .score-ticker__item {
    padding: 8px 12px;
    font-size: 12px;
  }

  .footer-columns {
    grid-template-columns: 1fr;
  }

  .grid-12 > [class^="span-"] {
    grid-column: span 12;
  }

  .card--skew,
  .media-frame--skew {
    transform: none;
  }

  .card--skew:hover,
  .card--skew:focus-within {
    transform: translateY(-4px);
  }
}

/* --------------------------------------------------------------------------
   降低动效
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .score-ticker__track {
    animation: none;
    transform: none;
  }

  .score-ticker__viewport {
    overflow-x: auto;
  }

  .card:hover,
  .card:focus-within,
  .card--skew:hover,
  .card--skew:focus-within,
  .btn:hover,
  .btn:focus-visible {
    transform: none;
  }

  .site-nav[data-open="true"] {
    animation: none;
  }
}