/* ==========================================================================
   九游赛场 /assets/site.css
   夜场赛场灯光底 + 冷底热点对抗色 · 共享外壳与通用组件
   ========================================================================== */

/* ---------- 01 变量 ---------- */
:root {
  --ink-0: #070B14;
  --ink-1: #0E1524;
  --ink-2: #0B111D;
  --rock: #2A3138;
  --moss: #3F5A4A;
  --clay: #B4633C;
  --paper: #F2EDE4;
  --lime: #B6FF3C;
  --magenta: #FF3E9A;
  --amber: #FF8A3D;
  --ice: #8FA3BF;

  --line: rgba(242, 237, 228, 0.13);
  --line-strong: rgba(242, 237, 228, 0.26);
  --glass: rgba(7, 11, 20, 0.84);
  --wash: rgba(242, 237, 228, 0.04);

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

  --maxw: 1280px;
  --gutter: clamp(16px, 4vw, 48px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  color-scheme: dark;
}

/* ---------- 02 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--ink-0);
  background-image:
    radial-gradient(1100px 560px at 82% -8%, rgba(182, 255, 60, 0.07), transparent 62%),
    radial-gradient(880px 520px at -12% 18%, rgba(255, 62, 154, 0.065), transparent 60%),
    radial-gradient(760px 460px at 50% 118%, rgba(255, 138, 61, 0.05), transparent 65%);
  background-repeat: no-repeat;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
a { color: inherit; }
[hidden] { display: none !important; }

::selection { background: var(--lime); color: var(--ink-0); }

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -120px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--lime);
  color: var(--ink-0);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top 0.18s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 03 排版基元 ---------- */
h1, .h1 {
  font-size: clamp(38px, 8vw, 96px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.025em;
}
h2, .h2 {
  font-size: clamp(26px, 4.4vw, 52px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.018em;
}
h3, .h3 {
  font-size: clamp(19px, 2.4vw, 27px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.lede {
  max-width: 62ch;
  font-size: clamp(16.5px, 1.8vw, 20px);
  line-height: 1.72;
  color: var(--paper);
}

.note {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice);
}

.mono {
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ice);
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ice);
}
.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--lime);
  flex: none;
}

.score {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 72px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

/* ---------- 04 布局 ---------- */
.container {
  width: min(calc(100% - var(--gutter) * 2), var(--maxw));
  margin-inline: auto;
}

.section { padding-block: clamp(40px, 6vw, 88px); }
.section--tight { padding-block: clamp(26px, 4vw, 54px); }

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--line-strong);
}

.grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 28px);
}
.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)); }
.grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.stack > * + * { margin-top: var(--stack-gap, 16px); }

/* ---------- 05 章节头 ---------- */
.sec-head {
  display: grid;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--line-strong);
}
.sec-head__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--lime);
}
.sec-head__title {
  font-size: clamp(24px, 3.4vw, 44px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.018em;
}
.sec-head__note {
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ice);
}

/* ---------- 06 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
  font-size: 14.5px;
  font-weight: 600;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.16s var(--ease), color 0.16s var(--ease),
    border-color 0.16s var(--ease), transform 0.16s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--lime {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--ink-0);
}
.btn--lime:hover { filter: brightness(1.08); }

.btn--ghost:hover { border-color: var(--lime); color: var(--lime); }
.btn--magenta:hover { border-color: var(--magenta); color: var(--magenta); }
.btn--amber:hover { border-color: var(--amber); color: var(--amber); }

/* ---------- 07 标签 ---------- */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ice);
  white-space: nowrap;
}
.tag--lime { color: var(--lime); border-color: rgba(182, 255, 60, 0.42); }
.tag--magenta { color: var(--magenta); border-color: rgba(255, 62, 154, 0.44); }
.tag--amber { color: var(--amber); border-color: rgba(255, 138, 61, 0.44); }
.tag--clay { color: var(--clay); border-color: rgba(180, 99, 60, 0.5); }

/* ---------- 08 卡片 ---------- */
.card {
  position: relative;
  padding: clamp(16px, 2vw, 26px);
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.16s var(--ease), transform 0.16s var(--ease),
    background-color 0.16s var(--ease);
}
.card--glass {
  background: rgba(14, 21, 36, 0.66);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  backdrop-filter: blur(12px) saturate(1.2);
  border-color: var(--line-strong);
}
.card--lime { border-left: 3px solid var(--lime); }
.card--magenta { border-left: 3px solid var(--magenta); }
.card--amber { border-left: 3px solid var(--amber); }
a.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

/* ---------- 09 赛场时间轴 ---------- */
.rail {
  position: relative;
  padding-left: 28px;
}
.rail::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--lime), rgba(63, 90, 74, 0.9) 70%, transparent);
}
.rail__item {
  position: relative;
  padding-bottom: 24px;
}
.rail__item:last-child { padding-bottom: 0; }
.rail__item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ink-0);
  border: 1px solid var(--lime);
}
.rail__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ice);
  font-variant-numeric: tabular-nums;
}
.rail__title {
  display: block;
  margin-top: 4px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.35;
}
.rail__text {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ice);
}

/* ---------- 10 图片容器 ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--ink-1);
  background-image:
    linear-gradient(135deg, rgba(63, 90, 74, 0.34), rgba(14, 21, 36, 0.92)),
    repeating-linear-gradient(0deg, rgba(242, 237, 228, 0.045) 0 1px, transparent 1px 22px);
}
.media-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--classic { aspect-ratio: 4 / 3; }
.media-frame--portrait { aspect-ratio: 3 / 4; }
.media-frame--phone { aspect-ratio: 9 / 19.5; max-width: 320px; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 30px 16px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--paper);
  background: linear-gradient(180deg, transparent, rgba(7, 11, 20, 0.92));
}

/* ---------- 11 面包屑 ---------- */
.crumbs { padding-top: 18px; }
.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ice);
}
.crumbs__link {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.14s var(--ease), border-color 0.14s var(--ease);
}
.crumbs__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.crumbs__sep { color: var(--moss); }
.crumbs__current { color: var(--paper); }

/* ---------- 12 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  backdrop-filter: blur(16px) saturate(1.3);
  border-bottom: 1px solid var(--line-strong);
}

.hdr-strap {
  background: rgba(14, 21, 36, 0.62);
  border-bottom: 1px solid var(--line);
}
.hdr-strap__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 9px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--paper);
  min-width: 0;
}
.brand__mark {
  flex: none;
  padding: 4px 7px 3px;
  background: var(--lime);
  color: var(--ink-0);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  border-radius: var(--radius);
}
.brand__word {
  font-size: 17px;
  font-weight: 900;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand__tag {
  padding-left: 10px;
  border-left: 1px solid var(--line-strong);
  color: var(--ice);
  font-size: 12.5px;
  white-space: nowrap;
}

.hdr-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}
.hdr-cta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}
.hdr-cta:hover { border-bottom-color: var(--lime); }

.verdict {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}
.verdict__label {
  padding: 0 9px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--ice);
}
.verdict__btn {
  appearance: none;
  padding: 6px 11px;
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--ice);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: background-color 0.14s var(--ease), color 0.14s var(--ease);
}
.verdict__btn:hover { color: var(--paper); background: var(--wash); }
.verdict__btn[aria-pressed="true"] {
  background: var(--lime);
  color: var(--ink-0);
}

.hdr-main { position: relative; }
.hdr-main__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 10px 12px;
}

.cmdnav { min-width: 0; }
.cmdnav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 2px;
}
.cmdnav__item { display: flex; }
.cmdnav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--ice);
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.14s var(--ease), border-color 0.14s var(--ease),
    background-color 0.14s var(--ease);
}
.cmdnav__link:hover {
  color: var(--paper);
  border-color: var(--rock);
  background: var(--wash);
}
.cmdnav__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: rgba(143, 163, 191, 0.6);
  font-variant-numeric: tabular-nums;
}
.cmdnav__link[aria-current="page"] { color: var(--paper); }
.cmdnav__link[aria-current="page"] .cmdnav__idx { color: var(--lime); }
.cmdnav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 3px;
  height: 2px;
  background: var(--lime);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  cursor: pointer;
  flex: none;
  transition: border-color 0.14s var(--ease), color 0.14s var(--ease);
}
.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }
.nav-toggle__bars {
  position: relative;
  display: inline-block;
  width: 16px;
  height: 10px;
  flex: none;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.16s var(--ease);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars::after { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before {
  transform: translateY(4.25px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after {
  transform: translateY(-4.25px) rotate(-45deg);
}

.hdr-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  overflow: hidden;
}
.hdr-meter__fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lime);
  transition: width 0.1s linear;
}

/* 旧版平行视图：冷色退让，洋红接管状态色，索引换行排布 */
html[data-nav-version="legacy"] .brand__mark { background: var(--magenta); }
html[data-nav-version="legacy"] .hdr-cta { color: var(--magenta); }
html[data-nav-version="legacy"] .hdr-cta:hover { border-bottom-color: var(--magenta); }
html[data-nav-version="legacy"] .hdr-meter__fill { background: var(--magenta); }
html[data-nav-version="legacy"] .verdict__btn[aria-pressed="true"] {
  background: var(--magenta);
  color: var(--ink-0);
}
html[data-nav-version="legacy"] .cmdnav__list { gap: 0; }
html[data-nav-version="legacy"] .cmdnav__link {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 6px 13px 8px;
}
html[data-nav-version="legacy"] .cmdnav__link[aria-current="page"]::after {
  left: 0;
  right: auto;
  top: 6px;
  bottom: 8px;
  width: 2px;
  height: auto;
  background: var(--magenta);
}
html[data-nav-version="legacy"] .cmdnav__link[aria-current="page"] .cmdnav__idx { color: var(--magenta); }

/* ---------- 13 页脚 ---------- */
.site-footer {
  margin-top: clamp(56px, 9vw, 120px);
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(14, 21, 36, 0.92) 0%, #050810 78%);
}

.ftr-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: clamp(24px, 3.5vw, 56px);
  padding: clamp(38px, 5vw, 72px) 0 clamp(26px, 3vw, 44px);
}

.ftr-brand__mark {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--lime);
}
.ftr-brand__name {
  margin-top: 10px;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.ftr-brand__tag {
  margin-top: 3px;
  font-size: 13px;
  font-weight: 700;
  color: var(--clay);
}
.ftr-brand__note {
  margin-top: 14px;
  max-width: 36ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ice);
}

.ftr-col {
  padding-top: 15px;
  border-top: 1px solid var(--line);
}
.ftr-col__title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ice);
}
.ftr-list {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}
.ftr-list a {
  display: inline-block;
  font-size: 14px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.14s var(--ease), border-color 0.14s var(--ease);
}
.ftr-list a:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}
.ftr-list--plain li {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ice);
  word-break: break-word;
}

.ftr-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 26px;
  padding: 16px 0 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ice);
}
.ftr-bar__item { font-variant-numeric: tabular-nums; }
.ftr-bar__icp { color: var(--paper); }
.ftr-bar__year { margin-left: auto; }

/* ---------- 14 响应式 ---------- */
@media (max-width: 1024px) {
  .ftr-top { grid-template-columns: 1fr 1fr; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .nav-toggle { display: inline-flex; }

  .cmdnav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: min(72vh, 520px);
    overflow-y: auto;
    padding: 8px var(--gutter) 18px;
    background: var(--ink-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.55);
  }
  .cmdnav[data-open] { display: block; }
  .cmdnav__list { flex-direction: column; gap: 0; }
  .cmdnav__item { width: 100%; }
  .cmdnav__link {
    width: 100%;
    justify-content: flex-start;
    padding: 14px 4px;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 16px;
    white-space: normal;
  }
  .cmdnav__link:hover { background: transparent; border-bottom-color: var(--line); }
  .cmdnav__link[aria-current="page"] { padding-left: 16px; }
  .cmdnav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 13px;
    bottom: 13px;
    width: 2px;
    height: auto;
  }
  html[data-nav-version="legacy"] .cmdnav__link {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    padding: 14px 4px;
  }
  html[data-nav-version="legacy"] .cmdnav__link[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: 13px;
    bottom: 13px;
    width: 2px;
    height: auto;
  }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .hdr-cta { display: none; }
  .brand__tag { display: none; }
  .grid--12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .grid--2,
  .grid--3,
  .grid--4,
  .grid--12 { grid-template-columns: minmax(0, 1fr); }
  .ftr-top { grid-template-columns: 1fr; }
  .ftr-bar__year { margin-left: 0; }
  .hdr-main__inner { padding-block: 8px 10px; }
  .verdict__label { display: none; }
}

/* ---------- 15 减弱动态 ---------- */
@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;
    scroll-behavior: auto !important;
  }
  .btn:hover,
  a.card:hover { transform: none; }
}