/* ============================================================
   冠竞赛场 · 共享站点样式 /assets/site.css
   夜赛指挥中心：框架式导航 + Bento 坐标网格 + 珠宝色分区
   ============================================================ */

:root {
  --gj-ink: #0A1420;
  --gj-ink-2: #111E33;
  --gj-ink-3: #16263D;
  --gj-signal: #2EE6D2;
  --gj-track: #FF6A2B;
  --gj-lime: #D8FF3E;
  --gj-wine: #7A2B3E;
  --gj-violet: #3B2E6E;
  --gj-turf: #1F6F5C;
  --gj-paper: #EAF2F6;
  --gj-steel: #8FA3B8;
  --gj-line: #243449;
  --gj-body: #C6D6E2;

  --gj-shell: 1320px;
  --gj-gap: 24px;
  --gj-row: 20px;
  --gj-cut: 6deg;
  --gj-ease: cubic-bezier(.2, .7, .3, 1);

  --gj-font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --gj-font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, "Courier New", monospace;
}

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

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

body {
  margin: 0;
  background: var(--gj-ink);
  color: var(--gj-body);
  font-family: var(--gj-font-sans);
  font-size: 16.5px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

/* 全场坐标网格纹理，低透明度铺底 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(46, 230, 210, .035) 0 1px, transparent 1px 128px),
    repeating-linear-gradient(0deg, rgba(143, 163, 184, .028) 0 1px, transparent 1px 128px);
}

h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; }

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

::selection {
  background: var(--gj-signal);
  color: #04121A;
}

/* ---------- skip link ---------- */
.gj-skip {
  position: fixed;
  left: 14px;
  top: -80px;
  z-index: 300;
  padding: 11px 18px;
  background: var(--gj-signal);
  color: #04121A;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .04em;
  border-radius: 2px;
  transition: top .2s var(--gj-ease);
}
.gj-skip:focus,
.gj-skip:focus-visible {
  top: 14px;
  outline: 2px solid var(--gj-lime);
  outline-offset: 3px;
}

/* ---------- 容器 ---------- */
.gj-shell {
  width: 100%;
  max-width: var(--gj-shell);
  margin: 0 auto;
  padding-inline: clamp(16px, 3.4vw, 32px);
}

.gj-main {
  position: relative;
  z-index: 1;
  display: block;
}

.gj-section { padding-block: clamp(38px, 5.6vw, 84px); }

.gj-breathe { height: clamp(56px, 8vw, 110px); }

/* ============================================================
   头部：框架式导航边框带
   ============================================================ */
.gj-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(10, 20, 32, .95);
  border-bottom: 1px solid var(--gj-line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background .2s var(--gj-ease), border-color .2s var(--gj-ease);
}
.gj-header[data-scrolled="true"] {
  background: rgba(6, 13, 23, .985);
  border-bottom-color: rgba(46, 230, 210, .55);
}

.gj-header__rail {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
  width: 100%;
  max-width: var(--gj-shell);
  min-height: 70px;
  margin: 0 auto;
  padding: 12px clamp(16px, 3.4vw, 32px);
}

/* 品牌 */
.gj-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  padding: 4px 2px;
}
.gj-brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  background: var(--gj-ink-2);
  border: 1px solid var(--gj-signal);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 86% 100%, 0 100%);
  transition: border-color .18s var(--gj-ease), background .18s var(--gj-ease);
}
.gj-brand__mark::before {
  content: "";
  width: 9px;
  height: 9px;
  background: var(--gj-lime);
  box-shadow: 0 0 12px rgba(216, 255, 62, .75);
  transition: transform .18s var(--gj-ease);
}
.gj-brand__mark::after {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  bottom: 6px;
  height: 1px;
  background: var(--gj-signal);
  opacity: .55;
}
.gj-brand:hover .gj-brand__mark { background: #0D2536; border-color: var(--gj-lime); }
.gj-brand:hover .gj-brand__mark::before { transform: scale(1.25); }

.gj-brand__text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1.1;
}
.gj-brand__name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .07em;
  color: var(--gj-paper);
}
.gj-brand__note {
  font-family: var(--gj-font-mono);
  font-size: 10.5px;
  letter-spacing: .26em;
  color: var(--gj-steel);
}

/* 主导航 */
.gj-nav { flex: 1 1 auto; min-width: 0; }

.gj-nav__list {
  display: flex;
  align-items: stretch;
  gap: clamp(2px, 1.1vw, 18px);
}

.gj-nav__link {
  position: relative;
  display: block;
  padding: 10px 2px;
  font-size: 14.8px;
  font-weight: 500;
  letter-spacing: .03em;
  color: var(--gj-paper);
  white-space: nowrap;
  transition: color .18s var(--gj-ease);
}
.gj-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 3px;
  height: 2px;
  background: var(--gj-signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .24s var(--gj-ease);
}
.gj-nav__link:hover,
.gj-nav__link:focus-visible { color: var(--gj-signal); }
.gj-nav__link:hover::after,
.gj-nav__link:focus-visible::after { transform: scaleX(1); }

.gj-nav__link[aria-current="page"] {
  color: var(--gj-signal);
  font-weight: 700;
}
.gj-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  box-shadow: 0 0 10px rgba(46, 230, 210, .65);
}

/* 头部快捷入口 */
.gj-header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.gj-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--gj-paper);
  border: 1px solid var(--gj-line);
  border-radius: 2px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: background .18s var(--gj-ease), color .18s var(--gj-ease), border-color .18s var(--gj-ease);
}
.gj-btn--signal {
  background: var(--gj-signal);
  border-color: var(--gj-signal);
  color: #04121A;
}
.gj-btn--signal:hover,
.gj-btn--signal:focus-visible {
  background: var(--gj-lime);
  border-color: var(--gj-lime);
  color: #0A1420;
}
.gj-btn--ghost { background: transparent; color: var(--gj-paper); }
.gj-btn--ghost::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--gj-track);
  box-shadow: 0 0 8px rgba(255, 106, 43, .85);
}
.gj-btn--ghost:hover,
.gj-btn--ghost:focus-visible {
  border-color: var(--gj-signal);
  color: var(--gj-signal);
  background: rgba(46, 230, 210, .07);
}

/* 移动折叠按钮 */
.gj-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--gj-steel);
  background: var(--gj-ink-2);
  border: 1px solid var(--gj-line);
  border-radius: 2px;
  transition: color .18s var(--gj-ease), border-color .18s var(--gj-ease);
}
.gj-navtoggle:hover { color: var(--gj-signal); border-color: var(--gj-signal); }
.gj-navtoggle__bars { display: grid; gap: 4px; width: 16px; }
.gj-navtoggle__bars span {
  display: block;
  height: 2px;
  background: var(--gj-signal);
  transition: transform .2s var(--gj-ease), opacity .2s var(--gj-ease);
}
.gj-navtoggle__label { font-family: var(--gj-font-mono); }

.gj-header[data-open="true"] .gj-navtoggle { color: var(--gj-signal); border-color: var(--gj-signal); }
.gj-header[data-open="true"] .gj-navtoggle__bars span:first-child { transform: translateY(3px) rotate(45deg); }
.gj-header[data-open="true"] .gj-navtoggle__bars span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 滚动进度坐标线 */
.gj-header__progress {
  height: 2px;
  width: 100%;
  background: linear-gradient(90deg, var(--gj-signal) 0%, var(--gj-lime) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
}

/* ============================================================
   通用排版
   ============================================================ */
.gj-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .26em;
  color: var(--gj-signal);
  text-transform: uppercase;
}
.gj-kicker::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--gj-signal);
}

.gj-h1 {
  font-size: clamp(30px, 4.6vw, 64px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--gj-paper);
}
.gj-h2 {
  font-size: clamp(21px, 2.4vw, 32px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--gj-paper);
}
.gj-h3 {
  font-size: clamp(17px, 1.7vw, 22px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--gj-paper);
}

.gj-p {
  max-width: 38em;
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--gj-body);
}

.gj-num {
  font-family: var(--gj-font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
  font-feature-settings: "tnum" 1;
}

.gj-annot {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--gj-font-mono);
  font-size: 11px;
  letter-spacing: .34em;
  color: var(--gj-steel);
  user-select: none;
}

/* 面包屑 */
.gj-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 9px;
  font-family: var(--gj-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gj-steel);
}
.gj-crumbs a { color: var(--gj-steel); transition: color .18s var(--gj-ease); }
.gj-crumbs a:hover { color: var(--gj-signal); }
.gj-crumbs__sep { color: var(--gj-line); }
.gj-crumbs [aria-current="page"] { color: var(--gj-paper); }

/* 坐标分隔线 */
.gj-rule {
  position: relative;
  height: 1px;
  background: var(--gj-line);
}
.gj-rule::before {
  content: "";
  position: absolute;
  left: 0;
  top: -2.5px;
  width: 6px;
  height: 6px;
  background: var(--gj-signal);
}

/* ============================================================
   网格 / 块 / 标签 / 表格 / 图片容器
   ============================================================ */
.gj-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gj-row) var(--gj-gap);
}
.gj-col-3 { grid-column: span 3; }
.gj-col-4 { grid-column: span 4; }
.gj-col-5 { grid-column: span 5; }
.gj-col-6 { grid-column: span 6; }
.gj-col-7 { grid-column: span 7; }
.gj-col-8 { grid-column: span 8; }
.gj-col-9 { grid-column: span 9; }
.gj-col-12 { grid-column: span 12; }

.gj-panel {
  position: relative;
  padding: clamp(18px, 2.2vw, 30px);
  background: var(--gj-ink-2);
  border: 1px solid var(--gj-line);
  border-radius: 2px;
  transition: border-color .18s var(--gj-ease), background .18s var(--gj-ease);
}
.gj-panel:hover {
  border-color: var(--gj-signal);
  background: var(--gj-ink-3);
}
.gj-panel--wine { background: var(--gj-wine); border-color: transparent; }
.gj-panel--violet { background: var(--gj-violet); border-color: transparent; }
.gj-panel--turf { background: var(--gj-turf); border-color: transparent; }
.gj-panel--wine:hover,
.gj-panel--violet:hover,
.gj-panel--turf:hover { border-color: var(--gj-signal); }
.gj-panel--soft { border-radius: 26px; }
.gj-panel--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  border-radius: 2px;
}

.gj-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--gj-steel);
  border: 1px solid var(--gj-line);
  border-radius: 2px;
  white-space: nowrap;
}
.gj-tag--lime { background: var(--gj-lime); border-color: var(--gj-lime); color: #0A1420; font-weight: 700; }
.gj-tag--signal { color: var(--gj-signal); border-color: var(--gj-signal); }
.gj-tag--track { color: var(--gj-track); border-color: var(--gj-track); }

.gj-table {
  width: 100%;
  font-size: 14.5px;
  color: var(--gj-body);
}
.gj-table th {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--gj-steel);
  border-bottom: 1px solid var(--gj-line);
  white-space: nowrap;
}
.gj-table td {
  padding: 12px;
  border-bottom: 1px solid rgba(36, 52, 73, .65);
  vertical-align: middle;
}
.gj-table tbody tr { transition: background .16s var(--gj-ease); }
.gj-table tbody tr:hover { background: rgba(46, 230, 210, .06); }
.gj-table .gj-num { color: var(--gj-paper); }
.gj-table .is-key { color: var(--gj-lime); font-weight: 700; }

/* 图片容器（供页面阶段放置素材） */
.gj-media {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  background: var(--gj-ink-2);
  border-radius: 2px;
}
.gj-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--gj-ease);
}
.gj-media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(10, 20, 32, 0) 42%, rgba(10, 20, 32, .78) 100%);
}
.gj-media:hover img { transform: scale(1.03); }
.gj-media--16x9 { aspect-ratio: 16 / 9; }
.gj-media--4x3 { aspect-ratio: 4 / 3; }
.gj-media--1x1 { aspect-ratio: 1 / 1; }
.gj-media--3x4 { aspect-ratio: 3 / 4; }
.gj-media--21x9 { aspect-ratio: 21 / 9; }
.gj-media--soft { border-radius: 26px; }
.gj-media--cut { clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%); }
.gj-media__cap {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 12px;
  z-index: 2;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--gj-paper);
}

/* ============================================================
   页脚：下边框带
   ============================================================ */
.gj-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(48px, 7vw, 100px);
  background: var(--gj-ink-2);
  border-top: 1px solid var(--gj-line);
}
.gj-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--gj-signal) 0 16%, var(--gj-lime) 16% 22%, var(--gj-line) 22% 100%);
}

.gj-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.4fr 1fr;
  gap: 34px 28px;
  padding-block: clamp(36px, 5vw, 64px);
}

.gj-footer__col { min-width: 0; }
.gj-footer__col--brand { max-width: 330px; }

.gj-footer__brand {
  display: inline-block;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .09em;
  color: var(--gj-paper);
  transition: color .18s var(--gj-ease);
}
.gj-footer__brand:hover { color: var(--gj-signal); }

.gj-footer__tagline {
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gj-steel);
}
.gj-footer__mini {
  margin-top: 16px;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gj-track);
}

.gj-footer__title {
  margin-bottom: 14px;
  font-family: var(--gj-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .26em;
  color: var(--gj-signal);
}

.gj-footer__list {
  display: grid;
  gap: 10px;
  font-size: 14px;
  color: #B6C7D6;
}

.gj-footer__link {
  position: relative;
  display: inline-block;
  transition: color .18s var(--gj-ease);
}
.gj-footer__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--gj-signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .24s var(--gj-ease);
}
.gj-footer__link:hover,
.gj-footer__link:focus-visible { color: var(--gj-signal); }
.gj-footer__link:hover::after,
.gj-footer__link:focus-visible::after { transform: scaleX(1); }

.gj-footer__meta {
  display: block;
  font-family: var(--gj-font-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--gj-steel);
}
.gj-footer__strong {
  display: block;
  font-family: var(--gj-font-mono);
  font-size: 13.5px;
  letter-spacing: .02em;
  color: var(--gj-paper);
  overflow-wrap: anywhere;
}
.gj-footer__plain {
  display: block;
  font-size: 13.5px;
  line-height: 1.6;
  color: #B6C7D6;
}

.gj-footer__bar {
  border-top: 1px solid var(--gj-line);
  background: var(--gj-ink);
}
.gj-footer__barin {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-block: 18px;
  font-family: var(--gj-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gj-steel);
}
.gj-footer__icp { color: var(--gj-steel); }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .gj-footer__grid { grid-template-columns: 1.3fr 1fr 1fr; }
  .gj-footer__col--brand { max-width: none; }
}

@media (max-width: 980px) {
  .gj-header__rail {
    flex-wrap: wrap;
    gap: 10px 14px;
    min-height: 0;
    padding-block: 12px;
  }
  .gj-brand { order: 1; }
  .gj-header__actions { order: 2; margin-left: auto; }
  .gj-navtoggle { display: inline-flex; order: 3; }

  .gj-nav {
    order: 4;
    flex-basis: 100%;
    display: none;
  }
  .gj-header[data-open="true"] .gj-nav {
    display: block;
    padding-top: 8px;
    border-top: 1px solid var(--gj-line);
  }
  .gj-nav__list { flex-direction: column; gap: 0; }
  .gj-nav__link {
    padding: 13px 4px;
    font-size: 16px;
    border-bottom: 1px solid rgba(36, 52, 73, .8);
    white-space: normal;
  }
  .gj-nav__link::after { bottom: -1px; }

  .gj-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .gj-col-3, .gj-col-4, .gj-col-5 { grid-column: span 3; }
  .gj-col-6, .gj-col-7, .gj-col-8, .gj-col-9 { grid-column: span 6; }
  .gj-col-12 { grid-column: span 6; }
}

@media (max-width: 760px) {
  body { font-size: 16px; }
  .gj-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 20px; }
  .gj-footer__col--brand { grid-column: 1 / -1; }
  .gj-btn--ghost { display: none; }
  .gj-btn { padding: 9px 14px; font-size: 13px; }
}

@media (max-width: 600px) {
  .gj-grid { grid-template-columns: 1fr; }
  .gj-col-3, .gj-col-4, .gj-col-5, .gj-col-6, .gj-col-7, .gj-col-8, .gj-col-9, .gj-col-12 {
    grid-column: 1 / -1;
  }
  .gj-brand__note { letter-spacing: .18em; font-size: 10px; }
  .gj-brand__name { font-size: 17px; }
  .gj-footer__grid { grid-template-columns: 1fr; }
  .gj-footer__barin { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 400px) {
  .gj-header__actions { display: none; }
  .gj-navtoggle { margin-left: auto; }
}

/* ============================================================
   动效降级
   ============================================================ */
@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;
  }
  .gj-media:hover img { transform: none; }
  .gj-header__progress { transition: none; }
}