/* ============================================================
   杏彩赛场 · 共享站点样式 /assets/site.css
   01 reset  02 tokens  03 base type  04 utilities  05 components
   06 header 07 footer  08 responsive
   ============================================================ */

/* ---------- 01 reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 140px;
}

body { margin: 0; }

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

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

button { font: inherit; color: inherit; background: none; border: 0; }

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 1px;
}

@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;
  }
}

/* ---------- 02 tokens ---------- */
:root {
  --ink-900: #04120C;
  --ink-800: #071A12;
  --ink-700: #0B2419;
  --lime: #C8FF3D;
  --lime-dim: #8FCC24;
  --amber: #FFB020;
  --ice: #F2FFF7;
  --mint: #A7C4B4;
  --line: #2C4A3A;
  --coral: #FF6B4A;

  --font-display: "Barlow Condensed", "Oswald", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", SFMono-Regular, Consolas, "Noto Sans SC", monospace;

  --max-width: 1280px;
  --gutter: clamp(16px, 3.2vw, 40px);
  --radius: 2px;
  --break-nav: 980px;
}

/* ---------- 03 base type ---------- */
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  color: var(--ice);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1000px 540px at 10% -10%, rgba(200, 255, 61, 0.09), transparent 68%),
    radial-gradient(820px 460px at 96% -6%, rgba(255, 176, 32, 0.07), transparent 68%),
    linear-gradient(rgba(44, 74, 58, 0.30) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 74, 58, 0.30) 1px, transparent 1px);
  background-repeat: no-repeat, no-repeat, repeat, repeat;
  background-size: auto, auto, 72px 72px, 72px 72px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--ice);
}

h1 { font-size: clamp(2.3rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.55rem); }

p { max-width: 68ch; }

::selection { background: var(--lime); color: #06120A; }

/* ---------- 04 utilities ---------- */
.container {
  width: calc(100% - var(--gutter) * 2);
  max-width: var(--max-width);
  margin-inline: auto;
}

.section { padding-block: clamp(44px, 6.5vw, 92px); }
.section--tight { padding-block: clamp(28px, 4vw, 52px); }

.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)); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
  max-width: none;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--lime);
  flex: 0 0 auto;
}

.lede {
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  line-height: 1.8;
  color: var(--mint);
  max-width: 62ch;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

/* ---------- 05 components ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn--primary { background: var(--lime); color: #06120A; border-color: var(--lime); }
.btn--primary:hover { background: var(--lime-dim); border-color: var(--lime-dim); }

.btn--ghost { background: transparent; color: var(--ice); border-color: var(--line); }
.btn--ghost:hover { color: var(--lime); border-color: var(--lime); background: rgba(200, 255, 61, 0.07); }

.btn--amber { background: transparent; color: var(--amber); border-color: rgba(255, 176, 32, 0.55); }
.btn--amber:hover { background: rgba(255, 176, 32, 0.12); border-color: var(--amber); }

.panel {
  background: linear-gradient(180deg, rgba(11, 36, 25, 0.94), rgba(7, 26, 18, 0.94));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 28px);
}

.panel--accent {
  border-color: rgba(200, 255, 61, 0.45);
  box-shadow: inset 3px 0 0 var(--lime);
}

.stat { display: block; }
.stat-value {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1;
  color: var(--lime);
}
.stat-label {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mint);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint);
  white-space: nowrap;
}
.tag--lime { color: var(--lime); border-color: rgba(200, 255, 61, 0.5); }
.tag--amber { color: var(--amber); border-color: rgba(255, 176, 32, 0.5); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px 0 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.filter-btn {
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.filter-btn:hover { color: var(--ice); border-color: var(--lime-dim); }
.filter-btn[aria-pressed="true"] {
  background: var(--lime);
  color: #06120A;
  border-color: var(--lime);
}

.filter-item.is-hidden { display: none; }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint);
  padding-block: 16px;
}
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb li:not(:last-child)::after { content: "/"; color: var(--line); }
.breadcrumb a { text-decoration: none; transition: color 0.18s ease; }
.breadcrumb a:hover { color: var(--lime); }
.breadcrumb [aria-current="page"] { color: var(--lime); }

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: var(--media-ratio, 16 / 9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--ink-700);
  background-image:
    repeating-linear-gradient(90deg, rgba(44, 74, 58, 0.55) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(0deg, rgba(44, 74, 58, 0.55) 0 1px, transparent 1px 48px),
    radial-gradient(120% 90% at 70% 0%, rgba(200, 255, 61, 0.12), transparent 62%);
}
.media-frame img,
.media-frame picture > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--wide { --media-ratio: 21 / 9; }
.media-frame--square { --media-ratio: 1 / 1; }
.media-frame--tall { --media-ratio: 4 / 5; }

.media-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--mint);
}

/* ---------- 06 header ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--lime);
  color: #06120A;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  border-radius: var(--radius);
  transform: translateY(-180%);
  transition: transform 0.18s ease;
}
.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(4, 18, 12, 0.94);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.header-frame {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.header-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 36px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  white-space: nowrap;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  background: var(--lime);
  border-radius: 50%;
  animation: pulse-ring 2.4s ease-out infinite;
}

@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(200, 255, 61, 0.55); }
  70%  { box-shadow: 0 0 0 8px rgba(200, 255, 61, 0); }
  100% { box-shadow: 0 0 0 0 rgba(200, 255, 61, 0); }
}

.meta-link {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.meta-link:hover { color: var(--lime); border-color: var(--lime); }

.header-bar {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  grid-template-columns: repeat(3, 4px);
  align-items: end;
  gap: 3px;
  height: 26px;
}
.brand-mark span { display: block; width: 4px; background: var(--lime); height: 100%; }
.brand-mark span:nth-child(1) { height: 52%; background: var(--lime-dim); }
.brand-mark span:nth-child(2) { height: 100%; }
.brand-mark span:nth-child(3) { height: 78%; background: var(--amber); }

.brand-text { display: flex; flex-direction: column; gap: 3px; }

.brand-name {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.1vw, 26px);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1;
  color: var(--ice);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.26em;
  line-height: 1;
  color: var(--mint);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ice);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease;
}
.nav-toggle:hover { border-color: var(--lime); color: var(--lime); }

.nav-toggle-bars { display: grid; gap: 4px; width: 18px; }
.nav-toggle-bars span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--lime);
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.site-header[data-open="true"] .nav-toggle-bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.primary-nav { margin-left: auto; }

.nav-list { display: flex; align-items: center; gap: 2px; }

.nav-item { display: flex; }

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  min-height: 44px;
  padding: 11px 12px;
  font-size: 15px;
  line-height: 1.3;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}
.nav-link:hover { color: var(--ice); border-bottom-color: var(--line); background: rgba(200, 255, 61, 0.06); }
.nav-link[aria-current="page"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
  background: rgba(200, 255, 61, 0.09);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--lime-dim);
}

.header-cta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 11px 18px;
  background: var(--lime);
  color: #06120A;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  text-decoration: none;
  border: 1px solid var(--lime);
  border-radius: var(--radius);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}
.header-cta:hover { background: var(--lime-dim); border-color: var(--lime-dim); }

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--amber));
  transform: scaleX(0);
  transform-origin: 0 50%;
  will-change: transform;
  pointer-events: none;
}

/* ---------- 07 footer ---------- */
.site-footer {
  margin-top: clamp(40px, 6vw, 80px);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  color: var(--mint);
  font-size: 14px;
}

.footer-frame {
  max-width: var(--max-width);
  margin-inline: auto;
  padding: clamp(36px, 5vw, 64px) var(--gutter) 26px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.7fr;
  gap: clamp(24px, 4vw, 56px);
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.1;
  color: var(--ice);
}

.footer-brand-desc {
  margin-top: 12px;
  max-width: 32ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mint);
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  margin-top: 20px;
  padding: 10px 18px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lime);
  text-decoration: none;
  border: 1px solid var(--lime);
  border-radius: var(--radius);
  transition: background-color 0.18s ease, color 0.18s ease;
}
.footer-cta:hover { background: var(--lime); color: #06120A; }

.footer-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 16px;
}

.footer-list { display: grid; gap: 9px; }

.footer-list a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.footer-list a:hover { color: var(--ice); border-bottom-color: var(--lime); }

.footer-list--contact { gap: 12px; }

.footer-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.footer-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lime-dim);
  min-width: 34px;
}

.footer-val {
  color: var(--ice);
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.copy-btn {
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mint);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}
.copy-btn:hover { color: var(--lime); border-color: var(--lime); }
.copy-btn[data-copied="true"] { background: var(--lime); color: #06120A; border-color: var(--lime); }

.footer-note {
  margin-top: 16px;
  max-width: 44ch;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mint);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.footer-copy { margin: 0; font-size: 12px; }
.footer-beian { margin: 0; font-size: 12px; color: var(--mint); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-left: auto;
}
.footer-legal a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.footer-legal a:hover { color: var(--lime); border-bottom-color: var(--lime); }

/* ---------- 08 responsive ---------- */
@media (max-width: 1100px) {
  .nav-link { padding-inline: 9px; font-size: 14px; }
  .nav-index { font-size: 9px; }
  .header-cta { padding: 10px 14px; font-size: 14px; }
}

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

  .header-bar {
    flex-wrap: wrap;
    gap: 10px;
    padding-block: 12px;
    min-height: 0;
  }

  .brand { order: 1; }
  .nav-toggle { order: 2; margin-left: auto; }
  .header-cta { order: 3; display: none; }

  .primary-nav {
    order: 4;
    flex: 1 0 100%;
    margin-left: 0;
    display: none;
    padding-top: 6px;
    border-top: 1px solid var(--line);
  }
  .site-header[data-open="true"] .primary-nav { display: block; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }

  .nav-link {
    justify-content: flex-start;
    min-height: 48px;
    padding: 13px 10px;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
    font-size: 16px;
  }
  .nav-link[aria-current="page"] {
    border-bottom-color: var(--line);
    border-left-color: var(--lime);
  }

  .header-meta { font-size: 10px; letter-spacing: 0.1em; }

  .grid--2, .grid--3 { grid-template-columns: 1fr; }

  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .header-meta { min-height: 32px; }
  .meta-item { letter-spacing: 0.06em; }
  .nav-toggle-text { display: none; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-legal { margin-left: 0; width: 100%; }
  .footer-bottom { gap: 6px 16px; }
}