/* ============================================================
   CQ游艺 / 共享站点样式  /assets/site.css
   坐标枢纽 · 霓虹街机 · 数据叙事
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  --ink: #07080D;
  --ink-2: #0E1420;
  --cyan: #35F2E0;
  --cyan-deep: #0E6E6B;
  --cyan-mist: #9DF3EC;
  --violet: #8A5CFF;
  --coral: #FF6B4A;
  --lime: #B6FF3D;
  --mist: #E8F1F5;
  --gray: #6F7C8C;
  --line: rgba(53, 242, 224, 0.18);
  --line-soft: rgba(111, 124, 140, 0.26);
  --font-head: "Inter", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Source Han Sans SC", "Noto Sans SC", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1320px;
  --gutter: clamp(18px, 3vw, 30px);
  --gap: 28px;
  --cut: 12px;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}
body {
  margin: 0;
  background-color: var(--ink);
  background-image:
    linear-gradient(rgba(53, 242, 224, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 242, 224, 0.045) 1px, transparent 1px);
  background-size: 74px 74px;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: #fff;
}
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; }
button { font: inherit; color: inherit; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
table { border-collapse: collapse; width: 100%; }
::selection { background: var(--cyan); color: var(--ink); }
:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--ink-2); }
::-webkit-scrollbar-thumb { background: var(--cyan-deep); border: 2px solid var(--ink-2); }
html { scrollbar-color: var(--cyan-deep) var(--ink-2); }
#main-content { display: block; outline: none; }

/* ---------- 3. Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}
.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-12 { grid-column: span 12; }
@media (min-width: 1100px) {
  .offset-left { margin-left: -56px; }
  .offset-right { margin-right: -56px; }
}
@media (max-width: 1024px) {
  .span-3, .span-4, .span-5 { grid-column: span 6; }
  .span-7, .span-8 { grid-column: span 12; }
}
@media (max-width: 640px) {
  .grid-12 { grid-template-columns: 1fr; gap: 18px; }
  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8, .span-12 { grid-column: span 1; }
}

/* ---------- 4. Panels & marks ---------- */
.panel {
  position: relative;
  background: linear-gradient(158deg, rgba(14, 20, 32, 0.97), rgba(7, 8, 13, 0.97));
  border: 1px solid var(--line);
  padding: clamp(18px, 2.4vw, 28px);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.panel--flat { background: var(--ink-2); }
.panel--violet { border-color: rgba(138, 92, 255, 0.42); }
.panel--lime { border-color: rgba(182, 255, 61, 0.42); }

.coord-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(53, 242, 224, 0.1);
  border: 1px solid rgba(53, 242, 224, 0.36);
}
.coord-tag--violet { color: var(--violet); background: rgba(138, 92, 255, 0.12); border-color: rgba(138, 92, 255, 0.42); }
.coord-tag--coral { color: var(--coral); background: rgba(255, 107, 74, 0.12); border-color: rgba(255, 107, 74, 0.42); }

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}
.eyebrow::before { content: ""; display: block; width: 26px; height: 1px; background: var(--cyan); }

.section-title { font-size: clamp(26px, 3.4vw, 36px); }
.section-title--outline {
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
  text-stroke: 1px var(--cyan);
}
.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--cyan-mist); line-height: 1.7; }

.tag {
  display: inline-block;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(53, 242, 224, 0.08);
  border: 1px solid currentColor;
}
.tag--cyan { color: var(--cyan); }
.tag--violet { color: var(--violet); background: rgba(138, 92, 255, 0.1); }
.tag--coral { color: var(--coral); background: rgba(255, 107, 74, 0.1); }

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-cut: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  clip-path: polygon(var(--btn-cut) 0, 100% 0, 100% calc(100% - var(--btn-cut)), calc(100% - var(--btn-cut)) 100%, 0 100%, 0 var(--btn-cut));
  transition: background-color 0.12s ease, color 0.12s ease, transform 0.12s ease, box-shadow 0.12s ease;
}
.btn--lime { background: var(--lime); color: #06210a; box-shadow: 0 10px 26px -14px rgba(182, 255, 61, 0.9); }
.btn--lime:hover { background: #cdff77; transform: translateY(-2px); }
.btn--cyan { background: var(--cyan); color: #04211f; }
.btn--cyan:hover { background: #7cf7ea; transform: translateY(-2px); }
.btn--ghost { background: rgba(53, 242, 224, 0.06); color: var(--cyan); border-color: rgba(53, 242, 224, 0.42); }
.btn--ghost:hover { background: rgba(53, 242, 224, 0.16); color: var(--cyan-mist); }
.btn--sm { padding: 9px 14px; font-size: 13px; --btn-cut: 6px; }
.btn--block { width: 100%; }
.btn:focus-visible { outline: none; box-shadow: inset 0 0 0 2px var(--ink), inset 0 0 0 4px var(--mist); }

/* ---------- 6. Breadcrumbs & prose ---------- */
.breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}
.breadcrumbs ol { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.breadcrumbs li { display: flex; align-items: center; gap: 8px; }
.breadcrumbs li + li::before { content: "/"; color: var(--cyan-deep); }
.breadcrumbs a { color: var(--gray); text-decoration: none; }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs [aria-current="page"] { color: var(--mist); }

.prose { max-width: 68ch; color: var(--mist); font-size: 17px; line-height: 1.8; }
.prose h2 { margin-top: 34px; font-size: clamp(22px, 2.4vw, 28px); }
.prose h3 { margin-top: 26px; font-size: 19px; color: var(--cyan-mist); }
.prose p + p { margin-top: 1em; }
.prose a { color: var(--cyan); text-decoration: underline; text-decoration-color: rgba(53, 242, 224, 0.4); }
.prose ul { margin-top: 0.9em; }
.prose li { position: relative; padding-left: 20px; margin-top: 7px; }
.prose li::before { content: ""; position: absolute; left: 0; top: 0.68em; width: 7px; height: 7px; background: var(--cyan); }
.prose strong { color: #fff; }

/* ---------- 7. Media frame ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(53, 242, 224, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 242, 224, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
}
.media-frame > img,
.media-frame > svg { width: 100%; height: 100%; object-fit: cover; }
.media-frame--ratio-16x9 { aspect-ratio: 16 / 9; }
.media-frame--ratio-4x3 { aspect-ratio: 4 / 3; }
.media-frame--ratio-1x1 { aspect-ratio: 1 / 1; }
.media-frame--ratio-3x4 { aspect-ratio: 3 / 4; }
.media-frame--pixel > img { image-rendering: pixelated; }

/* ---------- 8. Accordion ---------- */
.accordion { border-top: 1px solid var(--line-soft); }
.accordion__item { border-bottom: 1px solid var(--line-soft); }
.accordion__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  color: var(--mist);
  cursor: pointer;
  transition: color 0.12s ease;
}
.accordion__trigger:hover { color: var(--cyan); }
.accordion__trigger[aria-expanded="true"] { color: var(--lime); }
.accordion__trigger::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
  transition: transform 0.2s ease, color 0.2s ease;
}
.accordion__trigger[aria-expanded="true"]::after { content: "–"; color: var(--lime); transform: rotate(180deg); }
.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  visibility: hidden;
  transition: grid-template-rows 0.3s ease, visibility 0.3s ease;
}
.accordion__item[data-open="true"] > .accordion__panel { grid-template-rows: 1fr; visibility: visible; }
.accordion__inner { min-height: 0; overflow: hidden; padding: 0 4px 20px; color: var(--mist); }

/* ---------- 9. Reveal ---------- */
.has-js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.has-js [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 10. Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 18px;
  background: var(--lime);
  color: #06210a;
  font-weight: 800;
  text-decoration: none;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 11. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(90deg, rgba(7, 8, 13, 0.97), rgba(14, 20, 32, 0.97));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.header-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 18px;
  transition: padding 0.25s ease;
}
.site-header[data-condensed="true"] .header-inner { padding-top: 9px; padding-bottom: 9px; }
.site-header[data-condensed="true"] .brand-tag { opacity: 0; height: 0; overflow: hidden; }

.brand-zone { min-width: 0; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--mist);
}
.brand-mark { flex: none; width: 34px; height: 34px; }
.brand-mark svg { width: 100%; height: 100%; }
.brand-text { display: block; min-width: 0; }
.brand-name {
  display: block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: #fff;
  text-shadow: 0 0 18px rgba(53, 242, 224, 0.35);
}
.brand-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gray);
  transition: opacity 0.2s ease;
}

.coord-band {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(53, 242, 224, 0.07);
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  white-space: nowrap;
  animation: coord-breathe 7s ease-in-out infinite;
}
.coord-band__label { color: var(--gray); }
.coord-band__value { color: var(--cyan-mist); }
@keyframes coord-breathe {
  0%, 100% { opacity: 0.94; }
  50% { opacity: 1; }
}

.site-nav { min-width: 0; }
.nav-list { display: flex; align-items: center; gap: 2px; }
.nav-link {
  display: inline-block;
  padding: 8px 10px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;
}
.nav-link:hover { color: var(--cyan); background: rgba(53, 242, 224, 0.08); border-color: rgba(53, 242, 224, 0.28); }
.nav-link[aria-current="page"] { color: var(--ink); background: var(--cyan); border-color: var(--cyan); font-weight: 700; }

.header-actions { display: flex; align-items: center; gap: 10px; justify-self: end; }
.version-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cyan-mist);
  background: rgba(138, 92, 255, 0.12);
  border: 1px solid rgba(138, 92, 255, 0.5);
  transition: background-color 0.12s ease, border-color 0.12s ease;
}
.version-chip__key { padding: 1px 5px; background: var(--violet); color: var(--ink); font-weight: 700; }
.version-chip:hover { background: rgba(138, 92, 255, 0.26); border-color: var(--violet); }
.header-cta { white-space: nowrap; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  cursor: pointer;
}
.nav-toggle__bars { display: grid; gap: 3px; width: 18px; }
.nav-toggle__bars span { display: block; height: 2px; background: currentColor; transition: transform 0.2s ease, opacity 0.2s ease; }
.site-header[data-open="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) 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(-5px) rotate(-45deg); }

.scroll-meter {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet), var(--coral), var(--lime));
  transition: width 0.12s linear;
}

/* ---------- 12. Header responsive ---------- */
@media (max-width: 1080px) {
  .header-inner {
    grid-template-columns: auto auto;
    grid-template-areas:
      "brand actions"
      "nav nav";
    row-gap: 0;
  }
  .brand-zone { grid-area: brand; }
  .header-actions { grid-area: actions; }
  .site-nav { grid-area: nav; display: none; }
  .site-header[data-open="true"] .site-nav { display: block; }
  .coord-band { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-list { flex-direction: column; align-items: stretch; padding: 10px 0 18px; }
  .nav-link {
    display: block;
    padding: 13px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav-link[aria-current="page"] {
    background: rgba(53, 242, 224, 0.14);
    color: var(--cyan);
    border-color: transparent;
    border-left: 3px solid var(--cyan);
    padding-left: 12px;
  }
}
@media (max-width: 640px) {
  .version-chip { display: none; }
  .header-cta { padding: 8px 11px; font-size: 12px; --btn-cut: 5px; }
  .nav-toggle__text { display: none; }
  .brand-name { font-size: 18px; }
  .brand-tag { font-size: 10px; }
}

/* ---------- 13. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: 96px;
  padding-bottom: 30px;
  background: linear-gradient(180deg, var(--ink-2), var(--ink) 62%);
  border-top: 1px solid var(--line);
}
.footer-slash {
  height: 10px;
  opacity: 0.9;
  background:
    linear-gradient(100deg, var(--cyan) 0 16%, transparent 16%),
    linear-gradient(100deg, transparent 28%, var(--violet) 28% 42%, transparent 42%),
    linear-gradient(100deg, transparent 54%, var(--coral) 54% 64%, transparent 64%),
    linear-gradient(100deg, transparent 76%, var(--lime) 76% 85%, transparent 85%);
}
.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding: 54px 0 38px;
}
.footer-brand { min-width: 0; }
.brand--footer .brand-mark { width: 28px; height: 28px; }
.brand--footer .brand-name { font-size: 18px; text-shadow: none; }
.footer-lede { margin-top: 18px; max-width: 34ch; font-size: 15px; color: var(--mist); }
.footer-note {
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--violet);
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
  max-width: 36ch;
}
.footer-col { min-width: 0; }
.footer-col__title {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.footer-links { margin-top: 16px; }
.footer-links li + li { margin-top: 10px; }
.footer-link {
  font-size: 15px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.12s ease, border-color 0.12s ease;
}
.footer-link:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
.footer-col--contact .btn { margin-top: 20px; }
.contact-list { margin-top: 16px; }
.contact-list li { display: flex; gap: 10px; align-items: baseline; }
.contact-list li + li { margin-top: 10px; }
.contact-list__key {
  flex: none;
  min-width: 44px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--violet);
}
.contact-list__value { font-size: 14px; color: var(--mist); word-break: break-word; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gray);
}
.footer-filing { color: var(--cyan-mist); }
.footer-domain { color: var(--gray); }

/* ---------- 14. Footer responsive ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; padding: 44px 0 30px; }
  .footer-brand { grid-column: span 2; }
  .footer-col--contact { grid-column: span 2; }
}
@media (max-width: 640px) {
  .site-footer { margin-top: 64px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand, .footer-col--contact { grid-column: span 1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 15. Motion preferences ---------- */
@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;
  }
  .has-js [data-reveal] { opacity: 1; transform: none; }
  .btn:hover { transform: none; }
  .coord-band { animation: none; opacity: 1; }
}