/* ============================================================
   LEYU赛事 · 共享站点样式 /assets/site.css
   夜场转播控制室 × 展览画册
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 极淡战术板网格，作为整页场域底纹 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(100, 245, 178, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(100, 245, 178, 0.05) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.75;
}

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

ul,
ol { margin: 0; padding: 0; }

button,
input,
select,
textarea { font: inherit; color: inherit; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

::selection { background: var(--accent); color: #06211a; }

#main-content { scroll-margin-top: 108px; }

/* ---------- 2. Design tokens ---------- */
:root {
  --bg: #0a1411;
  --bg-deep: #111b18;
  --panel: #172a24;
  --line: #2f4a40;
  --accent: #64f5b2;
  --bone: #f2efe5;
  --mist: #b7c9bf;
  --red: #ff5d62;
  --amber: #f3b544;
  --dim: #6c8f82;

  --font-display: "Barlow Condensed", "Arial Narrow", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", SFMono-Regular, Menlo, monospace;
  --font-serif: "Noto Serif SC", "Songti SC", serif;

  --wrap: 1180px;
  --gut: clamp(16px, 4vw, 40px);
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 0.4s;
}

/* ---------- 3. Typography ---------- */
h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--bone);
}

h1 { font-size: clamp(3.2rem, 8vw, 7.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.8rem); }
h3 { font-size: clamp(1.3rem, 2.2vw, 1.9rem); }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

strong { color: var(--bone); font-weight: 700; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.9em;
}

.lede {
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  line-height: 1.85;
  color: var(--mist);
  max-width: 62ch;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

/* ---------- 4. Layout helpers ---------- */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.section { padding-block: clamp(48px, 7vw, 96px); }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -80px;
  z-index: 200;
  display: inline-block;
  padding: 10px 18px;
  background: var(--accent);
  color: #06211a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- 6. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  isolation: isolate;
  background: var(--bg-deep);
}

.header-utility {
  background: var(--bg);
  border-bottom: 1px solid rgba(47, 74, 64, 0.65);
}

.header-utility-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 7px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.header-descriptor {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  min-width: 0;
  flex-wrap: wrap;
}

.header-descriptor-mark {
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(100, 245, 178, 0.14);
}

.header-tagline {
  color: var(--dim);
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.header-utility-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  flex: none;
}

.header-utility-link {
  color: var(--mist);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.header-utility-link:hover,
.header-utility-link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.header-bar { background: var(--bg-deep); }

.header-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: 11px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--bone);
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  background: var(--accent);
  color: #06211a;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.header-rule {
  position: relative;
  height: 2px;
  background: var(--line);
  overflow: hidden;
}

.header-rule::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: clamp(80px, 14vw, 180px);
  background: var(--accent);
}

/* 主导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 32px);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.8vw, 26px);
  list-style: none;
}

.nav-item { margin: 0; }

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  color: var(--mist);
  font-size: 0.94rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover { color: var(--bone); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--accent); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta { flex: none; }

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 13px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--bone);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 -6px 0 var(--accent), 0 6px 0 var(--accent);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.nav-toggle-label { line-height: 1; }

.site-header[data-open] .nav-toggle-bars {
  background: var(--red);
  box-shadow: none;
  transform: rotate(45deg);
}

/* ---------- 7. Buttons & chips ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.2s var(--ease);
}

.btn-primary {
  background: var(--accent);
  color: #06211a;
  box-shadow: 4px 4px 0 rgba(100, 245, 178, 0.22);
}
.btn-primary:hover {
  background: #8cf9cb;
  box-shadow: 6px 6px 0 rgba(100, 245, 178, 0.28);
}
.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(100, 245, 178, 0.22);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--bone);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-transform: uppercase;
}
.chip--go { color: var(--accent); border-color: rgba(100, 245, 178, 0.45); }
.chip--red { color: var(--red); border-color: rgba(255, 93, 98, 0.5); }
.chip--amber { color: var(--amber); border-color: rgba(243, 181, 68, 0.5); }

/* ---------- 8. Breadcrumbs ---------- */
.breadcrumbs {
  padding-block: 20px 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}

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

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--line);
}

.breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.breadcrumb-link:hover,
.breadcrumb-link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- 9. 展签与标识块 ---------- */
.plate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 13px;
  background: var(--panel);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.plate-num { color: var(--accent); }

/* ---------- 10. 图片容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  aspect-ratio: 16 / 9;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.media img,
.media svg,
.media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 21 / 9; }
.media--square { aspect-ratio: 1 / 1; }
.media--tall { aspect-ratio: 4 / 5; }

.media-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.media-caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

/* ---------- 11. Footer ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: clamp(64px, 9vw, 140px);
  background: var(--bg-deep);
  border-top: 1px solid var(--line);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.5fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(40px, 6vw, 72px) clamp(32px, 5vw, 56px);
}

.footer-brand { min-width: 0; }

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--bone);
  text-decoration: none;
}

.footer-brand-mark {
  width: 32px;
  height: 32px;
  font-size: 0.88rem;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

.footer-brand-line {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--bone);
}

.footer-brand-note {
  margin: 10px 0 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--dim);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.footer-col-title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.footer-list {
  display: grid;
  gap: 10px;
  list-style: none;
}

.footer-link {
  color: var(--mist);
  font-size: 0.94rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.footer-link:hover,
.footer-link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.footer-contact { min-width: 0; }

.footer-address {
  display: grid;
  gap: 12px;
  font-style: normal;
  color: var(--mist);
  font-size: 0.92rem;
}

.footer-contact-item {
  display: grid;
  gap: 2px;
}

.footer-contact-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

.footer-contact-value {
  color: var(--bone);
  word-break: break-word;
}

.footer-contact-note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--dim);
}

.footer-legal {
  background: rgba(10, 20, 17, 0.62);
  border-top: 1px solid var(--line);
}

.footer-legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
  padding-block: 18px;
}

.footer-filing {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--dim);
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  list-style: none;
}

.footer-legal-links .footer-link { font-size: 0.82rem; }

.footer-copyright {
  margin: 0 0 0 auto;
  font-size: 0.8rem;
  color: var(--dim);
}

/* ---------- 12. 滚动进度条（JS 注入） ---------- */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  z-index: 90;
  pointer-events: none;
  background: transparent;
}

.scroll-progress-bar {
  height: 100%;
  width: 0;
  background: var(--accent);
}

/* ---------- 13. 滚动显现 ---------- */
[data-reveal] {
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

[data-reveal][data-reveal-state="pending"] {
  opacity: 0;
  transform: translateY(16px);
}

[data-reveal][data-reveal-state="shown"] {
  opacity: 1;
  transform: none;
}

/* ---------- 14. 焦点与可访问性 ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1024px) {
  .header-tagline { display: none; }
}

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 70;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gut) 22px;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    max-height: calc(100vh - 110px);
    max-height: calc(100dvh - 110px);
    overflow-y: auto;
  }

  .site-header[data-open] .site-nav { display: flex; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 14px 4px;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(47, 74, 64, 0.6);
  }

  .nav-link::after { display: none; }

  .nav-link[aria-current="page"] {
    color: var(--accent);
    box-shadow: inset 3px 0 0 var(--accent);
    padding-left: 14px;
  }

  .nav-cta {
    margin-top: 18px;
    width: 100%;
    padding-block: 13px;
  }

  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand { grid-column: 1 / -1; }

  .grid-12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .header-utility-inner { font-size: 0.64rem; letter-spacing: 0.08em; }
  .header-utility-links { gap: 12px; }
  .brand-name { font-size: 1.2rem; }
  .brand-sub { font-size: 0.56rem; letter-spacing: 0.12em; }
  #main-content { scroll-margin-top: 96px; }
}

@media (max-width: 620px) {
  .footer-main { grid-template-columns: minmax(0, 1fr); }
  .footer-cols { grid-template-columns: minmax(0, 1fr); }
  .footer-copyright { margin-left: 0; }
  .footer-legal-inner { gap: 12px; }
  .grid-12 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 420px) {
  .header-descriptor { gap: 8px; }
  .nav-toggle-label { display: none; }
}

/* ---------- 16. prefers-reduced-motion ---------- */
@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;
    transition-delay: 0ms !important;
  }

  [data-reveal],
  [data-reveal][data-reveal-state="pending"] {
    opacity: 1;
    transform: none;
  }

  .scroll-progress-bar { transition: none; }

  .btn-primary:active { transform: none; }
}