/* =========================================================
   完美体育赛场 — 共享站点样式 /assets/site.css
   母题：夜场数据控制台 · 切角面板 · 斜向引导线 · 蜂窝标记
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 7.5rem;
}

body,
h1, h2, h3, h4, h5, h6,
p, ul, ol, li, dl, dt, dd,
figure, figcaption, blockquote {
  margin: 0;
}

ul, ol { padding-left: 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; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Tokens ---------- */
:root {
  --field-night: #0A1120;
  --stand-blue: #121D33;
  --panel-blue: #1A2C4A;
  --line-blue: #2A4467;
  --neon-cyan: #38F2D2;
  --deep-cyan: #12A99A;
  --signal-orange: #FF7A2E;
  --warm-white: #F5F1E8;
  --mist-blue: #9FB2CC;
  --amber: #FFC46B;
  --ink-black: #060B14;

  --ink-strong: #16233A;

  --shell-max: 1180px;
  --shell-pad: clamp(1rem, 4vw, 2.5rem);

  --font-display: "Barlow Condensed", "Oswald", "Arial Narrow",
                  "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei",
                  system-ui, sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "Alibaba PuHuiTi",
               "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
               "Segoe UI", sans-serif;
  --font-data: "JetBrains Mono", "Sarasa Mono SC", "Cascadia Mono",
               ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --cut-sm: 6px;
  --cut-md: 10px;
  --cut-lg: 14px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast: 160ms;
  --t-mid: 220ms;
}

/* ---------- 3. Base typography ---------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.78;
  letter-spacing: 0.01em;
  color: var(--mist-blue);
  background-color: var(--field-night);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

@media (min-width: 900px) {
  body { font-size: 17px; }
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--warm-white);
  font-stretch: condensed;
}

p { max-width: 34em; }

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

.mono {
  font-family: var(--font-data);
  font-size: 0.86em;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 4. Focus / skip ---------- */
:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.65rem;
  left: 0.65rem;
  z-index: 300;
  transform: translateY(-180%);
  padding: 0.62rem 1.05rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--field-night);
  background-color: var(--neon-cyan);
  text-decoration: none;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: transform var(--t-fast) var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

/* ---------- 5. Shell & layout utilities ---------- */
.shell {
  width: min(100% - (var(--shell-pad) * 2), var(--shell-max));
  margin-inline: auto;
}

.main-content { display: block; }

.grid {
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}

.grid--halves {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

/* ---------- 6. Site header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background-color: var(--field-night);
  border-bottom: 1px solid var(--line-blue);
}

/* 6a. 上层品牌说明条 */
.brandbar {
  background-color: var(--ink-black);
  border-bottom: 1px solid rgba(42, 68, 103, 0.55);
}

.brandbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  padding-block: 0.72rem;
  transition: padding-block var(--t-mid) var(--ease);
}

.site-header[data-compact="true"] .brandbar__inner {
  padding-block: 0.3rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--warm-white);
}

.brand__mark {
  position: relative;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  background-color: var(--neon-cyan);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.brand__mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  background-color: var(--ink-black);
  clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
}

.brand__type { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--warm-white);
  transition: color var(--t-fast) var(--ease);
}

.brand:hover .brand__name { color: var(--neon-cyan); }

.brand__tagline {
  display: block;
  font-size: 0.72rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  color: var(--mist-blue);
}

.brandbar__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  max-width: 100%;
}

.version-badge {
  display: inline-block;
  padding: 0.2rem 0.52rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--signal-orange);
  background-color: rgba(255, 122, 46, 0.08);
  border: 1px solid rgba(255, 122, 46, 0.45);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.brandbar__note {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--mist-blue);
}

.site-header[data-compact="true"] .brandbar__note {
  display: none;
}

/* 6b. 下层栏目条 */
.navbar {
  position: relative;
  background-color: rgba(18, 29, 51, 0.94);
  border-bottom: 1px solid rgba(42, 68, 103, 0.75);
}

.navbar__inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-block: 0.45rem;
}

.nav { display: block; }

.nav__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.15rem;
}

.nav__item { min-width: 0; }

.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem 0.6rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist-blue);
  text-decoration: none;
  border: 1px solid transparent;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: color var(--t-fast) var(--ease),
              background-color var(--t-mid) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.nav__link:hover {
  color: var(--warm-white);
  background-color: var(--panel-blue);
  border-color: var(--line-blue);
}

.nav__link[aria-current="page"] {
  color: var(--neon-cyan);
  background-color: rgba(56, 242, 210, 0.08);
  border-color: rgba(56, 242, 210, 0.35);
}

.nav__link[aria-current="page"]::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--neon-cyan);
  animation: state-breathe 2.4s ease-in-out infinite;
}

/* 6c. 移动端抽屉按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.55rem;
  margin-left: auto;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--warm-white);
  background-color: transparent;
  border: 1px solid var(--line-blue);
  cursor: pointer;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background-color var(--t-mid) var(--ease);
}

.nav-toggle:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.nav-toggle[data-open="true"] {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  background-color: rgba(56, 242, 210, 0.12);
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
}

.nav-toggle__bars > span {
  display: block;
  width: 16px;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--t-mid) var(--ease),
              opacity var(--t-fast) var(--ease);
}

.nav-toggle[data-open="true"] .nav-toggle__bars > span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[data-open="true"] .nav-toggle__bars > span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[data-open="true"] .nav-toggle__bars > span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-toggle__text { line-height: 1; }

/* 6d. 滚动进度线 */
.scroll-meter {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background-image: linear-gradient(90deg, var(--neon-cyan), var(--signal-orange));
  pointer-events: none;
}

/* 6e. 移动端断点 */
@media (max-width: 899px) {
  .navbar__inner { padding-block: 0.42rem; }

  .nav {
    order: 3;
    flex: 1 0 100%;
    display: none;
    padding-top: 0.55rem;
    padding-bottom: 0.35rem;
    border-top: 1px solid rgba(42, 68, 103, 0.7);
  }

  .nav[data-open="true"] { display: block; }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
  }

  .nav__link {
    width: 100%;
    justify-content: flex-start;
    padding: 0.72rem 0.85rem;
    font-size: 1rem;
  }

  .nav-toggle { display: inline-flex; }

  .brandbar__note { display: none; }
}

@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

/* ---------- 7. Site footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background-color: var(--ink-black);
  color: var(--mist-blue);
  border-top: 1px solid rgba(56, 242, 210, 0.28);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(42, 68, 103, 0.18) 0 1px,
    transparent 1px 44px
  );
  pointer-events: none;
}

.footer__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.25rem;
  padding-block: clamp(2.5rem, 6vw, 4rem) clamp(1.75rem, 4vw, 3rem);
}

@media (min-width: 900px) {
  .footer__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr) minmax(0, 1.1fr);
    gap: 3rem;
  }
}

.footer__brand { min-width: 0; }

.footer__logo {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.7rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--warm-white);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.footer__logo:hover { color: var(--neon-cyan); }

.footer__summary {
  margin-top: 0.9rem;
  font-size: 0.92rem;
  line-height: 1.75;
  max-width: 28em;
  color: var(--mist-blue);
}

.footer__stamp {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.1rem;
  max-width: none;
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 130px), 1fr));
  gap: 1.6rem 2rem;
  min-width: 0;
}

.footer__col { min-width: 0; }

.footer__heading {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

.footer__heading::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  min-width: 12px;
  background-image: linear-gradient(90deg, rgba(56, 242, 210, 0.5), transparent);
}

.footer__links {
  display: grid;
  gap: 0.55rem;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--mist-blue);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.footer__link::before {
  content: "";
  display: block;
  width: 0;
  height: 1px;
  background-color: var(--neon-cyan);
  transition: width var(--t-fast) var(--ease);
}

.footer__link:hover { color: var(--warm-white); }

.footer__link:hover::before { width: 14px; }

.footer__link--inline {
  display: inline;
  font-size: 0.78rem;
  color: var(--mist-blue);
}

.footer__link--inline::before { display: none; }

.footer__link--inline:hover { color: var(--neon-cyan); }

.footer__contact { min-width: 0; }

.contact-list {
  display: grid;
  gap: 0.8rem;
}

.contact-line {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.contact-line__label {
  font-family: var(--font-data);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist-blue);
}

.contact-line__value {
  font-family: var(--font-data);
  font-size: 0.84rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--warm-white);
  word-break: break-word;
}

.contact-line__value--text {
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--mist-blue);
}

.footer__legal {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 1.5rem;
  padding-block: 1.1rem 1.5rem;
  border-top: 1px solid rgba(42, 68, 103, 0.7);
}

.footer__legal-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  max-width: none;
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist-blue);
}

.footer__icp {
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--mist-blue);
}

.footer__legal-sep {
  color: var(--line-blue);
}

/* ---------- 8. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.78rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid transparent;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background-color var(--t-mid) var(--ease),
              color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease);
}

.btn--primary {
  color: var(--ink-black);
  background-color: var(--signal-orange);
}

.btn--primary:hover { background-color: #FF9250; }

.btn--cyan {
  color: var(--field-night);
  background-color: var(--neon-cyan);
}

.btn--cyan:hover { background-color: #6FF8DF; }

.btn--ghost {
  color: var(--warm-white);
  background-color: transparent;
  border-color: var(--line-blue);
}

.btn--ghost:hover {
  color: var(--neon-cyan);
  border-color: var(--neon-cyan);
  background-color: rgba(56, 242, 210, 0.08);
}

/* ---------- 9. Breadcrumb ---------- */
.breadcrumb {
  padding-block: 1.1rem 0;
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--mist-blue);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}

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

.breadcrumb a {
  color: var(--mist-blue);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.breadcrumb a:hover { color: var(--neon-cyan); }

.breadcrumb [aria-current="page"] { color: var(--warm-white); }

/* ---------- 10. Sections & headings ---------- */
.section {
  position: relative;
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.section--stand { background-color: var(--stand-blue); }

.section--white {
  background-color: var(--warm-white);
  color: var(--ink-strong);
}

.section--white h2,
.section--white h3 {
  color: var(--field-night);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--neon-cyan);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background-color: var(--neon-cyan);
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 7vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--warm-white);
  font-stretch: condensed;
}

/* ---------- 11. Content & reading areas ---------- */
.content {
  width: min(100% - (var(--shell-pad) * 2), 68ch);
  margin-inline: auto;
}

.reading {
  padding-block: clamp(2rem, 5vw, 3.5rem);
  background-color: var(--warm-white);
  color: var(--ink-strong);
}

.reading h2,
.reading h3 { color: var(--field-night); }

.reading p {
  max-width: 34em;
  line-height: 1.78;
}

.reading a {
  color: var(--deep-cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

.reading a:hover { color: var(--field-night); }

/* ---------- 12. Panels & tags ---------- */
.panel {
  padding: clamp(1.1rem, 3vw, 1.75rem);
  background-color: var(--panel-blue);
  border: 1px solid rgba(42, 68, 103, 0.8);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.22rem 0.55rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--mist-blue);
  background-color: rgba(26, 44, 74, 0.6);
  border: 1px solid rgba(42, 68, 103, 0.9);
}

.tag--cyan {
  color: var(--neon-cyan);
  background-color: rgba(56, 242, 210, 0.08);
  border-color: rgba(56, 242, 210, 0.4);
}

.tag--orange {
  color: var(--signal-orange);
  background-color: rgba(255, 122, 46, 0.08);
  border-color: rgba(255, 122, 46, 0.45);
}

.tag--amber {
  color: var(--amber);
  background-color: rgba(255, 196, 107, 0.08);
  border-color: rgba(255, 196, 107, 0.4);
}

/* ---------- 13. Media frames (image container base) ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--panel-blue);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(to bottom, rgba(245, 241, 232, 0.055) 0 1px, transparent 1px 4px),
    linear-gradient(180deg, rgba(6, 11, 20, 0.05), rgba(6, 11, 20, 0.58));
}

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

.media-frame__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 0.35rem 0.6rem;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--warm-white);
  background-color: rgba(6, 11, 20, 0.72);
}

/* ---------- 14. Motion ---------- */
@keyframes state-breathe {
  0%, 100% { box-shadow: 0 0 0 3px rgba(56, 242, 210, 0.20); }
  50%      { box-shadow: 0 0 0 6px rgba(56, 242, 210, 0.05); }
}

@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;
  }

  .nav__link[aria-current="page"]::before {
    animation: none;
    box-shadow: 0 0 0 3px rgba(56, 242, 210, 0.20);
  }
}

/* ---------- 15. Print ---------- */
@media print {
  .site-header,
  .site-footer,
  .skip-link,
  .scroll-meter { display: none !important; }

  body {
    background-color: #FFFFFF;
    color: #111111;
  }
}