/* ==========================================================================
   NG体育中文站 · 共享样式 /assets/site.css
   深夜数据指挥中心：深空黑底、极细网格、荧光青高亮、信号橙行动点
   ========================================================================== */

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

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

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

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

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

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

a { color: inherit; text-decoration: none; }

table { border-collapse: collapse; }

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

/* ---------- tokens ---------- */
:root {
  --ink: #05070A;
  --panel: #0B131A;
  --grid: #16232D;
  --paper: #F1EBDF;
  --paper-ink: #16100C;
  --cyan: #00E8D2;
  --cyan-soft: #7CFFE6;
  --orange: #FF6A13;
  --orange-deep: #C8430F;
  --muted: #8B99A5;

  --hairline: rgba(124, 255, 230, 0.16);
  --hairline-strong: rgba(124, 255, 230, 0.36);
  --paper-line: rgba(22, 16, 12, 0.16);

  --radius: 2px;

  --gutter: clamp(16px, 3vw, 32px);
  --shell: min(1320px, calc(100% - 2 * var(--gutter)));

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;

  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(124, 255, 230, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 255, 230, 0.035) 1px, transparent 1px);
  background-size: 80px 80px;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 620px at 86% -12%, rgba(0, 232, 210, 0.10), transparent 66%),
    radial-gradient(720px 520px at -12% 106%, rgba(255, 106, 19, 0.07), transparent 62%);
}

h1, h2, h3, h4 {
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

p { max-width: 40ch; }

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

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  left: 12px;
  top: -120px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: var(--ink);
  font: 700 13px/1 var(--font-mono);
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  transition: top 0.18s var(--ease);
}

.skip-link:focus { top: 12px; }

/* ---------- layout helpers ---------- */
.shell {
  width: var(--shell);
  margin-inline: auto;
}

.section { padding-block: clamp(48px, 7vw, 104px); }

.section--tight { padding-block: clamp(32px, 4vw, 56px); }

.hairline { border-top: 1px solid var(--hairline); }

/* ---------- typography helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.75;
}

.lede {
  max-width: 40ch;
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.75;
  color: rgba(241, 235, 223, 0.78);
}

/* ---------- paper (reversed) zone ---------- */
.paper-zone {
  background: var(--paper);
  color: var(--paper-ink);
  border-block: 1px solid var(--paper-line);
}

.paper-zone .eyebrow { color: var(--orange-deep); }

.paper-zone .lede { color: rgba(22, 16, 12, 0.74); }

.paper-zone strong { color: var(--orange-deep); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 24px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--cyan);
  font: 600 14px/1 var(--font-mono);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.16s var(--ease), color 0.16s var(--ease),
    border-color 0.16s var(--ease), transform 0.16s var(--ease);
}

.btn:hover {
  background: rgba(0, 232, 210, 0.1);
  border-color: var(--cyan);
}

.btn:active { transform: translateY(1px); }

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

.btn--signal:hover {
  background: #FF8339;
  border-color: #FF8339;
}

.btn--paper {
  color: var(--paper);
  border-color: rgba(241, 235, 223, 0.3);
}

.btn--paper:hover {
  border-color: var(--paper);
  background: rgba(241, 235, 223, 0.1);
}

/* ---------- chips ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.chip--signal {
  color: var(--orange);
  border-color: rgba(255, 106, 19, 0.45);
  background: rgba(255, 106, 19, 0.08);
}

/* ---------- breadcrumb ---------- */
.breadcrumb {
  width: var(--shell);
  margin-inline: auto;
  padding-block: 20px 0;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font: 12px/1.6 var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--muted);
}

.breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(139, 153, 165, 0.5);
}

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

.breadcrumb__list [aria-current="page"] { color: var(--cyan-soft); }

/* ---------- data table ---------- */
.data-table {
  width: 100%;
  font: 13.5px/1.5 var(--font-mono);
  letter-spacing: 0.02em;
}

.data-table th {
  padding: 10px 12px;
  text-align: left;
  background: rgba(11, 19, 26, 0.65);
  border-bottom: 1px solid var(--hairline-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--hairline);
  vertical-align: middle;
}

.data-table tbody tr:nth-child(even) { background: rgba(22, 35, 45, 0.34); }

.data-table tbody tr:hover { background: rgba(0, 232, 210, 0.07); }

/* ---------- media placeholder frames ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, var(--panel) 0%, var(--grid) 55%, var(--panel) 100%);
}

.media-frame > img,
.media-frame > svg,
.media-frame > video,
.media-frame > picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.08) saturate(0.94);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 7, 10, 0.04), rgba(5, 7, 10, 0.55));
}

.media-frame--wide { aspect-ratio: 21 / 9; }

.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame--portrait { aspect-ratio: 3 / 4; }

/* ---------- rail ---------- */
.rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 72px;
  z-index: 40;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 150px 0 30px;
  border-right: 1px solid var(--hairline);
  background: rgba(5, 7, 10, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
}

.rail__item {
  writing-mode: vertical-rl;
  font: 11px/1 var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.rail__item--on {
  color: var(--cyan);
  text-shadow: 0 0 12px rgba(0, 232, 210, 0.55);
}

@media (min-width: 1200px) {
  .rail { display: flex; }
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(5, 7, 10, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--hairline);
  color: var(--paper);
}

/* --- brand bar --- */
.brand-bar {
  overflow: hidden;
  max-height: 120px;
  border-bottom: 1px solid var(--hairline);
  background: linear-gradient(180deg, rgba(11, 19, 26, 0.95), rgba(5, 7, 10, 0));
  transition: max-height 0.3s var(--ease), opacity 0.2s var(--ease);
}

.site-header[data-scrolled] .brand-bar {
  max-height: 0;
  opacity: 0;
  border-bottom-color: transparent;
}

.brand-bar__inner {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gutter);
  min-height: 58px;
  padding-block: 8px;
}

.brand-sign {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-sign__mark {
  flex: none;
  padding: 6px 9px;
  background: var(--cyan);
  color: var(--ink);
  font: 900 18px/1 var(--font-sans);
  letter-spacing: -0.02em;
  border-radius: var(--radius);
  box-shadow: 0 0 18px rgba(0, 232, 210, 0.35);
}

.brand-sign__name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-sign__tag {
  padding-left: 12px;
  border-left: 1px solid var(--hairline);
  color: var(--muted);
  font: 12px/1 var(--font-mono);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand-bar__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font: 12px/1 var(--font-mono);
  letter-spacing: 0.04em;
}

/* --- pulse chip (details) --- */
.pulse-chip {
  position: relative;
  display: inline-block;
}

.pulse-chip__head {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 106, 19, 0.42);
  border-radius: var(--radius);
  background: rgba(255, 106, 19, 0.1);
  color: var(--orange);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: default;
  list-style: none;
  white-space: nowrap;
}

.pulse-chip__head::-webkit-details-marker { display: none; }

.pulse-chip__dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--orange);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 106, 19, 0.6); }
  50% { box-shadow: 0 0 0 6px rgba(255, 106, 19, 0); }
}

.pulse-chip__label { white-space: nowrap; }

.pulse-chip__note {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  display: none;
  padding: 9px 13px;
  border: 1px solid rgba(255, 106, 19, 0.42);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--paper);
  font: 12px/1.5 var(--font-mono);
  letter-spacing: 0.02em;
  text-transform: none;
  white-space: nowrap;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.6);
  z-index: 20;
}

.pulse-chip:hover .pulse-chip__note,
.pulse-chip:focus-within .pulse-chip__note,
.pulse-chip[open] .pulse-chip__note { display: block; }

/* --- stage chip --- */
.stage-chip {
  padding: 6px 10px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  color: var(--cyan);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* --- main nav --- */
.main-nav { position: relative; }

.main-nav__inner {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 54px;
}

.main-nav__label {
  flex: none;
  padding-right: 16px;
  border-right: 1px solid var(--hairline);
  color: var(--muted);
  font: 600 10.5px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
  max-width: none;
}

.main-nav__drawer {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  min-width: 0;
}

.main-nav__list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}

.main-nav__link {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--paper);
  font: 500 13px/1 var(--font-mono);
  letter-spacing: 0.06em;
  transition: color 0.16s var(--ease), background 0.16s var(--ease),
    border-color 0.16s var(--ease);
}

.main-nav__link:hover {
  color: var(--cyan-soft);
  background: rgba(0, 232, 210, 0.08);
  border-color: var(--hairline);
}

.main-nav__link[aria-current="page"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.main-nav__cta {
  margin-left: auto;
  flex: none;
  padding: 9px 16px;
  border-radius: var(--radius);
  background: var(--orange);
  color: var(--ink);
  font: 700 13px/1 var(--font-mono);
  letter-spacing: 0.06em;
  transition: background 0.16s var(--ease), transform 0.16s var(--ease);
}

.main-nav__cta:hover { background: #FF8339; }

.main-nav__cta:active { transform: translateY(1px); }

/* --- nav toggle --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 9px 13px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  color: var(--cyan);
  font: 700 11px/1 var(--font-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.16s var(--ease), border-color 0.16s var(--ease);
}

.nav-toggle:hover { background: rgba(0, 232, 210, 0.1); }

.nav-toggle__bars {
  display: block;
  width: 18px;
}

.nav-toggle__bars i {
  display: block;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
}

.nav-toggle__bars i + i { margin-top: 5px; }

[aria-expanded="true"] .nav-toggle__bars i:first-child {
  transform: translateY(3.25px) rotate(45deg);
}

[aria-expanded="true"] .nav-toggle__bars i:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

.nav-toggle__bars i { transition: transform 0.2s var(--ease); }

/* --- scroll progress --- */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  box-shadow: 0 0 10px rgba(0, 232, 210, 0.7);
  pointer-events: none;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: clamp(64px, 8vw, 120px);
  border-top: 1px solid var(--hairline);
  background: var(--ink);
  color: var(--paper);
}

.site-footer__inner {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(220px, 1.5fr) repeat(3, minmax(150px, 1fr));
  gap: clamp(26px, 3vw, 52px);
  padding: clamp(40px, 5vw, 76px) 0 clamp(28px, 3vw, 44px);
}

.footer-brand__mark {
  display: inline-block;
  padding: 7px 10px;
  border-radius: var(--radius);
  background: var(--cyan);
  color: var(--ink);
  font: 900 20px/1 var(--font-sans);
  letter-spacing: -0.02em;
}

.footer-brand__name {
  margin-top: 14px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  max-width: none;
}

.footer-brand__note {
  margin-top: 10px;
  max-width: 32ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.footer-col__title {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
  color: var(--cyan);
  font: 600 11px/1 var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.footer-col__list li + li { margin-top: 9px; }

.footer-col__list a {
  display: inline-block;
  border-bottom: 1px solid transparent;
  color: rgba(241, 235, 223, 0.82);
  font-size: 14.5px;
  transition: color 0.16s var(--ease), border-color 0.16s var(--ease);
}

.footer-col__list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.footer-contact li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.footer-contact li + li { margin-top: 12px; }

.tick {
  flex: none;
  padding: 2px 6px;
  border: 1px solid rgba(255, 106, 19, 0.35);
  border-radius: 2px;
  color: var(--orange);
  font: 600 10.5px/1.5 var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.footer-contact__value {
  color: rgba(241, 235, 223, 0.86);
  font: 13px/1.6 var(--font-mono);
  letter-spacing: 0.01em;
  word-break: break-word;
}

.site-footer__base {
  border-top: 1px solid var(--hairline);
  background: linear-gradient(180deg, rgba(11, 19, 26, 0.6), rgba(5, 7, 10, 1));
}

.site-footer__base-inner {
  width: var(--shell);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  padding: 18px 0 calc(18px + env(safe-area-inset-bottom));
  color: var(--muted);
  font: 12px/1.6 var(--font-mono);
  letter-spacing: 0.02em;
}

.site-footer__base-inner p {
  max-width: none;
}

/* ==========================================================================
   reveal (page-level opt-in)
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

[data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1080px) {
  .footer-brand__note { max-width: none; }
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }

  .main-nav__label { display: none; }

  .main-nav__inner { min-height: 56px; }

  .main-nav__drawer {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 80;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 78vh;
    overflow-y: auto;
    padding: 14px var(--gutter) calc(20px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--hairline-strong);
    background: var(--panel);
    box-shadow: 0 -20px 48px rgba(0, 0, 0, 0.66);
    transform: translateY(110%);
    transition: transform 0.26s var(--ease);
  }

  .main-nav__drawer[data-open] { transform: translateY(0); }

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

  .main-nav__link {
    display: block;
    padding: 15px 10px;
    border: 0;
    border-bottom: 1px solid var(--hairline);
    border-radius: 0;
    font-size: 15px;
    letter-spacing: 0.08em;
  }

  .main-nav__link:hover { background: rgba(0, 232, 210, 0.06); }

  .main-nav__link[aria-current="page"] {
    background: rgba(0, 232, 210, 0.13);
    border-color: var(--hairline);
    color: var(--cyan);
  }

  .main-nav__cta {
    margin: 18px 0 0;
    text-align: center;
  }

  .site-footer__inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px 24px;
  }

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

@media (max-width: 720px) {
  .brand-sign__tag { display: none; }

  .stage-chip { display: none; }

  .brand-bar__inner { min-height: 52px; }

  .pulse-chip__note {
    right: auto;
    left: 0;
    white-space: normal;
    min-width: 200px;
  }
}

@media (max-width: 560px) {
  .site-footer__inner { grid-template-columns: minmax(0, 1fr); }

  .site-footer__base-inner { flex-direction: column; align-items: flex-start; }

  .pulse-chip__label { display: none; }

  .data-table { font-size: 12.5px; }

  .data-table th,
  .data-table td { padding: 9px 10px; }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .pulse-chip__dot { animation: none; box-shadow: none; }

  [data-reveal],
  [data-reveal][data-revealed] {
    opacity: 1;
    transform: none;
  }
}