/* ==========================================
   博澳速讯 / Site Kit
   未来主义运动数据监控台
   ========================================== */

/* ---------- Reset & Variables ---------- */
:root {
  --c-navy: #0A1E3D;
  --c-navy-deep: #0D2B50;
  --c-green: #39FF14;
  --c-gray: #8A9BA8;
  --c-cream: #F5F0E6;
  --c-ink: #2B1E16;
  --c-red: #FF4A1C;
  --c-pale: #D0DDE8;
  --font-head: "Arial Black", "Impact", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Courier New", "Roboto Mono", "PingFang SC", "Microsoft YaHei", monospace;
  --max-w: 1280px;
  --shadow-hard: 6px 6px 0 rgba(0, 0, 0, 0.35);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

[hidden] {
  display: none !important;
}

body {
  font-family: var(--font-body);
  background: var(--c-navy);
  color: var(--c-cream);
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol {
  list-style: none;
}

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

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

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--c-green);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px rgba(57, 255, 20, 0.2);
}

::selection {
  background: var(--c-green);
  color: var(--c-navy);
}

/* ---------- Skip Link ---------- */
.skip-link {
  position: fixed;
  top: 12px;
  left: 16px;
  z-index: 500;
  background: var(--c-green);
  color: var(--c-navy);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 900;
  padding: 10px 16px;
  transform: translateY(-300%);
  transition: transform 0.2s ease;
}

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

/* ---------- Scroll Progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-green), var(--c-pale));
  z-index: 600;
  pointer-events: none;
}

/* ---------- Header ---------- */
.site-header {
  position: relative;
  z-index: 100;
  background: linear-gradient(135deg, var(--c-navy) 0%, var(--c-navy-deep) 100%);
  border-bottom: 2px solid var(--c-green);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(138, 155, 168, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 155, 168, 0.12) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}

.header-shell {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin-inline: auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
}

/* ---------- Brand ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand-mark {
  position: relative;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--c-navy-deep) 40%, var(--c-navy));
  border: 2px solid var(--c-green);
  transform: skewX(-8deg);
  box-shadow: 3px 3px 0 rgba(57, 255, 20, 0.22);
}

.brand-cross {
  position: absolute;
  inset: 0;
}

.brand-cross::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 2px;
  background: var(--c-green);
  transform: translateX(-50%);
}

.brand-cross::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 5px;
  right: 5px;
  height: 2px;
  background: var(--c-green);
  transform: translateY(-50%);
}

.brand-name {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--c-cream);
  transform: skewX(-3deg);
}

.brand-code {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-gray);
  transform: skewX(-3deg);
  border-left: 1px solid var(--c-gray);
  padding-left: 10px;
}

.brand--footer {
  margin-bottom: 12px;
}

/* ---------- Navigation ---------- */
.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list a {
  display: block;
  position: relative;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--c-pale);
  letter-spacing: 0.03em;
  transform: skewX(-3deg);
  border: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
}

.nav-list a:hover {
  color: var(--c-green);
  border-color: var(--c-gray);
}

.nav-list a[aria-current="page"] {
  color: var(--c-green);
  border-color: var(--c-green);
  background: rgba(57, 255, 20, 0.08);
  font-weight: bold;
}

.nav-list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 4px;
  height: 2px;
  background: var(--c-green);
}

/* ---------- Nav Toggle ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 48px;
  height: 48px;
  padding: 8px;
  border: 1px solid var(--c-gray);
  background: transparent;
  transition: border-color 0.18s;
}

.nav-toggle:hover {
  border-color: var(--c-green);
}

.toggle-box {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 22px;
}

.toggle-line {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-green);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.toggle-text {
  display: block;
  font-size: 10px;
  color: var(--c-gray);
  letter-spacing: 0.1em;
}

.nav-toggle[aria-expanded="true"] .toggle-box .toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .toggle-box .toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .toggle-box .toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Nav Backdrop ---------- */
.nav-backdrop {
  display: none;
}

/* ---------- Header CTA ---------- */
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-weight: bold;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-navy);
  background: var(--c-green);
  border: 2px solid var(--c-green);
  padding: 10px 16px;
  transform: skewX(-3deg);
  box-shadow: 4px 4px 0 rgba(57, 255, 20, 0.15);
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}

.header-cta::before {
  content: "// ";
}

.header-cta:hover {
  background: transparent;
  color: var(--c-green);
  box-shadow: 0 0 18px rgba(57, 255, 20, 0.35);
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  background: linear-gradient(180deg, var(--c-navy) 0%, #071530 100%);
  border-top: 3px solid var(--c-green);
}

.site-footer::before {
  content: "";
  display: block;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--c-green) 0 14px, var(--c-navy-deep) 14px 28px);
}

.footer-top {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 40px;
}

.footer-brand .brand-name {
  color: var(--c-cream);
  font-size: 24px;
}

.footer-trust {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-gray);
  max-width: 30em;
}

.footer-heading {
  font-family: var(--font-head);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--c-cream);
  margin-bottom: 16px;
  text-transform: uppercase;
}

.footer-heading::before {
  content: attr(data-index) " / ";
  color: var(--c-green);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
}

.footer-nav ul,
.footer-legal ul {
  display: grid;
  gap: 10px;
}

.footer-nav a,
.footer-legal a {
  font-size: 14px;
  color: var(--c-pale);
  padding: 2px 0;
  border-bottom: 1px solid transparent;
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: var(--c-green);
  border-bottom-color: var(--c-green);
}

.footer-contact p {
  font-size: 13px;
  color: var(--c-pale);
  line-height: 1.8;
  margin-bottom: 6px;
}

.footer-bottom {
  border-top: 1px solid rgba(138, 155, 168, 0.25);
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 18px 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  font-size: 12px;
  color: var(--c-gray);
}

.footer-bottom a {
  color: var(--c-pale);
}

.footer-bottom a:hover {
  color: var(--c-green);
}

/* ---------- Body, Layout, Typography ---------- */
.page-body {
  min-height: 60vh;
}

.container {
  width: min(var(--max-w), 92vw);
  margin-inline: auto;
}

.section {
  padding: 72px 24px;
}

.section--cream {
  background: var(--c-cream);
  color: var(--c-ink);
}

.section--cream .headline,
.section--cream .subhead {
  color: var(--c-ink);
}

.section--cream .section-title {
  color: var(--c-navy);
}

.section--cream .breadcrumbs {
  color: var(--c-ink);
}

.section--cream .breadcrumbs a {
  color: var(--c-navy);
}

.section--cream .breadcrumbs a:hover {
  color: var(--c-red);
}

.section--cream .breadcrumbs [aria-current="page"] {
  color: var(--c-red);
}

.headline {
  font-family: var(--font-head);
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.1;
  font-weight: 900;
  transform: skewX(-3deg);
  text-transform: uppercase;
}

.subhead {
  font-family: var(--font-head);
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.3;
  transform: skewX(-3deg);
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 900;
  transform: skewX(-3deg);
  color: var(--c-cream);
  position: relative;
  padding-left: 24px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 6px;
  background: var(--c-green);
}

.section--cream .section-title::before {
  background: var(--c-red);
}

.section-title[data-index]::after {
  content: " / " attr(data-index);
  font-family: var(--font-body);
  font-size: 0.5em;
  color: var(--c-gray);
  font-weight: 400;
}

.data-text {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--c-green);
  letter-spacing: 0.05em;
}

.meta-text {
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--c-gray);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--c-gray);
  padding: 20px 0;
}

.breadcrumbs ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--c-gray);
  margin-right: 12px;
}

.breadcrumbs a {
  color: var(--c-pale);
}

.breadcrumbs a:hover {
  color: var(--c-green);
}

.breadcrumbs [aria-current="page"] {
  color: var(--c-green);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: bold;
  font-size: 14px;
  padding: 12px 24px;
  border: 2px solid var(--c-green);
  color: var(--c-green);
  background: transparent;
  transform: skewX(-3deg);
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}

.btn:hover {
  background: var(--c-green);
  color: var(--c-navy);
  box-shadow: 0 0 20px rgba(57, 255, 20, 0.25);
}

.btn--solid {
  background: var(--c-green);
  color: var(--c-navy);
}

.btn--solid:hover {
  background: transparent;
  color: var(--c-green);
}

.btn--ghost {
  border-color: var(--c-gray);
  color: var(--c-pale);
}

.btn--ghost:hover {
  background: var(--c-gray);
  color: var(--c-navy);
  border-color: var(--c-gray);
  box-shadow: none;
}

/* ---------- Panels ---------- */
.data-panel {
  position: relative;
  background: var(--c-navy-deep);
  border: 2px solid var(--c-gray);
  box-shadow: var(--shadow-hard);
  padding: 24px;
}

.data-panel::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 48px;
  height: 2px;
  background: var(--c-green);
}

.panel--diag {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), 0 100%);
  padding-bottom: 36px;
}

.panel--cream {
  background: var(--c-cream);
  color: var(--c-ink);
  border-color: var(--c-ink);
}

.panel-title {
  font-family: var(--font-head);
  font-size: 18px;
  transform: skewX(-3deg);
  margin-bottom: 12px;
}

/* ---------- Grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ---------- Frames ---------- */
.frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--c-navy-deep), var(--c-navy));
  border: 2px solid var(--c-gray);
  overflow: hidden;
}

.frame--wide {
  aspect-ratio: 16 / 9;
}

.frame--data {
  aspect-ratio: 3 / 2;
}

.frame::before {
  content: attr(data-caption);
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 2;
  font-family: var(--font-body);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--c-green);
  background: rgba(10, 30, 61, 0.8);
  padding: 2px 8px;
  text-transform: uppercase;
}

.frame::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: repeating-linear-gradient(0deg, transparent 0 6px, rgba(57, 255, 20, 0.06) 6px 7px);
  pointer-events: none;
}

.frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Tags / Chips / Status ---------- */
.tag {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-green);
  border: 1px solid var(--c-gray);
  background: rgba(57, 255, 20, 0.06);
  padding: 4px 10px;
  transform: skewX(-3deg);
  text-transform: uppercase;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-body);
  font-size: 12px;
  color: var(--c-pale);
  border: 1px solid var(--c-gray);
  padding: 6px 12px;
  background: var(--c-navy-deep);
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-gray);
}

.status-dot--live {
  background: var(--c-green);
  box-shadow: 0 0 8px var(--c-green);
  animation: status-pulse 1.6s ease infinite;
}

.status-dot--alert {
  background: var(--c-red);
}

@keyframes status-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* ---------- Ticker ---------- */
.ticker {
  display: flex;
  align-items: center;
  gap: 18px;
  overflow: hidden;
  border-block: 1px solid var(--c-gray);
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--c-pale);
  white-space: nowrap;
}

.ticker::before {
  content: "// LIVE-DATA";
  flex: 0 0 auto;
  color: var(--c-green);
  font-weight: bold;
  letter-spacing: 0.08em;
}

.ticker .ticker-sep {
  color: var(--c-green);
  margin: 0 18px;
}

/* ---------- Decorative ---------- */
.accent-line {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--c-green) 0 60px, var(--c-gray) 60px 100%);
  margin: 16px 0;
}

.num-badge {
  display: inline-grid;
  place-items: center;
  min-width: 48px;
  height: 48px;
  padding: 0 8px;
  border: 2px solid var(--c-green);
  background: var(--c-navy);
  color: var(--c-green);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 20px;
  transform: skewX(-6deg);
  box-shadow: 4px 4px 0 rgba(57, 255, 20, 0.2);
}

/* ---------- Filter Protocol ---------- */
[data-filter-group] {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

[data-filter-trigger] {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  padding: 8px 16px;
  border: 1px solid var(--c-gray);
  background: transparent;
  color: var(--c-pale);
  transform: skewX(-3deg);
  transition: border-color 0.18s, color 0.18s, background 0.18s;
}

[data-filter-trigger]:hover {
  color: var(--c-green);
  border-color: var(--c-green);
}

[data-filter-trigger].is-active {
  background: var(--c-green);
  border-color: var(--c-green);
  color: var(--c-navy);
  font-weight: bold;
}

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

/* ---------- Reveal Protocol ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px) skewX(-2deg);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

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

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(340px, 84vw);
    background: linear-gradient(180deg, var(--c-navy-deep), var(--c-navy));
    border-left: 2px solid var(--c-green);
    padding: 88px 24px 32px;
    z-index: 120;
    transform: translateX(102%);
    transition: transform 0.28s ease, visibility 0.28s;
    visibility: hidden;
    overflow-y: auto;
  }

  .site-nav[data-open] {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-list a {
    font-size: 18px;
    padding: 14px 12px;
    border: none;
    border-bottom: 1px solid rgba(138, 155, 168, 0.2);
  }

  .nav-list a:hover {
    border-bottom-color: var(--c-green);
  }

  .nav-list a[aria-current="page"] {
    background: rgba(57, 255, 20, 0.08);
  }

  .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(5, 13, 26, 0.7);
    z-index: 110;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s;
  }

  .nav-backdrop.is-visible {
    opacity: 1;
    visibility: visible;
  }

  body.nav-locked {
    overflow: hidden;
  }

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

  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .header-shell {
    padding: 12px 16px;
  }

  .brand-code {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .section {
    padding: 48px 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 40px 16px 28px;
  }

  .footer-bottom {
    padding: 14px 16px;
    flex-direction: column;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}