/* /assets/site.css */
:root {
  --navy: #0A1F44;
  --dark-navy: #050D1A;
  --card-blue: #0F2A4D;
  --neon: #39FF14;
  --gold: #FFD700;
  --soft-blue: #B0C4E4;
  --light-text: #F0F4FF;
  --cyan: #00B4FF;
  --line: #1C3A6E;
  --hover-glow: rgba(57,255,20,0.15);
  --font-head: 'Arial Black', 'SimHei', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-data: 'Roboto Mono', 'Consolas', monospace;
  --radius: 20px;
  --header-h: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--light-text);
  background-color: var(--dark-navy);
  background-image:
    linear-gradient(rgba(57,255,20,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,255,20,0.035) 1px, transparent 1px);
  background-size: 44px 44px;
}

#main-content {
  scroll-margin-top: calc(var(--header-h) + 16px);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  font-family: var(--font-head);
  font-weight: 900;
  line-height: 1.2;
  color: var(--light-text);
}

h1 {
  font-size: clamp(40px, 7vw, 64px);
}

h2 {
  font-size: clamp(28px, 4vw, 40px);
}

h3 {
  font-size: clamp(20px, 2.5vw, 28px);
}

h4 {
  font-size: 20px;
}

p {
  margin: 0 0 1em;
}

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

a {
  color: var(--cyan);
  text-decoration: none;
}

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

ul,
ol {
  margin: 0;
  padding-left: 1.25rem;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 24px;
}

.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));
}

@media (max-width: 920px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn-primary {
  background: var(--neon);
  color: var(--dark-navy);
  box-shadow: 0 0 24px rgba(57,255,20,0.2);
}

.btn-primary:hover {
  background: #7dff66;
  color: var(--dark-navy);
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(57,255,20,0.3);
}

.btn-outline {
  border-color: var(--neon);
  background: transparent;
  color: var(--neon);
}

.btn-outline:hover {
  background: var(--hover-glow);
  color: var(--neon);
  box-shadow: inset 0 0 0 1px var(--neon);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 16px 0;
  list-style: none;
  font-size: 14px;
  color: var(--soft-blue);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.breadcrumbs a {
  color: var(--soft-blue);
}

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

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

.card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(15,42,77,0.85), rgba(10,31,68,0.95));
  box-shadow: 0 12px 30px rgba(5,13,26,0.25);
}

.card-highlight {
  border-color: rgba(255,215,0,0.35);
  box-shadow: 0 0 0 1px rgba(255,215,0,0.1), 0 20px 45px rgba(5,13,26,0.4);
}

.media-frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(57,255,20,0.08), transparent 40%),
    linear-gradient(160deg, var(--card-blue), var(--dark-navy));
  color: var(--soft-blue);
}

.media-frame[data-media-label]::before {
  content: attr(data-media-label);
  padding: 0 16px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-align: center;
  text-transform: uppercase;
  opacity: 0.7;
}

.skip-link {
  position: absolute;
  top: 0;
  left: -999px;
  z-index: 3000;
  padding: 10px 18px;
  border-radius: 0 0 12px 0;
  background: var(--neon);
  color: var(--dark-navy);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  left: 0;
  color: var(--dark-navy);
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10,31,68,0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(5,13,26,0.35);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--neon) 0%, var(--cyan) 30%, var(--gold) 70%, transparent 100%);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 1280px;
  min-height: var(--header-h);
  margin-inline: auto;
  padding-inline: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  color: var(--light-text);
  text-decoration: none;
}

.brand:hover {
  color: var(--light-text);
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px 4px 14px 4px;
  background: linear-gradient(135deg, var(--neon), var(--cyan));
  color: var(--dark-navy);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 0 20px rgba(57,255,20,0.25);
}

.brand-name {
  font-family: var(--font-head);
  font-size: 20px;
  letter-spacing: 0.02em;
}

.brand-tag {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--gold);
  color: var(--dark-navy);
  font-family: var(--font-data);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  color: var(--light-text);
  cursor: pointer;
}

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

.nav-toggle-icon {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: var(--neon);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--neon);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--soft-blue);
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nav-link:hover {
  background: var(--hover-glow);
  color: var(--light-text);
  box-shadow: inset 0 0 0 1px rgba(57,255,20,0.25);
}

.nav-link[aria-current="page"] {
  background: rgba(57,255,20,0.08);
  color: var(--neon);
  box-shadow: inset 0 0 0 1px rgba(57,255,20,0.45);
}

.nav-index {
  font-family: var(--font-data);
  font-size: 10px;
  color: var(--gold);
}

.nav-label {
  display: inline-block;
}

.nav-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 7px;
  border: 1px solid rgba(255,215,0,0.35);
  border-radius: 999px;
  background: rgba(255,215,0,0.08);
  color: var(--gold);
  font-family: var(--font-data);
  font-size: 10px;
  line-height: 1;
  white-space: nowrap;
}

.nav-status.is-new {
  border-color: rgba(57,255,20,0.4);
  background: rgba(57,255,20,0.08);
  color: var(--neon);
}

.nav-status.is-live::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
}

.header-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-shrink: 0;
  padding: 9px 18px;
  border: 1px solid var(--neon);
  border-radius: 999px;
  background: rgba(57,255,20,0.04);
  color: var(--neon);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.header-login:hover {
  background: var(--hover-glow);
  color: var(--neon);
  box-shadow: 0 0 24px rgba(57,255,20,0.18);
}

@media (max-width: 1280px) {
  .header-inner {
    gap: 16px;
  }
}

@media (max-width: 1200px) {
  .brand-name {
    font-size: 18px;
  }

  .nav-index {
    display: none;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }

  .nav-status {
    padding: 3px 6px;
  }

  .header-login {
    padding: 8px 14px;
    font-size: 13px;
  }
}

@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-left: 0;
    padding: 16px 24px 20px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(180deg, rgba(10,31,68,0.98), rgba(5,13,26,0.98));
    box-shadow: 0 20px 40px rgba(5,13,26,0.5);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

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

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    justify-content: flex-start;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 14px;
  }

  .nav-index {
    display: inline-block;
  }

  .header-login {
    justify-content: center;
    width: 100%;
    padding: 12px 16px;
  }
}

.footer {
  padding: 64px 0 28px;
  border-top: 3px solid var(--gold);
  background: var(--dark-navy);
  color: var(--soft-blue);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 48px;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 24px;
}

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

.footer-about {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--light-text);
  font-family: var(--font-head);
  font-size: 22px;
  text-decoration: none;
}

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

.footer-brand .brand-mark {
  width: 38px;
  height: 38px;
  font-size: 14px;
}

.footer-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--soft-blue);
}

.footer-title {
  margin: 0 0 16px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.footer-links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-link {
  display: inline-block;
  color: var(--soft-blue);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-link:hover {
  color: var(--neon);
  padding-left: 4px;
}

.footer-contact {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.footer-contact-label {
  flex: 0 0 auto;
  min-width: 44px;
  color: var(--gold);
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.8;
}

.footer-contact-item span:last-child {
  word-break: break-word;
}

.trust-statement {
  grid-column: 1 / -1;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--soft-blue);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  grid-column: 1 / -1;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--soft-blue);
}

@media (max-width: 920px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

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

  .trust-statement,
  .footer-meta {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .footer-inner {
    grid-template-columns: 1fr;
    padding-inline: 20px;
  }

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
  }
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1500;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--neon), var(--gold));
  box-shadow: 0 0 12px rgba(57,255,20,0.6);
  pointer-events: none;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link:focus-visible {
  outline-color: var(--gold);
}

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

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

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

  .scroll-progress {
    display: none;
  }
}