:root {
  --deep-blue: #0A1128;
  --volt-purple: #7B2FBE;
  --neon-green: #39FF14;
  --warm-orange: #FF6B35;
  --light-gray: #F4F6FA;
  --dark-gray: #1F2430;
  --mid-gray: #5A6275;
  --white: #FFFFFF;
  --glass-dark: rgba(10, 17, 40, 0.62);
  --purple-gradient: linear-gradient(135deg, #7B2FBE 0%, #0A1128 100%);
  --font-heading: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", Consolas, monospace;
  --container-width: 1280px;
  --header-height: 72px;
  --radius: 10px;
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background: var(--light-gray);
  color: var(--dark-gray);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeSpeed;
}

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

ul,
ol {
  list-style: none;
}

a {
  color: var(--volt-purple);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--warm-orange);
}

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

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

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

::selection {
  background: var(--volt-purple);
  color: #fff;
}

#main-content {
  min-height: 60vh;
  scroll-margin-top: var(--header-height);
}

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

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--neon-green);
  box-shadow: 0 0 12px rgba(57, 255, 20, 0.45);
  z-index: 300;
  pointer-events: none;
  transition: width 60ms linear;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 1000;
  background: var(--warm-orange);
  color: var(--deep-blue);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.6rem 1.1rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top 200ms ease;
}

.skip-link:focus-visible {
  top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 17, 40, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(123, 47, 190, 0.35);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(123, 47, 190, 0.16) 0%, transparent 35%, transparent 65%, rgba(57, 255, 20, 0.05) 100%);
}

.site-header.is-scrolled {
  background: rgba(10, 17, 40, 0.88);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
}

.header-shell {
  position: relative;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-track {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  flex-shrink: 0;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--neon-green);
  border: 1px solid rgba(57, 255, 20, 0.42);
  background: linear-gradient(135deg, rgba(123, 47, 190, 0.22), transparent);
  border-radius: 4px;
  padding: 0.2rem 0.35rem;
  transform: skewX(-8deg);
  white-space: nowrap;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.header-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.5);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  padding-left: 0.8rem;
  white-space: nowrap;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 8px rgba(57, 255, 20, 0.7);
  flex-shrink: 0;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.55rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  border-radius: 6px;
  transition: color 200ms ease, background 200ms ease;
}

.nav-link:hover {
  color: var(--white);
  background: rgba(123, 47, 190, 0.16);
}

.nav-link[aria-current="page"] {
  color: var(--warm-orange);
  font-weight: 600;
  background: rgba(255, 107, 53, 0.08);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: -2px;
  height: 2px;
  background: var(--warm-orange);
  border-radius: 2px;
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--neon-green);
  opacity: 0.75;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 200ms ease, color 200ms ease;
}

.search-btn:hover {
  border-color: var(--neon-green);
  color: var(--neon-green);
}

.search-icon {
  flex-shrink: 0;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.05rem;
  border-radius: 999px;
  background: var(--warm-orange);
  color: var(--deep-blue);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 2px 12px rgba(255, 107, 53, 0.3);
  transition: transform 200ms ease, background 200ms ease, box-shadow 200ms ease;
}

.cta-btn:hover {
  background: #ff7f4d;
  color: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.cta-text-short {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  gap: 3px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 6px;
}

.toggle-bar {
  display: block;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--white);
  transition: transform 250ms ease, opacity 200ms ease;
}

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.site-footer {
  position: relative;
  background: var(--deep-blue);
  color: rgba(255, 255, 255, 0.75);
  margin-top: 4rem;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--volt-purple) 0%, var(--volt-purple) 35%, var(--neon-green) 50%, transparent 100%);
}

.footer-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 2.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 2.5rem;
}

.footer-brand {
  max-width: 340px;
}

.footer-brand .brand-logo {
  margin-bottom: 1rem;
}

.footer-slogan {
  font-size: 0.9rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1rem;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-heading {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.68);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 200ms ease, padding-left 200ms ease;
}

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

.footer-contact .footer-list {
  gap: 0.55rem;
}

.contact-item {
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.68);
  word-break: break-word;
}

.contact-label {
  display: inline-block;
  min-width: 2.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--volt-purple);
  letter-spacing: 0.06em;
}

.contact-link-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding-top: 0.35rem;
}

.contact-link-line a {
  font-size: 0.85rem;
}

.link-sep {
  color: rgba(255, 255, 255, 0.3);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-bottom-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.5);
}

.copyright,
.record,
.footer-status {
  margin: 0;
}

.footer-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: rgba(255, 255, 255, 0.6);
}

.section-shell {
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section-dark {
  background:
    radial-gradient(ellipse at 85% 15%, rgba(123, 47, 190, 0.3), transparent 60%),
    radial-gradient(ellipse at 10% 90%, rgba(57, 255, 20, 0.07), transparent 50%),
    var(--deep-blue);
  color: rgba(255, 255, 255, 0.75);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--white);
}

.section-dark a {
  color: var(--neon-green);
}

.section-dark a:hover {
  color: var(--warm-orange);
}

.page-hero {
  padding: clamp(3rem, 8vh, 6rem) 0;
}

.page-hero--dark {
  background: var(--deep-blue);
  color: rgba(255, 255, 255, 0.8);
}

.page-hero--dark h1,
.page-hero--dark h2,
.page-hero--dark h3 {
  color: var(--white);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem;
  padding-block: 1.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mid-gray);
}

.breadcrumb a {
  color: var(--volt-purple);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.crumb-sep {
  color: rgba(90, 98, 117, 0.55);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  background: var(--warm-orange);
  color: var(--deep-blue);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.25);
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.btn-primary:hover {
  color: var(--deep-blue);
  transform: translateY(-2px);
  box-shadow: 0 7px 22px rgba(255, 107, 53, 0.35);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: transparent;
  color: var(--volt-purple);
  border: 1px solid var(--volt-purple);
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 200ms ease, color 200ms ease;
}

.btn-ghost:hover {
  background: rgba(123, 47, 190, 0.08);
  color: var(--volt-purple);
}

.section-dark .btn-ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}

.section-dark .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--white);
  border: 1px solid #E3E8F0;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 10px rgba(10, 17, 40, 0.03);
  transition: box-shadow 250ms ease, transform 250ms ease;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(10, 17, 40, 0.08);
  transform: translateY(-3px);
}

.media-frame {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #1b2547, #0A1128);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(123, 47, 190, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 47, 190, 0.16) 1px, transparent 1px);
  background-size: 26px 26px;
}

.media-frame::after {
  content: "JY // VISUAL_FIELD";
  position: absolute;
  right: 0.8rem;
  bottom: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(57, 255, 20, 0.6);
  letter-spacing: 0.1em;
}

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

.stat-badge {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.7rem 1.1rem;
  background: var(--deep-blue);
  border: 1px solid rgba(123, 47, 190, 0.42);
  border-radius: 12px;
  color: var(--white);
}

.stat-number {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--neon-green);
  line-height: 1.1;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: rgba(123, 47, 190, 0.1);
  border: 1px solid rgba(123, 47, 190, 0.3);
  color: var(--volt-purple);
  white-space: nowrap;
}

.data-panel {
  font-family: var(--font-mono);
  background: var(--deep-blue);
  border: 1px solid rgba(123, 47, 190, 0.35);
  border-radius: 12px;
  padding: 1.25rem;
}

.data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.data-row:last-child {
  border-bottom: none;
}

.data-key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--mid-gray);
  letter-spacing: 0.03em;
}

.data-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neon-green);
}

.meta-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mid-gray);
  letter-spacing: 0.02em;
}

.divider-line {
  height: 2px;
  margin: 2rem 0;
  background: linear-gradient(90deg, transparent 0%, var(--volt-purple) 50%, transparent 100%);
  transform: skewX(-30deg);
}

@media (max-width: 1023px) {
  :root {
    --header-height: 64px;
  }

  .header-shell {
    padding-inline: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-panel {
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: min(320px, 100%);
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    background: rgba(10, 17, 40, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid rgba(123, 47, 190, 0.5);
    border-bottom: 1px solid rgba(123, 47, 190, 0.5);
    border-radius: 0 0 0 12px;
    padding: 1.25rem 1.25rem 1.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateX(24px);
    transition: opacity 200ms ease, transform 240ms ease, visibility 200ms;
    box-shadow: -12px 20px 44px rgba(0, 0, 0, 0.45);
    z-index: 99;
  }

  .nav-panel[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }

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

  .nav-link {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.75rem;
    color: rgba(255, 255, 255, 0.82);
  }

  .nav-link:hover {
    background: rgba(123, 47, 190, 0.2);
  }

  .nav-link[aria-current="page"] {
    background: rgba(255, 107, 53, 0.12);
    color: var(--warm-orange);
  }

  .nav-link[aria-current="page"]::after {
    display: none;
  }

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

  .search-btn,
  .cta-btn {
    justify-content: center;
    padding-block: 0.6rem;
  }

  .cta-text {
    display: none;
  }

  .cta-text-short {
    display: inline;
  }

  .brand-mark {
    font-size: 0.6rem;
  }

  .brand-name {
    font-size: 1rem;
  }
}

@media (max-width: 768px) {
  .header-meta {
    display: none;
  }

  .footer-shell {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-top: 2.5rem;
  }

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

@media (max-width: 480px) {
  .brand-name {
    font-size: 0.95rem;
  }

  .nav-toggle {
    width: 2.1rem;
    height: 2.1rem;
  }
}

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

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

  .scroll-progress {
    transition: none;
  }
}