:root {
  --deep-space: #0A0710;
  --dark-plum: #130A1C;
  --velvet-panel: #1D102B;
  --peach-glow: #FF9EB8;
  --neon-violet: #9D5CE8;
  --gold-silk: #F0C57C;
  --text-primary: #FFF3F6;
  --text-secondary: #C2B0C5;
  --text-muted: #8F7E98;
  --hairline: #3A2540;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --container-max: 1200px;
  --radius-card: 20px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--deep-space);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(157, 92, 232, 0.16), transparent 46%),
    radial-gradient(ellipse at 8% 88%, rgba(255, 158, 184, 0.12), transparent 42%),
    radial-gradient(ellipse at 50% 50%, rgba(29, 16, 43, 0), transparent 60%);
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

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

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

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

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

::selection {
  background: var(--peach-glow);
  color: var(--deep-space);
}

:focus-visible {
  outline: 2px solid var(--peach-glow);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

.section + .section {
  padding-top: 0;
}

.section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 40px;
}

.page-hero {
  padding: 80px 0 48px;
}

.display-title {
  font-family: var(--font-serif);
  font-size: clamp(44px, 8vw, 96px);
  line-height: 1.08;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}

.display-subtitle {
  font-family: var(--font-sans);
  font-size: 16px;
  letter-spacing: 0.24em;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.lede {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  max-width: 56em;
}

.divider {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--hairline), rgba(255, 158, 184, 0.5), rgba(157, 92, 232, 0.5), var(--hairline));
  margin: 48px 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 100px;
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.btn-primary {
  color: #0A0710;
  background: linear-gradient(135deg, var(--peach-glow), var(--neon-violet));
  box-shadow: 0 10px 30px rgba(157, 92, 232, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(255, 158, 184, 0.35);
}

.btn-secondary {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
  border-color: var(--hairline);
}

.btn-secondary:hover {
  border-color: var(--neon-violet);
  background: rgba(157, 92, 232, 0.12);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(157, 92, 232, 0.12);
  border: 1px solid rgba(157, 92, 232, 0.35);
  color: var(--neon-violet);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}

.tag:hover {
  border-color: var(--peach-glow);
  color: var(--peach-glow);
}

.index-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--gold-silk);
}

.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));
}

.card {
  background: var(--velvet-panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(255, 158, 184, 0.35);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.35), 0 0 60px rgba(157, 92, 232, 0.15);
}

.card > * + * {
  margin-top: 12px;
}

.prose {
  max-width: 68ch;
}

.prose p {
  margin: 1em 0;
  color: var(--text-secondary);
}

.prose h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  margin-top: 2em;
  color: var(--text-primary);
}

.prose h3 {
  font-family: var(--font-sans);
  font-size: 18px;
  margin-top: 1.5em;
  color: var(--peach-glow);
}

.prose a {
  color: var(--peach-glow);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 32px;
}

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

.breadcrumb a:hover {
  color: var(--peach-glow);
}

.media-frame {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: linear-gradient(145deg, rgba(157, 92, 232, 0.16), rgba(255, 158, 184, 0.08));
  aspect-ratio: 16 / 9;
  min-height: 200px;
}

.media-frame[data-ratio="portrait"] {
  aspect-ratio: 3 / 4;
}

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

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  box-shadow: inset 0 0 0 1px rgba(255, 158, 184, 0.1);
  pointer-events: none;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 32px 0;
}

[data-filter-trigger] {
  cursor: pointer;
  border: 1px solid var(--hairline);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  border-radius: 100px;
  padding: 8px 18px;
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.12em;
  transition: border-color 0.3s, background 0.3s, color 0.3s, box-shadow 0.3s;
}

[data-filter-trigger]:hover {
  border-color: var(--peach-glow);
  color: var(--text-primary);
}

[data-filter-trigger].active {
  background: linear-gradient(135deg, var(--peach-glow), var(--neon-violet));
  border-color: transparent;
  color: #0A0710;
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(255, 158, 184, 0.2);
}

[hidden] {
  display: none !important;
}

.timeline {
  position: relative;
  margin: 48px 0;
  padding-left: 24px;
  border-left: 1px solid var(--hairline);
}

.timeline-item {
  position: relative;
  padding: 0 0 32px 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--peach-glow);
  box-shadow: 0 0 16px rgba(255, 158, 184, 0.6);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 12px 24px;
  background: var(--velvet-panel);
  border: 1px solid var(--peach-glow);
  border-radius: 100px;
  color: var(--text-primary);
  text-decoration: none;
  transition: top 0.3s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 300;
  background: linear-gradient(90deg, var(--peach-glow), var(--neon-violet), var(--gold-silk));
  box-shadow: 0 0 20px rgba(255, 158, 184, 0.5);
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 24px 8px;
  pointer-events: none;
}

.nav-capsule {
  position: relative;
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 12px 10px 24px;
  border: 1px solid rgba(58, 37, 64, 0.8);
  border-radius: 100px;
  background: linear-gradient(135deg, rgba(29, 16, 43, 0.86), rgba(10, 7, 16, 0.72));
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
}

.nav-capsule:hover {
  border-color: rgba(157, 92, 232, 0.5);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.45), 0 0 80px rgba(157, 92, 232, 0.08);
}

.nav-capsule .brand {
  border-right: 1px solid var(--hairline);
  padding-right: 20px;
  margin-right: 8px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--peach-glow);
  background: linear-gradient(120deg, #FFD7E5 0%, var(--peach-glow) 40%, var(--gold-silk) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.nav-link {
  display: block;
  padding: 8px 12px;
  border-radius: 100px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.14em;
  white-space: nowrap;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

.nav-link:hover {
  background: rgba(255, 158, 184, 0.08);
  color: var(--text-primary);
}

.nav-link[aria-current="page"] {
  color: var(--peach-glow);
  background: rgba(255, 158, 184, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 158, 184, 0.25);
}

.nav-cta {
  margin-left: auto;
  padding: 10px 20px;
  font-size: 13px;
}

.nav-cta::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-silk);
  box-shadow: 0 0 10px var(--peach-glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 44px;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 100px;
  border: 1px solid var(--hairline);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.nav-toggle-label {
  font-size: 12px;
  letter-spacing: 0.16em;
}

.nav-toggle-bar {
  width: 16px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), background 0.3s;
}

.nav-toggle:hover .nav-toggle-bar {
  background: var(--peach-glow);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 80px;
  background: var(--dark-plum);
  border-top: 1px solid var(--hairline);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 158, 184, 0.8), rgba(157, 92, 232, 0.8), rgba(240, 197, 124, 0.8), transparent);
}

.site-footer::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -120px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(157, 92, 232, 0.2), transparent 70%);
  pointer-events: none;
}

.footer-inner {
  padding-top: 72px;
  padding-bottom: 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-about {
  font-size: 14px;
  color: var(--text-secondary);
  margin: 12px 0;
}

.footer-trust {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 42em;
  border-left: 2px solid var(--neon-violet);
  padding-left: 12px;
}

.footer-title {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold-silk);
  margin: 0 0 16px;
}

.footer-link-list li {
  margin-bottom: 10px;
}

.footer-link-list a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-link-list a:hover {
  color: var(--peach-glow);
}

.footer-contact-list li {
  font-size: 14px;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.footer-contact-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.contact-label {
  flex: none;
  min-width: 36px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--hairline);
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.footer-copy,
.footer-icp {
  margin: 0;
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

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

@media (max-width: 1023px) {
  .site-header {
    padding: 12px 16px;
  }

  .nav-capsule {
    max-width: 100%;
    border-radius: 24px;
    padding: 8px 12px 8px 18px;
  }

  .nav-capsule .brand {
    padding-right: 12px;
  }

  .brand-name {
    font-size: 18px;
  }

  .brand-sub {
    font-size: 9px;
    letter-spacing: 0.14em;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(29, 16, 43, 0.96);
    border: 1px solid var(--hairline);
    border-radius: 20px;
    padding: 16px;
    gap: 8px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  }

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

  .nav-list {
    flex-direction: column;
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: 14px;
  }

  .nav-cta {
    width: 100%;
    justify-content: center;
    margin: 4px 0 0;
  }

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

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

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

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

@media (max-width: 599px) {
  .page-hero {
    padding: 48px 0 32px;
  }

  .section {
    padding: 64px 0;
  }

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

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

  .footer-inner {
    padding-top: 48px;
  }

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

@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;
  }

  .js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}