:root {
  --space-deep: #0B1E3B;
  --space-electric: #6D28D9;
  --space-ultra: #4C1D95;
  --space-gold: #F2B705;
  --space-cream: #F5F0E1;
  --space-ink: #2D1B0E;
  --space-white: #FFFFFF;
  --space-goldgray: #D4C4AD;
  --space-success: #34D399;
  --space-warn: #F87171;
  --font-primary: "Noto Sans SC", "Alibaba PuHuiTi", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Serif SC", "Source Han Serif", Georgia, serif;
  --text-headline: clamp(1.75rem, 4vw, 2.75rem);
  --text-title: clamp(1.35rem, 2.4vw, 2rem);
  --text-subtitle: clamp(1.1rem, 1.6vw, 1.375rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --space-unit: 1rem;
  --container-width: 1280px;
  --radius-small: 4px;
  --radius-medium: 10px;
  --shadow-soft: 0 8px 24px rgba(11, 30, 59, 0.08);
  --shadow-float: 0 18px 40px rgba(11, 30, 59, 0.22);
  --transition-base: 0.3s ease;
}

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

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--space-ink);
  background: var(--space-cream);
}

h1, h2, h3, h4 {
  font-family: var(--font-primary);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
}

h1 {
  font-size: var(--text-headline);
  text-shadow: 0 0 24px rgba(109, 40, 217, 0.35);
}

h2 {
  font-size: var(--text-title);
}

h3 {
  font-size: var(--text-subtitle);
}

p {
  margin: 0 0 1.25rem;
}

a {
  color: var(--space-electric);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--space-ultra);
}

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

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

button {
  font-family: var(--font-primary);
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 3px solid var(--space-gold);
  outline-offset: 4px;
  border-radius: var(--radius-small);
}

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

.skip-link {
  position: fixed;
  top: -4rem;
  left: 1rem;
  z-index: 1200;
  padding: 0.75rem 1.5rem;
  background: var(--space-gold);
  color: var(--space-ink);
  font-family: var(--font-primary);
  font-weight: 700;
  border-radius: 0 0 var(--radius-medium) var(--radius-medium);
  transition: top var(--transition-base);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1100;
  background: var(--space-deep);
  color: var(--space-white);
  border-bottom: 1px solid rgba(109, 40, 217, 0.5);
  box-shadow: 0 4px 20px rgba(11, 30, 59, 0.3);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.75rem;
}

.brand-lockup {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  color: var(--space-white);
}

.brand-lockup:hover {
  color: var(--space-gold);
}

.brand-name {
  font-family: var(--font-primary);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--space-gold);
  text-shadow: 0 0 18px rgba(242, 183, 5, 0.35);
}

.brand-sub {
  font-family: var(--font-primary);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--space-goldgray);
  border-left: 2px solid var(--space-electric);
  padding-left: 0.75rem;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-small);
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--space-white);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

[data-open] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

[data-open] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

[data-open] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  position: relative;
  padding: 0.6rem 0.9rem;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-small);
  transition: background var(--transition-base), color var(--transition-base);
}

.nav-link::before {
  content: attr(data-index);
  margin-right: 0.35rem;
  color: var(--space-gold);
  font-size: 0.7rem;
  font-weight: 500;
}

.nav-link:hover {
  background: rgba(109, 40, 217, 0.25);
  color: var(--space-white);
}

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

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--space-gold);
  border-radius: 2px;
}

.site-footer {
  background: var(--space-deep);
  color: var(--space-white);
  margin-top: 5rem;
  padding-top: 3.5rem;
  border-top: 4px solid var(--space-electric);
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--space-electric) 0%, var(--space-gold) 100%);
  opacity: 0.7;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr;
  gap: 2.5rem;
}

.footer-col-info {
  padding-right: 2rem;
}

.footer-brand {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--space-gold);
  margin-bottom: 0.6rem;
}

.footer-tag {
  color: var(--space-goldgray);
  font-size: var(--text-small);
  line-height: 1.7;
  margin-bottom: 0;
}

.footer-heading {
  font-family: var(--font-primary);
  font-size: var(--text-small);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--space-gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(242, 183, 5, 0.2);
  padding-bottom: 0.5rem;
}

.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  font-family: var(--font-primary);
  font-size: var(--text-small);
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.footer-links a:hover {
  color: var(--space-gold);
  padding-left: 0.25rem;
}

.footer-contact li {
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--text-small);
}

.footer-contact a {
  color: var(--space-goldgray);
}

.footer-contact a:hover {
  color: var(--space-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.25rem;
  background: rgba(11, 30, 59, 0.6);
}

.footer-icp,
.footer-slogan {
  margin: 0 auto;
  text-align: center;
  font-family: var(--font-primary);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.55);
  max-width: var(--container-width);
}

.footer-slogan {
  margin-top: 0.4rem;
  color: var(--space-gold);
  letter-spacing: 0.08em;
}

.page-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
  min-height: 60vh;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  font-family: var(--font-primary);
  font-size: var(--text-small);
  margin-bottom: 2rem;
  color: var(--space-ultra);
}

.breadcrumb-link {
  color: var(--space-electric);
}

.breadcrumb-link:hover {
  color: var(--space-ultra);
}

.breadcrumb-current {
  color: var(--space-ink);
  font-weight: 600;
}

.section-header {
  margin-bottom: 1.5rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--space-electric);
  background: color-mix(in srgb, var(--space-electric) 10%, transparent);
  padding: 0.25rem 0.75rem;
  border-left: 3px solid var(--space-gold);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.section-title {
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.8rem 1.75rem;
  border-radius: var(--radius-small);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--space-gold) 0%, #D99E06 100%);
  color: var(--space-ink);
  box-shadow: 0 8px 24px rgba(242, 183, 5, 0.25);
}

.btn-gold:hover {
  box-shadow: 0 12px 32px rgba(242, 183, 5, 0.4);
}

.btn-ghost {
  background: transparent;
  color: var(--space-electric);
  border: 2px solid var(--space-electric);
}

.btn-ghost:hover {
  background: rgba(109, 40, 217, 0.08);
  color: var(--space-ultra);
  box-shadow: 0 8px 20px rgba(109, 40, 217, 0.15);
}

.paper-card {
  background: var(--space-cream);
  border: 1px solid var(--space-goldgray);
  border-radius: var(--radius-medium);
  padding: 1.75rem;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card-dark {
  background: linear-gradient(145deg, var(--space-deep) 0%, var(--space-ultra) 100%);
  border-color: rgba(242, 183, 5, 0.35);
  color: var(--space-white);
}

.card-edged {
  border: 2px solid var(--space-ink);
  outline: 1px solid var(--space-goldgray);
  outline-offset: 4px;
  box-shadow: 4px 4px 0 var(--space-goldgray);
}

.tilt-left {
  clip-path: polygon(0 0, calc(100% - 1.5rem) 0, 100% 1.5rem, 100% 100%, 1.5rem 100%, 0 calc(100% - 1.5rem));
}

.tilt-right {
  clip-path: polygon(1.5rem 0, 100% 0, 100% calc(100% - 1.5rem), calc(100% - 1.5rem) 100%, 0 100%, 0 1.5rem);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: var(--space-goldgray);
  color: var(--space-ink);
}

.status-live {
  background: var(--space-success);
  color: var(--space-deep);
}

.status-soon {
  background: var(--space-gold);
  color: var(--space-ink);
}

.status-warn {
  background: var(--space-warn);
  color: var(--space-white);
}

.notice-bar {
  background: linear-gradient(90deg, rgba(248, 113, 113, 0.15) 0%, rgba(242, 183, 5, 0.12) 100%);
  border-left: 4px solid var(--space-warn);
  border-radius: var(--radius-medium);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.notice-text {
  font-family: var(--font-primary);
  font-size: var(--text-small);
  margin: 0;
}

.notice-link {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: var(--text-small);
  color: var(--space-ultra);
  white-space: nowrap;
}

.image-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--space-deep);
  border-radius: var(--radius-medium);
  min-height: 9rem;
}

.image-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(242, 183, 5, 0.08) 0%, rgba(109, 40, 217, 0.15) 100%);
  pointer-events: none;
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

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

.image-frame-1-1 {
  aspect-ratio: 1 / 1;
}

.divider-slashed {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2.25rem 0;
}

.divider-slashed::before,
.divider-slashed::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--space-gold) 0%, var(--space-electric) 100%);
}

.divider-slashed span {
  font-family: var(--font-primary);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--space-ultra);
  letter-spacing: 0.1em;
  padding: 0 0.5rem;
  background: var(--space-cream);
  border-radius: var(--radius-small);
}

.grid-simple {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.col-1 { grid-column: span 1; }
.col-2 { grid-column: span 2; }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

@media (max-width: 1024px) {
  .col-md-6 { grid-column: span 6; }
  .col-md-12 { grid-column: span 12; }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .footer-col-info {
    grid-column: span 2;
    padding-right: 0;
  }
}

@media (max-width: 820px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: fixed;
    top: 3.75rem;
    left: 0;
    right: 0;
    background: var(--space-deep);
    border-bottom: 1px solid rgba(242, 183, 5, 0.25);
    display: none;
    box-shadow: 0 20px 40px rgba(11, 30, 59, 0.5);
    max-height: calc(100vh - 3.75rem);
    overflow-y: auto;
  }

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

  .site-header[data-open] {
    border-bottom: none;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
    padding: 1rem 1.25rem 1.5rem;
    align-items: stretch;
  }

  .nav-link {
    justify-content: space-between;
    padding: 1rem 0.75rem;
    font-size: 1rem;
    border-radius: var(--radius-small);
  }

  .nav-link::before {
    font-size: 0.8rem;
  }

  .nav-link[aria-current="page"]::after {
    left: auto;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    bottom: auto;
    width: 3px;
    height: 1.5rem;
  }

  .header-inner {
    padding: 0.6rem 1rem;
    min-height: 3.75rem;
  }

  .brand-sub {
    display: none;
  }
}

@media (max-width: 640px) {
  .grid-simple {
    grid-template-columns: repeat(6, 1fr);
  }
  .col-1, .col-2, .col-3, .col-4, .col-5, .col-6, .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    grid-column: span 6;
  }
  .col-md-6 {
    grid-column: span 6;
  }
  .col-md-12 {
    grid-column: span 6;
  }
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-col-info {
    grid-column: span 1;
  }
  .page-shell {
    padding: 1.5rem 1rem 2.5rem;
  }
  .btn {
    width: 100%;
  }
  .notice-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}