/* =====================================================
   博亚娱乐 Site Kit — 共享样式表 /assets/site.css
   ===================================================== */

/* ---------- 1. Reset & Variables ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text);
  background:
    radial-gradient(ellipse at 85% 0%, rgba(155, 92, 255, 0.07), transparent 55%),
    radial-gradient(ellipse at 10% 25%, rgba(0, 229, 255, 0.04), transparent 45%),
    radial-gradient(ellipse at 50% 100%, rgba(245, 184, 65, 0.05), transparent 50%),
    var(--color-bg);
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(245, 184, 65, 0.05) 1px, transparent 0);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

#main-content {
  position: relative;
  z-index: 1;
  flex: 1 0 auto;
  width: 100%;
}

:root {
  --color-bg: #0A0B10;
  --color-surface: #161A23;
  --color-surface-raised: #1C2130;
  --color-gold: #F5B841;
  --color-gold-light: #FFD977;
  --color-blue: #00E5FF;
  --color-purple: #9B5CFF;
  --color-text: #F0F2F8;
  --color-text-dim: #8A90A3;
  --color-danger: #FF5C7A;
  --color-success: #3DDC97;

  --font-display: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-accent: "Source Serif 4", "Noto Serif SC", "Songti SC", serif;

  --header-h: 72px;
  --container-w: 1280px;
  --space-section: clamp(4rem, 8vw, 7rem);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
  --shadow-float: 0 14px 44px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(245, 184, 65, 0.08);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-1: 150ms;
  --dur-2: 300ms;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

/* ---------- 2. Typography ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  transform: skewX(-2deg);
  transform-origin: left center;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 1rem;
  text-wrap: pretty;
}

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color var(--dur-1) ease-out;
}

a:hover {
  color: var(--color-gold-light);
}

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

del {
  color: var(--color-danger);
  text-decoration: line-through;
}

mark {
  background: rgba(245, 184, 65, 0.18);
  color: var(--color-gold-light);
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

.section-number {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: 0.875rem;
  letter-spacing: 0.12em;
  color: var(--color-gold);
  display: inline-block;
  margin-bottom: 0.5rem;
}

.editorial-note {
  font-family: var(--font-accent);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-text-dim);
  border-left: 2px solid rgba(245, 184, 65, 0.35);
  padding-left: 1rem;
  margin: 1.5rem 0;
}

/* ---------- 3. Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
}

.layout-split {
  display: grid;
  grid-template-columns: minmax(260px, 38fr) minmax(0, 62fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
}

.layout-aside {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}

.layout-main {
  min-width: 0;
}

@media (max-width: 1023px) {
  .layout-split {
    grid-template-columns: 1fr;
  }

  .layout-aside {
    position: static;
  }
}

.divider-glow {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(245, 184, 65, 0.35), rgba(0, 229, 255, 0.25), transparent);
  margin: clamp(2.5rem, 5vw, 4rem) 0;
}

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--color-surface);
  color: var(--color-text);
  transition:
    background var(--dur-2) var(--ease-out),
    border-color var(--dur-2) var(--ease-out),
    color var(--dur-2) var(--ease-out),
    transform var(--dur-2) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out);
  white-space: nowrap;
}

.btn:hover {
  background: var(--color-surface-raised);
  color: var(--color-text);
  border-color: rgba(245, 184, 65, 0.3);
  transform: translateY(-1px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), #d9a035);
  color: var(--color-bg);
  border-color: transparent;
  clip-path: polygon(calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%, 0 0);
  padding-left: 1.75rem;
  padding-right: 1.75rem;
  filter: drop-shadow(0 4px 12px rgba(245, 184, 65, 0.2));
  position: relative;
  z-index: 1;
}

.btn-gold:hover {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold));
  color: var(--color-bg);
  border-color: transparent;
  transform: translateY(-1px);
  filter: drop-shadow(0 6px 22px rgba(245, 184, 65, 0.4));
}

.btn-header {
  padding-block: 0.5rem;
  font-size: 0.875rem;
}

.btn-outline {
  background: transparent;
  border: 1px solid rgba(245, 184, 65, 0.4);
  color: var(--color-gold-light);
}

.btn-outline:hover {
  border-color: var(--color-gold);
  background: rgba(245, 184, 65, 0.08);
}

/* ---------- 5. Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 2000;
  background: var(--color-gold);
  color: var(--color-bg);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.6rem 1.2rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top var(--dur-2) var(--ease-out);
}

.skip-link:focus-visible {
  top: 0;
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

/* ---------- 6. Header ---------- */
.site-header {
  --header-h: 72px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, rgba(10, 11, 16, 0.92), rgba(10, 11, 16, 0.78));
  border-bottom: 1px solid rgba(245, 184, 65, 0.08);
  transition:
    height var(--dur-2) var(--ease-out),
    background var(--dur-2) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out);
}

.site-header.is-scrolled {
  --header-h: 58px;
  background: rgba(10, 11, 16, 0.84);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(245, 184, 65, 0.14);
}

.header-inner {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 100%;
}

.scroll-track {
  position: absolute;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light), var(--color-blue));
  box-shadow: 0 0 12px rgba(245, 184, 65, 0.5);
  pointer-events: none;
  z-index: 10;
  transition: width 0.08s linear;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
  transition: opacity var(--dur-1) ease-out;
}

.brand-lockup:hover {
  opacity: 0.88;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9375rem;
  color: var(--color-bg);
  flex-shrink: 0;
  text-indent: 0;
  filter: drop-shadow(0 2px 8px rgba(245, 184, 65, 0.35));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-word {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.06em;
  color: var(--color-text);
}

.brand-sub {
  font-size: 0.625rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  font-weight: 500;
}

.nav-shell {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 1.2vw, 1.125rem);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-item {
  margin: 0;
  padding: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  position: relative;
  padding: 0.5rem 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-1) ease-out;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0.4rem;
  right: 0.4rem;
  bottom: 0.1rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-2) var(--ease-out);
}

.nav-link:hover {
  color: var(--color-gold-light);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

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

.nav-link[aria-current="page"]::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 0.35rem;
  border-radius: 50%;
  background: var(--color-gold);
  box-shadow: 0 0 8px var(--color-gold);
  vertical-align: middle;
}

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  gap: 5px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition:
    border-color var(--dur-1) ease-out,
    background var(--dur-1) ease-out;
}

.nav-toggle:hover {
  border-color: rgba(245, 184, 65, 0.4);
  background: rgba(245, 184, 65, 0.06);
}

.nav-toggle:focus-visible {
  outline: none;
  border-color: var(--color-blue);
}

.nav-toggle-line {
  width: 20px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition:
    transform var(--dur-2) var(--ease-out),
    opacity var(--dur-2) var(--ease-out),
    background var(--dur-1) ease-out;
}

.nav-toggle[data-open] .nav-toggle-line:nth-child(2) {
  background: var(--color-gold);
}

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

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

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

/* ---------- 7. Mobile Nav Overlay ---------- */
@media (max-width: 1023px) {
  .nav-shell {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 1100;
    display: block;
    margin: 0;
    padding: 1.5rem clamp(1rem, 3vw, 2rem) calc(1.5rem + env(safe-area-inset-bottom));
    background: rgba(10, 11, 16, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(245, 184, 65, 0.15);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition:
      opacity var(--dur-2) var(--ease-out),
      transform var(--dur-2) var(--ease-out),
      visibility var(--dur-2) var(--ease-out),
      top var(--dur-2) var(--ease-out);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .nav-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    display: flex;
    align-items: center;
    padding: 0.85rem 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    width: 100%;
  }

  .nav-link::after {
    left: 0;
    right: 0;
    bottom: -1px;
  }

  .nav-link[aria-current="page"] {
    color: var(--color-gold);
    background: linear-gradient(90deg, rgba(245, 184, 65, 0.06), transparent);
    padding-left: 0.8rem;
  }

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

  .site-header {
    --header-h: 72px;
  }
}

@media (max-width: 767px) {
  .btn-header {
    padding-inline: 0.85rem;
    font-size: 0.8125rem;
    clip-path: polygon(calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 0 100%, 0 0);
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }

  .brand-word {
    font-size: 0.9375rem;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    font-size: 0.8125rem;
  }

  .brand-sub {
    font-size: 0.5rem;
    letter-spacing: 0.12em;
  }

  .header-actions {
    gap: 0.5rem;
  }
}

/* ---------- 8. Footer ---------- */
.site-footer {
  position: relative;
  z-index: 1;
  background:
    radial-gradient(ellipse at 90% 15%, rgba(155, 92, 255, 0.06), transparent 50%),
    radial-gradient(ellipse at 5% 80%, rgba(0, 229, 255, 0.04), transparent 40%),
    linear-gradient(180deg, #0D1016, var(--color-bg));
  border-top: 1px solid rgba(245, 184, 65, 0.1);
  overflow: hidden;
}

.footer-orb {
  position: absolute;
  right: 6%;
  top: -50px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(155, 92, 255, 0.18), transparent 62%);
  filter: blur(48px);
  pointer-events: none;
}

.footer-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.6fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: clamp(3rem, 6vw, 5rem);
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
}

.brand-lockup-footer .brand-word {
  font-size: 1.25rem;
}

.brand-lockup-footer .brand-sub {
  font-size: 0.6875rem;
}

.footer-desc {
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  line-height: 1.6;
  margin: 0;
}

.footer-trust {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-dim);
  margin: 0;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(61, 220, 151, 0.08);
  border: 1px solid rgba(61, 220, 151, 0.18);
}

.dot-success {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px rgba(61, 220, 151, 0.65);
  flex-shrink: 0;
  animation: pulse-dot 2.4s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}

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

.footer-heading {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid rgba(245, 184, 65, 0.14);
  transform: none;
}

.footer-link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-text);
  text-decoration: none;
  transition:
    color var(--dur-1) ease-out,
    transform var(--dur-1) ease-out;
}

.footer-link::before {
  content: "›";
  color: var(--color-gold);
  margin-right: 0.4rem;
  font-weight: 700;
  font-family: var(--font-body);
  transition: transform var(--dur-1) ease-out;
}

.footer-link:hover {
  color: var(--color-gold-light);
  transform: translateX(3px);
}

.footer-link:hover::before {
  transform: translateX(2px);
}

.footer-address {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-style: normal;
}

.footer-contact-line {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.5;
  word-break: break-all;
}

.contact-label {
  display: inline-block;
  min-width: 2em;
  font-weight: 600;
  color: var(--color-text-dim);
  font-size: 0.8125rem;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-block: 1.25rem;
  background: rgba(0, 0, 0, 0.25);
}

.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.footer-icp {
  letter-spacing: 0.02em;
}

@media (max-width: 1023px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

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

@media (max-width: 599px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }

  .footer-bottom-inner {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

/* ---------- 9. Back To Top ---------- */
.back-to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 1200;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-surface-raised), var(--color-surface));
  border: 1px solid rgba(245, 184, 65, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.5),
    0 0 0 rgba(245, 184, 65, 0);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition:
    opacity var(--dur-2) var(--ease-out),
    transform var(--dur-2) var(--ease-out),
    visibility var(--dur-2),
    box-shadow var(--dur-2) var(--ease-out),
    border-color var(--dur-1) ease-out;
  pointer-events: none;
}

.back-to-top:hover {
  border-color: var(--color-gold);
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.55),
    0 0 20px rgba(245, 184, 65, 0.25);
}

.back-to-top:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top-icon {
  color: var(--color-gold);
  font-size: 1.25rem;
  line-height: 1;
  transform: translateY(-1px);
}

/* ---------- 10. Shared Components ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 0;
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
  list-style: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.8125rem;
  color: var(--color-text-dim);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "›";
  color: var(--color-text-dim);
  opacity: 0.6;
}

.breadcrumb-item a {
  color: var(--color-text-dim);
  text-decoration: none;
  transition: color var(--dur-1) ease-out;
}

.breadcrumb-item a:hover {
  color: var(--color-gold);
}

.breadcrumb-item[aria-current="page"] {
  color: var(--color-gold);
  font-weight: 500;
}

.card {
  background: var(--color-surface);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-card);
  position: relative;
}

.card-elevated {
  background: linear-gradient(145deg, var(--color-surface-raised), var(--color-surface));
  border: 1px solid rgba(245, 184, 65, 0.1);
  border-radius: var(--radius-md);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow-float);
  transition:
    box-shadow var(--dur-2) var(--ease-out),
    transform var(--dur-2) var(--ease-out),
    border-color var(--dur-2) var(--ease-out);
}

.card-elevated:hover {
  border-color: rgba(245, 184, 65, 0.2);
  box-shadow: var(--shadow-float), 0 0 30px rgba(245, 184, 65, 0.06);
  transform: translateY(-2px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  line-height: 1.4;
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-gold {
  background: rgba(245, 184, 65, 0.12);
  color: var(--color-gold);
  border-color: rgba(245, 184, 65, 0.25);
}

.badge-new {
  background: rgba(0, 229, 255, 0.1);
  color: var(--color-blue);
  border-color: rgba(0, 229, 255, 0.25);
}

.badge-live {
  background: rgba(61, 220, 151, 0.1);
  color: var(--color-success);
  border-color: rgba(61, 220, 151, 0.25);
}

.badge-live::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 6px rgba(61, 220, 151, 0.6);
  animation: pulse-dot 2s ease-in-out infinite;
}

.image-frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(145deg, var(--color-surface), var(--color-bg));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.image-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(45deg, transparent 49%, rgba(245, 184, 65, 0.06) 50%, transparent 51%),
    linear-gradient(-45deg, transparent 49%, rgba(0, 229, 255, 0.05) 50%, transparent 51%);
  background-size: 22px 22px;
  opacity: 0.7;
  pointer-events: none;
}

.image-frame::after {
  content: "";
  position: absolute;
  right: -30%;
  bottom: -40%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, rgba(155, 92, 255, 0.15), transparent 60%);
  pointer-events: none;
}

.image-frame > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

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

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

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

/* ---------- 11. Accessibility & Focus ---------- */
:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection {
  background: rgba(245, 184, 65, 0.3);
  color: var(--color-text);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-surface-raised), var(--color-surface));
  border-radius: 10px;
  border: 2px solid var(--color-bg);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-gold), #a07a2c);
}

.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;
}

/* ---------- 12. Reduced Motion ---------- */
@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;
  }

  .back-to-top {
    transition: none;
  }

  .nav-shell {
    transition: none;
  }

  .nav-toggle-line {
    transition: none;
  }
}