/* =========================================================
   皇冠竞技 · 共享站点样式 /assets/site.css
   ========================================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scrollbar-color: rgba(242, 183, 5, 0.4) rgba(10, 17, 40, 0.8);
}

body {
  min-height: 100vh;
  background: var(--color-navy);
  color: var(--color-ivory);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

ul,
ol {
  list-style: none;
}

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

/* ---------- 2. Design Tokens ---------- */
:root {
  --color-navy: #0a1128;
  --color-midnight: #1b2a4a;
  --color-gold: #f2b705;
  --color-neon: #39ff14;
  --color-cyan: #00e5ff;
  --color-violet: #7b2fbe;
  --color-ivory: #f5f0e6;
  --color-ink: #1f2937;
  --color-mist: #9ca3af;

  --font-heading: "Orbitron", "Rajdhani", "Noto Sans SC", sans-serif;
  --font-sub: "Noto Serif SC", "Source Han Serif SC", serif;
  --font-body: "Inter", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;

  --content-max: 1200px;
  --gap: 24px;
  --radius: 2px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- 3. Selection & Focus ---------- */
::selection {
  background: var(--color-gold);
  color: var(--color-navy);
}

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

/* ---------- 4. Container ---------- */
.container {
  width: 100%;
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ---------- 5. Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.2rem;
  background: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: top 0.25s ease;
}

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

/* ---------- 6. Scroll Progress ---------- */
.scroll-progress {
  --progress: 0;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 100%;
  height: 3px;
  pointer-events: none;
  background: transparent;
}

.scroll-progress::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-neon), var(--color-cyan));
  transform: scaleX(var(--progress));
  transform-origin: left top;
  will-change: transform;
}

/* ---------- 7. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 17, 40, 0.88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(156, 163, 175, 0.14);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(10, 17, 40, 0.96);
  border-bottom-color: rgba(242, 183, 5, 0.28);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.site-header__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 0.9rem;
  padding-bottom: 0.3rem;
  text-align: center;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.site-header__crown {
  font-size: 2rem;
  line-height: 1;
  color: var(--color-gold);
  text-shadow: 0 0 18px rgba(242, 183, 5, 0.55);
  transition: color 0.3s ease, text-shadow 0.3s ease, transform 0.3s var(--ease-out);
}

.site-header__brand:hover .site-header__crown {
  text-shadow: 0 0 28px rgba(242, 183, 5, 0.95);
  transform: scale(1.06);
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.2;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.55rem;
  letter-spacing: 0.08em;
  color: var(--color-ivory);
  white-space: nowrap;
  text-shadow: 0 0 28px rgba(242, 183, 5, 0.25);
}

.site-header__tagline {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-mist);
  margin-left: 0.28em;
}

.site-header__countdown {
  position: absolute;
  right: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(57, 255, 20, 0.35);
  background: rgba(10, 17, 40, 0.7);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-mist);
  white-space: nowrap;
}

.site-header__countdown-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 8px var(--color-neon);
  animation: crown-pulse 2s ease-in-out infinite;
}

.site-header__countdown-label {
  letter-spacing: 0.04em;
}

.site-header__countdown-time {
  color: var(--color-neon);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  min-width: 4.2em;
  text-align: right;
}

@keyframes crown-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

.site-header__toggle {
  display: none;
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 42px;
  height: 42px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(242, 183, 5, 0.4);
  background: rgba(27, 42, 74, 0.55);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header__toggle:hover {
  border-color: var(--color-neon);
}

.site-header__toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.site-header__toggle[data-open] .site-header__toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.site-header__toggle[data-open] .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ---------- 8. Navigation ---------- */
.site-nav {
  width: 100%;
}

.site-nav__list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem 1.75rem;
  padding: 0.35rem 0 0.25rem;
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 0.35rem 0.2rem;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: rgba(245, 240, 230, 0.82);
  text-transform: uppercase;
  transition: color 0.25s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-neon));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease-out);
}

.site-nav__link:hover {
  color: var(--color-ivory);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

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

/* ---------- 9. Back to Top ---------- */
.back-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.75rem;
  z-index: 95;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(242, 183, 5, 0.5);
  background: rgba(10, 17, 40, 0.85);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--color-gold);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s var(--ease-out), border-color 0.3s ease, color 0.3s ease;
}

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

.back-top:hover {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
}

.back-top__icon {
  font-size: 1rem;
  line-height: 1;
}

/* ---------- 10. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: 4.5rem;
  background: linear-gradient(180deg, #0d1a38 0%, #070d1f 100%);
  color: rgba(245, 240, 230, 0.78);
  border-top: 1px solid rgba(156, 163, 175, 0.15);
}

.site-footer__accent {
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-neon) 40%, var(--color-cyan) 75%, var(--color-violet) 100%);
}

.site-footer__inner {
  padding-top: 3rem;
  padding-bottom: 1.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 2.5rem;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--color-ivory);
  margin-bottom: 0.8rem;
}

.site-footer__crown {
  color: var(--color-gold);
  font-size: 1.8rem;
  line-height: 1;
}

.site-footer__mission {
  max-width: 40ch;
  font-size: 0.85rem;
  line-height: 1.8;
  color: rgba(245, 240, 230, 0.6);
  margin-bottom: 1.2rem;
}

.site-footer__icp {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-mist);
}

.site-footer__heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  padding-bottom: 0.6rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid rgba(242, 183, 5, 0.22);
}

.site-footer__list li {
  margin-bottom: 0.55rem;
}

.site-footer__list a {
  display: inline-block;
  color: rgba(245, 240, 230, 0.72);
  font-size: 0.9rem;
  transition: color 0.25s ease, padding-left 0.25s var(--ease-out);
}

.site-footer__list a:hover {
  color: var(--color-cyan);
  padding-left: 4px;
}

.site-footer__contact {
  margin-bottom: 0.75rem;
}

.site-footer__contact-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-mist);
  margin-bottom: 0.1rem;
}

.site-footer__contact-value {
  font-size: 0.88rem;
  color: rgba(245, 240, 230, 0.8);
  word-break: break-all;
}

.site-footer__service-note {
  margin-top: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-mist);
}

.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  color: var(--color-mist);
}

.site-footer__legal {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.site-footer__legal a {
  color: rgba(245, 240, 230, 0.62);
  transition: color 0.25s ease;
}

.site-footer__legal a:hover {
  color: var(--color-cyan);
}

/* ---------- 11. Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: linear-gradient(135deg, rgba(242, 183, 5, 0.14) 0%, rgba(0, 229, 255, 0.04) 100%);
  border: 1px solid rgba(242, 183, 5, 0.45);
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.2s var(--ease-out);
}

.btn::before,
.btn::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
  transition: width 0.3s ease, height 0.3s ease;
}

.btn::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--color-neon);
  border-left: 2px solid var(--color-neon);
}

.btn::after {
  bottom: -1px;
  right: -1px;
  border-bottom: 2px solid var(--color-neon);
  border-right: 2px solid var(--color-neon);
}

.btn:hover {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.16) 0%, rgba(242, 183, 5, 0.04) 100%);
  transform: translateY(-2px);
}

.btn--primary {
  color: var(--color-navy);
  background: linear-gradient(135deg, var(--color-gold) 0%, #ffd54f 100%);
  border-color: var(--color-gold);
}

.btn--primary:hover {
  color: var(--color-navy);
  background: linear-gradient(135deg, var(--color-neon) 0%, #b9ff3f 100%);
  border-color: var(--color-neon);
}

.btn--ghost {
  color: var(--color-cyan);
  border-color: rgba(0, 229, 255, 0.5);
  background: transparent;
}

.btn--ghost:hover {
  color: var(--color-ivory);
  border-color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.12);
}

/* ---------- 12. Breadcrumbs ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  padding: 1.1rem 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-mist);
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--color-gold);
}

.breadcrumbs a {
  color: rgba(245, 240, 230, 0.7);
  transition: color 0.25s ease;
}

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

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

/* ---------- 13. Section Shells ---------- */
.section {
  padding: 4.5rem 0;
}

.section--tight {
  padding: 2.5rem 0;
}

.section--dark {
  background: var(--color-midnight);
  color: var(--color-ivory);
}

.section--light {
  background: var(--color-ivory);
  color: var(--color-ink);
}

.section--diagonal {
  position: relative;
}

.section--diagonal::before {
  content: "";
  position: absolute;
  top: 0;
  left: -5%;
  width: 110%;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--color-gold) 20%, var(--color-cyan) 60%, transparent 100%);
  transform: rotate(-1.2deg);
  transform-origin: left center;
  pointer-events: none;
}

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--color-ivory);
  margin-bottom: 1.2rem;
  line-height: 1.25;
  text-transform: uppercase;
}

.section-lead {
  font-family: var(--font-sub);
  font-size: 1rem;
  color: rgba(245, 240, 230, 0.68);
  max-width: 64ch;
  margin-bottom: 2rem;
}

.section--light .section-heading {
  color: var(--color-ink);
}

.section--light .section-lead {
  color: var(--color-mist);
}

/* ---------- 14. Tags ---------- */
.cat-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  background: rgba(242, 183, 5, 0.08);
  border: 1px solid rgba(242, 183, 5, 0.35);
  border-radius: var(--radius);
}

.cat-tag::before {
  content: "◆";
  font-size: 0.5em;
  line-height: 1;
}

.cat-tag--cyan {
  color: var(--color-cyan);
  background: rgba(0, 229, 255, 0.06);
  border-color: rgba(0, 229, 255, 0.35);
}

.cat-tag--green {
  color: var(--color-neon);
  background: rgba(57, 255, 20, 0.06);
  border-color: rgba(57, 255, 20, 0.35);
}

/* ---------- 15. Bento Grid ---------- */
.bento-grid {
  --bento-cols: 12;
  display: grid;
  grid-template-columns: repeat(var(--bento-cols), 1fr);
  gap: var(--gap);
}

.bento-grid__item {
  grid-column: span var(--bento-span, 4);
  position: relative;
  background: linear-gradient(150deg, rgba(27, 42, 74, 0.92) 0%, rgba(10, 17, 40, 0.8) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.5rem;
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}

.bento-grid__item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  width: 56px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-cyan));
}

.bento-grid__item:hover {
  transform: translateY(-3px);
  border-color: rgba(242, 183, 5, 0.35);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}

.bento-grid__item--tilt {
  transform: rotate(-1.4deg);
}

.bento-grid__item--tilt:hover {
  transform: rotate(-1.4deg) translateY(-3px);
}

/* ---------- 16. Dossier Card ---------- */
.dossier-card {
  position: relative;
  padding: 1.5rem 1.5rem 1.75rem;
  background: linear-gradient(145deg, rgba(27, 42, 74, 0.95) 0%, rgba(10, 17, 40, 0.85) 100%);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-top: 3px solid var(--color-gold);
  transition: border-color 0.3s ease, transform 0.3s var(--ease-out), box-shadow 0.3s ease;
}

.dossier-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--color-neon);
  box-shadow: 0 14px 44px rgba(0, 0, 0, 0.38), 0 0 24px rgba(57, 255, 20, 0.07);
}

.dossier-card__title {
  font-family: var(--font-heading);
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-ivory);
  margin-bottom: 0.4rem;
}

.dossier-card__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-mist);
  letter-spacing: 0.05em;
}

/* ---------- 17. Media Frame ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  background: linear-gradient(140deg, rgba(27, 42, 74, 0.8), rgba(10, 17, 40, 0.6));
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.media-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.media-frame--ratio-4-3::before {
  padding-top: 75%;
}

.media-frame--ratio-3-4::before {
  padding-top: 133.35%;
}

.media-frame--ratio-1-1::before {
  padding-top: 100%;
}

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

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 1rem;
  background: linear-gradient(135deg, rgba(123, 47, 190, 0.28) 0%, transparent 55%),
    linear-gradient(315deg, rgba(242, 183, 5, 0.16) 0%, transparent 60%),
    rgba(10, 17, 40, 0.72);
  border: 1px dashed rgba(156, 163, 175, 0.32);
  color: var(--color-mist);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-align: center;
}

/* ---------- 18. Frame Window ---------- */
.frame-window {
  position: relative;
  padding: 1.75rem 1.5rem;
  background: linear-gradient(160deg, rgba(27, 42, 74, 0.55) 0%, rgba(10, 17, 40, 0.25) 100%);
  border: 1px solid rgba(156, 163, 175, 0.2);
}

.frame-window::before,
.frame-window::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  pointer-events: none;
}

.frame-window::before {
  top: 0;
  left: 0;
  border-top: 2px solid var(--color-gold);
  border-left: 2px solid var(--color-gold);
}

.frame-window::after {
  bottom: 0;
  right: 0;
  border-bottom: 2px solid var(--color-neon);
  border-right: 2px solid var(--color-neon);
}

/* ---------- 19. Scale Ruler ---------- */
.scale-ruler {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.4rem 0.25rem 0.35rem;
  border-bottom: 1px solid rgba(156, 163, 175, 0.35);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--color-mist);
  text-transform: uppercase;
}

.scale-ruler::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 100%;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, rgba(156, 163, 175, 0.5) 0 1px, transparent 1px 8px);
}

/* ---------- 20. Prose ---------- */
.prose {
  max-width: 70ch;
}

.prose p {
  margin-bottom: 1.3rem;
  color: rgba(245, 240, 230, 0.82);
}

.prose h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 900;
  letter-spacing: 0.03em;
  color: var(--color-ivory);
  margin: 2.6rem 0 1rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--color-gold);
  line-height: 1.35;
}

.prose h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-ivory);
  margin: 2rem 0 0.8rem;
}

.prose ul {
  margin: 0 0 1.3rem;
  padding-left: 1.4rem;
  list-style: none;
}

.prose ul li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.5rem;
  color: rgba(245, 240, 230, 0.8);
}

.prose ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-neon);
}

.prose blockquote {
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  border-left: 3px solid var(--color-gold);
  background: rgba(27, 42, 74, 0.55);
  color: rgba(245, 240, 230, 0.72);
  font-family: var(--font-sub);
}

.prose a {
  color: var(--color-cyan);
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
}

.prose a:hover {
  border-bottom-color: var(--color-cyan);
}

.prose strong {
  color: var(--color-gold);
  font-weight: 700;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15em 0.4em;
  background: rgba(255, 255, 255, 0.07);
  border-radius: 2px;
  color: var(--color-cyan);
}

.section--light .prose p,
.section--light .prose ul li {
  color: var(--color-ink);
}

.section--light .prose h2,
.section--light .prose h3 {
  color: var(--color-ink);
}

.section--light .prose blockquote {
  background: rgba(242, 183, 5, 0.1);
  color: var(--color-ink);
}

.section--light .prose code {
  background: rgba(10, 17, 40, 0.06);
  color: #715b00;
}

/* ---------- 21. Chapter Link Protocol ---------- */
[data-chapter-link] {
  display: inline-block;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

[data-chapter-link].is-active {
  color: var(--color-gold);
  font-weight: 700;
}

[data-chapter-link].is-active::before {
  content: "▸ ";
  color: var(--color-neon);
}

/* ---------- 22. Utility Patterns ---------- */
.scanlines {
  background-image: linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 183, 5, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
}

/* ---------- 23. Responsive ---------- */
@media (max-width: 980px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .site-footer__col--brand {
    grid-column: 1 / -1;
  }

  .section {
    padding: 3rem 0;
  }
}

@media (max-width: 860px) {
  .site-header__toggle {
    display: flex;
  }

  .site-header__countdown {
    right: 1rem;
    padding: 0.28rem 0.55rem;
  }

  .site-header__countdown-label {
    display: none;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    background: rgba(10, 17, 40, 0.98);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-top: 1px solid rgba(242, 183, 5, 0.25);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    transition: max-height 0.4s var(--ease-out), opacity 0.3s ease, visibility 0.3s ease;
  }

  .site-nav[data-open] {
    max-height: 420px;
    opacity: 1;
    visibility: visible;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.75rem 1.25rem 1rem;
  }

  .site-nav__item {
    width: 100%;
  }

  .site-nav__link {
    display: block;
    width: 100%;
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .site-nav__link::after {
    bottom: 0;
  }

  .bento-grid__item {
    grid-column: span 6;
  }
}

@media (max-width: 640px) {
  .site-header__inner {
    padding-top: 0.7rem;
  }

  .site-header__crown {
    font-size: 1.5rem;
  }

  .site-header__brand-name {
    font-size: 1.2rem;
  }

  .site-header__countdown-time {
    font-size: 0.78rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .back-top {
    right: 0.9rem;
    bottom: 1.2rem;
  }

  .bento-grid__item {
    grid-column: span 12;
  }
}

@media (max-width: 480px) {
  .site-header__brand-name {
    font-size: 1.05rem;
  }

  .site-header__toggle {
    left: 0.75rem;
    width: 38px;
    height: 38px;
  }

  .site-header__countdown {
    right: 0.75rem;
  }

  .btn {
    padding: 0.7rem 1.4rem;
  }
}

/* ---------- 24. 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;
  }
}