html {
  scrollbar-gutter: stable;
}

:root {
  --hero-bg: #f5f0e8;
  --hero-accent: #e8c4b8;
  --hero-gold: #d4af37;
  --hero-text: #2a2520;
  --hero-muted: #605850;
  --lab-bg: #16151A;
  --lab-card: #1E1C22;
  --lab-accent: #4a9eff;
  --lab-text: #e8e8f0;
  --lab-muted: #888696;
  --creation-bg: #faf6f0;
  --creation-card: #f0ebe3;
  --creation-accent: #c4785a;
  --creation-text: #2a2018;
  --creation-muted: #62564a;
  --music-bg: #1a1210;
  --music-card: #241c18;
  --music-accent: #d4a574;
  --music-text: #f0e8dc;
  --music-muted: #8a7a6a;
  --social-bg: #f8f6f4;
  --social-card: #ffffff;
  --social-accent: #c4b8b0;
  --social-text: #2a2520;
  --social-muted: #8a8078;
  --font-display: 'Cormorant Garamond', serif;
  --font-jp: 'Shippori Mincho', serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition-smooth: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--hero-gold) transparent;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--hero-gold);
  border-radius: 3px;
}

html,
body {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-jp);
  color: var(--hero-text);
  background: var(--hero-bg);
}

::selection {
  background-color: #F2E3D0;
  color: #5B5245;
}

::-moz-selection {
  background-color: #F2E3D0;
  color: #5B5245;
}

#loader {
  position: fixed;
  inset: 0;
  background: var(--hero-bg);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1), opacity 1s ease;
}

#loader.hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.loader-text {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: 0.5em;
  color: var(--hero-text);
  display: flex;
  gap: 0.15em;
  overflow: hidden;
}

.loader-text span {
  opacity: 0;
  transform: translateY(20px);
  animation: letterFloat 0.6s var(--transition-smooth) forwards;
}

@keyframes letterFloat {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.loader-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--hero-muted);
  margin-top: 1.5rem;
  opacity: 0;
  animation: fadeIn 0.5s 1.5s forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.loader-progress {
  height: 1px;
  width: 0;
  background: var(--hero-gold);
  margin: 22px auto 0 auto;
  display: block;
  animation: progressGrow 1.1s 1.05s cubic-bezier(.5, 0, .2, 1) forwards;
  z-index: 10001;
}

@keyframes progressGrow {
  to {
    width: 220px;
  }
}

.top-logo {
  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: 9000;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--hero-text);
  text-decoration: none;
  letter-spacing: 0.15em;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1rem;
  border-radius: 30px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.top-logo:hover {
  color: var(--hero-gold);
  background: rgba(255, 255, 255, 0.9);
}

.menu-btn {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 9000;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s var(--transition-smooth);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.menu-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.menu-btn {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 9000;
  width: 54px;
  height: 54px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s var(--transition-smooth);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.menu-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.12);
}

.menu-btn .star {
  font-size: 2.2rem;
  line-height: 1;
  display: inline-block;
  color: var(--hero-gold);
  transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.menu-btn:not(.active):hover .star {
  transform: rotate(180deg);
}

.menu-btn.active .star {
  transform: rotate(540deg);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 8500;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s var(--transition-smooth);
}

.menu-overlay.active {
  pointer-events: all;
  opacity: 1;
}

.menu-panel {
  position: absolute;
  top: 50%;
  right: 2rem;
  transform: translateY(-50%) translateX(20px);
  width: 280px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 2rem;
  opacity: 0;
  transition: all 0.5s var(--transition-smooth);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.menu-overlay.active .menu-panel {
  transform: translateY(-50%) translateX(0);
  opacity: 1;
}

.menu-panel h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  color: var(--hero-text);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding-bottom: 1rem;
}

.menu-panel a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
  color: var(--hero-text);
  text-decoration: none;
  font-family: var(--font-jp);
  font-size: 0.95rem;
  transition: all 0.3s;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.menu-panel a:hover {
  color: var(--hero-gold);
  padding-left: 0.5rem;
}

.menu-panel a .idx {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--hero-muted);
}

#hero {
  min-height: 100vh;
  background: var(--hero-bg);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0 4rem;
}

.hero-bg-glow {
  position: absolute;
  right: -10%;
  top: 20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(232, 196, 184, 0.3) 0%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
}

.hero-container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.hero-left {
  width: 40%;
  padding-right: 2rem;
}

.hero-right {
  width: 60%;
  display: flex;
  justify-content: flex-end;
  position: relative;
}

.hero-right.reveal {
  opacity: 0;
  transform: translateX(10%) translateY(40px);
}

.hero-right.reveal.visible {
  opacity: 1;
  transform: translateX(10%) translateY(0);
}

.hero-meta-v0 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--hero-muted);
  letter-spacing: 0.15em;
  line-height: 1.8;
  margin-bottom: 1.2rem;
}

.hero-title-v0 {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 400;
  line-height: 1.1;
  color: var(--hero-text);
  margin-bottom: 1.5rem;
}

.hero-title-v0 span {
  font-style: italic;
  color: var(--hero-gold);
}

.hero-lead-v0 {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  line-height: 2;
  color: var(--hero-text);
  opacity: 0.85;
  margin-bottom: 1.2rem;
}

.hero-desc-v0 {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  line-height: 2;
  color: var(--hero-text);
  opacity: 0.85;
  margin-bottom: 1.8rem;
  border-left: 2px solid var(--hero-gold);
  padding-left: 1.2rem;
  display: inline-block;
  text-align: left;
  max-width: 100%;
}

.hero-signature {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 1.4rem;
}

.hero-signature p:first-child {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--hero-muted);
}

.hero-signature p:last-child {
  font-family: var(--font-display);
  font-size: 2.3rem;
  font-style: italic;
  margin-top: 0.5rem;
  color: var(--hero-text);
  letter-spacing: 0.02em;
}

.art-frame-v0 {
  position: relative;
  background: #fff;
  padding: 12px;
  box-shadow: 15px 15px 0px -5px rgba(232, 196, 184, 0.4);
  border: 1px solid rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 480px;
  z-index: 2;
}

.art-frame-v0 img {
  width: 100%;
  height: auto;
  display: block;
  background: #f0ebe3;
  min-height: 500px;
  object-fit: contain;
}

@media (min-width: 1025px) {
  .art-frame-v0 {
    height: 80vh;
    width: auto;
    aspect-ratio: 0.7;
    max-width: none;
  }

  .art-frame-v0 img {
    height: 100%;
    width: 100%;
    object-fit: contain;
  }
}

.vertical-text-v0 {
  position: absolute;
  left: -3rem;
  top: 3rem;
  writing-mode: vertical-rl;
  font-family: var(--font-jp);
  font-size: 0.9rem;
  color: var(--hero-muted);
  letter-spacing: 0.3em;
}

section {
  padding: 8rem 4rem;
  position: relative;
}

#lab {
  border-top: 1px solid rgba(212, 175, 55, 0.15);
  box-shadow: inset 0 20px 40px rgba(0, 0, 0, 0.1);
}

#creation {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: inset 0 20px 40px rgba(0, 0, 0, 0.02);
}

#music {
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  box-shadow: inset 0 20px 40px rgba(0, 0, 0, 0.2);
}

#social {
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: inset 0 20px 40px rgba(0, 0, 0, 0.02);
}

.section-header {
  margin-bottom: 4rem;
}

.section-header.right-align {
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.section-header .idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--hero-muted);
  margin-bottom: 1rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.section-header .subtitle {
  font-family: var(--font-jp);
  font-size: 0.9rem;
  color: var(--hero-muted);
  letter-spacing: 0.1em;
}

.reveal {
  opacity: 0;
  transform: translateY(40px) scale(0.98);
  transition: opacity 1s var(--transition-smooth), transform 1s var(--transition-smooth);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.delay-100 {
  transition-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
}

#lab {
  background: var(--lab-bg);
  color: var(--lab-text);
}

#lab .section-header .idx {
  color: var(--hero-gold);
  opacity: 0.8;
}

#lab .section-header h2 {
  color: var(--lab-text);
}

#lab .section-header .subtitle {
  color: var(--lab-muted);
}

.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.lab-card {
  background: var(--lab-card);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  transition: transform 0.4s var(--transition-smooth), box-shadow 0.4s var(--transition-smooth), border-color 0.4s var(--transition-smooth);
  display: flex;
  flex-direction: column;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.lab-card:hover {
  transition-delay: 0s !important;
  transform: translateY(-8px) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3) !important;
  border-color: rgba(212, 175, 55, 0.3) !important;
}

.lab-card-image {
  position: relative;
  width: 100%;
  height: 240px;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.02);
}

.lab-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--transition-smooth), filter 1s var(--transition-smooth);
  filter: grayscale(60%) sepia(20%) hue-rotate(180deg) brightness(0.6) contrast(1.1);
}

.lab-card:hover .lab-card-image img {
  transform: scale(1.05);
  filter: grayscale(0%) sepia(0%) hue-rotate(0deg) brightness(1) contrast(1);
}

.lab-badge {
  position: absolute;
  top: 1.2rem;
  left: 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  background: rgba(13, 15, 20, 0.8);
  backdrop-filter: blur(4px);
  color: var(--hero-gold);
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 4px;
  letter-spacing: 0.15em;
  z-index: 2;
}

.lab-card-content {
  padding: 2.5rem 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.lab-card-content h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
  color: #fff;
}

.lab-card-content .card-sub {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--lab-muted);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.lab-card-content p {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
  flex: 1;
}

.lab-card-content .card-link {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--hero-gold);
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s, color 0.3s;
}

.lab-card:hover .card-link {
  gap: 1rem;
  color: #fff;
}

#creation {
  background: var(--creation-bg);
  color: var(--creation-text);
}

.novel-showcase {
  display: grid;
  gap: 4rem;
  align-items: start;
  margin-bottom: 8rem;
}

@media (min-width: 1025px) {
  .novel-showcase.right-aligned {
    grid-template-columns: 1fr 40%;
    text-align: right;
  }

  .novel-showcase.right-aligned .novel-info {
    align-items: flex-end;
    margin-left: auto;
    max-width: 600px;
  }

  .novel-showcase.right-aligned .novel-cover {
    margin-left: 2rem;
    margin-right: auto;
  }

  .novel-showcase.left-aligned {
    grid-template-columns: 40% 1fr;
    text-align: left;
  }

  .novel-showcase.left-aligned .novel-info {
    align-items: flex-start;
    margin-right: auto;
    max-width: 600px;
  }

  .novel-showcase.left-aligned .novel-cover {
    margin-right: 2rem;
    margin-left: auto;
  }
}

#creation .section-header .idx {
  color: var(--hero-gold);
  opacity: 0.8;
}

.novel-cover {
  position: relative;
  aspect-ratio: 2/3;
  background: linear-gradient(135deg, #2a2018 0%, #1a1210 100%);
  border-radius: 4px;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.05), 16px 16px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  width: 312px;
  height: 468px;
}

.novel-cover .cover,
.novel-cover .cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.novel-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0, 0, 0, 0.4));
}

.novel-cover .cover-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-jp);
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.9rem;
}

.novel-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 1rem;
}

.novel-info .novel-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--creation-text);
  line-height: 1.3;
}

.novel-info .novel-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--creation-muted);
  letter-spacing: 0.1em;
}

.novel-info .novel-desc {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  line-height: 2;
  color: var(--creation-text);
  opacity: 0.85;
  max-width: 600px;
}

.novel-info .novel-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background: transparent;
  border: 1px solid var(--creation-accent);
  color: var(--creation-accent);
  font-family: var(--font-jp);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  border-radius: 2px;
  width: fit-content;
}

.novel-info .novel-btn:hover {
  background: var(--creation-accent);
  color: white;
}

.infinite-scroll-container {
  overflow: hidden;
  margin: 4rem 0;
  position: relative;
}

.infinite-scroll-container::before,
.infinite-scroll-container::after {
  content: '';
  position: absolute;
  top: 0;
  width: 150px;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.infinite-scroll-container::before {
  left: 0;
  background: linear-gradient(to right, var(--creation-bg), transparent);
}

.infinite-scroll-container::after {
  right: 0;
  background: linear-gradient(to left, var(--creation-bg), transparent);
}

.scroll-track {
  display: flex;
  width: max-content;
  animation: scrollMarquee 30s linear infinite;
}

.scroll-track:hover {
  animation-play-state: paused;
}

.scroll-group {
  display: flex;
  gap: 2rem;
  padding-right: 2rem;
  flex-shrink: 0;
}

@keyframes scrollMarquee {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-50%);
  }
}

@keyframes scrollMarqueeThird {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(-33.3333%);
  }
}

.illust-item {
  flex-shrink: 0;
  width: 260px;
  aspect-ratio: 3/4;
  background: var(--creation-card);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.illust-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.excerpt-card {
  flex-shrink: 0;
  width: max-content;
  min-width: 340px;
  padding: 2.5rem 2rem 2rem 2rem;
  background: var(--creation-card);
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.excerpt-card::before {
  content: '“';
  position: absolute;
  top: -15px;
  left: 10px;
  font-size: 8rem;
  font-family: var(--font-jp), serif;
  color: var(--creation-accent);
  opacity: 0.05;
  line-height: 1;
  pointer-events: none;
}

.excerpt-card .novel-name {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--creation-muted);
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  text-align: center;
}

.excerpt-card p {
  font-family: var(--font-jp);
  font-size: 0.9rem;
  line-height: 2;
  color: var(--creation-text);
  opacity: 0.85;
  white-space: nowrap;
  text-align: center;
}

.gpts-showcase {
  margin-top: 6rem;
}

.gpts-showcase h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.gpts-showcase .gpts-sub {
  font-family: var(--font-jp);
  font-size: 0.85rem;
  color: var(--creation-muted);
  margin-bottom: 3rem;
}

.gpts-stage {
  position: relative;
  width: 100%;
  max-width: 900px;
  aspect-ratio: 16/9;
  margin: 0 auto;
  background: #000;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.gpts-scene {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.6s var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.gpts-scene::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, 0.5) 100%),
    radial-gradient(circle, rgba(0, 0, 0, 0) 60%, rgba(0, 0, 0, 0.3) 100%);
  pointer-events: none;
  z-index: 1;
}

.gpts-scene.active {
  opacity: 1;
}

.gpts-scene img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.85) contrast(1.05) sepia(0.08);
  transition: transform 0.6s var(--transition-smooth);
}

.gpts-controls {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 1rem;
  align-items: center;
  z-index: 10;
}

.gpts-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all 0.3s;
}

.gpts-dot.active {
  background: white;
  width: 24px;
  border-radius: 4px;
}

.gpts-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s;
  opacity: 0.7;
}

.gpts-nav:hover {
  opacity: 1;
}

.gpts-nav.prev {
  left: 1rem;
}

.gpts-nav.next {
  right: 1rem;
}

#music {
  background: var(--music-bg);
  color: var(--music-text);
}

#music .section-header .idx {
  color: var(--music-muted);
}

#music .section-header h2 {
  color: var(--music-text);
}

#music .section-header .subtitle {
  color: var(--music-muted);
}

.music-player {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
  align-items: center;
}

.vinyl-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  max-width: 360px;
  margin: 0 auto;
}

.vinyl {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #1a1a1a, #2a2a2a, #1a1a1a, #2a2a2a, #1a1a1a);
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: spin 20s linear infinite;
  animation-play-state: paused;
}

.vinyl.playing {
  animation-play-state: running;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.vinyl-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 35%;
  height: 35%;
  border-radius: 50%;
  background: var(--music-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.vinyl-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--music-bg);
}

.music-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.music-now-playing {
  border-left: 2px solid var(--music-accent);
  padding-left: 1.5rem;
}

.music-now-playing .track-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--hero-gold);
  opacity: 0.8;
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
}

.music-now-playing .track-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.music-now-playing .track-artist {
  font-family: var(--font-jp);
  font-size: 0.85rem;
  color: var(--music-muted);
}

.music-lyrics {
  font-family: var(--font-jp);
  font-size: 0.9rem;
  line-height: 2;
  color: rgba(255, 255, 255, 0.6);
  font-style: italic;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
}

.music-controls {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.music-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--music-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  font-size: 1.2rem;
}

.music-btn:hover {
  background: var(--music-accent);
  border-color: var(--music-accent);
  color: var(--music-bg);
}

.music-btn.play {
  width: 64px;
  height: 64px;
  font-size: 1.5rem;
}

.music-progress {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.music-progress-bar {
  height: 100%;
  background: var(--music-accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s;
}

.music-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--music-muted);
}

.playlist {
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
}

.playlist h4 {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--music-muted);
  margin-bottom: 1.5rem;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 0;
  cursor: pointer;
  transition: all 0.3s;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.playlist-item:hover {
  padding-left: 0.5rem;
  color: var(--music-accent);
}

.playlist-item.active {
  color: var(--music-accent);
}

.playlist-item .pl-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--music-muted);
  width: 24px;
}

.playlist-item .pl-name {
  font-family: var(--font-jp);
  font-size: 0.9rem;
  flex: 1;
}

.playlist-item .pl-duration {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--music-muted);
}

#social {
  background: var(--social-bg, #FAF8F2);
  color: var(--social-text, #2A2725);
  padding: 6rem 2rem;
}

.social-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 3.5rem auto;
}

.social-star-top {
  color: var(--hero-gold, #E6C575);
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  display: block;
  animation: starSpinSlow 12s linear infinite;
}

@keyframes starSpinSlow {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.social-header .idx {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--hero-gold);
  opacity: 0.8;
  margin-bottom: 1rem;
  text-transform: uppercase;
  display: inline-block;
}

.social-header h2 {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--social-text, #2A2725);
  margin-bottom: 0.6rem;
}

.social-header .subtitle {
  font-family: var(--font-jp);
  font-size: 0.9rem;
  color: var(--social-muted, #78716C);
  letter-spacing: 0.1em;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  max-width: 1050px;
  margin: 0 auto;
}

.social-card.bilibili {
  --platform-color: #F472B6;
}

.social-card.twitter {
  --platform-color: #2A2725;
}

.social-card.pixiv {
  --platform-color: #62C3A5;
}

.social-card.facebook {
  --platform-color: #06B6D4;
}

.social-card.instagram {
  --platform-color: #E6C575;
}

.social-card.threads {
  --platform-color: #78716C;
}

.social-card {
  background: #FCFBF7;
  border: 1px solid #EBE6D9;
  border-radius: 12px;
  padding: 1.4rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: var(--social-text, #2A2725);
  min-height: 150px;
  z-index: 1;
  border-left: 4px solid var(--platform-color);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02), 0 1px 3px rgba(0, 0, 0, 0.02);
}

.social-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06), 0 4px 10px rgba(0, 0, 0, 0.04);
  border-top-color: rgba(42, 39, 37, 0.15);
  border-right-color: rgba(42, 39, 37, 0.15);
  border-bottom-color: rgba(42, 39, 37, 0.15);
}

.social-hover-bg {
  position: absolute;
  inset: 0;
  background-color: var(--platform-color);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
  pointer-events: none;
}

.social-card:hover .social-hover-bg {
  opacity: 0.05;
}

.social-card .card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.social-card .platform-type {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--social-muted, #78716C);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.social-card .platform-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--social-text, #2A2725);
  transition: transform 0.3s ease;
}

.social-card:hover .platform-icon {
  transform: scale(1.1);
}

.social-card .icon-svg {
  width: 100%;
  height: 100%;
}

.social-card .pixiv-badge {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.75rem;
  background: var(--social-text, #2A2725);
  color: #ffffff;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  line-height: 1;
}

.social-card .card-middle {
  margin-bottom: 1.2rem;
  text-align: left;
}

.social-card .platform-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--social-text, #2A2725);
  margin-bottom: 0.25rem;
  transition: color 0.3s ease;
}

.social-card:hover .platform-name {
  color: var(--platform-color);
}

.social-card .platform-url {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--social-muted, #78716C);
  word-break: break-all;
}

.social-card .card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--social-muted, #78716C);
  border-top: 1px dashed rgba(235, 230, 217, 0.8);
  padding-top: 0.6rem;
}

.social-card .platform-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  letter-spacing: 0.08em;
}

.social-card .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--platform-color);
  box-shadow: 0 0 6px var(--platform-color);
}

.social-card .arrow {
  font-size: 0.9rem;
  color: var(--social-text, #2A2725);
  transition: transform 0.3s ease;
}

.social-card:hover .arrow {
  transform: translateX(4px);
}

footer {
  background: var(--hero-bg, #FAF8F2);
  color: var(--social-muted, #78716C);
  padding: 4.5rem 0 3.5rem 0;
  text-align: center;
  border-top: 1px solid #EBE6D9;
}

.footer-container {
  max-width: none;
  width: 100%;
  padding: 0 5vw;
  box-sizing: border-box;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  transition: padding 0.3s ease;
}

@media (max-width: 1300px) {
  .footer-container {
    padding: 0 5vw;
  }
}

.footer-stars {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.6rem;
  color: var(--hero-gold, #E6C575);
  font-size: 1.1rem;
}

.footer-quote {
  font-family: var(--font-jp);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--social-text, #2A2725);
  letter-spacing: 0.12em;
  opacity: 0.85;
  margin: 0.2rem 0;
}

.footer-meta-row {
  width: 100%;
  align-self: stretch;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1.5rem;
}

.footer-meta-left {
  text-align: left;
  white-space: nowrap;
}

.footer-meta-center {
  text-align: center;
  white-space: nowrap;
}

.footer-meta-right {
  text-align: right;
  white-space: nowrap;
}

.portfolio-modal {
  position: fixed;
  inset: 0;
  z-index: 9500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s var(--transition-smooth);
}

.portfolio-modal.active {
  opacity: 1;
  visibility: visible;
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  cursor: pointer;
}

.portfolio-content {
  position: relative;
  width: 95%;
  max-width: 1200px;
  height: 90vh;
  background: var(--lab-bg);
  border-radius: 12px;
  overflow: hidden;
  transform: scale(0.95) translateY(20px);
  transition: transform 0.5s var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
}

.portfolio-modal.active .portfolio-content {
  transform: scale(1) translateY(0);
}

.portfolio-header {
  padding: 1rem 2rem;
  background: #0c0c0e;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.portfolio-header h3 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--hero-gold);
  letter-spacing: 0.1em;
}

.portfolio-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: white;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--hero-gold);
  border-color: var(--hero-gold);
}

.portfolio-body {
  flex: 1;
  width: 100%;
  height: 100%;
  background: #fbfaf7;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.portfolio-images-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  margin: 0;
}

.portfolio-images-list img {
  width: 100%;
  height: auto;
  display: block;
  border: none;
  border-radius: 0;
  background: #eae5db;
}

@media (max-width: 1024px) {
  #hero {
    padding: 0 1.5rem !important;
  }

  .hero-container {
    flex-direction: column;
    padding: 6rem 0 2rem 0;
    justify-content: center;
    gap: 3rem;
  }

  .hero-astrolabe {
    margin-left: auto !important;
    margin-right: auto !important;
  }

  .hero-left {
    width: 100%;
    padding-right: 0;
    text-align: center;
  }

  .hero-right {
    width: 100%;
    justify-content: center;
    margin-top: 2rem;
  }

  .hero-right.reveal {
    transform: translateY(40px);
  }

  .hero-right.reveal.visible {
    transform: translateY(0);
  }

  .hero-title-v0 {
    font-size: 3.5rem;
  }

  .hero-desc-v0 {
    font-family: var(--font-jp);
    font-size: 0.95rem;
    line-height: 2;
    color: var(--hero-text);
    opacity: 0.85;
    margin-bottom: 1.8rem;
    border-left: 2px solid var(--hero-gold);
    padding-left: 1.2rem;
    display: inline-block;
    text-align: left;
    max-width: 100%;
  }

  .vertical-text-v0 {
    display: none;
  }

  .art-frame-bg {
    display: none;
  }

  section {
    padding: 6rem 1.5rem;
  }

  .art-frame-v0 {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .art-frame-v0 img {
    min-height: 280px;
    aspect-ratio: 0.7;
    object-fit: contain;
  }

  .gpts-scene img {
    object-fit: contain !important;
  }

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

  .novel-showcase.right-aligned,
  .novel-showcase.left-aligned {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .novel-cover {
    width: 100%;
    max-width: 260px;
    height: 390px;
    margin: 0 auto;
  }

  .novel-info {
    text-align: center;
    align-items: center;
  }

  .music-player {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .music-now-playing {
    border-left: none;
    padding-left: 0;
    border-bottom: 2px solid var(--music-accent);
    padding-bottom: 1.5rem;
  }

  .music-controls {
    justify-content: center;
  }

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

  .footer-container {
    padding: 0 1.5rem;
  }

  .footer-meta-row {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
  }

  .footer-meta-left,
  .footer-meta-center,
  .footer-meta-right {
    text-align: center;
    white-space: normal;
  }
}

@media (max-width: 768px) {
  .top-logo {
    top: 1rem;
    left: 1rem;
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
  }

  .menu-btn {
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
  }

  .menu-btn .star {
    font-size: 1.8rem;
  }

  .section-header h2 {
    font-size: 2.2rem;
  }

  .social-header h2 {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 300;
    letter-spacing: 0.05em;
    color: var(--social-text, #2A2725);
    margin-bottom: 0.6rem;
  }

  .gpts-stage {
    height: 300px;
    aspect-ratio: auto;
  }
}

@media (max-width: 900px) {
  .social-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .social-grid {
    grid-template-columns: 1fr;
  }

  .loader-text {
    font-size: 1.1rem !important;
    letter-spacing: 0.12em !important;
    gap: 0.05em !important;
  }

  .loader-sub {
    font-size: 0.55rem !important;
    letter-spacing: 0.12em !important;
    padding: 0 1.5rem !important;
    text-align: center !important;
    line-height: 1.6 !important;
  }
}

.img-protect {
  position: relative;
  width: 100%;
  display: block;
  overflow: hidden;
  background: transparent;
}

.art-frame-v0 .img-protect,
.novel-cover .img-protect {
  height: 100%;
}

.img-protect-bg {
  position: absolute;
  inset: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  background-color: #eae5db;
}

.img-protect-img {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  opacity: 0 !important;
  pointer-events: none !important;
  user-select: none !important;
  -webkit-user-drag: none !important;
  z-index: 2;
}

.art-frame-v0 .img-protect-img,
.novel-cover .img-protect-img {
  height: 100% !important;
}

.img-protect-mask {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: transparent;
  pointer-events: auto !important;
  user-select: none !important;
  -webkit-user-drag: none !important;
}

.vinyl-label .img-protect,
.vinyl-label .img-protect-bg,
.vinyl-label .img-protect-img,
.vinyl-label .img-protect-mask {
  border-radius: 50% !important;
}

.btn-gpts {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background: var(--creation-accent);
  border: 1px solid var(--creation-accent);
  color: #fff;
  font-family: var(--font-jp);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.4s var(--transition-smooth);
  text-decoration: none;
  border-radius: 2px;
  width: fit-content;
}

.btn-gpts:hover {
  background: transparent !important;
  color: var(--creation-accent) !important;
}

.btn-apple {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  background: transparent;
  border: 1px solid var(--music-accent);
  color: var(--music-accent);
  font-family: var(--font-jp);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.4s var(--transition-smooth);
  text-decoration: none;
  border-radius: 2px;
  width: fit-content;
}

.btn-apple:hover {
  background: var(--music-accent) !important;
  color: var(--music-bg) !important;
}

.lab-card.reveal {
  opacity: 0;
  transform: translateY(50px) scale(0.98);
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.lab-card.reveal.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.lab-card.reveal.visible:nth-child(1) {
  transition-delay: 0.15s;
}

.lab-card.reveal.visible:nth-child(2) {
  transition-delay: 0.35s;
}

.lab-card.reveal.visible:nth-child(3) {
  transition-delay: 0.55s;
}

.hero-prologue-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--hero-gold);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0.9;
}

.hero-astrolabe {
  width: 120px;
  height: 120px;
  margin-bottom: 1.5rem;
  display: block;
  margin-left: 50px;
}

.astrolabe-outer {
  transform-origin: 50px 50px;
  animation: rotateCounterClockwise 25s linear infinite;
}

.astrolabe-inner {
  transform-origin: 50px 50px;
  animation: rotateClockwise 15s linear infinite;
}

.astrolabe-star {
  transform-origin: 50px 50px;
  animation: starBlink 2.5s ease-in-out infinite;
}

@keyframes rotateClockwise {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes rotateCounterClockwise {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(-360deg);
  }
}

@keyframes starBlink {

  0%,
  100% {
    opacity: 0.35;
    transform: scale(0.85);
  }

  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

@media (max-width: 380px) {
  .top-logo {
    font-size: 0.8rem;
  }

  .hero-signature p:first-child {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
  }

  .hero-meta-v0 {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
  }
}

html.loading,
html.loading body {
  overflow: hidden !important;
  height: 100% !important;
}