:root {
  --bg-dark: #0a0b10;
  --bg-card: #14161f;
  --bg-card-hover: #1c1f2b;
  --text-main: #f0f2f5;
  --text-sub: #9aa3b2;
  --accent: #ffd700;
  --accent-hover: #ffea00;
  --neon-cyan: #00f0ff;
  --neon-purple: #b800ff;
  --border: #2a2e3f;
  --radius: 12px;
  --radius-lg: 24px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; font-family: inherit; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 11, 16, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: transform 0.3s ease;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}
.brand img { height: 32px; width: auto; border-radius: 6px; }
.nav-links {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }
.nav-links a {
  font-size: 14px;
  color: var(--text-sub);
  white-space: nowrap;
  padding: 4px 0;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

/* Hero Carousel */
.hero-section {
  position: relative;
  padding: 120px 0 60px;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: radial-gradient(circle at 50% 0%, rgba(184, 0, 255, 0.15) 0%, transparent 60%);
  overflow: hidden;
}
.particle-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.hero-text h1 {
  font-size: 48px;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #fff;
  text-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
}
.hero-text h1 span {
  color: var(--accent);
}
.hero-text p {
  font-size: 18px;
  color: var(--text-sub);
  margin-bottom: 30px;
}
.download-btns-hero {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 16px;
  font-weight: 600;
  transition: all 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #ffaa00 100%);
  color: #000;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(255, 215, 0, 0.1);
}
.hero-carousel {
  position: relative;
  width: 100%;
  height: 500px;
  perspective: 1000px;
}
.carousel-item {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0,0,0,0.6);
  transition: transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.8s ease, z-index 0.8s;
  opacity: 0;
  transform: translateZ(-100px) rotateY(15deg) scale(0.9);
  z-index: 1;
}
.carousel-item.active {
  opacity: 1;
  transform: translateZ(0) rotateY(0) scale(1);
  z-index: 10;
}
.carousel-item img {
  width: 100%; height: 100%; object-fit: cover;
}
.carousel-item .caption {
  position: absolute;
  bottom: 0; left: 0; width: 100%;
  padding: 40px 20px 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
  color: #fff;
}
.carousel-item .caption h3 { font-size: 22px; margin-bottom: 6px; }
.carousel-item .caption span { font-size: 14px; color: var(--accent); }

/* Section Common */
.section {
  padding: 80px 0;
  position: relative;
}
.section-alt {
  background: linear-gradient(180deg, var(--bg-dark) 0%, #0e1018 50%, var(--bg-dark) 100%);
}
.section-title {
  text-align: center;
  font-size: 32px;
  margin-bottom: 12px;
  color: var(--text-main);
}
.section-desc {
  text-align: center;
  color: var(--text-sub);
  margin-bottom: 48px;
  font-size: 16px;
}

/* Real Life Section - Masonry */
.masonry-grid {
  column-count: 3;
  column-gap: 24px;
}
.masonry-card {
  break-inside: avoid;
  margin-bottom: 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.masonry-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.5);
  border-color: var(--accent);
}
.masonry-card img {
  width: 100%;
  height: auto;
  display: block;
}
.masonry-card .info { padding: 16px; }
.masonry-card .info h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text-main);
}
.tag {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(255, 215, 0, 0.15);
  color: var(--accent);
  font-size: 12px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.masonry-card .info p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.5;
}

/* Original Section - Z Pattern */
.z-list { display: flex; flex-direction: column; gap: 60px; }
.z-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.z-item:nth-child(even) .z-img { order: 2; }
.z-item:nth-child(even) .z-text { order: 1; }
.z-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  border: 1px solid var(--border);
}
.z-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 3/4; }
.z-text { display: flex; flex-direction: column; gap: 16px; }
.z-text h3 { font-size: 26px; color: var(--text-main); }
.z-text .meta {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  color: var(--text-sub);
}
.z-text p { font-size: 16px; color: var(--text-sub); line-height: 1.8; }
.z-text .btn { align-self: flex-start; padding: 10px 20px; font-size: 14px; }

/* Timeline */
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item {
  position: relative;
  margin-bottom: 30px;
  padding-left: 30px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  top: 6px; left: -35px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.timeline-time {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.timeline-content {
  background: var(--bg-card);
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.timeline-content h4 { font-size: 16px; margin-bottom: 4px; }
.timeline-content p { font-size: 14px; color: var(--text-sub); }

/* Wish List */
.wishlist-podium {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 40px;
}
.wish-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--border);
  position: relative;
  flex: 1;
  max-width: 220px;
  transition: transform 0.3s;
}
.wish-card:hover { transform: translateY(-5px); }
.wish-card.rank-1 { transform: scale(1.1); border-color: var(--accent); box-shadow: 0 0 30px rgba(255,215,0,0.15); }
.wish-card.rank-2 { border-color: #c0c0c0; }
.wish-card.rank-3 { border-color: #cd7f32; }
.wish-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  font-size: 12px;
  font-weight: bold;
  padding: 2px 10px;
  border-radius: 10px;
  white-space: nowrap;
}
.wish-card img { width: 100%; border-radius: var(--radius); margin-bottom: 12px; aspect-ratio: 3/4; object-fit: cover; }
.wish-card h4 { font-size: 16px; margin-bottom: 4px; }
.wish-card p { font-size: 12px; color: var(--text-sub); }
.wishlist-list { display: flex; flex-direction: column; gap: 12px; max-width: 600px; margin: 0 auto; }
.wish-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  padding: 12px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.wish-list-item .rank-num { font-size: 20px; font-weight: 700; color: var(--text-sub); width: 30px; }
.wish-list-item .rank-num.top { color: var(--accent); }
.wish-list-item .list-img { width: 40px; height: 56px; border-radius: 4px; object-fit: cover; }
.wish-list-item .list-info { flex: 1; }
.wish-list-item .list-info h4 { font-size: 15px; margin-bottom: 2px; }
.wish-list-item .list-info p { font-size: 12px; color: var(--text-sub); }

/* Fan Chart */
.fan-chart-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 400px;
  position: relative;
  overflow: hidden;
  margin-bottom: 40px;
}
.fan-card {
  position: absolute;
  width: 180px;
  height: 260px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 2px solid var(--border);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  transform-origin: center 150%;
  transform: rotate(calc(var(--rot) * 1deg)) translateY(-20px);
  z-index: var(--z);
}
.fan-card:hover {
  z-index: 50 !important;
  transform: rotate(0) translateY(-40px) scale(1.1);
  border-color: var(--accent);
}
.fan-card img { width: 100%; height: 100%; object-fit: cover; }
.fan-card .fan-title {
  position: absolute;
  bottom: 0; left: 0; width: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
  color: #fff;
  padding: 20px 10px 10px;
  font-size: 14px;
  text-align: center;
}

/* Comments */
.chat-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.chat-bubble {
  display: flex;
  gap: 12px;
  max-width: 80%;
}
.chat-bubble.left { align-self: flex-start; flex-direction: row; }
.chat-bubble.right { align-self: flex-end; flex-direction: row-reverse; }
.chat-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  object-fit: contain;
  background: #222;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.chat-content {
  background: var(--bg-card);
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  font-size: 14px;
  color: var(--text-main);
}
.chat-bubble.right .chat-content {
  background: rgba(255, 215, 0, 0.1);
  border-color: rgba(255, 215, 0, 0.3);
  border-bottom-right-radius: 4px;
}
.chat-bubble.left .chat-content {
  border-bottom-left-radius: 4px;
}

/* Privacy & FAQ */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
  align-items: start;
}
.privacy-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.shield-icon {
  width: 120px; height: 120px;
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(184, 0, 255, 0.1) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.2);
}
.shield-icon svg { width: 60px; height: 60px; fill: var(--neon-cyan); }
.accordion { display: flex; flex-direction: column; gap: 12px; }
.acc-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}
.acc-header {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}
.acc-header::after {
  content: '+';
  font-size: 18px;
  color: var(--accent);
  transition: transform 0.2s;
}
.acc-item.open .acc-header::after { transform: rotate(45deg); }
.acc-body {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}
.acc-item.open .acc-body { padding: 0 20px 16px; max-height: 200px; }

/* FAQ Grid */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.faq-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
}
.faq-card h4 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--accent);
}
.faq-card p { font-size: 14px; color: var(--text-sub); }

/* Download Section */
.download-section {
  text-align: center;
  padding: 80px 0;
  background: radial-gradient(circle at 50% 100%, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
}
.download-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 50px;
}
.step-card {
  background: var(--bg-card);
  padding: 30px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.step-num {
  display: inline-block;
  width: 40px; height: 40px;
  line-height: 40px;
  background: var(--accent);
  color: #000;
  border-radius: 50%;
  font-weight: bold;
  font-size: 18px;
  margin-bottom: 16px;
}
.step-card h4 { font-size: 18px; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-sub); }
.download-qr {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-bottom: 40px;
  padding: 30px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  max-width: 600px;
  margin-left: auto; margin-right: auto;
}
.qr-img { width: 140px; height: 140px; border-radius: 8px; background: #fff; padding: 8px; }
.qr-text { text-align: left; }
.qr-text h4 { font-size: 20px; margin-bottom: 8px; }
.qr-text p { font-size: 14px; color: var(--text-sub); }
.download-btns-center {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background: #050609;
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}
.site-footer p { font-size: 14px; color: var(--text-sub); margin-bottom: 10px; }
.site-footer .update-time { font-size: 12px; color: #556; }

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  position: relative;
}
.modal-box h3 { font-size: 18px; margin-bottom: 16px; color: var(--text-main); }
.modal-box .url-text {
  background: var(--bg-dark);
  padding: 12px;
  border-radius: 8px;
  font-family: monospace;
  font-size: 14px;
  color: var(--accent);
  word-break: break-all;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}
.modal-box .copy-btn { width: 100%; padding: 12px; }
.modal-close {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 24px;
  color: var(--text-sub);
  background: none;
  cursor: pointer;
}

/* Back to top */
.back-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
  cursor: pointer;
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { border-color: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .download-btns-hero { justify-content: center; }
  .hero-carousel { height: 400px; max-width: 500px; margin: 0 auto; }
  .masonry-grid { column-count: 2; }
  .z-item { grid-template-columns: 1fr; }
  .z-item:nth-child(even) .z-img { order: 1; }
  .z-item:nth-child(even) .z-text { order: 2; }
  .z-text .btn { align-self: center; }
  .z-text { text-align: center; align-items: center; }
  .split-layout { grid-template-columns: 1fr; }
  .wishlist-podium { flex-wrap: wrap; }
  .wish-card { min-width: 140px; }
  .download-steps { grid-template-columns: 1fr; }
  .download-qr { flex-direction: column; text-align: center; }
  .qr-text { text-align: center; }
}
@media (max-width: 768px) {
  .hero-text h1 { font-size: 32px; }
  .hero-text p { font-size: 16px; }
  .section { padding: 50px 0; }
  .section-title { font-size: 26px; }
  .masonry-grid { column-count: 1; }
  .faq-grid { grid-template-columns: 1fr; }
  .chat-bubble { max-width: 90%; }
  .header-inner { height: 56px; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 13px; }
  .fan-chart-container { height: 320px; }
  .fan-card { width: 130px; height: 190px; }
  .wishlist-podium { gap: 10px; }
  .wish-card.rank-1 { transform: scale(1); }
  .back-top { bottom: 10px; right: 10px; }
  .download-btns-center { flex-direction: column; align-items: center; }
  .download-btns-center .btn { width: 100%; max-width: 300px; }
}