:root {
  --bg-0: #f5f2e9;
  --bg-1: #ddd3bd;
  --bg-2: #c5b18f;
  --ink-1: #2f2a20;
  --ink-2: #51473a;
  --accent: #2f4f4f;
  --card: #fdfaf2;
  --line: rgba(54, 45, 32, 0.22);
  --shadow-1: 0 12px 26px rgba(39, 33, 24, 0.18);
  --shadow-2: 0 30px 70px rgba(35, 28, 18, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  color: var(--ink-1);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Helvetica Neue", sans-serif;
  letter-spacing: 0.02em;
  background: linear-gradient(145deg, var(--bg-0) 0%, var(--bg-1) 48%, var(--bg-2) 100%);
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 251, 240, 0.82) 0, rgba(255, 251, 240, 0) 42%),
    radial-gradient(circle at 82% 74%, rgba(80, 57, 24, 0.22) 0, rgba(80, 57, 24, 0) 58%),
    radial-gradient(circle at 50% 58%, rgba(255, 246, 229, 0.6) 0, rgba(255, 246, 229, 0) 56%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(66, 53, 37, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66, 53, 37, 0.055) 1px, transparent 1px);
  background-size: 46px 46px;
  mix-blend-mode: multiply;
  opacity: 0.3;
}

.topbar {
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  z-index: 20;
  pointer-events: none;
}

.brand-wrap {
  background: rgba(253, 248, 237, 0.98);
  border: 1px solid rgba(80, 64, 41, 0.22);
  border-radius: 18px;
  backdrop-filter: none;
  padding: 12px 18px;
  box-shadow: var(--shadow-1);
}

.brand-eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-2);
}

.brand-title {
  margin: 4px 0 0;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.05;
  font-weight: 550;
  font-family: "Bodoni 72", "Songti SC", "STSong", serif;
}

.wall-stats {
  margin: 8px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(53, 44, 32, 0.78);
}

.brand-tip {
  margin: 0;
  font-size: 13px;
  color: rgba(46, 39, 28, 0.9);
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(76, 60, 39, 0.22);
  background: rgba(250, 245, 234, 0.82);
  box-shadow: var(--shadow-1);
}

#viewport {
  position: fixed;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
  touch-action: pan-y;
}

#viewport.dragging {
  cursor: grabbing;
}

#wall {
  position: relative;
  width: 100%;
  min-height: 100%;
}

.island {
  position: absolute;
  border-radius: 0;
  overflow: visible;
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
  transform: rotate(var(--card-angle, 0deg));
  transition: transform 220ms ease;
  animation: island-enter 900ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
  animation-delay: var(--delay);
}

.island:hover {
  transform: rotate(var(--card-angle, 0deg)) translateY(-4px);
}

.polaroid-card {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 18px 10px 40px;
  background: #fffdf8;
  border: 1px solid rgba(65, 53, 35, 0.25);
  box-shadow:
    0 14px 28px rgba(25, 18, 10, 0.24),
    0 4px 7px rgba(22, 16, 10, 0.18);
}

.polaroid-card::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 10px;
  height: 14px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0));
  opacity: 0.18;
}

.pin-dot {
  position: absolute;
  top: -9px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff9d0 0%, #f9ce6b 38%, #b85e30 100%);
  box-shadow:
    0 1px 1px rgba(0, 0, 0, 0.35),
    0 7px 10px rgba(0, 0, 0, 0.18);
  border: 1px solid rgba(109, 63, 25, 0.45);
  z-index: 3;
}

.photo-window {
  width: 100%;
  height: 100%;
  border: 1px solid rgba(50, 39, 25, 0.28);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.55);
}

.island-cover {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  object-position: center;
  background: transparent;
  filter: none;
}

.detail-modal {
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  z-index: 60;
}

.detail-modal.active {
  display: grid;
}

.detail-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(17, 14, 10, 0.65);
  backdrop-filter: blur(3px);
}

.detail-shell {
  position: relative;
  width: min(1120px, 94vw);
  height: min(760px, 90vh);
  display: grid;
  grid-template-columns: minmax(340px, 1.5fr) minmax(270px, 1fr);
  gap: 18px;
  z-index: 1;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 250, 240, 0.25);
  background:
    linear-gradient(158deg, rgba(255, 249, 236, 0.98) 0%, rgba(242, 232, 209, 0.98) 58%, rgba(224, 209, 179, 0.98) 100%);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.35);
  animation: modal-rise 260ms ease;
  overflow-y: auto;
}

.close-btn {
  position: absolute;
  right: 14px;
  top: 14px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(68, 54, 35, 0.26);
  background: rgba(255, 252, 243, 0.92);
  color: var(--ink-1);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  z-index: 4;
}

.gallery-panel {
  padding: 18px 20px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.gallery-main-wrap {
  position: relative;
  flex: 1;
  min-height: 0;
  aspect-ratio: var(--cover-ratio, 4 / 3);
  border-radius: 0;
  overflow: hidden;
  background: #090909;
  border: 1px solid rgba(84, 62, 32, 0.22);
}

.gallery-main {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #090909;
}

.gallery-nav {
  position: absolute;
  inset: auto 14px 14px auto;
  display: flex;
  gap: 8px;
}

.nav-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(63, 46, 22, 0.24);
  background: rgba(255, 248, 235, 0.88);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.thumb-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
  gap: 10px;
}

.thumb-btn {
  border: 1px solid rgba(64, 50, 30, 0.25);
  border-radius: 0;
  overflow: hidden;
  background: rgba(255, 251, 241, 0.95);
  padding: 0;
  cursor: pointer;
  aspect-ratio: 1 / 1;
  opacity: 0.7;
  transition: opacity 160ms ease, transform 160ms ease;
}

.thumb-btn.active {
  opacity: 1;
  transform: translateY(-2px);
  border-color: rgba(47, 79, 79, 0.72);
}

.thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #090909;
}

.detail-panel {
  position: relative;
  padding: 30px 24px 20px;
  border-left: 1px solid rgba(79, 62, 36, 0.17);
  background: linear-gradient(180deg, rgba(255, 250, 240, 0.88), rgba(245, 232, 205, 0.78));
  overflow: visible;
}

.detail-code {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.26em;
  color: rgba(53, 44, 32, 0.72);
}

.detail-title {
  margin: 8px 0 18px;
  font-family: "Bodoni 72", "Songti SC", "STSong", serif;
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.1;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(255, 253, 247, 0.68);
}

.field-label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(63, 55, 45, 0.74);
  margin-bottom: 6px;
}

.field-value {
  display: block;
  font-size: 16px;
  min-height: 22px;
}

.summary-wrap {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255, 252, 246, 0.72);
}

.summary-title {
  margin: 0 0 10px;
  font-size: 14px;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.summary-text {
  margin: 0;
  min-height: 136px;
  line-height: 1.66;
  color: rgba(46, 36, 23, 0.92);
  white-space: pre-line;
}

.slide-indicator {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(53, 44, 32, 0.72);
}

@keyframes island-enter {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.96);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes modal-rise {
  from {
    opacity: 0;
    transform: translateY(22px) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 920px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .brand-tip {
    font-size: 12px;
  }

  .detail-shell {
    width: min(760px, 96vw);
    height: min(92vh, 860px);
    grid-template-columns: 1fr;
    grid-template-rows: 1.2fr 1fr;
  }

  .detail-panel {
    padding: 18px 16px 16px;
    border-left: 0;
    border-top: 1px solid rgba(79, 62, 36, 0.17);
    overflow: visible;
  }

  .summary-text {
    min-height: 96px;
  }
}