/* ============================
   马灯舞 · 海宁连潮文化
   数字文创展台 · 样式表
   ============================ */

/* ----- 基础重置与变量 ----- */
:root {
  --color-deep: #1a0f0a;
  --color-warm: #3d2b1f;
  --color-amber: #c8944a;
  --color-gold: #d4a853;
  --color-light: #f5e6c8;
  --color-parchment: #f0e0c0;
  --color-red: #9b2c2c;
  --color-text: #2c1810;
  --color-text-light: #6b5342;
  --font-title: "STKaiti", "KaiTi", "楷体", "Noto Serif SC", serif;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow: 0 4px 20px rgba(0,0,0,0.15);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-deep);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ----- 占位符通用样式 ----- */
[class$="placeholder"] {
  background: linear-gradient(135deg, rgba(200,148,74,0.08), rgba(61,43,31,0.15));
  border: 2px dashed rgba(200,148,74,0.35);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 160px;
  color: var(--color-amber);
  font-size: 0.95rem;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

[class$="placeholder"]::before {
  content: "📎";
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 14px;
  opacity: 0.5;
}

/* ============================
   导航栏
   ============================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 68px;
  background: rgba(26,15,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200,148,74,0.2);
  transition: var(--transition);
}

.nav-logo {
  font-family: var(--font-title);
  font-size: 1.35rem;
  color: var(--color-gold);
  letter-spacing: 4px;
}

.nav-links { display: flex; gap: 8px; }

.nav-link {
  color: var(--color-parchment);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 8px 20px;
  border-radius: 6px;
  transition: var(--transition);
  letter-spacing: 2px;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-gold);
  background: rgba(200,148,74,0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-gold);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============================
   首页 - Hero
   ============================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 24px 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../assets/hero-bg.jpg') center/cover no-repeat;
  opacity: 0;
  transition: opacity 0.8s;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,15,10,0.85) 0%, rgba(61,43,31,0.7) 50%, rgba(26,15,10,0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  color: #000000;
}

.hero-title {
  font-family: var(--font-title);
  font-size: clamp(2.4rem, 6vw, 4rem);
  color: #e8c55a;
  letter-spacing: 12px;
  margin-bottom: 16px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}

.hero-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  color: #d4a853;
  letter-spacing: 3px;
  opacity: 1;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.hero-divider {
  color: #e8c55a;
  font-size: 1.4rem;
  margin: 24px 0;
  letter-spacing: 8px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

.hero-desc {
  color: #d4a853;
  font-size: 1rem;
  line-height: 2;
  opacity: 1;
  text-shadow: 0 1px 8px rgba(0,0,0,0.4);
}

/* 首页主题入口卡片 */
.theme-cards {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1200px;
  width: 100%;
  margin-top: 48px;
}

.theme-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  text-decoration: none;
  border: none;
  transition: var(--transition);
}

.theme-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(212,168,83,0.15);
}

.card-inner {
  position: absolute;
  inset: 0;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 24px;
  text-align: center;
}

.card-inner h3 {
  font-family: var(--font-title);
  font-size: 1.4rem;
  color: #000000;
  letter-spacing: 4px;
  margin-bottom: 4px;
  height: 50px;
}

.card-inner p {
  color: #000000;
  font-size: 0.85rem;
  opacity: 1;
  margin-bottom: 8px;
  height: 30px;
}

.card-tag {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-amber);
  background: rgba(200,148,74,0.15);
  padding: 3px 12px;
  border-radius: 20px;
  border: 1px solid rgba(200,148,74,0.25);
  letter-spacing: 2px;
  align-self: flex-start;
}

/* 科普视频入口按钮 */
.hero-btn-wrap {
  position: relative;
  z-index: 2;
  margin-top: 32px;
  text-align: center;
}

.hero-btn {
  display: inline-block;
  padding: 14px 40px;
  font-family: var(--font-title);
  font-size: 1.05rem;
  letter-spacing: 4px;
  color: #1a1a2e;
  background: linear-gradient(135deg, #e8c55a, #d4a853);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(212,168,83,0.3);
}

.hero-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(232,197,90,0.4);
  background: linear-gradient(135deg, #f0d070, #e0b860);
}

.hero-btn:active {
  transform: translateY(0);
}

.theme-section {
  position: relative;
  padding: 100px 48px 80px;
  min-height: 100vh;
}

.theme-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: 0;
  transition: opacity 0.8s;
  z-index: 0;
}

.theme-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(26,15,10,0.88);
  z-index: 0;
}

.section-header {
  position: relative;
  z-index: 1;
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-family: var(--font-title);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--color-gold);
  letter-spacing: 8px;
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 1rem;
  color: #000000;
  opacity: 1;
  letter-spacing: 3px;
}

/* 展示区 */
.exhibit-area {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto 48px;
}

.exhibit-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.exhibit-image {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 12px;
  display: block;
  cursor: pointer;
  transition: var(--transition);
}

.exhibit-image:hover {
  opacity: 0.9;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.exhibit-gallery [class$="placeholder"] {
  min-height: 180px;
}

.exhibit-desc {
  background: rgba(200,148,74,0.06);
  border-left: 3px solid var(--color-amber);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
}

.exhibit-desc p {
  color: #000000;
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 1;
}

/* 互动区块 */
.interaction-block {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto 56px;
  padding: 32px;
  background: rgba(255,255,255,0.03);
  border-radius: 16px;
  border: 1px solid rgba(200,148,74,0.12);
}

.interaction-title {
  font-family: var(--font-title);
  font-size: 1.3rem;
  color: #000000;
  letter-spacing: 3px;
  margin-bottom: 8px;
}

.interaction-theme {
  color: #d4a853;
  font-size: 0.9rem;
  font-style: italic;
  margin-bottom: 24px;
  opacity: 1;
  text-shadow: 0 1px 6px rgba(0,0,0,0.35);
}

/* 滑块交互 */
.slider-interaction {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.slider-viewport {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0,0,0,0.3);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: none;
}

.slider-video.loaded {
  display: block;
}

.slider-video.loaded + .slider-placeholder {
  display: none;
}

.slider-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.slider-placeholder span {
  color: var(--color-amber);
  font-size: 1rem;
  opacity: 0.6;
}

.slider-placeholder p {
  color: var(--color-parchment);
  font-size: 0.8rem;
  opacity: 0.4;
}

.slider-control {
  display: flex;
  align-items: center;
  gap: 16px;
}

.slider-label {
  color: var(--color-parchment);
  font-size: 0.85rem;
  opacity: 0.6;
  white-space: nowrap;
  min-width: 32px;
  text-align: center;
}

.slider-input {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--color-warm), var(--color-amber));
  outline: none;
  cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-gold);
  border: 2px solid var(--color-deep);
  box-shadow: 0 0 8px rgba(212,168,83,0.4);
  cursor: pointer;
  transition: var(--transition);
}

.slider-input::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* 热点交互 */
.hotspot-container {
  width: 100%;
}

.hotspot-image-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
}

.hotspot-image-wrap [class$="placeholder"] {
  width: 100%;
  min-height: 400px;
}

.hotspot-dot {
  position: absolute;
  width: 36px;
  height: 36px;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}

.dot-pulse {
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: rgba(200,148,74,0.7);
  box-shadow: 0 0 12px rgba(212,168,83,0.5);
  animation: pulse 2s ease-in-out infinite;
}

.hotspot-dot:hover .dot-pulse {
  background: rgba(212,168,83,0.9);
  box-shadow: 0 0 20px rgba(212,168,83,0.7);
}

/* 热点脉冲位置微调（基于结构图） */
.hotspot-dot[data-id="1"] .dot-pulse {
  width: 63px;
  height: 61px;
  padding-top: 29px;
  padding-bottom: 29px;
}

.hotspot-dot[data-id="2"] .dot-pulse {
  left: 6px;
  z-index: 16;
  top: 3px;
  width: 65px;
  height: 71px;
  padding-top: 23px;
  padding-bottom: 23px;
  padding-left: 3px;
  padding-right: 3px;
  margin-top: -35px;
  margin-bottom: -35px;
  margin-left: 62px;
  margin-right: 62px;
}

.hotspot-dot[data-id="3"] .dot-pulse {
  padding-top: 35px;
  padding-bottom: 35px;
  padding-left: 33px;
  padding-right: 33px;
  width: 73px;
  height: 54px;
  margin-top: 7px;
  margin-bottom: 7px;
  margin-left: -45px;
  margin-right: -45px;
}

.dot-label {
  position: absolute;
  left: 44px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  color: var(--color-light);
  font-size: 0.8rem;
  background: rgba(26,15,10,0.85);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(200,148,74,0.3);
  opacity: 0;
  transition: var(--transition);
  pointer-events: none;
}

.hotspot-dot:hover .dot-label {
  opacity: 1;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background: var(--color-warm);
  border: 1px solid rgba(200,148,74,0.3);
  border-radius: 16px;
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
  position: relative;
  animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
  from { transform: scale(0.9) translateY(20px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  color: var(--color-light);
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0.6;
  transition: var(--transition);
}

.modal-close:hover { opacity: 1; }

.modal-title {
  font-family: var(--font-title);
  color: var(--color-gold);
  font-size: 1.3rem;
  margin-bottom: 16px;
  letter-spacing: 3px;
}

.modal-media {
  margin-bottom: 16px;
}

.modal-img {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(0,0,0,0.2);
  display: block;
}

.modal-desc {
  color: var(--color-light);
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.85;
}

.modal-desc {
  color: var(--color-light);
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.85;
}

/* 图片查看弹窗 */
.image-viewer-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  background: rgba(0,0,0,0.85);
  border-radius: 12px;
  padding: 16px;
  animation: modalIn 0.3s ease-out;
}

.image-viewer-close {
  color: #fff;
  font-size: 1.6rem;
  z-index: 10;
}

.image-viewer-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  justify-content: center;
}

.image-zoom-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  color: #fff;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-zoom-btn:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.5);
}

.image-zoom-level {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  min-width: 48px;
  text-align: center;
  font-family: var(--font-title);
}

.image-viewer-body {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  max-height: calc(90vh - 80px);
}

.image-viewer-img {
  max-width: 100%;
  max-height: calc(90vh - 80px);
  object-fit: contain;
  transition: transform 0.2s ease;
  cursor: zoom-in;
}

.image-viewer-img.zoomed {
  cursor: grab;
}

.image-viewer-img.dragging {
  cursor: grabbing;
}

/* 动作视频弹窗播放器 */
.action-video-player {
  width: 100%;
  max-width: 800px;
  max-height: 70vh;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
  object-fit: contain;
  background: #000;
}

/* 制作工序 */
.craft-steps { width: 100%; }

.step-nav {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  justify-content: center;
}

.step-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(200,148,74,0.3);
  background: transparent;
  color: var(--color-parchment);
  font-family: var(--font-title);
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}

.step-btn.active, .step-btn:hover {
  background: var(--color-amber);
  color: var(--color-deep);
  border-color: var(--color-gold);
  box-shadow: 0 0 16px rgba(212,168,83,0.3);
}

.step-names {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.step-name {
  color: var(--color-text-light);
  font-size: 0.85rem;
  padding: 4px 12px;
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 1px;
}

.step-name.active {
  color: var(--color-gold);
  background: rgba(200,148,74,0.1);
}

.step-content {
  position: relative;
}

.step-panel {
  display: none;
  flex-direction: column;
  gap: 16px;
  animation: fadeIn 0.4s ease-out;
}

.step-panel.active { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}



.step-video {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: 8px;
  display: block;
}

.step-text {
  color: var(--color-light);
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.8;
  text-align: center;
}

/* 收尾文案 */
.closing-text {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 32px 24px;
  border-top: 1px solid rgba(200,148,74,0.15);
}

.closing-text p {
  font-family: var(--font-title);
  font-size: 1.1rem;
  color: var(--color-amber);
  letter-spacing: 3px;
  line-height: 2;
}

.grand-closing p {
  font-size: 25px;
  font-weight: bold;
  color: #6f641b;
  height: 152px;
  width: 579px;
}

/* ============================
   主题二：慎·循步
   ============================ */
.formation-selector {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

.formation-btn {
  padding: 10px 28px;
  border: 1px solid rgba(200,148,74,0.3);
  border-radius: 8px;
  background: transparent;
  color: #000000;
  font-size: 0.95rem;
  font-family: var(--font-title);
  letter-spacing: 3px;
  cursor: pointer;
  transition: var(--transition);
}

.formation-btn.active {
  background: var(--color-amber);
  color: #000000;
  border-color: var(--color-gold);
  box-shadow: 0 0 16px rgba(212,168,83,0.2);
}

.formation-btn:hover {
  border-color: var(--color-gold);
  color: #000000;
}

.formation-btn.active:hover {
  color: #000000;
}

.formation-info {
  display: none;
  animation: fadeIn 0.4s ease-out;
}

.formation-info.active {
  display: block;
}

.formation-meaning {
  color: #000000;
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 1;
  margin-bottom: 8px;
  text-align: center;
}

.formation-annotation {
  font-family: var(--font-title);
  color: var(--color-amber);
  font-size: 0.95rem;
  text-align: center;
  margin-bottom: 20px;
  letter-spacing: 2px;
  padding: 12px;
  background: rgba(200,148,74,0.06);
  border-radius: 8px;
}

/* ============================
   主题三：勤·成艺
   ============================ */
.action-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.action-card {
  border: 1px solid rgba(200,148,74,0.15);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255,255,255,0.02);
  transition: var(--transition);
  cursor: pointer;
}

.action-card:hover {
  border-color: var(--color-gold);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(212,168,83,0.1);
}

.action-card-front {
  padding: 20px;
  text-align: center;
}

.action-card-front h4 {
  font-family: var(--font-title);
  color: var(--color-gold);
  font-size: 1.1rem;
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.action-card-img {
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: 8px;
  margin-bottom: 12px;
  min-height: 160px;
  background: rgba(0,0,0,0.1);
}

.action-original {
  color: var(--color-text-light);
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.action-badge {
  display: inline-block;
  font-size: 0.75rem;
  color: var(--color-amber);
  background: rgba(200,148,74,0.1);
  padding: 3px 12px;
  border-radius: 20px;
  border: 1px solid rgba(200,148,74,0.2);
  letter-spacing: 1px;
}

.action-card-back {
  display: none;
  padding: 20px;
  border-top: 1px solid rgba(200,148,74,0.1);
}

.action-card-back.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

.action-gif-placeholder {
  text-align: center;
}

.action-gif {
  max-width: 100%;
  max-height: 240px;
  border-radius: 8px;
  display: none;
}

.action-gif-fallback {
  color: var(--color-amber);
  font-size: 0.85rem;
  opacity: 0.6;
  padding: 40px 20px;
}

.action-gif.loaded {
  display: inline-block;
}

.action-gif.loaded + .action-gif-fallback {
  display: none;
}

/* ============================
   页脚
   ============================ */
.site-footer {
  position: relative;
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid rgba(200,148,74,0.1);
}

.site-footer p {
  color: var(--color-text-light);
  font-size: 0.85rem;
  letter-spacing: 2px;
}

.footer-meta {
  font-size: 0.75rem;
  opacity: 0.5;
  margin-top: 4px;
}

/* ============================
   响应式
   ============================ */
@media (max-width: 768px) {
  .navbar { padding: 0 16px; }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(26,15,10,0.98);
    padding: 16px;
    border-bottom: 1px solid rgba(200,148,74,0.2);
  }

  .nav-links.open { display: flex; }

  .nav-toggle { display: block; }

  .theme-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .theme-card { aspect-ratio: 4 / 3; }

  .theme-section { padding: 80px 16px 60px; }

  .exhibit-gallery { grid-template-columns: 1fr; }

  .interaction-block { padding: 20px; }

  .action-cards { grid-template-columns: 1fr; }

  .hero { padding: 80px 16px 40px; }
}