/* 馒有花样 — 与全站 style.css 一致：蓝色背景、红色线条/强调 */

/* 模块统一色：背景用 --accent-light，描边/进度用 --primary */

.huayang-modules {
  position: sticky;
  top: var(--nav-h);
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.huayang-modules-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.huayang-modules-inner::-webkit-scrollbar {
  display: none;
}

.huayang-module-tab {
  flex-shrink: 0;
  padding: 8px 16px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-soft);
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

a.huayang-module-tab:hover {
  color: var(--primary);
  border-color: rgba(196, 30, 58, 0.25);
}

.huayang-module-tab.is-active {
  color: var(--surface);
  background: var(--primary);
  border-color: var(--primary);
}

.huayang-module-tab.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.huayang-map-section,
.huayang-yantai-section,
.huayang-timeline-section,
.huayang-steps-section,
.huayang-tools-section {
  scroll-margin-top: calc(var(--nav-h) + 52px);
}

.huayang-map-section {
  padding-top: 48px;
}

.huayang-map-section .section-desc {
  margin-bottom: 20px;
}

.map-guide {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  padding: 10px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: opacity 0.25s;
}

.map-guide::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}

#map-guide.is-dismissed {
  opacity: 0.75;
}

.map-layout--china {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
  gap: 28px;
  align-items: stretch;
  max-width: 1120px;
  margin: 0 auto;
}

.map-layout__map {
  min-width: 0;
}

.map-panel {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.map-panel--china {
  max-width: none;
  margin: 0;
  padding: 12px 16px 10px;
  background: #fff;
  border-color: rgba(196, 30, 58, 0.22);
}

.map-stage {
  position: relative;
  width: 100%;
  touch-action: manipulation;
}

.map-stage--china {
  aspect-ratio: 900 / 780;
  min-height: 0;
  line-height: 0;
}

.map-china-bg {
  pointer-events: none;
}

.map-bg-province {
  fill: #e2eaf2;
  stroke: #b8c9d8;
  stroke-width: 0.6;
  stroke-linejoin: round;
  pointer-events: none;
}

.map-china-frame {
  pointer-events: none;
}

.map-frame-stroke {
  fill: none;
  stroke: #a8bdd0;
  stroke-width: 0.9;
  stroke-linejoin: round;
  pointer-events: none;
}

#china-bun-map {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: top;
  user-select: none;
}

.map-ocean {
  fill: #fff;
}

.map-region {
  cursor: pointer;
  outline: none;
}

.region-shape {
  fill: var(--primary-light);
  stroke: rgba(196, 30, 58, 0.45);
  stroke-width: 1.8;
  stroke-linejoin: round;
  stroke-linecap: round;
  transition: fill 0.28s ease, stroke 0.28s ease, filter 0.28s ease;
}

.region-label {
  font-family: var(--font);
  font-size: 14px;
  font-weight: 700;
  fill: var(--primary-dark);
  pointer-events: none;
  paint-order: stroke fill;
  stroke: var(--surface);
  stroke-width: 3px;
  stroke-linejoin: round;
  transition: fill 0.28s ease, stroke 0.28s ease;
}

.region-sublabel {
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  fill: var(--primary);
  pointer-events: none;
  paint-order: stroke fill;
  stroke: var(--surface);
  stroke-width: 2px;
}

.map-region:hover .region-shape,
.map-region:focus-visible .region-shape {
  fill: #f5d4da;
  stroke: var(--primary);
  filter: brightness(1.06) drop-shadow(0 2px 6px rgba(196, 30, 58, 0.15));
}

.map-region:hover .region-label,
.map-region:focus-visible .region-label {
  fill: var(--primary-dark);
}

.map-region.is-active .region-shape {
  fill: var(--primary);
  stroke: #9e1830;
  stroke-width: 2.2;
  filter: url(#region-glow) drop-shadow(0 4px 12px rgba(196, 30, 58, 0.35));
}

.map-region.is-active .region-label,
.map-region.is-active .region-sublabel {
  fill: #fff;
  stroke: rgba(158, 24, 48, 0.5);
  stroke-width: 1px;
}

.map-region[data-region='shandong'].is-active .region-shape {
  fill: #c41e3a;
}

.map-caption {
  margin-top: 10px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-soft);
  line-height: 1.4;
}

.map-panel--china .map-caption {
  margin-top: 8px;
}

.region-card-wrap--side {
  position: sticky;
  top: calc(var(--nav-h) + 72px);
  align-self: start;
  min-height: 420px;
}

.region-panel-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 420px;
  padding: 32px 24px;
  text-align: center;
  background: linear-gradient(165deg, var(--accent-light) 0%, var(--surface) 100%);
  border: 2px dashed rgba(196, 30, 58, 0.35);
  border-radius: var(--radius-lg);
  color: var(--ink-soft);
}

.region-panel-empty[hidden] {
  display: none;
}

.region-panel-empty__icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
  opacity: 0.85;
}

.region-panel-empty p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.region-panel-empty__hint {
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--ink-soft) !important;
}

.region-detail-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateX(12px);
  pointer-events: none;
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.region-detail-card.is-visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.region-detail-media {
  margin: 0;
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--accent-light);
  border-bottom: 1px solid var(--border);
}

.region-detail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.region-detail-img[hidden] {
  display: none;
}

.region-detail-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  height: 100%;
  min-height: 160px;
  padding: 20px;
  background: linear-gradient(145deg, var(--accent-light) 0%, #dce8f0 100%);
  color: var(--ink-soft);
}

.region-detail-img-placeholder[hidden] {
  display: none;
}

.region-detail-img-placeholder__label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent);
}

.region-detail-img-placeholder__path {
  font-family: ui-monospace, monospace;
  font-size: 0.72rem;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  border: 1px dashed rgba(196, 30, 58, 0.2);
  color: var(--ink-soft);
  word-break: break-all;
}

.region-detail-card .region-detail-head {
  margin: 0;
  padding: 20px 22px 14px;
  border-bottom: none;
}

.region-detail-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0 22px 22px;
}

.region-detail-head {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.region-detail-head .card-tag {
  margin-bottom: 10px;
}

.region-detail-title {
  font-family: var(--font-kai);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 6px;
}

.region-detail-subtitle {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.region-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.region-card-wrap--side .region-detail-block {
  padding: 14px 16px;
}

.region-detail-block {
  padding: 18px 20px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.region-detail-block--alt {
  background: var(--primary-light);
  border-color: rgba(196, 30, 58, 0.12);
}

.region-detail-block h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}

.region-detail-block p {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* —— 模块② 烟台传承人地图 —— */
.huayang-yantai-section {
  padding-top: 48px;
}

.yantai-layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 360px);
  gap: 28px;
  align-items: start;
  margin-top: 8px;
}

.yantai-map-col .map-guide {
  margin-bottom: 20px;
}

.yantai-map-panel {
  max-width: none;
  margin: 0;
  background: #fff;
  border-color: rgba(196, 30, 58, 0.22);
}

.yantai-map-stage {
  aspect-ratio: 820 / 720;
  min-height: 300px;
}

#yantai-bun-map {
  width: 100%;
  height: 100%;
  display: block;
  user-select: none;
}

.yantai-ocean {
  fill: #fff;
}

.yantai-land-base {
  pointer-events: none;
}

.yantai-land-fill {
  fill: #e2eaf2;
  stroke: #b8c9d8;
  stroke-width: 0.6;
  stroke-linejoin: round;
  pointer-events: none;
}

.yantai-frame {
  pointer-events: none;
}

.yantai-frame-stroke {
  fill: none;
  stroke: #a8bdd0;
  stroke-width: 0.8;
  stroke-linejoin: round;
  pointer-events: none;
}

.yantai-district {
  cursor: pointer;
  outline: none;
}

.district-shape {
  fill: var(--primary-light);
  stroke: rgba(196, 30, 58, 0.45);
  stroke-width: 1.4;
  stroke-linejoin: round;
  stroke-linecap: round;
  transition: fill 0.28s ease, stroke 0.28s ease, filter 0.28s ease;
}

.district-label {
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  fill: var(--primary-dark);
  pointer-events: none;
  paint-order: stroke fill;
  stroke: var(--surface);
  stroke-width: 2.5px;
  stroke-linejoin: round;
  transition: fill 0.28s ease, stroke 0.28s ease;
}

.yantai-district:hover .district-shape,
.yantai-district:focus-visible .district-shape {
  fill: #f5d4da;
  stroke: var(--primary);
  filter: brightness(1.06) drop-shadow(0 2px 6px rgba(196, 30, 58, 0.12));
}

.yantai-district:hover .district-label,
.yantai-district:focus-visible .district-label {
  fill: var(--primary-dark);
}

.yantai-district.is-active .district-shape {
  fill: var(--primary);
  stroke: #9e1830;
  stroke-width: 1.8;
  filter: url(#yantai-glow) drop-shadow(0 4px 10px rgba(196, 30, 58, 0.28));
}

.yantai-district.is-active .district-label {
  fill: #fff;
  stroke: rgba(158, 24, 48, 0.45);
  stroke-width: 1px;
}

#yantai-guide.is-dismissed {
  opacity: 0.75;
}

.yantai-card-col {
  position: sticky;
  top: calc(var(--nav-h) + 56px);
  min-height: 280px;
}

.yantai-card-empty {
  padding: 32px 24px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.yantai-card-empty[hidden] {
  display: none;
}

.yantai-inheritor-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px 22px;
  opacity: 0;
  transform: translateX(12px);
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.yantai-inheritor-card.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.yantai-inheritor-head {
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.yantai-inheritor-head .card-tag {
  margin-bottom: 8px;
}

.yantai-inheritor-district {
  font-family: var(--font-kai);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--ink);
}

.yantai-inheritor-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.yantai-inheritor-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.yantai-inheritor-avatar {
  position: relative;
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--primary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid rgba(196, 30, 58, 0.25);
}

.yantai-inheritor-avatar__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.yantai-inheritor-avatar.has-photo .yantai-inheritor-avatar__img {
  display: block;
}

.yantai-inheritor-avatar__icon {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: var(--primary);
}

.yantai-inheritor-avatar.is-awaiting-photo .yantai-inheritor-avatar__icon,
.yantai-inheritor-avatar.no-photo .yantai-inheritor-avatar__icon {
  display: flex;
}

.yantai-inheritor-avatar__icon svg {
  width: 28px;
  height: 28px;
  display: block;
}

.yantai-inheritor-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 4px;
}

.yantai-inheritor-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
}

.yantai-inheritor-bio {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* —— 模块③ 人生时间轴 —— */
.huayang-timeline-section {
  padding-top: 48px;
  background: var(--surface);
}

.timeline-layout {
  max-width: 720px;
  margin: 8px auto 0;
}

.timeline-content {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.timeline-track-title {
  font-family: var(--font-kai);
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 12px;
}

.timeline-rail {
  position: relative;
  padding: 20px 8px 8px;
}

.timeline-line {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 28px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-light), var(--accent-light), var(--primary-light));
  border-radius: 2px;
}

.timeline-nodes {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.timeline-nodes li {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.timeline-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.25s ease;
  max-width: 100%;
}

.timeline-node:hover,
.timeline-node:focus-visible {
  transform: translateY(-3px);
  outline: none;
}

.timeline-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface);
  border: 3px solid var(--accent);
  box-shadow: 0 2px 8px rgba(30, 77, 107, 0.15);
  transition: background 0.28s, border-color 0.28s, transform 0.28s, box-shadow 0.28s;
}

.timeline-node:hover .timeline-dot,
.timeline-node:focus-visible .timeline-dot {
  border-color: var(--primary);
  transform: scale(1.15);
}

.timeline-node.is-active .timeline-dot {
  background: var(--primary);
  border-color: var(--primary-dark);
  transform: scale(1.25);
  box-shadow: 0 0 0 6px rgba(196, 30, 58, 0.2);
}

.timeline-node-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
}

.timeline-node.is-active .timeline-node-label {
  color: var(--primary);
}

#timeline-guide.is-dismissed {
  opacity: 0.75;
}

.timeline-card-empty {
  padding: 28px 20px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.timeline-card-empty[hidden] {
  display: none;
}

.timeline-detail-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px 24px;
  align-items: start;
  padding: 24px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.timeline-detail-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.timeline-bun-photo-wrap {
  position: relative;
  flex-shrink: 0;
  width: 88px;
  height: 88px;
  background: var(--accent-light);
  border-radius: var(--radius);
  border: 1px solid rgba(196, 30, 58, 0.2);
  overflow: hidden;
}

.timeline-bun-photo-wrap.is-animating {
  animation: timeline-bun-pop 0.65s cubic-bezier(0.34, 1.4, 0.64, 1);
}

.timeline-bun-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

.timeline-bun-photo-wrap.has-photo .timeline-bun-photo {
  display: block;
}

.timeline-bun-photo__placeholder {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.timeline-bun-photo-wrap.is-awaiting-photo .timeline-bun-photo__placeholder,
.timeline-bun-photo-wrap.no-photo .timeline-bun-photo__placeholder {
  display: flex;
}

.timeline-bun-photo__placeholder svg {
  width: 40px;
  height: 40px;
}

@keyframes timeline-bun-pop {
  0% {
    transform: scale(0.5) rotate(-8deg);
    opacity: 0.4;
  }
  45% {
    transform: scale(1.15) rotate(4deg);
  }
  100% {
    transform: scale(1) rotate(0);
    opacity: 1;
  }
}

.timeline-detail-body .card-tag {
  margin-bottom: 8px;
}

.timeline-detail-title {
  font-family: var(--font-kai);
  font-size: 1.25rem;
  color: var(--ink);
  margin-bottom: 6px;
}

.timeline-detail-bun {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}

.timeline-detail-desc {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.huayang-coming-inner {
  text-align: center;
}

.huayang-coming .section-desc {
  max-width: 480px;
  margin: 0 auto 24px;
}

/* —— 模块⑤ 制作工具 —— */
.huayang-tools-section {
  padding-top: 48px;
}

.tools-guide.is-dismissed {
  opacity: 0.75;
}

.tools-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: 28px;
  align-items: stretch;
  max-width: 1120px;
  margin: 0 auto;
}

.tools-arena-col {
  min-width: 0;
}

.tools-arena {
  position: relative;
  height: min(52vh, 480px);
  min-height: 360px;
  overflow: hidden;
  background: linear-gradient(165deg, var(--accent-light) 0%, #e0eaf2 45%, #dce8f0 100%);
  border: 1px solid rgba(196, 30, 58, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.tools-arena-hint {
  margin-top: 12px;
  text-align: center;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.tools-item {
  position: absolute;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 88px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  outline: none;
  transform-origin: center center;
  animation: tool-float var(--float-dur, 6s) ease-in-out infinite;
  animation-delay: var(--float-delay, 0s);
  transition: filter 0.28s ease, z-index 0s;
}

.tools-item:hover,
.tools-item:focus-visible {
  z-index: 10;
  animation-play-state: paused;
}

.tools-item.is-active {
  z-index: 12;
  animation: tool-float-active 4s ease-in-out infinite;
}

@keyframes tool-float {
  0%, 100% {
    translate: 0 0;
    rotate: -4deg;
  }
  33% {
    translate: 10px -14px;
    rotate: 3deg;
  }
  66% {
    translate: -8px 10px;
    rotate: -2deg;
  }
}

@keyframes tool-float-active {
  0%, 100% {
    translate: 0 0;
    rotate: -8deg;
  }
  50% {
    translate: 4px -8px;
    rotate: 8deg;
  }
}

.tools-item:hover .tools-item-visual,
.tools-item:focus-visible .tools-item-visual {
  transform: scale(1.12) rotate(4deg);
  box-shadow: 0 12px 28px rgba(196, 30, 58, 0.18), 0 4px 12px rgba(196, 30, 58, 0.25);
}

.tools-item.is-active .tools-item-visual {
  transform: scale(1.18) rotate(-6deg);
  box-shadow: 0 14px 32px rgba(196, 30, 58, 0.35);
  border-color: var(--primary);
}

.tools-item-visual {
  position: relative;
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 2px solid rgba(196, 30, 58, 0.45);
  border-radius: 18px;
  box-shadow: 0 6px 16px rgba(30, 77, 107, 0.08);
  overflow: hidden;
  transition: transform 0.35s cubic-bezier(0.34, 1.2, 0.64, 1), box-shadow 0.35s ease, border-color 0.3s ease;
}

.tools-item-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  display: block;
}

.tools-item-img[hidden] {
  display: none;
}

.tools-item-icon {
  font-size: 2rem;
  line-height: 1;
  user-select: none;
}

.tools-item-icon[hidden] {
  display: none;
}

.tools-item-visual--awaiting {
  background: linear-gradient(145deg, var(--accent-light), #dce8f0);
}

.tools-item-img-ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  font-family: ui-monospace, monospace;
  font-size: 0.5rem;
  line-height: 1.2;
  text-align: center;
  color: rgba(30, 77, 107, 0.55);
  word-break: break-all;
  pointer-events: none;
}

.tools-item-img-ph[hidden] {
  display: none;
}

.tools-arena-hint code {
  font-size: 0.72rem;
  padding: 1px 6px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 4px;
}

.tools-item-name {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-align: center;
  line-height: 1.2;
  max-width: 88px;
}

.tools-panel-wrap {
  position: sticky;
  top: calc(var(--nav-h) + 72px);
  align-self: start;
  min-height: 420px;
}

.tools-panel-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 420px;
  padding: 32px 24px;
  text-align: center;
  background: linear-gradient(165deg, var(--accent-light) 0%, var(--surface) 100%);
  border: 2px dashed rgba(196, 30, 58, 0.4);
  border-radius: var(--radius-lg);
  color: var(--ink-soft);
}

.tools-panel-empty[hidden] {
  display: none;
}

.tools-panel-empty__icon {
  font-size: 2.5rem;
}

.tools-panel-empty p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.tools-panel-empty__hint {
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--ink-soft) !important;
}

.tools-detail-panel {
  background: var(--surface);
  border: 1px solid rgba(196, 30, 58, 0.28);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  opacity: 0;
  transform: translateX(14px);
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.tools-detail-panel.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.tools-viewer-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 220px;
  background: linear-gradient(180deg, var(--accent-light) 0%, #dce8f0 100%);
  border-bottom: 1px solid var(--border);
}

.tools-viewer-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

.tools-viewer-canvas.is-ready {
  cursor: grab;
}

.tools-viewer-canvas.is-ready:active {
  cursor: grabbing;
}

.tools-viewer-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 24px;
  text-align: center;
  pointer-events: none;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.tools-viewer-placeholder[hidden] {
  display: none;
}

.tools-viewer-placeholder__badge {
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-dark);
  background: rgba(232, 241, 246, 0.95);
  border-radius: 999px;
  border: 1px solid rgba(196, 30, 58, 0.35);
}

.tools-viewer-placeholder code {
  font-size: 0.7rem;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 6px;
  border: 1px dashed rgba(196, 30, 58, 0.35);
  word-break: break-all;
}

.tools-viewer-placeholder__hint {
  font-size: 0.78rem;
  margin: 0;
  opacity: 0.85;
}

.tools-viewer-placeholder__error {
  margin: 0;
  max-width: 280px;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--primary-dark);
  font-weight: 600;
}

.tools-viewer-placeholder__error[hidden] {
  display: none;
}

.tools-viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 241, 246, 0.9);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-dark);
}

.tools-viewer-loading[hidden] {
  display: none;
}

.tools-detail-body {
  padding: 20px 22px 24px;
}

.tools-detail-title {
  font-family: var(--font-kai);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--ink);
  margin: 8px 0 10px;
}

.tools-detail-usage {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0 0 12px;
  line-height: 1.5;
}

.tools-detail-desc {
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0;
}

/* —— 模块④ 制作步骤流程 —— */
.huayang-steps-section {
  padding-top: 48px;
}

.steps-guide.is-dismissed {
  opacity: 0.75;
}

.steps-flow-panel {
  margin: 8px 0 32px;
  padding: 28px 20px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.steps-flow-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 30, 58, 0.5) transparent;
  padding-bottom: 8px;
}

.steps-flow-inner {
  position: relative;
  min-width: min(100%, 1080px);
  padding: 48px 16px 12px;
  margin: 0 auto;
}

.steps-line-wrap {
  position: absolute;
  left: 40px;
  right: 40px;
  top: 62px;
  height: 6px;
  pointer-events: none;
}

.steps-line-bg {
  position: absolute;
  inset: 0;
  background: #e0e0e0;
  border-radius: 999px;
}

.steps-line-progress {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 999px;
  transition: width 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  box-shadow: 0 0 12px rgba(196, 30, 58, 0.35);
}

.steps-line-flow {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  overflow: hidden;
  pointer-events: none;
}

.steps-line-flow::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.55) 45%,
    transparent 90%
  );
  animation: steps-shimmer 1.8s ease-in-out infinite;
}

@keyframes steps-shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.steps-nodes {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.steps-nodes li {
  flex: 1;
  min-width: 72px;
  max-width: 96px;
  display: flex;
  justify-content: center;
}

.steps-node {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  outline: none;
  font-family: var(--font);
}

.steps-node-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #e8e8e8;
  border: 3px solid #d0d0d0;
  transition:
    transform 0.25s ease,
    background 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.steps-node-index {
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.68rem;
  font-weight: 700;
  color: #bbb;
  white-space: nowrap;
}

.steps-node-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: #aaa;
  text-align: center;
  line-height: 1.3;
  transition: color 0.25s ease;
}

.steps-node-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--surface);
  background: var(--primary);
  border-radius: 8px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.35);
}

.steps-node-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border: 5px solid transparent;
  border-top-color: var(--primary);
}

.steps-node:hover .steps-node-tooltip,
.steps-node:focus-visible .steps-node-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.steps-node:hover .steps-node-dot,
.steps-node:focus-visible .steps-node-dot {
  transform: scale(1.15);
  background: var(--primary-light);
  border-color: rgba(196, 30, 58, 0.45);
}

.steps-node:hover .steps-node-label,
.steps-node:focus-visible .steps-node-label {
  color: var(--primary);
}

.steps-node.is-reached .steps-node-dot {
  background: #f5d4da;
  border-color: var(--primary);
}

.steps-node.is-reached .steps-node-index {
  color: var(--primary);
}

.steps-node.is-reached .steps-node-label {
  color: var(--primary-dark);
}

.steps-node.is-active .steps-node-dot {
  transform: scale(1.2);
  background: var(--primary);
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.25);
}

.steps-node.is-active .steps-node-label {
  color: var(--primary-dark);
  font-weight: 700;
}

.steps-detail-wrap {
  max-width: 720px;
  margin: 0 auto;
}

.steps-panel-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 40px 28px;
  text-align: center;
  background: linear-gradient(165deg, var(--accent-light) 0%, var(--surface) 100%);
  border: 2px dashed rgba(196, 30, 58, 0.4);
  border-radius: var(--radius-lg);
  color: var(--ink-soft);
}

.steps-panel-empty[hidden] {
  display: none;
}

.steps-panel-empty__icon {
  font-size: 2rem;
}

.steps-panel-empty p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.steps-panel-empty__hint {
  font-size: 0.85rem !important;
  font-weight: 500 !important;
  color: var(--ink-soft) !important;
}

.steps-detail-card {
  background: var(--surface);
  border: 1px solid rgba(196, 30, 58, 0.25);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px 26px 22px;
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.steps-detail-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.steps-detail-card__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
}

.steps-detail-order {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: var(--surface);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 12px;
}

.steps-detail-title {
  font-family: var(--font-kai);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--ink);
  margin: 0 0 4px;
}

.steps-detail-tagline {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.steps-detail-media {
  margin: 0 0 18px;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--accent-light);
  border: 1px solid var(--border);
}

.steps-detail-media[hidden] {
  display: none;
}

.steps-detail-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.steps-detail-img[hidden] {
  display: none;
}

.steps-detail-img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 100%;
  min-height: 140px;
  padding: 20px;
  background: linear-gradient(145deg, var(--accent-light), #dce8f0);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.steps-detail-img-placeholder[hidden] {
  display: none;
}

.steps-detail-img-placeholder code {
  font-size: 0.72rem;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 6px;
  border: 1px dashed rgba(196, 30, 58, 0.3);
}

.steps-detail-desc {
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 12px;
}

.steps-detail-tip {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0;
  padding: 12px 14px;
  background: var(--accent-light);
  border-radius: var(--radius);
  border-left: 3px solid var(--primary);
}

.steps-detail-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.steps-detail-nav .btn {
  padding: 8px 18px;
  font-size: 0.85rem;
}

.steps-detail-nav .btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

@media (max-width: 900px) {
  .timeline-detail-card {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .timeline-bun-photo-wrap {
    margin: 0 auto;
  }

  .yantai-layout {
    grid-template-columns: 1fr;
  }

  .yantai-card-col {
    position: static;
    min-height: 0;
  }

  .yantai-inheritor-card {
    transform: translateY(12px);
  }

  .yantai-inheritor-card.is-visible {
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .tools-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .tools-panel-wrap {
    position: static;
    min-height: 0;
  }

  .tools-panel-empty {
    min-height: 200px;
  }

  .map-layout--china {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .region-card-wrap--side {
    position: static;
    min-height: 0;
  }

  .region-panel-empty {
    min-height: 200px;
  }
}

@media (max-width: 768px) {
  .map-panel {
    padding: 16px;
  }

  .region-detail-grid {
    grid-template-columns: 1fr;
  }

  .region-label {
    font-size: 13px;
  }

  .district-label {
    font-size: 10px;
  }

  .timeline-nodes {
    flex-wrap: wrap;
    justify-content: center;
    row-gap: 20px;
  }

  .timeline-nodes li {
    flex: 0 1 auto;
    min-width: 56px;
  }

  .timeline-line {
    display: none;
  }

  .timeline-node-label {
    font-size: 0.72rem;
  }

  .steps-flow-inner {
    min-width: 880px;
  }

  .steps-node-label {
    font-size: 0.65rem;
  }

  .tools-arena {
    min-height: 320px;
    height: 380px;
  }

  .tools-item {
    width: 76px;
  }

  .tools-item-visual {
    width: 64px;
    height: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .region-shape,
  .region-label,
  .region-detail-card,
  .district-shape,
  .district-label,
  .yantai-inheritor-card,
  .timeline-detail-card,
  .timeline-bun-photo-wrap.is-animating,
  .steps-line-progress,
  .steps-line-flow::after,
  .steps-detail-card,
  .tools-item,
  .tools-detail-panel {
    transition: none;
    animation: none;
  }
}