:root {
  --bg: #ececec;
  --surface: #fff;
  --nested: #f7f7f7;
  --inset: #f3f3f3;
  --text-black: #1a1a1a;
  --text-strong: #333;
  --text-default: #444;
  --text-muted: #666;
  --text-light: #999;
  --border: #e0e0e0;
  --subtle: #eee;
  --action: #333;
  --elev: 0 1px 2px rgba(0, 0, 0, 0.04);
  --radius: 8px;
  --font: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-default);
  font-size: 13px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input { font: inherit; }

.page {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  padding-bottom: calc(24px + var(--safe-b));
}

/* 大屏加宽：从选品中心点入时不再突然缩成手机条；手机仍保持 480 */
@media (min-width: 768px) {
  body { background: #e4e4e4; }
  .page {
    max-width: 820px;
    margin: 16px auto 32px;
    background: var(--bg);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    min-height: calc(100vh - 48px);
  }
  .topbar { border-radius: 12px 12px 0 0; }
  .list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 10px 16px 0;
  }
  .intros {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 12px 16px 0;
  }
  .meta-line,
  .page-lead,
  .contact-card { margin-left: 16px; margin-right: 16px; }
}
@media (min-width: 1100px) {
  .page { max-width: 960px; }
}

/* sticky bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(236, 236, 236, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--subtle);
  padding: 8px 12px 10px;
}
.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 8px;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.brand {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-strong);
  white-space: nowrap;
}
.home-btn {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-strong);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.home-btn:active { background: var(--inset); }
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.lang-btn,
.share-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-strong);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  min-width: 56px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}
.lang-btn:active,
.share-btn:active { background: var(--inset); }
.share-btn {
  min-width: 0;
  background: #25d366;
  border-color: #1ebe57;
  color: #fff;
}
.share-btn:active { background: #1ebe57; }

.filters-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.filter-field {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.filter-field label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.filter-select {
  width: 100%;
  height: 36px;
  padding: 0 28px 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M1 1l5 5 5-5'/%3E%3C/svg%3E")
    no-repeat right 10px center;
  background-size: 10px;
  color: var(--text-strong);
  font-size: 13px;
  font-weight: 500;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
}
.filter-select:focus { border-color: #bbb; }

.meta-line {
  margin: 8px 12px 0;
  font-size: 12px;
  color: var(--text-light);
}

/* series intros */
.intros {
  padding: 10px 12px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.intro {
  background: var(--surface);
  border: 1px solid var(--subtle);
  border-radius: var(--radius);
  box-shadow: var(--elev);
  padding: 12px 12px 11px;
}
.intro.featured { padding: 14px 14px 13px; }
.intro-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--nested);
  border-radius: 999px;
  padding: 3px 8px;
  margin-bottom: 6px;
}
.intro h1,
.intro h2 {
  margin: 0 0 4px;
  font-weight: 600;
  color: var(--text-black);
  letter-spacing: -0.02em;
}
.intro h1 { font-size: 18px; }
.intro h2 { font-size: 15px; }
.intro .sub {
  margin: 0;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}
.page-lead {
  margin: 0 12px;
  padding: 2px 0 0;
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.45;
}

/* cards */
.list {
  padding: 8px 12px 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.model {
  background: var(--surface);
  border: 1px solid var(--subtle);
  border-radius: var(--radius);
  box-shadow: var(--elev);
  overflow: hidden;
}
.model-media { background: #fff; }
.model-media img,
.model-media .ok-live-canvas {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  display: block;
}
.model-media.is-live { position: relative; }
.model-media.is-live .ok-live-fallback {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}
.model-media.is-live .ok-live-canvas,
.model-media.is-live .ok-custom-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.model-media.is-live:not(.is-painted) .ok-live-canvas,
.model-media.is-live:not(.is-custom) .ok-live-canvas,
.model-media.is-live.is-default .ok-live-canvas,
.model-media.is-live:not(.is-custom) .ok-custom-fallback,
.model-media.is-live.is-painted .ok-custom-fallback { visibility: hidden; }
.model-media.is-live.is-default .ok-live-fallback { visibility: visible; display: block; }
.model-body { padding: 10px 10px 11px; }
.model-hd {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 2px;
}
.model-hd h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-black);
}
.model-hd .size {
  font-size: 11px;
  color: var(--text-light);
  white-space: nowrap;
}
.door-line {
  margin: 0 0 8px;
  font-size: 11px;
  color: var(--text-muted);
}

/* compact swatches: label + code inside chip */
.swatches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  margin-bottom: 8px;
}
.model-media {
  position: relative;
}
.model-media img {
  transition: opacity 0.25s ease;
}
.preview-badge {
  position: absolute;
  right: 8px;
  top: 8px;
  z-index: 2;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 650;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  max-width: calc(100% - 16px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preview-badge.is-ref {
  background: rgba(7, 193, 96, 0.85);
}
.preview-toggle {
  position: absolute;
  right: 8px;
  top: 8px;
  z-index: 3;
  display: flex;
  padding: 2px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.preview-toggle button {
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  font-size: 10px;
  font-weight: 650;
  line-height: 1;
  padding: 5px 9px;
  border-radius: 999px;
  cursor: pointer;
}
.preview-toggle button.is-on {
  background: #fff;
  color: #111;
}
.swatch-chip {
  position: relative;
  height: 44px;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 4px 6px;
}
.swatch-chip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 25%, rgba(0,0,0,0.55));
  pointer-events: none;
}
.swatch-chip.light::after {
  background: linear-gradient(transparent 20%, rgba(0,0,0,0.42));
}
.swatch-chip.wood {
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.08) 0 2px, transparent 2px),
    linear-gradient(0deg, rgba(0,0,0,0.06), transparent);
  background-size: 6px 100%, 100% 100%;
}
.swatch-chip.stone {
  background-image:
    radial-gradient(circle at 30% 40%, rgba(255,255,255,0.35) 0 1px, transparent 1.5px),
    radial-gradient(circle at 70% 60%, rgba(0,0,0,0.18) 0 1px, transparent 1.5px);
  background-size: 8px 8px, 10px 10px;
}
.swatch-chip .role,
.swatch-chip .code {
  position: relative;
  z-index: 1;
  color: #fff;
  line-height: 1.15;
}
.swatch-chip .role {
  font-size: 9px;
  opacity: 0.9;
}
.swatch-chip .code {
  font-size: 11px;
  font-weight: 600;
}

.section-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 4px;
}

.hl-box {
  margin: 0 0 8px;
  padding: 8px 9px 7px;
  background: var(--nested);
  border: 1px solid var(--subtle);
  border-radius: 6px;
}
.hl-box .section-label { margin-bottom: 5px; }
.hl-item + .hl-item {
  margin-top: 7px;
  padding-top: 7px;
  border-top: 1px solid rgba(0,0,0,0.06);
}
.hl-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 2px;
}
.hl-body {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}
.feat-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 8px;
  margin: 0 0 7px;
  padding: 4px 0;
  background: var(--inset);
  border-radius: 6px;
}
.feat-list li {
  padding: 3px 8px;
  font-size: 12px;
  color: var(--text-default);
  line-height: 1.3;
}
.opts-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 4px;
}
.opts-hd .section-label {
  margin: 0;
}
.opt-add {
  width: 22px;
  height: 22px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: #fff;
  color: #333;
  font-size: 16px;
  font-weight: 500;
  line-height: 20px;
  padding: 0;
  cursor: pointer;
}
.opts {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  min-height: 22px;
}
.opt {
  position: relative;
  font-size: 10px;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 18px 2px 7px;
  line-height: 1.3;
}
.opt-x {
  position: absolute;
  right: 1px;
  top: 50%;
  transform: translateY(-50%);
  border: 0;
  background: transparent;
  color: #999;
  font-size: 12px;
  line-height: 1;
  padding: 2px 5px;
  cursor: pointer;
}

.empty {
  margin: 20px 12px;
  text-align: center;
  color: var(--text-light);
  font-size: 13px;
}

/* lead form */
.contact-card {
  margin: 12px 12px 0;
  background: var(--surface);
  border: 1px solid var(--subtle);
  border-radius: var(--radius);
  box-shadow: var(--elev);
  padding: 14px 12px 14px;
}
.contact-card h3 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-black);
}
.contact-card .note {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}
.lead-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}
.lead-input {
  width: 100%;
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--nested);
  color: var(--text-strong);
  outline: none;
}
.lead-input:focus {
  border-color: #bbb;
  background: #fff;
}
.lead-input::placeholder { color: var(--text-light); }
.interest-line {
  margin: 0 0 10px;
  font-size: 11px;
  color: var(--text-light);
}
.contact-btn {
  width: 100%;
  border: 0;
  border-radius: 8px;
  background: var(--action);
  color: #fff;
  padding: 11px 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.contact-btn:disabled { opacity: 0.55; cursor: default; }
.contact-btn:not(:disabled):active { background: #1a1a1a; }
.lead-msg {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--text-muted);
  min-height: 1.2em;
}
.lead-msg.ok { color: var(--text-strong); font-weight: 500; }
.lead-msg.err { color: #8a3a3a; }

/* 工厂介绍：浅色页面 + 全宽图/视频 · 箭头叠图 · 底部小点 */
.factory-intro {
  margin: 16px 12px 0;
  padding: 14px 0 16px;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--elev);
  overflow: hidden;
}
.factory-title {
  margin: 0 12px 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-black);
  letter-spacing: normal;
  text-transform: none;
}
.factory-lead {
  margin: 0 12px 14px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--text-muted);
  max-width: none;
}
.factory-layer {
  margin: 0;
  padding: 0;
}
.factory-layer + .factory-layer {
  margin-top: 14px;
  padding-top: 0;
  border-top: none;
}
.layer-hd {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-light);
  margin: 0 12px 8px;
}
.factory-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: #000;
  border-top: 1px solid var(--subtle);
  border-bottom: 1px solid var(--subtle);
  outline: none;
}
.factory-slides {
  position: relative;
  width: 100%;
  line-height: 0;
}
.factory-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.65s ease, visibility 0.65s ease;
  pointer-events: none;
  background: #000;
  border-radius: 0;
  box-shadow: none;
}
.factory-slide.is-active {
  position: relative;
  inset: auto;
  opacity: 1;
  visibility: visible;
  z-index: 1;
  pointer-events: auto;
}
.factory-slide img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}
.factory-carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: auto;
  min-width: 1.75rem;
  height: auto;
  border: none;
  border-radius: 0;
  background: none;
  color: rgba(244, 245, 243, 0.88);
  font-size: 1.55rem;
  line-height: 1;
  cursor: pointer;
  display: block;
  padding: 0.35rem 0.45rem;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.65);
}
.factory-carousel-prev {
  left: 0.55rem;
}
.factory-carousel-next {
  right: 0.55rem;
}
.factory-carousel-btn:hover {
  color: #fff;
}
.factory-carousel-meta {
  display: none;
}
.factory-carousel-count {
  display: none;
}
.factory-carousel-dots {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 0.65rem;
  transform: translateX(-50%);
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  gap: 0.28rem;
  max-width: calc(100% - 4rem);
  padding: 0.15rem 0.35rem;
}
.factory-dot {
  width: 6px;
  height: 6px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(244, 245, 243, 0.35);
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.2s ease, width 0.2s ease, border-radius 0.2s ease;
}
.factory-dot.is-active {
  width: 14px;
  border-radius: 999px;
  background: rgba(244, 245, 243, 0.92);
}
.factory-youtube-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 0;
  overflow: hidden;
  background: #000;
  border-top: 1px solid var(--subtle);
  border-bottom: 1px solid var(--subtle);
  box-shadow: none;
}
.factory-youtube {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.factory-video-wrap {
  border-radius: 0;
  overflow: hidden;
  background: #000;
  border-top: 1px solid var(--subtle);
  border-bottom: 1px solid var(--subtle);
  box-shadow: none;
}
.factory-video {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(62vh, 560px);
  background: #000;
}

/* Shell / Cabinets / Top — selectable color chips */
.swatch-chip.is-pickable {
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  font: inherit;
  text-align: left;
  cursor: pointer;
  width: 100%;
  box-sizing: border-box;
}
.swatch-chip.is-pickable:active {
  transform: scale(0.98);
}
.swatch-chip.is-pickable:focus-visible {
  outline: 2px solid #07c160;
  outline-offset: 1px;
}

.opt-pick-mask {
  position: fixed;
  inset: 0;
  z-index: 1400;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  box-sizing: border-box;
}
.opt-pick-mask[hidden] {
  display: none !important;
}
.opt-pick-sheet {
  width: min(440px, 100%);
  height: min(360px, 70vh);
  max-height: min(360px, 70vh);
  background: #f5f5f5;
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}
.opt-pick-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.opt-pick-item {
  width: 100%;
  text-align: left;
  border: 2px solid #e5e5e5;
  border-radius: 10px;
  background: #fff;
  padding: 10px 12px;
  font-size: 0.86rem;
  color: #222;
  cursor: pointer;
}

.color-pick-mask {
  position: fixed;
  inset: 0;
  z-index: 1400;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 12px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  box-sizing: border-box;
}
.color-pick-mask[hidden] {
  display: none !important;
}
.color-pick-sheet {
  width: min(440px, 100%);
  height: min(360px, 70vh);
  max-height: min(360px, 70vh);
  background: #f5f5f5;
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}
.color-pick-h {
  display: grid;
  grid-template-columns: 52px 1fr 52px;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
  flex: 0 0 auto;
}
.color-pick-h b {
  text-align: center;
  font-size: 0.86rem;
}
.color-pick-h button {
  border: 0;
  background: transparent;
  color: #576b95;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  padding: 6px 0;
}
.color-pick-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  padding: 10px;
  -webkit-overflow-scrolling: touch;
}
.color-pick-empty {
  padding: 24px 12px;
  text-align: center;
  color: #888;
  font-size: 0.85rem;
}
.color-series-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.color-series-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
  width: 100%;
  text-align: left;
  border: 2px solid #e5e5e5;
  border-radius: 12px;
  background: #fff;
  padding: 12px;
  cursor: pointer;
  color: #222;
  box-shadow: none;
}
.color-series-card.is-on {
  border-color: #07c160;
  box-shadow: none;
}
.color-series-card .cs-name {
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.25;
}
.color-series-card .cs-sub {
  margin-top: 3px;
  font-size: 0.68rem;
  color: #888;
  line-height: 1.35;
}
.color-series-card .cs-previews {
  display: flex;
  gap: 4px;
}
.color-series-card .cs-previews i {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: #ddd center / cover no-repeat;
  display: block;
}
.color-swatch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.color-swatch-grid.is-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
}
.color-swatch-card {
  border: 2px solid #e5e5e5;
  border-radius: 10px;
  background: #fff;
  padding: 6px;
  cursor: pointer;
  text-align: left;
  color: #222;
  box-shadow: none;
}
.color-swatch-card.is-on {
  border-color: #07c160;
  box-shadow: none;
}
.color-swatch-card .cw-img {
  width: 100%;
  aspect-ratio: 2.4;
  border-radius: 6px;
  background: #eee center / cover no-repeat;
  border: 1px solid rgba(0, 0, 0, 0.06);
}
.color-swatch-card .cw-code {
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 700;
}
.color-swatch-card .cw-name {
  margin-top: 1px;
  font-size: 0.62rem;
  color: #888;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 768px) {
  .factory-intro {
    margin-left: 16px;
    margin-right: 16px;
  }
  .factory-title,
  .factory-lead,
  .layer-hd {
    margin-left: 12px;
    margin-right: 12px;
  }
}