/* ============================================================
   landing-home.css - 首页专属细节打磨（仅在 index.html 引入）
   原则：保留粗野主义骨架（黑 + 荧光绿 + 硬阴影），只做细节精致化。
   ============================================================ */

/* 1. 功能卡 hover 微动效：轻微上浮 + 阴影加深 */
.lb-feature-row {
  transition: transform .25s ease, box-shadow .25s ease;
}
.lb-feature-row:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(10,10,10,.10);
}

/* 2. 案例卡片：底部加渐变遮罩，提升标签可读性 */
.lb-showcase-item {
  position: relative;
}
.lb-showcase-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(10,10,10,.55) 100%);
  pointer-events: none;
  border-radius: inherit;
}
.lb-showcase-item span {
  color: #fff;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0,0,0,.4);
}

/* 3. 区块标题次要词层次优化：更克制的灰 + 字重区分 */
.lb-sec h2 span {
  color: var(--lb-muted);
  opacity: .85;
}

/* 4. hero 副标题与按钮区的呼吸留白 */
.lb-hero-sub { max-width: 560px; }
.lb-hero-cta { gap: 14px; }

/* 5. 跑马灯项间间距节奏 */
.lb-marquee-track { letter-spacing: 1.5px; }

/* ============ Hero 区重构：左文右图 ============ */

/* hero 内边距收窄（原 120px 上下太松，左右 44px 让内层容器居中） */
.lb-hero {
  padding: 80px 44px 100px;
}

/* 内层容器：左右两栏，标题区 flex 1.25 / 样机区 flex 1 */
.lb-hero-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: 48px;
  max-width: 1160px;
  margin: 0 auto;
}
.lb-hero-left { flex: 1.25; min-width: 0; }
.lb-hero-right { flex: 1; position: relative; min-width: 0; }

/* 光标装饰块：橙色改品牌黑 */
.lb-hero h1 .lb-caret {
  background: var(--lb-ink);
  height: 0.11em;
  margin-left: 4px;
}

/* 光晕：浑浊黄改品牌荧光绿光晕，透亮干净（保留右上角） */
.lb-hero::before {
  background: radial-gradient(circle, rgba(224,251,113,.45), rgba(224,251,113,0) 62%);
}

/* 副标题：放大提亮，与巨标题比例协调 */
.lb-hero-sub {
  font-size: 16px;
  color: var(--lb-ink);
  opacity: .78;
  max-width: 540px;
  line-height: 1.75;
  margin-top: 4px;
}

/* 按钮区：紧跟副标题下方，左对齐 */
.lb-hero-cta {
  margin-top: 24px;
  justify-content: flex-start;
}

/* 产品样机：斜置 + 黑描边 + 硬阴影，海报感 */
.lb-hero-mockup {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  background: #fff;
  border: 2px solid var(--lb-ink);
  border-radius: 14px;
  box-shadow: 10px 10px 0 var(--lb-ink);
  transform: rotate(2.5deg);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.lb-hero-mockup:hover {
  transform: rotate(0deg);
  box-shadow: 14px 14px 0 var(--lb-ink);
}
.lb-hero-mockup img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}
.lb-hero-mockup-tag {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: var(--lb-accent);
  color: var(--lb-ink);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border: 2px solid var(--lb-ink);
  border-radius: 999px;
  box-shadow: 2px 2px 0 var(--lb-ink);
}

/* 荧光绿几何装饰块（右上，粗野主义点缀） */
.lb-hero-shape {
  position: absolute;
  border: 2px solid var(--lb-ink);
  pointer-events: none;
}
.lb-hero-shape-1 {
  top: -24px;
  right: 8px;
  width: 72px;
  height: 72px;
  background: var(--lb-accent);
  border-radius: 50%;
  box-shadow: 4px 4px 0 var(--lb-ink);
}
.lb-hero-shape-2 {
  bottom: -18px;
  left: -20px;
  width: 40px;
  height: 40px;
  background: var(--lb-yellow);
  border-radius: 8px;
  transform: rotate(12deg);
  box-shadow: 3px 3px 0 var(--lb-ink);
}

/* 顶部 banner：字重加强 */
.lb-banner {
  font-weight: 600;
  letter-spacing: .3px;
}

/* 响应式：窄屏堆叠 */
@media (max-width: 900px) {
  .lb-hero-inner { flex-direction: column; gap: 40px; }
  .lb-hero-right { width: 100%; }
  .lb-hero-mockup { max-width: 320px; }
}

/* 6. 底部 CTA 主按钮 hover 上浮 */
.lb-cta .lb-btn-p {
  transition: transform .12s, box-shadow .12s, background .15s;
}
.lb-cta .lb-btn-p:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

/* ============ 详情页案例墙：5 列瀑布 + 一键复刻 ============ */
.lb-detailwall-wrap {
  margin-top: 56px;
}
.lb-detailwall-head {
  text-align: center;
  margin-bottom: 24px;
}
.lb-detailwall-head h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--lb-ink);
}
.lb-detailwall-head h3 span {
  color: var(--lb-ink);
  background: var(--lb-accent);
  padding: 2px 10px;
  border: 2px solid var(--lb-ink);
  border-radius: 999px;
  box-shadow: 3px 3px 0 var(--lb-ink);
  display: inline-block;
  margin-left: 8px;
  font-size: 16px;
  vertical-align: 3px;
}
.lb-detailwall-head p {
  margin-top: 10px;
  color: var(--lb-muted);
  font-size: 14px;
}

/* 瀑布流：显式 5 列容器（multi-col 平衡算法在图片高度差异大时会少排一列，弃用） */
.lb-detailwall {
  display: flex;
  gap: 14px;
  max-width: 1160px;
  margin: 0 auto;
}
.lb-dw-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.lb-dw-item {
  position: relative;
  display: block;
  border: 2px solid var(--lb-ink);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 5px 5px 0 var(--lb-ink);
  transition: transform .2s ease, box-shadow .2s ease;
}
.lb-dw-item:hover {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--lb-ink);
}
.lb-dw-item img {
  width: 100%;
  height: auto;
  display: block;
}
/* hover 遮罩 + 一键复刻按钮 */
.lb-dw-item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(10,10,10,.35);
  opacity: 0;
  transition: opacity .2s ease;
  pointer-events: none;
}
.lb-dw-btn {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translate(-50%, 8px);
  background: var(--lb-accent);
  color: var(--lb-ink);
  font-size: 13px;
  font-weight: 800;
  white-space: nowrap;
  padding: 8px 18px;
  border: 2px solid var(--lb-ink);
  border-radius: 999px;
  box-shadow: 3px 3px 0 var(--lb-ink);
  opacity: 0;
  transition: opacity .2s ease, transform .2s ease;
  z-index: 1;
  pointer-events: none;
}
.lb-dw-item:hover::after { opacity: 1; }
.lb-dw-item:hover .lb-dw-btn {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* 响应式：5 → 3 → 2 列（列容器整体换行） */
@media (max-width: 1100px) {
  .lb-detailwall { flex-wrap: wrap; justify-content: center; }
  .lb-dw-col { flex: 0 0 calc(33.33% - 10px); }
}
@media (max-width: 700px) {
  .lb-dw-col { flex: 0 0 calc(50% - 7px); }
  .lb-dw-item { box-shadow: 4px 4px 0 var(--lb-ink); }
}