/* ===============================
   Product Details Page
   assets/css/product-details.css
   =============================== */

/* 页面整体 */
.product-detail {
  padding: 96px 0;
  background: #f5f5f7;
}

/* ===============================
   顶部信息区
   =============================== */
.product-header {
  max-width: 1200px;
  margin: 0 auto 64px;
  padding: 0 24px;
}

.product-eyebrow {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9a9a9a;
  margin-bottom: 12px;
}

.product-title {
  font-size: 42px;
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 8px;
}

.product-title-cn {
  font-size: 18px;
  color: #7d7f89;
  margin-bottom: 24px;
}

.product-summary {
  font-size: 17px;
  line-height: 1.7;
  color: #444;
  max-width: 720px;
}

/* ===============================
   主体布局
   =============================== */
.product-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;

  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
}

@media (max-width: 960px) {
  .product-main {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

/* ===============================
   图片区域
   =============================== */
.product-gallery {
  background: #fff;
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
}

.product-gallery img {
  width: 100%;
  display: block;
  border-radius: 14px;
  object-fit: cover;
}

/* ===============================
   信息卡片
   =============================== */
.product-info {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
}

/* 信息块 */
.product-section {
  margin-bottom: 32px;
}

.product-section:last-child {
  margin-bottom: 0;
}

.product-section h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1d1d1f;
}

.product-section p,
.product-section li {
  font-size: 15px;
  line-height: 1.7;
  color: #555;
}

/* 列表 */
.product-section ul {
  padding-left: 18px;
}

.product-section li {
  margin-bottom: 8px;
}

/* ===============================
   规格参数
   =============================== */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.spec-table tr {
  border-bottom: 1px solid #eee;
}

.spec-table td {
  padding: 10px 0;
  color: #555;
}

.spec-table td:first-child {
  font-weight: 500;
  color: #1d1d1f;
  width: 40%;
}

/* ===============================
   CTA 区
   =============================== */
.product-cta {
  margin-top: 40px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.product-cta .btn {
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
}

/* ===============================
   返回链接
   =============================== */
.product-back {
  margin-top: 32px;
}

.product-back a {
  font-size: 14px;
  color: #7d7f89;
  text-decoration: none;
}

.product-back a:hover {
  color: #c99a5b;
}

/* ===== Finish gallery (replace overview) ===== */
.finish-hero{
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(230,231,238,.9);
  box-shadow: 0 18px 45px rgba(15,23,42,.10);
  background: #fff;
}

.finish-hero img{
  width: 100%;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: opacity .25s ease;
}

.finish-caption{
  padding: 12px 14px;
  font-size: 13px;
  color: #7d7f89;
  background: rgba(245,245,247,.75);
  border-top: 1px solid rgba(230,231,238,.9);
}

.finish-grid{
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 12px;
}

.finish-thumb{
  border: 1px solid rgba(230,231,238,.9);
  border-radius: 14px;
  overflow: hidden;
  padding: 0;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(15,23,42,.06);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.finish-thumb img{
  width: 100%;
  height: 92px;
  object-fit: cover;
  display: block;
}

.finish-thumb:hover{
  transform: translateY(-3px);
  box-shadow: 0 18px 45px rgba(15,23,42,.10);
  border-color: rgba(201,154,91,.45);
}

.finish-thumb.is-active{
  border-color: rgba(201,154,91,.75);
  box-shadow: 0 18px 45px rgba(15,23,42,.12);
}

.finish-note{
  margin-top: 12px;
  font-size: 13px;
  color: #7d7f89;
  line-height: 1.6;
}

@media (max-width: 980px){
  .finish-grid{ grid-template-columns: repeat(4, minmax(0,1fr)); }
  .finish-thumb img{ height: 86px; }
}

@media (max-width: 520px){
  .finish-grid{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .finish-thumb img{ height: 110px; }
}