/* =====================================================================
   product-detail.css - Product detail page styles (product-detail.html)
   ===================================================================== */
/* ============================================================
   产品详情 / 联系 / 文章
   ============================================================ */
.pd-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 60px;
  align-items: stretch;
}
.pd-image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: linear-gradient(140deg, var(--pine-800), var(--pine-700));
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(7,19,14,.16);
  max-width: 460px;
  min-height: 280px;
  justify-self: start;
}
.pd-image img { position: absolute; inset: 0; width: 100%; height: 100%; min-height: 100%; object-fit: cover; object-position: center; display: block; }
.pd-image .pd-orb {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(232,176,75,.25), transparent 60%),
    radial-gradient(circle at 70% 70%, rgba(42,157,120,.25), transparent 60%);
  pointer-events: none;
}
.pd-cat {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 700;
  margin-bottom: 14px;
}
.pd-name {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 600;
  color: var(--pine-800);
  line-height: 1.2;
  margin-bottom: 18px;
}
.pd-funcs {
  display: flex; flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0; list-style: none;
}
.pd-funcs li {
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(21,122,91,.08);
  border: 1px solid rgba(21,122,91,.15);
  color: var(--moss);
  font-size: 12.5px;
  font-weight: 600;
}
.pd-overview {
  font-size: 15px;
  color: #4d5b55;
  line-height: 1.85;
  margin-bottom: 28px;
}
.pd-tabs {
  border: 1px solid rgba(7,19,14,.08);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}
.pd-tab-titles {
  display: flex;
  background: linear-gradient(180deg, #faf7ee, #f0ead9);
  border-bottom: 1px solid rgba(7,19,14,.08);
}
.pd-tab-titles button {
  flex: 1;
  padding: 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  border: 0;
  background: transparent;
  color: var(--moss);
  cursor: pointer;
  transition: all .3s;
  border-bottom: 2px solid transparent;
}
.pd-tab-titles button.active {
  color: var(--pine-800);
  border-bottom-color: var(--amber);
  background: #fff;
}
.pd-tab-body { padding: 22px 24px 26px; }
.pd-spec-list {
  list-style: none;
  padding: 0; margin: 0;
  display: grid;
  gap: 10px;
}
.pd-spec-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #4d5b55;
  line-height: 1.65;
}
.pd-spec-list .dot {
  width: 6px; height: 6px;
  background: var(--amber);
  border-radius: 50%;
  margin-top: 8px;
  flex-shrink: 0;
}
.pd-reg-row {
  display: flex;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px dashed rgba(7,19,14,.12);
  font-size: 14px;
}
.pd-reg-row:last-child { border-bottom: 0; }
.pd-reg-row .lbl {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--moss);
  font-weight: 700;
}
.pd-reg-row .val {
  font-family: var(--font-sans);
  font-weight: 600;
  color: var(--pine-800);
}
/* ---- 产品介绍正文（静态） ---- */
.pd-intro-body h3 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--pine-800);
  margin: 34px 0 14px;
}
.pd-intro-body p {
  color: #5a615d;
  line-height: 1.95;
  margin-bottom: 16px;
}
.pd-intro-body ul { list-style: none; padding: 0; margin-bottom: 18px; }
.pd-intro-body ul li {
  position: relative;
  color: #5a615d;
  line-height: 1.9;
  padding-left: 18px;
  margin-bottom: 8px;
}
.pd-intro-body ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
@media (max-width: 1024px) {
  .pd-image { max-width: 100%; }
}
@media (max-width: 900px) {
  .pd-grid { grid-template-columns: 1fr; gap: 40px; }
  .pd-image { max-width: 520px; justify-self: center; }
}
@media (max-width: 600px) {
  .pd-tab-titles { flex-wrap: wrap; }
  .pd-tab-titles button { padding: 10px 8px; font-size: 11.5px; }
}
/* ============================================================
   产品详情页 - 在线留言
   ============================================================ */
/* 产品介绍区域白底 */
.section-white {
  background: #ffffff;
}
/* 关于此产品的技术咨询 - 与"同类产品"区域一致的背景色 */
.inquiry-section {
  background: var(--cream);
}
.inquiry-card {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  background: #fff;
  border-radius: 20px;
  padding: 50px 46px;
  border: 1px solid rgba(7,19,14,.08);
  box-shadow: 0 18px 50px rgba(7,19,14,.08);
}
.inquiry-info { padding-top: 10px; }
.inquiry-info .eyebrow { color: var(--amber); }
.inquiry-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
  color: var(--pine-800);
  margin: 14px 0 14px;
  line-height: 1.25;
}
.inquiry-info p {
  font-size: 14.5px;
  color: #6d7a73;
  line-height: 1.75;
  margin-bottom: 22px;
}
.inquiry-bullets {
  list-style: none;
  padding: 0; margin: 0;
  display: flex; flex-direction: column;
  gap: 12px;
}
.inquiry-bullets li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: #4d5b55;
  line-height: 1.6;
}
.inquiry-bullets li .ib-ico {
  width: 22px; height: 22px;
  flex-shrink: 0;
  margin-top: 1px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(21,122,91,.12);
  color: var(--moss);
  font-size: 11px;
  font-weight: 800;
}

.inquiry-form { display: flex; flex-direction: column; gap: 16px; height: 100%; padding-top: 30px;}
.inquiry-form label {
  display: block;
}
.inquiry-form label > span {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--moss);
  margin-bottom: 7px;
}
.inquiry-form label > span i { color: var(--amber); font-style: normal; }
.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1.5px solid rgba(7,19,14,.14);
  border-radius: 9px;
  background: #fff;
  font-size: 14px;
  color: var(--pine-800);
  outline: none;
  font-family: inherit;
  transition: border-color .3s, box-shadow .3s;
}
.inquiry-form textarea { resize: vertical; min-height: 220px; flex: 1 1 auto; }
.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--moss);
  box-shadow: 0 0 0 4px rgba(21,122,91,.10);
}
.inquiry-form .row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.inquiry-form .row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}
@media (max-width: 900px) {
  .inquiry-card { grid-template-columns: 1fr; gap: 30px; padding: 32px 26px; }
  .inquiry-form .row-2, .inquiry-form .row-3 { grid-template-columns: 1fr; }
  .inquiry-form { height: auto; }
  .inquiry-form textarea { flex: none; }
}