/* ============================================================
   Long Pao Fasteners — subpage styles (product pages, contact)
   Loaded in addition to style.css
   ============================================================ */

/* ---- Solid header (subpages have no hero) ---- */
.site-header.solid {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: rgba(0, 0, 0, 0.06);
}
.site-header.solid .brand-icon {
  filter: brightness(0) saturate(100%) invert(13%) sepia(48%) saturate(2419%) hue-rotate(207deg) brightness(94%) contrast(92%);
}
.site-header.solid .brand-text { color: var(--navy); }
.site-header.solid .site-nav a { color: var(--ink); }
.site-header.solid .nav-toggle span { background: var(--ink); }

/* ---- Page hero band ---- */
.page-hero {
  background: linear-gradient(135deg, var(--navy) 0%, #1a3d75 100%);
  color: var(--white);
  padding: 160px 0 var(--sp-5);
}
.page-hero h1 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}
.page-hero h1 .zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 0.42em;
  font-weight: 500;
  color: var(--sky);
  margin-top: var(--sp-1);
  letter-spacing: 0.08em;
}
.page-hero .page-intro {
  max-width: 640px;
  margin: var(--sp-3) 0 0;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
}
.page-hero .page-intro .zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 0.92em;
  margin-top: 6px;
  color: rgba(208, 227, 255, 0.8);
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin: 0 0 var(--sp-3);
}
.breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.breadcrumb .sep { margin: 0 8px; opacity: 0.5; }

/* ---- Detail section: image + overview ---- */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--sp-5);
  align-items: center;
}
.detail-grid .detail-img img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 30px 60px -30px rgba(15, 42, 85, 0.35);
}
.detail-text h2 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.7rem;
  letter-spacing: -0.01em;
  color: var(--navy);
  margin: 0 0 var(--sp-2);
}
.detail-text h2 .zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 0.68em;
  font-weight: 500;
  color: var(--grey);
  margin-top: 4px;
}
.detail-text p { margin: 0 0 var(--sp-2); font-size: 1.02rem; }
.detail-text p.zh {
  font-family: var(--font-zh);
  color: var(--grey);
  font-size: 0.96em;
  padding-left: var(--sp-2);
  border-left: 2px solid var(--sky);
}

/* ---- Spec table ---- */
.table-wrap {
  overflow-x: auto;
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  margin-top: var(--sp-4);
}
.spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  font-size: 0.98rem;
}
.spec-table th {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: left;
  padding: 14px 20px;
}
.spec-table th .zh {
  font-family: var(--font-zh);
  font-weight: 500;
  text-transform: none;
  opacity: 0.8;
  margin-left: 6px;
}
.spec-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--grey-line);
  vertical-align: top;
}
.spec-table tr:last-child td { border-bottom: none; }
.spec-table td:first-child {
  font-weight: 700;
  color: var(--navy);
  white-space: nowrap;
  width: 220px;
}
.spec-table td:first-child .zh {
  display: block;
  font-family: var(--font-zh);
  font-weight: 500;
  font-size: 0.88em;
  color: var(--grey);
}
.spec-note {
  font-size: 0.88rem;
  color: var(--grey);
  margin-top: var(--sp-2);
}
.spec-note .zh { font-family: var(--font-zh); display: block; margin-top: 2px; }

/* ---- Feature / application chips ---- */
.chip-list {
  list-style: none;
  padding: 0;
  margin: var(--sp-3) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}
.chip-list li {
  background: var(--sky-soft);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.9rem;
  color: var(--navy);
  font-weight: 500;
}
.chip-list li .zh {
  font-family: var(--font-zh);
  font-size: 0.9em;
  color: var(--grey);
  margin-left: 5px;
}

/* ---- CTA band ---- */
.cta-band {
  background: var(--navy);
  border-radius: 24px;
  padding: var(--sp-5) var(--sp-4);
  text-align: center;
  color: var(--white);
  margin-top: var(--sp-6);
}
.cta-band h3 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.8rem;
  letter-spacing: -0.01em;
  margin: 0 0 var(--sp-1);
}
.cta-band h3 .zh {
  display: block;
  font-family: var(--font-zh);
  font-size: 0.6em;
  font-weight: 500;
  color: var(--sky);
  margin-top: 6px;
}
.cta-band p {
  margin: 0 auto var(--sp-3);
  max-width: 520px;
  color: rgba(255, 255, 255, 0.8);
}
.cta-band .btn-primary { background: var(--white); color: var(--navy); }
.cta-band .btn-primary:hover { background: var(--sky); }

/* ---- Related products ---- */
.related-title {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--navy);
  margin: var(--sp-6) 0 var(--sp-3);
  text-align: center;
}
.related-title .zh {
  font-family: var(--font-zh);
  font-weight: 500;
  font-size: 0.75em;
  color: var(--grey);
  margin-left: 8px;
}
a.product-card { display: block; color: inherit; }
a.product-card:hover { opacity: 1; }

/* ---- RFQ form ---- */
.rfq-form {
  background: var(--white);
  border-radius: 20px;
  padding: var(--sp-5) var(--sp-4);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
}
.form-field { display: flex; flex-direction: column; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy);
}
.form-field label .zh {
  font-family: var(--font-zh);
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-left: 5px;
  text-transform: none;
}
.form-field label .req { color: #c0392b; margin-left: 3px; }
.form-field input,
.form-field select,
.form-field textarea {
  font-family: var(--font-en);
  font-size: 1rem;
  padding: 13px 16px;
  border: 1px solid var(--grey-line);
  border-radius: 10px;
  background: var(--off-white);
  color: var(--ink);
  transition: border-color 0.15s, background 0.15s;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--navy);
  background: var(--white);
}
.form-field textarea { resize: vertical; min-height: 130px; }
.form-field input[type="file"] { padding: 10px; background: var(--white); }
.form-hint { font-size: 0.82rem; color: var(--grey); }
.form-submit { margin-top: var(--sp-4); text-align: center; }
.form-submit .btn { min-width: 260px; justify-content: center; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .page-hero { padding: 130px 0 var(--sp-4); }
  .detail-grid { grid-template-columns: 1fr; gap: var(--sp-4); }
  .form-grid { grid-template-columns: 1fr; }
  .spec-table td:first-child { width: auto; white-space: normal; }
}

/* ---- Trade terms ---- */
.section-trade { background: var(--off-white); }
.section-trade .table-wrap { max-width: 860px; }
.spec-table td .zh-note {
  display: block;
  margin-top: 5px;
  font-family: var(--font-zh);
  font-size: 0.86em;
  color: var(--grey);
}