:root {
  --supplier-bg: #f6f8fb;
  --supplier-card: #ffffff;
  --supplier-ink: #1b2533;
  --supplier-muted: #5a6b82;
  --supplier-line: rgba(27, 37, 51, 0.10);
  --supplier-accent: #0066CC;
}

body {
  background: radial-gradient(1200px 600px at 70% -10%, rgba(0, 102, 204, 0.12), transparent 60%),
              radial-gradient(800px 500px at 0% 0%, rgba(249, 249, 0, 0.10), transparent 55%),
              var(--supplier-bg);
  color: var(--supplier-ink);
}

.supplier-hero {
  max-width: 1200px;
  margin: 28px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items: center;
}

.supplier-hero-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.92), rgba(255,255,255,0.75));
  border: 1px solid var(--supplier-line);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.08);
  position: relative;
  overflow: hidden;
}

.supplier-hero-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #1671c8, #59b8ff, #87deff);
}

.supplier-kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--supplier-accent);
}

.supplier-title {
  margin: 10px 0 8px;
  font-size: 2.1rem;
  line-height: 1.15;
}

.supplier-subtitle {
  margin: 0 0 14px;
  color: var(--supplier-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.supplier-hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.supplier-hero-media {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--supplier-line);
  background: var(--supplier-card);
  box-shadow: 0 18px 40px rgba(0,0,0,0.08);
  position: relative;
}

.supplier-hero-carousel {
  display: flex;
  width: 100%;
  height: 320px;
  transition: transform 500ms ease;
}

.supplier-hero-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 320px;
  object-fit: contain;
  display: block;
  background: #f7f8fa;
}

.supplier-hero-media::after {
  content: none;
}

.supplier-hero-dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 2;
}

.supplier-hero-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.6);
  cursor: pointer;
}

.supplier-hero-dot.active {
  background: #fff;
  box-shadow: 0 0 0 2px rgba(0,0,0,0.25);
}

.supplier-highlights {
  max-width: 1200px;
  margin: 18px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.supplier-highlight {
  background: var(--supplier-card);
  border: 1px solid var(--supplier-line);
  border-radius: 16px;
  padding: 16px 16px 14px;
  box-shadow: 0 10px 22px rgba(0,0,0,0.06);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  position: relative;
  overflow: hidden;
}

.supplier-highlight::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #1975cc, #5fbcff, #9ce8ff);
}

.supplier-highlight:hover {
  transform: translateY(-3px);
  border-color: rgba(0,102,204,0.28);
  box-shadow: 0 14px 28px rgba(8, 53, 101, 0.14);
}

.supplier-highlight h3 {
  margin: 0 0 6px;
  color: var(--supplier-accent);
  font-size: 1.05rem;
}

.supplier-highlight p {
  margin: 0;
  color: var(--supplier-muted);
  line-height: 1.65;
}

.supplier-main {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 20px 50px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 18px;
}

.supplier-side {
  position: sticky;
  top: 110px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: calc(100vh - 140px);
  overflow: auto;
  padding-right: 6px;
}

.supplier-nav {
  background: var(--supplier-card);
  border: 1px solid var(--supplier-line);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.06);
  transition: box-shadow 0.22s ease, border-color 0.22s ease;
}

.supplier-nav:hover {
  border-color: rgba(0,102,204,0.2);
  box-shadow: 0 16px 30px rgba(8, 52, 99, 0.12);
}

.supplier-nav h2 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--supplier-ink);
}

.supplier-nav button {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 10px;
  border-radius: 12px;
  color: var(--supplier-ink);
  border: 1px solid transparent;
  background: transparent;
  width: 100%;
  cursor: pointer;
  text-align: left;
  min-height: 52px;
}

.supplier-nav button:hover {
  border-color: rgba(0,102,204,0.25);
  background: rgba(0,102,204,0.05);
}

.supplier-nav button:focus-visible {
  outline: none;
  border-color: rgba(0,102,204,0.35);
  box-shadow: 0 0 0 4px rgba(0,102,204,0.12);
}

.supplier-nav button.active {
  border-color: rgba(0,102,204,0.35);
  background: rgba(0,102,204,0.10);
}

.supplier-nav button > span {
  font-weight: 800;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.supplier-nav small {
  color: var(--supplier-muted);
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--supplier-line);
  background: rgba(255,255,255,0.8);
  white-space: nowrap;
}

.supplier-nav button.active small {
  border-color: rgba(0,102,204,0.25);
  color: #0b4fa3;
  background: rgba(0,102,204,0.08);
}

.supplier-side-media {
  background: var(--supplier-card);
  border: 1px solid var(--supplier-line);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.06);
  display: none;
  transition: box-shadow 0.22s ease, border-color 0.22s ease;
}

.supplier-side-media:hover {
  border-color: rgba(0,102,204,0.2);
  box-shadow: 0 16px 30px rgba(8, 52, 99, 0.12);
}

.supplier-side-media h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--supplier-ink);
}

.supplier-thumb-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.supplier-thumb {
  display: block;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--supplier-line);
  background: #fff;
}

.supplier-thumb img {
  width: 100%;
  height: 96px;
  object-fit: cover;
  display: block;
}

.supplier-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.supplier-featured h3 {
  margin: 0 0 10px;
  font-size: 1.05rem;
  color: var(--supplier-ink);
}

.supplier-video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 比例 */
  height: 0;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--supplier-line);
  background: #000;
}

.supplier-video-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.supplier-video-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.supplier-featured-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.supplier-featured-item {
  display: block;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--supplier-line);
  background: #fff;
}

.supplier-featured-img {
  width: 100%;
  height: 250px;
  object-fit: contain;
  background: #fff;
  display: block;
}

.supplier-panel {
  background: var(--supplier-card);
  border: 1px solid var(--supplier-line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.06);
  position: relative;
  overflow: hidden;
}

.supplier-panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: linear-gradient(90deg, #1a73c8, #5ab8ff, #91e2ff);
  opacity: 0.9;
}

.supplier-panel h2 {
  margin: 0;
  font-size: 1.35rem;
}

.supplier-badge {
  display: inline-block;
  background: linear-gradient(135deg, #e8433e, #c0392b);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-top: 6px;
  letter-spacing: 0.5px;
}

.supplier-panel p {
  margin: 8px 0 0;
  color: var(--supplier-muted);
  line-height: 1.7;
}

.supplier-details {
  border: 1px solid var(--supplier-line);
  background: #f8f9fa;
  border-radius: 14px;
  padding: 12px 14px;
}

.supplier-details summary {
  cursor: pointer;
  font-weight: 900;
  color: #333;
}

.supplier-details summary::marker {
  color: var(--supplier-accent);
}

.supplier-sections {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.supplier-section {
  background: var(--supplier-card);
  border: 1px solid var(--supplier-line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.06);
}

.supplier-section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--supplier-line);
  padding-bottom: 12px;
  margin-bottom: 14px;
}

.supplier-section-header h3 {
  margin: 0;
  font-size: 1.25rem;
}

.supplier-section-header p {
  margin: 6px 0 0;
  color: var(--supplier-muted);
  line-height: 1.65;
}

.supplier-grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.supplier-figure {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--supplier-line);
  background: #fff;
}

.supplier-figure img {
  width: 100%;
  height: 320px;
  object-fit: contain;
  background: #fff;
  display: block;
}

.supplier-bullets {
  margin: 0;
  padding-left: 18px;
  color: var(--supplier-ink);
  line-height: 1.7;
}

.supplier-bullets li {
  margin: 6px 0;
}

.supplier-specs {
  border: 1px solid var(--supplier-line);
  background: #f8f9fa;
  border-radius: 14px;
  padding: 14px;
}

.supplier-specs h4 {
  margin: 0 0 10px;
  font-size: 1rem;
  color: var(--supplier-ink);
}

.supplier-specs dl {
  margin: 0;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 10px 14px;
}

.supplier-specs dt {
  font-weight: 800;
  color: #333;
}

.supplier-specs dd {
  margin: 0;
  color: #555;
}

.supplier-docs {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.supplier-docs a {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--supplier-line);
  background: #fff;
  color: var(--supplier-ink);
  text-decoration: none;
}

.supplier-docs a:hover {
  border-color: rgba(0,102,204,0.25);
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.supplier-docs span {
  color: var(--supplier-muted);
  font-size: 0.95rem;
}

.supplier-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 10px 0 16px;
}

.supplier-gallery-img {
  width: 100%;
  height: 240px;
  object-fit: contain;
  border-radius: 14px;
  border: 1px solid var(--supplier-line);
  background: #fff;
  box-shadow: 0 10px 22px rgba(0,0,0,0.06);
}

@media (max-width: 992px) {
  .supplier-hero {
    grid-template-columns: 1fr;
  }
  .supplier-hero-carousel,
  .supplier-hero-slide {
    height: 260px;
  }
  .supplier-highlights {
    grid-template-columns: 1fr;
  }
  .supplier-main {
    grid-template-columns: 1fr;
  }
  .supplier-side {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
  .supplier-grid2 {
    grid-template-columns: 1fr;
  }
  .supplier-figure img {
    height: 260px;
  }

  .supplier-featured-grid {
    grid-template-columns: 1fr;
  }

  .supplier-featured-img {
    height: 220px;
  }

  .supplier-gallery-img {
    height: 220px;
  }
}