.product-main {
  padding: 28px 0 42px;
}

.detail-back {
  margin-bottom: 16px;
}

.detail-back a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(47, 215, 255, 0.16);
  background: rgba(47, 215, 255, 0.08);
  color: #dff8ff;
  font-size: 13px;
  font-weight: 700;
}

.detail-layout,
.detail-section,
.detail-summary-card,
.feature-card,
.case-card,
.faq-item,
.not-found-card {
  position: relative;
  border: 1px solid rgba(47, 215, 255, 0.16);
  background: linear-gradient(180deg, rgba(7, 19, 32, 0.94), rgba(4, 12, 22, 0.98));
  box-shadow:
    inset 0 0 38px rgba(47, 120, 255, 0.08),
    0 0 0 1px rgba(47, 215, 255, 0.04),
    0 24px 70px rgba(0, 0, 0, 0.32);
}

.detail-layout::before,
.detail-section::before,
.detail-summary-card::before,
.feature-card::before,
.case-card::before,
.faq-item::before,
.not-found-card::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(47, 215, 255, 0.08);
  pointer-events: none;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 28px;
}

.detail-copy {
  display: grid;
  gap: 14px;
}

.detail-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: #7dcff1;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.detail-copy h1 {
  margin: 0;
  font-family: "Avenir Next", "HarmonyOS Sans SC", "PingFang SC", sans-serif;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.05em;
  color: #f2fbff;
}

.detail-summary {
  margin: 0;
  max-width: 720px;
  color: #b6dbef;
  font-size: 15px;
  line-height: 1.85;
}

.detail-price-hero-copy {
  order: 1;
  display: grid;
  gap: 10px;
  max-width: 760px;
  padding: 20px 22px;
  border: 1px solid rgba(255, 211, 77, 0.28);
  background:
    radial-gradient(circle at top right, rgba(255, 211, 77, 0.14), transparent 34%),
    linear-gradient(135deg, rgba(8, 31, 53, 0.98), rgba(14, 56, 92, 0.92));
  box-shadow:
    inset 0 0 0 1px rgba(255, 211, 77, 0.08),
    0 18px 42px rgba(0, 0, 0, 0.22);
}

.detail-price-kicker {
  color: #ffe18a;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.detail-price-hero-copy > strong {
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.08;
  color: #fff7d6;
}

.detail-price-hero-copy > p {
  margin: 0;
  max-width: 640px;
  color: #d7ebf6;
  font-size: 14px;
  line-height: 1.75;
}

.detail-price-callout {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 56px;
  padding: 0 18px;
  border: 1px solid rgba(255, 211, 77, 0.34);
  background: rgba(255, 211, 77, 0.1);
  color: #fff7d6;
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.03em;
  text-shadow: 0 0 18px rgba(255, 211, 77, 0.18);
}

.detail-price-board {
  order: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  max-width: 760px;
}

.detail-price-card {
  position: relative;
  overflow: hidden;
  padding: 18px 18px 20px;
  border: 1px solid rgba(47, 215, 255, 0.16);
  background: linear-gradient(180deg, rgba(10, 39, 67, 0.92), rgba(6, 20, 35, 0.94));
  display: grid;
  gap: 6px;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 16px 32px rgba(0, 0, 0, 0.2);
}

.detail-price-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 46%);
  pointer-events: none;
}

.detail-price-card.is-retail {
  border-color: rgba(47, 215, 255, 0.24);
}

.detail-price-card.is-agent {
  border-color: rgba(255, 211, 77, 0.28);
  background: linear-gradient(180deg, rgba(48, 39, 12, 0.92), rgba(22, 17, 6, 0.96));
}

.detail-price-card small {
  color: #8bcde8;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.detail-price-card strong {
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
  color: #f8ffff;
  text-shadow: 0 0 12px rgba(47, 215, 255, 0.16);
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.detail-summary {
  order: 3;
}

.detail-meta span,
.detail-tags span,
.case-result,
.feature-index {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid rgba(47, 215, 255, 0.12);
  background: rgba(47, 215, 255, 0.06);
  color: #c9efff;
  font-size: 11px;
  font-weight: 700;
}

.detail-tags {
  order: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-actions {
  order: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.detail-cta-secondary {
  background: linear-gradient(90deg, rgba(4, 19, 33, 0.92), rgba(7, 35, 62, 0.82));
}

.detail-stack {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.detail-section {
  padding: 24px;
}

.detail-section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.detail-section-head span {
  color: #74dbf7;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.detail-section-head h2 {
  margin: 0;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.08;
  color: #f2fbff;
}

.detail-rich {
  display: grid;
  gap: 14px;
  color: #b7d9ea;
  font-size: 15px;
  line-height: 1.88;
}

.detail-rich > * {
  margin: 0;
  min-width: 0;
}

.detail-rich > * + * {
  margin-top: 0;
}

.detail-rich p,
.detail-rich ul,
.detail-rich ol,
.detail-rich blockquote,
.detail-rich h3,
.detail-rich h4 {
  color: #b7d9ea;
  font-size: 15px;
  line-height: 1.88;
}

.detail-rich h3,
.detail-rich h4 {
  color: #f2fbff;
  line-height: 1.48;
}

.detail-rich .detail-rich-heading,
.detail-rich h3.detail-rich-heading,
.detail-rich h4.detail-rich-heading {
  margin: 10px 0 2px;
  color: #f2fbff;
  font-size: clamp(22px, 2.8vw, 30px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.03em;
}

.detail-rich ul,
.detail-rich ol {
  padding-left: 22px;
}

.detail-rich li {
  line-height: 1.88;
}

.detail-rich li + li {
  margin-top: 8px;
}

.detail-rich blockquote {
  padding-left: 16px;
  border-left: 3px solid rgba(47, 215, 255, 0.28);
}

.detail-rich img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 18px;
  border: 1px solid rgba(47, 215, 255, 0.14);
}

.detail-rich video {
  display: block;
  width: 100%;
  max-width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(47, 215, 255, 0.14);
  background: rgba(4, 14, 27, 0.78);
}

.detail-rich a {
  color: #7de8ff;
  text-decoration: underline;
}

.detail-media-frame {
  position: relative;
  display: block;
  width: min(100%, 760px);
}

.detail-media-frame.is-image {
  cursor: zoom-in;
}

.detail-media-only-block {
  display: grid;
  gap: 14px;
}

.detail-media-preview-btn {
  position: absolute;
  right: 12px;
  top: 12px;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border: 1px solid rgba(47, 215, 255, 0.24);
  border-radius: 999px;
  background: rgba(3, 12, 24, 0.82);
  color: #f4fcff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.feature-grid,
.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.feature-card,
.case-card {
  padding: 18px;
}

.feature-card strong,
.case-card strong {
  display: block;
  margin-top: 12px;
  font-size: 22px;
  line-height: 1.2;
  color: #ffffff;
}

.feature-card p,
.case-card p {
  margin: 10px 0 0;
  color: #88b6d0;
  font-size: 13px;
  line-height: 1.75;
}

.case-result {
  margin-top: 14px;
  color: #fff1b8;
  border-color: rgba(255, 211, 77, 0.24);
  background: rgba(255, 211, 77, 0.08);
}

.case-media {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
  justify-items: start;
}

.case-media-image-trigger {
  position: relative;
  width: min(100%, 280px);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.case-media-image-trigger span {
  position: absolute;
  right: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(47, 215, 255, 0.2);
  background: rgba(3, 12, 24, 0.72);
  color: #f4fcff;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  pointer-events: none;
}

.case-media img,
.case-media video {
  display: block;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(47, 215, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
}

.case-media img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.case-media video {
  width: min(100%, 560px);
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(2, 8, 18, 0.88);
  backdrop-filter: blur(10px);
}

.image-lightbox[hidden] {
  display: none !important;
}

.image-lightbox-panel {
  position: relative;
  display: grid;
  place-items: center;
  width: min(96vw, 1180px);
}

.image-lightbox-close {
  position: absolute;
  top: -12px;
  right: 0;
  z-index: 2;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(47, 215, 255, 0.22);
  border-radius: 999px;
  background: rgba(3, 12, 24, 0.9);
  color: #f4fcff;
  cursor: pointer;
}

.image-lightbox img,
.image-lightbox video {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: calc(100vh - 60px);
  margin: 0 auto;
  border-radius: 20px;
  border: 1px solid rgba(47, 215, 255, 0.18);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
}

.image-lightbox img[hidden],
.image-lightbox video[hidden] {
  display: none !important;
}

.image-lightbox video {
  width: min(100%, 1180px);
  background: rgba(4, 14, 27, 0.94);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 18px 20px;
}

.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 18px;
  font-weight: 800;
  color: #f4fbff;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  color: #7dcff1;
  font-size: 22px;
  line-height: 1;
}

.faq-item[open] summary::after {
  content: "-";
}

.faq-answer {
  margin-top: 12px;
  color: #a9d0e5;
  font-size: 14px;
  line-height: 1.82;
  white-space: pre-line;
}

.not-found-card {
  padding: 26px;
}

.not-found-card h1 {
  margin: 0 0 12px;
  font-size: 34px;
}

.not-found-card p {
  margin: 0;
  color: #9bc3db;
  line-height: 1.8;
}

.not-found-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

@media (max-width: 1100px) {
  .feature-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .product-main {
    padding: 18px 0 28px;
  }

  .detail-back {
    margin-bottom: 10px;
  }

  .detail-layout,
  .detail-section,
  .detail-summary-card,
  .feature-card,
  .case-card,
  .faq-item,
  .not-found-card {
    padding: 14px;
  }

  .detail-copy h1 {
    font-size: 28px;
  }

  .detail-rich {
    gap: 10px;
    font-size: 13px;
    line-height: 1.7;
  }

  .detail-summary,
  .detail-rich p,
  .detail-rich ul,
  .detail-rich ol,
  .detail-rich blockquote,
  .detail-rich li,
  .faq-answer {
    font-size: 13px;
    line-height: 1.7;
  }

  .detail-price-board {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .detail-price-hero-copy {
    padding: 16px;
  }

  .detail-price-hero-copy > strong {
    font-size: 22px;
  }

  .detail-price-callout {
    width: 100%;
    min-height: 50px;
    padding: 10px 14px;
    font-size: 18px;
  }

  .detail-rich h3,
  .detail-rich h4 {
    line-height: 1.36;
  }

  .detail-rich .detail-rich-heading,
  .detail-rich h3.detail-rich-heading,
  .detail-rich h4.detail-rich-heading {
    font-size: 18px;
    line-height: 1.3;
  }

  .detail-actions {
    flex-direction: column;
  }

  .detail-actions .btn {
    width: 100%;
  }

  .feature-card strong,
  .case-card strong {
    font-size: 18px;
  }

  .case-media-image-trigger {
    width: 100%;
  }

  .image-lightbox {
    padding: 12px;
  }

  .image-lightbox-close {
    top: -4px;
    min-height: 34px;
    padding: 0 12px;
    font-size: 12px;
  }

  .detail-media-preview-btn {
    right: 10px;
    top: 10px;
    min-height: 30px;
    padding: 0 11px;
    font-size: 11px;
  }

  .faq-item summary {
    font-size: 15px;
  }
}