/* ============================================
   XIUKEAI — Detail & About Pages
   ============================================ */

/* ---- Product Detail ---- */

.detail-hero {
  background: var(--color-black);
  padding-top: var(--nav-height);
}

.detail-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  padding: var(--space-16) 0;
  align-items: start;
  min-height: calc(100vh - var(--nav-height));
}

@media (min-width: 768px) {
  .detail-hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
  }
}

.detail-hero__img-wrap {
  aspect-ratio: 1 / 1;
  min-height: 300px;
  background: var(--color-gray-900);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8rem;
  border: 1px solid rgba(255,255,255,0.06);
  position: relative;
  overflow: hidden;
  align-self: start;
}

.detail-hero__img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 30%, rgba(255,59,48,0.08), transparent 60%);
}

.detail-hero__info {
  color: var(--color-white);
}

.detail-hero__category {
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: var(--space-4);
}

.detail-hero__name {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.detail-hero__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

/* 型号区块 */
.detail-hero__model-wrap {
  margin-bottom: var(--space-8);
}

.detail-hero__model-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  margin-right: 4px;
}

.detail-hero__model {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 4px;
}

.detail-hero__model-wrap.expanded .detail-hero__model {
  -webkit-line-clamp: unset;
  overflow: visible;
}

.detail-hero__model-toggle {
  display: none;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  margin-left: 6px;
}

.detail-hero__model-wrap.has-more .detail-hero__model-toggle {
  display: inline;
}

/* Color picker */
.color-picker {
  margin-bottom: var(--space-8);
}

.color-picker__label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-3);
}

.color-picker__label span {
  color: var(--color-white);
  font-weight: 500;
}

.color-picker__swatches {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.swatch {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--duration-fast), transform var(--duration-fast);
  position: relative;
}

.swatch:hover, .swatch.active {
  transform: scale(1.15);
  border-color: var(--color-white);
}

/* CTA */
.detail-cta {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  background: var(--color-red);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  transition: background var(--duration-fast), transform var(--duration-fast);
}

.btn-primary:hover {
  background: var(--color-red-dark);
  transform: scale(1.03);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  background: transparent;
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(255,255,255,0.25);
  transition: border-color var(--duration-fast), background var(--duration-fast);
}

.btn-outline:hover {
  border-color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.05);
}

/* Specs */
.detail-specs {
  background: var(--color-gray-100);
  padding: var(--section-padding) 0;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-12);
}

@media (min-width: 768px) {
  .specs-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.spec-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
}

.spec-item__icon {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-3);
}

.spec-item__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
}

.spec-item__label {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  letter-spacing: 0.05em;
}

/* Related products */
.related {
  background: var(--color-white);
  padding: var(--section-padding) 0;
}

/* ---- About Page ---- */

.page-hero {
  padding-top: calc(var(--nav-height) + var(--space-16));
  padding-bottom: var(--space-16);
  background: var(--color-black);
  text-align: center;
  color: var(--color-white);
}

.page-hero__label {
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-red);
  margin-bottom: var(--space-4);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.page-hero__sub {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.5);
  font-weight: 300;
}


.about-story {
  padding: var(--section-padding) 0;
  background: var(--color-white);
}

.about-story__inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.about-story__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-8);
}

.about-story__body {
  font-size: var(--text-lg);
  color: var(--color-gray-500);
  line-height: 1.9;
}

.about-story__body p + p {
  margin-top: var(--space-6);
}

/* Values */
.about-values {
  background: var(--color-black);
  padding: var(--section-padding) 0;
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

@media (min-width: 768px) {
  .values-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.value-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: background var(--duration-base), border-color var(--duration-base);
}

.value-card:hover {
  background: rgba(255,59,48,0.06);
  border-color: rgba(255,59,48,0.2);
}

.value-card__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.value-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.value-card__desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}

/* Contact */
.contact {
  background: var(--color-gray-100);
  padding: var(--section-padding) 0;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-top: var(--space-12);
}

@media (min-width: 768px) {
  .contact__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.contact-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.contact-card__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.contact-card__title {
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

.contact-card__value {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  line-height: 1.6;
}

.contact-card__link {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-red);
  letter-spacing: 0.04em;
}