/* ===== 首页专属样式 (page-home) ===== */
.page-home {
  --hero-bg-color: #0B1A2C;
  --hero-accent: #D4AF37;
  --card-hover-shadow: 0 8px 40px rgba(212, 175, 55, 0.25);
  --filter-active-bg: #7B2D8B;
  --step-bg: #39FF14;
  font-family: var(--font-body);
  color: var(--color-text);
}

/* 所有图片响应式 */
.page-home img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 首屏 */
.page-home .section-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--hero-bg-color);
  color: var(--color-white);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-home .hero__clip-left,
.page-home .hero__clip-right {
  position: absolute;
  z-index: 1;
  width: 40%;
  height: 70%;
  background: var(--color-purple);
  opacity: 0.35;
  mix-blend-mode: screen;
}

.page-home .hero__clip-left {
  top: -10%;
  left: -5%;
  clip-path: polygon(0 0, 100% 20%, 80% 100%, 0 100%);
}

.page-home .hero__clip-right {
  bottom: -10%;
  right: -5%;
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 80%);
  background: var(--color-accent);
  opacity: 0.25;
}

.page-home .hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
}

.page-home .rotate-label {
  display: inline-block;
  writing-mode: vertical-rl;
  font-family: var(--font-accent);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  position: absolute;
  left: 1rem;
  top: 3rem;
}

@media (min-width: 768px) {
  .page-home .rotate-label {
    left: 2rem;
    top: 5rem;
  }
}

.page-home .hero__title {
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.1;
  margin: 0 0 1rem;
  text-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
}

.page-home .hero__sub {
  font-size: clamp(1rem, 3vw, 1.5rem);
  font-family: var(--font-accent);
  letter-spacing: 0.3em;
  margin-bottom: 2rem;
  color: var(--color-light);
}

/* 通用 section */
.page-home .content-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1rem;
}

.page-home .section-header {
  position: relative;
  margin-bottom: 2rem;
  padding-left: 3rem;
}

.page-home .section-header .rotate-label {
  position: absolute;
  left: 0;
  top: 0.5rem;
  writing-mode: vertical-rl;
  font-size: 0.7rem;
  color: var(--color-accent);
}

.page-home .section-number {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.page-home .section-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}

.page-home .section-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  max-width: 30em;
}

/* 产品线 */
.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.page-home .tag-label {
  display: inline-block;
  padding: 0.3rem 1rem;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-accent);
  font-size: 0.75rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
  background: transparent;
}

.page-home .tag-label--filled {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.page-home .tag-label:hover,
.page-home .tag-label:focus-visible {
  background: var(--color-purple);
  border-color: var(--color-purple);
  color: var(--color-white);
}

.page-home .product-grid {
  display: grid;
  gap: 1.5rem;
}

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

.page-home .product-card {
  position: relative;
  overflow: hidden;
  border: var(--border-gold);
  background: var(--color-white);
  transition: transform 0.3s, box-shadow 0.3s;
}

.page-home .product-card:hover,
.page-home .product-card:focus-within {
  transform: scale(1.02);
  box-shadow: var(--card-hover-shadow);
}

.page-home .product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.page-home .card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1rem;
  background: linear-gradient(transparent 60%, rgba(11, 26, 44, 0.8));
  color: var(--color-white);
  opacity: 0;
  transition: opacity 0.3s;
}

.page-home .product-card:hover .card-overlay,
.page-home .product-card:focus-within .card-overlay {
  opacity: 1;
}

.page-home .card-overlay h3 {
  margin: 0.5rem 0;
  font-size: 1.1rem;
  font-weight: 700;
}

/* 案例 */
.page-home .case-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .page-home .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.page-home .case-card {
  border: 2px dashed var(--color-accent);
  background: var(--color-white);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-home .case-card:hover,
.page-home .case-card:focus-within {
  border-style: solid;
  box-shadow: var(--card-hover-shadow);
}

.page-home .case-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-home .case-info {
  padding: 1rem;
}

.page-home .case-info h3 {
  margin: 0.5rem 0;
  font-size: 1.2rem;
  font-weight: 700;
}

.page-home .case-info .btn {
  display: inline-block;
  padding: 0.4rem 1.2rem;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.3s, color 0.3s;
}

.page-home .case-info .btn:hover,
.page-home .case-info .btn:focus-visible {
  background: var(--color-accent);
  color: var(--color-white);
}

/* 快速入口 */
.page-home .quick-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .page-home .quick-layout {
    flex-direction: row;
    align-items: flex-start;
  }
}

.page-home .quick-visual {
  flex: 1;
  max-width: 500px;
}

.page-home .quick-visual img {
  width: 100%;
  height: auto;
  border: 2px solid var(--color-accent);
}

.page-home .quick-steps {
  flex: 1;
  padding: 1rem;
}

.page-home .steps-list {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
}

.page-home .steps-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.page-home .step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--step-bg);
  color: var(--color-primary);
  font-weight: 800;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.page-home .quick-steps .btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: background 0.3s;
  border: none;
}

.page-home .quick-steps .btn:hover,
.page-home .quick-steps .btn:focus-visible {
  background: var(--color-purple);
}

/* 按钮通用 */
.page-home .btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  padding: 0.6rem 1.8rem;
  font-weight: 700;
  transition: background 0.3s;
}

.page-home .btn--primary:hover,
.page-home .btn--primary:focus-visible {
  background: var(--color-purple);
}

/* 纸叠效果 */
.page-home .paper-stack {
  box-shadow: 0 2px 8px rgba(0,0,0,0.05), 0 8px 24px rgba(0,0,0,0.08);
}

/* 移动端调整 */
@media (max-width: 767px) {
  .page-home .section-header {
    padding-left: 2.5rem;
  }
  .page-home .hero__title {
    font-size: 2.2rem;
  }
  .page-home .product-card img,
  .page-home .case-card img {
    height: 180px;
  }
}