/* ============================================================
   products.css — 产品中心页样式
   依赖 style.css 的设计变量（--accent-primary 等）
   ============================================================ */

/* ---------- 页面 Hero ---------- */
.products-hero {
  padding: 100px 0 24px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.products-hero .section-title {
  margin-bottom: 16px;
}

.products-hero .section-desc {
  max-width: 640px;
  margin: 0 auto;
}

/* 描述段紧贴下方 STAR 卡片，不再让 .section-header 的 80px 全局 margin-bottom 推下 */
.products-hero .section-header {
  margin-bottom: 0;
}

/* ---------- 明星产品（Xpark） ---------- */
.star-product {
  padding: 16px 0 100px;
  position: relative;
  z-index: 1;
}

.star-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 56px;
  position: relative;
  overflow: hidden;
}

/* 黑金氛围光，呼应 Xpark 原厂渲染图 */
.star-card::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -10%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.star-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.star-visual img {
  width: 100%;
  max-width: 460px;
  height: auto;
  border-radius: 16px;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.6));
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.star-card:hover .star-visual img {
  transform: translateY(-8px) scale(1.02);
}

.star-badge {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: #d4af37;
  border: 1px solid rgba(212, 175, 55, 0.4);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 20px;
}

.star-info h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.star-info .star-model {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.star-info .star-tagline {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 28px;
  line-height: 1.7;
}

.star-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.star-spec-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px 16px;
}

.star-spec-item .spec-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: #e8c96a;
  display: block;
  margin-bottom: 2px;
}

.star-spec-item .spec-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ---------- 分类筛选栏 ---------- */
.filter-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.filter-btn {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  padding: 10px 24px;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
}

.filter-btn.active {
  color: #fff;
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  box-shadow: 0 0 24px rgba(230, 0, 18, 0.35);
}

/* ---------- 产品卡片网格 ---------- */
.products-section {
  padding: 20px 0 120px;
  position: relative;
  z-index: 1;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s, box-shadow 0.3s;
  /* 默认可见：避免无 JS / 爬虫 / 截图工具场景下 18 款网格永久 opacity:0 */
}

/* 入场隐藏仅在脚本可用时生效；脚本禁用或不支持 scripting 媒体查询的旧浏览器
   一律直接可见（SEO 与无障碍兜底） */
@media (scripting: enabled) {
  .product-card {
    opacity: 0;
    transform: translateY(32px);
  }
  .product-card.reveal-active {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-glow);
}

.product-card-img {
  position: relative;
  aspect-ratio: 4 / 3;
  background: radial-gradient(ellipse at 50% 60%, #161616 0%, #0a0a0a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 24px;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-card-img img {
  transform: scale(1.06);
}

.hot-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--accent-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 5px 12px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(230, 0, 18, 0.5);
}

.cat-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  font-size: 0.72rem;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
}

.product-card-body {
  padding: 22px 24px 26px;
}

.product-card-model {
  font-size: 0.8rem;
  color: var(--accent-secondary);
  letter-spacing: 0.08em;
  font-weight: 600;
  margin-bottom: 6px;
}

.product-card-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.product-tag {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 4px 10px;
}

/* 图片缺失时的占位 */
.img-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
}

.img-fallback img {
  width: 56px;
  opacity: 0.5;
  padding: 0;
}

.img-fallback span {
  font-size: 0.8rem;
}

/* ---------- 产品详情弹层 ---------- */
.product-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s, visibility 0.3s;
}

.product-modal.open {
  visibility: visible;
  opacity: 1;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
}

.modal-panel {
  position: relative;
  width: 100%;
  max-width: 960px;
  max-height: 86vh;
  overflow-y: auto;
  background: #0c0c0c;
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 44px;
  transform: translateY(24px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-modal.open .modal-panel {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
}

.modal-close:hover {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.modal-visual {
  background: radial-gradient(ellipse at 50% 60%, #181818 0%, #0a0a0a 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
  overflow: hidden;
}

.modal-visual img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 28px;
}

.modal-info .product-card-model {
  font-size: 0.85rem;
}

.modal-info h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.modal-info .modal-tagline {
  color: var(--text-secondary);
  margin-bottom: 24px;
  line-height: 1.7;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 28px;
}

.spec-table tr {
  border-bottom: 1px solid var(--border-subtle);
}

.spec-table tr:last-child {
  border-bottom: none;
}

.spec-table td {
  padding: 11px 0;
  font-size: 0.92rem;
  vertical-align: top;
  line-height: 1.6;
}

.spec-table td:first-child {
  color: var(--text-secondary);
  width: 88px;
  flex-shrink: 0;
  white-space: nowrap;
}

.modal-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 13px 28px;
  border-radius: 999px;
  transition: var(--transition);
}

.modal-cta:hover {
  box-shadow: 0 8px 32px rgba(230, 0, 18, 0.45);
  transform: translateY(-2px);
}

.inquire-note {
  display: block;
  margin-top: 14px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ---------- 底部代理声明 ---------- */
.brand-note {
  padding: 0 0 80px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.85rem;
  position: relative;
  z-index: 1;
}

.brand-note img {
  height: 22px;
  vertical-align: middle;
  margin-right: 8px;
  opacity: 0.8;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .star-card {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 40px;
  }

  .star-visual img {
    max-width: 380px;
  }

  .modal-panel {
    grid-template-columns: 1fr;
    padding: 36px;
    gap: 28px;
  }

  .modal-visual {
    min-height: 240px;
  }
}

@media (max-width: 640px) {
  .products-hero {
    padding: 140px 0 56px;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .star-card {
    padding: 28px 22px;
    border-radius: 18px;
  }

  .star-specs {
    grid-template-columns: 1fr 1fr;
  }

  .filter-bar {
    gap: 8px;
    margin-bottom: 40px;
  }

  .filter-btn {
    font-size: 0.85rem;
    padding: 8px 16px;
  }

  .modal-panel {
    padding: 26px 20px;
    border-radius: 18px;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .product-card,
  .star-visual img,
  .modal-panel {
    transition: none;
  }

  .product-card {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 外贸拓客服务横幅 ---------- */
.service-banner {
  padding: 24px 0 8px;
}

.service-banner-card {
  border-radius: 20px;
  padding: 48px 56px;
  background: radial-gradient(120% 140% at 0% 0%, rgba(230, 0, 18, 0.12) 0%, transparent 60%),
              radial-gradient(80% 120% at 100% 100%, rgba(230, 0, 18, 0.06) 0%, transparent 55%),
              var(--bg-surface);
  border: 1px solid var(--border-glow);
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

.service-banner-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-primary), transparent);
}

.service-banner-badge {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid rgba(230, 0, 18, 0.3);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: #ff4d5a;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  background: rgba(230, 0, 18, 0.07);
}

.service-banner-body h2 {
  font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.service-banner-body p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 720px;
  margin-bottom: 24px;
}

.service-banner-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .service-banner-card { padding: 32px 24px; }
  .service-banner-links .btn { flex: 1; text-align: center; }
}