/* ========================================
   圆梦海淘 - 自主前端样式表
   日系精品选物商城设计系统
   ======================================== */

/* ---- 设计令牌 ---- */
:root {
  --color-warm-white: #F7F4EE;
  --color-deep-ink: #17202A;
  --color-vermilion: #C94A3A;
  --color-pine-green: #2F6F62;

  --color-bg: var(--color-warm-white);
  --color-surface: #FFFFFF;
  --color-text: var(--color-deep-ink);
  --color-text-muted: #6B7280;
  --color-border: #E5E1D8;
  --color-border-light: #F0EDE6;

  --color-primary: var(--color-pine-green);
  --color-primary-hover: #245249;
  --color-accent: var(--color-vermilion);
  --color-accent-hover: #B03D2E;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic Pro", "Yu Gothic", "Meiryo", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;

  --shadow-sm: 0 1px 2px rgba(23, 32, 42, 0.06);
  --shadow-md: 0 2px 8px rgba(23, 32, 42, 0.08);
  --shadow-lg: 0 4px 16px rgba(23, 32, 42, 0.10);
  --shadow-xl: 0 8px 32px rgba(23, 32, 42, 0.12);

  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  --container-max: 1280px;
  --container-pad: var(--space-4);
  --nav-height: 64px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* ---- 状态栏 ---- */
.status-bar {
  background: var(--color-deep-ink);
  color: #94A3B8;
  font-size: 12px;
  padding: var(--space-1) 0;
  text-align: center;
}

/* ---- 桌面吸顶头部 ---- */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  height: var(--nav-height);
}

.brand-wordmark {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-deep-ink);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.header-search { flex: 1; max-width: 480px; }

.search-form {
  display: flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: var(--space-2) var(--space-3);
  font-size: 14px;
  min-width: 0;
}
.search-input::placeholder { color: var(--color-text-muted); }

.search-btn {
  background: var(--color-primary);
  color: white;
  border: none;
  padding: var(--space-2) var(--space-4);
  font-size: 14px;
  transition: background var(--transition-fast);
}
.search-btn:hover { background: var(--color-primary-hover); }

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-left: auto;
}

.header-action-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  font-size: 14px;
  transition: color var(--transition-fast);
  position: relative;
}
.header-action-link:hover { color: var(--color-primary); }

.header-action-icon { font-size: 20px; line-height: 1; }

.cart-badge {
  position: absolute;
  top: -6px;
  right: -10px;
  background: var(--color-vermilion);
  color: white;
  font-size: 11px;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}
.cart-badge:empty, .cart-badge.d-none { display: none; }

/* ---- 分类导航 ---- */
.category-nav {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.category-nav::-webkit-scrollbar { display: none; }

.category-nav-inner {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-2) 0;
  white-space: nowrap;
}

.category-link {
  padding: var(--space-1) var(--space-3);
  font-size: 14px;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.category-link:hover { color: var(--color-text); background: var(--color-bg); }
.category-link.active {
  color: var(--color-primary);
  background: rgba(47, 111, 98, 0.08);
  font-weight: 500;
}

/* ---- 分类视觉区 ---- */
.category-hero {
  margin: var(--space-4) 0;
}
.category-hero-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  background: var(--color-bg);
}

/* ---- 目录模式提示 ---- */
.catalog-mode-notice {
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-4) 0;
  font-size: 14px;
  color: #92400E;
  text-align: center;
}
.catalog-mode-notice.d-none { display: none; }

/* ---- 信任模块 ---- */
.trust-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border-light);
  padding: var(--space-6) 0;
  margin-top: var(--space-4);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
@media (max-width: 991px) { .trust-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575px) { .trust-grid { grid-template-columns: 1fr; } }

.trust-card {
  padding: var(--space-4);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
}
.trust-card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.trust-card-icon { color: var(--color-primary); }
.trust-card-text {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ---- 主要分类视觉 ---- */
.category-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  padding: var(--space-2) 0 var(--space-6);
}
.category-visual-card {
  position: relative;
  min-height: 148px;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: var(--color-text);
}
.category-visual-card img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 148px;
  object-fit: cover;
}
.category-visual-label {
  position: absolute;
  left: var(--space-4);
  bottom: var(--space-4);
  display: grid;
  gap: var(--space-1);
  min-width: 128px;
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-vermilion);
  background: rgba(247, 244, 238, 0.94);
}
.category-visual-label strong { font-size: 18px; letter-spacing: 0.04em; }
.category-visual-label small { color: var(--color-text-muted); font-size: 12px; }
.category-visual-card:hover { border-color: var(--color-border); }

/* ---- 排序栏 ---- */
.sort-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
  gap: var(--space-4);
}
.sort-bar.d-none { display: none; }

.sort-count { font-size: 14px; color: var(--color-text-muted); }

.sort-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.sort-label { font-size: 13px; color: var(--color-text-muted); }

.sort-select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-1) var(--space-3);
  font-size: 14px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}
.sort-select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---- 商品网格 ---- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding: var(--space-6) 0;
}
@media (max-width: 1199px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 767px) { .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); } }

/* ---- 商品卡片 ---- */
.product-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.product-card:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.product-card-image {
  position: relative;
  aspect-ratio: 1;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-2);
}
.product-card-sku {
  position: absolute;
  bottom: var(--space-1);
  right: var(--space-1);
  background: rgba(23, 32, 42, 0.5);
  color: white;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}

.product-card-body {
  padding: var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin: 0 0 var(--space-1);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-card-jpname {
  font-size: 12px;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-2);
}
.product-card-price {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-deep-ink);
  margin: auto 0 0;
}
.product-card-price .currency {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 2px;
}
.product-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}
.product-card-tag {
  font-size: 11px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text-muted);
}
.product-card-tag.ems { background: #DCFCE7; color: #166534; }
.product-card-tag.tax { background: #FEE2E2; color: #991B1B; }
.product-card-stock {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.product-card-service {
  font-size: 12px;
  color: var(--color-primary);
  margin-top: var(--space-2);
}
.product-card-add {
  width: 100%;
  margin-top: var(--space-3);
  padding: var(--space-2);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition-fast);
}
.product-card-add:hover { background: var(--color-primary-hover); }
.product-card-add:active { transform: scale(0.98); }
.product-card-add[disabled] { background: #D1D5DB; cursor: not-allowed; }

/* ---- Skeleton ---- */
.skeleton {
  background: #E9E4DA;
  animation: skeleton-pulse 1.2s ease-in-out infinite alternate;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-pulse { to { opacity: 0.48; } }
.skeleton-image { aspect-ratio: 1; }
.skeleton-line { height: 14px; margin-bottom: var(--space-2); }
.skeleton-line.short { width: 60%; }
.skeleton-line.medium { width: 80%; }

/* ---- 商品图片待更新占位 ---- */
.product-image-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
  padding: var(--space-4);
}

/* ---- 加载更多 ---- */
.load-more-container { text-align: center; padding: var(--space-6) 0; }
.load-more-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-8);
  font-size: 14px;
  color: var(--color-text);
  transition: all var(--transition-fast);
}
.load-more-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.load-more-btn[aria-busy="true"] { pointer-events: none; opacity: 0.7; }

/* ---- Drawer (桌面) ---- */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(23, 32, 42, 0.4);
  z-index: 500;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}
.drawer-overlay.is-open { opacity: 1; visibility: visible; }

.product-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(520px, 95vw);
  background: var(--color-surface);
  box-shadow: var(--shadow-xl);
  z-index: 501;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.product-drawer.is-open { transform: translateX(0); }

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
}
.drawer-title { font-size: 16px; font-weight: 600; color: var(--color-text); }
.drawer-close {
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-muted);
  padding: var(--space-1);
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.drawer-close:hover { background: var(--color-bg); color: var(--color-text); }

.drawer-body { flex: 1; overflow-y: auto; padding: var(--space-5); }
.drawer-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
}
.drawer-product-name { font-size: 18px; font-weight: 600; color: var(--color-text); margin: 0 0 var(--space-1); }
.drawer-jpname { font-size: 14px; color: var(--color-text-muted); margin: 0 0 var(--space-4); }
.drawer-price { font-size: 24px; font-weight: 700; color: var(--color-deep-ink); margin: 0 0 var(--space-4); }
.drawer-price .currency { font-size: 14px; font-weight: 400; color: var(--color-text-muted); }
.drawer-sku { font-size: 13px; color: var(--color-text-muted); margin: 0 0 var(--space-4); }
.drawer-meta { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-bottom: var(--space-4); }
.drawer-description {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin: 0 0 var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}
.drawer-rules { font-size: 13px; color: var(--color-text-muted); margin-bottom: var(--space-5); list-style: none; padding: 0; }
.drawer-rules li { margin-bottom: var(--space-2); padding-left: var(--space-4); position: relative; }
.drawer-rules li::before { content: "·"; position: absolute; left: var(--space-1); }

.drawer-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-surface);
}
.drawer-add-btn {
  width: 100%;
  padding: var(--space-3);
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  transition: background var(--transition-fast);
}
.drawer-add-btn:hover { background: var(--color-primary-hover); }
.drawer-add-btn[disabled] { background: #9CA3AF; cursor: not-allowed; }

/* ---- 页脚 ---- */
.site-footer {
  background: var(--color-deep-ink);
  color: #94A3B8;
  padding: var(--space-8) 0;
  margin-top: auto;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-6);
}
.footer-brand { font-size: 18px; font-weight: 700; color: var(--color-warm-white); margin-bottom: var(--space-2); }
.footer-links { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.footer-link { font-size: 13px; color: #94A3B8; transition: color var(--transition-fast); }
.footer-link:hover { color: var(--color-warm-white); }
.footer-copy { font-size: 12px; margin-top: var(--space-4); }

/* ---- 手机底部导航 ---- */
.mobile-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  z-index: 200;
  padding-bottom: env(safe-area-inset-bottom);
}
@media (max-width: 767px) {
  .mobile-nav { display: block; }
  .site-header { position: static; }
  .header-search { display: none; }
  .container { padding-bottom: calc(60px + env(safe-area-inset-bottom)); }
}
.mobile-nav-inner { display: flex; justify-content: space-around; }
.mobile-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-2) var(--space-1);
  color: var(--color-text-muted);
  font-size: 11px;
  transition: color var(--transition-fast);
  text-decoration: none;
  gap: 2px;
}
.mobile-nav-item:hover, .mobile-nav-item.active { color: var(--color-primary); }
.mobile-nav-icon { font-size: 22px; line-height: 1; }

/* ---- 年龄门 ---- */
.age-gate {
  position: fixed;
  inset: 0;
  background: rgba(23, 32, 42, 0.85);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}
.age-gate.is-hidden { display: none; }
.age-gate-panel {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 480px;
  width: 100%;
  text-align: center;
}
.age-gate-title { font-size: 20px; font-weight: 700; color: var(--color-vermilion); margin: 0 0 var(--space-3); }
.age-gate-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-6);
  line-height: 1.6;
}
.age-gate-buttons { display: flex; gap: var(--space-3); justify-content: center; }
.age-btn {
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.age-btn-yes { background: var(--color-pine-green); color: white; }
.age-btn-yes:hover { background: var(--color-primary-hover); }
.age-btn-no { background: #E5E7EB; color: var(--color-text); }
.age-btn-no:hover { background: #D1D5DB; }

/* ---- 通知 ---- */
.notice {
  position: fixed;
  top: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  max-width: min(92vw, 480px);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 14px;
  box-shadow: var(--shadow-lg);
  animation: notice-slide-in 0.2s ease;
}
@keyframes notice-slide-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.notice-success { background: #DCFCE7; color: #166534; }
.notice-error { background: #FEE2E2; color: #991B1B; }
.notice-info { background: #DBEAFE; color: #1E40AF; }
.notice-warning { background: #FEF3C7; color: #92400E; }

/* ---- 空状态 ---- */
.empty-state { text-align: center; padding: var(--space-12) var(--space-4); color: var(--color-text-muted); }
.empty-state-icon { font-size: 48px; margin-bottom: var(--space-4); opacity: 0.5; }
.empty-state-text { font-size: 15px; margin: 0; }

/* ---- 响应式抽屉 (手机底部 sheet) ---- */
@media (max-width: 767px) {
  :root { --container-pad: var(--space-3); }
  .header-inner { gap: var(--space-3); }
  .brand-wordmark { font-size: 1.25rem; }
  .header-actions { gap: var(--space-3); }
  .service-items { gap: var(--space-3); }
  .category-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .category-visual-card,
  .category-visual-card img {
    min-height: 116px;
  }
  .product-drawer {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    max-height: 90vh;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    transform: translateY(100%);
  }
  .product-drawer.is-open { transform: translateY(0); }
  .sort-bar { flex-wrap: wrap; }
}