/* ============================================================
   TajGo — 商业级商城前端样式 v3
   精致排版 | 细腻阴影层次 | 克制的动效 | SVG图标体系
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

:root {
  --color-primary: #2554e8;
  --color-primary-dark: #1a3fc4;
  --color-primary-light: #eaf0ff;
  --color-ink: #0b1220;
  --color-accent: #ee7b1a;
  --color-accent-light: #fef3e8;
  --color-danger: #e5484d;
  --color-success: #17a673;
  --color-text: #1c2333;
  --color-text-muted: #6b7688;
  --color-text-faint: #9aa3b2;
  --color-bg: #f6f7fb;
  --color-card-bg: #ffffff;
  --color-border: #e7e9f1;
  --color-border-soft: #f0f1f6;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 6px rgba(20, 24, 48, 0.06), 0 1px 2px rgba(20,24,48,0.04);
  --shadow-md: 0 10px 28px rgba(20, 24, 48, 0.08), 0 2px 8px rgba(20,24,48,0.04);
  --shadow-lg: 0 20px 48px rgba(20, 24, 48, 0.14), 0 4px 14px rgba(20,24,48,0.06);
  --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'Manrope', 'Noto Sans SC', -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.01em;
}

a { text-decoration: none; color: inherit; }
::selection { background: var(--color-primary-light); color: var(--color-primary-dark); }

/* 通用SVG图标基线对齐 */
.icon { display: inline-flex; vertical-align: middle; flex-shrink: 0; }
.icon svg { width: 1em; height: 1em; }

/* ---------------- Header ---------------- */
.site-header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: var(--shadow-xs);
  border-bottom: 1px solid var(--color-border-soft);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-top {
  background: var(--color-ink);
  color: #a8b1c7;
  font-size: 12.5px;
  font-weight: 500;
  padding: 8px 0;
  letter-spacing: 0.01em;
}
.header-top .contact-item { display: inline-flex; align-items: center; gap: 6px; }

.header-main {
  padding: 18px 0;
}

.logo {
  font-size: 25px;
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.03em;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}
.logo span { color: #f59e0b; }

.nav-menu {
  display: flex;
  gap: 30px;
  align-items: center;
}
.nav-menu a {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--color-text);
  transition: var(--transition);
  position: relative;
  padding: 6px 0;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: var(--transition);
  border-radius: 2px;
}
.nav-menu a:hover { color: var(--color-primary); }
.nav-menu a:hover::after { transform: scaleX(1); }

.search-box {
  position: relative;
  flex: 1;
  max-width: 460px;
}
.search-box input {
  width: 100%;
  padding: 11px 46px 11px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--color-border);
  font-size: 14px;
  font-family: inherit;
  background: #fafbfd;
  transition: var(--transition);
}
.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 4px var(--color-primary-light);
}
.search-box button {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-primary);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.search-box button:hover { background: var(--color-primary-dark); transform: translateY(-50%) scale(1.05); }

.header-icons { display: flex; gap: 10px; align-items: center; }
.icon-btn {
  position: relative;
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: transparent;
  color: var(--color-text);
  transition: var(--transition);
  cursor: pointer;
  font-size: 19px;
}
.icon-btn:hover { background: var(--color-primary-light); color: var(--color-primary); }
.badge-count {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--color-danger);
  color: #fff;
  font-size: 10.5px;
  font-weight: 800;
  min-width: 17px; height: 17px;
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  padding: 0 4px;
  box-shadow: 0 0 0 2px #fff;
}

.lang-switch { display: flex; gap: 2px; align-items: center; }
.lang-switch a {
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: #a8b1c7;
  transition: var(--transition);
  letter-spacing: 0.02em;
}
.lang-switch a:hover { color: #fff; }
.lang-switch a.active { background: rgba(255,255,255,0.14); color: #fff; }

/* ---------------- Banner ---------------- */
.banner {
  background: linear-gradient(120deg, #16214a 0%, #1a3fc4 55%, #2554e8 100%);
  border-radius: var(--radius-lg);
  padding: 64px 52px;
  color: #fff;
  margin: 32px 0;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.banner::before {
  content: '';
  position: absolute;
  right: -80px; top: -100px;
  width: 340px; height: 340px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
}
.banner::after {
  content: '';
  position: absolute;
  left: 10%; bottom: -140px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(238,123,26,0.18) 0%, transparent 70%);
  border-radius: 50%;
}
.banner h1 { font-size: 40px; font-weight: 800; margin-bottom: 14px; max-width: 580px; letter-spacing: -0.02em; position: relative; }
.banner p { font-size: 16.5px; opacity: 0.82; max-width: 520px; margin-bottom: 26px; position: relative; }
.banner .btn-cta {
  background: #fff;
  color: var(--color-primary-dark);
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14.5px;
  display: inline-block;
  transition: var(--transition);
  box-shadow: 0 8px 20px rgba(0,0,0,0.18);
  position: relative;
}
.banner .btn-cta:hover { transform: translateY(-3px); box-shadow: 0 14px 30px rgba(0,0,0,0.24); }

/* ---------------- Section Titles ---------------- */
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 48px 0 22px;
}
.section-title h2 {
  font-size: 23px;
  font-weight: 800;
  position: relative;
  padding-left: 18px;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
.section-title h2::before {
  content: '';
  position: absolute;
  left: 0; top: 3px; bottom: 3px;
  width: 5px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
  border-radius: 4px;
}
.section-title .view-all {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 13.5px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.section-title .view-all:hover { gap: 8px; }

/* ---------------- Product Card ---------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-soft);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.product-card .img-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: linear-gradient(135deg, #f4f5fa, #eef0f7);
}
.product-card .img-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover .img-wrap img { transform: scale(1.07); }

.product-card .fav-btn {
  position: absolute;
  top: 10px; right: 10px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.95);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  z-index: 2;
  border: none;
  font-size: 15px;
  color: var(--color-text-muted);
}
.product-card .fav-btn:hover { background: #fff; transform: scale(1.1); color: var(--color-danger); }
.product-card .fav-btn.active { color: var(--color-danger); background: #fff; }
.product-card .fav-btn.active svg { fill: var(--color-danger); }

/* ---------------- 独立收藏按钮 (商品详情页 / 收藏列表页 通用) ---------------- */
.fav-btn-standalone {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: #fff;
  border: 1.5px solid var(--color-border);
  display: inline-flex;
  align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--color-text-muted);
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
  padding: 0;
}
.fav-btn-standalone svg { width: 20px; height: 20px; display: block; }
.fav-btn-standalone:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
  background: #fff5f5;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.fav-btn-standalone.active {
  border-color: var(--color-danger);
  color: var(--color-danger);
  background: #fff0f0;
}
.fav-btn-standalone.active svg { fill: var(--color-danger); }
.fav-btn-standalone.pulse { animation: favPulse 0.35s ease; }
@keyframes favPulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.22); }
  100% { transform: scale(1); }
}

.product-card .badge-new {
  position: absolute;
  top: 10px; left: 10px;
  background: var(--color-accent);
  color: #fff;
  font-size: 10.5px;
  font-weight: 800;
  padding: 5px 11px;
  border-radius: 999px;
  z-index: 2;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 10px rgba(238,123,26,0.3);
}

.product-card .card-body {
  padding: 16px 16px 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-card .p-name {
  font-size: 14.5px;
  font-weight: 700;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 40px;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}
.product-card .p-meta {
  font-size: 12px;
  color: var(--color-text-faint);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  font-weight: 500;
}
.product-card .p-stock { color: var(--color-success); font-weight: 700; }
.product-card .p-price { font-size: 16px; font-weight: 800; color: var(--color-primary); margin-bottom: 10px; }
.product-card .p-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}
.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 8px;
  font-weight: 700;
  font-size: 12.5px;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: inherit;
}
.p-actions .btn { min-width: 0; }
.btn-primary { background: var(--color-primary); color: #fff; flex: 1; min-width: 0; box-shadow: 0 2px 8px rgba(37,84,232,0.25); }
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: 0 4px 12px rgba(37,84,232,0.35); }
.btn-outline { background: #fff; border: 1.5px solid var(--color-border); color: var(--color-text); flex: 1; min-width: 0; }
.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-light); }
.btn-accent { background: var(--color-accent); color: #fff; }
.btn-accent:hover { filter: brightness(0.94); }

/* ---------------- Categories ---------------- */
.category-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.category-chip {
  padding: 10px 20px;
  border-radius: 999px;
  background: #fff;
  border: 1.5px solid var(--color-border);
  font-weight: 600;
  font-size: 13.5px;
  transition: var(--transition);
  cursor: pointer;
  color: var(--color-text);
}
.category-chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.category-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37,84,232,0.28);
}

/* ---------------- Announcements ---------------- */
.announcement-bar {
  background: var(--color-accent-light);
  border: 1px solid #fadfb8;
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin: 24px 0;
}
.announcement-bar h3 { font-size: 14.5px; color: #9a5a12; margin-bottom: 10px; font-weight: 800; display: flex; align-items: center; gap: 8px; }
.announcement-item { font-size: 13.5px; color: #7c4a13; padding: 5px 0; line-height: 1.6; }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--color-ink);
  color: #8790a6;
  padding: 56px 0 26px;
  margin-top: 64px;
}
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 800; letter-spacing: -0.01em; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 11px; font-size: 13.5px; }
.site-footer a { transition: var(--transition); }
.site-footer a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 36px;
  padding-top: 22px;
  font-size: 12.5px;
  text-align: center;
  color: #626d85;
}

/* ---------------- Product Detail ---------------- */
.product-detail-wrap {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
  margin: 32px 0;
  border: 1px solid var(--color-border-soft);
}
.product-gallery .main-image {
  aspect-ratio: 1/1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, #f4f5fa, #eef0f7);
  margin-bottom: 16px;
}
.product-gallery .main-image img { width: 100%; height: 100%; object-fit: cover; }
.thumb-list { display: flex; gap: 10px; flex-wrap: wrap; }
.thumb-list img {
  width: 72px; height: 72px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  opacity: 0.7;
}
.thumb-list img:hover { opacity: 1; }
.thumb-list img.active { border-color: var(--color-primary); opacity: 1; }

.product-info h1 { font-size: 27px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; color: var(--color-ink); }
.product-info .sku { color: var(--color-text-faint); font-size: 13.5px; margin-bottom: 18px; font-weight: 500; }
.product-info .stock-badge {
  display: flex;
  width: fit-content;
  align-items: center;
  gap: 6px;
  background: #e7f8f1;
  color: var(--color-success);
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  margin-bottom: 12px;
}
.product-info .price-badge { display: block; font-size: 24px; font-weight: 800; color: var(--color-primary); margin: 0 0 18px; }
.product-info .description { color: var(--color-text-muted); margin-bottom: 26px; line-height: 1.85; font-size: 14.5px; }

.tabs { border-bottom: 2px solid var(--color-border-soft); display: flex; gap: 32px; margin: 44px 0 26px; }
.tabs button {
  background: none; border: none;
  padding: 12px 0;
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text-faint);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: var(--transition);
  font-family: inherit;
}
.tabs button.active { color: var(--color-primary); border-color: var(--color-primary); }

.params-table { width: 100%; border-collapse: collapse; }
.params-table tr { border-bottom: 1px solid var(--color-border-soft); }
.params-table td { padding: 13px 8px; font-size: 14px; }
.params-table td:first-child { color: var(--color-text-faint); width: 220px; font-weight: 600; }

/* ---------------- Modal (Reservation Form) ---------------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(11,18,32,0.6);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center; justify-content: center;
  z-index: 2000;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal-box {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 34px;
  max-width: 460px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(0.96); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.modal-box h3 { font-size: 20px; font-weight: 800; margin-bottom: 22px; letter-spacing: -0.01em; }
.form-group { margin-bottom: 17px; }
.form-group label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 7px; color: var(--color-text-muted); }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  transition: var(--transition);
  background: #fafbfd;
}
.form-group input:focus, .form-group textarea:focus {
  outline: none; border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 4px var(--color-primary-light);
}
.modal-close {
  position: absolute; top: 20px; right: 20px;
  cursor: pointer; font-size: 22px; color: var(--color-text-faint);
  background: none; border: none;
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }
.modal-box { position: relative; }

.toast {
  position: fixed; bottom: 26px; right: 26px;
  background: var(--color-ink);
  color: #fff;
  padding: 15px 24px;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  transform: translateY(24px);
  opacity: 0;
  transition: var(--transition);
  font-size: 14px;
  font-weight: 600;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--color-success); }
.toast.error { background: var(--color-danger); }

/* ---------------- Pagination ---------------- */
.pagination { display: flex; gap: 8px; justify-content: center; margin: 44px 0; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: #fff;
  border: 1.5px solid var(--color-border);
  font-weight: 700;
  font-size: 14px;
  transition: var(--transition);
}
.pagination a:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination .active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); box-shadow: 0 4px 12px rgba(37,84,232,0.28); }

/* ---------------- Responsive ---------------- */
@media (max-width: 992px) {
  .nav-menu { display: none; }
  .banner h1 { font-size: 30px; }
  .banner { padding: 44px 26px; }
}
@media (max-width: 576px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .header-main .row { row-gap: 12px; }
  .product-detail-wrap { padding: 20px; }
  .banner h1 { font-size: 25px; }
}

.lazy-img { background: #f1f5f9; }
.skeleton {
  background: linear-gradient(90deg, #f1f2f7 25%, #e7e9f1 37%, #f1f2f7 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
}
@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}