/* LUMIÈRE - 苹果极简风格电商 */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --bg-card: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted: #86868b;
  --border: #d2d2d7;
  --border-light: #e8e8ed;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-light: rgba(0,113,227,0.08);
  --success: #30d158;
  --warning: #ff9f0a;
  --danger: #ff3b30;
  --purple: #bf5af2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
  --transition: 0.3s cubic-bezier(0.25,0.1,0.25,1);
  --nav-height: 52px;
  --container: 1200px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ===== 导航栏 ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-height);
  background: rgba(255,255,255,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-light);
  display: flex; align-items: center; padding: 0 24px;
}

.nav-brand {
  font-size: 20px; font-weight: 700; color: var(--text);
  text-decoration: none; letter-spacing: 1px;
}

.nav-links {
  display: flex; list-style: none; gap: 32px; margin-left: auto;
}

.nav-links a {
  color: var(--text-secondary); text-decoration: none;
  font-size: 14px; font-weight: 500; transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

.nav-actions { display: flex; gap: 8px; margin-left: 24px; }

.nav-icon-btn {
  background: none; border: none; color: var(--text);
  font-size: 18px; cursor: pointer; position: relative;
  text-decoration: none; padding: 4px;
}

.cart-badge {
  position: absolute; top: -4px; right: -8px;
  background: var(--accent); color: #fff;
  font-size: 10px; font-weight: 700;
  min-width: 16px; height: 16px;
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
}

/* ===== 搜索 ===== */
.search-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  display: none; flex-direction: column; align-items: center;
  padding-top: 80px;
}
.search-overlay.active { display: flex; }

.search-container {
  width: 90%; max-width: 600px; position: relative;
}

.search-container input {
  width: 100%; padding: 14px 48px 14px 20px;
  border: none; border-radius: 12px;
  background: var(--bg-alt); font-size: 18px;
  color: var(--text); outline: none;
}
.search-container input:focus { background: #ebebed; }

.search-close {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; font-size: 20px; color: var(--text-muted); cursor: pointer;
}

.search-results { width: 90%; max-width: 600px; margin-top: 16px; }

.search-result-item {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 16px; border-radius: var(--radius-sm);
  text-decoration: none; color: var(--text); transition: background var(--transition);
}
.search-result-item:hover { background: var(--bg-alt); }
.search-result-item .result-icon { font-size: 28px; }
.search-result-item .result-name { font-weight: 500; }
.search-result-item .result-price { color: var(--text-secondary); font-size: 14px; }

/* ===== Hero ===== */
.hero {
  margin-top: var(--nav-height);
  height: 520px; position: relative; overflow: hidden;
}

.hero-slider {
  height: 100%; position: relative; touch-action: pan-y;
}

.hero-slide {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 12px;
  opacity: 0; transform: scale(1.02); transition: opacity 0.8s ease, transform 0.8s ease;
  background: linear-gradient(135deg, #f5f5f7 0%, #e8e8ed 100%);
}
.hero-slide.active { opacity: 1; transform: scale(1); }
.hero-slide.sliding-left { opacity: 0; transform: translateX(-40px); }
.hero-slide.sliding-right { opacity: 0; transform: translateX(40px); }

.hero-slide h1 {
  font-size: 56px; font-weight: 700; letter-spacing: -1px;
  opacity: 0; transform: translateY(20px); transition: opacity 0.6s 0.2s, transform 0.6s 0.2s;
}
.hero-slide.active h1 { opacity: 1; transform: translateY(0); }
.hero-slide p {
  font-size: 24px; color: var(--text-secondary);
  opacity: 0; transform: translateY(12px); transition: opacity 0.6s 0.35s, transform 0.6s 0.35s;
}
.hero-slide.active p { opacity: 1; transform: translateY(0); }
.hero-slide .hero-cta {
  margin-top: 12px;
  color: var(--accent); font-size: 18px; font-weight: 500;
  text-decoration: none; cursor: pointer;
  opacity: 0; transform: translateY(8px); transition: opacity 0.6s 0.5s, transform 0.6s 0.5s;
}
.hero-slide.active .hero-cta { opacity: 1; transform: translateY(0); }
.hero-slide .hero-cta:hover { text-decoration: underline; }

.hero-dots {
  position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px;
}
.hero-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border); cursor: pointer; border: none;
  transition: all var(--transition);
}
.hero-dot.active { background: var(--text); width: 24px; border-radius: 4px; }

.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.7); backdrop-filter: blur(10px);
  border: 1px solid var(--border-light); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: var(--text-secondary); z-index: 2;
  transition: all var(--transition); opacity: 0;
}
.hero:hover .hero-arrow { opacity: 1; }
.hero-arrow:hover { background: rgba(255,255,255,0.95); color: var(--text); }
.hero-arrow.prev { left: 20px; }
.hero-arrow.next { right: 20px; }

.hero-progress {
  position: absolute; bottom: 0; left: 0; height: 2px;
  background: var(--accent); transition: width 0.1s linear; z-index: 2;
}

/* ===== Section ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-brand { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%); }

.section-title {
  font-size: 36px; font-weight: 700; letter-spacing: -0.5px;
  margin-bottom: 40px; text-align: center;
}

/* ===== 分类 ===== */
.categories-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px;
}

.category-card {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 32px 20px; text-align: center;
  box-shadow: var(--shadow); cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  text-decoration: none; color: var(--text); position: relative; overflow: hidden;
}
.category-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: var(--accent); transform: scaleX(0); transition: transform var(--transition);
}
.category-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}
.category-card:hover::after { transform: scaleX(1); }
.category-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(0,113,227,0.04), transparent 70%);
  opacity: 0; transition: opacity var(--transition);
}
.category-card:hover::before { opacity: 1; }
.category-icon { font-size: 40px; margin-bottom: 12px; display: block; transition: transform var(--transition); }
.category-card:hover .category-icon { transform: scale(1.15); }
.category-name { font-size: 16px; font-weight: 600; }
.category-count { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* 分类页标签 */
.category-tabs {
  display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 8px;
}
.cat-tab {
  padding: 8px 20px; border-radius: 980px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text-secondary); cursor: pointer;
  font-size: 14px; font-weight: 500; transition: all var(--transition);
}
.cat-tab:hover { background: var(--bg-alt); color: var(--text); border-color: var(--border); }
.cat-tab.active { background: var(--text); color: #fff; border-color: var(--text); }

.category-result-info {
  text-align: center; color: var(--text-muted); font-size: 14px; margin-top: 12px; margin-bottom: 8px;
}

/* ===== 商品卡片 ===== */
.products-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-card); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: pointer; text-decoration: none; color: var(--text);
}
.product-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-lg);
}

.product-image {
  height: 240px; background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center;
  font-size: 56px; position: relative;
}

.product-badge {
  position: absolute; top: 12px; left: 12px;
  background: var(--danger); color: #fff;
  padding: 3px 10px; border-radius: 8px;
  font-size: 12px; font-weight: 600;
}

.product-body { padding: 16px 20px 20px; }
.product-name { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.product-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 10px; line-height: 1.4; }
.product-rating { font-size: 12px; color: var(--warning); margin-bottom: 8px; }
.product-rating span { color: var(--text-muted); margin-left: 4px; }

.product-price-row {
  display: flex; align-items: baseline; gap: 8px;
}
.product-price { font-size: 20px; font-weight: 700; color: var(--text); }
.product-original-price { font-size: 14px; color: var(--text-muted); text-decoration: line-through; }

/* ===== 品牌理念 ===== */
.brand-values {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px;
  text-align: center;
}
.value-icon { font-size: 48px; display: block; margin-bottom: 16px; }
.brand-value h3 { font-size: 22px; font-weight: 600; margin-bottom: 8px; }
.brand-value p { color: var(--text-secondary); font-size: 15px; }

/* ===== 商品详情 ===== */
.product-detail { margin-top: var(--nav-height); padding-top: 40px; }

.product-detail-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start;
}

.product-gallery {
  position: sticky; top: 92px;
}

.gallery-placeholder {
  width: 100%; aspect-ratio: 1; background: var(--bg-alt);
  border-radius: var(--radius); display: flex; align-items: center;
  justify-content: center; font-size: 120px;
}

.product-info h1 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.product-info .price-row { margin-bottom: 20px; }
.product-info .current-price { font-size: 28px; font-weight: 700; color: var(--accent); }
.product-info .original-price { font-size: 18px; color: var(--text-muted); text-decoration: line-through; margin-left: 8px; }

.product-info .rating-row {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 20px; font-size: 14px; color: var(--text-secondary);
}

.product-info .desc { color: var(--text-secondary); font-size: 16px; line-height: 1.6; margin-bottom: 24px; }

.specs-list {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px;
}
.spec-tag {
  padding: 6px 14px; background: var(--bg-alt); border-radius: 20px;
  font-size: 13px; color: var(--text-secondary);
}

.qty-selector {
  display: flex; align-items: center; gap: 0; margin-bottom: 24px;
}
.qty-btn {
  width: 36px; height: 36px; border: 1px solid var(--border);
  background: var(--bg); cursor: pointer; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
}
.qty-btn:first-child { border-radius: 8px 0 0 8px; }
.qty-btn:last-child { border-radius: 0 8px 8px 0; }
.qty-value {
  width: 48px; height: 36px; border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border); display: flex;
  align-items: center; justify-content: center; font-weight: 600;
}

.action-buttons { display: flex; gap: 12px; }

.btn {
  padding: 12px 24px; border-radius: 980px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); cursor: pointer;
  font-size: 15px; font-weight: 500; transition: all var(--transition);
  text-decoration: none; display: inline-flex; align-items: center;
}
.btn:hover { background: var(--bg-alt); }

.btn-primary {
  background: var(--accent); color: #fff; border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-large { padding: 14px 32px; font-size: 16px; }

.btn-outline {
  background: transparent; color: var(--accent); border-color: var(--accent);
}
.btn-outline:hover { background: var(--accent-light); }

.product-detail-content {
  margin-top: 48px; padding-top: 32px; border-top: 1px solid var(--border-light);
}
.product-detail-content h2 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.product-detail-content h3 { font-size: 20px; font-weight: 600; margin: 20px 0 10px; }
.product-detail-content p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 12px; }

/* ===== 购物车 ===== */
.cart-layout {
  display: grid; grid-template-columns: 1fr 340px; gap: 32px; align-items: start;
}

.cart-empty {
  text-align: center; padding: 60px 0;
}
.empty-icon { font-size: 64px; display: block; margin-bottom: 16px; }
.cart-empty p { color: var(--text-secondary); font-size: 18px; margin-bottom: 20px; }

.cart-item {
  display: flex; align-items: center; gap: 20px;
  padding: 20px 0; border-bottom: 1px solid var(--border-light);
}
.cart-item-image {
  width: 80px; height: 80px; background: var(--bg-alt);
  border-radius: var(--radius-sm); display: flex;
  align-items: center; justify-content: center; font-size: 32px; flex-shrink: 0;
}
.cart-item-info { flex: 1; }
.cart-item-name { font-weight: 600; margin-bottom: 4px; }
.cart-item-price { color: var(--text-secondary); font-size: 14px; }
.cart-item-qty { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.cart-item-qty button {
  width: 28px; height: 28px; border-radius: 14px;
  border: 1px solid var(--border); background: var(--bg);
  cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}
.cart-item-qty span { min-width: 24px; text-align: center; font-weight: 600; }
.cart-item-total { font-weight: 700; font-size: 16px; white-space: nowrap; }
.cart-item-remove {
  background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 18px; padding: 4px;
}
.cart-item-remove:hover { color: var(--danger); }

.cart-summary {
  background: var(--bg-alt); border-radius: var(--radius); padding: 24px;
  position: sticky; top: 92px;
}
.cart-summary h3 { font-size: 18px; font-weight: 600; margin-bottom: 16px; }
.summary-row {
  display: flex; justify-content: space-between;
  margin-bottom: 12px; font-size: 15px;
}
.summary-row.total {
  font-weight: 700; font-size: 18px;
  border-top: 1px solid var(--border); padding-top: 12px; margin-top: 12px;
}
.cart-summary .btn-primary { width: 100%; justify-content: center; margin-top: 16px; }

/* ===== 支付弹窗 ===== */
.payment-overlay {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(0,0,0,0.4); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all 0.3s;
}
.payment-overlay.active { opacity: 1; visibility: visible; }

.payment-modal {
  background: #fff; border-radius: 20px; width: 400px; max-width: 90vw;
  padding: 32px; box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  transform: translateY(20px); transition: transform 0.3s;
}
.payment-overlay.active .payment-modal { transform: translateY(0); }

.payment-modal h3 { font-size: 20px; font-weight: 700; text-align: center; margin-bottom: 8px; }
.payment-amount { text-align: center; font-size: 36px; font-weight: 700; color: var(--text); margin-bottom: 24px; }
.payment-amount span { font-size: 16px; font-weight: 400; }

.payment-methods { display: flex; gap: 12px; margin-bottom: 24px; }
.payment-method {
  flex: 1; padding: 16px 12px; border: 2px solid var(--border-light); border-radius: 14px;
  cursor: pointer; text-align: center; transition: all var(--transition);
  background: var(--bg);
}
.payment-method:hover { border-color: var(--border); }
.payment-method.selected { border-color: var(--accent); background: var(--accent-light); }
.payment-method .pm-icon { font-size: 28px; display: block; margin-bottom: 6px; }
.payment-method .pm-name { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.payment-method.selected .pm-name { color: var(--accent); }

.payment-actions { display: flex; gap: 12px; }
.payment-actions .btn { flex: 1; justify-content: center; padding: 14px 24px; }

.payment-processing {
  text-align: center; padding: 24px 0;
}
.payment-spinner {
  width: 40px; height: 40px; border: 3px solid var(--border-light);
  border-top-color: var(--accent); border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 0 auto 16px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.payment-result {
  text-align: center; padding: 16px 0;
}
.payment-result .result-icon { font-size: 56px; display: block; margin-bottom: 12px; }
.payment-result .result-title { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.payment-result .result-desc { color: var(--text-secondary); font-size: 14px; margin-bottom: 20px; }

/* ===== 个人中心 ===== */
.profile-layout {
  display: grid; grid-template-columns: 240px 1fr; gap: 32px;
  margin-top: calc(var(--nav-height) + 24px);
}

.profile-sidebar { position: sticky; top: 92px; align-self: start; }

.profile-card {
  background: var(--bg-alt); border-radius: var(--radius); padding: 24px;
  text-align: center; margin-bottom: 16px;
}
.profile-avatar {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--bg); display: flex; align-items: center;
  justify-content: center; font-size: 28px; margin: 0 auto 12px;
}
.profile-card h3 { font-size: 16px; font-weight: 600; }
.profile-card p { font-size: 13px; color: var(--text-secondary); }

.profile-nav { display: flex; flex-direction: column; gap: 4px; }

.profile-nav-item {
  padding: 10px 16px; border-radius: var(--radius-sm);
  color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 500;
  transition: all var(--transition);
}
.profile-nav-item:hover { background: var(--bg-alt); color: var(--text); }
.profile-nav-item.active { background: var(--accent-light); color: var(--accent); }

.profile-content { min-height: 400px; }

.order-card {
  background: var(--bg-card); border: 1px solid var(--border-light);
  border-radius: var(--radius); padding: 20px; margin-bottom: 16px;
}
.order-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border-light);
}
.order-id { font-weight: 600; font-size: 14px; }
.order-time { font-size: 13px; color: var(--text-muted); }
.order-status { font-size: 13px; font-weight: 600; padding: 3px 10px; border-radius: 12px; }
.order-status.completed { background: rgba(48,209,88,0.12); color: var(--success); }
.order-status.shipped { background: rgba(0,113,227,0.1); color: var(--accent); }
.order-status.pending { background: rgba(255,159,10,0.12); color: var(--warning); }
.order-items { margin-bottom: 12px; }
.order-item { display: flex; justify-content: space-between; padding: 4px 0; font-size: 14px; }
.order-item-name { color: var(--text-secondary); }
.order-footer { display: flex; justify-content: flex-end; align-items: center; gap: 12px; }
.order-total { font-weight: 700; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-alt); padding: 48px 0 24px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px;
  margin-bottom: 32px;
}
.footer-brand span { font-size: 18px; font-weight: 700; }
.footer-brand p { color: var(--text-secondary); font-size: 14px; margin-top: 6px; }
.footer-links h4 { font-size: 13px; font-weight: 600; margin-bottom: 10px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.footer-links a { display: block; color: var(--text-secondary); text-decoration: none; font-size: 14px; margin-bottom: 6px; }
.footer-links a:hover { color: var(--text); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; text-align: center; color: var(--text-muted); font-size: 13px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
  .product-detail-grid { grid-template-columns: 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { height: 360px; }
  .hero-slide h1 { font-size: 32px; }
  .hero-slide p { font-size: 16px; }
  .hero-arrow { display: none; }
  .payment-methods { flex-direction: column; }
  .section { padding: 48px 0; }
  .section-title { font-size: 28px; }
  .categories-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-values { grid-template-columns: 1fr; gap: 24px; }
  .profile-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}