/* ============================================================
   简.奥莉维亚 Jane.Olivia — 女装 & 配饰商城
   设计基调: 简约时尚 · 米色暖调 (COS风格)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400&family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

/* === CSS Variables — 米色暖调主题 === */
:root {
  /* 颜色系统 */
  --color-bg:            #FAF7F2;
  --color-bg-alt:        #F3EFE9;
  --color-surface:       #FFFFFF;
  --color-text:          #2C2C2C;
  --color-text-secondary:#6B6560;
  --color-text-muted:    #9C9690;
  --color-primary:       #C4B59A;
  --color-primary-hover: #B0A084;
  --color-primary-light: #E8DFD2;
  --color-accent:        #8B7355;
  --color-accent-hover:  #725E45;
  --color-border:        #E5E0D8;
  --color-border-light:  #F0EBE3;
  --color-success:       #7A9E7E;
  --color-error:         #C47B7B;
  --color-heart:         #D4A0A0;
  --color-star:          #D4B896;

  /* 排版 */
  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs:  0.75rem;
  --font-size-sm:  0.875rem;
  --font-size-base:1rem;
  --font-size-lg:  1.125rem;
  --font-size-xl:  1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  /* 间距 */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* 边框 */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;

  /* 阴影 */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.08);

  /* 布局 */
  --max-width:  1400px;
  --header-height: 72px;
  --nav-height: 40px;

  /* 动画 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* === Reset & Base === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  font-size: inherit;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }

/* === Layout === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.main-content {
  flex: 1;
  margin-top: var(--header-height);
}

.section {
  padding: var(--space-4xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title h2 {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.section-title p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  font-weight: 300;
}

.section-title .divider {
  width: 40px;
  height: 2px;
  background: var(--color-primary);
  margin: var(--space-md) auto 0;
}

/* === Header / Navigation === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex: 1;
}

.header-right {
  justify-content: flex-end;
}

/* Logo */
.logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.logo .zh {
  font-weight: 500;
}

.logo .en {
  font-weight: 300;
  font-style: italic;
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-left: var(--space-xs);
}

/* Nav Links */
.nav-links {
  display: flex;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-text);
  transition: width var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Header Icons */
.header-icons {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.icon-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast);
}

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

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: var(--color-accent);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge:empty {
  display: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  height: 20px;
  cursor: pointer;
  padding: 0;
  background: none;
  border: none;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* === Footer === */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border-light);
  margin-top: auto;
}

.footer-main {
  padding: var(--space-4xl) 0 var(--space-2xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-3xl);
}

.footer-brand h3 {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-text);
}

.newsletter-form {
  display: flex;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.newsletter-form input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
  border-color: var(--color-primary);
}

.newsletter-form button {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: var(--color-accent);
}

.footer-bottom {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.footer-bottom .payment-icons {
  display: flex;
  gap: var(--space-sm);
  font-size: var(--font-size-xs);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.03em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  border: 1.5px solid transparent;
  min-height: 44px;
}

.btn-primary {
  background: var(--color-text);
  color: #fff;
}

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

.btn-outline {
  background: transparent;
  border-color: var(--color-text);
  color: var(--color-text);
}

.btn-outline:hover {
  background: var(--color-text);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  color: var(--color-text);
  background: var(--color-border-light);
}

.btn-large {
  padding: var(--space-md) var(--space-2xl);
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* === Product Card === */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.product-card {
  position: relative;
  background: var(--color-surface);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.product-card .product-image {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-border-light);
}

.product-card .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-card .product-actions {
  position: absolute;
  bottom: var(--space-md);
  right: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition-base);
}

.product-card:hover .product-actions {
  opacity: 1;
  transform: translateY(0);
}

.product-card .product-actions button {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.product-card .product-actions button:hover {
  background: var(--color-text);
  color: #fff;
}

.product-card .product-actions button.wishlisted {
  background: var(--color-heart);
  color: #fff;
}

.product-card .product-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  padding: var(--space-xs) var(--space-sm);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #fff;
  border-radius: 2px;
}

.badge-new { background: var(--color-accent); }
.badge-sale { background: var(--color-error); }
.badge-soldout { background: var(--color-text-muted); }

.product-info {
  padding: var(--space-md);
}

.product-info .brand {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.product-info h3 {
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  font-weight: 400;
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.product-info .price {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.product-info .price .current {
  font-weight: 600;
  font-size: var(--font-size-base);
  color: var(--color-text);
}

.product-info .price .original {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.product-info .colors {
  display: flex;
  gap: 4px;
  margin-top: var(--space-sm);
}

.product-info .color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
}

/* === Forms === */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition-fast);
  min-height: 44px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 480px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(16px);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal h3 {
  margin-bottom: var(--space-xl);
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
}

/* === Breadcrumb === */
.breadcrumb {
  padding: var(--space-lg) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-text);
}

.breadcrumb span {
  margin: 0 var(--space-sm);
}

/* === Pagination === */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-3xl) 0;
}

.pagination button {
  min-width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.pagination button:hover {
  border-color: var(--color-text);
}

.pagination button.active {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

.pagination button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* === Toast === */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: var(--color-text);
  color: #fff;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  max-width: 360px;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(40px); }
}

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
}

.empty-state svg {
  width: 80px;
  height: 80px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.empty-state h3 {
  font-family: var(--font-body);
  font-size: var(--font-size-lg);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.empty-state p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

/* === Utility === */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--space-md); }
.mt-2 { margin-top: var(--space-lg); }
.mt-3 { margin-top: var(--space-xl); }
.mt-4 { margin-top: var(--space-2xl); }
.mb-1 { margin-bottom: var(--space-md); }
.mb-2 { margin-bottom: var(--space-lg); }
.mb-3 { margin-bottom: var(--space-xl); }
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* === Responsive === */
@media (max-width: 1200px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.5rem;
  }

  .container { padding: 0 var(--space-md); }
  .header-inner { padding: 0 var(--space-md); }
  .section { padding: var(--space-2xl) 0; }

  .mobile-menu-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: var(--font-size-lg);
  }

  .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-sm); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
}