/* ============================================================
   YUN-SHANG-HOME Design System
   严格复刻目标站设计语言
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&family=EB+Garamond:wght@300;400;500&display=swap');

:root {
  /* 颜色系统 */
  --surface: #fbf9f6;           /* 主背景 米白 */
  --surface-beige: #f2ece4;     /* 米色区块背景 */
  --charcoal: #2C2C2A;          /* 深炭灰 - 标题/深色文字 */
  --text-primary: #1b1c1a;      /* 主文字色 */
  --text-secondary: #464742;    /* 次文字色 - 导航/说明 */
  --text-muted: #7a7b76;        /* 弱文字色 */
  --birch-line: #D4B896;        /* 桦木色 - 边框线 0.5px */
  --birch: #D4B896;             /* 桦木色 - 别名，兼容旧引用 */
  --sage-accent: #8FA98C;       /* 鼠尾草绿 - 强调色 */
  --sage-light: #a8c0a5;        /* 浅绿 */
  --white: #ffffff;
  
  /* 字体 */
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'EB Garamond', Georgia, serif;
  
  /* 字号 */
  --fs-xs: 11px;
  --fs-sm: 12px;
  --fs-base: 14px;
  --fs-body: 16px;
  --fs-body-lg: 18px;
  --fs-subhead: 20px;
  --fs-title: 28px;
  --fs-headline: 48px;
  --fs-display: 64px;
  
  /* 间距 */
  --margin-mobile: 24px;
  --margin-desktop: 80px;
  --max-width: 1440px;
  
  /* 过渡 */
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  color: var(--sage-accent);
}

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

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

/* Material Icons */
.material-symbols-outlined {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 24px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   顶部公告栏
   ============================================================ */
.announcement-bar {
  background: var(--charcoal);
  color: var(--surface);
  text-align: center;
  padding: 10px 24px;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  font-family: var(--font-sans);
}

/* ============================================================
   Header 导航栏
   ============================================================ */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--margin-mobile);
  height: 70px;
  background: var(--surface);
  border-bottom: 0.5px solid var(--birch-line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header-left,
.site-header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

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

.nav-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: color var(--transition);
  padding: 8px;
}

.nav-menu-btn:hover {
  color: var(--sage-accent);
}

.site-brand {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: 22px;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.site-brand-lg {
  font-size: 24px;
}

.nav-desktop-only {
  display: none;
  align-items: center;
  gap: 16px;
}

.nav-link {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.nav-link:hover {
  color: var(--sage-accent);
}

.nav-lang-switcher {
  display: flex;
  align-items: center;
  border: 0.5px solid var(--birch-line);
  padding: 0;
}

.nav-lang-switcher button {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  padding: 4px 8px;
  opacity: 0.45;
  font-weight: 400;
  transition: all var(--transition);
}

.nav-lang-switcher button.active {
  opacity: 1;
  font-weight: 700;
}

.nav-lang-switcher span {
  color: var(--birch-line);
  line-height: 1;
  font-size: var(--fs-xs);
}

.cart-btn {
  position: relative;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  padding: 8px;
}

.cart-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--sage-accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.cart-badge:empty,
.cart-badge[data-count="0"] {
  display: none;
}

@media (min-width: 768px) {
  .site-header {
    height: 86px;
    padding: 0 var(--margin-desktop);
  }
  .site-brand-lg {
    font-size: 28px;
  }
  .nav-desktop-only {
    display: flex;
  }
  .nav-menu-btn {
    display: none;
  }
}

/* ============================================================
   移动端导航抽屉
   ============================================================ */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.mobile-nav-overlay.show {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  max-width: 80vw;
  height: 100vh;
  background: var(--surface);
  z-index: 201;
  transform: translateX(-100%);
  transition: transform var(--transition);
  overflow-y: auto;
}

.mobile-nav-drawer.open {
  transform: translateX(0);
}

.mobile-nav-header {
  padding: 24px;
  border-bottom: 0.5px solid var(--birch-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-nav-header span {
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.mobile-nav-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.mobile-nav-body a {
  font-size: var(--fs-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

/* ============================================================
   Hero 区
   ============================================================ */
.hero-section {
  position: relative;
  width: 100%;
  min-height: 500px;
  background: var(--surface-beige);
  border-bottom: 0.5px solid var(--birch-line);
  display: flex;
  align-items: center;
  padding: 60px var(--margin-mobile);
  overflow: hidden;
}

.hero-content {
  max-width: 600px;
  position: relative;
  z-index: 2;
}

.hero-tag {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage-accent);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  line-height: 1.2;
  color: var(--charcoal);
  margin-bottom: 24px;
}

.hero-desc {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--charcoal);
  color: #fff;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 14px 28px;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

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

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--charcoal);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 13px 28px;
  border: 0.5px solid var(--charcoal);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  background: var(--charcoal);
  color: #fff;
}

@media (min-width: 768px) {
  .hero-section {
    min-height: 600px;
    padding: 80px var(--margin-desktop);
  }
  .hero-title {
    font-size: var(--fs-headline);
  }
}

/* ============================================================
   区块通用样式
   ============================================================ */
.section {
  padding: 60px var(--margin-mobile);
  border-bottom: 0.5px solid var(--birch-line);
  background: var(--surface);
}

.section-beige {
  background: var(--surface-beige);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage-accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  color: var(--charcoal);
  line-height: 1.2;
}

.section-subtitle {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  margin-top: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .section {
    padding: 100px var(--margin-desktop);
  }
  .section-title {
    font-size: var(--fs-headline);
  }
}

/* ============================================================
   分类网格
   ============================================================ */
.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.category-card {
  position: relative;
  aspect-ratio: 4/3;
  background: var(--surface-beige);
  border: 0.5px solid var(--birch-line);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition);
}

.category-card:hover {
  transform: translateY(-4px);
}

.category-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--fs-subhead);
  color: var(--charcoal);
}

.category-card span {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-left: auto;
  align-self: flex-end;
}

@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .category-card {
    aspect-ratio: 3/4;
  }
}

/* ============================================================
   商品网格
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.product-card {
  background: var(--surface);
  border: 0.5px solid var(--birch-line);
  overflow: hidden;
  transition: all var(--transition);
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.product-image {
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface-beige);
  position: relative;
  overflow: hidden;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--sage-accent);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
}

.product-info {
  padding: 16px;
}

.product-category {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sage-accent);
  margin-bottom: 8px;
}

.product-name {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 12px;
  min-height: 42px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-price {
  font-family: var(--font-serif);
  font-size: var(--fs-subhead);
  color: var(--charcoal);
  font-weight: 500;
}

.cart-add-btn {
  background: var(--charcoal);
  color: #fff;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 7px 16px;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.cart-add-btn:hover {
  background: var(--sage-accent);
}

.view-all-btn {
  text-align: center;
  margin-top: 48px;
}

@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

/* ============================================================
   品牌故事 / About
   ============================================================ */
.about-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto;
  align-items: center;
}

.about-image {
  aspect-ratio: 4/3;
  background: var(--surface-beige);
  border: 0.5px solid var(--birch-line);
}

.about-content h2 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  color: var(--charcoal);
  line-height: 1.2;
  margin-bottom: 24px;
}

.about-content p {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .about-section {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
  }
  .about-content h2 {
    font-size: var(--fs-headline);
  }
}

/* ============================================================
   Trust Bar / 信任栏
   ============================================================ */
.trust-bar {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  background: var(--surface-beige);
  border-bottom: 0.5px solid var(--birch-line);
}

.trust-item {
  padding: 32px 24px;
  text-align: center;
  border-bottom: 0.5px solid var(--birch-line);
}

.trust-item:nth-child(odd) {
  border-right: 0.5px solid var(--birch-line);
}

.trust-item .icon {
  font-size: 32px;
  margin-bottom: 12px;
}

.trust-item h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 6px;
}

.trust-item p {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .trust-bar {
    grid-template-columns: repeat(4, 1fr);
  }
  .trust-item {
    border-bottom: none;
    border-right: 0.5px solid var(--birch-line);
    padding: 48px 32px;
  }
  .trust-item:last-child {
    border-right: none;
  }
  .trust-item:nth-child(odd) {
    border-right: 0.5px solid var(--birch-line);
  }
}

/* ============================================================
   Footer 页脚
   ============================================================ */
.footer {
  background: var(--charcoal);
  color: #eeeae4;
  padding: 60px var(--margin-mobile) 32px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 300;
  color: var(--surface-beige);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.footer-col h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--surface-beige);
  margin-bottom: 20px;
  font-weight: 500;
}

.footer-col p {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: #b8b5ae;
  line-height: 1.8;
}

.footer-col a {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: #b8b5ae;
  margin-bottom: 12px;
  transition: color var(--transition);
}

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

.footer-bottom {
  padding-top: 32px;
  border-top: 0.5px solid rgba(212, 184, 150, 0.2);
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: #7a7b76;
  line-height: 1.8;
}

@media (min-width: 768px) {
  .footer {
    padding: 80px var(--margin-desktop) 40px;
  }
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
  }
}

/* ============================================================
   面包屑
   ============================================================ */
.breadcrumb {
  padding: 20px var(--margin-mobile);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  border-bottom: 0.5px solid var(--birch-line);
}

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

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

.breadcrumb span {
  margin: 0 8px;
  color: var(--birch-line);
}

@media (min-width: 768px) {
  .breadcrumb {
    padding: 20px var(--margin-desktop);
  }
}

/* ============================================================
   表单组件
   ============================================================ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.field-input {
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--surface);
  border: 0.5px solid var(--birch-line);
  transition: border-color var(--transition);
  outline: none;
}

.field-input:focus {
  border-color: var(--sage-accent);
}

.field-input::placeholder {
  color: var(--text-muted);
}

/* ============================================================
   订单查询 / 物流查询 页面
   ============================================================ */
.query-page {
  padding: 60px var(--margin-mobile);
  min-height: calc(100vh - 200px);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.query-container {
  max-width: 560px;
  width: 100%;
  text-align: center;
}

.query-container h1 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  color: var(--charcoal);
  margin-bottom: 16px;
}

.query-container .subtitle {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

.query-form {
  display: flex;
  gap: 0;
  margin-bottom: 24px;
}

.query-form .field-input {
  flex: 1;
  border-right: none;
}

.query-form .btn-primary {
  border-radius: 0;
  padding: 14px 24px;
  white-space: nowrap;
}

.query-hint {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  margin-bottom: 32px;
}

.query-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 32px 0;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.query-divider::before,
.query-divider::after {
  content: '';
  flex: 1;
  height: 0.5px;
  background: var(--birch-line);
}

/* ============================================================
   物流时间线
   ============================================================ */
.timeline-section {
  max-width: 600px;
  margin: 40px auto 0;
  text-align: left;
}

.timeline-section h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: center;
}

.timeline {
  position: relative;
  padding: 0 0 0 32px;
}

.timeline-line {
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--birch-line);
}

.timeline-progress {
  position: absolute;
  left: 7px;
  top: 8px;
  width: 2px;
  background: var(--sage-accent);
  transition: height 0.5s ease;
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--birch-line);
  z-index: 1;
}

.timeline-item.completed .timeline-dot {
  background: var(--sage-accent);
  border-color: var(--sage-accent);
}

.timeline-item.current .timeline-dot {
  background: var(--sage-accent);
  border-color: var(--sage-accent);
  box-shadow: 0 0 0 4px rgba(143, 169, 140, 0.2);
}

.timeline-content h5 {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 4px;
}

.timeline-content p {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-muted);
}

.timeline-content .time {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  margin-top: 4px;
}

/* 物流支持的承运商 */
.carrier-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 32px;
}

.carrier-item {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border: 0.5px solid var(--birch-line);
  background: var(--surface);
}

.demo-numbers {
  margin-top: 32px;
  text-align: center;
}

.demo-numbers p {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.demo-numbers .demo-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.demo-numbers .demo-tag {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  color: var(--sage-accent);
  padding: 6px 12px;
  border: 0.5px solid var(--sage-accent);
  cursor: pointer;
  transition: all var(--transition);
}

.demo-numbers .demo-tag:hover {
  background: var(--sage-accent);
  color: #fff;
}

/* ============================================================
   购物车抽屉
   ============================================================ */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28,27,26,0.5);
  z-index: 9100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 100vw;
  height: 100vh;
  background: #fbf9f6;
  z-index: 9200;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 24px rgba(0,0,0,0.1);
}

.cart-drawer.open {
  transform: translateX(0);
}

.cart-header {
  padding: 24px;
  border-bottom: 0.5px solid var(--birch-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: var(--fs-subhead);
  color: var(--charcoal);
}

.cart-close-btn {
  font-size: 20px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition);
}

.cart-close-btn:hover {
  color: var(--sage-accent);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.cart-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.cart-item {
  display: flex;
  gap: 16px;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 0.5px solid var(--birch-line);
}

.cart-item-img {
  width: 80px;
  height: 80px;
  background: var(--surface-beige);
  flex-shrink: 0;
  border: 0.5px solid var(--birch-line);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 8px;
}

.cart-item-price {
  font-family: var(--font-serif);
  font-size: var(--fs-base);
  color: var(--charcoal);
  font-weight: 500;
  margin-bottom: 8px;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: 0;
}

.cart-item-qty button {
  width: 28px;
  height: 28px;
  border: 0.5px solid var(--birch-line);
  background: var(--surface);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.cart-item-qty button:hover {
  background: var(--surface-beige);
  color: var(--sage-accent);
}

.cart-item-qty span {
  width: 36px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 0.5px solid var(--birch-line);
  border-bottom: 0.5px solid var(--birch-line);
  font-size: var(--fs-sm);
}

.cart-item-remove {
  color: var(--text-muted);
  font-size: var(--fs-xs);
  cursor: pointer;
  transition: color var(--transition);
}

.cart-item-remove:hover {
  color: #c0392b;
}

.cart-footer {
  padding: 24px;
  border-top: 0.5px solid var(--birch-line);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.cart-total span:first-child {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.cart-total span:last-child {
  font-family: var(--font-serif);
  font-size: var(--fs-subhead);
  color: var(--charcoal);
  font-weight: 500;
}

.cart-checkout-btn {
  width: 100%;
  padding: 16px;
  background: var(--charcoal);
  color: #fff;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.cart-checkout-btn:hover {
  background: var(--sage-accent);
}

/* ============================================================
   登录/注册弹窗
   ============================================================ */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 400;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.auth-modal {
  background: var(--surface);
  width: 100%;
  max-width: 420px;
  padding: 40px 32px;
  position: relative;
  border: 0.5px solid var(--birch-line);
  transform: translateY(20px);
  transition: transform var(--transition);
}

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

.auth-close {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 20px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  transition: color var(--transition);
}

.auth-close:hover {
  color: var(--sage-accent);
}

.auth-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 32px;
  border-bottom: 0.5px solid var(--birch-line);
}

.auth-tab {
  flex: 1;
  padding: 12px 0;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: -0.5px;
}

.auth-tab.active {
  color: var(--charcoal);
  border-bottom-color: var(--sage-accent);
  font-weight: 500;
}

.auth-form h3 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  color: var(--charcoal);
  margin-bottom: 24px;
  text-align: center;
}

.auth-form .btn-primary {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  padding: 14px;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.auth-footer a {
  color: var(--sage-accent);
  font-weight: 500;
}

.auth-agree {
  font-size: var(--fs-xs);
  color: var(--text-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.6;
}

.auth-agree a {
  color: var(--sage-accent);
}

/* ============================================================
   商品列表页
   ============================================================ */
.product-list-section {
  padding: 40px var(--margin-mobile) 60px;
}

.product-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}

.product-list-header h2 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-title);
  color: var(--charcoal);
}

.product-filters {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.product-filters select {
  padding: 8px 12px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  background: var(--surface);
  border: 0.5px solid var(--birch-line);
  cursor: pointer;
}

.search-box {
  display: flex;
  gap: 0;
  max-width: 300px;
  width: 100%;
}

.search-box input {
  flex: 1;
  padding: 10px 14px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  border: 0.5px solid var(--birch-line);
  background: var(--surface);
  outline: none;
}

.search-box button {
  padding: 10px 16px;
  background: var(--charcoal);
  color: #fff;
  border: none;
  cursor: pointer;
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination button {
  width: 40px;
  height: 40px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  background: var(--surface);
  border: 0.5px solid var(--birch-line);
  cursor: pointer;
  transition: all var(--transition);
}

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

@media (min-width: 768px) {
  .product-list-section {
    padding: 60px var(--margin-desktop) 100px;
  }
  .product-list-header h2 {
    font-size: var(--fs-headline);
  }
}

/* ============================================================
   返回按钮
   ============================================================ */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-bottom: 32px;
  cursor: pointer;
  transition: color var(--transition);
}

.back-btn:hover {
  color: var(--sage-accent);
}

/* ============================================================
   订单详情卡片
   ============================================================ */
.order-card {
  background: var(--surface);
  border: 0.5px solid var(--birch-line);
  padding: 24px;
  margin-top: 32px;
  text-align: left;
}

.order-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 0.5px solid var(--birch-line);
  flex-wrap: wrap;
  gap: 12px;
}

.order-card-header h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.order-card-header .order-no {
  font-family: var(--font-serif);
  font-size: var(--fs-subhead);
  color: var(--charcoal);
}

.order-status {
  display: inline-block;
  padding: 6px 14px;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--sage-accent);
  color: #fff;
}

.order-status.pending {
  background: var(--birch-line);
  color: var(--charcoal);
}

.order-status.shipped {
  background: var(--sage-accent);
  color: #fff;
}

.order-status.delivered {
  background: var(--charcoal);
  color: #fff;
}

.order-goods {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
}

.order-goods-img {
  width: 80px;
  height: 80px;
  background: var(--surface-beige);
  flex-shrink: 0;
  border: 0.5px solid var(--birch-line);
}

.order-goods-info {
  flex: 1;
}

.order-goods-name {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  color: var(--text-primary);
  margin-bottom: 8px;
}

.order-goods-price {
  font-family: var(--font-serif);
  font-size: var(--fs-subhead);
  color: var(--charcoal);
  font-weight: 500;
}

.order-info-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: var(--fs-sm);
  border-bottom: 0.5px solid var(--birch-line);
}

.order-info-row:last-child {
  border-bottom: none;
}

.order-info-row span:first-child {
  color: var(--text-secondary);
}

.order-info-row span:last-child {
  color: var(--text-primary);
  font-weight: 500;
}

.order-total-row {
  display: flex;
  justify-content: space-between;
  padding: 16px 0 0;
  margin-top: 8px;
  border-top: 1px solid var(--birch-line);
}

.order-total-row span:first-child {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.order-total-row span:last-child {
  font-family: var(--font-serif);
  font-size: var(--fs-title);
  color: var(--charcoal);
  font-weight: 500;
}

/* ============================================================
   工具类
   ============================================================ */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }


/* ========================================
   结算页
   ======================================== */
.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}
.checkout-section {
    background: #fff;
    border: 0.5px solid var(--birch);
    padding: 30px;
    margin-bottom: 20px;
}
.checkout-section h3 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--charcoal);
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 0.5px solid var(--birch);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-group {
    margin-bottom: 16px;
}
.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.field-input {
    width: 100%;
    padding: 12px 16px;
    border: 0.5px solid var(--birch);
    background: #fff;
    font-size: 15px;
    color: var(--charcoal);
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.field-input:focus {
    border-color: var(--sage);
}
.checkout-summary {
    background: #fff;
    border: 0.5px solid var(--birch);
    padding: 30px;
    position: sticky;
    top: 100px;
    height: fit-content;
}
.checkout-summary h3 {
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 400;
    color: var(--charcoal);
    margin: 0 0 24px 0;
    padding-bottom: 16px;
    border-bottom: 0.5px solid var(--birch);
}
.summary-products {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 16px;
}
.summary-product {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 0.5px solid var(--birch-light);
}
.summary-product-img {
    width: 60px;
    height: 60px;
    background: var(--cream-dark);
    flex-shrink: 0;
}
.summary-product-info {
    flex: 1;
    min-width: 0;
}
.summary-product-name {
    font-size: 14px;
    color: var(--charcoal);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.summary-product-qty {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}
.summary-product-price {
    font-size: 15px;
    font-weight: 500;
    color: var(--charcoal);
}
.summary-divider {
    height: 0.5px;
    background: var(--birch);
    margin: 16px 0;
}
.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}
.summary-total {
    font-size: 18px;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: 0;
}

/* 支付方式选择 */
.payment-methods {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.payment-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border: 0.5px solid var(--birch);
    cursor: pointer;
    transition: all 0.2s;
}
.payment-option:hover {
    border-color: var(--sage);
}
.payment-option input[type="radio"] {
    accent-color: var(--sage);
}
.payment-icon {
    font-size: 20px;
}
.payment-name {
    font-size: 14px;
    color: var(--charcoal);
}

/* ========================================
   订单详情页
   ======================================== */
.tracking-form-card {
    max-width: 500px;
    margin: 0 auto 40px;
    background: #fff;
    border: 0.5px solid var(--birch);
    padding: 40px;
}
.tracking-form-group {
    margin-bottom: 20px;
}
.order-detail-card,
.tracking-detail-card {
    max-width: 700px;
    margin: 0 auto;
    background: #fff;
    border: 0.5px solid var(--birch);
    padding: 30px;
}
.order-detail-header,
.tracking-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 24px;
    border-bottom: 0.5px solid var(--birch);
    margin-bottom: 24px;
}
.order-detail-header h3,
.tracking-detail-header h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 400;
    margin: 0 0 8px 0;
    color: var(--charcoal);
}
.order-status-badge,
.tracking-status-badge {
    padding: 6px 16px;
    font-size: 13px;
    font-weight: 500;
    background: var(--sage);
    color: #fff;
}
.order-status-badge[data-status="0"] { background: #E8A838; }
.order-status-badge[data-status="-1"] { background: #999; }
.order-status-badge[data-status="2"] { background: #5B8FB9; }
.order-status-badge[data-status="3"] { background: var(--sage); }

.order-progress-section {
    margin-bottom: 30px;
}
.order-progress-section h4,
.order-products h4,
.order-tracking-section h4,
.timeline-section h4 {
    font-size: 16px;
    font-weight: 500;
    color: var(--charcoal);
    margin: 0 0 20px 0;
}
.order-progress {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    position: relative;
    padding: 0 10px;
}
.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
    z-index: 2;
}
.step-dot {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #E8E4DE;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}
.progress-step.done .step-dot {
    background: var(--sage);
    color: #fff;
}
.step-label {
    margin-top: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
}
.progress-step.done .step-label {
    color: var(--charcoal);
    font-weight: 500;
}
.progress-line {
    flex: 1;
    height: 2px;
    background: #E8E4DE;
    margin-top: 17px;
    z-index: 1;
}
.progress-line.done {
    background: var(--sage);
}

.order-product-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 0.5px solid var(--birch-light);
}
.order-product-img {
    width: 80px;
    height: 80px;
    background: var(--cream-dark);
    flex-shrink: 0;
}
.order-product-info {
    flex: 1;
}
.order-product-name {
    font-size: 15px;
    color: var(--charcoal);
    margin-bottom: 6px;
}
.order-product-qty {
    font-size: 13px;
    color: var(--text-secondary);
}
.order-product-price {
    font-size: 18px;
    font-weight: 500;
    color: var(--charcoal);
}

.order-info-grid {
    margin-top: 20px;
    padding: 20px;
    background: var(--cream);
}
.info-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
}
.info-item.total {
    padding-top: 16px;
    margin-top: 8px;
    border-top: 0.5px solid var(--birch);
    font-size: 18px;
    font-weight: 600;
    color: var(--charcoal);
}

.order-tracking-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 0.5px solid var(--birch);
}
.order-tracking-section p {
    margin: 6px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.order-not-found {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

/* ========================================
   物流时间线
   ======================================== */
.tracking-product {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--cream);
    margin-bottom: 24px;
}
.tracking-product-img {
    width: 70px;
    height: 70px;
    background: #fff;
    flex-shrink: 0;
}
.tracking-product-name {
    font-size: 15px;
    color: var(--charcoal);
    margin-bottom: 6px;
}
.tracking-product-order {
    font-size: 13px;
    color: var(--text-secondary);
}

.timeline {
    position: relative;
    padding-left: 30px;
}
.timeline::before {
    content: '';
    position: absolute;
    left: 9px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: #E8E4DE;
}
.timeline-item {
    position: relative;
    padding-bottom: 24px;
    opacity: 0.5;
}
.timeline-item.done {
    opacity: 1;
}
.timeline-item.current .timeline-title {
    color: var(--sage);
    font-weight: 600;
}
.timeline-dot {
    position: absolute;
    left: -26px;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #E8E4DE;
    border: 3px solid var(--cream);
    z-index: 2;
}
.timeline-item.done .timeline-dot {
    background: var(--sage);
}
.timeline-item.current .timeline-dot {
    background: var(--sage);
    box-shadow: 0 0 0 4px rgba(143, 169, 140, 0.2);
}
.timeline-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--charcoal);
    margin-bottom: 4px;
}
.timeline-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.timeline-time {
    font-size: 13px;
    color: #999;
}

/* 响应式 */
@media (max-width: 768px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .payment-methods {
        grid-template-columns: 1fr;
    }
    .order-detail-header,
    .tracking-detail-header {
        flex-direction: column;
        gap: 12px;
    }
    .order-progress {
        flex-wrap: wrap;
    }
    .progress-line {
        display: none;
    }
    .tracking-form-card,
    .order-detail-card,
    .tracking-detail-card {
        padding: 20px;
    }
}


/* ============================================
   Banner 轮播
   ============================================ */
.banner-section {
    position: relative;
    overflow: hidden;
    height: 500px;
}
.banner-slider {
    display: flex;
    height: 100%;
    transition: transform 0.6s ease;
}
.banner-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    cursor: pointer;
}
.banner-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.banner-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 2;
}
.banner-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.4), rgba(0,0,0,0.2));
}
.banner-tag {
    font-family: var(--font-serif);
    font-size: 48px;
    font-weight: 400;
    margin-bottom: 16px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}
.banner-desc {
    font-size: 18px;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto;
}
.banner-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}
.banner-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s;
}
.banner-dot.active {
    background: white;
    width: 30px;
    border-radius: 5px;
}
.banner-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    transition: background 0.3s;
}
.banner-arrow:hover { background: rgba(255,255,255,0.5); }
.banner-prev { left: 20px; }
.banner-next { right: 20px; }
.banner-arrow .material-symbols-outlined { color: white; font-size: 28px; }

/* ============================================
   分类卡片 - 带图
   ============================================ */
.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.category-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4/3;
}
.category-image {
    width: 100%;
    height: 100%;
}
.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.category-card:hover .category-image img {
    transform: scale(1.05);
}
.category-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}
.category-info h3 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 400;
}
.category-info span {
    font-size: 24px;
    transition: transform 0.3s;
}
.category-card:hover .category-info span {
    transform: translateX(5px);
}

/* ============================================
   商品卡片
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}
.product-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: var(--beige);
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card:hover .product-image img {
    transform: scale(1.05);
}
.product-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    font-size: 12px;
    border-radius: 20px;
    z-index: 2;
}
.new-tag {
    background: var(--sage);
    color: white;
}
.sale-tag {
    background: #d64545;
    color: white;
}
.product-cart-btn {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s;
    z-index: 2;
}
.product-card:hover .product-cart-btn {
    opacity: 1;
    transform: translateY(0);
}
.product-cart-btn:hover {
    background: var(--sage);
    color: white;
}
.product-cart-btn .material-symbols-outlined {
    font-size: 20px;
}
.product-info {
    padding: 16px;
}
.product-title {
    font-size: 14px;
    color: var(--charcoal);
    font-weight: 500;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 40px;
}
.product-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}
.price-current {
    font-size: 18px;
    font-weight: 600;
    color: var(--charcoal);
}
.price-original {
    font-size: 13px;
    color: #999;
    text-decoration: line-through;
}

/* ============================================
   语言下拉
   ============================================ */
.nav-lang-switcher {
    position: relative;
    display: inline-block;
}
.lang-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--birch);
    border-radius: 20px;
    cursor: pointer;
    font-size: 13px;
    color: var(--charcoal);
    transition: all 0.3s;
}
.lang-dropdown-btn:hover {
    border-color: var(--sage);
    color: var(--sage);
}
.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    padding: 8px 0;
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    z-index: 100;
}
.lang-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.lang-option {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    color: var(--charcoal);
    transition: background 0.2s;
}
.lang-option:hover {
    background: var(--beige);
    color: var(--sage);
}

/* ============================================
   登录注册弹窗
   ============================================ */
.auth-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}
.auth-modal-overlay.open {
    opacity: 1;
    visibility: visible;
}
.auth-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 420px;
    max-width: 90vw;
    background: white;
    border-radius: 16px;
    padding: 32px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.auth-modal.open {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}
.auth-close-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: #999;
}
.auth-tabs {
    display: flex;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--birch);
}
.auth-tab {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    color: #999;
    position: relative;
    transition: color 0.3s;
}
.auth-tab.active {
    color: var(--sage);
    font-weight: 600;
}
.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--sage);
}
.auth-form .form-group {
    margin-bottom: 16px;
}
.auth-form label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--charcoal);
    font-weight: 500;
}
.auth-form input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--birch);
    border-radius: 8px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.3s;
    box-sizing: border-box;
}
.auth-form input:focus {
    border-color: var(--sage);
}
.btn-block {
    width: 100%;
    justify-content: center;
}

/* ============================================
   悬浮按钮
   ============================================ */
.floating-buttons {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}
.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    transition: all 0.3s;
    color: var(--sage);
}
.float-btn:hover {
    background: var(--sage);
    color: white;
    transform: translateY(-2px);
}
.float-btn .material-symbols-outlined {
    font-size: 24px;
}

/* ============================================
   客服弹窗
   ============================================ */
.chat-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}
.chat-overlay.open {
    opacity: 1;
    visibility: visible;
}
.chat-widget {
    position: fixed;
    right: 24px;
    bottom: 92px;
    width: 340px;
    max-width: calc(100vw - 48px);
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.2);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s;
    overflow: hidden;
}
.chat-widget.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.chat-header {
    background: var(--sage);
    color: white;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.chat-header h3 {
    font-size: 16px;
    font-weight: 500;
}
.chat-body {
    height: 280px;
    overflow-y: auto;
    padding: 16px;
    background: var(--beige);
}
.chat-message {
    margin-bottom: 12px;
    max-width: 80%;
}
.chat-message.bot {
    margin-right: auto;
}
.chat-message.user {
    margin-left: auto;
}
.chat-message p {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.4;
}
.chat-message.bot p {
    background: white;
    border-bottom-left-radius: 4px;
    color: var(--charcoal);
}
.chat-message.user p {
    background: var(--sage);
    color: white;
    border-bottom-right-radius: 4px;
}
.chat-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}
.chat-quick button {
    padding: 6px 12px;
    background: white;
    border: 1px solid var(--birch);
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    color: var(--charcoal);
    transition: all 0.2s;
}
.chat-quick button:hover {
    border-color: var(--sage);
    color: var(--sage);
}
.chat-input {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--birch);
}
.chat-input input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--birch);
    border-radius: 20px;
    font-size: 14px;
    outline: none;
}
.chat-input input:focus {
    border-color: var(--sage);
}
.chat-input button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--sage);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

/* ============================================
   购物车抽屉 - 强化
   ============================================ */
.cart-items {
    padding: 0 16px;
}
.cart-item {
    display: flex;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid var(--birch);
}
.cart-item img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 8px;
}
.cart-item-info {
    flex: 1;
    min-width: 0;
}
.cart-item-info h5 {
    font-size: 14px;
    color: var(--charcoal);
    font-weight: 500;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.cart-item-info p {
    font-size: 15px;
    font-weight: 600;
    color: var(--sage);
    margin-bottom: 8px;
}
.cart-qty {
    display: flex;
    align-items: center;
    gap: 8px;
}
.cart-qty button {
    width: 24px;
    height: 24px;
    border: 1px solid var(--birch);
    background: white;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
.cart-qty span {
    font-size: 14px;
    min-width: 20px;
    text-align: center;
}
.cart-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: #ccc;
    font-size: 14px;
    align-self: flex-start;
    padding: 4px;
}
.cart-remove:hover { color: #d64545; }
.cart-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--birch);
}
.cart-total-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--charcoal);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1024px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .banner-section { height: 400px; }
    .banner-tag { font-size: 36px; }
}
@media (max-width: 768px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .category-grid { grid-template-columns: 1fr; }
    .banner-section { height: 300px; }
    .banner-tag { font-size: 28px; }
    .banner-desc { font-size: 14px; }
    .banner-arrow { width: 36px; height: 36px; }
    .banner-arrow .material-symbols-outlined { font-size: 20px; }
    .floating-buttons { right: 16px; bottom: 16px; }
    .float-btn { width: 44px; height: 44px; }
    .chat-widget { right: 16px; bottom: 76px; width: calc(100vw - 32px); }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
}