/* ============================================================
   LUXE STEP — 奢侈品鞋履电商样式
   简洁高级 · 白底为主 · 金色点缀
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --white: #FFFFFF;
  --off-white: #FAFAFA;
  --light-gray: #F5F5F5;
  --mid-gray: #E8E8E8;
  --gray: #999999;
  --dark-gray: #333333;
  --black: #1A1A1A;
  --gold: #C5A572;
  --gold-light: #E0D0B0;
  --gold-dark: #A8894D;
  --font-heading: 'Cormorant Garamond', 'Noto Serif SC', Georgia, 'Times New Roman', serif;
  --font-body: 'Jost', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --border: 1px solid var(--mid-gray);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.08);
  --radius: 4px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.7;
  color: var(--dark-gray);
  background: var(--white);
  letter-spacing: 0.02em;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }
input, select, textarea { font-family: var(--font-body); }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--black);
  letter-spacing: 0.04em;
}
h1 { font-size: 3rem; line-height: 1.15; }
h2 { font-size: 2.2rem; line-height: 1.2; }
h3 { font-size: 1.6rem; line-height: 1.3; }
h4 { font-size: 1.2rem; line-height: 1.4; }

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
}

/* --- Announcement Bar --- */
.announcement-bar {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 10px 16px;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 1000;
  border-bottom: var(--border);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--black);
}

.logo .dot { color: var(--gold); }

.header-nav { display: flex; gap: 32px; }
.header-nav a {
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  transition: color var(--transition);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.header-nav a:hover,
.header-nav a.active {
  color: var(--black);
  border-bottom-color: var(--black);
}

.header-icons { display: flex; gap: 20px; align-items: center; }
.header-icons button,
.header-icons .icon-link {
  font-size: 1.2rem;
  color: var(--dark-gray);
  transition: color var(--transition);
  position: relative;
  cursor: pointer;
  background: none; border: none;
}
.header-icons button:hover,
.header-icons .icon-link:hover { color: var(--black); }

.cart-count {
  position: absolute;
  top: -6px; right: -8px;
  background: var(--black);
  color: var(--white);
  font-size: 0.6rem;
  width: 17px; height: 17px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
}

.mobile-menu-toggle { display: none; }
@media (max-width: 768px) {
  .header-nav { display: none; }
  .mobile-menu-toggle { display: block; font-size: 1.4rem; color: var(--black); }
  .header-inner { padding: 0 20px; }
}

/* --- Breadcrumb --- */
.breadcrumb {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px 40px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray);
}
.breadcrumb a { color: var(--gray); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--black); }
.breadcrumb span { color: var(--black); }
.breadcrumb .sep { color: var(--mid-gray); margin: 0 8px; }

/* ============================================================
   HERO BANNER — 全屏轮播
   ============================================================ */
.hero-banner {
  position: relative;
  width: 100%;
  height: 85vh;
  min-height: 520px;
  max-height: 800px;
  overflow: hidden;
  background: var(--black);
}

.hero-slides {
  display: flex;
  height: 100%;
  transition: transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
}

.hero-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-slide .slide-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}

.hero-slide .slide-content {
  position: relative; z-index: 2;
  text-align: center;
  color: var(--white);
  padding: 40px;
}

.hero-slide .slide-content .slide-brand {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero-slide .slide-content .slide-tagline {
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  opacity: 0.85;
  margin-bottom: 28px;
}

.hero-slide .slide-content .slide-cta {
  display: inline-block;
  padding: 14px 40px;
  border: 1px solid var(--white);
  color: var(--white);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 0.4s ease;
}
.hero-slide .slide-content .slide-cta:hover {
  background: var(--white);
  color: var(--black);
}

/* 轮播控制 */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  color: var(--white);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s ease;
  border: 1px solid rgba(255,255,255,0.25);
}
.hero-arrow:hover { background: rgba(255,255,255,0.3); }
.hero-arrow.prev { left: 24px; }
.hero-arrow.next { right: 24px; }

.hero-dots {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}
.hero-dots .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  transition: all 0.3s ease;
  cursor: pointer;
}
.hero-dots .dot.active { background: var(--white); width: 24px; border-radius: 4px; }

@media (max-width: 768px) {
  .hero-banner { height: 60vh; min-height: 380px; }
  .hero-slide .slide-content .slide-brand { font-size: 2.2rem; }
  .hero-arrow { width: 36px; height: 36px; font-size: 0.9rem; }
  .hero-arrow.prev { left: 12px; }
  .hero-arrow.next { right: 12px; }
}

/* ============================================================
   SECTION TITLE
   ============================================================ */
.section-title {
  text-align: center;
  padding: 0 40px;
  margin-bottom: 40px;
}
.section-title h2 {
  font-size: 2.2rem;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.section-title .subtitle {
  font-size: 0.9rem;
  color: var(--gray);
  letter-spacing: 0.04em;
  font-weight: 300;
}

/* ============================================================
   BRAND DIRECTORY — 品牌入口网格
   ============================================================ */
.brand-section {
  padding: 80px 0;
}

.brand-grid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--mid-gray);
}

.brand-card {
  background: var(--white);
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.brand-card:hover { background: var(--off-white); }

.brand-card-content { text-align: center; z-index: 2; padding: 24px; }
.brand-card-content .brand-name {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--black);
  margin-bottom: 6px;
  transition: color var(--transition);
}
.brand-card-content .brand-count {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}
.brand-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, transparent 0%, transparent 100%);
  transition: background 0.5s ease;
}
.brand-card:hover::after {
  background: linear-gradient(135deg, rgba(197,165,114,0.04) 0%, rgba(197,165,114,0.01) 100%);
}
.brand-card .card-ornament {
  position: absolute;
  top: 20px; right: 20px;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.4s ease;
}
.brand-card:hover .card-ornament { opacity: 0.25; transform: translateY(0); }

@media (max-width: 1024px) {
  .brand-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .brand-grid { grid-template-columns: repeat(2, 1fr); gap: 1px; padding: 0 20px; }
  .brand-card-content .brand-name { font-size: 1.2rem; }
  .brand-section { padding: 48px 0; }
}

/* ============================================================
   CATALOG LAYOUT — 左侧品牌导航 + 右侧商品区
   ============================================================ */
.catalog-layout {
  max-width: 1800px;
  margin: 0 auto;
  display: flex;
  gap: 0;
  min-height: 60vh;
}

/* --- 左侧品牌侧边栏 --- */
.brand-sidebar {
  width: 220px;
  min-width: 220px;
  background: var(--off-white);
  border-right: var(--border);
  padding: 40px 0;
  position: sticky;
  top: 70px;
  height: calc(100vh - 70px);
  overflow-y: auto;
  z-index: 100;
}
.brand-sidebar::-webkit-scrollbar { width: 4px; }
.brand-sidebar::-webkit-scrollbar-thumb { background: var(--mid-gray); border-radius: 2px; }

.sidebar-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.1em;
  color: var(--black);
  padding: 0 28px 20px;
  margin-bottom: 8px;
  border-bottom: var(--border);
}

/* --- 竖向品牌标签 --- */
.brand-tabs-vertical {
  display: flex;
  flex-direction: column;
  padding: 8px 0;
}

.brand-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  font-size: 0.73rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gray);
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all var(--transition);
  font-family: var(--font-body);
  font-weight: 400;
  user-select: none;
}
.brand-tab:hover { color: var(--black); background: rgba(0,0,0,0.02); }
.brand-tab.active {
  color: var(--black);
  font-weight: 500;
  background: var(--white);
  border-left-color: var(--gold);
}
.brand-tab .tab-count {
  font-size: 0.62rem;
  color: var(--gray);
  font-weight: 300;
  letter-spacing: 0.02em;
  margin-left: 8px;
}
.brand-tab.active .tab-count { color: var(--gold-dark); }

/* "全部" first tab */
.brand-tab-all {
  font-weight: 500;
  letter-spacing: 0.08em;
}

/* --- 右侧商品主区域 --- */
.catalog-main {
  flex: 1;
  min-width: 0;
}

/* --- 移动端：侧边栏变回顶部横条 --- */
@media (max-width: 900px) {
  .catalog-layout { flex-direction: column; }
  .brand-sidebar {
    width: 100%;
    min-width: 100%;
    height: auto;
    position: relative;
    top: 0;
    padding: 0;
    border-right: none;
    border-bottom: var(--border);
    overflow-x: auto;
    overflow-y: visible;
  }
  .sidebar-title { display: none; }
  .brand-tabs-vertical {
    flex-direction: row;
    white-space: nowrap;
    padding: 0 12px;
  }
  .brand-tab {
    flex-shrink: 0;
    padding: 14px 14px;
    font-size: 0.68rem;
    letter-spacing: 0.03em;
    border-left: none;
    border-bottom: 2px solid transparent;
  }
  .brand-tab.active { border-left: none; border-bottom-color: var(--gold); background: transparent; }
  .brand-tab .tab-count { display: none; }
}

/* ============================================================
   BRAND PAGE — 品牌分类页
   ============================================================ */
.brand-header {
  text-align: center;
  padding: 56px 40px 16px;
}
.brand-header h1 {
  font-size: 2.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.brand-header .brand-desc {
  max-width: 620px;
  margin: 0 auto;
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.8;
}

.brand-filters {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: var(--border);
}
.filter-group { display: flex; gap: 20px; align-items: center; }
.filter-group label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}
.filter-group select {
  padding: 8px 32px 8px 12px;
  border: var(--border);
  font-size: 0.8rem;
  color: var(--dark-gray);
  background: var(--white);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23999'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}
.product-count-label {
  font-size: 0.72rem;
  color: var(--gray);
  letter-spacing: 0.04em;
}

/* Product Grid — 6 列 */
.product-grid {
  max-width: 1600px;
  margin: 0 auto;
  padding: 36px 40px 80px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 28px 16px;
}

.product-card { transition: transform 0.3s ease; }
.product-card:hover { transform: translateY(-4px); }
.product-card a { display: block; }

.product-card .product-image {
  background: var(--light-gray);
  aspect-ratio: 3 / 4;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
}
.product-card .product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card .product-image .placeholder {
  font-size: 2.6rem;
  color: var(--mid-gray);
  transition: transform 0.5s ease;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card:hover .product-image img { transform: scale(1.05); }
.product-card:hover .product-image .placeholder { transform: scale(1.05); }

.product-card .product-image .quick-add {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 12px;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.product-card:hover .product-image .quick-add { transform: translateY(0); }

.product-card .product-brand {
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 4px;
}
.product-card .product-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 400;
  color: var(--black);
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  line-height: 1.3;
}
.product-card .product-price {
  font-size: 0.88rem;
  color: var(--dark-gray);
  letter-spacing: 0.04em;
}

/* ============================================================
   PAGINATION — 分页导航
   ============================================================ */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  padding: 20px 40px 60px;
  max-width: 1600px;
  margin: 0 auto;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  font-size: 0.78rem;
  font-family: var(--font-body);
  letter-spacing: 0.04em;
  color: var(--dark-gray);
  background: var(--white);
  border: var(--border);
  cursor: pointer;
  transition: all var(--transition);
  user-select: none;
}
.pagination-btn:hover { background: var(--off-white); color: var(--black); }
.pagination-btn.active {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.pagination-btn.disabled {
  color: var(--mid-gray);
  pointer-events: none;
  cursor: default;
}
.pagination-info {
  font-size: 0.72rem;
  color: var(--gray);
  padding: 0 12px;
  letter-spacing: 0.04em;
}

@media (max-width: 768px) {
  .pagination { padding: 12px 16px 40px; gap: 4px; }
  .pagination-btn { min-width: 34px; height: 34px; font-size: 0.7rem; padding: 0 8px; }
}

@media (max-width: 1400px) {
  .product-grid { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 860px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 20px 12px; padding: 20px 16px 60px; }
  .brand-filters { flex-direction: column; gap: 12px; align-items: flex-start; padding: 16px 20px; }
  .brand-header { padding: 32px 20px 12px; }
  .brand-header h1 { font-size: 2rem; }
}

/* ============================================================
   PRODUCT DETAIL PAGE
   ============================================================ */
.product-detail {
  max-width: 1400px;
  margin: 0 auto;
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

/* --- Image Gallery with Arrows --- */
.product-gallery {
  position: relative;
  user-select: none;
}

.gallery-stage {
  position: relative;
  overflow: hidden;
  background: var(--light-gray);
  aspect-ratio: 3 / 4;
}

.gallery-track {
  display: flex;
  height: 100%;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.gallery-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.gallery-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gallery-slide .placeholder-img {
  font-size: 6rem;
  color: var(--mid-gray);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-slide .slide-tag {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(255,255,255,0.9);
  padding: 4px 12px;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--dark-gray);
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: var(--shadow-md);
  color: var(--black);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  border: var(--border);
}
.gallery-arrow:hover { background: var(--black); color: var(--white); border-color: var(--black); }
.gallery-arrow.prev { left: -20px; }
.gallery-arrow.next { right: -20px; }

.gallery-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}
.gallery-dots .g-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--mid-gray);
  cursor: pointer;
  transition: all 0.3s ease;
}
.gallery-dots .g-dot.active { background: var(--black); width: 20px; border-radius: 4px; }

@media (max-width: 900px) {
  .gallery-arrow.prev { left: 8px; }
  .gallery-arrow.next { right: 8px; }
}

/* --- Product Info --- */
.product-info { padding-top: 8px; }

.product-info .brand-label {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 8px;
}
.product-info h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}
.product-info .price {
  font-size: 1.4rem;
  color: var(--dark-gray);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}
.product-info .desc {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* --- Option Selectors --- */
.option-group { margin-bottom: 20px; }
.option-group .option-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 10px;
}
.option-group .option-label span { color: var(--gray); font-weight: 300; }

.color-options { display: flex; gap: 10px; flex-wrap: wrap; }
.color-swatch {
  padding: 10px 22px;
  border: var(--border);
  font-size: 0.8rem;
  color: var(--dark-gray);
  transition: all var(--transition);
  cursor: pointer;
  background: var(--white);
}
.color-swatch:hover { border-color: var(--black); }
.color-swatch.selected { border-color: var(--black); background: var(--black); color: var(--white); }

.size-options { display: flex; gap: 8px; flex-wrap: wrap; }
.size-swatch {
  width: 46px; height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: var(--border);
  font-size: 0.82rem;
  color: var(--dark-gray);
  transition: all var(--transition);
  cursor: pointer;
  background: var(--white);
}
.size-swatch:hover { border-color: var(--black); }
.size-swatch.selected { border-color: var(--black); background: var(--black); color: var(--white); }

/* --- Add to Cart --- */
.add-to-cart-section {
  margin-top: 28px;
  padding-top: 24px;
  border-top: var(--border);
}
.quantity-selector {
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}
.quantity-selector button {
  width: 46px; height: 46px;
  border: var(--border);
  background: var(--white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  color: var(--dark-gray);
}
.quantity-selector button:hover { background: var(--light-gray); }
.quantity-selector input {
  width: 56px; height: 46px;
  border: var(--border);
  border-left: none; border-right: none;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--black);
}

.btn-add-to-cart {
  width: 100%;
  padding: 16px;
  background: var(--black);
  color: var(--white);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition);
  border: 1px solid var(--black);
}
.btn-add-to-cart:hover { background: var(--white); color: var(--black); }

/* Product Meta */
.product-meta {
  margin-top: 22px;
  padding-top: 22px;
  border-top: var(--border);
}
.product-meta .meta-item {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.75rem;
  color: var(--gray);
}
.product-meta .meta-item .meta-key {
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-details-list { margin-top: 18px; }
.product-details-list li {
  font-size: 0.8rem;
  color: var(--dark-gray);
  padding: 5px 0 5px 16px;
  position: relative;
  letter-spacing: 0.03em;
}
.product-details-list li::before {
  content: '·';
  position: absolute; left: 0;
  color: var(--gold);
  font-weight: 700;
}

@media (max-width: 900px) {
  .product-detail { grid-template-columns: 1fr; gap: 28px; padding: 16px; }
  .product-info h1 { font-size: 1.5rem; }
}

/* ============================================================
   CART PAGE
   ============================================================ */
.cart-page {
  max-width: 1000px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}
.cart-page h1 { text-align: center; margin-bottom: 40px; }

.cart-empty {
  text-align: center;
  padding: 80px 20px;
}
.cart-empty .empty-icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.3; }
.cart-empty p { color: var(--gray); margin-bottom: 24px; }

.btn-continue {
  display: inline-block;
  padding: 14px 36px;
  border: var(--border);
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dark-gray);
  transition: all var(--transition);
}
.btn-continue:hover { background: var(--black); color: var(--white); border-color: var(--black); }

.cart-items { border-top: var(--border); }

.cart-item {
  display: grid;
  grid-template-columns: 96px 2fr 1fr 1fr 40px;
  gap: 20px;
  align-items: center;
  padding: 24px 0;
  border-bottom: var(--border);
}
.cart-item .item-image {
  background: var(--light-gray);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--mid-gray);
  overflow: hidden;
}
.cart-item .item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cart-item .item-info .item-brand {
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 4px;
}
.cart-item .item-info .item-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--black);
  margin-bottom: 4px;
}
.cart-item .item-info .item-variant {
  font-size: 0.7rem;
  color: var(--gray);
}
.cart-item .item-price {
  font-size: 0.9rem;
  color: var(--dark-gray);
  text-align: right;
}
.cart-item .item-qty {
  display: flex;
  align-items: center;
  justify-content: center;
}
.cart-item .item-qty button {
  width: 32px; height: 32px;
  border: var(--border);
  background: var(--white);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dark-gray);
}
.cart-item .item-qty input {
  width: 38px; height: 32px;
  border: var(--border);
  border-left: none; border-right: none;
  text-align: center;
  font-size: 0.8rem;
  color: var(--black);
}
.cart-item .item-remove {
  font-size: 1.1rem;
  color: var(--gray);
  transition: color var(--transition);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cart-item .item-remove:hover { color: #c0392b; }

@media (max-width: 640px) {
  .cart-item { grid-template-columns: 64px 1fr 36px; gap: 12px; }
  .cart-item .item-price,
  .cart-item .item-qty { display: none; }
}

/* Cart Summary */
.cart-summary {
  margin-top: 32px;
  padding: 32px;
  background: var(--off-white);
}
.cart-summary .summary-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  color: var(--dark-gray);
}
.cart-summary .summary-row.total {
  border-top: var(--border);
  padding-top: 16px;
  margin-top: 8px;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--black);
}

.btn-checkout {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--gold);
  color: var(--white);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition);
  border: 1px solid var(--gold);
  text-align: center;
  margin-top: 20px;
}
.btn-checkout:hover { background: var(--gold-dark); border-color: var(--gold-dark); }

/* ============================================================
   CHECKOUT PAGE
   ============================================================ */
.checkout-page {
  max-width: 1040px;
  margin: 0 auto;
  padding: 40px 40px 80px;
}
.checkout-page h1 { text-align: center; margin-bottom: 40px; }

.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 44px;
}
@media (max-width: 900px) {
  .checkout-layout { grid-template-columns: 1fr; }
}

.checkout-section { margin-bottom: 32px; }
.checkout-section h3 {
  font-size: 1rem;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: var(--border);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 4px;
}
.form-row.single { grid-template-columns: 1fr; }

.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dark-gray);
  margin-bottom: 5px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: var(--border);
  font-size: 0.85rem;
  color: var(--black);
  transition: border-color var(--transition);
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--black);
}

/* Payment options */
.payment-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: var(--border);
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--transition);
  background: var(--white);
}
.payment-option:hover { border-color: var(--black); }
.payment-option.selected { border-color: var(--black); background: var(--off-white); }
.payment-option input[type="radio"] { accent-color: var(--black); }

/* Checkout Sidebar */
.checkout-sidebar {
  background: var(--off-white);
  padding: 30px;
  align-self: start;
  position: sticky;
  top: 100px;
}
.checkout-sidebar h3 {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: var(--border);
}
.checkout-sidebar .order-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: var(--border);
}
.checkout-sidebar .order-item .oi-image {
  width: 52px; height: 68px;
  background: var(--mid-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--gray);
  flex-shrink: 0;
  overflow: hidden;
}
.checkout-sidebar .order-item .oi-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.checkout-sidebar .order-item .oi-info { flex: 1; font-size: 0.76rem; }
.checkout-sidebar .order-item .oi-name { color: var(--black); margin-bottom: 2px; }
.checkout-sidebar .order-item .oi-variant { color: var(--gray); font-size: 0.68rem; }
.checkout-sidebar .order-item .oi-price { font-size: 0.8rem; color: var(--dark-gray); margin-top: 4px; }

.order-totals { margin-top: 16px; padding-top: 16px; border-top: var(--border); }
.order-totals .total-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 0.8rem;
}
.order-totals .grand-total {
  margin-top: 8px;
  padding-top: 12px;
  border-top: var(--border);
  font-size: 1rem;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
}

.btn-place-order {
  width: 100%;
  padding: 16px;
  background: var(--black);
  color: var(--white);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-top: 20px;
  transition: all var(--transition);
  border: 1px solid var(--black);
}
.btn-place-order:hover { background: var(--white); color: var(--black); }

/* Confirmation */
.confirmation {
  text-align: center;
  padding: 80px 40px;
  max-width: 560px;
  margin: 0 auto;
}
.confirmation .check-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: #e8f5e9;
  color: #2e7d32;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}
.confirmation h1 { margin-bottom: 12px; }
.confirmation p { color: var(--gray); margin-bottom: 6px; }
.confirmation .order-number {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--black);
  letter-spacing: 0.06em;
}
.confirmation .btn-continue { margin-top: 32px; }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 40px 80px;
}

.about-hero {
  text-align: center;
  margin-bottom: 48px;
}
.about-hero h1 { margin-bottom: 12px; }
.about-hero .tagline {
  font-size: 1rem;
  color: var(--gray);
  letter-spacing: 0.06em;
}

.about-story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 60px;
}
.about-story .story-image {
  background: var(--light-gray);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--mid-gray);
}
.about-story .story-text h2 {
  margin-bottom: 16px;
  font-size: 1.8rem;
}
.about-story .story-text p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.9;
  margin-bottom: 12px;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 60px;
  text-align: center;
}
.about-values .value-item .value-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.about-values .value-item h4 {
  font-size: 1rem;
  margin-bottom: 8px;
  letter-spacing: 0.06em;
}
.about-values .value-item p {
  font-size: 0.82rem;
  color: var(--gray);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .about-story { grid-template-columns: 1fr; gap: 24px; }
  .about-values { grid-template-columns: 1fr; gap: 24px; }
  .about-page { padding: 32px 20px 60px; }
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 60px 40px 80px;
}
.contact-page h1 { text-align: center; margin-bottom: 8px; }
.contact-page > .subtitle {
  text-align: center;
  color: var(--gray);
  font-size: 0.9rem;
  margin-bottom: 48px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-form-section h3,
.contact-info-section h3 {
  font-size: 1rem;
  letter-spacing: 0.06em;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: var(--border);
}

.contact-form .form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.btn-submit {
  width: 100%;
  padding: 15px;
  background: var(--black);
  color: var(--white);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: all var(--transition);
  border: 1px solid var(--black);
}
.btn-submit:hover { background: var(--white); color: var(--black); }

.contact-info-section .info-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.contact-info-section .info-item .info-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  width: 28px;
  text-align: center;
}
.contact-info-section .info-item .info-text {
  font-size: 0.85rem;
  color: var(--dark-gray);
  line-height: 1.6;
}
.contact-info-section .info-item .info-text strong {
  display: block;
  color: var(--black);
  font-weight: 500;
  margin-bottom: 2px;
}

.social-links { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.social-link {
  padding: 10px 20px;
  border: var(--border);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--dark-gray);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.social-link:hover { background: var(--black); color: var(--white); border-color: var(--black); }

@media (max-width: 768px) {
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .contact-page { padding: 32px 20px 60px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  border-top: var(--border);
  padding: 56px 40px 24px;
  background: var(--off-white);
}
.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-col h4 {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--black);
}
.footer-col p {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.8;
}
.footer-col a {
  display: block;
  font-size: 0.8rem;
  color: var(--gray);
  padding: 3px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--black); }

.footer-bottom {
  max-width: 1400px;
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 0.68rem;
  color: var(--gray);
  letter-spacing: 0.04em;
}

@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-col:first-child { grid-column: span 2; }
}

/* ============================================================
   TOAST & UTILITIES
   ============================================================ */
.toast {
  position: fixed;
  bottom: 32px; right: 32px;
  background: var(--black);
  color: var(--white);
  padding: 16px 28px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  z-index: 9999;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.4s ease;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }

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

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   联系弹窗 Modal
   ============================================================ */
.contact-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.55);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: overlayIn 0.25s ease;
  padding: 20px;
}
.contact-overlay.fade-out {
  animation: overlayOut 0.25s ease forwards;
}
@keyframes overlayIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes overlayOut { from { opacity: 1; } to { opacity: 0; } }

.contact-modal {
  background: #fff;
  border-radius: 16px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(0,0,0,0.2);
  position: relative;
  animation: modalIn 0.3s ease;
  overflow: hidden;
}
.contact-overlay.fade-out .contact-modal {
  animation: modalOut 0.3s ease forwards;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(30px) scale(0.96); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes modalOut { from { opacity: 1; transform: translateY(0) scale(1); } to { opacity: 0; transform: translateY(20px) scale(0.97); } }

.contact-close {
  position: absolute;
  top: 12px; right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  line-height: 1;
  z-index: 2;
}
.contact-close:hover { color: #333; }

.contact-header {
  text-align: center;
  padding: 32px 24px 16px;
  border-bottom: 1px solid #f0f0f0;
}
.contact-icon {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
}
.contact-header h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 4px;
  letter-spacing: 1px;
}
.contact-product {
  font-size: 13px;
  color: #999;
  margin: 4px 0 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-body {
  padding: 20px 24px 28px;
}
.contact-hint {
  font-size: 13px;
  color: #888;
  text-align: center;
  margin: 0 0 18px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 12px;
  text-decoration: none;
  color: inherit;
  border: 1.5px solid #eee;
  transition: all 0.2s ease;
  cursor: pointer;
  background: #fafafa;
}
.contact-method:hover {
  border-color: #ccc;
  background: #f5f5f5;
  transform: translateY(-1px);
}

.contact-method-icon {
  font-size: 28px;
  flex-shrink: 0;
}
.contact-method-info {
  flex: 1;
  min-width: 0;
}
.contact-method-info strong {
  display: block;
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 2px;
}
.contact-method-info span {
  font-size: 12px;
  color: #999;
}
.contact-arrow {
  color: #ccc;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-copy {
  font-size: 11px;
  color: #c5a572;
  border: 1px solid #c5a572;
  padding: 3px 10px;
  border-radius: 20px;
  flex-shrink: 0;
  transition: all 0.2s;
}
.contact-copy.copied {
  background: #c5a572;
  color: #fff;
}

/* WhatsApp 特殊色 */
.contact-method.whatsapp:hover {
  border-color: #25D366;
  background: #f0fff5;
}
.contact-method.wechat {
  cursor: pointer;
}
.contact-method.wechat:hover {
  border-color: #07C160;
  background: #f0fff5;
}

/* ---- Order Button ---- */
.btn-order {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 2px;
  background: #1a1a1a;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: 'Jost', sans-serif;
}
.btn-order:hover {
  background: #c5a572;
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(197,165,114,0.3);
}
.btn-order-icon {
  font-size: 20px;
}

/* 下单提示文字 */
.order-section {
  margin: 24px 0;
}
.order-hint {
  text-align: center;
  font-size: 12px;
  color: #aaa;
  margin-top: 10px;
}

/* 颜色参考标签 */
.color-ref {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #f0f0f0;
}
.color-ref-label {
  font-size: 13px;
  color: #888;
  margin-right: 8px;
}
.color-tag {
  display: inline-block;
  font-size: 11px;
  padding: 3px 10px;
  margin: 3px 4px;
  background: #f5f5f5;
  border-radius: 12px;
  color: #666;
}

/* ============================================================
   FLOATING CUSTOMER SERVICE BUTTON
   ============================================================ */
.cs-float-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--black);
  color: var(--white);
  border: none;
  cursor: pointer;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
  animation: csPulse 2.5s ease-in-out infinite;
}
.cs-float-btn:hover {
  background: var(--gold);
  transform: scale(1.08);
  box-shadow: 0 8px 32px rgba(197,165,114,0.35);
  animation: none;
}

@keyframes csPulse {
  0%, 100% { box-shadow: 0 4px 24px rgba(0,0,0,0.2); }
  50% { box-shadow: 0 4px 32px rgba(0,0,0,0.4); }
}

.cs-float-btn .cs-tooltip {
  position: absolute;
  right: 64px;
  background: var(--black);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 0.72rem;
  white-space: nowrap;
  letter-spacing: 0.04em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.cs-float-btn .cs-tooltip::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--black);
}
.cs-float-btn:hover .cs-tooltip {
  opacity: 1;
}

@media (max-width: 768px) {
  .cs-float-btn {
    bottom: 20px;
    right: 16px;
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
  .cs-float-btn .cs-tooltip { display: none; }
}