/* ===================================================
   翠園綠植 — 設計系統 (Design System)
   ─────────────────────────────────────
   侘寂美學 × 自然綠意 × 標楷體優雅
   =================================================== */

/* ── 字體載入 ── */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;500;600;700;900&display=swap');

/* ── CSS 變數 ── */
:root {
  /* 主色調 — 取自自然綠意 */
  --color-primary: #2d5a27;
  --color-primary-light: #4a7c3f;
  --color-primary-dark: #1a3d18;
  --color-primary-50: #f0f7ef;
  --color-primary-100: #d4e8d1;
  --color-primary-200: #a8d1a0;
  --color-primary-300: #7dba70;
  --color-primary-400: #5a9e4f;
  --color-primary-500: #2d5a27;
  --color-primary-600: #244b20;
  --color-primary-700: #1a3d18;

  /* 輔助色 — 泥土與暖陽 */
  --color-accent: #c19c5c;
  --color-accent-light: #d4b47a;
  --color-accent-dark: #9a7a3e;
  --color-warm: #e8d5b7;
  --color-terracotta: #c67a4a;
  --color-sage: #9cac89;

  /* 中性色 */
  --color-white: #ffffff;
  --color-cream: #faf8f5;
  --color-ivory: #f5f2ed;
  --color-sand: #e8e2d9;
  --color-stone: #bbb5aa;
  --color-charcoal: #3a3a3a;
  --color-ink: #1a1a1a;

  /* 語意色 */
  --color-success: #4caf50;
  --color-warning: #ff9800;
  --color-error: #e53935;
  --color-info: #42a5f5;

  /* 字體 */
  --font-heading: "DFKai-SB", "標楷體", "BiauKai", "Noto Serif TC", serif;
  --font-body: "DFKai-SB", "標楷體", "BiauKai", "Noto Serif TC", serif;
  --font-accent: "Noto Serif TC", serif;

  /* 字級 */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* 間距 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* 圓角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* 陰影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 20px rgba(45,90,39,0.15);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.08);

  /* 過渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* 佈局 */
  --container-max: 1280px;
  --header-height: 72px;
  --announcement-height: 36px;
}

/* ── 基礎重設 ── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--color-charcoal);
  background-color: var(--color-cream);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

button {
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  background: none;
}

ul, ol {
  list-style: none;
}

/* ── 容器 ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ── 公告列 ── */
.announcement-bar {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  text-align: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  letter-spacing: 2px;
  position: relative;
  overflow: hidden;
  height: var(--announcement-height);
  display: flex;
  align-items: center;
  justify-content: center;
}

.announcement-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: shimmer 3s ease-in-out infinite;
}

.announcement-bar .announcement-icon {
  margin-right: var(--space-2);
  animation: bounce-gentle 2s ease-in-out infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(50%); }
}

@keyframes bounce-gentle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

/* ── 主導覽列 ── */
.main-header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.main-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 var(--space-6);
  max-width: var(--container-max);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-spring);
}

.logo:hover .logo-icon {
  transform: rotate(-10deg) scale(1.05);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 2px;
}

.logo-text span {
  color: var(--color-accent);
}

/* 主選單 */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-charcoal);
  font-weight: 500;
  letter-spacing: 1px;
  transition: color var(--transition-base);
  cursor: pointer;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-item:hover::after,
.nav-item.active::after {
  width: 60%;
}

.nav-item:hover {
  color: var(--color-primary);
}

/* 下拉選單 */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 100;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-charcoal);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
  padding-left: var(--space-5);
}

/* 導覽工具列 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.action-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-charcoal);
  font-size: 1.25rem;
  transition: all var(--transition-base);
}

.action-btn:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.action-btn .badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 18px;
  height: 18px;
  background: var(--color-terracotta);
  color: var(--color-white);
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* 漢堡選單 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  cursor: pointer;
}

.hamburger span {
  width: 100%;
  height: 2px;
  background: var(--color-charcoal);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

/* ── 英雄區塊 ── */
.hero-section {
  position: relative;
  height: 85vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-ivory) 40%, var(--color-warm) 100%);
}

.hero-bg::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(45,90,39,0.06) 0%, transparent 70%);
  animation: float-slow 12s ease-in-out infinite;
}

.hero-bg::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60%;
  height: 160%;
  background: radial-gradient(ellipse, rgba(193,156,92,0.08) 0%, transparent 70%);
  animation: float-slow 15s ease-in-out infinite reverse;
}

@keyframes float-slow {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(20px, -30px) rotate(2deg); }
  66% { transform: translate(-10px, 15px) rotate(-1deg); }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.hero-text {
  max-width: 540px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(45,90,39,0.08);
  border: 1px solid rgba(45,90,39,0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, var(--text-6xl));
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-ink);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-title .highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(45,90,39,0.12);
  border-radius: 4px;
  z-index: -1;
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--color-stone);
  line-height: 1.8;
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.6s ease-out 0.6s both;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  animation: fadeInUp 0.6s ease-out 0.8s both;
}

.hero-image {
  position: relative;
  animation: fadeInRight 0.8s ease-out 0.4s both;
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

.hero-image::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 120px;
  height: 120px;
  border: 3px solid var(--color-primary-200);
  border-radius: var(--radius-2xl);
  opacity: 0.5;
  z-index: -1;
}

.hero-image::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: -15px;
  width: 80px;
  height: 80px;
  background: var(--color-accent);
  border-radius: var(--radius-xl);
  opacity: 0.2;
  z-index: -1;
}

/* 浮動裝飾 */
.floating-leaf {
  position: absolute;
  font-size: 2rem;
  opacity: 0.15;
  animation: float-leaves 8s ease-in-out infinite;
  z-index: 1;
}

.floating-leaf:nth-child(1) { top: 15%; left: 10%; animation-delay: 0s; }
.floating-leaf:nth-child(2) { top: 60%; right: 8%; animation-delay: 2s; font-size: 1.5rem; }
.floating-leaf:nth-child(3) { bottom: 20%; left: 30%; animation-delay: 4s; font-size: 2.5rem; }

@keyframes float-leaves {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-15px) rotate(5deg); }
  50% { transform: translateY(5px) rotate(-3deg); }
  75% { transform: translateY(-8px) rotate(2deg); }
}

/* ── 按鈕系統 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 1px;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover::before {
  opacity: 1;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(45,90,39,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45,90,39,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary-200);
}

.btn-outline:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(193,156,92,0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(193,156,92,0.4);
}

.btn-sm {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-10);
  font-size: var(--text-lg);
}

/* ── 分類導覽 ── */
.categories-section {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-subtitle {
  font-size: var(--text-sm);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: var(--space-3);
  font-weight: 600;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-4);
}

.section-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: 0 auto;
  border-radius: var(--radius-full);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.category-card {
  position: relative;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--color-cream);
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  transition: all var(--transition-base);
  cursor: pointer;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary-50), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-primary-200);
  box-shadow: var(--shadow-lg);
}

.category-card:hover::before {
  opacity: 1;
}

.category-icon {
  position: relative;
  z-index: 1;
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-4);
  background: linear-gradient(135deg, var(--color-primary-100), var(--color-primary-50));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: transform var(--transition-spring);
}

.category-card:hover .category-icon {
  transform: scale(1.1) rotate(-5deg);
}

.category-name {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.category-count {
  position: relative;
  z-index: 1;
  font-size: var(--text-sm);
  color: var(--color-stone);
}

/* ── 精選商品 ── */
.featured-section {
  padding: var(--space-20) 0;
  background: linear-gradient(180deg, var(--color-cream) 0%, var(--color-ivory) 100%);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.product-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition-base);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card);
  border-color: transparent;
}

.product-image-wrapper {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-ivory);
}

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

.product-card:hover .product-image-wrapper img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 1px;
  z-index: 2;
}

.product-badge.sale {
  background: var(--color-terracotta);
}

.product-badge.new {
  background: var(--color-primary);
}

.product-badge.hot {
  background: linear-gradient(135deg, #ff6b35, #f7c948);
}

.product-wishlist {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--color-stone);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(-5px);
  z-index: 2;
  cursor: pointer;
}

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

.product-wishlist:hover {
  color: var(--color-error);
  background: var(--color-white);
  transform: scale(1.1);
}

.product-wishlist.active {
  color: var(--color-error);
}

.product-quick-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-3);
  background: linear-gradient(transparent, rgba(0,0,0,0.3));
  display: flex;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 2;
}

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

.quick-add-btn {
  padding: var(--space-2) var(--space-6);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  color: var(--color-primary-dark);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  letter-spacing: 1px;
}

.quick-add-btn:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.product-info {
  padding: var(--space-4) var(--space-5);
}

.product-category {
  font-size: var(--text-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-1);
}

.product-name {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
  line-height: 1.4;
  transition: color var(--transition-fast);
}

.product-card:hover .product-name {
  color: var(--color-primary);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}

.product-rating .stars {
  color: var(--color-accent);
  font-size: var(--text-sm);
}

.product-rating .count {
  font-size: var(--text-xs);
  color: var(--color-stone);
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.product-price .current {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.product-price .original {
  font-size: var(--text-sm);
  color: var(--color-stone);
  text-decoration: line-through;
}

/* ── 特色橫幅 ── */
.banner-section {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

.banner-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 50%, var(--color-primary-light) 100%);
  padding: var(--space-16) var(--space-12);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  color: var(--color-white);
}

.banner-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.05), transparent);
  animation: float-slow 10s ease-in-out infinite;
}

.banner-text h2 {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 700;
  margin-bottom: var(--space-4);
  line-height: 1.3;
}

.banner-text p {
  font-size: var(--text-lg);
  opacity: 0.85;
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.banner-image {
  text-align: center;
}

.banner-image img {
  max-width: 380px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

/* ── 服務特色 ── */
.features-section {
  padding: var(--space-20) 0;
  background: var(--color-cream);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.feature-card {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-100);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background: linear-gradient(135deg, var(--color-primary-50), var(--color-primary-100));
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  transition: transform var(--transition-spring);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

.feature-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2);
}

.feature-desc {
  font-size: var(--text-sm);
  color: var(--color-stone);
  line-height: 1.6;
}

/* ── 新品上架 ── */
.new-arrivals-section {
  padding: var(--space-20) 0;
  background: var(--color-white);
}

/* ── 好評推薦 ── */
.testimonials-section {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.03), transparent);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.testimonial-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  background: rgba(255,255,255,0.12);
  transform: translateY(-4px);
}

.testimonial-quote {
  font-size: var(--text-3xl);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  font-family: Georgia, serif;
}

.testimonial-text {
  font-size: var(--text-base);
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: var(--space-6);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-lg);
  font-weight: 700;
}

.testimonial-name {
  font-weight: 600;
  font-size: var(--text-base);
}

.testimonial-role {
  font-size: var(--text-sm);
  opacity: 0.7;
}

.testimonial-stars {
  color: var(--color-accent);
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

/* ── 電子報訂閱 ── */
.newsletter-section {
  padding: var(--space-16) 0;
  background: var(--color-ivory);
}

.newsletter-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.04);
}

.newsletter-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: var(--space-3);
}

.newsletter-desc {
  font-size: var(--text-base);
  color: var(--color-stone);
  margin-bottom: var(--space-8);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form {
  display: flex;
  gap: var(--space-3);
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  border: 2px solid var(--color-sand);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-charcoal);
  transition: border-color var(--transition-base);
  outline: none;
}

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

.newsletter-input::placeholder {
  color: var(--color-stone);
}

/* ── 頁尾 ── */
.main-footer {
  background: var(--color-ink);
  color: rgba(255,255,255,0.8);
  padding: var(--space-16) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-text {
  color: var(--color-white);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: 1.8;
  opacity: 0.7;
  margin-bottom: var(--space-6);
}

.footer-socials {
  display: flex;
  gap: var(--space-3);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--color-primary);
  transform: translateY(-3px);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-5);
  letter-spacing: 1px;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  opacity: 0.7;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) 0;
  font-size: var(--text-sm);
  opacity: 0.5;
}

/* ── 搜尋覆蓋層 ── */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.search-box {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  width: 90%;
  max-width: 600px;
  box-shadow: var(--shadow-xl);
  transform: translateY(-20px);
  transition: transform var(--transition-base);
}

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

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  border: 2px solid var(--color-sand);
  border-radius: var(--radius-full);
  transition: border-color var(--transition-base);
}

.search-input-wrapper:focus-within {
  border-color: var(--color-primary);
}

.search-input-wrapper input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-charcoal);
}

.search-input-wrapper input::placeholder {
  color: var(--color-stone);
}

.search-close {
  font-size: 1.2rem;
  color: var(--color-stone);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.search-close:hover {
  color: var(--color-charcoal);
}

.search-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.search-tag {
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary-50);
  color: var(--color-primary);
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-tag:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── 購物車側欄 ── */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -420px;
  width: 400px;
  height: 100vh;
  background: var(--color-white);
  box-shadow: var(--shadow-xl);
  z-index: 2000;
  transition: right var(--transition-base);
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  right: 0;
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-sand);
}

.cart-header h3 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-ink);
}

.cart-close {
  font-size: 1.2rem;
  color: var(--color-stone);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.cart-close:hover {
  color: var(--color-charcoal);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-6);
}

.cart-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-ivory);
}

.cart-item-image {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
}

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

.cart-item-info {
  flex: 1;
}

.cart-item-name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

.cart-item-price {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 600;
}

.cart-item-qty {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.cart-item-qty button {
  width: 28px;
  height: 28px;
  border: 1px solid var(--color-sand);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-charcoal);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.cart-item-qty button:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary);
}

.cart-item-qty span {
  font-size: var(--text-sm);
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

.cart-item-remove {
  font-size: var(--text-sm);
  color: var(--color-stone);
  cursor: pointer;
  transition: color var(--transition-fast);
  align-self: flex-start;
}

.cart-item-remove:hover {
  color: var(--color-error);
}

.cart-empty {
  text-align: center;
  padding: var(--space-12) var(--space-4);
}

.cart-empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  opacity: 0.3;
}

.cart-empty p {
  color: var(--color-stone);
  font-size: var(--text-base);
}

.cart-footer {
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--color-sand);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.cart-total-label {
  font-size: var(--text-base);
  color: var(--color-charcoal);
}

.cart-total-amount {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.cart-checkout-btn {
  width: 100%;
}

/* ── 購物車覆蓋層 ── */
.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

/* ── 回到頂部 ── */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  z-index: 999;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ── 通知提示 ── */
.toast {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-ink);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  opacity: 0;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: var(--color-primary);
}

/* ── 載入動畫 ── */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── 分類篩選標籤 ── */
.filter-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
  flex-wrap: wrap;
}

.filter-tab {
  padding: var(--space-2) var(--space-5);
  border: 2px solid var(--color-sand);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-charcoal);
  cursor: pointer;
  transition: all var(--transition-base);
  letter-spacing: 0.5px;
}

.filter-tab:hover {
  border-color: var(--color-primary-200);
  color: var(--color-primary);
}

.filter-tab.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ── 更多商品按鈕 ── */
.load-more {
  text-align: center;
  margin-top: var(--space-10);
}

/* ── 響應式設計 ── */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-8);
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image {
    max-width: 500px;
    margin: 0 auto;
  }

  .products-grid,
  .categories-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .banner-card {
    grid-template-columns: 1fr;
    text-align: center;
    padding: var(--space-10) var(--space-6);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .main-nav {
    display: none;
    position: fixed;
    top: calc(var(--announcement-height) + var(--header-height));
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-4);
    box-shadow: var(--shadow-lg);
    gap: 0;
    z-index: 999;
  }

  .main-nav.active {
    display: flex;
  }

  .nav-item {
    width: 100%;
    text-align: center;
    padding: var(--space-3) var(--space-4);
  }

  .nav-item::after {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-section {
    height: auto;
    min-height: auto;
    padding: var(--space-12) 0;
  }

  .hero-title {
    font-size: var(--text-3xl);
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .features-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }

  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
}

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

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .categories-grid {
    grid-template-columns: 1fr 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ── 滾動條美化 ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-ivory);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary-200);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-300);
}

/* ── 文字選取 ── */
::selection {
  background: var(--color-primary-200);
  color: var(--color-primary-dark);
}