/* ==================== 设计系统变量 ==================== */
:root {
  /* 主色调 - 深邃青蓝 (晨曦之蓝) */
  --color-primary: #0d4f5c;
  --color-primary-light: #14788a;
  --color-primary-dark: #06303a;

  /* 强调色 - 暖琥珀 (暮色之金) */
  --color-accent: #d4a574;
  --color-accent-light: #e8c290;
  --color-accent-dark: #b08856;

  /* 中性色 */
  --color-bg: #faf7f2;
  --color-bg-elevated: #ffffff;
  --color-bg-muted: #f0ebe1;
  --color-text: #1a2332;
  --color-text-muted: #5a6478;
  --color-text-light: #8b95a8;
  --color-border: #e6dfd2;
  --color-border-light: #f0ebe1;

  /* 状态色 */
  --color-success: #2d8659;
  --color-danger: #c44536;
  --color-warning: #d4863c;

  /* 阴影 - 多层次 */
  --shadow-xs: 0 1px 2px rgba(13, 79, 92, 0.04);
  --shadow-sm: 0 2px 8px rgba(13, 79, 92, 0.06);
  --shadow-md: 0 8px 24px rgba(13, 79, 92, 0.08);
  --shadow-lg: 0 16px 48px rgba(13, 79, 92, 0.12);
  --shadow-accent: 0 8px 24px rgba(212, 165, 116, 0.25);

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

  /* 间距 */
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
  --space-xl: 48px;
  --space-2xl: 80px;

  /* 字体 */
  --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'STSong', serif;

  /* 过渡 */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== 全局重置 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image:
    radial-gradient(at 0% 0%, rgba(13, 79, 92, 0.03) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(212, 165, 116, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
}

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

ul {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

/* ==================== 容器 ==================== */
.container {
  width: 1200px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ==================== 导航栏（深色 + 磨砂玻璃） ==================== */
.navbar {
  background: linear-gradient(135deg, #0a2540 0%, #0d4f5c 100%);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(212, 165, 116, 0.15);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}

/* 品牌标识 - 中英文混排 */
.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
  position: relative;
  padding-right: var(--space-md);
}

.navbar-brand::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 24px;
  background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
}

.navbar-brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #1a2332;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(212, 165, 116, 0.4);
  position: relative;
  overflow: hidden;
}

.navbar-brand-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 255, 255, 0.4) 50%);
}

.navbar-brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.navbar-brand-text small {
  font-size: 10px;
  color: var(--color-accent);
  font-weight: 400;
  letter-spacing: 2px;
  margin-top: 2px;
  text-transform: uppercase;
}

/* 导航菜单 */
.navbar-nav {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}

.navbar-nav a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
  transition: all var(--transition-base);
  padding: 8px 0;
  position: relative;
  letter-spacing: 0.5px;
}

.navbar-nav a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.navbar-nav a:hover {
  color: #ffffff;
}

.navbar-nav a:hover::before {
  width: 100%;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* 购物车图标 - 定制设计 */
.cart-icon {
  position: relative;
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(212, 165, 116, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--color-accent-light);
  transition: all var(--transition-base);
}

.cart-icon:hover {
  background: rgba(212, 165, 116, 0.15);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: #1a2332;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  min-width: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(212, 165, 116, 0.5);
  border: 2px solid #0d4f5c;
}

/* 简化导航栏（登录/注册页） */
.navbar-simple {
  background: linear-gradient(135deg, #0a2540 0%, #0d4f5c 100%);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-simple .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 76px;
}

/* ==================== Banner（独特视觉） ==================== */
.banner {
  width: 100%;
  height: 480px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0a2540 0%, #0d4f5c 50%, #14788a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 装饰光晕 */
.banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(212, 165, 116, 0.25) 0%, transparent 60%);
  border-radius: 50%;
  animation: float 12s ease-in-out infinite;
}

.banner::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(20, 120, 138, 0.4) 0%, transparent 60%);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-30px, 30px) scale(1.1); }
}

.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
}

.banner-placeholder {
  width: 100%;
  height: 100%;
  background: transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-lg);
}

.banner-placeholder h1 {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 4px;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #ffffff 0%, var(--color-accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.banner-placeholder p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 8px;
  font-weight: 300;
  text-transform: uppercase;
}

.banner-placeholder .divider {
  width: 80px;
  height: 2px;
  background: var(--color-accent);
  margin: var(--space-md) auto;
  position: relative;
}

.banner-placeholder .divider::before,
.banner-placeholder .divider::after {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.banner-placeholder .divider::before { left: -16px; }
.banner-placeholder .divider::after { right: -16px; }

/* ==================== 章节标题 ==================== */
.section-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin: var(--space-2xl) 0 var(--space-lg);
  position: relative;
  padding-left: 24px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 32px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-sm);
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--color-border), transparent);
  margin-left: var(--space-md);
}

.section-title-en {
  display: block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-accent-dark);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 4px;
  margin-left: 4px;
}

.section-title-wrapper {
  display: flex;
  flex-direction: column;
}

/* ==================== 商品网格 ==================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.products-grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ==================== 商品卡片（独特设计） ==================== */
.product-card {
  background-color: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  border: 1px solid var(--color-border-light);
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

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

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card-image-wrapper {
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: linear-gradient(135deg, #f0ebe1 0%, #e6dfd2 100%);
  position: relative;
}

.product-card-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 商品标签 */
.product-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 1px;
  z-index: 2;
  box-shadow: var(--shadow-xs);
}

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

.product-card-name {
  font-size: 16px;
  color: var(--color-text);
  font-weight: 600;
  margin-bottom: var(--space-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

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

.product-card-price {
  font-size: 22px;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.product-card-price .currency {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.product-card-price .original {
  font-size: 13px;
  color: var(--color-text-light);
  text-decoration: line-through;
  font-weight: 400;
}

/* 商品按钮 - 独特风格 */
.product-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 12px 0;
  background: var(--color-text);
  color: #ffffff;
  text-align: center;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.product-card-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.product-card-btn span {
  position: relative;
  z-index: 1;
}

.product-card-btn:hover::before {
  transform: translateY(0);
}

.product-card-btn:hover {
  box-shadow: 0 8px 20px rgba(13, 79, 92, 0.3);
}

/* ==================== 商品详情页 ==================== */
.product-detail {
  background-color: var(--color-bg-elevated);
  padding: var(--space-xl);
  margin: var(--space-lg) auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.product-detail-header {
  display: flex;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px dashed var(--color-border);
}

.product-detail-image {
  flex: 0 0 420px;
}

.product-detail-image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--color-bg-muted);
  cursor: pointer;
  transition: all var(--transition-base);
}

.product-detail-image img:hover {
  box-shadow: var(--shadow-lg);
}

.product-detail-image .upload-tip {
  text-align: center;
  color: var(--color-text-light);
  font-size: 13px;
  margin-top: var(--space-sm);
}

.product-detail-info {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-detail-name {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.product-detail-price {
  font-size: 36px;
  color: var(--color-primary);
  font-weight: 800;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.product-detail-price .currency {
  font-size: 20px;
  font-weight: 500;
}

.product-detail-btn {
  padding: 16px 64px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all var(--transition-base);
  margin-bottom: var(--space-lg);
  align-self: flex-start;
  position: relative;
  overflow: hidden;
}

.product-detail-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.product-detail-btn span {
  position: relative;
  z-index: 1;
}

.product-detail-btn:hover::before {
  transform: translateX(0);
}

.product-detail-btn:hover {
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}

.merchant-info {
  background: linear-gradient(135deg, var(--color-bg-muted) 0%, #f5f0e5 100%);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
}

.merchant-info h3 {
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.merchant-info h3::before {
  content: '◆';
  color: var(--color-accent);
  font-size: 12px;
}

.merchant-info p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
  display: flex;
  gap: 8px;
}

.merchant-info p:last-child {
  margin-bottom: 0;
}

/* 商品详情区 */
.product-detail-content {
  margin-top: var(--space-xl);
}

.product-detail-content h2 {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
}

.product-detail-content h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
}

.detail-text {
  line-height: 1.9;
  color: var(--color-text-muted);
}

.detail-text img {
  max-width: 100%;
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
}

.upload-detail-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  background: var(--color-text);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-bottom: var(--space-md);
  transition: all var(--transition-base);
  font-size: 14px;
}

.upload-detail-btn:hover {
  background: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ==================== 表单样式 ==================== */
.form-container {
  max-width: 480px;
  margin: var(--space-2xl) auto;
  background-color: var(--color-bg-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.form-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
}

.form-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-sm);
}

.form-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--color-text);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  background-color: var(--color-bg);
  transition: all var(--transition-fast);
  color: var(--color-text);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--color-primary-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: #ffffff;
  box-shadow: 0 0 0 4px rgba(13, 79, 92, 0.08);
}

.form-group .error-msg {
  color: var(--color-danger);
  font-size: 12px;
  margin-top: 5px;
  display: none;
}

.form-group.error .error-msg {
  display: block;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: var(--color-danger);
  background-color: rgba(196, 69, 54, 0.03);
}

/* 验证码 */
.captcha-group {
  display: flex;
  gap: var(--space-sm);
}

.captcha-group input {
  flex: 1;
}

.captcha-btn {
  padding: 0 20px;
  background: var(--color-text);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
  font-size: 14px;
  font-weight: 500;
}

.captcha-btn:hover {
  background: var(--color-primary);
  transform: translateX(2px);
}

.captcha-btn:disabled {
  background: var(--color-border);
  cursor: not-allowed;
  color: var(--color-text-light);
}

/* 复选框 */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox-group label {
  font-size: 13px;
  color: var(--color-text-muted);
  cursor: pointer;
}

/* 提交按钮 */
.form-btn {
  width: 100%;
  padding: 16px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 4px;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.form-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.form-btn span {
  position: relative;
  z-index: 1;
}

.form-btn:hover::before {
  transform: translateY(0);
}

.form-btn:hover {
  box-shadow: var(--shadow-accent);
  transform: translateY(-1px);
}

.form-btn:disabled {
  background: var(--color-border);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.form-links {
  text-align: center;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--color-border);
}

.form-links a {
  color: var(--color-primary);
  font-size: 13px;
  margin: 0 var(--space-sm);
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
}

.form-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-base);
}

.form-links a:hover::after {
  width: 100%;
}

/* ==================== 商家入驻 ==================== */
.join-container {
  max-width: 820px;
  margin: var(--space-2xl) auto;
  background-color: var(--color-bg-elevated);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.join-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
}

.agreement-box {
  max-height: 300px;
  overflow-y: auto;
  padding: var(--space-md);
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin: var(--space-lg) 0;
  line-height: 1.9;
  color: var(--color-text-muted);
  font-size: 14px;
}

.agreement-box::-webkit-scrollbar {
  width: 6px;
}

.agreement-box::-webkit-scrollbar-track {
  background: var(--color-bg-muted);
  border-radius: 3px;
}

.agreement-box::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 3px;
}

.agreement-box h4 {
  font-size: 16px;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  font-weight: 600;
}

.agreement-box p {
  margin-bottom: var(--space-sm);
}

/* ==================== 页脚（深色优雅） ==================== */
footer {
  background: linear-gradient(135deg, #0a2540 0%, #0d4f5c 50%, #06303a 100%);
  color: rgba(255, 255, 255, 0.85);
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-md);
  position: relative;
  border-top: 1px solid rgba(212, 165, 116, 0.2);
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}

.footer-content p {
  margin: var(--space-sm) 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 1px;
}

.footer-content a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 13px;
  transition: color var(--transition-base);
  display: inline-block;
  position: relative;
  padding: 0 4px;
}

.footer-content a:hover {
  color: var(--color-accent-light);
}

.footer-divider {
  display: inline-block;
  margin: 0 12px;
  color: rgba(255, 255, 255, 0.3);
}

/* ==================== 隐藏文件输入 ==================== */
.file-input-hidden {
  display: none;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1200px) {
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 992px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .product-detail-header {
    flex-direction: column;
    gap: var(--space-md);
  }
  .product-detail-image {
    flex: 1;
  }
  .navbar-nav {
    display: none;
  }
}

@media (max-width: 600px) {
  .products-grid {
    grid-template-columns: 1fr;
  }
  .banner-placeholder h1 {
    font-size: 32px;
  }
  .banner-placeholder p {
    font-size: 12px;
    letter-spacing: 4px;
  }
}

/* ==================== 工具类 ==================== */
.text-center {
  text-align: center;
}

.mt-20 {
  margin-top: 20px;
}

.mb-20 {
  margin-bottom: 20px;
}

/* ==================== 动画关键帧 ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-card {
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.product-card:nth-child(1) { animation-delay: 0.05s; }
.product-card:nth-child(2) { animation-delay: 0.1s; }
.product-card:nth-child(3) { animation-delay: 0.15s; }
.product-card:nth-child(4) { animation-delay: 0.2s; }
.product-card:nth-child(5) { animation-delay: 0.25s; }
.product-card:nth-child(6) { animation-delay: 0.3s; }