/* ============================================
   斯卡兰（SKALN）润滑油 - 产品详情页样式表
   帝国CMS模板专用
   ============================================ */

/* ---- 变量定义 ---- */
:root {
  --primary: #1a5fb4;
  --primary-light: #2e7dd4;
  --primary-10: #e8f0fe;
  --primary-5: #f0f6fd;
  --background: #f5f7fa;
  --card: #ffffff;
  --foreground: #1f2937;
  --muted-foreground: #6b7280;
  --border: #e5e7eb;
  --border-light: #f0f2f5;
  --warning: #f59e0b;
  --warning-5: #fffbeb;
  --warning-10: #fef3c7;
  --success: #10b981;
  --footer-bg: #1a2b4a;
  --footer-dark: #162440;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

/* ---- 基础重置 ---- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--foreground);
  background: var(--background);
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
svg { width: 1em; height: 1em; }

/* ---- 通用容器 ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ============================================
   头部区域
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: #fff;
  border-bottom: 2px solid var(--primary);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
@media (min-width: 768px) {
  .header-inner { height: 72px; }
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-cn {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 1px;
}
.logo-en {
  font-size: 10px;
  color: var(--muted-foreground);
  letter-spacing: 0.2em;
}

/* 主导航 */
.main-nav { display: none; }
@media (min-width: 768px) {
  .main-nav {
    display: flex;
    align-items: center;
    gap: 0;
  }
  .nav-item {
    position: relative;
    padding: 26px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--foreground);
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
    margin-bottom: -2px;
  }
  .nav-item:hover,
  .nav-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
  }
}

/* 右侧操作区 */
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
@media (min-width: 768px) {
  .header-right { gap: 16px; }
}

/* 搜索框 */
.search-box { display: none; }
@media (min-width: 768px) {
  .search-box {
    display: block;
    position: relative;
    width: 176px;
  }
  .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    width: 14px;
    height: 14px;
    transform: translateY(-50%);
    color: var(--muted-foreground);
  }
  .search-input {
    width: 100%;
    height: 32px;
    padding: 0 12px 0 32px;
    border: 1px solid var(--border);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
  }
  .search-input:focus { border-color: var(--primary); }
}
.search-toggle { display: none; }
@media (min-width: 768px) {
  .search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--foreground);
    transition: background 0.2s;
  }
  .search-toggle:hover { background: var(--primary-10); }
}

/* 服务热线 */
.header-phone { display: none; }
@media (min-width: 768px) {
  .header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-left: 12px;
    border-left: 1px solid var(--border);
  }
  .phone-icon {
    width: 16px;
    height: 16px;
    color: var(--primary);
  }
  .phone-text { display: flex; flex-direction: column; line-height: 1.2; }
  .phone-label {
    font-size: 12px;
    color: var(--muted-foreground);
  }
  .phone-number {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
  }
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--foreground);
}
@media (min-width: 768px) {
  .mobile-menu-btn { display: none; }
}

/* 移动端抽屉 */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -288px;
  width: 288px;
  height: 100%;
  background: #fff;
  z-index: 100;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
}
.mobile-drawer.open { right: 0; }
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.drawer-close {
  width: 32px;
  height: 32px;
  color: #fff;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drawer-nav {
  flex: 1;
  overflow-y: auto;
}
.drawer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(31, 41, 55, 0.8);
  border-bottom: 1px solid rgba(229, 231, 235, 0.6);
  transition: background 0.2s, color 0.2s;
}
.drawer-item:hover { background: var(--primary-5); }
.drawer-item.active {
  background: var(--primary-10);
  color: var(--primary);
}
.drawer-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid var(--border);
  background: var(--primary-5);
  font-size: 14px;
}
.drawer-phone-label {
  display: block;
  font-size: 12px;
  color: var(--muted-foreground);
}
.drawer-phone {
  font-weight: 700;
  color: var(--primary);
}
.drawer-mask {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}
.drawer-mask.show { opacity: 1; visibility: visible; }

/* 面包屑 */
.breadcrumb-wrap {
  width: 100%;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--muted-foreground);
  padding: 10px 0;
}
.breadcrumb-link {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--muted-foreground);
  transition: color 0.2s;
}
.breadcrumb-link:hover { color: var(--primary); }
.breadcrumb-icon { width: 12px; height: 12px; }
.breadcrumb-sep { color: var(--border); }
.breadcrumb-current { color: rgba(31, 41, 55, 0.7); }

/* ============================================
   中间内容区域（两栏布局 product-layout）
   ============================================ */
.main-content {
  width: 100%;
  padding: 24px 0;
}
@media (min-width: 768px) {
  .main-content { padding: 32px 0 40px; }
}

.product-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 1024px) {
  .product-layout {
    grid-template-columns: 260px 1fr;
    gap: 32px;
  }
}

/* ============================================
   左侧分类栏
   ============================================ */
.sidebar {
  width: 100%;
  order: 2;
}
@media (min-width: 1024px) {
  .sidebar {
    order: 1;
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

/* 分类标题 */
.sidebar-title {
  position: relative;
  overflow: hidden;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  color: #fff;
  padding: 16px 20px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  box-shadow: var(--shadow-sm);
}
.sidebar-deco-1 {
  position: absolute;
  right: -16px;
  top: -16px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}
.sidebar-deco-2 {
  position: absolute;
  right: 24px;
  bottom: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.sidebar-title h3 {
  position: relative;
  font-size: 16px;
  font-weight: 600;
}
.sidebar-title p {
  position: relative;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 2px;
  letter-spacing: 0.1em;
}

/* 分类列表 */
.category-list {
  background: #fff;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.category-list ul { padding: 4px 0; }
.category-list li { list-style: none; }
.cat-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 14px;
  color: rgba(31, 41, 55, 0.8);
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
  cursor: pointer;
}
.cat-item:hover {
  background: var(--primary-5);
  color: var(--primary);
  border-left-color: rgba(26, 95, 180, 0.3);
}
.cat-item.active {
  background: var(--primary-10);
  color: var(--primary);
  font-weight: 600;
  border-left-color: var(--primary);
}
.cat-arrow {
  font-size: 12px;
  transition: transform 0.2s;
}
.cat-item:hover .cat-arrow { transform: translateX(2px); }
.cat-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-left: 2px;
}
.cat-count {
  font-size: 11px;
  color: var(--muted-foreground);
  background: var(--primary-5);
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

/* 咨询热线卡片 */
.consult-card {
  position: relative;
  overflow: hidden;
  margin-top: 20px;
  background: linear-gradient(135deg, var(--primary-5), #fff, var(--primary-10));
  border: 1px solid rgba(26, 95, 180, 0.2);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}
.consult-deco {
  position: absolute;
  right: -24px;
  bottom: -24px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(26, 95, 180, 0.05);
}
.consult-content { position: relative; }
.consult-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.consult-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-10);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.consult-icon svg { width: 16px; height: 16px; }
.consult-head span {
  font-size: 14px;
  font-weight: 600;
  color: var(--foreground);
}
.consult-phone {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
  letter-spacing: -0.5px;
}
.consult-desc {
  font-size: 12px;
  color: var(--muted-foreground);
  margin-bottom: 16px;
}
.consult-btn {
  width: 100%;
  height: 36px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow-sm);
}
.consult-btn:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.consult-btn svg { width: 14px; height: 14px; }

/* ============================================
   右侧主内容区
   ============================================ */
.product-main {
  order: 1;
  min-width: 0;
  background: #fff;
  border: 1px solid rgba(229, 231, 235, 0.7);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .product-main { padding: 32px; }
}

/* ---- 1. 产品标题区 ---- */
.product-title-area { margin-bottom: 24px; }
.product-tags {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 400;
  padding: 3px 10px;
  border-radius: 999px;
}
.tag-primary {
  background: var(--primary-10);
  color: var(--primary);
  border: 1px solid rgba(26, 95, 180, 0.2);
}
.tag-outline {
  background: transparent;
  color: var(--muted-foreground);
  border: 1px solid var(--border);
}
.product-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
@media (min-width: 768px) {
  .product-name { font-size: 30px; }
}
.product-subtitle {
  font-size: 15px;
  color: var(--muted-foreground);
  margin-bottom: 16px;
}
.title-decoration {
  display: flex;
  align-items: center;
  gap: 8px;
}
.deco-line {
  height: 4px;
  border-radius: 999px;
}
.deco-line-1 { width: 48px; background: var(--primary); }
.deco-line-2 { width: 12px; background: rgba(26, 95, 180, 0.3); }
.deco-line-3 { width: 6px; background: rgba(26, 95, 180, 0.1); }

/* ---- 2. 产品展示区 ---- */
.product-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
@media (min-width: 768px) {
  .product-showcase {
    grid-template-columns: 380px 1fr;
    gap: 40px;
  }
}

/* 产品主图 */
.product-image-wrap { position: relative; }
.product-image-glow {
  position: absolute;
  inset: -4px;
  background: linear-gradient(135deg, rgba(26, 95, 180, 0.1), transparent, rgba(26, 95, 180, 0.05));
  border-radius: var(--radius-lg);
  filter: blur(4px);
  z-index: 0;
}
.product-image-box {
  position: relative;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--primary-5), #fff);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 1;
}
.photo-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 10;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}
.product-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.1));
}

/* 产品信息 */
.product-info { display: flex; flex-direction: column; }
.info-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.title-bar {
  width: 4px;
  height: 16px;
  background: var(--primary);
  border-radius: 999px;
}
.product-summary {
  font-size: 14px;
  color: rgba(31, 41, 55, 0.8);
  line-height: 2;
  margin-bottom: 24px;
}

/* 核心参数卡片 */
.core-params {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.param-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: #fff;
  border: 1px solid rgba(229, 231, 235, 0.7);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}
.param-card:hover {
  border-color: rgba(26, 95, 180, 0.3);
  box-shadow: var(--shadow-md);
}
.param-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--primary-10);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.param-icon svg { width: 18px; height: 18px; }
.param-text { min-width: 0; flex: 1; }
.param-label {
  display: block;
  font-size: 12px;
  color: var(--muted-foreground);
  margin-bottom: 2px;
}
.param-value {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--foreground);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* CTA 按钮 */
.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: auto;
  padding-top: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 20px;
  height: 40px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  background: var(--primary-light);
  box-shadow: var(--shadow-lg);
}
.btn-secondary {
  background: #fff;
  color: var(--foreground);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--primary-5);
  border-color: rgba(26, 95, 180, 0.3);
  color: var(--primary);
}

/* ---- 通用 section ---- */
.content-section { margin-top: 56px; }
.section-title { margin-bottom: 24px; }
.section-title h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 12px;
}
@media (min-width: 768px) {
  .section-title h2 { font-size: 20px; }
}
.title-dot {
  position: relative;
  display: flex;
  width: 6px;
  height: 20px;
  align-items: center;
}
.dot-main {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--primary);
  border-radius: 999px;
}
.dot-sub {
  position: absolute;
  right: -4px;
  top: 50%;
  width: 8px;
  height: 8px;
  transform: translateY(-50%);
  background: rgba(26, 95, 180, 0.3);
  border-radius: 50%;
}
.section-title p {
  font-size: 13px;
  color: var(--muted-foreground);
  margin-left: 18px;
}

/* ---- 3. 产品概述 ---- */
.overview-content {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid rgba(26, 95, 180, 0.2);
}
.overview-content p {
  font-size: 14px;
  color: rgba(31, 41, 55, 0.8);
  line-height: 2;
  text-indent: 2em;
  margin-bottom: 12px;
}
.overview-content p:last-child { margin-bottom: 0; }

/* ---- 4. 性能特点 ---- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(4, 1fr); }
}
.feature-card {
  padding: 20px;
  background: #fff;
  border: 1px solid rgba(229, 231, 235, 0.7);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}
.feature-card:hover {
  border-color: rgba(26, 95, 180, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-10), var(--primary-5));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}
.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
}
.feature-icon svg { width: 20px; height: 20px; }
.feature-card h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: 6px;
}
.feature-card p {
  font-size: 12px;
  color: var(--muted-foreground);
  line-height: 1.6;
}

/* ---- 5. 技术参数表 ---- */
.table-wrap {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  background: #fff;
}
.table-scroll { width: 100%; overflow-x: auto; }
.tech-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.tech-table thead {
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}
.tech-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
.tech-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.tech-table tbody tr.odd { background: var(--primary-5); }
.tech-table tbody tr.even { background: #fff; }
.tech-table tbody tr:hover { background: var(--primary-10); }
.tech-table td:first-child {
  font-weight: 500;
  color: var(--foreground);
}
.tech-table td:nth-child(2) {
  color: rgba(31, 41, 55, 0.8);
}
.tech-table td:nth-child(3) {
  color: var(--muted-foreground);
}

/* ---- 6. 应用领域 ---- */
.applications-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
@media (min-width: 768px) {
  .applications-grid { grid-template-columns: repeat(3, 1fr); }
}
.app-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: #fff;
  border: 1px solid rgba(229, 231, 235, 0.7);
  border-radius: var(--radius-lg);
  transition: all 0.2s;
}
.app-card:hover {
  border-color: rgba(26, 95, 180, 0.3);
  box-shadow: var(--shadow-md);
}
.app-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-10), var(--primary-5));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}
.app-card:hover .app-icon { transform: scale(1.1); }
.app-icon svg { width: 20px; height: 20px; }
.app-card span {
  font-size: 14px;
  font-weight: 500;
  color: var(--foreground);
}

/* ---- 7. 使用注意事项 ---- */
.cautions-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), #fff, rgba(245, 158, 11, 0.05));
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.cautions-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.caution-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  display: flex;
  align-items: center;
  justify-content: center;
}
.caution-icon svg { width: 20px; height: 20px; }
.cautions-head h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--foreground);
}
.cautions-head p {
  font-size: 12px;
  color: var(--muted-foreground);
  margin-top: 2px;
}
.cautions-list { list-style: none; }
.cautions-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 14px;
  color: rgba(31, 41, 55, 0.8);
  line-height: 1.9;
}
.cautions-list li:last-child { margin-bottom: 0; }
.caution-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* ---- 8. 产品包装规格 ---- */
.packages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .packages-grid { grid-template-columns: repeat(3, 1fr); }
}
.package-card {
  position: relative;
  padding: 24px;
  text-align: center;
  background: #fff;
  border: 1px solid rgba(229, 231, 235, 0.7);
  border-radius: var(--radius-lg);
  transition: all 0.3s ease;
}
.package-card:hover {
  border-color: rgba(26, 95, 180, 0.2);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.package-card.featured {
  background: linear-gradient(135deg, var(--primary-5), #fff, var(--primary-10));
  border-color: rgba(26, 95, 180, 0.3);
  box-shadow: var(--shadow-md);
}
.package-card.featured:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.featured-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 12px;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.package-icon {
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.package-card:not(.featured) .package-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary-10);
  color: var(--primary);
}
.package-card.featured .package-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: var(--shadow-md);
}
.package-icon svg { width: 24px; height: 24px; }
.package-spec {
  font-size: 20px;
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: 4px;
}
.package-card.featured .package-spec {
  font-size: 24px;
  color: var(--primary);
}
.package-desc {
  font-size: 12px;
  color: var(--muted-foreground);
  line-height: 1.6;
}
.package-stock {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: var(--success);
}
.package-stock svg { width: 14px; height: 14px; }

/* ============================================
   底部区域
   ============================================ */
.site-footer {
  width: 100%;
  background: var(--footer-bg);
  color: #fff;
  margin-top: 40px;
}

/* 友情链接 */
.footer-links {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  background: var(--footer-dark);
}
.friend-links {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0 16px;
  padding: 16px 0;
  font-size: 12px;
}
.links-label {
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 500;
}
.links-divider { color: rgba(255, 255, 255, 0.2); margin-right: 16px; }
.friend-links a {
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}
.friend-links a:hover { color: #fff; }

/* 主 Footer */
.footer-main { padding: 32px 0; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 32px;
  }
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s;
}
.footer-col a:hover { color: #fff; }

.footer-brand { grid-column: span 2; }
@media (min-width: 768px) {
  .footer-brand { grid-column: span 1; }
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.footer-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.footer-logo-text { line-height: 1.2; }
.footer-logo-cn {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}
.footer-logo-en {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.2em;
}
.footer-intro {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 16px;
}
.footer-contact { display: flex; flex-direction: column; gap: 8px; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}
.contact-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--primary);
}

/* 版权信息 */
.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  background: var(--footer-dark);
}
.copyright-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 16px 0;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
}
@media (min-width: 768px) {
  .copyright-inner {
    flex-direction: row;
    gap: 16px;
  }
}
.copyright-links {
  display: flex;
  align-items: center;
  gap: 16px;
}
.copyright-links a {
  color: rgba(255, 255, 255, 0.4);
  transition: color 0.2s;
}
.copyright-links a:hover { color: rgba(255, 255, 255, 0.7); }