/*
Theme Name: 万事跨境
Theme URI: https://wanshi-crossborder.com
Author: 万事跨境
Author URI: https://wanshi-crossborder.com
Description: 万事跨境企业官网主题 - 商务可信风格，专为跨境服务、B2B、科技互联网企业设计。支持SEO优化、移动端适配。
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: wanshi-crossborder
Tags: custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, full-width-template, sticky-post, theme-options, two-columns, responsive-layout, business, corporate

色系：海洋蓝 + 浅灰 + 白 + 橙黄高亮
*/

/* ===== CSS 变量 ===== */
:root {
  --color-primary: #1e3a5f;
  --color-primary-dark: #0f172a;
  --color-primary-light: #2563eb;
  --color-accent: #f59e0b;
  --color-accent-hover: #fbbf24;
  --color-gray-light: #f8fafc;
  --color-gray: #e2e8f0;
  --color-gray-dark: #64748b;
  --color-white: #ffffff;
  --color-text: #334155;
  --color-text-light: #64748b;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --container-max: 1200px;
  --header-height: 72px;
  --transition: 0.3s ease;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-white);
}

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

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

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

/* ===== 布局 ===== */
.site-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 页头 ===== */
.site-header {
  background: var(--color-primary);
  color: var(--color-white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.site-branding .site-title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.site-branding .site-title a {
  color: var(--color-white);
}

.site-branding .site-title a:hover {
  color: var(--color-accent);
}

/* 导航菜单 */
.main-navigation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.main-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.main-navigation a {
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
  color: var(--color-accent);
}

/* 语言切换 */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 1rem;
  font-size: 0.9rem;
}

.lang-switcher .lang-link {
  color: rgba(255,255,255,0.9);
}

.lang-switcher .lang-link:hover,
.lang-switcher .lang-link.active {
  color: var(--color-accent);
}

.lang-switcher .lang-sep {
  color: rgba(255,255,255,0.5);
  user-select: none;
}

/* 移动端菜单按钮 */
.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--color-white);
  color: var(--color-white);
  padding: 8px 16px;
  cursor: pointer;
  font-size: 1rem;
  border-radius: 4px;
}

/* ===== 主内容区 ===== */
.site-main {
  min-height: 60vh;
  padding: 40px 0;
}

/* ===== 首页 Hero 区域 ===== */
.hero-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
  padding: 80px 20px 100px;
  text-align: center;
}

.hero-section h1 {
  font-size: 2.5rem;
  margin: 0 0 1rem;
  font-weight: 700;
}

.hero-section .hero-subtitle {
  font-size: 1.25rem;
  opacity: 0.95;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: background var(--transition), transform var(--transition);
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

/* ===== 通用区块样式 ===== */
.section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--color-primary);
  margin: 0 0 0.5rem;
}

.section-title .section-desc {
  color: var(--color-text-light);
  font-size: 1rem;
}

.section-alt {
  background: var(--color-gray-light);
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-primary-dark) !important;
  padding: 12px 28px;
  border-radius: 6px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
}

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

.btn-outline {
  display: inline-block;
  border: 2px solid var(--color-primary);
  color: var(--color-primary) !important;
  padding: 10px 26px;
  border-radius: 6px;
  font-weight: 600;
  transition: all var(--transition);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white) !important;
}

/* ===== 服务卡片 ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-card {
  background: var(--color-white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.service-card h3 {
  color: var(--color-primary);
  margin: 0 0 1rem;
  font-size: 1.25rem;
}

.service-card p {
  margin: 0;
  color: var(--color-text-light);
}

/* ===== 价格方案 ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.pricing-card {
  background: var(--color-white);
  border: 2px solid var(--color-gray);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.2);
}

.pricing-card h3 {
  color: var(--color-primary);
  margin: 0 0 1rem;
}

.pricing-card .price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  text-align: left;
}

.pricing-card li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-gray);
}

.pricing-card li:last-child {
  border-bottom: none;
}

/* ===== 案例/合作伙伴 ===== */
.cases-grid,
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.case-card,
.partner-card {
  background: var(--color-white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.case-card img,
.partner-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.case-card .card-content,
.partner-card .card-content {
  padding: 1.5rem;
}

.case-card h3,
.partner-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--color-primary);
}

/* ===== 团队 ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.team-member {
  text-align: center;
}

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 1rem;
}

.team-member h4 {
  margin: 0 0 0.25rem;
  color: var(--color-primary);
}

.team-member .role {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* ===== 资讯列表 ===== */
.news-list .news-item {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--color-gray);
}

.news-list .news-item:last-child {
  border-bottom: none;
}

.news-list .news-item a {
  font-size: 1.1rem;
  font-weight: 500;
}

.news-list .news-date {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* ===== 联系表单 ===== */
.contact-form {
  max-width: 500px;
  margin: 0 auto;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 1rem;
  border: 1px solid var(--color-gray);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
}

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

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary-light);
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.9);
  padding: 50px 0 30px;
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-grid h4 {
  color: var(--color-white);
  margin: 0 0 1rem;
  font-size: 1rem;
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-grid a {
  color: rgba(255,255,255,0.8);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

/* ===== 文章/页面内容 ===== */
.entry-content {
  max-width: 800px;
  margin: 0 auto;
}

.entry-content h1, .entry-content h2, .entry-content h3 {
  color: var(--color-primary);
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .main-navigation ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .main-navigation ul.active {
    display: flex;
  }

  .main-navigation li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }

  .lang-switcher {
    margin-left: 0;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    justify-content: center;
  }

  .hero-section h1 {
    font-size: 1.75rem;
  }

  .hero-section .hero-subtitle {
    font-size: 1rem;
  }

  .section {
    padding: 40px 0;
  }

  .section-title h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 15px;
  }

  .header-inner .site-title {
    font-size: 1.25rem;
  }
}

@media (max-width: 768px) {
  .services-grid,
  .pricing-grid,
  .cases-grid,
  .partners-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr !important;
  }
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
}