/* ============================================
   农村自建房网站 - 全局样式
   配色方案：自然、温暖、专业
   主色：深绿 #2d5a27
   辅色：木色 #a0714f
   强调：金色 #c4956a
   底色：暖白 #f7f3ee
   ============================================ */

/* === 基础重置与全局设置 === */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2d5a27;
  --primary-dark: #1e3d1a;
  --primary-light: #4a7a44;
  --secondary: #a0714f;
  --accent: #c4956a;
  --accent-light: #e8d5c0;
  --bg-warm: #f7f3ee;
  --bg-white: #ffffff;
  --text-dark: #2c2c2c;
  --text-mid: #666666;
  --text-light: #999999;
  --border: #e8e0d8;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
  --header-height: 72px;
}

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

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
  font-weight: 700;
}

.section-title p {
  font-size: 1.05rem;
  color: var(--text-mid);
  max-width: 600px;
  margin: 0 auto;
}

.section-divider {
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 0 auto 16px;
  border-radius: 2px;
}

/* === 按钮样式 === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(45, 90, 39, 0.35);
}

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

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

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--secondary);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196, 149, 106, 0.35);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.9rem;
}

/* === 头部导航 === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-dark);
}

.header-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav a {
  font-size: 0.95rem;
  color: var(--text-mid);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  border-radius: 1px;
}

.header-nav a:hover,
.header-nav a.active {
  color: var(--primary);
}

.header-nav a:hover::after,
.header-nav a.active::after {
  width: 100%;
}

.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 1rem !important;
  transition: var(--transition);
  white-space: nowrap;
}

.header-phone:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.header-phone::after {
  display: none !important;
}

/* === 移动端菜单按钮 === */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.menu-toggle span {
  width: 26px;
  height: 2.5px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* === 移动端侧滑菜单 === */
.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.show {
  opacity: 1;
}

/* === 底部 === */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-about h3 {
  font-size: 1.3rem;
  margin-bottom: 16px;
  color: #fff;
}

.footer-about p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-contact h4 {
  font-size: 1.05rem;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links ul li {
  margin-bottom: 10px;
}

.footer-links ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-links ul li a:hover {
  color: var(--accent);
}

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-contact .phone-big {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  margin: 12px 0;
}

.footer-qr {
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* === 页面横幅 === */
.page-banner {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  text-align: center;
}

.page-banner h1 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.page-banner p {
  font-size: 1.1rem;
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto;
}

/* ============ 首页 ============ */

/* === Hero 横幅 === */
.hero {
  padding: calc(var(--header-height) + 40px) 0 80px;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
  color: #fff;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='200' height='200' viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M100 10L190 100L100 190L10 100Z' fill='none' stroke='rgba(255,255,255,0.03)' stroke-width='2'/%3E%3C/svg%3E") repeat;
  opacity: 0.5;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.8rem;
  line-height: 1.2;
  margin-bottom: 20px;
  font-weight: 800;
}

.hero-content .highlight {
  color: var(--accent);
}

.hero-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-buttons .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
}

.hero-buttons .btn-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent);
}

.hero-stat .label {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 4px;
}

/* === 核心卖点 === */
.features {
  background: var(--bg-warm);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--bg-white);
  padding: 36px 28px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.feature-card .icon {
  width: 64px;
  height: 64px;
  background: var(--accent-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.6rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--primary-dark);
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-mid);
  line-height: 1.7;
}

/* === 精选案例 === */
.featured-cases {
  background: var(--bg-white);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  background: var(--bg-white);
  border: 1px solid var(--border);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.case-card .case-image {
  width: 100%;
  height: 240px;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  font-size: 0.9rem;
  overflow: hidden;
}

.case-card .case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-card .case-info {
  padding: 20px;
}

.case-card .case-info h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--primary-dark);
}

.case-card .case-info .case-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.case-card .case-info .case-tags span {
  font-size: 0.78rem;
  padding: 3px 10px;
  background: var(--accent-light);
  border-radius: 20px;
  color: var(--secondary);
}

.case-card .case-info .case-desc {
  font-size: 0.85rem;
  color: var(--text-mid);
  line-height: 1.6;
}

.cases-more {
  text-align: center;
  margin-top: 40px;
}

/* === 服务流程 === */
.process {
  background: var(--bg-warm);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-num {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 16px;
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--primary-dark);
}

.process-step p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* === CTA 区域 === */
.cta {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.1rem;
  opacity: 0.85;
  margin-bottom: 32px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* === 客户评价 === */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-warm);
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.testimonial-card .stars {
  color: #f0b429;
  font-size: 1rem;
  margin-bottom: 12px;
}

.testimonial-card blockquote {
  font-size: 0.92rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card .author .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--secondary);
  font-size: 1.1rem;
}

.testimonial-card .author .name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.testimonial-card .author .location {
  font-size: 0.82rem;
  color: var(--text-light);
}

/* ============ 关于我们 ============ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-intro .about-image {
  width: 100%;
  height: 400px;
  background: var(--accent-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
}

.about-intro .about-text h2 {
  font-size: 1.8rem;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.about-intro .about-text p {
  font-size: 1rem;
  color: var(--text-mid);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.value-item {
  padding: 24px;
  background: var(--bg-warm);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.value-item h3 {
  font-size: 1rem;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.value-item p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
}

/* ============ 作品案例页面 ============ */
.case-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 24px;
  border: 2px solid var(--border);
  border-radius: 30px;
  background: var(--bg-white);
  color: var(--text-mid);
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.cases-full-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ============ 服务项目页面 ============ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  background: var(--bg-white);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--accent);
}

.service-card .icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.2rem;
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.92rem;
  color: var(--text-mid);
  line-height: 1.7;
  margin-bottom: 16px;
}

.service-card ul {
  padding: 0;
}

.service-card ul li {
  font-size: 0.88rem;
  color: var(--text-mid);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.service-card ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* ============ 建房知识页面 ============ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.blog-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
  background: var(--bg-white);
}

.blog-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.blog-card .blog-image {
  width: 100%;
  height: 200px;
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-mid);
  font-size: 0.85rem;
  overflow: hidden;
}

.blog-card .blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-card .blog-body {
  padding: 20px;
}

.blog-card .blog-body .blog-date {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.blog-card .blog-body h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--primary-dark);
  line-height: 1.4;
}

.blog-card .blog-body p {
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.6;
  margin-bottom: 14px;
}

.blog-card .blog-body .read-more {
  font-size: 0.88rem;
  color: var(--primary);
  font-weight: 600;
}

.blog-card .blog-body .read-more:hover {
  color: var(--primary-dark);
}

/* ============ 联系我们页面 ============ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-info h3 {
  font-size: 1.4rem;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.contact-info .info-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-info .info-item .ci-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--accent-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.contact-info .info-item .ci-text h4 {
  font-size: 0.92rem;
  color: var(--text-dark);
  margin-bottom: 2px;
}

.contact-info .info-item .ci-text p {
  font-size: 0.92rem;
  color: var(--text-mid);
}

.contact-info .info-item .ci-text .phone-lg {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.contact-form {
  background: var(--bg-warm);
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.contact-form h3 {
  font-size: 1.3rem;
  color: var(--primary-dark);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-white);
  color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45, 90, 39, 0.1);
}

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

/* ============ 页面内容区通用 ============ */
.page-section {
  padding: 80px 0;
}

/* ============ 博文详情页 ============ */
.article {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.article-header {
  margin-bottom: 32px;
}

.article-header .article-meta {
  font-size: 0.88rem;
  color: var(--text-light);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.article-header .article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-header h1 {
  font-size: 2rem;
  color: var(--primary-dark);
  line-height: 1.3;
  margin-bottom: 16px;
}

.article-header .article-summary {
  font-size: 1.05rem;
  color: var(--text-mid);
  line-height: 1.8;
  border-left: 4px solid var(--accent);
  padding-left: 20px;
}

.article-featured-image {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 36px;
  box-shadow: var(--shadow);
}

.article-featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

.article-body {
  font-size: 1rem;
  line-height: 2;
  color: var(--text-dark);
}

.article-body h2 {
  font-size: 1.5rem;
  color: var(--primary-dark);
  margin: 40px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--accent-light);
}

.article-body h3 {
  font-size: 1.2rem;
  color: var(--primary);
  margin: 28px 0 12px;
}

.article-body p {
  margin-bottom: 16px;
}

.article-body ul, .article-body ol {
  margin: 16px 0;
  padding-left: 24px;
}

.article-body ul li, .article-body ol li {
  margin-bottom: 10px;
  position: relative;
}

.article-body ul li::marker {
  color: var(--primary);
}

.article-body ul li strong, .article-body ol li strong {
  color: var(--primary-dark);
}

.article-body .highlight-box {
  background: var(--bg-warm);
  border-left: 4px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.article-body .highlight-box p {
  margin-bottom: 0;
}

.article-body .tip-box {
  background: rgba(45, 90, 39, 0.06);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.article-body .tip-box p {
  margin-bottom: 0;
}

.article-body .warning-box {
  background: rgba(196, 149, 106, 0.1);
  border-left: 4px solid var(--accent);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.92rem;
}

.article-body table th {
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
}

.article-body table td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.article-body table tr:nth-child(even) td {
  background: var(--bg-warm);
}

.article-body table tr:hover td {
  background: var(--accent-light);
}

.article-body .img-wrap {
  margin: 28px 0;
  text-align: center;
}

.article-body .img-wrap img {
  max-width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.article-body .img-wrap .img-caption {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 8px;
}

.article-body .img-inline {
  display: flex;
  gap: 20px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.article-body .img-inline figure {
  flex: 1;
  min-width: 200px;
  margin: 0;
}

.article-body .img-inline figure img {
  width: 100%;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.article-body .img-inline figure figcaption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-light);
  margin-top: 6px;
}

.article-body .step-list {
  counter-reset: step;
  list-style: none;
  padding: 0;
}

.article-body .step-list li {
  counter-increment: step;
  padding: 16px 20px 16px 60px;
  background: var(--bg-warm);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  position: relative;
}

.article-body .step-list li::before {
  content: counter(step);
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.article-body .data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.article-body .data-grid .data-item {
  background: var(--bg-warm);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--border);
}

.article-body .data-grid .data-item .data-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  display: block;
}

.article-body .data-grid .data-item .data-label {
  font-size: 0.85rem;
  color: var(--text-mid);
  margin-top: 4px;
}

.article-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
  gap: 20px;
}

.article-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.article-nav a:hover {
  color: var(--primary-dark);
}

/* ============ 响应式设计 ============ */

/* 平板 */
@media (max-width: 992px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content h1 {
    font-size: 2.2rem;
  }

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

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

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

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

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

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

/* 手机 */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .section {
    padding: 50px 0;
  }

  .page-section {
    padding: 50px 0;
  }

  .section-title h2 {
    font-size: 1.6rem;
  }

  .page-banner {
    padding: 110px 0 40px;
  }

  .page-banner h1 {
    font-size: 1.8rem;
  }

  /* === 移动端导航 === */
  .header-nav {
    display: none;
  }

  .header-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: 280px;
    height: calc(100vh - var(--header-height));
    background: var(--bg-white);
    padding: 24px;
    gap: 8px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    z-index: 999;
    overflow-y: auto;
  }

  .header-nav.mobile-open a {
    padding: 14px 12px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    width: 100%;
  }

  .header-nav.mobile-open a:hover {
    background: var(--bg-warm);
  }

  .header-nav.mobile-open a::after {
    display: none;
  }

  .header-nav.mobile-open .header-phone {
    margin-top: 8px;
    text-align: center;
    justify-content: center;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-menu-overlay.show {
    display: block;
  }

  /* === Hero === */
  .hero {
    padding: calc(var(--header-height) + 20px) 0 50px;
  }

  .hero-content h1 {
    font-size: 1.8rem;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    padding: 20px;
    gap: 12px;
  }

  .hero-stat .number {
    font-size: 1.6rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  /* === 通用网格 === */
  .features-grid,
  .cases-grid,
  .cases-full-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

  .contact-form {
    padding: 24px;
  }

  .service-card {
    padding: 24px;
  }

  .cta h2 {
    font-size: 1.5rem;
  }

  .section-title {
    margin-bottom: 30px;
  }

  .case-filters {
    gap: 8px;
  }

  .filter-btn {
    padding: 6px 16px;
    font-size: 0.82rem;
  }
}

/* 小手机 */
@media (max-width: 400px) {
  .hero-content h1 {
    font-size: 1.5rem;
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px;
  }

  .hero-stat .number {
    font-size: 1.3rem;
  }
}