/* ===== 变量：统一导航栏绿色 ===== */
:root {
  --nav-color: #6B8E81;
  --nav-dark: #4a665c;
  --nav-light: #8ab3a5;
  --accent: #ff6b35;
  --text-main: #2c3e50;
  --text-sub: #5a6c7d;
  --text-light: #8898aa;
  --bg-page: #f4f7f6;
  --bg-card: #ffffff;
  --border: #e8ecef;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.35s ease;
}

body { background: var(--bg-page); }

/* ===== Banner轮播 ===== */
.page-banner { position: relative; }
.page-banner .carousel-inner { overflow: hidden; }
.page-banner .item { position: relative; }
.page-banner .item img {
  width: 100%;
  display: block;
}
.page-banner .carousel-caption {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  bottom: auto;
  width: 90%;
  max-width: 900px;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
  padding: 20px 25px;
  background: rgba(255,255,255,0.85);
  border-radius: 8px;
}
.page-banner .carousel-caption h2 {
  color: #6B8E81;
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 10px;
}
.page-banner .carousel-caption p {
  color: #6B8E81;
  font-size: 18px;
  margin: 0;
}
.page-banner .carousel-indicators li {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin: 0 5px;
  background: rgba(255,255,255,0.6);
  border: 1px solid #6B8E81;
  transition: var(--transition);
}
.page-banner .carousel-indicators li.active {
  background: #6B8E81;
  transform: scale(1.2);
}
.page-banner .carousel-control {
  width: 50px;
  height: 50px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(107,142,129,0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
}
.page-banner:hover .carousel-control { opacity: 1; }
.page-banner .carousel-control:hover { background: #6B8E81; }
.page-banner .carousel-control .glyphicon {
  font-size: 20px;
  color: #fff;
}

@media (max-width: 768px) {
  .page-banner .carousel-caption h2 { font-size: 18px; }
  .page-banner .carousel-caption p { font-size: 14px; }
  .page-banner .carousel-control { display: none !important; }
}

/* ===== 左侧边栏 ===== */
.sidebar-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  border: 1px solid var(--border);
  transition: var(--transition);
}
.sidebar-card:hover { box-shadow: var(--shadow-md); }

.sidebar-header {
  background: linear-gradient(135deg, #6B8E81 0%, #4a665c 100%);
  color: #fff;
  padding: 16px 20px;
  position: relative;
  cursor: pointer;
}
.sidebar-header h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-header h3 i { font-size: 14px; }
.sidebar-header .toggle-icon {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,0.8);
  font-size: 12px;
  transition: var(--transition);
}
.sidebar-header.active .toggle-icon {
  transform: translateY(-50%) rotate(180deg);
}

.sidebar-body { padding: 8px 0; }

.nav-item {
  display: block;
  padding: 12px 20px;
  color: var(--text-sub);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: var(--transition);
  font-size: 14px;
}
.nav-item:hover {
  background: rgba(107,142,129,0.06);
  color: #6B8E81;
  border-left-color: #6B8E81;
  padding-left: 25px;
  text-decoration: none;
}
.nav-item.active {
  background: rgba(107,142,129,0.1);
  color: #6B8E81;
  border-left-color: #6B8E81;
  font-weight: 600;
}
.nav-item .nav-icon {
  font-size: 10px;
  color: #6B8E81;
  margin-right: 8px;
}

/* ===== 左侧轮播 ===== */
.sidebar-swiper { padding: 15px; }
.sidebar-swiper .swiper-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.sidebar-swiper .swiper-slide a {
  display: block;
  text-decoration: none;
  color: inherit;
}
.sidebar-swiper .swiper-slide .slide-img {
  position: relative;
  padding-top: 65%;
  overflow: hidden;
  border-radius: var(--radius-sm);
}
.sidebar-swiper .swiper-slide .slide-img .bg-img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s ease;
}
.sidebar-swiper .swiper-slide:hover .slide-img .bg-img {
  transform: scale(1.1);
}
.sidebar-swiper .swiper-slide .slide-title {
  padding: 10px 5px 5px;
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}
.sidebar-swiper .swiper-slide:hover .slide-title {
  color: #6B8E81;
}
.sidebar-swiper .swiper-pagination {
  position: relative;
  bottom: 0;
  margin-top: 10px;
}
.sidebar-swiper .swiper-pagination-bullet {
  width: 6px;
  height: 6px;
  background: #ddd;
  opacity: 1;
}
.sidebar-swiper .swiper-pagination-bullet-active {
  background: #6B8E81;
  width: 16px;
  border-radius: 3px;
}

/* ===== 联系卡片 ===== */
.contact-phone {
  text-align: center;
  padding: 20px;
  border-bottom: 1px dashed var(--border);
  margin-bottom: 15px;
}
.contact-phone p {
  color: var(--text-light);
  font-size: 11px;
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.contact-phone h4 {
  font-size: 22px;
  font-weight: 700;
  margin: 0;
}
.contact-phone h4 a {
  color: var(--accent);
  text-decoration: none;
}
.contact-phone h4 a:hover { color: #e55a2b; }

.contact-info p {
  color: var(--text-sub);
  font-size: 13px;
  line-height: 2.2;
  margin: 0;
  padding: 0 20px;
}
.contact-info p strong {
  color: var(--text-main);
  font-weight: 500;
}

.btn-quote {
  display: block;
  margin: 15px 20px 20px;
  padding: 12px;
  background: linear-gradient(135deg, #6B8E81 0%, #4a665c 100%);
  color: #fff;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  border: none;
}
.btn-quote:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(107,142,129,0.3);
  color: #fff;
  text-decoration: none;
}

/* ===== 右侧文章卡片 ===== */
.article-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}
.article-card:hover { box-shadow: var(--shadow-md); }

.article-header {
  padding: 35px 40px 25px;
  background: linear-gradient(180deg, rgba(107,142,129,0.04) 0%, transparent 100%);
  border-bottom: 1px solid var(--border);
}

.article-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
  margin: 0 0 18px 0;
}

/* 面包屑 */
.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 15px;
  flex-wrap: wrap;
}
.article-breadcrumb a {
  color: #6B8E81;
  text-decoration: none;
  transition: var(--transition);
}
.article-breadcrumb a:hover {
  color: #4a665c;
  text-decoration: underline;
}
.article-breadcrumb .sep { color: #ccc; }
.article-breadcrumb .current { color: var(--text-light); }

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--text-light);
  font-size: 13px;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta span::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  background: #6B8E81;
  border-radius: 50%;
}

.article-hero-img {
  overflow: hidden;
  position: relative;
}
.article-hero-img img {
  width: 100%;
  display: block;
  transition: var(--transition);
}
.article-card:hover .article-hero-img img {
  transform: scale(1.02);
}

.article-content {
  padding: 35px 40px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-sub);
}
.article-content p { margin-bottom: 20px; }
.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--text-main);
  margin: 30px 0 15px;
  font-weight: 600;
}
.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 20px; }
.article-content h4 { font-size: 18px; }
.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}
.article-content ul,
.article-content ol {
  padding-left: 25px;
  margin-bottom: 20px;
}
.article-content ul li,
.article-content ol li {
  margin-bottom: 8px;
  line-height: 1.8;
}
.article-content blockquote {
  border-left: 4px solid #6B8E81;
  background: rgba(107,142,129,0.04);
  padding: 20px 25px;
  margin: 25px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--text-sub);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.article-content table th {
  background: #6B8E81;
  color: #fff;
  padding: 12px 15px;
  text-align: left;
  font-weight: 500;
}
.article-content table td {
  padding: 12px 15px;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.article-content table tr:nth-child(even) td { background: #f8faf9; }

/* 本页地址 */
.page-url-box {
  padding: 0 40px;
  margin-bottom: 20px;
}
.page-url-box p {
  background: #f8faf9;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-light);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.page-url-box p strong {
  color: var(--text-sub);
  font-weight: 500;
}
#pageAddress {
  color: #6B8E81;
  font-family: monospace;
  font-size: 12px;
}

/* CTA */
.cta-section {
  padding: 0 40px 35px;
}
.cta-box {
  background: linear-gradient(135deg, #6B8E81 0%, #4a665c 100%);
  border-radius: var(--radius);
  padding: 40px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(107,142,129,0.3);
}
.cta-box::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}
.cta-box::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.cta-box h3 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-box p {
  font-size: 15px;
  margin-bottom: 25px;
  opacity: 0.9;
  position: relative;
  z-index: 1;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}
.cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.cta-btn {
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 50px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  cursor: pointer;
}
.cta-btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(255,107,53,0.3);
}
.cta-btn-primary:hover {
  background: #e55a2b;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(255,107,53,0.4);
  color: #fff;
  text-decoration: none;
}
.cta-btn-secondary {
  background: rgba(255,255,255,0.2);
  color: #fff;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.3);
}
.cta-btn-secondary:hover {
  background: rgba(255,255,255,0.3);
  transform: translateY(-3px);
  color: #fff;
  text-decoration: none;
}

/* 上下篇 */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 25px 40px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(107,142,129,0.02) 0%, transparent 100%);
}
.article-nav-item {
  color: var(--text-light);
  font-size: 13px;
}
.article-nav-item a {
  color: var(--text-sub);
  text-decoration: none;
  display: block;
  margin-top: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  line-height: 1.5;
}
.article-nav-item a:hover {
  color: #6B8E81;
  text-decoration: none;
}
.article-nav-prev a::before { content: "← "; color: #6B8E81; }
.article-nav-next { text-align: right; }
.article-nav-next a::after { content: " →"; color: #6B8E81; }

/* 相关推荐 */
.related-section {
  padding: 30px 40px 40px;
  border-top: 1px solid var(--border);
}
.related-section h4 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 25px;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}
.related-section h4::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 22px;
  background: linear-gradient(180deg, #6B8E81 0%, #4a665c 100%);
  border-radius: 2px;
}
.related-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.related-grid li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: #f8faf9;
  border-radius: var(--radius-sm);
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
  border: 1px solid transparent;
}
.related-grid li a::before {
  content: "›";
  color: #6B8E81;
  font-weight: bold;
  font-size: 18px;
  line-height: 1;
  flex-shrink: 0;
}
.related-grid li a:hover {
  background: #fff;
  border-color: #6B8E81;
  color: #6B8E81;
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .page-banner .carousel-caption h2 { font-size: 26px; }
  .page-banner .carousel-caption p { font-size: 16px; }
  .article-header { padding: 25px 30px 20px; }
  .article-title { font-size: 26px; }
  .article-content { padding: 25px 30px; }
  .cta-section { padding: 0 30px 25px; }
  .cta-box { padding: 30px; }
  .article-nav { padding: 20px 30px; }
  .related-section { padding: 25px 30px 30px; }
  .page-url-box { padding: 0 30px; }
}

@media (max-width: 768px) {
  .page-banner .carousel-caption { padding: 15px 20px; width: 95%; }
  .page-banner .carousel-caption h2 { font-size: 18px; }
  .page-banner .carousel-caption p { font-size: 14px; }
  .page-banner .carousel-control { display: none !important; }
  .neiye { padding: 15px 0 40px; }
  .article-header { padding: 20px 20px 15px; }
  .article-title { font-size: 22px; }
  .article-breadcrumb { font-size: 12px; }
  .article-meta { gap: 10px; font-size: 12px; }
  .article-content { padding: 20px; font-size: 15px; }
  .article-content h2 { font-size: 20px; }
  .article-content h3 { font-size: 18px; }
  .cta-section { padding: 0 20px 20px; }
  .cta-box { padding: 25px 20px; }
  .cta-box h3 { font-size: 20px; }
  .cta-buttons { flex-direction: column; }
  .cta-btn { width: 100%; justify-content: center; }
  .article-nav { grid-template-columns: 1fr; gap: 15px; padding: 20px; }
  .article-nav-next { text-align: left; }
  .related-section { padding: 20px; }
  .related-grid { grid-template-columns: 1fr; }
  .page-url-box { padding: 0 20px; }
  .sidebar-card { margin-bottom: 15px; }
}

@media (max-width: 480px) {
  .article-title { font-size: 20px; }
  .cta-box h3 { font-size: 18px; }
  .cta-box p { font-size: 13px; }
}