/* ==========================================================================
   公司官网首页样式
   ========================================================================== */

/* ---------- Hero ---------- */
.hero {
  position: relative;
  width: 100%;
  aspect-ratio: 3909 / 2547;
  display: flex;
  align-items: center;
  background: url("../img/hero-bg-sm.jpg") center center / cover no-repeat;
  background-color: #001a0d;
}
/* 平板：加载中尺寸图 */
@media (min-width: 481px) and (max-width: 1024px) {
  .hero {
    background: url("../img/hero-bg-md.jpg") center center / cover no-repeat;
  }
}
/* PC端：加载1920px压缩版（287KB，清晰度足够） */
@media (min-width: 1025px) {
  .hero {
    background: url("../img/hero-bg-lg.jpg") center center / cover no-repeat;
  }
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(0, 25, 12, 0.65) 0%, rgba(0, 40, 20, 0.35) 50%, rgba(0, 60, 30, 0.12) 100%);
}
.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cpath fill='%23ffffff' fill-opacity='0.04' d='M40 0l40 40-40 40L0 40z'/%3E%3C/svg%3E");
  opacity: 0.5;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg);
  text-align: center;
  color: #fff;
}
.hero-tag {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  background: rgba(201, 169, 97, 0.15);
  border: 1px solid rgba(201, 169, 97, 0.3);
  border-radius: var(--radius-full);
  padding: 6px 18px;
  margin-bottom: var(--space-md);
}
.hero-title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: var(--space-sm);
}
.hero-subtitle {
  font-size: clamp(0.95rem, 2.5vw, 1.2rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 700px;
  margin: 0 auto var(--space-md);
  line-height: 1.7;
}
.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}
.hero-cta .btn { font-size: 1rem; }
.hero-cta .btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(201, 169, 97, 0.4);
}
.hero-cta .btn-primary:hover { background: var(--color-accent-dark); }
.hero-cta .btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}
.hero-cta .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* ---------- Stats (hero overlay) ---------- */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-stats .stat-item { text-align: center; }
.hero-stats .stat-num {
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 4px;
}
.hero-stats .stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
}
@media (max-width: 480px) {
  .hero-stats { grid-template-columns: 1fr; gap: var(--space-sm); }
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  scroll-margin-top: calc(var(--nav-height) + 20px);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}
.service-icon svg { width: 26px; height: 26px; }
.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.service-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .services-grid { grid-template-columns: 1fr; }
}

/* ---------- Advantages ---------- */
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.advantage-card {
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.advantage-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.advantage-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 1.5rem;
  font-weight: 700;
}
.advantage-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.advantage-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .advantage-grid { grid-template-columns: 1fr; }
}

/* ---------- About Section ---------- */
.about-section {
  background: #fff;
}
.about-intro {
  max-width: 820px;
  margin: 0 auto var(--space-xl);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text-secondary);
  text-align: center;
}
.about-core-title {
  text-align: center;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}
.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.about-value-card {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: var(--color-bg-alt);
  border-top: 3px solid var(--color-accent);
  transition: all var(--transition-base);
}
.about-value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.about-value-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}
.about-value-card p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}
@media (max-width: 768px) {
  .about-values { grid-template-columns: 1fr; }
}

/* ---------- Services 2x2 Grid ---------- */
.services-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}
.services-grid-2col .service-card {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}
.services-grid-2col .service-icon {
  flex-shrink: 0;
  margin-bottom: 0;
}
@media (max-width: 480px) {
  .services-grid-2col { grid-template-columns: 1fr; }
}

/* ---------- Clients Section ---------- */
.clients-section {
  background: var(--color-bg-alt);
}
.clients-big-num {
  text-align: center;
  margin-bottom: var(--space-xl);
}
.clients-big-num .num {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.clients-big-num .num-label {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.client-cat-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  text-align: center;
  transition: all var(--transition-base);
}
.client-cat-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.client-cat-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.client-cat-card p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
@media (max-width: 768px) {
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .clients-grid { grid-template-columns: 1fr; }
}

/* ---------- Partners Section ---------- */
.partners-section {
  background: #fff;
}
.partners-logo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
.partner-logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  transition: all var(--transition-base);
}
.partner-logo-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.partner-logo-item img {
  max-width: 180px;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
}
.partner-logo-item span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}
@media (max-width: 768px) {
  .partners-logo-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .partners-logo-grid { grid-template-columns: 1fr; }
}

/* ========== 微信弹窗 ========== */
.wechat-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}
.wechat-modal-overlay.show {
  opacity: 1;
  pointer-events: auto;
}
.wechat-modal-box {
  position: relative;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-xl) var(--space-xl) var(--space-lg);
  max-width: 360px;
  width: calc(100% - 48px);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform var(--transition-base);
}
.wechat-modal-overlay.show .wechat-modal-box {
  transform: scale(1);
}
.wechat-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: 4px 8px;
  transition: color var(--transition-fast);
}
.wechat-modal-close:hover { color: var(--color-text); }
.wechat-modal-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
}
.wechat-modal-qr {
  margin-bottom: var(--space-lg);
}
.wechat-modal-qr img {
  width: 220px;
  height: 220px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}
.wechat-modal-qr .wechat-modal-search-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100px;
  height: 100px;
  margin: 0 auto;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.wechat-modal-tip {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
/* 微信内搜索引导 */
.wechat-search-guide {
  text-align: left;
  padding: 0 8px;
}
.wechat-search-guide .guide-step {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.5;
}
.wechat-search-guide .step-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.wechat-search-guide .copy-btn {
  display: block;
  width: 100%;
  padding: 12px;
  margin: 8px 0 4px;
  background: #07c160;
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.wechat-search-guide .copy-btn:hover { background: #06a551; }
.wechat-search-guide .copy-tip {
  font-size: 0.85rem;
  color: #07c160;
  text-align: center;
  margin-bottom: 12px;
  min-height: 1.2em;
}
@media (max-width: 480px) {
  .wechat-modal-box { padding: var(--space-lg) var(--space-lg) var(--space-md); }
  .wechat-modal-qr img { width: 180px; height: 180px; }
}
/* 地图选择弹窗选项 */
.map-modal-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.map-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}
.map-option:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateX(4px);
}
.map-option-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}
.map-option:hover .map-option-name { color: #fff; }
.map-option-desc {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.map-option:hover .map-option-desc { color: rgba(255,255,255,0.8); }
.partners-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.partner-badge {
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-alt);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition-base);
}
.partner-badge:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.partners-text {
  text-align: center;
  max-width: 700px;
  margin: var(--space-lg) auto 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.8;
}

/* ---------- Cases Section ---------- */
.cases-section {
  background: var(--color-bg-alt);
}
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.case-card-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--space-lg);
  color: #fff;
}
.case-card-header .case-num {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  opacity: 0.8;
  margin-bottom: 4px;
}
.case-card-header h4 {
  font-size: 1.05rem;
  font-weight: 600;
}
.case-card-body {
  padding: var(--space-lg);
}
.case-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .cases-grid { grid-template-columns: 1fr; }
}

/* ---------- Contact Section ---------- */
.contact-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
}
.contact-section .section-header h2 { color: #fff; }
.contact-section .section-subtitle { color: rgba(255,255,255,0.85); }
.contact-section .section-tag {
  color: var(--color-accent);
  background: rgba(201,169,97,0.15);
  border-color: rgba(201,169,97,0.3);
}
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: 0 auto;
}
.contact-info-card {
  text-align: center;
  padding: var(--space-lg);
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(4px);
}
.contact-info-card--clickable {
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.contact-info-card--clickable:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.3);
  transform: translateY(-2px);
}
/* 地图卡片 - 带背景图 */
.contact-info-card--map {
  position: relative;
  overflow: hidden;
  border-color: rgba(255,255,255,0.3);
}
.contact-info-card--map .map-card-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: url("../img/address-card-bg.png") center center / cover no-repeat;
  opacity: 0.35;
  transition: opacity var(--transition-base);
}
.contact-info-card--map:hover .map-card-bg {
  opacity: 0.5;
}
.contact-info-card--map:hover {
  background: rgba(0,0,0,0.2);
}
.contact-info-card--map .map-card-content {
  position: relative;
  z-index: 1;
}
.contact-info-card--map .map-card-hint {
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-top: 4px;
}
.contact-info-card .info-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(201,169,97,0.2);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
}
.contact-info-card .info-icon svg { width: 24px; height: 24px; }
.contact-info-card .info-label {
  font-size: 0.8rem;
  opacity: 0.7;
  margin-bottom: 4px;
}
.contact-info-card .info-value {
  font-size: 0.95rem;
  font-weight: 600;
}
.contact-info-card a {
  color: #fff !important;
  text-decoration: none;
  display: block;
}
.contact-info-card a:hover {
  color: var(--color-accent) !important;
}
.contact-info-card a .info-value {
  color: #fff !important;
}
.contact-info-card .info-value-sm {
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0.9;
}
.social-links {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}
.social-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 36px;
}
/* 小红书 - 红色品牌色 */
.social-link--xhs {
  background: #ff2442;
  border: 1px solid #ff2442;
}
.social-link--xhs:hover {
  background: #e61e3a;
  border-color: #e61e3a;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 36, 66, 0.4);
}
/* 抖音 - 黑色品牌色 */
.social-link--douyin {
  background: #161823;
  border: 1px solid #2a2c38;
}
.social-link--douyin:hover {
  background: #000;
  border-color: #000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(22, 24, 35, 0.5);
}
/* 微信视频号 - 绿色品牌色 */
.social-link--wechat {
  background: #07c160;
  border: 1px solid #07c160;
}
.social-link--wechat:hover {
  background: #06a551;
  border-color: #06a551;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(7, 193, 96, 0.4);
}
@media (max-width: 768px) {
  .contact-info-grid { grid-template-columns: 1fr; }
}

/* ---------- Process ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-md);
}
.process-step {
  text-align: center;
  position: relative;
}
.process-step .step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 auto var(--space-sm);
  border: 2px solid var(--color-primary);
  position: relative;
  z-index: 1;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 22px;
  left: calc(50% + 26px);
  width: calc(100% - 52px);
  height: 2px;
  background: var(--color-border);
}
.process-step h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.process-step p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}
@media (max-width: 768px) {
  .process-grid { grid-template-columns: 1fr; gap: var(--space-lg); text-align: left; }
  .process-step { display: flex; align-items: flex-start; gap: var(--space-md); padding-left: 8px; }
  .process-step .step-num { margin: 0 auto auto 0; flex-shrink: 0; }
  .process-step h4, .process-step p { text-align: left; }
  .process-step:not(:last-child)::after {
    display: block; top: 44px; left: 30px;
    width: 2px; height: calc(100% - 44px + 16px);
    background: var(--color-border);
  }
}

/* ---------- Chat Section ---------- */
.chat-section {
  background: var(--color-bg-alt);
}
.chat-section .section-header { margin-bottom: var(--space-lg); }
.chat-wrapper {
  display: flex;
  justify-content: center;
  padding: 0 var(--space-md);
}

/* ---------- CTA Banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  color: #fff;
}
.cta-banner h2 {
  font-size: clamp(1.3rem, 3.5vw, 1.8rem);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
}
.cta-banner .btn-primary {
  background: var(--color-accent);
  box-shadow: 0 4px 16px rgba(201, 169, 97, 0.4);
}
.cta-banner .btn-primary:hover { background: var(--color-accent-dark); }

/* ---------- 可展开区域（公司介绍总览） ---------- */
.about-expand {
  margin-top: var(--space-xl);
  text-align: center;
}
.expand-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-base);
}
.expand-trigger:hover { background: #005a2c; }
.expand-trigger.active { background: #005a2c; }
.expand-icon {
  width: 18px; height: 18px;
  transition: transform var(--transition-base);
}
.expand-trigger.active .expand-icon { transform: rotate(180deg); }
.expand-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, margin-top 0.3s ease;
  margin-top: 0;
}
.expand-content.open {
  max-height: 5000px;
  margin-top: var(--space-lg);
}

/* ---------- 总览专属样式 ---------- */
.ov-hero-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--space-xl);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(0,108,53,0.06), rgba(201,169,97,0.08));
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}
.ov-advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.ov-adv-card {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.ov-adv-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.ov-adv-icon {
  width: 52px; height: 52px;
  margin: 0 auto var(--space-sm);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ov-adv-icon svg { width: 26px; height: 26px; }
.ov-adv-card h5 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.ov-adv-card p {
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}
.ov-services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.ov-svc-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition-base);
}
.ov-svc-item:hover {
  background: var(--color-primary-light);
  transform: translateX(2px);
}
.ov-svc-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
}
.ov-svc-item > span:last-child {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}
.ov-banner {
  text-align: center;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}
.ov-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
.ov-stat-item {
  text-align: center;
}
.ov-stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.ov-stat-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}
.ov-stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}
@media (max-width: 768px) {
  .ov-advantages { grid-template-columns: repeat(2, 1fr); }
  .ov-services-grid { grid-template-columns: repeat(2, 1fr); }
  .ov-stats { flex-wrap: wrap; gap: var(--space-md); }
  .ov-stat-divider { display: none; }
}
@media (max-width: 480px) {
  .ov-advantages { grid-template-columns: 1fr; }
  .ov-services-grid { grid-template-columns: 1fr; }
}
/* ---------- 手风琴（服务详情） ---------- */
.accordion-list {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.accordion-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.accordion-item.active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
  color: var(--color-text);
  transition: background var(--transition-base);
}
.accordion-trigger:hover { background: rgba(0,108,53,0.04); }
.accordion-num {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 36px;
}
.accordion-title {
  flex: 1;
  font-weight: 600;
  color: var(--color-primary);
}
.accordion-icon {
  width: 20px; height: 20px;
  color: var(--color-text-secondary);
  transition: transform var(--transition-base);
}
.accordion-item.active .accordion-icon { transform: rotate(180deg); }
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease;
}
.accordion-item.active .accordion-content {
  max-height: 8000px;
}

/* ---------- 详情内容通用样式 ---------- */
.detail-body {
  padding: var(--space-lg) var(--space-lg) var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

/* 标签行 */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-lg);
}
.detail-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid rgba(0,108,53,0.1);
}

/* 标语 */
.detail-slogan {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
  margin-bottom: var(--space-xl);
  padding: var(--space-sm) var(--space-md);
  background: linear-gradient(90deg, rgba(0,108,53,0.06) 0%, transparent 100%);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  border-left: 3px solid var(--color-primary);
}

/* 子标题 */
.detail-section-title {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  margin-top: var(--space-lg);
  padding-left: 12px;
  border-left: 4px solid var(--color-accent);
  line-height: 1.4;
}
.detail-section-title:first-child {
  margin-top: 0;
}

/* 服务网格卡片 */
.detail-services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.detail-service-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition-base);
}
.detail-service-item:hover {
  border-color: var(--color-accent);
  border-left-color: var(--color-primary);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.ds-num {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-accent);
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 8px;
}
.detail-service-item h5 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}
.detail-service-item p {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* 理由列表 */
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.reason-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px var(--space-md);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}
.reason-item:hover {
  background: var(--color-primary-light);
  transform: translateX(2px);
}
.reason-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.reason-item h6 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
  line-height: 1.4;
}
.reason-item p {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* 承诺横幅 */
.detail-promise {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}
.detail-promise span {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  position: relative;
}
.detail-promise span:not(:last-child)::after {
  content: '·';
  position: absolute;
  right: calc(var(--space-lg) * -1);
  color: rgba(255,255,255,0.5);
}

/* 保障条 */
.detail-guarantees {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.guarantee-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--color-text);
  font-weight: 500;
  padding: 6px 14px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
}
.guarantee-item::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
}

/* 优势网格 */
.detail-advantages {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.detail-advantage-item {
  text-align: center;
  padding: var(--space-md) var(--space-sm);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--color-primary);
  transition: all var(--transition-base);
}
.detail-advantage-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.detail-advantage-item h5 {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
}
.detail-advantage-item p {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
}

/* 横幅 */
.detail-banner {
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
}

/* CTA */
.detail-cta {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  background: linear-gradient(135deg, rgba(0,108,53,0.06), rgba(201,169,97,0.06));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(0,108,53,0.1);
}
.detail-cta h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}
.detail-cta-benefits {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.detail-cta-benefits span {
  font-size: 0.88rem;
  color: var(--color-primary);
  font-weight: 600;
  padding: 6px 16px;
  background: rgba(0,108,53,0.08);
  border-radius: var(--radius-full);
}

/* 响应式 */
@media (max-width: 768px) {
  .detail-services { grid-template-columns: 1fr; }
  .reasons-grid { grid-template-columns: 1fr; }
  .detail-advantages { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { padding: var(--space-xl) var(--space-lg); }
  .detail-promise { gap: var(--space-md); padding: var(--space-md); }
  .detail-promise span { font-size: 0.85rem; }
  .detail-promise span:not(:last-child)::after { right: calc(var(--space-md) * -1); }
  .ov-hero-text { font-size: 1rem; padding: var(--space-sm) var(--space-md); }
  .ov-banner { font-size: 0.95rem; padding: var(--space-md); }
  .ov-stat-num { font-size: 1.5rem; }
  .ov-stats { gap: var(--space-md); padding: var(--space-md); }
  .accordion-num { font-size: 1.05rem; min-width: 28px; }
  .accordion-title { font-size: 0.92rem; }
  .detail-section-title { font-size: 0.95rem; }
  .detail-slogan { font-size: 0.88rem; }
  .detail-tag { font-size: 0.72rem; padding: 3px 10px; }
  .ds-num { font-size: 0.68rem; }
  .detail-service-item h5 { font-size: 0.88rem; }
  .detail-service-item p { font-size: 0.78rem; }
  .reason-item h6 { font-size: 0.82rem; }
  .reason-item p { font-size: 0.75rem; }
  .guarantee-item { font-size: 0.76rem; padding: 5px 10px; }
  .detail-advantage-item h5 { font-size: 0.82rem; }
  .detail-advantage-item p { font-size: 0.74rem; }
  .detail-cta h4 { font-size: 1rem; }
  .detail-cta-benefits span { font-size: 0.82rem; padding: 5px 12px; }
  /* 客户标志网格 */
  .partners-logo-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .detail-advantages { grid-template-columns: 1fr; }
  .detail-body { padding: var(--space-md) var(--space-sm) var(--space-lg); }
  .accordion-trigger { padding: var(--space-sm) var(--space-md); font-size: 0.9rem; gap: var(--space-sm); }
  .accordion-num { font-size: 1rem; min-width: 24px; }
  .service-card { padding: var(--space-md); }
  .hero-inner { padding: var(--space-lg) var(--space-md); }
  .hero-tag { font-size: 0.78rem; padding: 5px 14px; }
  .detail-promise { flex-direction: column; gap: var(--space-xs); padding: var(--space-sm) var(--space-md); }
  .detail-promise span:not(:last-child)::after { content: ''; }
  .ov-hero-text { font-size: 0.92rem; }
  .ov-banner { font-size: 0.88rem; }
  .ov-stat-num { font-size: 1.3rem; }
  .ov-adv-card { padding: var(--space-md) var(--space-sm); }
  .ov-adv-card h5 { font-size: 0.85rem; }
  .ov-adv-card p { font-size: 0.76rem; }
  .ov-svc-item { padding: var(--space-xs) var(--space-sm); }
  .ov-svc-item > span:last-child { font-size: 0.8rem; }
  .detail-section-title { font-size: 0.9rem; padding-left: 10px; }
  .detail-slogan { font-size: 0.82rem; padding: var(--space-xs) var(--space-sm); }
  .detail-services { gap: var(--space-sm); }
  .detail-service-item { padding: var(--space-sm) var(--space-md); }
  .reasons-grid { gap: var(--space-xs); }
  .reason-item { padding: var(--space-sm) var(--space-md); gap: 8px; }
  .reason-num { width: 24px; height: 24px; font-size: 0.7rem; }
  .detail-advantages { gap: var(--space-sm); }
  .detail-advantage-item { padding: var(--space-sm); }
  .detail-cta { padding: var(--space-md) var(--space-sm); }
  .detail-cta-benefits { gap: var(--space-sm); }
  .detail-cta-benefits span { font-size: 0.78rem; padding: 4px 10px; }
  .partners-logo-grid { grid-template-columns: 1fr; }
}