/* 通用设置 */
body {
  margin: 0;
  font-family: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: #222;
  min-height: 100vh;
}
.z3d5accontainer {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* 顶部导航栏 */
.z3d5acnavbar {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}
.z3d5acnav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.z3d5acsite-title {
  font-size: 2rem;
  font-weight: bold;
  color: #2d8cf0;
  letter-spacing: 2px;
}
.z3d5acnav-menu a {
  margin-left: 32px;
  text-decoration: none;
  color: #333;
  font-size: 1.1rem;
  transition: color 0.2s;
}
.z3d5acnav-menu a:hover {
  color: #2d8cf0;
}

/* 导航栏汉堡菜单响应式 */
.z3d5acnav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  color: #2d8cf0;
  margin-right: 8px;
}
.z3d5acnav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
@media (max-width: 700px) {
  .z3d5acnav-toggle {
    display: block;
  }
  .z3d5acnav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100vw;
    background: #fff;
    flex-direction: column;
    gap: 0;
    box-shadow: 0 4px 24px rgba(45,140,240,0.08);
    z-index: 999;
    padding: 0 0 12px 0;
  }
  .z3d5acnav-links.open {
    display: flex;
  }
  .z3d5acnav-links a {
    width: 100%;
    padding: 16px 0;
    text-align: center;
    border-bottom: 1px solid #f0f0f0;
    font-size: 1.1rem;
    color: #2d8cf0;
  }
  .z3d5acnav-links a:last-child {
    border-bottom: none;
  }
  .z3d5acnav-container {
    position: relative;
  }
}

/* 主横幅 */
.z3d5achero {
  background: linear-gradient(120deg, #2d8cf0 0%, #6dd5ed 100%);
  color: #fff;
  padding: 60px 0 40px 0;
  box-shadow: 0 4px 24px rgba(45,140,240,0.08);
}
.z3d5achero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.z3d5achero-text {
  flex: 1 1 350px;
}
.z3d5achero-text h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.z3d5achero-text p {
  font-size: 1.2rem;
  margin-bottom: 20px;
}
.z3d5achero-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.z3d5achero-keywords li {
  background: rgba(255,255,255,0.2);
  border-radius: 16px;
  padding: 6px 18px;
  font-size: 1rem;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.z3d5achero-img {
  flex: 1 1 260px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.z3d5achero-img img {
  width: 220px;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.10);
  background: #fff;
}

/* 主内容大框架 */
.z3d5acmain-wrapper {
  background: #fff;
  border-radius: 28px;
  box-shadow: 0 8px 40px rgba(45,140,240,0.10);
  max-width: 1100px;
  margin: 36px auto 36px auto;
  padding: 36px 36px 24px 36px;
}

/* 板块通用 */
.z3d5acsection {
  padding: 48px 0 32px 0;
  margin-bottom: 0;
  border-top: 1.5px solid #e6eaf0;
}
.z3d5acsection:first-child {
  border-top: none;
}
.z3d5acsection h2 {
  font-size: 2rem;
  margin-bottom: 24px;
  color: #2d8cf0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 1px;
}
.emoji {
  font-size: 1.5rem;
}

/* 卡片布局 */
.z3d5accard-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.z3d5accard {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(45,140,240,0.08);
  padding: 28px 22px 22px 22px;
  width: 300px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.z3d5accard:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 8px 32px rgba(45,140,240,0.13);
}
.z3d5accard img {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  border-radius: 12px;
  background: #f5f7fa;
}
.z3d5accard h3 {
  margin: 10px 0 8px 0;
  color: #2d8cf0;
  font-size: 1.2rem;
}
.z3d5accard p {
  color: #555;
  font-size: 1rem;
}

/* 平台优势 */
.z3d5acfeatures-list {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}
.z3d5acfeature-item {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(45,140,240,0.07);
  padding: 18px 32px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 1.1rem;
  margin-bottom: 12px;
}
.z3d5acfeature-icon {
  font-size: 1.6rem;
}

/* 联系我们 */
.z3d5accontact-card {
  display: flex;
  align-items: center;
  gap: 32px;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(45,140,240,0.08);
  padding: 28px 22px;
  max-width: 600px;
  margin: 0 auto;
}
.z3d5accontact-card img {
  width: 120px;
  height: 120px;
  border-radius: 16px;
  background: #f5f7fa;
}
.email {
  color: #2d8cf0;
  font-weight: bold;
}

/* 页脚 */
.z3d5acfooter {
  background: #2d8cf0;
  color: #fff;
  text-align: center;
  padding: 18px 0;
  font-size: 1rem;
  margin-top: 32px;
  letter-spacing: 1px;
}

/* 平台介绍列表 */
.z3d5acabout-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.z3d5acabout-list li {
  background: #eaf6ff;
  color: #2d8cf0;
  border-radius: 12px;
  padding: 8px 18px;
  font-size: 1rem;
  font-weight: 500;
}

/* 购买流程 */
.z3d5acprocess-steps {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 18px;
}
.z3d5acprocess-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(45,140,240,0.07);
  padding: 18px 24px;
  width: 150px;
  margin-bottom: 12px;
}
.z3d5acprocess-step img {
  width: 48px;
  height: 48px;
  margin-bottom: 10px;
  border-radius: 8px;
  background: #f5f7fa;
}
.z3d5acprocess-step span {
  font-size: 1rem;
  color: #2d8cf0;
  font-weight: 500;
}

/* 服务保障 */
.z3d5acguarantee-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
}
.z3d5acguarantee-list li {
  background: #f0f9f5;
  color: #1abc9c;
  border-radius: 12px;
  padding: 10px 22px;
  font-size: 1rem;
  font-weight: 500;
}

/* 用户评价 */
.z3d5acreviews-list {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}
.z3d5acreview-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 2px 12px rgba(45,140,240,0.07);
  padding: 18px 22px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 420px;
  min-height: 160px;
  margin-bottom: 0;
  flex-direction: row;
}
.z3d5acreview-icon {
  font-size: 2.2rem;
  margin-right: 10px;
  margin-top: 6px;
  flex-shrink: 0;
}
.z3d5acreview-user {
  color: #888;
  font-size: 0.95rem;
  margin-top: 6px;
  display: block;
}
.z3d5acreview-detail {
  color: #555;
  font-size: 0.98rem;
  margin-top: 4px;
}

/* FAQ */
.z3d5acfaq-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 800px;
  margin: 0 auto;
}
.z3d5acfaq-item {
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(45,140,240,0.06);
  padding: 16px 22px;
}
.z3d5acfaq-item h3 {
  margin: 0 0 6px 0;
  color: #2d8cf0;
  font-size: 1.08rem;
}
.z3d5acfaq-item p {
  margin: 0;
  color: #444;
  font-size: 1rem;
}

/* 响应式设计 */
@media (max-width: 900px) {
  .z3d5achero-content {
    flex-direction: column;
    text-align: center;
    gap: 32px;
  }
  .z3d5accard-grid {
    flex-direction: column;
    align-items: center;
  }
  .z3d5acfeatures-list {
    flex-direction: column;
    align-items: center;
  }
  .z3d5accontact-card {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .z3d5acprocess-steps {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .z3d5acreviews-list {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  .z3d5acmain-wrapper {
    padding: 8px 2vw 8px 2vw;
  }
  .z3d5accard, .z3d5acreview-card {
    width: 98%;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
    word-break: break-all;
  }
  .z3d5accard-grid, .z3d5acreviews-list {
    gap: 12px;
  }
  .z3d5acguarantee-list {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .z3d5acguarantee-list li {
    width: 98%;
    max-width: 100%;
    box-sizing: border-box;
    text-align: center;
  }
}
@media (max-width: 600px) {
  .z3d5accontainer {
    width: 98%;
    padding: 0 4px;
  }
  .z3d5acnavbar {
    height: auto;
  }
  .z3d5acnav-container {
    flex-direction: column;
    height: auto;
    gap: 8px;
    padding: 8px 0;
  }
  .z3d5acsite-title {
    font-size: 1.3rem;
  }
  .z3d5acnav-menu a {
    margin-left: 16px;
    font-size: 1rem;
  }
  .z3d5achero-text h1 {
    font-size: 1.5rem;
  }
  .z3d5acsection h2 {
    font-size: 1.2rem;
  }
  .z3d5accard {
    width: 98%;
    padding: 18px 6px;
  }
  .z3d5accontact-card {
    padding: 14px 4px;
  }
  .z3d5acfooter {
    font-size: 0.9rem;
  }
}

.z3d5acsection-alt {
  background: #f7fafd;
}

/* 波浪分割线 */
.z3d5acwave-divider {
  width: 100%;
  height: 40px;
  background: url('data:image/svg+xml;utf8,<svg width="100%25" height="40" viewBox="0 0 1200 40" xmlns="http://www.w3.org/2000/svg"><path d="M0,0 C300,40 900,0 1200,40 L1200,40 L0,40 Z" fill="%23f7fafd"/></svg>') no-repeat center/cover;
  margin: -8px 0 0 0;
}

/* 购买流程时间轴 */
.z3d5acprocess-timeline {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 32px;
  list-style: none;
  padding: 0;
  margin: 32px 0 0 0;
  position: relative;
}
.z3d5acprocess-timeline li {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  width: 180px;
  min-height: 140px;
}
.z3d5acprocess-timeline li:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 32px;
  right: -16px;
  width: 32px;
  height: 4px;
  background: linear-gradient(90deg, #2d8cf0 60%, #f7fafd 100%);
  border-radius: 2px;
  z-index: 1;
}
.z3d5actimeline-icon {
  width: 56px;
  height: 56px;
  background: #eaf6ff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(45,140,240,0.10);
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
}
.z3d5actimeline-icon img {
  width: 36px;
  height: 36px;
}
.z3d5actimeline-content h4 {
  margin: 0 0 4px 0;
  font-size: 1.08rem;
  color: #2d8cf0;
  font-weight: 600;
}
.z3d5actimeline-content p {
  margin: 0;
  color: #555;
  font-size: 0.98rem;
}

/* FAQ手风琴 */
.z3d5acfaq-question {
  max-width: 100%;
  display: inline-block;
  margin: 0 auto;
  background: #f7fafd;
  border: none;
  outline: none;
  text-align: left;
  font-size: 1.08rem;
  color: #2d8cf0;
  font-weight: 600;
  padding: 12px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s;
}
.z3d5acfaq-question:hover {
  background: #eaf6ff;
}
.z3d5acfaq-answer {
  max-height: 0;
  overflow: hidden;
  background: #fff;
  border-radius: 0 0 8px 8px;
  transition: max-height 0.35s cubic-bezier(.4,0,.2,1), padding-top 0.2s;
  padding: 0 16px;
  font-size: 1rem;
  color: #444;
  text-align: left;
}
.z3d5acfaq-item {
  box-shadow: 0 2px 8px rgba(45,140,240,0.06);
  border-radius: 8px;
  margin-bottom: 8px;
  background: #f7fafd;
}

/* 卡片悬浮动画 */
.z3d5accard, .z3d5acfeature-item, .z3d5acreview-card {
  transition: transform 0.22s cubic-bezier(.4,0,.2,1), box-shadow 0.22s;
}
.z3d5accard:hover, .z3d5acfeature-item:hover, .z3d5acreview-card:hover {
  transform: translateY(-8px) scale(1.045);
  box-shadow: 0 8px 32px rgba(45,140,240,0.16);
  z-index: 2;
}

@media (max-width: 900px) {
  .z3d5acprocess-timeline {
    flex-direction: column;
    gap: 18px;
    align-items: center;
  }
  .z3d5acprocess-timeline li:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 56px;
    width: 4px;
    height: 32px;
    background: linear-gradient(180deg, #2d8cf0 60%, #f7fafd 100%);
    border-radius: 2px;
    z-index: 1;
    right: auto;
  }
}

/* 平台优势卡片专用样式 */
#features .z3d5accard-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}
#features .z3d5accard {
  width: 300px;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px rgba(45,140,240,0.08);
  padding: 28px 22px 22px 22px;
  margin-bottom: 0;
}
#features .z3d5acfeature-icon {
  font-size: 2.2rem;
  margin-bottom: 10px;
  display: block;
}
#features .z3d5acfeature-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: #2d8cf0;
  margin-bottom: 8px;
  display: block;
}
#features .z3d5acfeature-desc {
  color: #555;
  font-size: 1rem;
}
@media (max-width: 900px) {
  #features .z3d5accard-grid {
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }
  #features .z3d5accard {
    width: 98%;
    min-width: 0;
    padding: 18px 6px;
  }
}

/* FAQ区每排3个卡片排列 */
.z3d5acfaq-list.card-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
}
.z3d5acfaq-list.card-grid .z3d5acfaq-item {
  flex: 0 1 calc(33.333% - 22px);
  max-width: 360px;
  min-width: 220px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}
.z3d5acfaq-question {
  /* width: 100%; */
  max-width: 100%;
  display: inline-block;
  margin: 0 auto;
}
.z3d5acfaq-answer {
  text-align: left;
}
@media (max-width: 900px) {
  .z3d5acfaq-list.card-grid .z3d5acfaq-item {
    flex: 0 1 98%;
    max-width: 100%;
  }
}