/* 全局重置 & 工具类 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.page {
  max-width: 1920px; 
  margin: 0 auto;
  overflow-x: hidden;
}
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-20 { gap: 20px; }
.gap-40 { gap: 40px; }

/* 头部导航 */
.header {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.header .nav-container {
  display: flex;
  align-items: center;
  padding: 15px 5%; 
  position: absolute;
  top: 0; 
  left: 0;
  right: 0;
  z-index: 2; 
  max-width: 1920px;
  margin: 0 auto;
  background: transparent; 
  transform: translateX(100px);
}
.header .logo {
  width: clamp(180px, 15vw, 300px);
  height: auto;
  flex-shrink: 0;
  margin-left: clamp(50px, 8%, 230px);
}
.header .nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0; 
  margin: 0 0 0 auto; 
  gap: clamp(20px, 3vw, 35px);
  transform: translateX(-55px);
}
.header .nav-item {
  color: #131313;
  font-size: 21px;
  text-decoration: none;
  font-weight: 500;
}
.house-system-item {
  background-color: #3645FF;
  padding: 8px 16px;
  border-radius: 25px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 21px;
  font-weight: 500;
  margin-left: 320px;
  transform: translateX(-120px);
}
.header .banner {
  width: 100%;
  height: auto; 
  margin-top: 0px; 
  display: block; 
  object-fit: cover;
}
.header .nav-item.active {
  color: #3645FF; 
  font-weight: 600; 
}
/* 通用区块标题 */
.section-title {
  font-size: 36px;
  font-weight: 600;
  color: #090c27;
  text-align: center;
  margin: 0 0 40px;
  margin-top: 83px;
}

/* 核心优势区 */
.advantage-section {
  padding: 0 5%;
}
.advantage-icons {
  display: flex;
  justify-content: center;
  gap: 40px; 
  flex-wrap: wrap; 
}
.advantage-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.advantage-item img {
  width: 145px;
  height: 145px;
  object-fit: contain; 
}
.advantage-text {
  font-size: 16px;
  color: #333;
}

/* 全域营销区 */
.marketing-section {
  background-color: #f5f5f5;
  padding: 60px 0;
  margin: 40px 0;
  border-radius: 8px;
}
.marketing-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start; 
  gap: 30px;
  padding-left: clamp(50px, 8%, 100px); 
  padding-right: 5%;
  max-width: 1920px;
  margin: 0 auto; 
}
.marketing-item {
  width: calc(50% - 15px); 
  display: flex;
  align-items: flex-start;
  gap: 20px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  border-radius: 6px;
  background: #fff;
}
.marketing-item img {
  width: 172px;
  height: 243px;
  flex-shrink: 0;
  object-fit: cover;
}
.marketing-content {
  flex: 1;
}
.number-text {
  font-size: 24px;
  font-weight: 600;
  color: #090c27;
}
.desc-text {
  font-size: 16px;
  color: #666;
  line-height: 1.6;
}
.tag-text {
  font-size: 18px;
  color: #090c27;
  font-weight: 500;
  margin-top: 5px;
}

/* 合作伙伴区 */
.partner-section {
  padding: 0 5%;
  margin-bottom: 80px;
}
.partner-logos {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}
.partner-item {
  width: 280px;
  height: 234px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partner-item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* 底部 */
.footer {
    height: auto;
    padding: 30px 5%;
    background: #060606;
    max-width: 1920px;
    margin: 0 auto;
}
.footer_box_1,.footer_box_2{
    display: flex;
    align-items: flex-start;
    gap: clamp(20px, 5%, 50px);
    flex-wrap: wrap;
    margin-bottom: 10px;
    padding: 0 5% 0 15%; 
    margin: 0 auto;
    margin-bottom: 30px;
    max-width: 1920px;
}
.footer_text_1,.footer_text_3{
    flex: 0 0 40%; 
    min-width: 280px; 
}
.footer_text_2,.footer_text_4{
    flex: 0 0 35%; 
    min-width: 280px; 
}
.footer_text_1,.footer_text_2{
    color: #eeeded;
    font-size: 18px;
    text-align: left;
    text-decoration: underline;
    text-decoration-color: blue;
    text-decoration-thickness: 2px;
    text-underline-offset: 8px; 
}
.footer_text_3,.footer_text_4{
    height: auto;
    color: #eeeded;
    line-height: 1.6; 
    text-align: left;
}
.footer-qrcode-wrap {
  flex: 0 0 15%; 
  min-width: 105px; 
  display: flex;
  flex-direction: column;
  align-items: center; 
}
.footer_text_5{
    width: auto;
    height: auto;
    color: #eeeded;
    font-size: 14px;
    text-align:center;
    margin-top: -18px;
}
.footer_text_6{
    width: 100%;
    height: auto;
    color: #f1eded;
    font-size: 14px;
    text-align:center;
    margin: 20px;
}


/* 响应式适配（平板/手机） */
@media (max-width: 1200px) {
  .advantage-icons { gap: 20px; }
  .marketing-item { flex-direction: column; align-items: center; text-align: center; }
}
@media (max-width: 768px) {
  .section-title { font-size: 28px; }
  .header .nav-list { gap: 15px; }
  .header .nav-item { font-size: 14px; }
  .partner-item { width: 180px; height: 150px; }
}