/* ä¸­èª‰é¡µè„šç»„ä»¶æ ·å¼ */
.zhongyu-footer {
  background: #000;
  color: #fff;
  font-family: var(--font-family, 'Roboto', sans-serif);
}

/* ä¸»è¦å†…å®¹åŒº */
.zhongyu-footer-main {
  padding: 40px 0;
  /* border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
}

@media (min-width: 1800px) {
  .zhongyu-footer .container {
    max-width: 1600px;
  }
}

/* å…¬å¸ä¿¡æ¯åŒºåŸŸ */
.zhongyu-footer-company {
  padding-right: 40px;
  max-width: 320px;
}

.zhongyu-footer-logo {
  margin-bottom: 24px;
}

.zhongyu-footer-logo img {
  max-width: 146px;
  height: auto;
}

.zhongyu-footer-desc {
  margin-bottom: 32px;
}

.zhongyu-footer-desc p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.8;
  margin: 0;
}

.zhongyu-footer-contact {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.zhongyu-footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  align-items: center;
  color: #fff;
  font-size: 14px;
  line-height: 1.6;
}
.zhongyu-footer-contact-item svg{
  flex-shrink: 0;
}
.zhongyu-footer-contact-item i {
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}

/* å¯¼èˆªåŒºåŸŸ */
.zhongyu-footer-nav {
  margin-left: 0;
  margin-right: 0;
  flex: 1;
  justify-content: flex-end;
  gap: 54px;
}

.zhongyu-footer-nav-col {
  /* margin-bottom: 32px; */
}

.zhongyu-footer-title {
  color: #fff;
  font-size: var(--title-font-size, 18px);
  font-weight: var(--title-font-weight, 600);
  font-family: var(--title-font-family, 'Roboto', sans-serif);
  /* margin-bottom: 24px; */
  /* text-transform: uppercase; */
  padding-bottom: 20px;
  letter-spacing: 0.5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.zhongyu-footer-title .arrow {
  display: none;
  width: 10px;
  height: 10px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

.zhongyu-footer-title.active .arrow {
  transform: rotate(-135deg);
}

.zhongyu-footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

.zhongyu-footer-links li {
  margin-bottom: 4px;
}

.zhongyu-footer-links li:last-child {
  margin-bottom: 0;
}

.zhongyu-footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 10px;
  text-decoration: none;
  transition: all 0.3s ease;
  display: inline-block;
  position: relative;
  line-height: 16px;
}

.zhongyu-footer-links a:hover {
  color: #fff;
  text-decoration: none;
  transform: translateX(4px);
}

.zhongyu-footer-links a::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 1px;
  background: #fff;
  transition: width 0.3s ease;
}

.zhongyu-footer-links a:hover::before {
  width: 8px;
}

/* åº•éƒ¨ç‰ˆæƒåŒº */
.zhongyu-footer-bottom {
  padding: 25px 0;
}

.zhongyu-footer-copyright p {
  margin: 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
}

.zhongyu-footer-social {
  display: flex;
  justify-content: flex-end;
}

.zhongyu-social-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.zhongyu-social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 16px;
  transition: all 0.3s ease;
  text-decoration: none;
}

.zhongyu-social-links a:hover {
  background: #fff;
  color: #000;
  transform: translateY(-3px);
}
.footer-content{
  display: flex;
  justify-content: space-between;
}
/* ========================================
   å“åº”å¼è®¾è®¡ - Bootstrap æ–­ç‚¹ç³»ç»Ÿ
   
   æ–­ç‚¹è¯´æ˜Žï¼š
   - xs: <576px    (æ‰‹æœºç«–å±)
   - sm: â‰¥576px    (æ‰‹æœºæ¨ªå±)  
   - md: â‰¥768px    (å¹³æ¿ç«–å±)
   - lg: â‰¥992px    (æ¡Œé¢å°å±)
   - xl: â‰¥1200px   (æ¡Œé¢å¤§å±)
   - xxl: â‰¥1400px  (è¶…å¤§å±å¹•)
   ======================================== */

/* Extra Large (xl) - â‰¥1200px */
@media (min-width: 1200px) {
  .zhongyu-footer-main {
    padding: 40px 0;
  }

  .zhongyu-footer-title {
    font-size: 12px;
    /* margin-bottom: 20px; */
  }

  .zhongyu-footer-desc p {
    font-size: 15px;
  }

  .zhongyu-footer-contact-item {
    font-size: 15px;
  }

  .zhongyu-footer-links a {
    font-size: 10px;
  }

  .zhongyu-footer-logo img {
    max-width: 120px;
  }
}
.zhongyu-footer-nav-col:nth-child(n+2) .zhongyu-footer-title {
    position:relative
}
.zhongyu-footer-nav-col:nth-child(n+2) .zhongyu-footer-title::before {
    position:absolute;
  content:"";
  width:100%;
  height:1px;
  bottom:10px;
  background:#fff;
}
/* Extra Extra Large (xxl) - â‰¥1400px */
@media (min-width: 1400px) {
  .zhongyu-footer-main {
    padding: 40px 0;
  }

  .zhongyu-footer-title {
    font-size: 12px;
    padding-bottom: 20px;
  }
 
  .zhongyu-footer-desc p {
    font-size: 16px;
  }

  .zhongyu-footer-contact-item {
    font-size: 12px;
  }

  .zhongyu-footer-links a {
    font-size: 11px;
  }

  .zhongyu-footer-company {
    padding-right: 40px;
  }

  .zhongyu-footer-logo img {
    max-width: 146px;
  }
}

/* Large (lg) - â‰¥992px to <1200px */
@media (min-width: 992px) and (max-width: 1199.98px) {
  .zhongyu-footer-main {
    padding: 70px 0 50px;
  }

  .zhongyu-footer-title {
    font-size: 12px;
    padding-bottom: 20px;
  }

  .zhongyu-footer-company {
    padding-right: 0px;
  }

  .zhongyu-footer-logo img {
    max-width: 160px;
  }
}

/* Medium (md) - â‰¥768px to <992px */
@media (min-width: 768px) and (max-width: 991.98px) {
  .zhongyu-footer-main {
    padding: 60px 0 40px;
  }

  .zhongyu-footer-company {
    /* padding-right: 0; */
    /* margin-bottom: 50px; */
  }

  .zhongyu-footer-title {
    font-size: 16px;
    margin-bottom: 0;
    padding: 15px 0;
    cursor: pointer;
  }

  .zhongyu-footer-title .arrow {
    display: block;
  }

  .zhongyu-footer-links.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding-top: 10px;
  }
  
  .zhongyu-footer-desc p {
    font-size: 13px;
  }

  .zhongyu-footer-contact-item {
    font-size: 13px;
  }

  .zhongyu-footer-links a {
    font-size: 13px;
  }

  .zhongyu-footer-nav-col {
    /* margin-bottom: 40px; */
    width: 100%;
  }

  .zhongyu-footer-logo img {
    max-width: 150px;
  }

  .zhongyu-footer-bottom {
    padding: 25px 0;
  }

  .zhongyu-footer-social {
    justify-content: flex-start;
    margin-top: 16px;
  }
}

/* Small (sm) - â‰¥576px to <768px */
@media (min-width: 576px) and (max-width: 767.98px) {
  .zhongyu-footer-main {
    padding: 50px 0 30px;
  }

  .zhongyu-footer-company {
    /* padding-right: 0; */
    margin-bottom: 40px;
  }

  .zhongyu-footer-title {
    font-size: 16px;
    padding-bottom: 16px;
    width: 100%;
  }

  .zhongyu-footer-desc p {
    font-size: 13px;
  }

  .zhongyu-footer-contact {
    gap: 12px;
  }

  .zhongyu-footer-contact-item {
    font-size: 13px;
  }

  .zhongyu-footer-contact-item i {
    font-size: 16px;
  }

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

  .zhongyu-footer-links a {
    font-size: 13px;
  }

  .zhongyu-footer-nav-col {
    /* margin-bottom: 32px; */
    width: 100%;
  }

  .zhongyu-footer-logo img {
    max-width: 140px;
  }

  .zhongyu-footer-bottom {
    padding: 20px 0;
  }

  .zhongyu-footer-copyright {
    text-align: center;
    margin-bottom: 16px;
  }

  .zhongyu-footer-social {
    justify-content: center;
  }

  .zhongyu-social-links a {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }
}

/* Extra Small (xs) - <576px */
@media (max-width: 575.98px) {
  .zhongyu-footer-main {
    padding: 40px 0 30px;
  }

  .zhongyu-footer-company {
    padding-right: 0;
    margin-bottom: 36px;
  }

  .zhongyu-footer-title {
    font-size: 15px;
    padding-bottom: 14px;
  }

  .zhongyu-footer-desc {
    margin-bottom: 24px;
  }

  .zhongyu-footer-desc p {
    font-size: 12px;
  }

  .zhongyu-footer-contact {
    gap: 10px;
  }

  .zhongyu-footer-contact-item {
    font-size: 12px;
  }

  .zhongyu-footer-contact-item i {
    font-size: 14px;
  }

  .zhongyu-footer-links li {
    margin-bottom: 8px;
  }

  .zhongyu-footer-links a {
    font-size: 12px;
  }

  .zhongyu-footer-nav-col {
    /* margin-bottom: 28px; */
    width: 100%;
  }

  .zhongyu-footer-logo img {
    max-width: 120px;
  }

  .zhongyu-footer-bottom {
    padding: 16px 0;
  }

  .zhongyu-footer-copyright {
    text-align: center;
    margin-bottom: 14px;
  }

  .zhongyu-footer-copyright p {
    font-size: 11px;
  }

  .zhongyu-footer-social {
    justify-content: center;
  }

  .zhongyu-social-links {
    gap: 12px;
  }

  .zhongyu-social-links a {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  .footer-content{
    flex-wrap:wrap;
    justify-content: center;
    margin: 0;
  }
}

/* ç¡®ä¿ç»„ä»¶æ ·å¼éš”ç¦» */
.zhongyu-footer * {
  box-sizing: border-box;
}

/* åŠ¨ç”»æ•ˆæžœ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.zhongyu-footer-company,
.zhongyu-footer-nav-col {
  animation: fadeInUp 0.6s ease;
}
.zhongyu-footer-nav-col:nth-child(1) .zhongyu-footer-title{
  font-size: 16px;
  padding-bottom: 10px;
}
.zhongyu-footer-nav-col:nth-child(2) {
  animation-delay: 0.1s;
}

.zhongyu-footer-nav-col:nth-child(3) {
  animation-delay: 0.2s;
}

.zhongyu-footer-nav-col:nth-child(4) {
  animation-delay: 0.3s;
}

/* æ·±è‰²ä¸»é¢˜ä¼˜åŒ– */
@media (prefers-color-scheme: dark) {
  .zhongyu-footer {
    background: #000;
  }
}

/* é«˜å¯¹æ¯”åº¦æ¨¡å¼æ”¯æŒ */
@media (prefers-contrast: high) {
  .zhongyu-footer-links a,
  .zhongyu-footer-desc p,
  .zhongyu-footer-contact-item {
    color: #fff;
  }
}

/* æ‰“å°æ ·å¼ä¼˜åŒ– */
@media print {
  .zhongyu-footer-social {
    display: none;
  }

  .zhongyu-footer {
    background: #fff;
    color: #000;
    border-top: 2px solid #000;
  }

  .zhongyu-footer-links a {
    color: #000;
  }
}

@media screen and (max-width: 1500px) {

  .zhongyu-footer-company{
    max-width:200px;
  }
}
@media screen and (max-width: 1440px) {
  .zhongyu-footer-nav{
    gap: 20px;
  }

}
@media screen and (max-width: 1200px) {
  .zhongyu-footer-nav{
    gap: 10px;
  }

}
@media screen and (max-width: 992px) {
  .zhongyu-footer-nav{
    gap: 10px;
    justify-content: flex-start;
  }
      .zhongyu-footer-title .arrow {
        display: block;
    }
}

@media screen and (max-width: 568px) {
  .zhongyu-footer-company{
    width:100%;
    flex-shrink: 0;
  }
}