* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

:root {
  --primary-dark: #1d4ed8;
  --light: #f8fafc;
  --dark: #0f172a;
  --success: #10b981;
  --border-radius: 8px;
  --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
  /* Modern Color Palette */
  --primary: #2d3561;
  --primary-light: #3d4578;
  --secondary: #ff9911;
  --secondary-light: #ff8c5a;
  --accent: #f7931e;
  --dark: #1a1f36;
  --gray-900: #2c3343;
  --gray-700: #4f5665;
  --gray-500: #7c8798;
  --gray-300: #d4d8e0;
  --gray-100: #f7f8fa;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, var(--primary) 0%, #5b6b9c 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  cursor: pointer;
  outline: none;
}

a,
button {
  -webkit-tap-highlight-color: rgba(45, 53, 97, 0.1);
}

input,
textarea,
select {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
}

body {
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 100%;
  /* max-width: 1200px; */
  margin: 0 auto;
}

.lang-switch {
  width: 6.94rem;
  height: 2.5rem;
  border-radius: 2.5rem 2.5rem 2.5rem 2.5rem;
  border: 0.06rem solid #ffffff;
  background: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.lang-option {
  font-size: 0.88rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: color 0.3s ease;
}

.lang-option.active {
  color: #fff;
  font-weight: 400;
}

.lang-divider {
  width: 0;
  margin: 0 0.7rem;
  height: 0.88rem;
  border: 0.06rem solid rgba(255, 255, 255, 0.35);
}

/* 导航栏样式 */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  /* box-shadow: var(--shadow-sm); */
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
}

.nav-logo {
  font-weight: 700;
  color: #fff;
}

.technology {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  display: flex;
  align-items: center;
}

.CRE {
  font-weight: 400;
  font-size: 0.63rem;
  color: #ffffff;
}

.logo i {
  margin-right: 8px;
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 4rem;
}

.nav-links a {
  text-decoration: none;
  font-weight: 400;
  font-size: 1rem;
  color: #ffffff;
  line-height: 1.5rem;
  text-transform: none;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links .active {
  font-weight: 600;
  font-size: 1rem;
  color: #ffffff;
  line-height: 1.5rem;
  text-align: center;
  font-style: normal;
  text-transform: none;
}

.nav-links a:hover {
  color: rgb(255, 255, 255);
}

.nav-links .active::after {
  width: 1rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -0.75rem;
  left: 50%;
  transform: translate(-50%, -50%);
  /* 使元素居中 */
  height: 0.25rem;
  background: var(--secondary);
  transition: width 0.3s ease;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: #fff;
  cursor: pointer;
}

/* 主内容区域样式 */
.section-title {
  text-align: center;
}

.section-title h2 {
  font-size: 3.5rem;
  color: #002266;
}

.section-title p {
  margin: 0 auto;
}

/* 首页样式 */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 67.5rem;
  background-image: url("./images/hero.jpeg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  max-width: 100vw;
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 7.5rem;
  transform: translate(0%, -50%);
  /* 使元素居中 */
}

.hero-content h1 {
  margin-bottom: 3rem;
  font-weight: bold;
  font-size: 6rem;
  color: #ffffff;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--secondary);
  margin-bottom: 4rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-outline {
  width: 14.75rem;
  height: 5rem;
  border-radius: 4.5rem 4.5rem 4.5rem 4.5rem;
  border: 0.13rem solid #ff9911;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.5rem;
  color: #fff;
}

.tm {
  width: 2.5rem;
  height: 2.5rem;
  margin-left: 1rem;
}

/* 产品功能样式 */
.features {
  max-width: 100vw; 
  background: linear-gradient(
    212deg,
    rgba(230, 243, 255, 0) 0%,
    rgba(240, 249, 255, 0.5) 50%,
    #f0f9ff 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10rem 0;
}

.features-items .container-box .video-box video {
  width: 30rem;
  height: 30rem;
  object-fit: cover;
  border-radius: 30rem;
}
.features-items .container-box .video-box img {
  width: 31.88rem;
  height: 29.38rem;
  object-fit: cover; 
}
.features-items .container-box {
  /* height: 67.5rem; */
  max-width: 100vw;
  padding-top: 5rem;
}

.features-items .container-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 5.63rem;
}

.features-items .container .feature-left {
  display: flex;
  justify-content: space-between;
  width: 62rem;
  height: 30rem;
  position: relative;
}

.features-items .container .feature-left .grid-l {
 
}

.features-items .container .feature-left .grid-r {
 
}

.features-items .container .feature-left h2 {
  font-weight: 600;
  font-size: 1.5rem;
  color: #002266;
}

.features-items .container .feature-left .feature-card {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ffffff;
  box-shadow: 0rem 0.5rem 1.5rem 0rem rgba(0, 0, 0, 0.08);
  border-radius: 1.5rem 1.5rem 1.5rem 1.5rem;
  width: 11rem;
  height: 5rem;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.features-items .container .feature-right {
  /* margin-left: 17.5rem; */
}

.features-items .container .feature-right .feature-card {
  background: #ffffff;
  box-shadow: 0rem 0.5rem 1.5rem 0rem rgba(0, 0, 0, 0.08);
  border-radius: 1.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  width: 40.5rem;
  min-height: 30rem;
  padding: 0 3.5rem;
}

.features-items .container .feature-right .feature-card h2 {
  padding-top: 3.5rem;
  font-weight: 600;
  font-size: 2rem;
  color: #002266;
}

.features-items .container .feature-left .active {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  background: #ffffff;
  box-shadow: 0rem 0.5rem 1.5rem 0rem rgba(0, 0, 0, 0.08);
  border-radius: 1.5rem 1.5rem 1.5rem 1.5rem;
  border: 0.13rem solid #ff9911;
}

.features-items .container .feature-left .active h2 {
  color: #ff9911;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: var(--secondary);
}

.feature-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.feature-card:hover .feature-image img {
  transform: scale(1.05);
}

.feature-content > p {
  margin-top: 1.5rem;
  font-weight: 400;
  font-size: 1.25rem;
  line-height: 2.5rem;
  color: #666666;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  margin-top: 1.5rem;
}

.feature-list li {
  position: relative;
  font-weight: 400;
  font-size: 1.25rem;
  line-height: 2.5rem;
  color: #666666;
}

/* 应用场景样式 */

.scenarios {
  padding: 10rem 0;
  /* min-height: 67.5rem;  */
  max-width: 100vw;
  background: var(--white);
  display: flex;
  align-items: center;
}

.scenarios .scenarios-container {
  margin: 0 5rem;
}

.scenarios .container-tt {
  text-align: center;
  margin-bottom: 5rem;
  font-weight: 600;
  font-size: 3.5rem;
  color: #002266;
}

/* .scenarios .container-tt .tt1 {
  font-weight: 600;
  font-size: 2.5rem;
  color: #333333;
  line-height: 3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.scenarios .container-tt .tt2 {
  font-weight: 600;
  font-size: 2.5rem;
  color: #ff9911;
  line-height: 3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
}
.scenarios .container-tt .tt3 {
  font-weight: 400;
  font-size: 2.5rem;
  color: #333333;
  line-height: 3rem;
  text-align: left;
  font-style: normal;
  text-transform: none;
} */
.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.scenarios-card {
  background: var(--white);
  border-radius: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all 0.4s ease;
  position: relative;
}

.scenarios-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-10px);
}

.scenarios-image {
  width: 26.56rem;
  height: 42.5rem;
  overflow: hidden;
}

.scenarios-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scenarios-number {
  position: absolute;
  top: 0rem;
  left: 0rem;
  width: 27.81rem;
  height: 10rem;
  border-radius: 2rem 2rem 0rem 0rem;
  background: radial-gradient(
    circle at 0% 0%,
    rgba(0, 34, 102, 0.8) 0%,
    transparent 55%
  );
}

.scenarios-card h3 {
  text-align: center;
  font-weight: 600;
  font-size: 1.5rem;
  color: #ffffff;
  position: absolute;
  bottom: 0rem;
  width: 100%;
  height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 0rem 0rem 1.5rem 1.5rem;
}

.scenarios-card p {
  color: var(--gray-700);
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 0 1.5rem 1.5rem;
}

/* 核心优势样式 */

.advantages {
  background-image: url("./images/advantages.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  /* height: 67.5rem; */
  display: flex;
  align-items: flex-end;
  justify-content: center;
  max-width: 100vw;
  padding-top: 10rem;
}

.advantages .container {
  /* width: 1366px;
  align-items: flex-end; */
  display: flex;
}

.advantages .advantages-tt {
  text-align: center;
  font-weight: 600;
  font-size: 3.5rem;
  color: #002266;
  padding-bottom: 6.25rem;
}

/* .advantages .advantages-tt1 {
  font-weight: 600;
  font-size: 2.5rem;
  color: #333333;
}
.advantages .advantages-tt2 {
  font-weight: 400;
  font-size: 2.5rem;
  color: #333333;
} */
.advantages .container-left .advantages-card {
  /* background: #ffffff; */
  margin-bottom: 5.5rem;
  display: flex;
  align-items: center;
}

.advantages .container .container-left {
  min-width: 44rem;
  max-width: 62rem;
  margin-top: 5rem;
  margin-left: 7.5rem;
}

.advantages .container .container-left .advantages-card .card-icon {
  width: 3.5rem;
  height: 8rem;
  text-align: center;
}

.container-left .advantages-card .card-icon img {
  width: 2.5rem;
  height: 2.5rem;
  margin-top: 1.63rem;
  margin-bottom: 0.56rem;
}

.container-left .advantages-card .card-icon div {
  font-weight: 600;
  font-size: 3.5rem;
  line-height: 4rem;
  color: #002266;
}

.container-left .advantages-card .card-right {
  width: 58rem;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
}

.container-left .advantages-card .card-right .right-box {
  text-align: center;
  width: 14rem;
}

.container-left .advantages-card .card-right .right-box div:first-child {
  font-weight: 400;
  font-size: 3rem;
  color: #002266;
  margin-bottom: 1.25rem;
}

.container-left .advantages-card .card-right .right-box div:last-child {
  font-weight: 400;
  font-size: 1.5rem;
  color: #333333;
}

.advantages .container .container-right {
  width: 43.25rem;
  height: 52.5rem;
}

.advantages .container .container-right .certificate {
  width: 43.25rem;
  height: 52.5rem;
}

/* .advantages .container .container-right .certificate1 {
  width: 16.88rem;
  height: 22.5rem;
  position: absolute;
  bottom: 4rem;
  left: 3rem;
  z-index: 2;
}
.advantages .container .container-right .certificate2 {
  width: 16.94rem;
  height: 12.56rem;
  position: absolute;
  bottom: 2em;
  left: 6rem;
  z-index: 3;
}
.advantages .container .container-right .certificate3 {
  width: 16.88rem;
  height: 22.5rem;
  position: absolute;
  bottom: 1rem;
  left: 14rem;
  z-index: 1;
} */
/* 合作伙伴 */

.results {
  background-image: url("./images/partner.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  height: 56.19rem;
  max-width: 100vw;
}

/* 联系我们样式 */
.contact {
  background-image: url("./images/advantages.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  height: 69.25rem;
  display: flex;
  max-width: 100vw;
}

.contact-left {
  width: 83.38rem;
}

.contact-left .left-tt {
  font-weight: 600;
  font-size: 3.5rem;
  color: #002266;
  margin-top: 7.5rem;
  margin-left: 6.5rem;
  margin-bottom: 3.5rem;
}

.contact-left .left-info {
  margin-left: 2.5rem;
  width: 80.88rem;
  height: 20rem;
  background: linear-gradient(
    90deg,
    rgba(0, 34, 102, 1),
    /* 深蓝色 */ #f5f5f5 /* 与页面背景相同的浅灰色 */
  );
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1.5rem 0rem 0rem 1.5rem;
}

.contact-left .left-info .TAKSON {
  background-color: #fff;
  /* 与body背景色相同 */
  width: 80.71rem;
  height: 19.7rem;
  border-radius: 1.5rem 0rem 0rem 1.5rem;
  position: relative;
}

.contact-left .left-info .info-up {
  display: flex;
  align-items: center;
  margin-left: 4rem;
  margin-top: 3.5rem;
}

.contact-left .left-info .info-up :first-child {
  font-weight: bold;
  font-size: 4rem;
  color: #002266;
  margin-right: 3rem;
}

.contact-left .left-info .info-up :last-child {
  width: 24rem;
  height: 4rem;
  background: #ff9911;
  border-radius: 0rem 0rem 0rem 0rem;
  font-weight: 600;
  font-size: 2rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-left .left-info .info-below {
  margin-left: 4rem;
  margin-top: 2rem;
  width: 52.5rem;
  height: 6rem;
  font-weight: 400;
  font-size: 1.75rem;
  color: #333333;
  line-height: 3rem;
  text-align: left;
}

.contact-left .left-info .contact-left {
  position: absolute;
  right: 0;
  top: -1.25rem;
  width: 22.5rem;
  height: 22.5rem;
}

.contact-left .left-icons {
  width: 72.5rem;
  margin-left: 6.69rem;
  margin-top: 2.5rem;
}

.contact-left .left-icons img {
  width: 72.5rem;
  height: 24rem;
}

.contact-right {
  background-image: url("./images/contact-right.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  width: 36.63rem;
  height: 69.25rem;
}

.contact-right h3 {
  font-weight: bold;
  font-size: 4rem;
  color: #ffffff;
  margin-top: 7.5rem;
  margin-left: 4.5rem;
}

.contact-right .subheading {
  margin-top: 3rem;
  margin-bottom: 3rem;
  margin-left: 4.5rem;
  width: 24rem;
  height: 4rem;
  background: #ff9911;
  border-radius: 0rem 0rem 0rem 0rem;
  font-weight: 600;
  font-size: 2rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.right-info {
  width: 29.13rem;
  height: 40.5rem;
  margin-left: 4.5rem;
  font-weight: 400;
  font-size: 1.75rem;
  color: #ffffff;
  line-height: 4.5rem;
  text-align: left;
}

/* 联系我们--表单 */

.contact-us {
  height: 67.5rem;
  background-image: url("./images/us.png");
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  max-width: 100vw;
}

.us-container {
  display: flex;
  justify-content: space-between;
  max-width: 100vw;
}

.us-container .container-head {
  margin-top: 7.5rem;
  margin-left: 6.5rem;
}

.us-container .container-head .tt1 {
  font-weight: 600;
  font-size: 3.5rem;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.us-container .container-head .tt2 {
  font-weight: 600;
  font-size: 2rem;
  color: #ffffff;
}

.us-container .container-footer {
  margin-top: 24.5rem;
  margin-left: 6.5rem;
}
.us-container .container-footer .info-tt {
  font-weight: 600;
  font-size: 2rem;
  color: #002266;
  margin-bottom: 2rem;
}
.us-container .container-footer .item {
  font-weight: 400;
  font-size: 1.75rem;
  color: #333333;
  margin-bottom: 0.75rem;
}
.us-container .container-footer .solid {
  width: 20rem;
  height: 0rem;
  border: 0.13rem solid #002266;
  margin-top: 2rem;
}
.us-right {
  width: 27.5rem;
  height: 40rem;
  background: #ffffff;
  box-shadow: 0rem 0.5rem 1.5rem 0rem rgba(0, 0, 0, 0.08);
  border-radius: 1.5rem 1.5rem 1.5rem 1.5rem;
  margin-top: 11rem;
  margin-right: 5rem;
}

.contact-form {
  width: 27.5rem;
  height: 40rem;
  margin-left: 2rem;
}
.contact-form h2 {
  font-weight: 600;
  font-size: 1.25rem;
  color: #002266;
  text-align: center;
  margin-top: 2rem;
  margin-bottom: 2rem;
}
.contact-form h3 {
  font-weight: 600;
  font-size: 1.25rem;
  color: #002266;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
  width: 22.44rem;
  padding: 1rem 1.25rem;
  border-radius: 0.5rem 0.5rem 0.5rem 0.5rem;
  border: 0.06rem solid #dddddd;
  transition: all 0.3s ease;
  font-weight: 400;
  font-size: 1rem;
  color: #999999;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--secondary);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
}

.form-group textarea {
  resize: vertical;
  height: 6.25rem;
  width: 22.44rem;
}

.btn-block {
  width: 8rem;
  height: 3.25rem;
  background: #002266;
  border-radius: 0.5rem 0.5rem 0.5rem 0.5rem;
  font-weight: 600;
  font-size: 1rem;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 页脚样式 */
footer {
  background-color: #002266;
  color: white;
  padding: 6.5rem 0 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.containerInfo {
  width: 75rem;
  display: flex;
  justify-content: space-between;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-column h3 {
  margin-bottom: 2rem;
  color: white;
  font-size: 3.5rem;
  font-weight: 600;
}

.footer-column .footer-links li {
  margin-bottom: 1.5rem;
}

.footer-column h4 {
  font-weight: 600;
  font-size: 1.5rem;
  color: #ffffff;
  margin-bottom: 1.5rem;
}

.footer-column .footer-label {
  font-weight: 400;
  font-size: 1rem;
  color: #ffffff;
}

.footer-links {
  list-style: none;
}

.social-icons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.copyright {
  padding-top: 3rem;
  font-weight: 400;
  font-size: 1rem;
  color: #ffffff;
  text-align: center;
  border-top: 0.06rem solid #ffffff;
  max-width: 100vw;
}