/* 全局样式重置 */
@font-face{
  font-family: 'NotoAnsHans';
  src: url('../../fonts/NotoSansHans-Medium.otf');
}
@font-face{
  font-family: 'NotoAnsHans-Bold';
  src: url('../../fonts/NotoSansHans-Bold.otf');
}
@font-face{
  font-family: 'NotoAnsHans-DemiLight';
  src: url('../../fonts/NotoSansHans-DemiLight.otf');
}
@font-face{
  font-family: 'NotoAnsHans-Light';
  src: url('../../fonts/NotoSansHans-Light.otf');
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'NotoAnsHans';
}

html {
  scroll-behavior: smooth;
  font-size: 62.5%
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.6;
  color: #fff;
  background: #000;
  overflow-x: hidden;
}

:root {
  /* 轻一点背景颜色 */
  --bg1: #6b6b6b;
  /* 重一点背景颜色 */
  --bg2: #444444;
  --tiffany-blue: #fff;
  --dark-tiffany: #2dc3b5;
  --black: #000000;
  --white: #ffffff;
  --gray-light: rgba(255, 255, 255, 0.1);
  --gray-medium: #cccccc;
  --gray-dark: rgba(255, 255, 255, 0.8);
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  /* background: rgba(0, 0, 0, 0.8); */
  /* backdrop-filter: blur(20px); */
  z-index: 1000;
  padding: 3rem 0;
  transition: all 0.3s ease;
  /* border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
}
.navbar.hide {
  transform: translateY(-100%);
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.95);
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.nav-container {
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 11.2rem;
}

.nav-logo {
  font-size: 2.6rem;
  line-height: 4.2rem;
  /* color: var(--tiffany-blue); */
  /* letter-spacing: -0.02em; */
  display: flex;
  align-items: center;
  font-family: "NotoAnsHans-DemiLight";
}

.com-detail {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 1.6rem;
}

/* 导航文字 */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 5rem;
}

.nav-menu a {
  text-decoration: none;
  color: #fff;
  font-size: 1.7rem;
  line-height: 2.4rem;
  font-family: "NotoAnsHans-DemiLight";
  transition: all 0.3s ease;
  position: relative;
}

.nav-menu a:hover {
  color: var(--tiffany-blue);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--tiffany-blue),
    rgba(64, 224, 208, 0.5)
  );
  transition: width 0.3s ease;
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.language-switcher {
  display: flex;
  /* background: rgba(255, 255, 255, 0.1); */
  /* border-radius: 25px; */
  /* padding: 0.3rem; */
  /* border: 1px solid rgba(255, 255, 255, 0.2); */
}
/* 中英文按钮 */
.lang-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  padding: 0.4rem 0.8rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 1.6rem;
  line-height: 1.92rem;
  min-width: 40px;
  font-family: "NotoAnsHans-DemiLight";
}

.lang-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  transition: 0.3s;
  border-radius: 2px;
}

/* 英雄区域 */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 未来感背景 */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* 第一模块黑色遮罩 */
.hero-background-mask {
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0),
    rgba(0, 0, 0, 0.66)
  );
  position: absolute;
  width: 100%;
  height: 100%;
}

.bg-particles {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 25% 25%,
      rgba(64, 224, 208, 0.3) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 75% 75%,
      rgba(255, 255, 255, 0.1) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 50% 50%,
      rgba(64, 224, 208, 0.2) 0%,
      transparent 50%
    );
  animation: particleFloat 20s ease-in-out infinite;
}

.bg-grid {
  position: absolute;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      rgba(64, 224, 208, 0.1) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(64, 224, 208, 0.1) 1px, transparent 1px);
  background-size: 100px 100px;
  animation: gridMove 30s linear infinite;
}

.bg-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1000px;
  height: 1000px;
  background: radial-gradient(
    circle,
    rgba(64, 224, 208, 0.1) 0%,
    transparent 70%
  );
  animation: glowPulse 8s ease-in-out infinite;
}

@keyframes particleFloat {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  33% {
    transform: translate(30px, -30px) rotate(120deg);
  }
  66% {
    transform: translate(-20px, 20px) rotate(240deg);
  }
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(100px, 100px);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0.8;
  }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 1000px;
  padding: 0 40px;
}
/* 第一模块-大标题文字 */
.hero-text {
  margin-top: 19rem;
  margin-bottom: 2rem;
}

.hero-title {
  margin-bottom: 3rem;
}

.title-main {
  /* display: block; */
  font-size: 20rem;
  color: #fff;
  line-height: 20rem;
  font-family: "NotoAnsHans-Blod";
  font-weight: bold;
  /* -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text; */
  /* text-shadow: 0 0 30px rgba(64, 224, 208, 0.5); */
}

.title-sub {
  display: block;
  font-size: 2.2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 9.6rem;
  margin-top: 13.2rem;
}

.stat-item {
  text-align: center;
}
/* 第一模块--数字 */
.stat-number {
  font-size: 4rem;
  margin-bottom: 15px;
  color: var(--tiffany-blue);
  font-family: "NotoAnsHans-Bold";
}

.stat-label {
  font-size: 2.2rem;
  color: rgba(255, 255, 255, 0.8);
  font-family: "NotoAnsHans-DemiLight";
}

/* 防止其他数字抖动的样式 */
.stat-number.stable {
  animation: none !important;
}

/* 只对识别次数应用动画 */
.stat-number.counting {
  animation: countUp 0.5s ease-out;
}

@keyframes countUp {
  from {
    opacity: 0.8;
    transform: scale(1.2);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 滚动提示 */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

.scroll-text {
  font-size: 0.9rem;
  margin-bottom: 10px;
  font-weight: 500;
}

.scroll-arrow {
  animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* 通用模块布局 */
.section-layout {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}

.section-header-left {
  min-width: 300px;
  flex-shrink: 0;
}

/* .section-header-left h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
} */

.section-header-left .work-subtitle {
  font-size: 1rem;
  color: var(--gray-dark);
  margin-top: 10px;
}

.section-content {
  flex: 1;
}

/*-------------------------- ProofX解决了什么-第二模块---------------- */
.what-we-solve {
  padding: 9.6rem 0 4.8rem 0;
  background: var(--bg1);
  height: 100vh;
}

.what-we-solve .container {
    max-width: unset;
    padding: unset;
}


.section-header-left-top {
  text-align: left;
  margin-bottom: 80px;
}

/* 公共标题 */
.section-header-title {
  font-size: 2.4rem;
  color: var(--white);
  line-height: 3.24rem;
  margin-bottom: 5.1rem;
  text-align: center;
  font-family: "NotoAnsHans-Light";
}

.solution-cards {
  display: flex;
  justify-content: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 2rem;
  padding-right: 10rem;
  padding-left: 10rem;
}

.solution-card {
  /* width: calc(20% - 12px);
  min-width: 220px;
  max-width: 260px; */
  /* height: 400px; */

  cursor: pointer;
  position: relative;
  perspective: 1000px;
  flex-shrink: 1;
  height: 51rem;
  aspect-ratio: 0.8 / 1;
}

.card-inner {
  position: relative;
  width: 100%;
    height: 100%;
  text-align: center;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  border-radius: 3rem;
  overflow: hidden;
}

/* 卡片图片 */
.card-image {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.card-image img {
  width: 100%;
  height: 100%;
  transform: scale(1);
  transition: all 0.5s ease;
  position: relative;
}
/* 卡片图片上遮罩 */
.card-mask {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.66);
  z-index: 1;
}

/* 卡片hover动画 */
.card-inner:hover .card-front {
  opacity: 0;
}
/* 卡片hover动画 */
.card-inner:hover .card-image {
  opacity: 1;
}
/* 卡片hover动画 */
.card-inner:hover .card-image img {
  transform: scale(1.2);
}

/* .solution-card:hover .card-inner {
    transform: rotateY(180deg);
} */

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.card-front {
  background: var(--bg2);
  border: 1px solid var(--bg2);
  opacity: 1;
  transition: opacity 0.5s ease;
}

.card-back {
  z-index: 10;
}

/* 卡片图标 */
.card-icon {
  margin-top: 5rem;
    margin-bottom: 3.5rem;
}
.card-back .card-icon img {
  width: 7rem;
}


/* 卡片标题 */
.card-back .card-title {
  color: var(--white);
  margin-bottom: 6rem;
  font-size: 4.2rem;
  line-height: 4.2rem;
  font-family: "NotoAnsHans-Blod";
}

/* 卡片副标题 */
.card-description {
  width: 80%;
  margin: 0 auto;
  font-size: 2rem;
  /* line-height: 3.9rem; */
  text-align: center;
  color: var(--white);
  font-family: "NotoAnsHans-DemiLight";
}

/*---------------------------- 什么是ProofX-第三模块--------------------- */
.what-is-proofx {
  padding: 5.5rem 0 0rem;
  background: var(--bg2);
  height: 100vh;
  overflow: hidden; /* 防止内容超出section */
}
/* 视频 */
.video-solve {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  width: 68%;
  max-width: 100%; /* 确保不超出父容器 */
  height: auto;
  max-height: calc(100vh - 20rem); /* 确保不超出section高度，减去header的高度 */
  border-radius: 5rem;
  margin: auto;
  box-sizing: border-box; /* 包含padding和border在内 */
}

.video-solve video {
  width: 100%;
  height: 100%;
  object-fit: contain; /* 保持视频比例，防止变形和超出 */
}

/* 英文视频稍微小一些以适应不同的内容比例 */
#video-solve-en {
  width: 45%;
}

#video-solve-zh {
  width: 68%;
}
.proofx-header {
  margin-bottom: 4rem;
}

.proofx-main-description {
  width: 76%;
  margin: 3rem auto 0;
  text-align: center;
}

/* 副标题 */
.proofx-main-description .proofx-main-description-text {
  font-size: 6rem;
  line-height: 8rem;
  /* font-family: "NotoAnsHans-Bold"; */
}

.proofx-description {
  margin-bottom: 40px;
}

.proofx-description p {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--gray-dark);
  margin-bottom: 20px;
}

/* 新的简洁演示模块 */
.recognition-demo {
  margin-top: 40px;
}

.demo-container {
  display: flex;
  gap: 60px;
  align-items: center;
  /* background: rgba(255, 255, 255, 0.03); */
  padding: 40px 50px;
  /* border-radius: 20px; */
  /* border: 1px solid rgba(255, 255, 255, 0.1); */
}

/* 左侧步骤列表 */
.steps-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 20px;
  border-radius: 12px;
  transition: all 0.5s ease;
  opacity: 0.6;
}

.step-item.active {
  opacity: 1;
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(10px);
}

.step-number {
  width: 35px;
  height: 35px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.7);
  flex-shrink: 0;
  transition: all 0.5s ease;
}

.step-item.active .step-number {
  background: var(--tiffany-blue);
  color: var(--bg2);
  /* box-shadow: 0 0 20px rgba(64, 224, 208, 0.4); */
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.4;
}

/* 右侧手机演示 */
.phone-demo {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-frame {
  width: 250px;
  height: 500px;
  background: linear-gradient(145deg, #2c2c2c, #1a1a1a);
  border-radius: 35px;
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #000;
  border-radius: 30px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 25px;
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.9);
}

.screen-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  position: relative;
}

/* 手机状态切换 */
.phone-state {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.9);
  transition: all 0.5s ease;
}

.phone-state.active {
  opacity: 1;
  transform: scale(1);
}

/* 状态1：NFC提示 */
.nfc-prompt {
  text-align: center;
  color: var(--white);
}

.prompt-text {
  font-size: 1rem;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
}

.nfc-icon {
  color: var(--tiffany-blue);
  margin-bottom: 25px;
  animation: nfcPulse 2s ease-in-out infinite;
}

.arrow-down {
  color: rgba(255, 255, 255, 0.6);
  animation: arrowBounce 1.5s ease-in-out infinite;
}

/* 状态2：识别动画 */
.recognition-prompt {
  text-align: center;
  color: var(--white);
}

.scanning-animation {
  margin: 30px 0;
  position: relative;
  width: 80px;
  height: 80px;
  margin-left: auto;
  margin-right: auto;
}

.scan-circle {
  width: 80px;
  height: 80px;
  border: 2px solid rgba(64, 224, 208, 0.3);
  border-radius: 50%;
  position: relative;
  animation: circleRotate 1.5s linear infinite;
}

.scan-line {
  position: absolute;
  top: -2px;
  left: 50%;
  width: 4px;
  height: 20px;
  background: var(--tiffany-blue);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: lineGlow 1.5s ease-in-out infinite;
}

.scan-dots {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  gap: 8px;
}

.dot {
  width: 6px;
  height: 6px;
  background: var(--tiffany-blue);
  border-radius: 50%;
  animation: dotPulse 1.2s ease-in-out infinite;
}

.dot:nth-child(2) {
  animation-delay: 0.2s;
}
.dot:nth-child(3) {
  animation-delay: 0.4s;
}

.progress-text {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

/* 状态3：结果展示 */
.result-prompt {
  text-align: center;
  color: var(--white);
}

.success-icon {
  margin-bottom: 20px;
  animation: successPop 0.6s ease-out;
}

.result-text {
  font-size: 1.1rem;
  color: #22c55e;
  font-weight: 600;
  margin-bottom: 25px;
}

.product-info {
  width: 100%;
}

.info-card {
  background: rgba(255, 255, 255, 0.1);
  padding: 15px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.product-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 5px;
}

.product-details {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

/* 新的动画效果 */
@keyframes circleRotate {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes lineGlow {
  0%,
  100% {
    opacity: 0.6;
    box-shadow: 0 0 5px var(--tiffany-blue);
  }
  50% {
    opacity: 1;
    box-shadow: 0 0 15px var(--tiffany-blue);
  }
}

@keyframes dotPulse {
  0%,
  100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
}

@keyframes successPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  60% {
    transform: scale(1.2);
    opacity: 1;
  }
  100% {
    transform: scale(1);
  }
}

/* 为什么选择ProofX */
.why-choose-us {
  padding: 5.5rem 0 0rem;
  background: var(--bg2);
  height: 100vh;
}

.why-choose-us .container{
  max-width: unset;
}

.choose-us-header {
  text-align: center;
  width: 88%;
  margin: 0 auto;
}
.choose-us-header-text {
  font-size: 6rem;
  line-height: 8rem;
  font-family: "NotoAnsHans-Blod";
}

.choose-reasons {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 10rem;
  width: 87.5%;
  margin: 12rem auto 0;
}

.reason-item {
  text-align: center;
  padding: 40px 30px;
  border-radius: 15px;
  transition: all 0.3s ease;
  /* background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1); */
}

.reason-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--tiffany-blue);
}

.reason-icon {
  margin: 0 auto 2.3rem;
  /* background: var(--tiffany-blue); */
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  /* box-shadow: 0 10px 30px rgba(64, 224, 208, 0.3); */
  transition: all 0.3s ease;
}

.reason-icon i {
  font-size: 2rem;
  color: #fff;
}

.reason-icon img {
  width: 7rem;
}

.reason-item h3 {
  font-size: 2.4rem;
  line-height: 3.24rem;
  color: var(--white);
  margin-bottom: 3.5rem;
}

.reason-item p {
  font-size: 1.8rem;
  line-height: 2.64rem;
  color: var(--gray-dark);
}
@media (max-width: 768px) {
  .choose-us-header-text {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .choose-us-header-text {
    font-size: 2rem;
  }
}

/* 联系我们 */
.contact {
  padding: 100px 0;
  background: #111;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-info h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 15px;
}

.contact-info p {
  font-size: 1.1rem;
  color: var(--gray-dark);
  line-height: 1.6;
}

.contact-form {
  background: rgba(255, 255, 255, 0.05);
  padding: 30px;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
  margin-bottom: 25px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  font-family: inherit;
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--tiffany-blue);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.submit-btn {
  width: 100%;
  padding: 15px;
  background: var(--tiffany-blue);
  color: var(--white);
  border: none;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.submit-btn:hover {
  background: var(--dark-tiffany);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(64, 224, 208, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
  }

  .nav-actions {
    flex-direction: row;
    gap: 1rem;
  }

  .language-switcher {
    order: 0;
  }

  .title-main {
    font-size: 3rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 30px;
  }

  .section-layout {
    flex-direction: column;
    gap: 40px;
  }

  .section-header-left {
    min-width: auto;
  }

  .solution-cards {
    justify-content: center;
    gap: 20px;
  }

  .solution-card {
    width: 200px;
    height: 240px;
  }

  .work-header {
    margin-bottom: 40px;
  }

  .work-header h2 {
    font-size: 2rem;
  }

  .work-content {
    flex-direction: column;
    gap: 40px;
    margin-top: 40px;
  }

  .selection-images {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .verification-methods {
    min-width: auto;
    gap: 15px;
  }

  .verification-item {
    padding: 20px 15px;
  }

  .method-icon {
    font-size: 1.5rem;
    width: 35px;
  }

  .verification-item span {
    font-size: 1rem;
  }

  .process-description h3 {
    font-size: 1.5rem;
  }

  .process-description p {
    font-size: 1rem;
  }

  .demo-container {
    flex-direction: column;
    gap: 40px;
    padding: 40px 30px;
  }

  .steps-list {
    gap: 25px;
  }

  .step-item {
    padding: 20px;
  }

  .step-item.active {
    transform: translateY(-5px);
  }

  .step-number {
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }

  .step-title {
    font-size: 1.2rem;
  }

  .step-desc {
    font-size: 0.9rem;
  }

  .phone-frame {
    width: 220px;
    height: 440px;
    padding: 14px;
  }

  .status-bar {
    padding: 10px 18px;
    font-size: 13px;
  }

  .prompt-text {
    font-size: 0.9rem;
    margin-bottom: 25px;
  }

  .scanning-animation {
    width: 60px;
    height: 60px;
  }

  .scan-circle {
    width: 60px;
    height: 60px;
  }

  .info-card {
    padding: 12px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .choose-reasons {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 20px;
  }

  /* 视频容器响应式调整 */
  .what-is-proofx {
    height: auto;
    min-height: 60vh;
    padding: 3rem 0;
  }

  .video-solve {
    width: 90% !important;
    max-height: 50vh;
    border-radius: 2rem;
  }

  #video-solve-en,
  #video-solve-zh {
    width: 90% !important;
  }
}

@media (max-width: 480px) {
  .title-main {
    font-size: 2.5rem;
  }

  .section-header-left h2 {
    font-size: 2rem;
  }

  .solution-cards {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }

  .solution-card {
    width: 90%;
    height: 220px;
  }
  .solution-card .card-back {
    gap: 1rem;
  }
  .solution-card .card-icon img {
    width: 2rem;
  }
  .solution-card .card-back .card-title {
    font-size: 1rem;
  }
  .solution-card .card-back .card-description {
    font-size: 0.6rem;
  }
  .solution-card .card-image img {
    object-fit: cover;
  }

  /* 小屏幕视频调整 */
  .what-is-proofx {
    padding: 2rem 0;
    height: auto;
  }

  .video-solve {
    width: 95% !important;
    max-height: 40vh;
    border-radius: 1.5rem;
  }

  #video-solve-en,
  #video-solve-zh {
    width: 95% !important;
  }

  .proofx-main-description {
    width: 95%;
  }

  .proofx-main-description .proofx-main-description-text {
    font-size: 3rem;
    line-height: 4rem;
  }
}

.home-indicator {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
}

/* 保留原有动画效果 */
@keyframes nfcPulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes arrowBounce {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.6;
  }
  50% {
    transform: translateY(8px);
    opacity: 1;
  }
}

/*--------------------------- 如何工作--第四模块------------------- */
.how-it-works {
  padding: 5rem 0 5rem 0;
  background: var(--bg1);
  height: 100vh;
}


.how-it-works .container{
  /* max-width: 124.6rem; */
  padding: unset;
}

.work-header {
  text-align: center;
  margin-bottom: 30px;
}

.work-subtitle {
  font-size: 2.5rem;
  /* color: #666; */
}

/* 左侧列表按钮 */
.work-content {
  display: flex;
  align-items: flex-start;
  gap: 9rem;
  padding: 1.8rem 1.3rem;
  background: var(--bg2);
  border-radius: 2rem;
  z-index: 5;
  position: relative;
}

.selection-images {
  display: flex;
  justify-content: space-between;
}

/* 如何工作卡片 */
.process-image {
  position: relative;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  justify-content: center;
  margin-bottom: -2rem;
  padding-bottom: 2rem;
  width: 21.2rem;
}

.process-image.active {
  border-color: var(--tiffany-blue);
}
/* 卡片背景 */
.process-image .card-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--bg2);
  border-top-left-radius: 2rem;
  border-top-right-radius: 2rem;
  border-bottom-right-radius: 0;
  border-bottom-left-radius: 0;
  left: 0;
  transition: all 0.5s ease;
}

/* 卡片背景圆角 */
/* 第一个没有左侧圆角 */
.card-bg-noRadius-left::before {
  display: none;
}
/* 最后一个没有右侧圆角 */
.card-bg-noRadius-right:after {
  display: none;
}
.process-image .card-bg::before,
.process-image .card-bg::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 40px;
  height: 40px;
  background: var(--bg1); /* 与body背景色相同 */
  border-radius: 50%;
}

.process-image .card-bg::before {
  left: -40px;
  box-shadow: 20px 20px 0 0 var(--bg2);
  bottom: 2rem;
}

.process-image .card-bg::after {
  right: -40px;
  box-shadow: -20px 20px 0 0 var(--bg2);
  bottom: 2rem;
}

/* 如何工作-图片 */
.process-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 3;
  padding-bottom: 3rem;
}

.image-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  /* background: linear-gradient(transparent, rgba(0, 0, 0, 0.8)); */
  /* color: var(--white); */
  padding: 20px 10px 10px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  color: black;
}

.verification-methods {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}
/* proofx如何工作 按钮 */
.verification-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: 0 4.5rem;
  border: 2px solid #707070;
  border-radius: 15px;
  transition: all 0.3s ease;
  background: var(--bg1);
  cursor: pointer;
  color: var(--bg2);
  gap: 15px;
  justify-content: space-between;
  width: 35.1rem;
  height: 12.1rem;
  /* width: 36.9rem;
  height: 12.6rem; */
}

.verification-item-small {
  font-size: 1.8rem;
  line-height: 1.92rem;
  text-align: center;
  font-family: "NotoAnsHans-Light";
  margin-top: 0.5rem;
}
/* proofx如何工作 选中按钮 */
.verification-item.active {
  border-color: var(--tiffany-blue);
  background: var(--tiffany-blue);
  /* color: var(--white); */
  /* box-shadow: 0 10px 20px rgba(64, 224, 208, 0.2); */
}

.method-icon img {
  /* width: 6.8rem;
  height: 6.8rem; */
  width: 5.8rem;
  height: 5.8rem;
  margin-left: 0.5rem;
}

/* proofx如何工作  图标 */
.verification-item.active .method-icon {
  /* color: var(--white); */
}

.verification-item-large {
  font-size: 2.5rem;
  /* font-size: 2.7rem; */
  line-height: 3.24rem;
  font-family: "";
  font-family: "NotoAnsHans-DemiLight";
  text-align: center;
}

.verification-item span {
  font-size: 1.1rem;
  font-weight: 600;
  text-align: left;
  flex: 1;
}

.process-description {
  position: relative;
  /* min-height: 370px; */
  flex: 1;
}

.process-description .description-content {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
  /* margin-top: 2.5rem; */
  height: 36.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.process-description .description-content .description-content-inner{
  width: 100%;
}

.process-description .description-content .content-left,
.process-description .description-content .content-right {
  width: 50%;
}

.process-description .description-content.active {
  opacity: 1;
  transform: translateY(0);
}
/* 中文 */

.process-description .bigTitle_zh {
  font-size: 2.5rem;
  line-height: 3rem;
  font-family: "NotoAnsHans-Bold";
  margin-bottom: 1.2rem;
}
/* 英文 */
.process-description .bigTitle_en{
  font-size: 2.5rem;
  line-height: 2rem;
  margin-bottom: 1rem;
}

.process-description p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: #666;
  margin-bottom: 15px;
}

.process-features {
  display: flex;
  flex-direction: column;
  /* gap: 10px; */
  margin-bottom: 1rem;
}


.process-features-content {
  display: flex;
  gap: 2rem;
}

/* 中文 */
.process-features .title {
  font-size: 2rem;
  line-height: 2.6rem;
  /* color: #666; */
}
/* 英文 */
.process-features .process-features-title_en{
  font-size: 2rem;
  line-height: 3rem;
}

/* 中文 */
.process-features .desc_zh {
  font-size: 1.9rem;
  line-height: 2.5rem;
  color: var(--tiffany-blue);
  font-family: "NotoAnsHans-DemiLight";
  position: relative;
  display: flex;
  align-items: center;
  margin-left: 16px;
}
/* 英文 */
.process-features .desc_en{
  font-size: 1.6rem;
  line-height: 2.5rem;
}

.process-features span::before {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  background: #fff; /* 与body背景色相同 */
  border-radius: 50%;
 left: -14px;
  margin-right: 3px;
}

/* 底部 */
.footer{
  background-color: var(--bg2);
}
.footer .footer-content {
  display: flex;
  justify-content: space-between;
  padding: 3rem 0;
}

.footer-content-right .h3 {
  margin-bottom: 50px;
}

.footer-content-right .title {
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.footer-content-right .link .link-item {
  padding: 5px 0;
  font-weight: 200;
  font-size: 1.6rem;
}
.footer-content-right .link {
  margin-top: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.contact-item i {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #fff 0%, rgba(255, 255, 255, 0.8) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 1.5rem;
}

.contact-item h2 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #fff;
}

.contact-item p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
}

/* 页脚联系我们模块样式 - 新风格 */
.footer-contact {
  color: #fff;
  padding: 60px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  background-color: var(--bg1);
}

.footer-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.footer-contact .container {
  position: relative;
  z-index: 2;
}

.footer-header {
  text-align: left;
  margin-bottom: 40px;
}

.footer-header .section-label {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 10px;
  position: relative;
  display: inline-block;
  padding-left: 20px;
}

.footer-header .section-label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 10px;
  height: 2px;
  background-color: #fff;
  transform: translateY(-50%);
}

.footer-header p {
  font-size: 16px;
  opacity: 0.8;
  margin: 0;
}

/* 新的选项卡式设计 */
.office-locations {
  margin-bottom: 40px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.locations-tabs {
  display: flex;
  flex-wrap: nowrap;
  background: rgba(0, 0, 0, 0.3);
  overflow-x: auto;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.location-tab {
  flex: 1;
  padding: 15px 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
  min-width: 120px;
  text-align: center;
  position: relative;
  font-weight: 500;
  white-space: nowrap;
  color: rgba(255, 255, 255, 0.7);
}

.location-tab.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.location-tab.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: #fff;
}

.location-tab:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.location-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.location-icon img,
.location-icon svg {
  width: 24px;
  height: 24px;
  color: white;
  fill: currentColor;
}

.location-tab.active .location-icon svg {
  color: white;
}

.location-tab:hover .location-icon svg {
  transform: scale(1.1);
  transition: transform 0.3s ease;
}

.location-name h3 {
  margin: 0;
  font-size: 1.8rem;
  font-family: "NotoAnsHans-Blod";
  text-transform: uppercase;
  letter-spacing: 1px;
}

.location-name p {
  margin: 5px 0 0;
  font-size: 12px;
  opacity: 0.7;
}

.location-info {
  padding: 30px;
}

.location-details {
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.location-details.active {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  padding: 15px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  transition: all 0.3s ease;
  flex: 1;
  min-width: 250px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-icon {
  width: 40px;
  height: 40px;
  margin-right: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  flex-shrink: 0;
}

.contact-text {
  font-size: 15px;
  line-height: 1.6;
}

.footer-links {
  margin: 30px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.footer-links a {
  color: #fff;
  opacity: 0.7;
  text-decoration: none;
  transition: all 0.3s;
  font-size: 14px;
  padding: 5px 10px;
  border-radius: 4px;
}

.footer-links a:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
}

.separator {
  display: none; /* 隐藏分隔符，使用flex布局和gap替代 */
}

.footer-copyright {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
  margin: 0;
  line-height: 1.6;
}

.sitemap-link {
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: all 0.3s;
  padding: 5px 10px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.sitemap-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .footer-contact {
    padding: 40px 0 20px;
  }

  .location-tab {
    padding: 10px 15px;
  }

  .location-icon {
    width: 30px;
    height: 30px;
    margin-bottom: 5px;
  }

  .location-info {
    padding: 20px;
  }

  .contact-item {
    min-width: 100%;
  }

  .footer-copyright {
    flex-direction: column;
    text-align: center;
  }

  .sitemap-link {
    margin-top: 10px;
  }
}