/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  overflow-x: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

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

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 通用按钮 */
.btn {
  display: inline-block;
  padding: 12px 32px;
  background-color: #993399;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: #7a2a7a;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(153, 51, 153, 0.3);
}

/* 无障碍隐藏 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* 导航栏 */
nav {
  position: sticky;
  top: 0;
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  padding: 16px 0;
}

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

nav .logo {
  font-size: 24px;
  font-weight: bold;
  color: #993399;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 32px;
}

nav a {
  color: #333;
  font-weight: 500;
}

nav a:hover {
  color: #993399;
}

/* 移动端导航 */
@media (max-width: 768px) {
  nav ul {
    gap: 16px;
    font-size: 14px;
  }
}

/* 页脚 */
footer {
  background-color: #f8f8f8;
  padding: 48px 0 24px;
  margin-top: 80px;
}

footer .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

footer h3 {
  margin-bottom: 16px;
  color: #993399;
}

footer p, footer a {
  margin-bottom: 8px;
  color: #666;
}

footer a:hover {
  color: #993399;
}

footer .copyright {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid #ddd;
  color: #999;
}

@media (max-width: 768px) {
  footer .container {
    grid-template-columns: 1fr;
  }
}

/* Hero 区域 - 方案 A */
.hero-7468f8 {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero-7468f8::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
}

.hero-7468f8 .container {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-7468f8-square {
  flex: 0 0 400px;
  aspect-ratio: 1 / 1;
}

.hero-7468f8-square img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.hero-7468f8-content {
  flex: 1;
  color: #fff;
}

.hero-7468f8-content h1 {
  font-size: 48px;
  margin-bottom: 24px;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .hero-7468f8 .container {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-7468f8-square {
    flex: 0 0 300px;
  }
  
  .hero-7468f8-content h1 {
    font-size: 32px;
  }
}

/* 关于我们块 */
.story-7468f8 {
  padding: 80px 0;
  background-color: rgba(255, 255, 153, 0.2);
}

.story-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.story-7468f8-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.story-7468f8-image img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.story-7468f8-text {
  font-size: 18px;
  line-height: 1.8;
  color: #555;
}

@media (max-width: 768px) {
  .story-7468f8-content {
    grid-template-columns: 1fr;
  }
}

/* 服务块 */
.expertise-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.expertise-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.expertise-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.expertise-7468f8-item {
  text-align: center;
  padding: 32px 24px;
  background-color: #f8f8f8;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.expertise-7468f8-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.expertise-7468f8-item i {
  font-size: 48px;
  color: #993399;
  margin-bottom: 16px;
}

.expertise-7468f8-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #333;
}

.expertise-7468f8-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .expertise-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 优势块 */
.edge-7468f8 {
  padding: 80px 0;
  background-color: #f8f8f8;
}

.edge-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.edge-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.edge-7468f8-item {
  text-align: center;
  padding: 32px 24px;
  background-color: #fff;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.edge-7468f8-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.edge-7468f8-item i {
  font-size: 48px;
  color: #99ccff;
  margin-bottom: 16px;
}

.edge-7468f8-item h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #333;
}

.edge-7468f8-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .edge-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 案例块 - 跑马灯 */
.showcase-7468f8 {
  padding: 80px 0;
  background-color: rgba(255, 255, 153, 0.2);
  overflow: hidden;
}

.showcase-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.showcase-7468f8-wrapper {
  overflow: hidden;
  position: relative;
}

.showcase-7468f8-track {
  display: flex;
  gap: 24px;
  animation: scroll-showcase 30s linear infinite;
}

.showcase-7468f8-track:hover {
  animation-play-state: paused;
}

.showcase-7468f8-item {
  flex: 0 0 350px;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.showcase-7468f8-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.showcase-7468f8-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 0;
}

.showcase-7468f8-item h3 {
  padding: 16px 20px 8px;
  font-size: 18px;
  color: #333;
}

.showcase-7468f8-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: #666;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

@keyframes scroll-showcase {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 首页文章块 */
.updates-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.updates-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.updates-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.updates-7468f8-item {
  background-color: #f8f8f8;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.updates-7468f8-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.updates-7468f8-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 0;
}

.updates-7468f8-item h3 {
  padding: 16px 20px 8px;
  font-size: 16px;
  color: #333;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.updates-7468f8-item p {
  padding: 0 20px 16px;
  font-size: 13px;
  color: #999;
}

.updates-7468f8-item p:last-child {
  color: #666;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

@media (max-width: 768px) {
  .updates-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 工作流程块 - 横向时间轴 */
.journey-7468f8 {
  padding: 80px 0;
  background-color: #f8f8f8;
}

.journey-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.journey-7468f8-timeline {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  padding: 40px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.journey-7468f8-timeline::-webkit-scrollbar {
  display: none;
}

.journey-7468f8-timeline::before {
  content: '';
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: #993399;
}

.journey-7468f8-step {
  flex: 0 0 200px;
  text-align: center;
  position: relative;
}

.journey-7468f8-step::before {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 16px;
  background-color: #993399;
  border-radius: 50%;
  border: 4px solid #fff;
  box-shadow: 0 0 0 2px #993399;
}

.journey-7468f8-step img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 16px;
  border: 3px solid #993399;
}

.journey-7468f8-step h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: #333;
}

.journey-7468f8-step p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .journey-7468f8-timeline {
    flex-direction: column;
    align-items: center;
  }
  
  .journey-7468f8-timeline::before {
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
  }
  
  .journey-7468f8-step {
    margin-bottom: 40px;
  }
  
  .journey-7468f8-step::before {
    top: 60px;
    left: -100px;
  }
}

/* 团队块 */
.crew-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.crew-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.crew-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.crew-7468f8-member {
  text-align: center;
  padding: 24px;
  background-color: #f8f8f8;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.crew-7468f8-member:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.crew-7468f8-member img {
  width: 150px;
  height: 150px;
  margin: 0 auto 16px;
  border-radius: 0;
  border: 3px solid #993399;
}

.crew-7468f8-member h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: #333;
}

.crew-7468f8-member p {
  font-size: 14px;
  color: #999;
}

@media (max-width: 768px) {
  .crew-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 评论块 - 跑马灯 */
.voices-7468f8 {
  padding: 80px 0;
  background-color: #f8f8f8;
  overflow: hidden;
}

.voices-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.voices-7468f8-wrapper {
  overflow: hidden;
  position: relative;
}

.voices-7468f8-track {
  display: flex;
  gap: 24px;
  animation: scroll-voices 25s linear infinite;
}

.voices-7468f8-track:hover {
  animation-play-state: paused;
}

.voices-7468f8-item {
  flex: 0 0 400px;
  background-color: #fff;
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  position: relative;
}

.voices-7468f8-item::before {
  content: '"';
  position: absolute;
  top: 16px;
  left: 24px;
  font-size: 64px;
  color: #99ccff;
  opacity: 0.3;
  font-family: Georgia, serif;
}

.voices-7468f8-item p:first-of-type {
  font-size: 16px;
  line-height: 1.8;
  color: #555;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.voices-7468f8-item h4 {
  font-size: 16px;
  color: #333;
  margin-bottom: 4px;
}

.voices-7468f8-item p:last-of-type {
  font-size: 14px;
  color: #999;
}

@keyframes scroll-voices {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 问答块 - 双列布局 */
.queries-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.queries-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.queries-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.queries-7468f8-item {
  background-color: #f8f8f8;
  padding: 24px;
  border-radius: 8px;
  border-left: 4px solid #993399;
}

.queries-7468f8-item h3 {
  font-size: 18px;
  color: #333;
  margin-bottom: 12px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.queries-7468f8-item h3::after {
  content: '+';
  font-size: 24px;
  color: #993399;
}

.queries-7468f8-item.active h3::after {
  content: '−';
}

.queries-7468f8-item p {
  font-size: 15px;
  color: #666;
  line-height: 1.8;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.queries-7468f8-item.active p {
  max-height: 500px;
  margin-top: 12px;
}

@media (max-width: 768px) {
  .queries-7468f8-grid {
    grid-template-columns: 1fr;
  }
}

/* 合作伙伴块 - 跑马灯 */
.allies-7468f8 {
  padding: 80px 0;
  background-color: #f8f8f8;
  overflow: hidden;
}

.allies-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.allies-7468f8-wrapper {
  overflow: hidden;
  position: relative;
}

.allies-7468f8-track {
  display: flex;
  gap: 32px;
  animation: scroll-allies 40s linear infinite;
}

.allies-7468f8-track:hover {
  animation-play-state: paused;
}

.allies-7468f8-item {
  flex: 0 0 150px;
  height: 300px;
  background-color: #fff;
  border-radius: 8px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.allies-7468f8-item:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.allies-7468f8-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes scroll-allies {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* 荣誉块 */
.laurels-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.laurels-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.laurels-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.laurels-7468f8-item {
  text-align: center;
  padding: 40px 24px;
  background: linear-gradient(135deg, #993399 0%, #99ccff 100%);
  border-radius: 8px;
  color: #fff;
  transition: all 0.3s ease;
}

.laurels-7468f8-item:hover {
  transform: translateY(-8px) scale(1.05);
  box-shadow: 0 12px 32px rgba(153, 51, 153, 0.3);
}

.laurels-7468f8-item h3 {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 16px;
}

.laurels-7468f8-item p {
  font-size: 16px;
  opacity: 0.95;
}

@media (max-width: 768px) {
  .laurels-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 联系我们块 */
.reach-7468f8 {
  padding: 80px 0;
  background-color: #f8f8f8;
}

.reach-7468f8 h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.reach-7468f8-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.reach-7468f8-info {
  background-color: #fff;
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.reach-7468f8-info-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 24px;
}

.reach-7468f8-info-item i {
  font-size: 24px;
  color: #993399;
  margin-right: 16px;
  margin-top: 4px;
}

.reach-7468f8-info-item div h3 {
  font-size: 16px;
  color: #333;
  margin-bottom: 4px;
}

.reach-7468f8-info-item div p {
  font-size: 15px;
  color: #666;
  line-height: 1.6;
}

.reach-7468f8-form {
  background-color: #fff;
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.reach-7468f8-form form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.reach-7468f8-form input,
.reach-7468f8-form textarea {
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.reach-7468f8-form input:focus,
.reach-7468f8-form textarea:focus {
  outline: none;
  border-color: #993399;
}

.reach-7468f8-form textarea {
  min-height: 120px;
  resize: vertical;
}

@media (max-width: 768px) {
  .reach-7468f8-content {
    grid-template-columns: 1fr;
  }
}

/* CTA 块 */
.cta-7468f8 {
  padding: 80px 0;
  background: linear-gradient(135deg, #993399 0%, #99ccff 100%);
  text-align: center;
  color: #fff;
}

.cta-7468f8 h2 {
  font-size: 36px;
  margin-bottom: 24px;
}

.cta-7468f8 .btn {
  background-color: #fff;
  color: #993399;
  font-size: 18px;
  padding: 16px 48px;
}

.cta-7468f8 .btn:hover {
  background-color: #ffff99;
  color: #993399;
}

/* 列表页 */
.listing-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.listing-7468f8 h1 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 48px;
  color: #993399;
}

.listing-7468f8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.listing-7468f8-item {
  background-color: #f8f8f8;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.listing-7468f8-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.listing-7468f8-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 0;
}

.listing-7468f8-item h3 {
  padding: 16px 20px 8px;
  font-size: 18px;
  color: #333;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.listing-7468f8-item p {
  padding: 0 20px 16px;
  font-size: 13px;
  color: #999;
}

.listing-7468f8-item p:last-child {
  color: #666;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

@media (max-width: 768px) {
  .listing-7468f8-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

/* 详情页 */
.reading-7468f8 {
  padding: 80px 0;
  background-color: #fff;
}

.reading-7468f8-header {
  max-width: 800px;
  margin: 0 auto 48px;
  text-align: center;
}

.reading-7468f8-header h1 {
  font-size: 36px;
  margin-bottom: 16px;
  color: #333;
  line-height: 1.4;
}

.reading-7468f8-meta {
  font-size: 14px;
  color: #999;
  margin-bottom: 24px;
}

.reading-7468f8-header img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.reading-7468f8-content {
  max-width: 800px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.8;
  color: #333;
}

.reading-7468f8-content p {
  margin-bottom: 24px;
}

.reading-7468f8-content h2 {
  font-size: 28px;
  margin: 40px 0 16px;
  color: #993399;
}

.reading-7468f8-content h3 {
  font-size: 22px;
  margin: 32px 0 12px;
  color: #333;
}

.reading-7468f8-content img {
  width: 100%;
  margin: 32px 0;
  border-radius: 8px;
}

.reading-7468f8-nav {
  max-width: 800px;
  margin: 64px auto 0;
  padding-top: 32px;
  border-top: 1px solid #ddd;
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.reading-7468f8-nav a {
  flex: 1;
  padding: 16px 24px;
  background-color: #f8f8f8;
  border-radius: 8px;
  text-align: center;
  color: #333;
  transition: all 0.3s ease;
}

.reading-7468f8-nav a:hover {
  background-color: #993399;
  color: #fff;
  transform: translateY(-4px);
}

@media (max-width: 768px) {
  .reading-7468f8-nav {
    flex-direction: column;
  }
}

/* 淡入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式优化 */
@media (max-width: 320px) {
  .container {
    padding: 0 16px;
  }
  
  h2 {
    font-size: 28px !important;
  }
  
  .btn {
    padding: 10px 24px;
    font-size: 14px;
  }
}