* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: #0d7377;
  font-size: 16px;
  overflow-x: hidden;
  position: relative;
  height: 100%;
}

/* 背景动画效果 */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(13, 115, 119, 0.8) 0%,
    rgba(6, 167, 167, 0.8) 50%,
    rgba(6, 155, 130, 0.548) 100%
  );
  animation: gradientShift 15s ease infinite;
  z-index: -1;
}

@keyframes gradientShift {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

/* 导航栏 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  animation: slideDown 0.8s ease;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  animation: fadeIn 1s ease 0.3s both;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.2);
  padding: 3px;
}

.app-name {
  font-size: 22px;
  font-weight: 600;
  color: white;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.share-btn {
  padding: 12px 26px;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 25px;
  color: white;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  animation: fadeIn 1s ease 0.5s both;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 主要内容 */
.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 60px 80px 60px 40px;
  max-width: 1600px;
  margin: 0 auto;
  gap: 60px;
}

.content-left {
  flex: 1;
  max-width: 700px;
}

.main-title {
  font-size: 64px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  animation: slideInLeft 1s ease 0.2s both;
}

@keyframes slideInLeft {
  from {
    transform: translateX(-50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.subtitle {
  font-size: 24px;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 10px;
  animation: slideInLeft 1s ease 0.4s both;
}

.description {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 50px;
  animation: slideInLeft 1s ease 0.6s both;
}

/* 特性网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 40px;
  animation: slideInLeft 1s ease 0.6s both;
}

.feature-card {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  background: rgba(255, 255, 255, 0.35);
}

.feature-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #13c2c2;
}

.feature-icon svg {
  width: 36px;
  height: 36px;
}

.feature-content {
  flex: 1;
}

.feature-title {
  font-size: 19px;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}

.feature-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.6;
}

.download-section {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

.qr-code {
  animation: fadeInScale 1s ease 0.8s both;
}

@keyframes fadeInScale {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.qr-image {
  width: 150px;
  height: 150px;
  background: white;
  padding: 5px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 10px;
  transition: transform 0.3s ease;
}

.qr-image:hover {
  transform: scale(1.05) rotate(2deg);
}

.qr-text {
  text-align: center;
  color: white;
  font-size: 14px;
  margin-top: 10px;
}

.download-buttons {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.download-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 30px;
  background: white;
  border-radius: 30px;
  text-decoration: none;
  color: #333;
  font-size: 17px;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
  animation: slideInRight 1s ease both;
}

.android-btn {
  animation-delay: 1s;
}

.ios-btn {
  animation-delay: 1.2s;
}

@keyframes slideInRight {
  from {
    transform: translateX(50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.download-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
}

.btn-icon {
  width: 24px;
  height: 24px;
}

.android-btn .btn-icon {
  color: #3ddc84;
}

.ios-btn .btn-icon {
  color: #000;
}

/* 手机展示 */
.content-right {
  flex: 1;
  position: relative;
  height: 600px;
  animation: fadeIn 1.5s ease 0.5s both;
}

.phone-mockup {
  position: absolute;
  width: 280px;
  height: 560px;
  transition: transform 0.3s ease;
}

.phone-1 {
  left: 50px;
  top: 50px;
  z-index: 2;
  animation: floatPhone1 3s ease-in-out infinite;
}

.phone-2 {
  right: 50px;
  top: 0;
  z-index: 1;
  animation: floatPhone2 3s ease-in-out infinite;
}

@keyframes floatPhone1 {
  0%,
  100% {
    transform: translateY(0) rotate(-5deg);
  }
  50% {
    transform: translateY(-20px) rotate(-5deg);
  }
}

@keyframes floatPhone2 {
  0%,
  100% {
    transform: translateY(0) rotate(5deg);
  }
  50% {
    transform: translateY(-15px) rotate(5deg);
  }
}

.phone-mockup:hover {
  transform: scale(1.05) !important;
}

.phone-screen {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* 页脚 */
.footer {
  text-align: center;
  color: rgba(255, 255, 255);
  font-size: 14px;
  animation: fadeIn 1.5s ease 1.5s both;
  position: fixed;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* 悬浮侧边工具栏 */
.floating-toolbar {
  position: fixed;
  right: 30px;
  bottom: 10%;
  background: linear-gradient(
    135deg,
    rgba(6, 165, 165, 0.9) 50%,
    rgba(6, 155, 130, 0.9) 100%
  );
  border-radius: 30px;
  padding: 15px 0;
  z-index: 1000;
  width: 100px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  animation: slideInRight 1s ease 0.5s both;
  transition: all 0.3s ease;
  border: 1px solid #ffffff56;
}

.floating-toolbar:hover {
  transform: translateY(-50%) scale(1.02);
}

.toolbar-logo-img {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.575);
  padding: 3px;
}

.toolbar-title {
  color: white;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 5px;
  letter-spacing: 0.5px;
}

.toolbar-divider {
  width: 70%;
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
  margin: 5px 0;
}

.toolbar-btn {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  border-radius: 15px;
  width: 90%;
}

.toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(-5px);
}

.toolbar-btn:active {
  transform: translateX(-5px) scale(0.95);
}

.toolbar-btn svg {
  width: 28px;
  height: 28px;
}

.toolbar-btn span {
  font-size: 11px;
  text-align: center;
  line-height: 1.3;
  font-weight: 500;
}

/* 视频弹窗 */
.video-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.video-modal.active {
  display: flex;
}

.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 1000px;
  background: #000;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.video-close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.video-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.video-close-btn svg {
  width: 24px;
  height: 24px;
  color: white;
}

#demoVideo {
  width: 100%;
  height: auto;
  display: block;
  max-height: 80vh;
}

/* 联系我们弹窗 */
.contact-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.contact-modal.active {
  display: flex;
}

.contact-modal-content {
  position: relative;
  width: 90%;
  max-width: 500px;
  background: linear-gradient(
    135deg,
    rgba(13, 115, 119, 0.95) 0%,
    rgba(6, 167, 167, 0.95) 50%,
    rgba(6, 155, 130, 0.95) 100%
  );
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  animation: scaleIn 0.3s ease;
  color: white;
}

.contact-close-btn {
  position: absolute;
  top: 15px;
  right: 15px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.contact-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg);
}

.contact-close-btn svg {
  width: 24px;
  height: 24px;
  color: white;
}

.contact-header {
  padding: 20px 10px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-header svg {
  width: 35px;
  height: 35px;
  margin-bottom: 15px;
  color: white;
}

.contact-header h2 {
  font-size: 25px;
  font-weight: 600;
  margin: 0;
  color: white;
}

.contact-body {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateX(5px);
}

.contact-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg {
  width: 28px;
  height: 28px;
  color: white;
}

.contact-info {
  flex: 1;
}

.contact-info h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 5px 0;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.5px;
}

.contact-info p {
  font-size: 16px;
  font-weight: 500;
  margin: 0;
  color: white;
}

/* 响应式设计 */

/* 4K 超高清屏幕 (3840px+) */
@media (min-width: 3840px) {
  .container {
    max-width: 2400px;
    padding: 100px 120px;
    gap: 120px;
  }

  .content-left {
    max-width: 1000px;
  }

  .main-title {
    font-size: 80px;
  }

  .features-grid {
    gap: 25px;
  }

  .feature-card {
    padding: 30px;
  }

  .feature-icon {
    width: 80px;
    height: 80px;
    min-width: 80px;
  }

  .feature-icon svg {
    width: 48px;
    height: 48px;
  }

  .feature-title {
    font-size: 26px;
  }

  .feature-desc {
    font-size: 18px;
  }

  .qr-image {
    width: 200px;
    height: 200px;
  }

  .download-btn {
    padding: 18px 36px;
    font-size: 20px;
  }

  .phone-mockup {
    width: 400px;
    height: 800px;
  }

  .content-right {
    height: 900px;
  }

  .floating-toolbar {
    right: 40px;
    width: 140px;
    padding: 20px 0;
  }

  .toolbar-logo-img {
    width: 70px;
    height: 70px;
  }

  .toolbar-title {
    font-size: 20px;
  }

  .toolbar-btn {
    padding: 18px 12px;
    gap: 12px;
  }

  .toolbar-btn svg {
    width: 38px;
    height: 38px;
  }

  .toolbar-btn span {
    font-size: 16px;
  }
}

/* 2K 高清屏幕 (2560px - 3839px) */
@media (min-width: 2560px) and (max-width: 3839px) {
  .container {
    max-width: 2000px;
    padding: 80px 100px;
    gap: 100px;
  }

  .content-left {
    max-width: 850px;
  }

  .main-title {
    font-size: 68px;
  }

  .features-grid {
    gap: 20px;
  }

  .feature-card {
    padding: 26px;
  }

  .feature-icon {
    width: 70px;
    height: 70px;
    min-width: 70px;
  }

  .feature-icon svg {
    width: 42px;
    height: 42px;
  }

  .feature-title {
    font-size: 22px;
  }

  .feature-desc {
    font-size: 16px;
  }

  .qr-image {
    width: 180px;
    height: 180px;
  }

  .download-btn {
    padding: 16px 32px;
    font-size: 18px;
  }

  .phone-mockup {
    width: 340px;
    height: 680px;
  }

  .content-right {
    height: 750px;
  }

  .floating-toolbar {
    right: 35px;
    width: 125px;
    padding: 18px 0;
  }

  .toolbar-logo-img {
    width: 62px;
    height: 62px;
  }

  .toolbar-title {
    font-size: 18px;
  }

  .toolbar-btn {
    padding: 16px 11px;
    gap: 11px;
  }

  .toolbar-btn svg {
    width: 34px;
    height: 34px;
  }

  .toolbar-btn span {
    font-size: 14px;
  }
}

/* 标准 1080p 屏幕 (1920px - 2559px) - 默认样式已覆盖 */
@media (min-width: 1920px) and (max-width: 2559px) {
  .container {
    max-width: 1600px;
    padding: 60px 80px 60px 40px;
  }

  .content-left {
    max-width: 700px;
  }

  .main-title {
    font-size: 56px;
  }

  .floating-toolbar {
    right: 30px;
    width: 110px;
    padding: 16px 0;
  }

  .toolbar-logo-img {
    width: 55px;
    height: 55px;
  }

  .toolbar-title {
    font-size: 16px;
  }

  .toolbar-btn {
    padding: 14px 10px;
    gap: 10px;
  }

  .toolbar-btn svg {
    width: 30px;
    height: 30px;
  }

  .toolbar-btn span {
    font-size: 13px;
  }
}

/* 笔记本/小屏桌面 (1366px - 1919px) */
@media (min-width: 1366px) and (max-width: 1919px) {
  .container {
    max-width: 1300px;
    padding: 50px 60px;
    gap: 60px;
  }

  .content-left {
    max-width: 600px;
  }

  .main-title {
    font-size: 48px;
  }

  .feature-card {
    padding: 18px;
  }

  .feature-icon {
    width: 55px;
    height: 55px;
    min-width: 55px;
  }

  .feature-icon svg {
    width: 32px;
    height: 32px;
  }

  .feature-title {
    font-size: 17px;
  }

  .feature-desc {
    font-size: 12px;
  }

  .phone-mockup {
    width: 260px;
    height: 520px;
  }

  .content-right {
    height: 550px;
  }

  .floating-toolbar {
    right: 25px;
    width: 108px;
    padding: 16px 0;
  }

  .toolbar-logo-img {
    width: 54px;
    height: 54px;
  }

  .toolbar-title {
    font-size: 15px;
  }

  .toolbar-btn {
    padding: 14px 9px;
    gap: 9px;
  }

  .toolbar-btn svg {
    width: 29px;
    height: 29px;
  }

  .toolbar-btn span {
    font-size: 12px;
  }
}

/* 平板横屏 (1025px - 1365px) */
@media (min-width: 1025px) and (max-width: 1365px) {
  .container {
    padding: 40px 50px;
    gap: 50px;
  }

  .content-left {
    max-width: 500px;
  }

  .main-title {
    font-size: 40px;
  }

  .features-grid {
    gap: 12px;
  }

  .feature-card {
    padding: 16px;
  }

  .feature-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
  }

  .feature-icon svg {
    width: 30px;
    height: 30px;
  }

  .feature-title {
    font-size: 16px;
  }

  .feature-desc {
    font-size: 11px;
  }

  .phone-mockup {
    width: 220px;
    height: 440px;
  }

  .content-right {
    height: 500px;
  }

  .download-btn {
    padding: 12px 24px;
    font-size: 14px;
  }

  .qr-image {
    width: 130px;
    height: 130px;
  }

  .floating-toolbar {
    right: 20px;
    width: 105px;
    padding: 16px 0;
  }

  .toolbar-logo-img {
    width: 52px;
    height: 52px;
  }

  .toolbar-title {
    font-size: 15px;
  }

  .toolbar-btn {
    padding: 13px 9px;
    gap: 9px;
  }

  .toolbar-btn svg {
    width: 28px;
    height: 28px;
  }

  .toolbar-btn span {
    font-size: 12px;
  }
}

/* 平板竖屏 (768px - 1024px) */
@media (max-width: 1024px) {
  .container {
    flex-direction: column;
    padding: 40px 30px;
    gap: 60px;
  }

  .content-left {
    max-width: 100%;
    text-align: center;
  }

  .main-title {
    font-size: 42px;
  }

  .download-section {
    justify-content: center;
  }

  .content-right {
    height: 400px;
    width: 100%;
    max-width: 600px;
  }

  .phone-mockup {
    width: 220px;
    height: 440px;
  }

  .floating-toolbar {
    right: 20px;
    width: 100px;
    padding: 15px 0;
  }

  .toolbar-logo-img {
    width: 50px;
    height: 50px;
  }

  .toolbar-title {
    font-size: 14px;
  }

  .toolbar-btn {
    padding: 12px 8px;
    gap: 8px;
  }

  .toolbar-btn svg {
    width: 27px;
    height: 27px;
  }

  .toolbar-btn span {
    font-size: 11px;
  }
}

/* 移动端 - 大屏手机横屏/小平板 (481px - 768px) */
@media (max-width: 768px) {
  .navbar {
    padding: 15px 20px;
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .logo {
    flex-direction: column;
    gap: 0;
  }

  .logo-icon {
    width: 70px;
    height: 70px;
  }

  .app-name {
    display: none;
  }

  .share-btn {
    display: none;
  }

  .container {
    padding: 30px 20px;
  }

  .content-left {
    text-align: center;
  }

  .main-title {
    font-size: 36px;
  }

  .subtitle {
    font-size: 20px;
  }

  .description {
    font-size: 15px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 30px;
  }

  .feature-card {
    padding: 15px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .feature-icon {
    width: 50px;
    height: 50px;
    min-width: 50px;
  }

  .feature-icon svg {
    width: 28px;
    height: 28px;
  }

  .feature-title {
    font-size: 16px;
    margin-bottom: 0;
  }

  .feature-desc {
    display: none;
  }

  .download-section {
    flex-direction: column;
    align-items: center;
    gap: 25px;
  }

  .qr-image {
    width: 120px;
    height: 120px;
  }

  .download-btn {
    padding: 12px 24px;
    font-size: 15px;
  }

  .content-right {
    height: 350px;
  }

  .phone-mockup {
    width: 180px;
    height: 360px;
  }

  .floating-toolbar {
    right: 15px;
    width: 95px;
    padding: 14px 0;
  }

  .toolbar-logo-img {
    width: 48px;
    height: 48px;
  }

  .toolbar-title {
    font-size: 14px;
  }

  .toolbar-btn {
    padding: 12px 8px;
    gap: 8px;
  }

  .toolbar-btn svg {
    width: 26px;
    height: 26px;
  }

  .toolbar-btn span {
    font-size: 12px;
  }
}

/* 移动端 - 标准手机 (376px - 480px) */
@media (max-width: 480px) {
  .navbar {
    padding: 12px 15px;
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .logo {
    flex-direction: column;
    gap: 0;
  }

  .logo-icon {
    width: 65px;
    height: 65px;
  }

  .app-name {
    display: none;
  }

  .share-btn {
    display: none;
  }

  .container {
    padding: 20px 15px;
    gap: 40px;
  }

  .main-title {
    font-size: 28px;
    margin-bottom: 15px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 25px;
  }

  .feature-card {
    padding: 12px;
    gap: 8px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .feature-icon {
    width: 35px;
    height: 35px;
    min-width: 35px;
  }

  .feature-icon svg {
    width: 24px;
    height: 24px;
  }

  .feature-title {
    font-size: 15px;
    margin-bottom: 0;
  }

  .feature-desc {
    display: none;
  }

  .download-section {
    gap: 20px;
  }

  .qr-image {
    width: 100px;
    height: 100px;
  }

  .qr-text {
    font-size: 12px;
  }

  .download-btn {
    padding: 12px 22px;
    font-size: 15px;
    width: 100%;
    max-width: 220px;
    justify-content: center;
  }

  .btn-icon {
    width: 20px;
    height: 20px;
  }

  .content-right {
    height: 300px;
  }

  .phone-mockup {
    width: 140px;
    height: 280px;
  }

  .phone-1 {
    top: 30px;
  }

  .footer {
    font-size: 12px;
  }
}

/* 移动端 - 小屏手机 (≤375px) */
@media (max-width: 375px) {
  .navbar {
    padding: 10px 12px;
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .logo {
    flex-direction: column;
    gap: 0;
  }

  .logo-icon {
    width: 60px;
    height: 60px;
  }

  .app-name {
    display: none;
  }

  .share-btn {
    display: none;
  }

  .container {
    padding: 15px 12px;
    gap: 30px;
  }

  .main-title {
    font-size: 22px;
    margin-bottom: 12px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 20px;
  }

  .feature-card {
    padding: 10px;
    gap: 6px;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .feature-icon {
    width: 35px;
    height: 35px;
    min-width: 35px;
  }

  .feature-icon svg {
    width: 22px;
    height: 22px;
  }

  .feature-title {
    font-size: 13px;
    margin-bottom: 0;
  }

  .feature-desc {
    display: none;
  }

  .download-section {
    gap: 15px;
  }

  .qr-image {
    width: 90px;
    height: 90px;
  }

  .qr-text {
    font-size: 11px;
  }

  .download-btn {
    padding: 9px 18px;
    font-size: 13px;
  }

  .btn-icon {
    width: 18px;
    height: 18px;
  }

  .content-right {
    height: 250px;
  }

  .phone-mockup {
    width: 120px;
    height: 240px;
  }

  .phone-1 {
    top: 20px;
  }

  .footer {
    font-size: 11px;
  }

  .floating-toolbar {
    right: 8px;
    width: 75px;
    padding: 12px 0;
    border-radius: 25px;
  }

  .toolbar-logo-img {
    width: 40px;
    height: 40px;
  }

  .toolbar-title {
    font-size: 11px;
    margin-bottom: 3px;
  }

  .toolbar-btn {
    padding: 10px 6px;
    gap: 6px;
  }

  .toolbar-btn svg {
    width: 22px;
    height: 22px;
  }

  .toolbar-btn span {
    font-size: 12px;
    line-height: 1.2;
  }

  .video-modal-content {
    width: 95%;
  }

  .video-close-btn {
    width: 35px;
    height: 35px;
    top: 10px;
    right: 10px;
  }

  .video-close-btn svg {
    width: 20px;
    height: 20px;
  }

  .contact-modal-content {
    width: 95%;
    max-width: 350px;
  }

  .contact-header {
    padding: 30px 20px 20px;
  }

  .contact-header svg {
    width: 40px;
    height: 40px;
  }

  .contact-header h2 {
    font-size: 22px;
  }

  .contact-body {
    padding: 20px;
    gap: 15px;
  }

  .contact-item {
    padding: 12px;
    gap: 15px;
  }

  .contact-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
  }

  .contact-icon svg {
    width: 24px;
    height: 24px;
  }

  .contact-info h3 {
    font-size: 12px;
  }

  .contact-info p {
    font-size: 14px;
  }

  .contact-close-btn {
    width: 35px;
    height: 35px;
  }

  .contact-close-btn svg {
    width: 20px;
    height: 20px;
  }
}