/* 全局变量 */
:root {
  --bg-dark: #0a0a0a;
  --bg-section: #111111;
  --bg-card: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --accent: #ffffff;
  --border-color: rgba(255, 255, 255, 0.1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.app {
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
}

/* 导航栏 */
.header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 32px);
  max-width: 1440px;
  height: 62px;
  z-index: 1000;
  padding: 0 2rem;
  border-radius: 9999px;
  background: rgba(0, 0, 0, 0.3);
  border: 0.5px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
}

.nav {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.logo img {
  height: 22px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 16px;
  font-weight: 400;
  line-height: 16px;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a.active {
  color: #FFFFFF;
  font-weight: 600;
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: #FFFFFF;
  border-radius: 1px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-right: -16px;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.lang-icon {
  width: 16px;
  height: 16px;
}

.nav-right .login-btn {
  color: #000000;
  font-size: 0.9rem;
  font-weight: bold;
  padding: 0.5rem 1.5rem;
  width: 112px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  border: 1px solid #FFFFFF;
  border-radius: 47px;
  transition: all 0.3s;
}

.nav-right .login-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

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

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.hero-bg-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.2);
  pointer-events: none;
}

/* 左侧图片栏 */
.hero-sidebar {
  position: absolute;
  left: 40px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 10;
}

.sidebar-img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.3s;
  cursor: pointer;
  position: relative;
}

.sidebar-img::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  transition: opacity 0.3s;
}

.sidebar-img.active {
  width: 45px;
  height: 45px;
  border: 1px solid #FFFFFF;
}

.sidebar-img.active::after {
  opacity: 0;
}

.sidebar-img video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
}

.sidebar-img:hover {
  opacity: 0.8;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

.hero-content h1 {
  font-size: 72px;
  font-weight: 800;
  line-height: 100px;
  letter-spacing: 0;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
}

.hero-tags {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.hero-tags span {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
}

.hero-tags .divider {
  color: rgba(255, 255, 255, 0.4);
}

.hero-btns {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.hero-btn {
  padding: 0.875rem 2.5rem;
  border-radius: 47px;
  font-size: 16px;
  font-weight: 500;
  line-height: 16px;
  letter-spacing: 0;
  cursor: pointer;
  transition: all 0.3s;
}

.hero-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.hero-btn.primary {
  background: var(--text-primary);
  color: #000000;
  border: none;
}

.hero-btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border: 1px solid #FFFFFF;
  backdrop-filter: blur(10px);
}

/* 底部创作输入框 */
.hero-create {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.create-input-box {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 650px;
  height: 60px;
  background: rgba(0, 0, 0, 0.2);
  border: 0.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 60px;
  backdrop-filter: blur(20px);
  padding: 8px 8px 8px 16px;
}

.create-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.create-avatar video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
}

.create-input-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.create-input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 14px;
}

.create-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.create-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 110px;
  height: 44px;
  background: #FFFFFF;
  color: #000000;
  border: 1px solid #FFFFFF;
  border-radius: 47px;
  font-size: 20px;
  font-weight: bold;
  line-height: normal;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  flex-shrink: 0;
  box-sizing: border-box;
}

.create-btn img {
  width: 16px;
  height: 16px;
}

.create-btn:hover {
  opacity: 0.9;
}

.create-users {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.user-avatars {
  display: flex;
}

.user-avatars img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  margin-left: -8px;
  object-fit: cover;
}

.user-avatars img:first-child {
  margin-left: 0;
}

.create-users p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

/* 作品广场 */
.works-section {
  padding: 5rem 0;
  padding-bottom: 10rem;
  background: var(--bg-dark);
  overflow: hidden;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto 3rem;
  padding: 0 5%;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--bg-dark);
}

.section-header.dark h2 {
  color: var(--text-primary);
}

.more-link {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
}

.more-link.green {
  color: #4ADE80;
}

.arrow-icon {
  width: 16px;
  height: 16px;
  margin-left: 4px;
}

.works-scroll-container {
  width: 100%;
  overflow: visible;
  padding-bottom: 150px;
  position: relative;
  z-index: 1;
}

.works-scroll {
  display: flex;
  gap: 1rem;
  animation: scrollLeft 40s linear infinite;
}

@keyframes scrollLeft {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(calc(-200px * 11 - 1rem * 11));
  }
}

.works-scroll:hover {
  animation-play-state: paused;
}

.work-card {
  flex-shrink: 0;
  width: 200px;
  position: relative;
}

.work-card > video {
  width: 100%;
  height: 280px;
  border-radius: 12px;
  object-fit: cover;
  transition: transform 0.3s;
  display: block;
}

.work-card:hover > video {
  transform: scale(1.05);
}

.work-reflection {
  position: absolute;
  top: 290px;
  left: 0;
  right: 0;
  height: 280px;
  overflow: hidden;
  pointer-events: none;
  transform: scaleY(-1);
}

.work-reflection video {
  width: 100%;
  height: 280px;
  border-radius: 12px;
  object-fit: cover;
  mask-image: linear-gradient(to top, rgba(0,0,0,0.15) 0%, transparent 100%);
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.15) 0%, transparent 100%);
}

/* 核心功能 */
.features-section {
  padding: 5rem 5%;
  background: var(--bg-dark);
  margin-top: -260px;
  position: relative;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.features-header {
  text-align: center;
  max-width: 1400px;
  margin: 0 auto 4rem;
}

.features-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.features-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem 0;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.feature-item {
  text-align: left;
  padding: 2rem;
  position: relative;
}

.feature-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 200%;
  background: #383838;
}

.feature-item::after {
  content: '';
  position: absolute;
  left: 0;
  top: 32px;
  width: 5px;
  height: 36px;
  background: #383838;
}

.feature-item:nth-child(n+4)::before {
  display: none;
}

.feature-icon {
  margin-bottom: 1rem;
}

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

.feature-item h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}


/* 创作案例 */
.cases-section {
  padding: 5rem 0;
  background: #1D1D1F;
  overflow: hidden;
}

.cases-header {
  text-align: center;
  margin-bottom: 3rem;
}

.cases-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.cases-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.cases-carousel {
  width: 100%;
  overflow: hidden;
  touch-action: none;
}

.cases-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease;
  padding: 0 5%;
}

.case-card {
  flex-shrink: 0;
  width: 1260px;
  height: 680px;
  position: relative;
  border-radius: 50px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.5s ease;
}

.case-card.active {
  opacity: 1;
}

.case-card video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  transition: transform 0.3s;
}

.case-play img {
  width: 80px;
  height: 80px;
}

.case-play:hover {
  transform: translate(-50%, -50%) scale(1.1);
}

.case-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 165px;
  padding: 2rem;
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 0px 0px 50px 50px;
}

.case-info h4 {
  font-size: 45px;
  font-weight: bold;
  line-height: 45px;
  letter-spacing: 0;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.case-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.cases-dots {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 2rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s;
}

.dot.active {
  width: 32px;
  border-radius: 4px;
  background: var(--text-primary);
}

/* 视频弹窗 */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: fadeIn 0.3s ease;
}

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

.video-modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.video-modal-content video {
  max-width: 90vw;
  max-height: 80vh;
  border-radius: 20px;
}

.video-modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.video-modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* 定价方案 */
.pricing-section {
  padding: 5rem 5%;
  background: #000000;
}

.pricing-section .pricing-header-section {
  text-align: center;
  margin-bottom: 3rem;
}

.pricing-section .pricing-header-section h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.pricing-section .pricing-header-section p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.pricing-grid {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  max-width: 1400px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.pricing-card {
  width: 330px;
  height: 494px;
  background: #171717;
  border-radius: 20px;
  padding: 1.5rem 2rem 2rem;
  position: relative;
  border: 1px solid #272727;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
}

.pricing-header h3 {
  font-size: 24px;
  font-weight: 900;
  line-height: normal;
  letter-spacing: 0;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.pricing-desc {
  font-size: 12px;
  color: #A1A1AA;
  display: block;
}

.price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1rem 0;
}

.price-contact {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1rem 0;
}

.price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-features {
  margin: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
  list-style: none;
}

.pricing-features li {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.pricing-btn {
  width: 100%;
  padding: 0.875rem;
  border: 1px solid #272727;
  background: transparent;
  color: var(--text-primary);
  border-radius: 47px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s;
  margin-top: auto;
}

.pricing-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
  background: transparent;
  color: var(--text-primary);
}

.pricing-btn.white {
  background: #FFFFFF;
  color: #000000;
  border: 1px solid #FFFFFF;
}

.pricing-btn.white:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
  background: #FFFFFF;
  color: #000000;
}

.pricing-card.featured {
  position: relative;
  border: 1px solid #FFFFFF;
}

.featured-tag-img {
  position: absolute;
  top: 0;
  right: 0;
}

.pricing-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 2rem;
}

/* 为什么选择 */
.why-section {
  padding: 5rem 5%;
  background: #1D1D1F;
  min-height: 800px;
}

.why-header {
  text-align: center;
  margin-bottom: 4rem;
}

.why-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.why-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.why-card {
  width: 292px;
  height: 354px;
  background: rgba(23, 23, 23, 0.5);
  border-radius: 10px;
  padding: 2.5rem 2rem;
  text-align: center;
  border: 1px solid rgba(195, 197, 223, 0.3);
  box-sizing: border-box;
}

.why-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 1.5rem;
  background: transparent;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.53px solid rgba(255, 255, 255, 0.05);
  position: relative;
}

.why-icon::before {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.102) 100%);
}

.why-icon img {
  width: 32px;
  height: 32px;
  color: rgba(255, 255, 255, 0.8);
  position: relative;
  z-index: 1;
}

.why-card h3 {
  font-size: 24px;
  font-weight: bold;
  line-height: 24px;
  letter-spacing: 0;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
}

.why-card p {
  font-size: 14px;
  font-weight: normal;
  line-height: 24px;
  text-align: center;
  letter-spacing: 0;
  color: #A1A1AA;
}

/* 愿景 */
.vision-section {
  position: relative;
  padding: 4rem 5%;
  min-height: 600px;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.vision-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.vision-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.vision-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
}

.vision-content {
  position: relative;
  z-index: 10;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.vision-header {
  text-align: center;
  margin-bottom: 2rem;
}

.vision-header h2 {
  font-size: 2.5rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.vision-header p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
}

.vision-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4rem;
}

.vision-card {
  text-align: left;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  padding: 2rem;
  box-sizing: border-box;
}

.vision-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: #FFFFFF;
}

.vision-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.vision-btns {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 4rem;
}

/* 页脚 */
.footer {
  background: #000000;
  padding: 3rem 5% 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
  gap: 4rem;
}

.footer-brand {
  flex-shrink: 0;
  margin-top: 20px;
}

.footer-brand h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand h3 img {
  height: 32px;
  width: auto;
}

.footer-brand h3::before {
  display: none;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.footer-contact {
  margin-bottom: 1.5rem;
}

.footer-contact-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
}

.footer-contact-phone {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.footer-qrcodes {
  display: flex;
  gap: 1.5rem;
}

.qrcode-item {
  text-align: center;
}

.qrcode-item img {
  width: 100px;
  height: 100px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin-bottom: 0.5rem;
}

.qrcode-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.footer-links {
  display: flex;
  gap: 3rem;
  flex: 1;
  justify-content: flex-end;
}

.footer-col {
  min-width: 100px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom-left {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer-bottom-right {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.footer-bottom-right a {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: color 0.3s;
}

.footer-bottom-right a:hover {
  color: var(--text-primary);
}

/* 响应式 */
@media (max-width: 1440px) {
  .header {
    width: calc(100% - 24px);
    top: 12px;
    padding: 0 1.5rem;
  }
  
  .hero-content h1 {
    font-size: 60px;
    line-height: 80px;
  }
}

@media (max-width: 1024px) {
  .header {
    width: calc(100% - 20px);
    top: 10px;
    padding: 0 1rem;
    height: 56px;
  }
  
  .logo img {
    height: 18px;
  }
  
  .nav-links {
    gap: 1.5rem;
    font-size: 14px;
  }
  
  .hero-content h1 {
    font-size: 48px;
    line-height: 64px;
  }
  
  .hero-sidebar {
    left: 20px;
    gap: 8px;
  }
  
  .sidebar-img {
    width: 32px;
    height: 32px;
  }
  
  .sidebar-img.active {
    width: 36px;
    height: 36px;
  }
  
  .create-input-box {
    width: 550px;
    height: 52px;
    padding: 6px 6px 6px 12px;
  }
  
  .create-avatar {
    width: 36px;
    height: 36px;
  }
  
  .create-btn {
    width: 100px;
    height: 40px;
    font-size: 18px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .vision-cards {
    grid-template-columns: 1fr;
  }
  
  .case-card {
    width: 900px;
    height: 500px;
  }
  
  .case-info {
    height: 120px;
    padding: 1.5rem;
  }
  
  .case-info h4 {
    font-size: 32px;
    line-height: 32px;
  }
  
  .footer-main {
    gap: 2rem;
  }
  
  .footer-links {
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .header {
    width: calc(100% - 16px);
    top: 8px;
    padding: 0 0.75rem;
    height: 50px;
  }
  
  .nav {
    gap: 1rem;
  }
  
  .logo img {
    height: 16px;
  }
  
  .nav-links {
    display: none;
  }
  
  .nav-right {
    gap: 0.5rem;
    margin-right: -8px;
  }
  
  .lang-btn {
    display: none;
  }
  
  .nav-right .login-btn {
    width: 100px;
    height: 34px;
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
  }
  
  .hero {
    min-height: 80vh;
  }
  
  .hero-content h1 {
    font-size: 32px;
    line-height: 48px;
    margin-bottom: 1rem;
  }
  
  .hero-tags {
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
  }
  
  .hero-btns {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    padding: 0 1rem;
  }
  
  .hero-btn {
    width: 100%;
  }
  
  .hero-sidebar {
    display: none;
  }
  
  .create-input-box {
    width: calc(100% - 2rem);
    max-width: 450px;
    height: 48px;
    padding: 6px 6px 6px 12px;
  }
  
  .create-avatar {
    width: 32px;
    height: 32px;
  }
  
  .create-input {
    font-size: 12px;
  }
  
  .create-btn {
    width: 90px;
    height: 36px;
    font-size: 16px;
  }
  
  .create-btn img {
    width: 14px;
    height: 14px;
  }
  
  .user-avatars img {
    width: 28px;
    height: 28px;
  }
  
  .create-users p {
    font-size: 12px;
  }
  
  .works-section {
    padding: 3rem 0;
    padding-bottom: 8rem;
  }
  
  .section-header {
    margin: 0 auto 2rem;
    padding: 0 1rem;
  }
  
  .section-header h2 {
    font-size: 1.5rem;
  }
  
  .work-card > video {
    width: 100%;
    height: 200px;
  }
  
  .work-reflection {
    top: 210px;
    height: 200px;
  }
  
  .work-reflection video {
    height: 200px;
  }
  
  .features-section {
    padding: 3rem 1rem;
    margin-top: -150px;
  }
  
  .features-header h2 {
    font-size: 1.8rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem 0;
  }
  
  .feature-item {
    padding: 1.5rem;
  }
  
  .feature-item::before,
  .feature-item::after {
    display: none;
  }
  
  .cases-section {
    padding: 3rem 0;
  }
  
  .cases-header h2 {
    font-size: 1.8rem;
  }
  
  .case-card {
    width: 100vw;
    height: 300px;
    border-radius: 20px;
  }
  
  .case-info {
    height: 100px;
    padding: 1rem;
  }
  
  .case-info h4 {
    font-size: 20px;
    line-height: 20px;
    margin-bottom: 0.25rem;
  }
  
  .case-info p {
    font-size: 0.8rem;
  }
  
  .case-play img {
    width: 60px;
    height: 60px;
  }
  
  .pricing-section {
    padding: 3rem 1rem;
  }
  
  .pricing-section .pricing-header-section h2 {
    font-size: 1.8rem;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .pricing-card {
    width: 100%;
    height: auto;
    padding: 1.5rem;
  }
  
  .why-section {
    padding: 3rem 1rem;
  }
  
  .why-header h2 {
    font-size: 1.8rem;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .why-card {
    width: 100%;
    height: auto;
    padding: 1.5rem;
  }
  
  .vision-section {
    padding: 2rem 1rem;
    min-height: auto;
    height: auto;
  }
  
  .vision-header h2 {
    font-size: 1.8rem;
  }
  
  .vision-cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .vision-btns {
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
  }
  
  .vision-btns .hero-btn {
    width: 100%;
  }
  
  .footer {
    padding: 2rem 1rem;
  }
  
  .footer-main {
    flex-direction: column;
    gap: 2rem;
  }
  
  .footer-brand h3 {
    font-size: 1.25rem;
  }
  
  .footer-qrcodes {
    gap: 1rem;
  }
  
  .qrcode-item img {
    width: 80px;
    height: 80px;
  }
  
  .qrcode-label {
    font-size: 0.7rem;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .footer-bottom-right {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .header {
    width: calc(100% - 12px);
    top: 6px;
    padding: 0 0.5rem;
    height: 46px;
  }
  
  .logo img {
    height: 14px;
  }
  
  .nav-right .login-btn {
    width: 90px;
    height: 32px;
    font-size: 0.75rem;
  }
  
  .hero-content h1 {
    font-size: 24px;
    line-height: 36px;
  }
  
  .hero-tags {
    font-size: 0.75rem;
    gap: 0.25rem;
  }
  
  .hero-tags .divider {
    display: none;
  }
  
  .hero-btns {
    gap: 0.75rem;
  }
  
  .create-input-box {
    width: calc(100% - 1rem);
    max-width: 100%;
    height: 44px;
  }
  
  .create-avatar {
    width: 28px;
    height: 28px;
  }
  
  .create-input {
    font-size: 11px;
  }
  
  .create-btn {
    width: 80px;
    height: 32px;
    font-size: 14px;
  }
  
  .section-header {
    padding: 0 0.75rem;
  }
  
  .section-header h2 {
    font-size: 1.25rem;
  }
  
  .features-header h2 {
    font-size: 1.5rem;
  }
  
  .cases-header h2 {
    font-size: 1.5rem;
  }
  
  .pricing-section .pricing-header-section h2 {
    font-size: 1.5rem;
  }
  
  .why-header h2 {
    font-size: 1.5rem;
  }
  
  .vision-header h2 {
    font-size: 1.5rem;
  }
  
  .footer-brand h3 {
    font-size: 1.1rem;
  }
  
  .footer-contact-phone {
    font-size: 1rem;
  }
  
  .qrcode-item img {
    width: 70px;
    height: 70px;
  }
  
  .footer-col h4 {
    font-size: 0.8rem;
  }
  
  .footer-col a {
    font-size: 0.75rem;
  }
}