* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

html, body {
  height: 100%;
  background: #17152c;
  color: #e9e6ff;
}

body {
  padding-top: 80px;
}

img { display: block; max-width: 100%; }

.container { width: min(1100px, 92%); margin: 0 auto; }

.site-header { 
  position: fixed; 
  top: 0; 
  left: 0;
  right: 0;
  z-index: 1000; 
  background: rgba(11, 11, 22, 0.95);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.brand { 
  display: inline-flex; 
  align-items: center; 
  gap: 12px; 
  color: #fff; 
  text-decoration: none; 
}
.brand-logo { width: 40px; height: 40px; border-radius: 10px; display: block; }
.brand-name { 
  font-weight: 700; 
  font-size: 18px;
  letter-spacing: 0.3px; 
}

.nav-links { 
  list-style: none; 
  display: flex; 
  align-items: center; 
  gap: 42px; 
}
.nav-links a { 
  color: #e9e6ff; 
  text-decoration: none; 
  font-weight: 700; 
  font-size: 16px;
  padding: 8px 0;
  transition: color 0.2s ease;
}
.nav-links a:hover { 
  color: #a855f7; 
}
.nav-links a.active { 
  color: #a855f7; 
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, #a855f7, #ec4899);
  border-radius: 1px;
}

.hamburger { display: none; width: 40px; height: 40px; border: 0; background: transparent; position: relative; cursor: pointer; }
.hamburger span { position: absolute; left: 8px; right: 8px; height: 3px; background: #fff; border-radius: 2px; transition: transform .25s ease, opacity .2s ease, top .25s ease; }
.hamburger span:nth-child(1) { top: 12px; }
.hamburger span:nth-child(2) { top: 19px; }
.hamburger span:nth-child(3) { top: 26px; }
.hamburger.open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.hero { 
  width: 100vw; 
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}
.hero img {
  width: 100%;
  height: auto;
  display: block;
}

.section { padding: 120px 0; }
.section .container { width: min(1200px, 92%); }
.section p { color: #d8d1ff; line-height: 1.75; }

/* About */
.about-media { border-radius: 20px; overflow: hidden; }
.about-media img { width: 100%; height: auto; display: block; }
.about-copy { text-align: center; margin-top: 60px; }
.about-copy h2 { font-size: 48px; margin-bottom: 24px; }
.about-copy p { color: #d8d1ff; }

/* Vision */
.vision-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.vision-images {
  display: flex;
  justify-content: center;
}

.vision-img {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 20px;
  display: block;
}

.vision-text h2 {
  font-size: 48px;
  margin-bottom: 24px;
  color: #fff;
  font-weight: 800;
  line-height: 1.2;
}

.vision-intro {
  font-size: 20px;
  color: #d8d1ff;
  margin-bottom: 48px;
  line-height: 1.6;
  font-weight: 500;
  max-width: 100%;
}

.vision-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.feature-card {
  padding: 24px 28px 24px 0;
  border-radius: 20px;
}

.feature-card h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
  width: 394px;
  height: 56px;
  background: linear-gradient( 90deg, #8C34FF 0%, rgba(135,2,255,0) 100%);;
  border-radius: 28px;
  display: flex;
  align-items: center;
  padding-left: 24px;
}

.feature-card p {
  color: #9a95ad;
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  font-weight: 400;
}

/* 移动端优化 */
@media (max-width: 900px) {
  body {
    padding-top: 70px;
  }
  
  .container {
    width: 95%;
    padding: 0 16px;
  }
  
  .section {
    padding: 80px 0;
  }
  
  .section .container {
    width: 100%;
  }
  
  /* 导航栏移动端 */
  .hamburger { 
    display: inline-block; 
  }
  
  .nav-links { 
    position: fixed; 
    top: 70px;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    gap: 8px; 
    background: rgba(18, 16, 32, 0.95); 
    padding: 20px; 
    border-radius: 16px; 
    backdrop-filter: saturate(140%) blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    z-index: 999;
  }
  
  .nav-links.open { 
    display: flex;
  }
  
  .nav-links li {
    list-style: none;
    margin: 0;
  }
  
  .nav-links a {
    display: block;
    padding: 16px 20px;
    font-size: 18px;
    text-align: center;
    border-radius: 12px;
    transition: all 0.2s ease;
    color: #e9e6ff;
    text-decoration: none;
    font-weight: 600;
  }
  
  .nav-links a:hover,
  .nav-links a.active {
    background: rgba(168, 85, 247, 0.15);
    color: #a855f7;
  }
  
  .nav-links a.active::after {
    display: none;
  }
  
  /* About section 移动端 */
  .about-copy h2 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  
  .about-copy p {
    font-size: 16px;
    line-height: 1.6;
  }
  
  /* Vision section 移动端 */
  .vision-content {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .vision-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  
  .vision-intro {
    font-size: 18px;
    margin-bottom: 40px;
  }
  
  .vision-features {
    gap: 20px;
  }
  
  .feature-card {
    padding: 20px 24px 20px 0;
  }
  
  .feature-card h3 {
    width: 100%;
    max-width: none;
    height: auto;
    padding: 16px 20px;
    font-size: 18px;
  }
  
  .feature-card p {
    font-size: 15px;
    margin-top: 12px;
  }
  
  /* What We Do section 移动端 */
  .what-we-do-content {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  
  .what-we-do-text h2 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  
  .what-we-do-intro {
    font-size: 18px;
    margin-bottom: 40px;
  }
  
  .what-we-do-features {
    gap: 20px;
  }
  
  .what-we-do-card {
    padding: 20px 24px 20px 0;
  }
  
  .what-we-do-card h3 {
    width: 100%;
    max-width: none;
    height: auto;
    padding: 16px 20px;
    font-size: 18px;
  }
  
  .what-we-do-card p {
    font-size: 15px;
    margin-top: 12px;
  }
  
  /* Contact section 移动端 */
  .contact {
    padding: 80px 0;
  }
  
  .contact-card-box {
    margin-bottom: 30px;
  }
  
  .contact-card {
    padding: 40px 24px;
  }
  
  .contact-card h2 {
    font-size: 36px;
    margin-bottom: 20px;
  }
  
  .contact-description {
    font-size: 16px;
    margin-bottom: 30px;
  }
  
  .contact-email {
    flex-direction: column;
    gap: 16px;
  }
  
  .email-icon {
    width: 32px;
    height: 32px;
  }
  
  .email-text {
    font-size: 16px;
    text-align: center;
  }
  
  .footer-buttons {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .footer-btn {
    width: 100%;
    max-width: 280px;
    padding: 18px 32px;
    font-size: 16px;
  }
  
  /* Footer 移动端 */
  .site-footer {
    padding: 30px 0;
  }
  
  .footer-copyright {
    font-size: 13px;
  }
}

/* What We Do */
.what-we-do-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.what-we-do-images {
  display: flex;
  justify-content: center;
}

.what-we-do-img {
  width: 100%;
  max-width: 500px;
  height: auto;
  display: block;
}

.what-we-do-text h2 {
  font-size: 48px;
  margin-bottom: 24px;
  color: #fff;
  font-weight: 800;
  line-height: 1.2;
}

.what-we-do-intro {
  font-size: 20px;
  color: #d8d1ff;
  margin-bottom: 48px;
  line-height: 1.6;
  font-weight: 500;
  max-width: 100%;
}

.what-we-do-features {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.what-we-do-card {
  padding: 24px 28px 24px 0;
  transition: transform 0.2s ease;
}


.what-we-do-card h3 {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
  width: 394px;
  height: 56px;
  background: linear-gradient( 90deg, #E934FF 0%, rgba(239,2,255,0) 100%);
  border-radius: 28px;
  display: flex;
  align-items: center;
  padding-left: 24px;
}

.what-we-do-card p {
  color: #9a95ad;
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
  font-weight: 400;
}


/* Contact */
.contact {
  background: #271853;
  padding: 120px 0;
}

.contact-card-box {
  padding: 8px;
  background:  linear-gradient(180deg, rgba(215, 100, 252, 1), rgba(254, 244, 221, 1), rgba(255, 255, 255, 1));
  margin-bottom: 40px;
  border-radius: 24px;
}

.contact-card {
  background: #25184c;
  padding: 60px 48px;
  text-align: center;
  border-radius: 24px;
}

.contact-card h2 {
  font-size: 48px;
  color: #fff;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.2;
}

.contact-description {
  font-size: 18px;
  color: #d8d1ff;
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.contact-email {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 32px;
}

.email-icon {
  width: 40px;
  height: 40px;
}

.email-text {
  margin-top: 16px;
  color: #fff;
  font-size: 16px;
}

.email-link {
  color: #F876FF;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

.email-link:hover {
  color: #ec4899;
}

.footer-buttons {
  display: flex;
  justify-content: center;
  gap: 50px;
}

.footer-btn {
  color: #D8BBFF;
  padding: 20px 40px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  background: rgba(255,255,255,0.16);
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.24)
}

.footer-btn:hover {
  background: linear-gradient(135deg, #a855f7, #8b5cf6);
  transform: translateY(-2px);
  color: #fff;
}


/* Footer */
.site-footer {
  background: #17152c;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
  text-align: center;
  color: #d8d1ff;
  font-size: 14px;
  margin: 0;
}

body.no-scroll { overflow: hidden; }