*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',Roboto,'Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
  color:#fff;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  background:#000;
  overflow-x:hidden;
}
/* 加载画面 */
.loader-screen{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  z-index:9999;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 30%,rgba(0,60,150,0.4) 0%,transparent 60%),
    linear-gradient(180deg,#000814 0%,#001029 50%,#000814 100%);
  transition:opacity 0.8s ease, visibility 0.8s ease;
}
.loader-screen.hidden{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.loader-logo{
  position:relative;
  width:100px;height:100px;
  margin-bottom:36px;
}
.loader-logo-ring{
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  border-radius:50%;
  border:2px solid transparent;
}
.loader-logo-ring.ring1{
  border-top-color:#0a84ff;
  border-right-color:#0a84ff;
  animation:spin 1.2s linear infinite;
}
.loader-logo-ring.ring2{
  top:8px;left:8px;right:8px;bottom:8px;
  border-bottom-color:#5e5ce6;
  border-left-color:#5e5ce6;
  animation:spin 1.6s linear infinite reverse;
}
.loader-logo-ring.ring3{
  top:16px;left:16px;right:16px;bottom:16px;
  border-top-color:#bf5af2;
  animation:spin 2s linear infinite;
}
.loader-logo-core{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  width:48px;height:48px;
  border-radius:14px;
  overflow:hidden;
  box-shadow:
    0 0 30px rgba(139,92,246,0.5),
    0 0 60px rgba(139,92,246,0.3),
    inset 0 1px 0 rgba(255,255,255,0.2);
  animation:pulseCore 2s ease-in-out infinite;
}
.loader-logo-core img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
@keyframes spin{
  0%{transform:rotate(0deg)}
  100%{transform:rotate(360deg)}
}
@keyframes pulseCore{
  0%,100%{transform:translate(-50%,-50%) scale(1);box-shadow:0 0 30px rgba(10,132,255,0.5),0 0 60px rgba(10,132,255,0.3),inset 0 1px 0 rgba(255,255,255,0.2)}
  50%{transform:translate(-50%,-50%) scale(1.08);box-shadow:0 0 40px rgba(10,132,255,0.7),0 0 80px rgba(10,132,255,0.4),inset 0 1px 0 rgba(255,255,255,0.25)}
}
.loader-text{
  font-size:20px;font-weight:600;
  color:#fff;
  letter-spacing:0.02em;
  margin-bottom:8px;
  background:linear-gradient(180deg,#ffffff 0%,#a8c8ff 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.loader-subtext{
  font-size:13px;
  color:rgba(255,255,255,0.4);
  margin-bottom:32px;
}
.loader-progress{
  width:200px;height:3px;
  background:rgba(255,255,255,0.08);
  border-radius:100px;
  overflow:hidden;
  margin-bottom:16px;
}
.loader-progress-bar{
  height:100%;
  width:0%;
  background:linear-gradient(90deg,#0a84ff 0%,#5e5ce6 50%,#bf5af2 100%);
  border-radius:100px;
  box-shadow:0 0 10px rgba(10,132,255,0.5);
  transition:width 0.3s ease;
}
.loader-percent{
  font-size:12px;
  color:rgba(255,255,255,0.5);
  font-variant-numeric:tabular-nums;
}
/* 加载粒子 */
.loader-particles{
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  overflow:hidden;
  pointer-events:none;
}
.loader-particle{
  position:absolute;
  width:3px;height:3px;
  background:rgba(10,132,255,0.6);
  border-radius:50%;
  animation:floatParticle linear infinite;
}
@keyframes floatParticle{
  0%{transform:translateY(100vh) scale(0);opacity:0}
  10%{opacity:1}
  90%{opacity:1}
  100%{transform:translateY(-100px) scale(1);opacity:0}
}
/* 全局背景 - Apple黑蓝渐变 */
.global-bg{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  z-index:-1;
  background:
    radial-gradient(ellipse 90% 60% at 20% 0%,rgba(0,60,150,0.35) 0%,transparent 55%),
    radial-gradient(ellipse 70% 50% at 80% 30%,rgba(0,100,200,0.25) 0%,transparent 50%),
    radial-gradient(ellipse 80% 60% at 50% 100%,rgba(20,40,120,0.3) 0%,transparent 55%),
    linear-gradient(180deg,#000814 0%,#001029 35%,#000814 70%,#000 100%);
}
.global-bg::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  background-image:
    radial-gradient(circle at 15% 25%,rgba(0,120,255,0.08) 0%,transparent 30%),
    radial-gradient(circle at 85% 75%,rgba(0,80,200,0.06) 0%,transparent 30%);
}
/* 玻璃模块通用样式 */
.glass{
  background:rgba(255,255,255,0.06);
  backdrop-filter:blur(40px) saturate(180%);
  -webkit-backdrop-filter:blur(40px) saturate(180%);
  border:1px solid rgba(255,255,255,0.1);
  box-shadow:
    0 8px 32px rgba(0,0,0,0.3),
    inset 0 1px 0 rgba(255,255,255,0.1);
}
.glass-strong{
  background:rgba(255,255,255,0.08);
  backdrop-filter:blur(50px) saturate(200%);
  -webkit-backdrop-filter:blur(50px) saturate(200%);
  border:1px solid rgba(255,255,255,0.12);
  box-shadow:
    0 12px 48px rgba(0,0,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.15);
}
/* 导航栏 - 玻璃胶囊 */
.nav{
  position:fixed;
  top:20px;
  left:50%;
  transform:translateX(-50%);
  z-index:100;
  display:flex;
  align-items:center;
  gap:32px;
  padding:10px 22px;
  border-radius:100px;
  transition:all 0.3s;
}
.nav:hover{
  background:rgba(255,255,255,0.09);
  border-color:rgba(255,255,255,0.15);
}
.nav-logo{
  display:flex;
  align-items:center;
  gap:8px;
  color:#fff;
  font-size:15px;
  font-weight:600;
  letter-spacing:-0.01em;
}
.nav-logo-dot{
  width:28px;height:28px;
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  box-shadow:0 2px 10px rgba(0,0,0,0.3);
}
.nav-logo-dot img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
.nav-links{
  display:flex;
  gap:28px;
  list-style:none;
}
.nav-links a{
  color:rgba(255,255,255,0.6);
  text-decoration:none;
  font-size:13.5px;
  transition:color 0.2s;
  font-weight:400;
}
.nav-links a:hover{color:#fff}
.nav-download{
  padding:7px 18px;
  background:linear-gradient(135deg,#0a84ff 0%,#0066cc 100%);
  color:#fff;
  border-radius:100px;
  font-size:13px;
  font-weight:500;
  text-decoration:none;
  transition:all 0.2s;
  box-shadow:0 2px 12px rgba(10,132,255,0.35);
}
.nav-download:hover{
  background:linear-gradient(135deg,#1a94ff 0%,#0077dd 100%);
  transform:translateY(-1px);
  box-shadow:0 4px 16px rgba(10,132,255,0.45);
}
/* Hero区域 */
.hero{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  align-items:center;
  position:relative;
  padding-top:120px;
}
.hero-content{
  position:relative;
  z-index:1;
  text-align:center;
  padding:0 20px;
  max-width:800px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 16px;
  border-radius:100px;
  font-size:12.5px;
  color:#6cb6ff;
  margin-bottom:32px;
  font-weight:500;
  letter-spacing:0.01em;
}
.hero-badge-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:#30d158;
  box-shadow:0 0 8px rgba(48,209,88,0.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:0.5;transform:scale(0.85)}
}
.hero h1{
  font-size:56px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:-0.03em;
  margin-bottom:22px;
  background:linear-gradient(180deg,#ffffff 0%,#a8c8ff 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero h1 .highlight{
  background:linear-gradient(135deg,#0a84ff 0%,#5e5ce6 50%,#bf5af2 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero .subtitle{
  color:rgba(255,255,255,0.55);
  font-size:17px;
  margin-bottom:44px;
  max-width:540px;
  margin-left:auto;
  margin-right:auto;
  line-height:1.7;
  font-weight:400;
}
.download-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:15px 38px;
  background:linear-gradient(135deg,#0a84ff 0%,#0066cc 100%);
  color:#fff;
  border-radius:14px;
  font-size:16.5px;
  font-weight:600;
  text-decoration:none;
  transition:all 0.25s;
  border:none;
  cursor:pointer;
  box-shadow:
    0 4px 24px rgba(10,132,255,0.4),
    inset 0 1px 0 rgba(255,255,255,0.2);
  letter-spacing:-0.01em;
}
.download-btn:hover{
  background:linear-gradient(135deg,#1a94ff 0%,#0077dd 100%);
  transform:translateY(-2px);
  box-shadow:
    0 8px 36px rgba(10,132,255,0.5),
    inset 0 1px 0 rgba(255,255,255,0.25);
}
.download-btn:active{transform:translateY(0)}
.download-btn-icon{width:20px;height:20px}
.web-link{
  display:inline-flex;
  align-items:center;
  gap:5px;
  margin-top:24px;
  color:rgba(255,255,255,0.4);
  font-size:13.5px;
  text-decoration:none;
  transition:color 0.2s;
}
.web-link:hover{color:rgba(255,255,255,0.7)}
.web-link-arrow{transition:transform 0.2s}
.web-link:hover .web-link-arrow{transform:translateX(3px)}
/* 产品预览 - 玻璃窗口 */
.hero-preview{
  position:relative;
  z-index:1;
  width:100%;
  max-width:880px;
  margin:60px auto 0;
  padding:0 20px 80px;
}
.preview-window{
  border-radius:20px;
  overflow:hidden;
  box-shadow:
    0 40px 100px rgba(0,0,0,0.6),
    0 0 0 1px rgba(255,255,255,0.08);
}
.preview-header{
  display:flex;
  align-items:center;
  gap:8px;
  padding:16px 24px;
  background:rgba(255,255,255,0.04);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.preview-dot{width:12px;height:12px;border-radius:50%}
.preview-dot.red{background:#ff5f57;box-shadow:0 0 6px rgba(255,95,87,0.4)}
.preview-dot.yellow{background:#febc2e;box-shadow:0 0 6px rgba(254,188,46,0.4)}
.preview-dot.green{background:#28c840;box-shadow:0 0 6px rgba(40,200,64,0.4)}
.preview-title{
  margin-left:auto;margin-right:auto;
  color:rgba(255,255,255,0.35);
  font-size:13px;font-weight:500;
}
.preview-body{
  display:flex;
  min-height:400px;
  background:linear-gradient(180deg,rgba(0,16,41,0.6) 0%,rgba(0,8,20,0.8) 100%);
}
.preview-sidebar{
  width:210px;
  background:rgba(0,0,0,0.25);
  border-right:1px solid rgba(255,255,255,0.06);
  padding:22px 16px;
}
.preview-new-btn{
  display:flex;align-items:center;gap:9px;
  padding:11px 14px;
  background:rgba(10,132,255,0.15);
  border:1px solid rgba(10,132,255,0.25);
  border-radius:11px;
  color:#6cb6ff;
  font-size:13px;font-weight:500;
  margin-bottom:22px;
}
.preview-menu-item{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:9px;
  color:rgba(255,255,255,0.45);
  font-size:13px;margin-bottom:3px;
  transition:all 0.15s;
}
.preview-menu-item.active{
  background:rgba(255,255,255,0.07);
  color:rgba(255,255,255,0.9);
}
.preview-menu-icon{width:16px;height:16px;opacity:0.7}
.preview-chat{
  flex:1;padding:28px;
  display:flex;flex-direction:column;gap:18px;
}
.preview-msg{
  max-width:78%;
  padding:13px 17px;
  border-radius:14px;
  font-size:13.5px;line-height:1.65;
}
.preview-msg.user{
  align-self:flex-end;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.06);
  color:rgba(255,255,255,0.92);
}
.preview-msg.ai{
  align-self:flex-start;
  background:linear-gradient(135deg,rgba(10,132,255,0.18) 0%,rgba(94,92,230,0.1) 100%);
  border:1px solid rgba(10,132,255,0.2);
  color:rgba(255,255,255,0.95);
}
.preview-input{
  margin-top:auto;
  display:flex;align-items:center;gap:12px;
  padding:13px 18px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:13px;
}
.preview-input-text{
  flex:1;color:rgba(255,255,255,0.3);
  font-size:13.5px;
}
.preview-input-btn{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,#0a84ff 0%,#0066cc 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 10px rgba(10,132,255,0.4);
}
.preview-input-btn svg{width:14px;height:14px;color:#fff}
/* 功能区域 */
.feature-section{
  padding:120px 40px;
  position:relative;
}
.feature-container{max-width:1100px;margin:0 auto}
.feature-block{
  display:flex;align-items:center;gap:70px;
  margin-bottom:100px;
}
.feature-block:last-child{margin-bottom:0}
.feature-block.reverse{flex-direction:row-reverse}
.feature-text{flex:1}
.feature-tag{
  display:inline-block;
  padding:5px 13px;
  background:rgba(10,132,255,0.12);
  border:1px solid rgba(10,132,255,0.2);
  color:#6cb6ff;
  border-radius:8px;
  font-size:12px;font-weight:500;
  margin-bottom:18px;
}
.feature-text h2{
  font-size:38px;font-weight:700;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:-0.025em;
  line-height:1.25;
  background:linear-gradient(180deg,#ffffff 0%,#b8d4ff 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.feature-text p{
  font-size:15.5px;
  color:rgba(255,255,255,0.5);
  line-height:1.8;
}
.feature-visual{flex:1}
.feature-card{
  border-radius:24px;
  padding:40px;
  aspect-ratio:4/3;
  display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.feature-card-bg{
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  opacity:0.9;
}
.feature-card-icon{
  position:relative;
  z-index:2;
  width:90px;height:90px;
  border-radius:24px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.12);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,0.2);
  box-shadow:0 8px 32px rgba(0,0,0,0.2);
}
.feature-card-icon svg{
  width:44px;height:44px;
  color:#fff;
}
.feature-card-deco{
  position:absolute;
  border-radius:50%;
  filter:blur(40px);
  opacity:0.5;
}
.feature-card-deco.d1{width:150px;height:150px;top:-30px;right:-30px}
.feature-card-deco.d2{width:120px;height:120px;bottom:-20px;left:-20px}
/* 下载区域 */
.download-section{
  padding:100px 40px 120px;
  text-align:center;
  position:relative;
}
.download-section h2{
  font-size:40px;font-weight:700;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:-0.025em;
  background:linear-gradient(180deg,#ffffff 0%,#b8d4ff 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.download-section .desc{
  font-size:16px;
  color:rgba(255,255,255,0.5);
  margin-bottom:56px;
}
.download-options{
  display:flex;justify-content:center;gap:22px;
  flex-wrap:wrap;max-width:900px;margin:0 auto;
}
.download-option{
  border-radius:20px;
  padding:32px 30px;
  width:250px;
  transition:all 0.3s;
  cursor:pointer;
}
.download-option:hover{
  background:rgba(255,255,255,0.1);
  border-color:rgba(10,132,255,0.3);
  box-shadow:
    0 16px 56px rgba(10,132,255,0.2),
    inset 0 1px 0 rgba(255,255,255,0.15);
  transform:translateY(-4px);
}
.download-option-icon{
  width:56px;height:56px;
  margin:0 auto 18px;
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
}
.download-option-icon.win{
  background:linear-gradient(135deg,#0a84ff 0%,#0066cc 100%);
  box-shadow:0 4px 16px rgba(10,132,255,0.4);
}
.download-option-icon.zip{
  background:linear-gradient(135deg,#30d158 0%,#28a745 100%);
  box-shadow:0 4px 16px rgba(48,209,88,0.4);
}
.download-option-icon.web{
  background:linear-gradient(135deg,#5e5ce6 0%,#7c3aed 100%);
  box-shadow:0 4px 16px rgba(94,92,230,0.4);
}
.download-option-icon svg{width:28px;height:28px;color:#fff}
.download-option h3{
  font-size:16.5px;font-weight:600;
  color:#fff;margin-bottom:6px;
  letter-spacing:-0.01em;
}
.download-option .size{
  font-size:12.5px;
  color:rgba(255,255,255,0.4);
  margin-bottom:22px;
}
.download-option .btn{
  display:block;width:100%;
  padding:10px;
  background:linear-gradient(135deg,#0a84ff 0%,#0066cc 100%);
  color:#fff;border-radius:10px;
  font-size:13.5px;font-weight:500;
  text-decoration:none;
  transition:all 0.2s;
  box-shadow:0 2px 10px rgba(10,132,255,0.3);
}
.download-option .btn:hover{
  background:linear-gradient(135deg,#1a94ff 0%,#0077dd 100%);
}
.download-option .btn.secondary{
  background:rgba(255,255,255,0.08);
  color:#6cb6ff;
  border:1px solid rgba(10,132,255,0.25);
  box-shadow:none;
}
.download-option .btn.secondary:hover{
  background:rgba(10,132,255,0.12);
}
/* 页脚 */
.footer{
  border-top:1px solid rgba(255,255,255,0.06);
  padding:60px 40px 30px;
  position:relative;
}
.footer-content{
  max-width:1100px;margin:0 auto;
  display:flex;justify-content:space-between;
  align-items:flex-start;margin-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:600;color:#fff;
  margin-bottom:14px;letter-spacing:-0.01em;
}
.footer-brand-dot{
  width:30px;height:30px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  box-shadow:0 2px 10px rgba(0,0,0,0.3);
}
.footer-brand-dot img{
  width:100%;height:100%;
  object-fit:cover;
  display:block;
}
.footer-desc{
  font-size:13px;
  color:rgba(255,255,255,0.4);
  max-width:280px;line-height:1.7;
}
.footer-links{display:flex;gap:70px}
.footer-col h4{
  font-size:13px;font-weight:600;
  color:rgba(255,255,255,0.85);
  margin-bottom:18px;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{
  font-size:13px;
  color:rgba(255,255,255,0.4);
  text-decoration:none;
  transition:color 0.2s;
}
.footer-col a:hover{color:#6cb6ff}
.footer-bottom{
  max-width:1100px;margin:0 auto;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,0.05);
  display:flex;justify-content:space-between;
  font-size:12px;color:rgba(255,255,255,0.3);
}
/* 响应式 */
@media(max-width:1024px){
  .hero h1{font-size:42px}
  .feature-block,.feature-block.reverse{
    flex-direction:column;gap:44px;
  }
  .feature-text{text-align:center}
  .nav-links{display:none}
  .preview-sidebar{display:none}
}
@media(max-width:640px){
  .hero h1{font-size:32px}
  .hero .subtitle{font-size:14.5px}
  .download-btn{padding:13px 30px;font-size:15px}
  .feature-section{padding:70px 20px}
  .feature-text h2{font-size:27px}
  .feature-text p{font-size:14.5px}
  .download-section{padding:70px 20px 90px}
  .download-section h2{font-size:28px}
  .download-options{flex-direction:column;align-items:center}
  .download-option{width:100%;max-width:320px}
  .footer-content{flex-direction:column;gap:36px}
  .footer-links{flex-wrap:wrap;gap:36px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .preview-body{min-height:300px}
  .preview-msg{font-size:12.5px}
  .nav{padding:8px 16px;gap:16px}
}