*{box-sizing:border-box}
body{
  margin:0;background:#F4F6FA;color:#080D18;
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-.01em}
p{margin:0}

.ic{display:inline-block;height:1em;width:auto;vertical-align:-.125em;fill:currentColor}

#view-ca{
  background:linear-gradient(135deg,#0f1b31 0%,#1e3a8a 50%,#4c1d95 100%);
  min-height:100vh;
  color:#e2e8f0;
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:normal;
}
#view-ca *{box-sizing:border-box}
#view-ca h1,#view-ca h2,#view-ca h3,#view-ca h4{
  line-height:normal;letter-spacing:normal;font-weight:600;
}
#view-ca .ca-hero h1{font-weight:800;letter-spacing:-1px}
#view-ca .ca-sec-title{font-weight:700}
#view-ca .ca-cta-t{font-weight:700}
#view-ca .ca-feat-t{font-weight:700}

#view-ca h1,#view-ca h2,#view-ca h3,#view-ca p{padding:0}
#view-ca .ca-hero-sub{margin:0 auto 40px}
#view-ca .ca-sec-sub{margin:0 0 40px}
#view-ca .ca-feat-d{margin:0}
#view-ca .ca-cta-sub{margin:0 auto 50px}
#view-ca .ca-stat-lb{margin-top:5px}

.ca-container{max-width:1400px;margin:0 auto;padding:0 20px}

.ca-hero{padding:120px 0;text-align:center;position:relative}
.ca-hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at top right,rgba(94,234,212,.1) 0%,transparent 40%);
}
.ca-hero h1{
  font-size:56px;margin-bottom:20px;font-weight:800;letter-spacing:-1px;
  background:linear-gradient(to right,#5eead4,#0ea5e9);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  transform:translateZ(0);
  will-change:transform;
  backface-visibility:hidden;-webkit-backface-visibility:hidden;
}
.ca-hero-sub{font-size:22px;color:#94a3b8;max-width:700px;margin:0 auto 40px;line-height:1.6}
.ca-hero-stats{display:flex;justify-content:center;gap:60px;margin-top:60px}
.ca-stat{text-align:center}
.ca-stat-num{font-size:42px;font-weight:bold;color:#5eead4;display:block}
.ca-stat-lb{font-size:16px;color:#94a3b8}

.ca-btn-primary{
  background:linear-gradient(135deg,#0ea5e9 0%,#0d9488 100%);
  color:#fff;padding:12px 28px;border:none;border-radius:25px;
  font-size:16px;font-weight:600;cursor:pointer;
  box-shadow:0 4px 15px rgba(14,165,233,.4);
  transition:all .3s ease;
}
.ca-btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(14,165,233,.6)}
.ca-btn-outline{
  background:transparent;color:#5eead4;border:2px solid #5eead4;
  padding:12px 28px;border-radius:25px;font-size:16px;font-weight:600;
  cursor:pointer;
  transition:all .3s ease;
}
.ca-btn-outline:hover{background:#5eead4;color:#0f172a;transform:translateY(-2px);
  box-shadow:0 4px 15px rgba(94,234,212,.4)}
#caDownload{margin-top:40px}

.ca-features{padding:50px 0;background:rgba(15,23,42,.5);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.ca-sec-title{
  text-align:center;font-size:40px;margin-bottom:40px;color:#e2e8f0;position:relative;
}
.ca-sec-title::after{
  content:'';display:block;width:80px;height:4px;margin:20px auto;border-radius:2px;
  background:linear-gradient(to right,#0ea5e9,#5eead4);
}
.ca-sec-sub{text-align:center;color:#64748b;margin-bottom:40px;font-size:16px}
.ca-feat-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));
  gap:30px;margin-top:50px;
}
.ca-feat{
  background:rgba(30,41,59,.6);border:1px solid rgba(94,234,212,.1);
  border-radius:20px;padding:40px;position:relative;overflow:hidden;
  transition:transform .4s ease,border-color .4s ease,box-shadow .4s ease;
}
.ca-feat::before{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(94,234,212,.1) 0%,transparent 60%);
  opacity:0;transition:opacity .5s ease;
}
.ca-feat:hover::before{opacity:1}
.ca-feat:hover{transform:translateY(-10px);border-color:rgba(94,234,212,.3);
  box-shadow:0 20px 40px rgba(14,165,233,.2)}
.ca-badge{
  display:inline-block;padding:6px 16px;border-radius:20px;margin-bottom:15px;
  background:linear-gradient(135deg,#0ea5e9,#5eead4);color:#0f172a;
  font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:1px;
}
.ca-feat-ic{
  font-size:48px;color:#0ea5e9;margin-bottom:20px;display:inline-block;
  background:rgba(14,165,233,.1);width:80px;height:80px;line-height:80px;
  text-align:center;border-radius:20px;
}
.ca-feat-t{font-size:24px;margin-bottom:15px;color:#e2e8f0;font-weight:600}
.ca-feat-d{color:#94a3b8;line-height:1.7;font-size:16px}
.ca-tags{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.ca-tag{
  background:rgba(94,234,212,.1);color:#5eead4;padding:6px 14px;
  border-radius:20px;font-size:13px;font-weight:500;
}

.ca-cmp{
  background:rgba(30,41,59,.6);border:1px solid rgba(94,234,212,.1);
  border-radius:20px;margin-top:50px;
  overflow:hidden;overflow-x:auto;
}
.ca-cmp table{width:100%;border-collapse:collapse}
.ca-cmp th,.ca-cmp td{
  padding:20px;text-align:center;border-bottom:1px solid rgba(148,163,184,.1);
}
.ca-cmp th{background:rgba(15,23,42,.8);color:#5eead4;font-weight:600;white-space:nowrap}
.ca-cmp tr:last-child td{border-bottom:none}
.ca-cmp td:first-child{font-weight:500;color:#e2e8f0;white-space:nowrap}
.ca-cmp .ic{vertical-align:-.15em}
.ca-cmp .ic-check{color:#0ea5e9;font-size:20px}
.ca-cmp .ic-times{color:#ef4444;font-size:20px}

.ca-demo{padding:50px 0;text-align:center}
.ca-video{
  width:100%;max-width:900px;aspect-ratio:1920/1080;margin:0 auto;
  position:relative;overflow:hidden;border-radius:20px;
  box-shadow:0 25px 50px rgba(14,165,233,.3);
  border:1px solid rgba(94,234,212,.2);
}
.ca-video-mock{
  display:block;width:100%;height:100%;padding:0;border:0;cursor:pointer;
  background:#0f1b31 url(assets/ca/shipinfengmian.png) center/cover no-repeat;
  position:relative;
}
.ca-video-mock::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 50% 50%,rgba(15,27,49,.30) 0%,rgba(15,27,49,.14) 30%,rgba(15,27,49,0) 62%);
  transition:opacity .3s ease;
}
.ca-video-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:84px;height:84px;border-radius:50%;z-index:1;
  background:rgba(255,255,255,.96);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 28px rgba(15,27,49,.4),
             0 0 0 12px rgba(15,27,49,.16);
  transition:transform .3s ease,box-shadow .3s ease;
}
.ca-video-play .ic-play{height:32px;width:auto;fill:#0ea5e9;margin-left:5px}
.ca-video-mock:hover .ca-video-play{
  transform:translate(-50%,-50%) scale(1.08);
  box-shadow:0 12px 34px rgba(15,27,49,.5),
             0 0 0 14px rgba(15,27,49,.2);
}
.ca-video-mock:hover::after{opacity:.72}

.ca-cta{
  padding:120px 0;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(14,165,233,.1) 0%,rgba(94,234,212,.1) 100%);
}
.ca-cta::before{
  content:'';position:absolute;top:-100px;right:-100px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(94,234,212,.1) 0%,transparent 70%);
}
.ca-cta::after{
  content:'';position:absolute;bottom:-150px;left:-150px;width:400px;height:400px;
  background:radial-gradient(circle,rgba(14,165,233,.1) 0%,transparent 70%);
}
.ca-cta-t{font-size:48px;margin-bottom:20px;color:#e2e8f0;position:relative;z-index:1;font-weight:600}
.ca-cta-sub{
  font-size:20px;color:#94a3b8;margin:0 auto 50px;max-width:700px;
  position:relative;z-index:1;
}
.ca-cta-btns{
  display:flex;gap:20px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1;
}

@media (max-width:768px){
  .ca-hero h1{font-size:36px}
  .ca-hero-stats{flex-direction:column;gap:30px}
  .ca-feat-grid{grid-template-columns:1fr}
  .ca-cta-t{font-size:32px}
  .ca-cta-btns{flex-direction:column;align-items:center}
  .ca-video-play{width:64px;height:64px}
  .ca-video-play .ic-play{height:24px;margin-left:4px}
}

/* 小屏手机：整体缩放，保证主标题两行内、卡片不拥挤 */
@media (max-width:520px){
  .ca-hero{padding:76px 0}
  .ca-hero h1{font-size:27px;letter-spacing:-.5px}
  .ca-hero-sub{font-size:17px}
  .ca-hero-stats{gap:22px;margin-top:44px}
  .ca-stat-num{font-size:34px}
  .ca-features{padding:40px 0}
  .ca-sec-title{font-size:28px;margin-bottom:30px}
  .ca-sec-title::after{width:60px;height:3px;margin:14px auto}
  .ca-sec-sub{font-size:14px;margin-bottom:30px}
  #view-ca .ca-sec-sub{margin:0 0 30px}
  .ca-feat{padding:26px 22px;border-radius:16px}
  .ca-feat-ic{width:60px;height:60px;line-height:60px;font-size:34px;border-radius:16px}
  .ca-feat-t{font-size:20px}
  .ca-feat-d{font-size:15px}
  .ca-cmp th,.ca-cmp td{padding:13px 12px;font-size:14px}
  .ca-cta{padding:76px 0}
  .ca-cta-sub{font-size:17px;margin-bottom:36px}
  #view-ca .ca-cta-sub{margin:0 auto 36px}
  .ca-btn-primary,.ca-btn-outline{padding:11px 22px;font-size:15px}
  #caDownload{margin-top:30px}
  .ca-video-play{width:56px;height:56px}
  .ca-video-play .ic-play{height:20px;margin-left:3px}
}