*{box-sizing:border-box;margin:0;padding:0}
:root{
  --mint:#2fd4a0;--cyan:#22d3ee;--blue:#4f7cff;
  --ink:#0e2a3a;--sub:#5a7789;--bg:#f4fbf9;
  --shadow:0 18px 46px rgba(20,90,110,.10);
}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.8;
}
a{color:var(--blue);text-decoration:none}
img{max-width:100%;display:block}

.progress-bar{position:fixed;top:0;left:0;right:0;height:4px;z-index:99}
.progress-bar span{display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--mint),var(--cyan),var(--blue))}

.blobs{position:fixed;inset:0;overflow:hidden;z-index:-1}
.blobs i{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55}
.b1{width:420px;height:420px;background:#a8f0d8;top:-90px;left:-70px}
.b2{width:360px;height:360px;background:#bfe4ff;top:30%;right:-90px}
.b3{width:340px;height:340px;background:#ffe9a8;bottom:-90px;left:35%}
.blobs i{animation:float 14s ease-in-out infinite}
.b2{animation-duration:19s}
.b3{animation-duration:24s}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(40px,-50px) scale(1.12)}
}

.nav{
  position:sticky;top:0;z-index:50;display:flex;
  align-items:center;justify-content:space-between;
  padding:18px 6vw;backdrop-filter:blur(12px);
  background:rgba(255,255,255,.72);
  border-bottom:1px solid rgba(47,212,160,.18);
}
.logo{font-weight:700;display:flex;align-items:center;gap:10px}
.logo .dot{width:13px;height:13px;border-radius:50%;
  background:linear-gradient(135deg,var(--mint),var(--blue))}
.menu{display:flex;gap:26px;list-style:none;font-size:15px}
.menu a{color:var(--ink);opacity:.8;padding-bottom:4px;
  border-bottom:2px solid transparent;transition:.25s}
.menu a:hover{opacity:1;color:var(--mint);border-color:var(--mint)}

.hero{padding:70px 6vw 90px;text-align:center}
.hero-inner{max-width:860px;margin:0 auto}
.tag{
  display:inline-block;padding:7px 18px;border-radius:99px;
  background:rgba(47,212,160,.14);color:#12966b;
  font-size:14px;margin-bottom:22px;
  animation:pop .8s ease both;
}
@keyframes pop{from{opacity:0;transform:translateY(14px)}to{opacity:1}}
.hero h1{
  font-size:clamp(30px,5.2vw,58px);line-height:1.25;
  letter-spacing:1px;margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--mint),var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--sub);font-size:clamp(15px,1.6vw,18px)}
.hero-btns{margin-top:34px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{padding:13px 30px;border-radius:99px;font-weight:600;transition:.25s}
.btn.primary{color:#fff;background:linear-gradient(120deg,var(--mint),var(--blue));
  box-shadow:0 12px 26px rgba(47,212,160,.36)}
.btn.primary:hover{transform:translateY(-3px) scale(1.03)}
.btn.ghost{border:2px solid var(--mint);color:#12966b}
.btn.ghost:hover{background:var(--mint);color:#fff}

.section{padding:80px 6vw;max-width:1200px;margin:0 auto}
.section.alt{max-width:100%;background:rgba(255,255,255,.6)}
.section.alt>*{max-width:1200px;margin-left:auto;margin-right:auto}
.sec-head{text-align:center;margin-bottom:46px}
.sec-head .num{font-weight:800;font-size:15px;letter-spacing:3px;color:var(--mint)}
.sec-head h2{font-size:clamp(24px,3.2vw,36px);margin:6px 0 10px}
.sec-head p{color:var(--sub)}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.grid-2,.grid-4{margin-bottom:24px}
.card{
  background:#fff;border-radius:20px;padding:28px;
  box-shadow:var(--shadow);position:relative;overflow:hidden;transition:.3s;
}
.card::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--mint),var(--cyan),var(--blue));
  transform:scaleX(0);transform-origin:left;transition:.35s;
}
.card:hover{transform:translateY(-8px)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--sub);font-size:15px}
.card.mini{text-align:center;padding:24px 18px}
.card.mini .ico{
  display:block;font-size:26px;margin-bottom:10px;color:var(--mint);
}
.card.link .go{display:inline-block;margin-top:10px;font-size:14px;color:var(--blue)}
.card.link:hover{background:#f7fffd}
.step-no{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  color:#fff;font-weight:700;margin-bottom:14px;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:0 8px 18px rgba(79,124,255,.3);
}
ul.plain,ul.links{list-style:none;font-size:15px;color:var(--sub)}
ul.plain li{margin:8px 0;padding-left:18px;position:relative}
ul.plain li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  border-radius:50%;background:var(--mint);
}
ul.links li{margin:8px 0}
code{background:#eef7f5;padding:2px 7px;border-radius:6px;color:#128a68}

.note{
  background:linear-gradient(100deg,rgba(47,212,160,.14),rgba(34,211,238,.12));
  border-left:4px solid var(--mint);border-radius:12px;
  padding:14px 18px;margin:16px 0;font-size:15px;color:#166b58;
}

.timeline{position:relative;padding-left:60px}
.timeline::before{
  content:"";position:absolute;left:19px;top:8px;bottom:8px;width:3px;
  background:linear-gradient(180deg,var(--mint),var(--cyan),var(--blue));
  border-radius:3px;
}
.tl-item{position:relative;margin-bottom:40px}
.tl-dot{
  position:absolute;left:-60px;top:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;color:#fff;font-weight:700;
  background:linear-gradient(135deg,var(--mint),var(--blue));
  box-shadow:0 0 0 6px rgba(47,212,160,.18);
}
.tl-body h3{font-size:20px;margin-bottom:8px}
.tl-body p{color:var(--sub)}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px;margin-top:18px}
figure{background:#fff;border-radius:16px;padding:12px;box-shadow:var(--shadow);transition:.3s}
figure:hover{transform:translateY(-6px) scale(1.01)}
figure img{width:100%;max-height:430px;object-fit:contain;background:#eef7f5;border-radius:10px;cursor:zoom-in}
figcaption{text-align:center;font-size:14px;color:var(--sub);padding:10px 0 2px}

.cta{text-align:center;padding:36px 24px;border-radius:22px;color:#fff;
  background:linear-gradient(120deg,var(--mint),var(--blue))}
.cta h3{font-size:22px;margin-bottom:10px}
.cta p{opacity:.94}

.foot{text-align:center;padding:40px 6vw;color:var(--sub);font-size:14px}
.foot b{color:var(--ink)}
.foot span{display:block;margin-top:6px;opacity:.8}

.reveal{opacity:0;transform:translateY(26px)}
.reveal.in{opacity:1;transform:none;
  transition:opacity .7s ease,transform .7s cubic-bezier(.2,.8,.2,1)}

.lightbox{position:fixed;inset:0;background:rgba(6,30,40,.86);display:none;
  place-items:center;z-index:100;cursor:zoom-out}
.lightbox img{max-width:94vw;max-height:92vh;border-radius:12px}

@media(max-width:720px){
  .menu{gap:14px;font-size:13px}
  .section{padding:60px 5vw}
  .timeline{padding-left:46px}
  .timeline::before{left:13px}
  .tl-dot{left:-46px;width:32px;height:32px;font-size:14px}
  .grid-2{grid-template-columns:1fr}
  .hero{padding:50px 5vw 70px}
}