/* FUTAI｜医疗健康科技全站样式 */
*{margin:0;padding:0;box-sizing:border-box;}
html,body{width:100%;min-height:100%;font-family:"PingFang SC","Microsoft YaHei",sans-serif;color:#333;background:#f7f6fb;scroll-behavior:smooth;}
a{text-decoration:none;color:inherit;}
ul,li{list-style:none;}
img{max-width:100%;display:block;}

:root{
  --blue:#4B2C82;
  --blue-deep:#2A1848;
  --gold:#2A9D8F;
  --gold-dark:#1F7A6F;
  --light:#f7f6fb;
  --white:#ffffff;
  --gray:#666666;
}

.container{width:100%;margin:0 auto;padding:0 15px;}
@media(min-width:768px){.container{max-width:720px;}}
@media(min-width:992px){.container{max-width:960px;}}
@media(min-width:1200px){.container{max-width:1200px;}}

.fade-in-up{opacity:0;transform:translateY(40px);transition:all 0.8s ease-out;}
.fade-in-up.visible{opacity:1;transform:translateY(0);}

.title-box{text-align:center;margin-bottom:50px;}
.title-box h2{font-size:28px;color:var(--blue);margin-bottom:12px;font-weight:600;}
.line-dec{width:80px;height:3px;background:linear-gradient(90deg,var(--blue),var(--gold));margin:0 auto;border-radius:3px;}
.title-box p{color:var(--gray);margin-top:18px;max-width:800px;margin-left:auto;margin-right:auto;line-height:1.8;}

.btn{display:inline-block;padding:12px 32px;border-radius:50px;font-size:15px;transition:all 0.4s ease;cursor:pointer;border:none;}
.btn-gold{background:linear-gradient(135deg,var(--gold-dark),var(--gold));color:#fff;box-shadow:0 4px 15px rgba(42,157,143,0.28);}
.btn-gold:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(42,157,143,0.38);}
.btn-blue{background:linear-gradient(135deg,var(--blue),#6B3FA0);color:#fff;box-shadow:0 4px 15px rgba(75,44,130,0.25);}
.btn-blue:hover{transform:translateY(-4px);box-shadow:0 8px 25px rgba(75,44,130,0.3);}

.card{background:#fff;border-radius:20px;box-shadow:0 4px 30px rgba(42,24,72,0.08);padding:35px;transition:all 0.5s ease;border:1px solid rgba(75,44,130,0.06);}
.card:hover{transform:translateY(-8px);box-shadow:0 15px 50px rgba(42,24,72,0.14);}
.section{padding:80px 0;}

.header{position:sticky;top:0;z-index:999;background:#fff;box-shadow:0 2px 20px rgba(0,0,0,0.06);}
.header-inner{display:flex;justify-content:space-between;align-items:center;height:80px;}
.logo{display:flex;align-items:center;gap:12px;height:80px;}
.logo img{height:52px;width:auto;object-fit:contain;}
.logo-text{font-size:22px;font-weight:800;color:var(--blue);letter-spacing:2px;white-space:nowrap;}

.nav-pc{display:flex;gap:28px;align-items:center;}
.nav-pc a{font-size:15px;color:#333;position:relative;font-weight:500;transition:0.3s;}
.nav-pc a:hover,.nav-pc a.active{color:var(--blue);}
.nav-pc a:not(.btn)::after{content:'';position:absolute;bottom:-5px;left:0;width:0;height:2px;background:var(--gold);transition:0.3s;}
.nav-pc a:not(.btn):hover::after,.nav-pc a:not(.btn).active::after{width:100%;}
.nav-pc a.btn.active{color:#fff;}

.menu-btn{display:none;font-size:28px;color:var(--blue);cursor:pointer;line-height:1;}
.mobile-menu{position:fixed;top:0;left:-100%;width:100%;height:100vh;background:linear-gradient(135deg,var(--blue-deep),var(--blue));z-index:9999;padding:80px 25px;transition:0.4s ease;overflow-y:auto;}
.mobile-menu.show{left:0;}
.mobile-menu a{display:block;color:#fff;font-size:18px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,0.1);transition:0.3s;}
.mobile-menu a:hover{padding-left:10px;color:#9EE5DC;}
.menu-close{position:absolute;top:25px;right:25px;font-size:32px;color:#fff;cursor:pointer;}

.banner{
  position:relative;overflow:hidden;min-height:84vh;display:flex;align-items:center;justify-content:center;
  color:#fff;text-align:center;padding:90px 15px;
  background:
    radial-gradient(circle at 15% 25%, rgba(42,157,143,0.22) 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(75,44,130,0.35) 0%, transparent 45%),
    linear-gradient(135deg,#2A1848 0%,#4B2C82 48%,#3A2268 100%);
}
.banner::before{
  content:'';position:absolute;inset:0;
  background-image:
    radial-gradient(circle,rgba(255,255,255,0.28) 1px,transparent 1px),
    radial-gradient(circle,rgba(42,157,143,0.3) 1px,transparent 1px);
  background-size:50px 50px,25px 25px;
  animation:bgTechDrift 18s linear infinite;z-index:1;
}
.banner .container{position:relative;z-index:3;}
.banner h1{font-size:42px;font-weight:800;letter-spacing:2px;margin-bottom:22px;text-shadow:0 0 35px rgba(42,157,143,0.3);}
.banner .divider{width:60px;height:2px;background:#fff;margin:0 auto 22px;opacity:0.85;}
.banner p{font-size:17px;opacity:0.92;max-width:850px;margin:0 auto 35px;line-height:1.9;}
@keyframes bgTechDrift{0%{transform:translate(0,0) rotate(0deg);}100%{transform:translate(60px,60px) rotate(360deg);}}

.page-banner{min-height:auto;padding:70px 15px;}
.page-banner h1{font-size:36px;margin-bottom:12px;}
.page-banner p{margin-bottom:0;font-size:16px;}

.advantage-three-rows{display:grid;grid-template-columns:1fr;gap:22px;max-width:900px;margin:0 auto;}
.advantage-row{
  display:flex;align-items:flex-start;gap:18px;
  background:linear-gradient(135deg,rgba(75,44,130,0.96),rgba(42,24,72,0.96));
  border:1px solid rgba(42,157,143,0.35);border-radius:18px;padding:28px;
  transition:all 0.4s ease;position:relative;overflow:hidden;
}
.advantage-row::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,#2A9D8F,#1F7A6F);}
.advantage-row:hover{transform:translateY(-8px);box-shadow:0 12px 45px rgba(42,24,72,0.35);border-color:rgba(42,157,143,0.65);}
.row-icon{
  flex-shrink:0;width:46px;height:46px;line-height:46px;text-align:center;border-radius:50%;
  background:linear-gradient(135deg,#2A9D8F,#1F7A6F);color:#fff;font-size:18px;font-weight:800;margin-top:4px;
}
.row-text h3{color:#9EE5DC;font-size:20px;margin-bottom:12px;font-weight:600;}
.row-text p{color:rgba(255,255,255,0.82);line-height:1.85;font-size:15px;}

.loop-box{max-width:900px;margin:0 auto;background:#fff;border-radius:20px;padding:40px;box-shadow:0 8px 40px rgba(42,24,72,0.08);line-height:1.9;color:#555;font-size:16px;}

.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.content-grid.cols-3{grid-template-columns:repeat(3,1fr);}
.content-card h3{color:var(--blue);font-size:20px;margin-bottom:14px;}
.content-card .num{color:var(--gold);font-size:14px;font-weight:700;margin-bottom:8px;display:block;}
.content-card p{color:var(--gray);line-height:1.85;font-size:15px;}

.prose{max-width:900px;margin:0 auto;}
.prose h3{color:var(--blue);font-size:22px;margin:28px 0 14px;}
.prose p{color:#555;line-height:1.9;font-size:16px;margin-bottom:16px;}

.news-list{max-width:900px;margin:0 auto;display:grid;gap:22px;}
.news-item{padding:28px 30px;}
.news-item h3{color:var(--blue);font-size:20px;margin-bottom:10px;}
.news-meta{color:#999;font-size:13px;margin-bottom:14px;}
.news-item p{color:var(--gray);line-height:1.8;font-size:15px;margin-bottom:14px;}
.news-more{color:var(--gold);font-size:14px;font-weight:600;}

.contact-card{max-width:640px;margin:0 auto;}
.contact-card p{font-size:16px;color:#333;line-height:2.2;margin-bottom:12px;}

.app-banner{
  background:
    radial-gradient(circle at 18% 28%, rgba(42,157,143,0.2) 0%, transparent 45%),
    linear-gradient(135deg,var(--blue-deep),#5A3694);
  color:#fff;padding:120px 15px 150px;text-align:center;position:relative;overflow:hidden;
}
.app-particles{
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle,rgba(42,157,143,0.4) 1px,transparent 1px),
    radial-gradient(circle,rgba(255,255,255,0.22) 1px,transparent 1px);
  background-size:40px 40px,20px 20px;
  animation:particleMove 30s linear infinite;pointer-events:none;
}
.app-light-flow{
  position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle,rgba(42,157,143,0.12) 0%,transparent 45%);
  animation:lightRotate 14s linear infinite;pointer-events:none;
}
@keyframes particleMove{0%{transform:translate(0,0) rotate(0deg);}100%{transform:translate(40px,40px) rotate(360deg);}}
@keyframes lightRotate{0%{transform:rotate(0deg);}100%{transform:rotate(360deg);}}
.app-banner .container{position:relative;z-index:2;}
.app-banner h1{font-size:40px;margin-bottom:16px;font-weight:800;letter-spacing:2px;}
.app-banner p{font-size:18px;opacity:0.92;max-width:720px;margin:0 auto;line-height:1.8;}

.app-section{margin-top:-70px;padding-bottom:80px;position:relative;z-index:3;}
.app-card{
  max-width:850px;margin:0 auto 40px;background:#fff;border-radius:24px;
  padding:45px;box-shadow:0 15px 60px rgba(0,0,0,0.12);border:1px solid rgba(75,44,130,0.1);
}
.app-card:last-child{margin-bottom:0;}
.app-desc{text-align:center;color:#666;line-height:1.8;margin-bottom:30px;}
.app-item{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-top:10px;}
.app-btn{
  padding:16px 45px;border-radius:50px;font-size:17px;color:#fff;font-weight:500;
  position:relative;overflow:hidden;transition:all 0.4s ease;min-width:220px;text-align:center;
}
.app-btn::before{
  content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.35),transparent);transition:left 0.8s ease;
}
.app-btn:hover::before{left:100%;}
.app-btn:hover{transform:translateY(-6px) scale(1.03);box-shadow:0 10px 30px rgba(0,0,0,0.15);}
.app-ios{background:#111;}
.app-android{background:linear-gradient(135deg,var(--blue),#6B3FA0);}
.app-version-tip{text-align:center;margin-top:30px;color:#999;font-size:14px;}
.app-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:28px 0 8px;}
.app-tag{
  padding:8px 18px;background:linear-gradient(90deg,rgba(75,44,130,0.08),rgba(42,157,143,0.12));
  color:var(--blue);border-radius:30px;font-size:13px;font-weight:500;
}

.features{padding:20px 0 90px;}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature-card{
  padding:32px 24px;background:#fff;border-radius:18px;text-align:center;
  box-shadow:0 6px 25px rgba(42,24,72,0.07);transition:0.4s ease;border:1px solid rgba(75,44,130,0.08);
}
.feature-card:hover{transform:translateY(-10px);box-shadow:0 15px 45px rgba(42,24,72,0.13);}
.feature-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--gold),var(--gold-dark));
  color:#fff;font-size:22px;font-weight:800;
}
.feature-card h3{font-size:18px;color:var(--blue);margin-bottom:10px;}
.feature-card p{font-size:14px;color:var(--gray);line-height:1.7;}

.footer{background:var(--blue-deep);color:#fff;padding:70px 0 35px;}
.footer-box{display:grid;grid-template-columns:repeat(3,1fr);gap:45px;margin-bottom:45px;}
.footer h4{margin-bottom:22px;padding-bottom:12px;border-bottom:2px solid var(--gold);display:inline-block;font-size:18px;}
.footer p{opacity:0.85;line-height:1.9;font-size:15px;}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.footer-nav a{opacity:0.85;font-size:15px;transition:0.3s;}
.footer-nav a:hover{opacity:1;color:#9EE5DC;}
.footer-copyright{text-align:center;border-top:1px solid rgba(255,255,255,0.1);padding-top:25px;opacity:0.75;font-size:14px;}

@media(max-width:992px){
  .logo img{height:44px;}
  .logo-text{font-size:18px;}
  .nav-pc{gap:18px;}
  .banner h1{font-size:32px;}
  .content-grid.cols-3{grid-template-columns:1fr 1fr;}
}

@media(max-width:768px){
  .nav-pc{display:none !important;}
  .menu-btn{display:block;}
  .logo img{height:40px;}
  .logo-text{font-size:16px;}
  .banner{min-height:70vh;padding:70px 15px;}
  .banner h1,.page-banner h1{font-size:26px;letter-spacing:1px;}
  .banner p{font-size:15px;}
  .title-box h2{font-size:22px;}
  .content-grid,.content-grid.cols-3,.feature-grid{grid-template-columns:1fr;}
  .advantage-row{flex-direction:column;align-items:center;text-align:center;}
  .advantage-row::before{width:100%;height:4px;}
  .app-banner{padding:90px 15px 120px;}
  .app-banner h1{font-size:26px;}
  .app-card{padding:30px 20px;margin-bottom:28px;}
  .app-item{flex-direction:column;gap:16px;}
  .app-btn{width:100%;min-width:0;}
  .footer-box{grid-template-columns:1fr;gap:30px;}
  .card{padding:25px;}
}