*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:#0b2b1e;
  background-color:#f4faf6;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(900px 560px at 88% -6%, rgba(52,211,153,.26), transparent 62%),
    radial-gradient(820px 520px at -8% 30%, rgba(22,163,74,.14), transparent 64%),
    radial-gradient(760px 520px at 60% 92%, rgba(52,211,153,.16), transparent 66%),
    linear-gradient(180deg,#eef9f2 0%,#f7fcf9 48%,#eef8f3 100%);
}
.site-header,main,.site-footer{position:relative;z-index:1}
img{max-width:100%}
a{color:#0f8f3f}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.3;color:#062a1b}
section[id]{scroll-margin-top:80px}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,252,249,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid #dcece2;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding-top:12px;padding-bottom:12px;position:relative;
}
.brand{display:flex;align-items:center;flex:0 0 auto;max-width:180px;text-decoration:none}
.ai-page-logo{display:block;max-height:44px;width:auto}
.nav{display:flex;align-items:center;gap:16px;min-width:0}
.nav-links{
  display:flex;align-items:center;gap:0;
  list-style:none;margin:0;padding:0;
}
.nav-links a{
  display:block;padding:9px 11px;font-size:14.5px;color:#16432d;
  text-decoration:none;border-radius:8px;white-space:nowrap;
  transition:background .2s,color .2s;
}
.nav-links a:hover,.nav-links a:focus-visible{background:rgba(22,163,74,.1);color:#0f8f3f}
.nav-toggle{
  display:none;width:42px;height:38px;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;padding:0;
  border:1px solid #cfe8d9;background:#fff;border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#0f7a3d;border-radius:2px;transition:transform .25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-size:15px;font-weight:600;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
}
.btn-primary{
  background:linear-gradient(135deg,#22c55e,#0f9d58);color:#fff;
  box-shadow:0 12px 24px -14px rgba(15,143,63,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 30px -16px rgba(15,143,63,1);color:#fff}
.btn-ghost{background:#fff;color:#0f7a3d;border-color:#b9e3c8}
.btn-ghost:hover{background:#eef9f1;transform:translateY(-2px);color:#0b7a3d}
.btn-block{width:100%;margin-top:18px}

/* hero */
.hero{position:relative;overflow:hidden;padding:70px 0 62px}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;right:-150px;top:-190px;
  border-radius:50%;background:radial-gradient(circle,rgba(52,211,153,.34),transparent 66%);
}
.hero::after{
  content:"";position:absolute;width:440px;height:440px;left:-180px;bottom:-220px;
  border-radius:50%;background:radial-gradient(circle,rgba(22,163,74,.22),transparent 66%);
}
.hero-inner{
  position:relative;z-index:1;display:grid;
  grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);
  gap:44px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
  background:#e4f8ea;border:1px solid #c4ebd2;color:#0f7a3d;
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{
  font-size:clamp(28px,4.2vw,45px);margin:20px 0 16px;
  letter-spacing:-.02em;line-height:1.24;color:#062a1b;
}
.hero h1 .hl{color:#0f9d58}
.hero-sub{margin:0;font-size:16px;color:#3d5b4e;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:26px 0 0;padding:0}
.hero-tags li{
  font-size:13.5px;color:#0f7a3d;background:#e8f8ee;
  border:1px solid #c9ecda;border-radius:999px;padding:6px 14px;
}
.hero-side{display:flex;flex-direction:column;gap:14px}
.metric-card{
  display:flex;align-items:center;gap:16px;padding:16px 20px;
  background:#fff;border:1px solid #dcefe3;border-radius:16px;
  box-shadow:0 18px 32px -28px rgba(11,43,30,.7);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.metric-card:hover{transform:translateY(-3px);border-color:#a9dfbe;box-shadow:0 22px 36px -26px rgba(11,43,30,.5)}
.metric-card strong{font-size:27px;color:#0f9d58;line-height:1;letter-spacing:-.02em;min-width:56px}
.metric-card span{font-size:14px;color:#3d5b4e}
.metric-card.highlight{background:linear-gradient(135deg,#eafaf0,#ffffff);border-color:#b9e3c8}

/* sections */
.section{padding:64px 0}
.section-head{max-width:770px;margin:0 auto 42px;text-align:center}
.kicker{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:#0f9d58;margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{font-size:clamp(23px,3vw,32px);margin:0 0 14px}
.section-head p{margin:0;font-size:15.5px;color:#41604f}

.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

.card{
  background:#fff;border:1px solid #e0efe6;border-radius:16px;padding:22px;
  box-shadow:0 14px 28px -26px rgba(11,43,30,.75);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.card:hover{transform:translateY(-4px);border-color:#b9e3c8;box-shadow:0 24px 38px -28px rgba(11,43,30,.55)}
.card h3{font-size:16.5px;margin:0 0 8px}
.card p{margin:0;font-size:14px;color:#4a6656;line-height:1.72}
.service-card{border-left:3px solid #22c55e}
.card-tag{
  display:inline-block;font-size:12px;font-weight:600;color:#0f7a3d;
  background:#eafaf0;border-radius:999px;padding:3px 10px;margin-bottom:10px;
}

/* tag cloud */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:30px}
.tag-cloud span{
  font-size:13.5px;color:#14603c;background:#fff;border:1px solid #d7ecdf;
  border-radius:999px;padding:7px 15px;transition:transform .2s,background .2s,color .2s,border-color .2s;
}
.tag-cloud span:hover{transform:translateY(-2px);background:#0f9d58;color:#fff;border-color:#0f9d58}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px}
.step{
  background:#fff;border:1px solid #dcefe3;border-radius:16px;padding:20px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.step:hover{transform:translateY(-4px);border-color:#b9e3c8;box-shadow:0 22px 34px -28px rgba(11,43,30,.6)}
.step-num{
  width:34px;height:34px;border-radius:10px;background:#e6f8ee;color:#0f8f3f;
  font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.step h3{font-size:15.5px;margin:0 0 8px}
.step p{margin:0;font-size:13.5px;color:#4a6656}

/* cases */
.case-card{
  background:#fff;border:1px solid #e0efe6;border-radius:18px;overflow:hidden;
  box-shadow:0 16px 30px -28px rgba(11,43,30,.8);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.case-card:hover{transform:translateY(-4px);border-color:#b9e3c8;box-shadow:0 26px 40px -30px rgba(11,43,30,.55)}
.case-media{aspect-ratio:4/3;overflow:hidden;background:#eaf6ee}
.case-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:18px 20px 22px}
.case-body h3{font-size:16px;margin:0 0 8px}
.case-body p{margin:0;font-size:14px;color:#4a6656}

/* review */
.review-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px;align-items:start}
.score-card{
  background:linear-gradient(160deg,#0f9d58,#0a7a44);color:#fff;
  border-radius:20px;padding:28px;box-shadow:0 30px 48px -34px rgba(10,122,68,.95);
}
.score-stars{color:#ffe28a;font-size:20px;letter-spacing:3px;margin-bottom:10px}
.score-num{font-size:44px;font-weight:800;margin:0;line-height:1;color:#fff}
.score-num span{font-size:16px;font-weight:500;color:#c9f0da}
.score-label{margin:12px 0 8px;font-size:15px;font-weight:600;color:#eafff2}
.score-desc{margin:0 0 20px;font-size:13.5px;color:#c9f0da;line-height:1.72}
.score-card .btn{background:#fff;color:#0a7a44;box-shadow:none;width:100%}
.score-card .btn:hover{background:#eafff2;transform:translateY(-2px);color:#0a7a44}

.table-wrap{overflow-x:auto;border:1px solid #dcefe3;border-radius:16px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px}
thead th{
  background:#eaf8ef;color:#0b3a24;font-weight:700;text-align:left;
  padding:14px 16px;white-space:nowrap;border-bottom:1px solid #d5ecdf;
}
tbody td{padding:13px 16px;border-bottom:1px solid #eef7f1;color:#3d5b4e;vertical-align:top}
tbody tr:last-child td{border-bottom:none}
tbody td:first-child{font-weight:600;color:#0b2b1e}
tbody td:nth-child(2){color:#0f7a3d;font-weight:600}
tbody tr:hover{background:#f7fdf9}

/* form */
.form-layout{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:40px;align-items:start}
.form-intro h2{font-size:clamp(23px,3vw,31px);margin:0 0 14px}
.form-intro p{margin:0 0 20px;font-size:15.5px;color:#41604f}
.check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.check-list li{
  position:relative;padding-left:28px;font-size:14.5px;color:#31513f;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:16px;height:16px;border-radius:50%;
  background:#d9f5e5;border:1px solid #9fe0ba;
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:6px;height:3px;
  border-left:2px solid #0f9d58;border-bottom:2px solid #0f9d58;transform:rotate(-45deg);
}
.form-card{
  background:#fff;border:1px solid #dcefe3;border-radius:20px;padding:26px;
  box-shadow:0 28px 44px -36px rgba(11,43,30,.8);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:7px;font-size:14px;color:#31513f;font-weight:600}
.field.full{grid-column:1 / -1}
.field input,.field select,.field textarea{
  width:100%;border:1px solid #cfe6d8;border-radius:10px;padding:11px 13px;
  font-size:14.5px;font-family:inherit;font-weight:400;color:#0b2b1e;background:#fafffb;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:#22c55e;box-shadow:0 0 0 3px rgba(34,197,94,.16);
}
.form-note{font-size:12.5px;color:#6a8478;margin:12px 0 0}

/* faq */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid #dcefe3;border-radius:14px;
  padding:2px 20px;margin-bottom:12px;transition:border-color .25s,box-shadow .25s;
}
.faq-item[open]{border-color:#a9dfbe;box-shadow:0 20px 34px -32px rgba(11,43,30,.9)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 0;font-weight:600;font-size:15.5px;
  color:#0b2b1e;display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:20px;color:#0f9d58;line-height:1;flex:0 0 auto;
  transition:transform .25s;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin:0 0 18px;color:#476454;font-size:14.5px}

/* testimonials */
.review-card{
  background:#fff;border:1px solid #e0efe6;border-radius:16px;padding:22px;
  box-shadow:0 14px 28px -26px rgba(11,43,30,.75);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.review-card:hover{transform:translateY(-4px);border-color:#b9e3c8;box-shadow:0 24px 38px -28px rgba(11,43,30,.55)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;
  background:linear-gradient(135deg,#c9f2d8,#8ee3b1);color:#0a6b3c;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.review-meta strong{display:block;font-size:14.5px;color:#0b2b1e}
.review-meta span{display:block;font-size:12.5px;color:#6a8478}
.review-card p{margin:0;font-size:14px;color:#3d5b4e;line-height:1.75}

/* article lists */
.list-card{
  background:#fff;border:1px solid #e0efe6;border-radius:18px;padding:24px;
  box-shadow:0 16px 30px -30px rgba(11,43,30,.8);
}
.list-card h3{font-size:17px;margin:0 0 16px}
.link-list{list-style:none;margin:0;padding:0}
.link-list li{border-top:1px dashed #e2f0e8;padding:11px 0}
.link-list li:first-child{border-top:none;padding-top:0}
.link-list a{
  font-size:14.5px;color:#16432d;text-decoration:none;
  display:inline-flex;align-items:center;gap:8px;transition:color .2s,transform .2s;
}
.link-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:#22c55e;flex:0 0 auto}
.link-list a:hover{color:#0f9d58;transform:translateX(3px)}

/* join */
.join-banner{
  background:linear-gradient(135deg,#e6f9ed,#f6fdf9);
  border:1px solid #bfe8ce;border-radius:22px;padding:34px;
  display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:center;
  box-shadow:0 30px 50px -42px rgba(11,43,30,.85);
}
.join-copy h2{font-size:clamp(22px,2.8vw,30px);margin:0 0 14px}
.join-copy p{margin:0 0 22px;font-size:15px;color:#3d5b4e}
.join-points{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.join-points li{
  background:#fff;border:1px solid #d7ecdf;border-radius:12px;padding:12px 16px;
  font-size:14px;color:#31513f;
}

/* contact */
.contact-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:28px;align-items:start}
.contact-list{
  background:#fff;border:1px solid #e0efe6;border-radius:18px;padding:8px 24px;
  box-shadow:0 16px 30px -30px rgba(11,43,30,.8);
}
.contact-item{
  display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline;
  padding:15px 0;border-top:1px dashed #e2f0e8;
}
.contact-item:first-child{border-top:none}
.contact-label{font-size:13.5px;color:#6a8478;min-width:96px}
.contact-item a,.contact-item span.value{font-size:15px;color:#0b2b1e;font-weight:600;text-decoration:none}
.contact-item a:hover{color:#0f9d58}
.qr-card{
  background:#fff;border:1px solid #e0efe6;border-radius:18px;padding:24px;text-align:center;
  box-shadow:0 16px 30px -30px rgba(11,43,30,.8);
}
.qr-card img{width:160px;max-width:100%;height:auto;display:inline-block;border-radius:10px}
.qr-card p{margin:14px 0 0;font-size:14px;color:#41604f}

/* footer */
.site-footer{background:#0a2b1d;color:#a9cdb9;padding:48px 0 24px;margin-top:8px}
.footer-top{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:36px}
.footer-name{font-size:19px;font-weight:800;color:#ffffff;margin:0 0 12px;letter-spacing:.02em}
.footer-brand p{margin:0;font-size:13.5px;color:#9dc4ae;line-height:1.8;max-width:340px}
.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.footer-col h3{font-size:14px;color:#eafff2;margin:0 0 12px;font-weight:700;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px 18px}
.footer-col a{color:#b9e3ca;text-decoration:none;font-size:13.5px;transition:color .2s}
.footer-col a:hover{color:#ffffff}
.footer-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid rgba(169,205,185,.22);
  font-size:13px;color:#8fb8a1;
}
.footer-bottom a{color:#b9e3ca;text-decoration:none}
.footer-bottom a:hover{color:#ffffff}

/* float tools */
.float-tools{position:fixed;right:18px;bottom:24px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-btn{
  width:48px;height:48px;border-radius:14px;border:1px solid #cfe8d9;background:#fff;
  color:#0f7a3d;display:flex;align-items:center;justify-content:center;
  cursor:pointer;padding:0;text-decoration:none;
  box-shadow:0 14px 26px -18px rgba(11,43,30,.9);
  transition:transform .2s,background .2s,color .2s,opacity .2s;
}
.float-btn:hover{transform:translateY(-3px);background:#0f9d58;color:#fff;border-color:#0f9d58}
.back-top{opacity:0;visibility:hidden}
.back-top.is-show{opacity:1;visibility:visible}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.reveal.is-visible{opacity:1;transform:none}

@media (max-width:960px){
  .nav-toggle{display:flex}
  .nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:10px;
    background:#ffffff;border-bottom:1px solid #dcece2;
    box-shadow:0 24px 34px -30px rgba(11,43,30,.8);
    padding:12px 20px 18px;
  }
  .nav.is-open{display:flex}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{padding:11px 8px;border-radius:8px}
  .nav-cta{width:100%}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-side{flex-direction:row;flex-wrap:wrap}
  .metric-card{flex:1 1 200px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .review-layout{grid-template-columns:1fr}
  .form-layout{grid-template-columns:1fr;gap:28px}
  .join-banner{grid-template-columns:1fr;padding:28px}
  .contact-layout{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:28px}
}
@media (max-width:640px){
  .section{padding:48px 0}
  .hero{padding:52px 0 46px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .hero-side{flex-direction:column}
  .metric-card{flex:1 1 auto}
  .footer-links{grid-template-columns:1fr}
  .contact-list{padding:4px 18px}
  .float-tools{right:12px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}