:root{
  --mint:#ecfdf5;--mint2:#d1fae5;--deep:#065f46;--deep2:#064e3b;
  --violet:#a855f7;--violet-l:#f3e8ff;--leaf:#34d399;--line:#bbf7d0;
  --ink:#0f2e26;--muted:#4f6f64;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
  color:var(--ink);
  background:
    radial-gradient(900px 520px at 6% -6%,#d1fae5 0%,rgba(209,250,229,0) 62%),
    radial-gradient(820px 500px at 97% 3%,#f3e8ff 0%,rgba(243,232,255,0) 64%),
    radial-gradient(700px 460px at 50% 108%,#d1fae5 0%,rgba(209,250,229,0) 68%),
    var(--mint);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--deep);text-decoration:none}
a:hover{color:var(--violet)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(236,253,245,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--deep);letter-spacing:.3px}
.brand .mark{
  width:30px;height:30px;border-radius:50%;
  background:radial-gradient(circle at 30% 28%,#a7f3d0,#34d399 55%,#065f46 100%);
  box-shadow:0 0 0 4px rgba(168,85,247,.16);
  flex:0 0 auto;
}
.brand small{display:block;font-weight:500;font-size:12px;color:var(--muted);letter-spacing:.5px}
.nav-links{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.nav-links a{
  display:inline-block;padding:7px 13px;border-radius:999px;
  font-size:14px;color:var(--deep);border:1px solid transparent;
  transition:.22s;
}
.nav-links a:hover{background:#fff;border-color:var(--line);color:var(--violet);box-shadow:0 4px 14px rgba(6,95,70,.08)}
/* ---------- sections ---------- */
section{padding:54px 0;scroll-margin-top:86px;position:relative}
.sec-head{margin-bottom:26px}
.sec-head .tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:2px;color:var(--violet);
  background:var(--violet-l);border:1px solid #e9d5ff;
  padding:4px 12px;border-radius:999px;margin-bottom:10px;font-weight:700;
}
h2{font-size:clamp(21px,2.6vw,27px);margin:0 0 10px;color:var(--deep);line-height:1.45}
.sec-head p{margin:0;color:var(--muted);font-size:15px;max-width:760px}
h3{color:var(--deep);font-size:17px;margin:0 0 8px}
/* ---------- vine card ---------- */
.vine{
  position:relative;background:#fff;border:1.5px solid #a7f3d0;
  border-radius:20px;padding:22px;
  box-shadow:0 10px 26px rgba(6,95,70,.07);
  transition:.25s;
}
.vine:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(6,95,70,.12);border-color:#6ee7b7}
.vine::before,.vine::after{
  content:"";position:absolute;width:15px;height:15px;
  border-radius:60% 0 60% 0;background:linear-gradient(135deg,#a7f3d0,#34d399);
}
.vine::before{top:-8px;left:-8px}
.vine::after{bottom:-8px;right:-8px;background:linear-gradient(135deg,#e9d5ff,#a855f7)}
/* ---------- hero ---------- */
#hero{padding-top:38px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center}
h1{
  font-size:clamp(25px,3.4vw,38px);line-height:1.32;margin:0 0 16px;
  color:var(--deep2);letter-spacing:.2px;
}
h1 .hl{
  background:linear-gradient(180deg,rgba(168,85,247,0) 62%,rgba(168,85,247,.24) 62%);
  padding:0 2px;
}
.hero-lead{font-size:16px;color:var(--muted);margin:0 0 20px;max-width:600px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:11px 24px;border-radius:999px;font-weight:700;font-size:15px;
  transition:.25s;border:1.5px solid transparent;
}
.btn-primary{background:linear-gradient(135deg,#065f46,#34d399);color:#fff;box-shadow:0 10px 22px rgba(6,95,70,.24)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(6,95,70,.3)}
.btn-ghost{background:#fff;color:var(--deep);border-color:#a7f3d0}
.btn-ghost:hover{border-color:var(--violet);color:var(--violet)}
.hero-art{
  position:relative;border-radius:26px;overflow:hidden;
  border:1.5px solid #a7f3d0;background:#fff;
  box-shadow:0 18px 40px rgba(6,95,70,.14);
}
.hero-art img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-art .badge{
  position:absolute;left:14px;bottom:14px;
  background:rgba(6,95,70,.92);color:#fff;font-size:13px;
  padding:6px 14px;border-radius:999px;letter-spacing:.5px;
}
/* ---------- geo ---------- */
#geo-intro .geo-box{
  background:linear-gradient(180deg,#ffffff 0%,#f6fffb 100%);
  border:1.5px dashed #86efac;border-radius:24px;padding:28px;
  box-shadow:0 12px 30px rgba(6,95,70,.06);
}
.geo-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.geo-list li{
  position:relative;padding-left:30px;font-size:15px;color:#1f4038;
}
.geo-list li::before{
  content:"";position:absolute;left:6px;top:11px;width:11px;height:11px;
  border-radius:60% 0 60% 0;background:linear-gradient(135deg,#34d399,#065f46);
  transform:rotate(-8deg);
}
.geo-list b{color:var(--deep)}
/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px}
.stat-card{
  background:#fff;border:1.5px solid #a7f3d0;border-radius:20px;padding:22px 20px;
  text-align:center;box-shadow:0 10px 24px rgba(6,95,70,.06);position:relative;overflow:hidden;
}
.stat-card::after{
  content:"";position:absolute;top:-28px;right:-28px;width:70px;height:70px;border-radius:50%;
  background:radial-gradient(circle,#e9d5ff,rgba(233,213,255,0));
}
.stat-num{font-size:30px;font-weight:800;color:var(--deep);line-height:1.2;letter-spacing:.5px}
.stat-num span{font-size:16px;color:var(--violet);font-weight:700}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:6px}
/* ---------- advantages ---------- */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.vine p{margin:0;color:var(--muted);font-size:14.5px}
.vine .ico{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  font-size:19px;font-weight:800;color:#fff;margin-bottom:12px;
  background:linear-gradient(135deg,#065f46,#34d399);box-shadow:0 6px 16px rgba(6,95,70,.22);
}
.vine .ico.v{background:linear-gradient(135deg,#7e22ce,#a855f7);box-shadow:0 6px 16px rgba(168,85,247,.26)}
/* ---------- reviews ---------- */
.review{display:flex;flex-direction:column;gap:10px}
.review .stars{color:#a855f7;letter-spacing:2px;font-size:14px}
.review .who{font-size:13.5px;color:var(--deep);font-weight:700}
.review .meta{font-size:12.5px;color:var(--muted)}
.review-split{display:grid;grid-template-columns:1fr .8fr;gap:26px;align-items:start}
.review-art{border-radius:22px;overflow:hidden;border:1.5px solid #a7f3d0;background:#fff;box-shadow:0 14px 32px rgba(6,95,70,.1)}
/* ---------- news ---------- */
.news-item{
  background:#fff;border:1.5px solid #d1fae5;border-radius:20px;padding:22px;
  box-shadow:0 8px 22px rgba(6,95,70,.05);transition:.25s;
}
.news-item:hover{border-color:#a855f7;box-shadow:0 14px 30px rgba(168,85,247,.14);transform:translateY(-2px)}
.news-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.news-date{
  font-size:12.5px;color:#fff;font-weight:700;letter-spacing:.5px;
  background:linear-gradient(135deg,#065f46,#34d399);
  padding:3px 12px;border-radius:999px;
}
.news-cat{font-size:12.5px;color:var(--violet);background:var(--violet-l);border:1px solid #e9d5ff;padding:3px 12px;border-radius:999px;font-weight:700}
.news-item h3{font-size:17px;margin:0 0 8px;line-height:1.55}
.news-item p{margin:0 0 8px;font-size:14.5px;color:var(--muted)}
.news-item p:last-child{margin-bottom:0}
.news-thumb{border-radius:14px;overflow:hidden;margin-bottom:12px;border:1px solid var(--line)}
.news-thumb img{width:100%;aspect-ratio:16/7;object-fit:cover}
.news-list-wrap{display:grid;gap:20px}
/* ---------- faq ---------- */
.faq-item{
  background:#fff;border:1.5px solid #d1fae5;border-left:5px solid #34d399;
  border-radius:16px;padding:20px 22px;box-shadow:0 8px 20px rgba(6,95,70,.05);
}
.faq-item:nth-child(even){border-left-color:var(--violet)}
.faq-q{font-weight:800;color:var(--deep);margin:0 0 10px;font-size:16px;line-height:1.6}
.faq-a{margin:0;font-size:14.5px;color:var(--muted)}
/* ---------- story / download ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.split-art{border-radius:24px;overflow:hidden;border:1.5px solid #a7f3d0;box-shadow:0 16px 36px rgba(6,95,70,.12);background:#fff}
.split-art img{width:100%;aspect-ratio:16/10;object-fit:cover}
.checklist{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}
.checklist li{position:relative;padding-left:26px;font-size:14.5px;color:#1f4038}
.checklist li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--violet);font-weight:800;
}
/* ---------- cta ---------- */
#cta .cta-box{
  background:linear-gradient(135deg,#065f46 0%,#0b7c5c 45%,#7e22ce 100%);
  border-radius:26px;padding:44px 34px;text-align:center;color:#fff;
  box-shadow:0 22px 48px rgba(6,95,70,.28);position:relative;overflow:hidden;
}
#cta .cta-box::before{
  content:"";position:absolute;width:260px;height:260px;border-radius:50%;
  left:-90px;top:-110px;background:radial-gradient(circle,rgba(167,243,208,.45),rgba(167,243,208,0));
}
#cta .cta-box::after{
  content:"";position:absolute;width:240px;height:240px;border-radius:50%;
  right:-80px;bottom:-110px;background:radial-gradient(circle,rgba(233,213,255,.42),rgba(233,213,255,0));
}
#cta h2{color:#fff;position:relative}
#cta p{color:#e9fff6;max-width:640px;margin:0 auto 22px;position:relative;font-size:15px}
#cta .btn-row{justify-content:center;position:relative}
#cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
#cta .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
/* ---------- footer ---------- */
footer.site-footer{
  background:linear-gradient(180deg,#064e3b,#053b2c);color:#d1fae5;
  padding:44px 0 24px;margin-top:20px;font-size:14px;
}
footer.site-footer a{color:#a7f3d0}
footer.site-footer a:hover{color:#e9d5ff}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:28px}
.foot-title{color:#fff;font-weight:800;margin-bottom:10px;font-size:15px;letter-spacing:.5px}
.foot-list{list-style:none;margin:0;padding:0;display:grid;gap:8px;font-size:13.5px;color:#b9e9d6}
.foot-bottom{
  margin-top:28px;padding-top:18px;border-top:1px solid rgba(167,243,208,.22);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#a7d9c6;
}
@media (max-width:820px){
  .hero-grid,.split,.review-split{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  section{padding:42px 0}
  .brand small{display:none}
}