:root{
  --ink:#14231f;
  --muted:#66736f;
  --green:#1c5c48;
  --green-2:#2c7b60;
  --green-soft:#e7f1ed;
  --mint:#b7d8c7;
  --orange:#f2a23a;
  --orange-soft:#fff0d9;
  --paper:#f7faf8;
  --white:#ffffff;
  --line:#dce7e1;
  --shadow:0 24px 70px rgba(20,52,40,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--white);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
.wrap{width:min(1120px,calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,231,225,.8)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:21px;letter-spacing:-.02em}
.brand small{font-weight:500;font-size:13px;color:var(--muted);margin-left:5px;letter-spacing:.04em}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:var(--green);box-shadow:0 8px 22px rgba(28,92,72,.22)}
.brand-mark svg{width:24px;height:24px;fill:#fff}
.brand-mark.small{width:32px;height:32px;border-radius:10px}
.brand-mark.small svg{width:19px;height:19px}
.nav-links{display:flex;align-items:center;gap:30px;font-size:14px;color:#3b4b46}
.nav-links a:hover{color:var(--green)}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;border-radius:99px;background:var(--green);color:#fff;font-size:14px;font-weight:600;box-shadow:0 10px 25px rgba(28,92,72,.18);transition:.2s}
.nav-cta:hover{transform:translateY(-1px);background:var(--green-2)}
.hero{position:relative;overflow:hidden;padding:78px 0 92px;background:
  radial-gradient(760px 420px at 88% 8%,rgba(183,216,199,.55),transparent 65%),
  radial-gradient(680px 360px at 8% 95%,rgba(255,233,196,.65),transparent 62%),
  linear-gradient(180deg,#fbfdfc 0%,#f3f9f5 100%);
}
.hero::after{content:"";position:absolute;inset:auto 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:64px;align-items:center;position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.09em;color:var(--green);text-transform:uppercase;background:rgba(231,241,237,.8);border:1px solid #d8e8df;padding:7px 12px;border-radius:99px}
.dot{width:7px;height:7px;background:#3b9b70;border-radius:50%;box-shadow:0 0 0 4px rgba(59,155,112,.13)}
.hero h1{font-size:clamp(48px,5.7vw,76px);line-height:1.04;letter-spacing:-.055em;margin:22px 0 24px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--green);position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:2%;right:2%;bottom:5px;height:11px;background:linear-gradient(90deg,rgba(242,162,58,.35),rgba(242,162,58,.08));z-index:-1;border-radius:6px}
.lead{font-size:17px;color:#53635d;max-width:540px;margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 22px;border-radius:14px;font-size:15px;font-weight:700;transition:.2s;border:1px solid transparent;font-family:inherit;cursor:pointer}
.btn.primary{background:var(--green);color:#fff;box-shadow:0 14px 30px rgba(28,92,72,.22)}
.btn.primary:hover{background:var(--green-2);transform:translateY(-2px)}
.btn.primary span{font-size:18px;line-height:1}
.btn.ghost{background:rgba(255,255,255,.7);border-color:var(--line);color:var(--ink)}
.btn.ghost:hover{background:#fff;border-color:#b9cec4}
.btn.large{height:56px;padding:0 26px}
.trust{display:flex;flex-wrap:wrap;gap:8px 20px;padding:0;margin:0;list-style:none;color:#72817b;font-size:13px}
.trust li{display:flex;align-items:center;gap:7px}
.trust li::before{content:"";width:5px;height:5px;border-radius:50%;background:#8db5a2}
.hero-visual{position:relative;min-height:430px;display:grid;place-items:center}
.visual-window{width:100%;max-width:520px;background:#fff;border:1px solid #dce8e2;border-radius:24px;box-shadow:var(--shadow);overflow:hidden;transform:rotate(-1.3deg)}
.window-bar{display:flex;align-items:center;gap:6px;height:42px;padding:0 14px;background:#f8fbf9;border-bottom:1px solid #e5eee9;color:#7b8b84;font-size:12px}
.window-bar i{width:9px;height:9px;border-radius:50%;background:#d7e4dc}
.window-bar i:nth-child(1){background:#f4b6ad}.window-bar i:nth-child(2){background:#f4d39d}.window-bar i:nth-child(3){background:#b9d9c6}
.window-bar span{margin-left:10px}
.visual-body{display:grid;grid-template-columns:48px 1fr 118px;min-height:300px}
.visual-rail{background:#f7faf8;border-right:1px solid #e8f0ec;display:flex;flex-direction:column;align-items:center;gap:12px;padding:16px 0}
.visual-rail b{width:20px;height:20px;border-radius:7px;background:#e4eee8}
.visual-rail b:first-child{background:var(--green);opacity:.85}
.visual-canvas{position:relative;overflow:hidden;background:
  linear-gradient(90deg,rgba(220,231,225,.55) 1px,transparent 1px),
  linear-gradient(rgba(220,231,225,.55) 1px,transparent 1px),#fbfdfc;
  background-size:28px 28px;
}
.art-card{position:absolute;border-radius:20px;box-shadow:0 12px 30px rgba(20,52,40,.1)}
.art-card.orange{width:150px;height:168px;background:linear-gradient(150deg,#ffd18b,#f29a2f);right:36px;top:44px;border-radius:24px 24px 34px 24px}
.art-card.green{width:118px;height:112px;background:linear-gradient(140deg,#8fd1a9,#2e8a65);left:34px;bottom:36px;transform:rotate(-9deg);border-radius:28px 18px 30px 18px}
.art-card.white{width:96px;height:82px;background:#fff;border:1px solid #e0ece5;right:108px;bottom:46px;transform:rotate(8deg);border-radius:18px}
.node-path{position:absolute;inset:0;width:100%;height:100%;color:#2b7a5d;opacity:.75}
.node-path circle{fill:#fff;stroke:#2b7a5d;stroke-width:2.5}
.visual-panel{border-left:1px solid #e8f0ec;background:#fbfdfc;padding:16px 12px}
.panel-title{font-size:11px;font-weight:800;letter-spacing:.08em;color:#4a665b}
.panel-row{display:flex;gap:6px;margin:16px 0}
.panel-row i{height:8px;border-radius:9px;background:#dcebe4;flex:1}
.panel-row i:nth-child(2){background:#f6d7aa}
.panel-line{height:7px;border-radius:9px;background:#e5efe9;margin:10px 0}
.panel-line.short{width:70%}
.panel-chip{display:inline-block;margin-top:14px;padding:5px 8px;border-radius:8px;background:#e7f1ed;color:#2b6e57;font-size:10px;font-weight:700}
.panel-button{height:28px;border-radius:9px;background:var(--green);margin-top:16px;opacity:.9}
.float-card{position:absolute;background:#fff;border:1px solid #deebe4;border-radius:16px;box-shadow:0 16px 40px rgba(20,52,40,.14);padding:12px 14px;font-size:12px;line-height:1.35}
.float-card b{display:block;font-size:13px}
.float-card small{color:#7c8b85;font-size:11px}
.float-card span{display:grid;place-items:center;width:26px;height:26px;border-radius:9px;background:var(--orange-soft);color:#b96f14;font-weight:800;font-size:11px;margin-bottom:7px}
.float-a{right:-8px;top:22px;transform:rotate(2deg)}
.float-b{left:-10px;bottom:26px;transform:rotate(-2deg)}
.float-b b{color:var(--green)}
.section{padding:96px 0}
.section.soft{background:var(--paper)}
.section-head{max-width:620px;margin-bottom:42px}
.section-head.compact{margin-bottom:34px}
.kicker{display:inline-block;font-size:11px;letter-spacing:.14em;font-weight:800;color:#5f8e78;margin-bottom:12px}
.section h2{font-size:clamp(32px,4vw,46px);line-height:1.12;letter-spacing:-.04em;margin:0 0 14px}
.section-head p{color:var(--muted);font-size:16px;margin:0}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s;position:relative;overflow:hidden}
.feature::after{content:"";position:absolute;width:180px;height:180px;right:-90px;top:-100px;border-radius:50%;background:radial-gradient(circle,rgba(183,216,199,.45),transparent 70%);opacity:0;transition:.25s}
.feature:hover{transform:translateY(-4px);box-shadow:0 22px 45px rgba(20,52,40,.08);border-color:#c8dcd2}
.feature:hover::after{opacity:1}
.feature-icon{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--green-soft);color:var(--green);font-size:22px;font-weight:800;margin-bottom:22px}
.feature h3{font-size:20px;letter-spacing:-.02em;margin:0 0 8px}
.feature p{color:var(--muted);font-size:14.5px;margin:0 0 16px}
.feature-tag{display:inline-block;font-size:11px;font-weight:700;color:#4e7c66;background:#f0f7f3;padding:5px 9px;border-radius:7px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{padding:26px 22px;border-radius:18px;background:#fff;border:1px solid #dce9e2}
.step span{display:inline-block;font-size:12px;font-weight:800;color:var(--green);letter-spacing:.1em;margin-bottom:18px}
.step h3{font-size:17px;margin:0 0 5px}
.step p{font-size:13.5px;color:var(--muted);margin:0}
.download-card{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;background:
  radial-gradient(500px 260px at 10% 0%,rgba(183,216,199,.55),transparent 70%),
  linear-gradient(135deg,#f5fbf7,#eef7f1);
  border:1px solid #d5e7dd;border-radius:30px;padding:48px}
.download-card h2{margin-bottom:12px}
.download-card p{color:#56675f;margin:0 0 22px;max-width:560px}
.contact-row{display:flex;flex-wrap:wrap;gap:10px}
.contact-pill{display:inline-flex;align-items:center;gap:5px;background:#fff;border:1px solid #d9e8df;border-radius:10px;padding:9px 13px;font-size:13px;color:#53655d}
.contact-pill b{color:var(--green)}
.contact-pill.link{color:var(--green);font-weight:600}
.contact-pill.copy{color:var(--green);font-weight:700;font-family:inherit;cursor:pointer}
.contact-pill.copy:hover{background:var(--green-soft)}
.site-footer p a{display:inline;color:#f1c27d}
.site-footer p a:hover{color:#fff}
.download-side{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.download-side small{color:#71827a;font-size:12px}
.faq{background:#fff}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 36px}
.faq-grid h3{font-size:16px;margin:0 0 5px}
.faq-grid p{font-size:14px;color:var(--muted);margin:0 0 18px}
.site-footer{background:#112b21;color:#dcebe4;padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr 1.1fr;gap:36px}
.footer-brand{color:#fff;margin-bottom:16px}
.footer-brand small{color:#9dbbb0}
.site-footer h4{font-size:13px;letter-spacing:.08em;color:#fff;margin:0 0 14px}
.site-footer a{display:block;font-size:13px;color:#b9cfc6;margin-bottom:9px}
.site-footer a:hover{color:#fff}
.muted{color:#8da99e}
.small{font-size:12px;line-height:1.9}
.placeholder{color:#f1c27d}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:20px;font-size:12px;color:#8da99e}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:46px}
  .hero-visual{min-height:380px}
  .feature-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .download-card{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .wrap{width:min(100% - 32px,1120px)}
  .nav{height:64px}
  .nav-links{display:none}
  .nav-cta{height:36px;padding:0 14px;font-size:12px}
  .hero{padding:52px 0 64px}
  .hero h1{font-size:46px}
  .lead{font-size:15px}
  .hero-visual{min-height:320px}
  .visual-body{grid-template-columns:38px 1fr 0}
  .visual-panel{display:none}
  .float-a{right:-2px}.float-b{left:-2px}
  .feature-grid,.steps,.faq-grid,.footer-grid{grid-template-columns:1fr}
  .section{padding:68px 0}
  .download-card{padding:28px 22px;border-radius:22px}
  .footer-bottom{flex-direction:column;gap:4px}
}