@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;700;900&display=swap');

:root{
  --green:#2ba35e; --green-d:#1f8a4d; --green-l:#46bd78; --green-tint:#e9f6ee; --green-tint2:#f3faf6;
  --ink:#1d2b23; --ink2:#3a4a40; --gray:#6b7a72; --gray-l:#9aa6a0;
  --line:#e4efe8; --bg:#fff; --shadow:0 20px 55px -22px rgba(28,90,55,.28); --shadow-sm:0 10px 28px -14px rgba(28,90,55,.2);
  --radius:16px; --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.green{color:var(--green)} .up{color:var(--green)} .warn{color:#e08a3c}
small{font-size:.62em;font-weight:600;color:inherit}

/* header */
.hdr{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);transition:box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}
.hdr.scrolled{box-shadow:0 6px 22px -16px rgba(0,0,0,.25);border-bottom-color:var(--line)}
.hdr-inner{display:flex;align-items:center;gap:40px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.brand-logo{width:32px;height:32px}
.hdr-nav{display:flex;gap:28px;margin-left:6px}
.hdr-nav a{color:var(--ink2);font-size:15px;font-weight:500;position:relative;padding:4px 0}
.hdr-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--green);transition:width .25s}
.hdr-nav a:hover{color:var(--green)} .hdr-nav a:hover::after{width:100%}
.hdr-login{margin-left:auto;font-size:15px;font-weight:600;color:var(--ink2)}
.hdr-login:hover{color:var(--green)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:700;cursor:pointer;border:none;transition:transform .15s,box-shadow .25s,background .25s}
.btn-primary{background:var(--green);color:#fff;padding:13px 34px;border-radius:10px;font-size:16px;box-shadow:0 12px 26px -12px rgba(43,163,94,.6)}
.btn-primary:hover{background:var(--green-d);transform:translateY(-2px)}
.btn-primary.lg{padding:16px 44px;border-radius:30px;font-size:17px}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--green-d);padding:13px 34px;border-radius:10px;font-size:16px;border:1.5px solid var(--green-l)}
.btn-ghost:hover{background:#fff;transform:translateY(-2px)}

/* hero */
.hero{position:relative;overflow:hidden;padding:60px 0 70px}
.hero-bg{position:absolute;inset:0;z-index:-2;background:url("assets/mountain-scene.svg") center/cover no-repeat}
.hero-overlay{position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(243,250,246,.96) 0%,rgba(243,250,246,.7) 38%,rgba(243,250,246,.15) 60%,rgba(243,250,246,0) 100%)}
.hero-grid{display:grid;grid-template-columns:0.78fr 1.22fr;gap:42px;align-items:center}
.hero-title{font-size:46px;font-weight:900;letter-spacing:1px;color:var(--ink)}
.hero-tagline{margin-top:14px;font-size:18px;font-weight:700;color:var(--green-d)}
.hero-desc{margin-top:16px;font-size:15px;color:var(--ink2);line-height:1.9}
.hero-actions{display:flex;gap:16px;margin-top:30px}
.hero-pills{list-style:none;display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}
.hero-pills li{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:30px;padding:7px 15px;font-size:13px;font-weight:600;color:var(--ink2);box-shadow:var(--shadow-sm)}
.pill-ic{font-size:14px}

/* hero dashboard */
.hero-dash{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 70px -26px rgba(28,80,50,.4);backdrop-filter:blur(6px);overflow:hidden}
.hd-top{display:flex;justify-content:flex-end;gap:14px;padding:8px 16px;font-size:11px;color:var(--gray);border-bottom:1px solid var(--line)}
.hd-body{display:flex}
.hd-side{width:62px;flex-shrink:0;border-right:1px solid var(--line);padding:10px 0}
.hd-side ul{list-style:none;display:flex;flex-direction:column;gap:3px}
.hd-side li{font-size:11px;color:var(--gray);padding:7px 0;text-align:center;border-radius:7px;margin:0 6px}
.hd-side li.on{background:var(--green-tint);color:var(--green-d);font-weight:700}
.hd-main{flex:1;padding:12px;display:flex;flex-direction:column;gap:9px;min-width:0}
.hd-kpis{display:grid;grid-template-columns:1fr 1fr 1.2fr;gap:8px}
.hd-kpi{background:var(--green-tint2);border:1px solid var(--line);border-radius:10px;padding:9px 11px}
.hd-kpi em{font-size:10px;color:var(--gray);font-style:normal}
.hd-kpi b{display:block;font-size:17px;font-weight:800;margin:2px 0}
.hd-kpi span{font-size:9px}
.hd-kpi.ring{display:flex;align-items:center;justify-content:space-between}
.mini-ring{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:9px;color:var(--green-d);font-weight:700;background:conic-gradient(var(--green) calc(var(--p)*1%),#dcefe2 0)}
.mini-ring::after{content:"";position:absolute;width:26px;height:26px;background:var(--green-tint2);border-radius:50%}
.mini-ring{position:relative} .mini-ring{z-index:0}
.hd-cols{display:flex;gap:8px}
.hd-card{flex:1;background:#fff;border:1px solid var(--line);border-radius:10px;padding:9px 11px;min-width:0}
.hd-ct{font-size:10px;color:var(--gray);font-weight:600;display:block;margin-bottom:6px}
.hd-map{position:relative;height:78px;background:radial-gradient(circle at 50% 50%,#eaf6ee,#dcefe2);border-radius:8px}
.hd-map i{position:absolute;width:9px;height:9px;background:var(--green);border-radius:50%;box-shadow:0 0 0 4px rgba(43,163,94,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(43,163,94,.25)}50%{box-shadow:0 0 0 7px rgba(43,163,94,.05)}}
.top5 p{font-size:10px;display:flex;justify-content:space-between;color:var(--ink2);margin:3px 0}
.hd-line{width:100%;height:48px}
.alerts p,.alert-col p{font-size:9.5px;display:flex;align-items:center;gap:5px;color:var(--ink2);margin:4px 0}
.alerts small{margin-left:auto;color:var(--gray-l)}
.a-r,.a-o,.a-y{width:6px;height:6px;border-radius:50%;flex-shrink:0}
.a-r{background:#e2574c}.a-o{background:#e8923c}.a-y{background:#e8b53d}

/* sections */
.section{padding:62px 0}
.section-tint{background:linear-gradient(180deg,var(--green-tint2),#fff)}
.sec-title{text-align:center;font-size:30px;font-weight:800;margin-bottom:42px}
.sec-title::after{content:"";display:block;width:42px;height:3px;border-radius:2px;background:var(--green);margin:14px auto 0}

/* capability */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cap{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .25s,box-shadow .25s,border-color .25s}
.cap:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cde7d6}
.cap-ic{width:50px;height:50px;border-radius:13px;background:var(--green-tint);display:grid;place-items:center;font-size:24px;flex-shrink:0}
.cap h3{font-size:17px;font-weight:700;margin-bottom:8px}
.cap p{font-size:13.5px;color:var(--gray);line-height:1.8}

/* hub */
.hub{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow-sm)}
.hub-title{font-size:21px;font-weight:800;margin-bottom:22px}
.hub-title small{font-size:13px;color:var(--gray);font-weight:500}
.hub-kpis{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.hk{background:var(--green-tint2);border:1px solid var(--line);border-radius:14px;padding:15px 17px}
.hk em{font-size:12px;color:var(--gray);font-style:normal}
.hk b{display:block;font-size:22px;font-weight:800;margin:5px 0}
.hk i{font-size:11px;font-style:normal}
.hk.park{grid-column:5;grid-row:1}
.hk-bar{height:6px;background:#dcefe2;border-radius:4px;margin-top:8px;overflow:hidden}
.hk-bar span{display:block;height:100%;background:var(--green);border-radius:4px}
.hk.alert-col{grid-column:6;grid-row:1/3}
.alert-col p{font-size:11px;margin:8px 0;display:flex;align-items:center;gap:5px}
.alert-col small{margin-left:auto;color:var(--gray-l)}
.hk.heat{grid-column:1/2;grid-row:2}
.heatmap{height:120px;border-radius:10px;margin-top:8px;background:#eef6f0;position:relative;overflow:hidden}
.heat-scale{display:flex;align-items:center;gap:6px;margin-top:6px;font-size:10px;color:var(--gray)}
.heat-scale i{flex:1;height:6px;border-radius:3px;background:linear-gradient(90deg,#1f8a4d,#9ed8b1,#eef6f0)}
.hk.rev{grid-column:2/5;grid-row:2}
.rev-chart{width:100%;height:130px}
.hk.dev{grid-column:5;grid-row:2}
.hk.dev p{font-size:13px;margin:6px 0;display:flex;justify-content:space-between}
.hk.dev b{display:inline;font-size:16px}
.more{color:var(--green);font-size:12px;font-weight:600;display:inline-block;margin-top:8px}

/* flow */
.flow-grid{display:flex;align-items:center;justify-content:center;gap:10px}
.flow{flex:1;max-width:230px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 20px;text-align:center;transition:transform .25s,box-shadow .25s}
.flow:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm)}
.flow-ic{width:54px;height:54px;border-radius:50%;background:var(--green-tint);display:grid;place-items:center;font-size:26px;margin:0 auto 14px}
.flow h3{font-size:17px;font-weight:700;margin-bottom:8px}
.flow p{font-size:13px;color:var(--gray);line-height:1.7}
.flow-arrow{color:var(--green-l);font-size:24px;font-weight:700;flex-shrink:0}

/* two-col panels */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.panel{background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-sm)}
.panel-title{font-size:20px;font-weight:800;margin-bottom:22px;padding-left:13px;position:relative}
.panel-title small{font-size:13px;color:var(--gray);font-weight:500}
.panel-title::before{content:"";position:absolute;left:0;top:3px;width:5px;height:19px;border-radius:3px;background:var(--green)}
.dev-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.dev{text-align:center}
.dev-ic{width:52px;height:52px;border-radius:14px;background:var(--green-tint);display:grid;place-items:center;font-size:24px;margin:0 auto 8px;box-shadow:var(--shadow-sm)}
.dev span:last-child{font-size:12px;color:var(--ink2)}
.dev-hub{margin-top:24px;display:flex;align-items:center;justify-content:center;gap:8px;background:var(--green-tint);border:1px dashed var(--green-l);border-radius:30px;padding:10px;font-size:13px;font-weight:700;color:var(--green-d)}
.ana-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ana{background:var(--green-tint2);border:1px solid var(--line);border-radius:12px;padding:14px;text-align:center}
.ana em{font-size:12px;color:var(--gray);font-style:normal}
.ana b{display:block;font-size:24px;font-weight:800;margin-top:6px}
.ana-sub{margin:20px 0 12px;font-size:13px;font-weight:700;color:var(--ink2)}
.scene-row{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}
.scene-row figure{border-radius:12px;overflow:hidden;border:1px solid var(--line);position:relative}
.scene-row img{width:100%;height:66px;object-fit:cover}
.scene-row figcaption{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(20,50,32,.7));color:#fff;font-size:11px;text-align:center;padding:12px 4px 5px}

/* cta */
.cta{position:relative;overflow:hidden;padding:64px 0;text-align:center}
.cta-bg{position:absolute;inset:0;z-index:-1;background:url("assets/mountain-scene.svg") center/cover no-repeat}
.cta-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(243,250,246,.85),rgba(243,250,246,.9))}
.cta h2{font-size:30px;font-weight:800;color:var(--ink)}
.cta p{margin:14px 0 28px;font-size:16px;color:var(--ink2)}

/* footer */
.ftr{background:#15251c;color:#9fb0a6;padding:22px 0;text-align:center;font-size:13px}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s,transform .6s}
.reveal.in{opacity:1;transform:none}

@media(max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:34px}.hero-title{font-size:38px}
  .cap-grid{grid-template-columns:1fr 1fr}
  .hub-kpis{grid-template-columns:1fr 1fr}.hk.alert-col,.hk.heat,.hk.rev,.hk.dev,.hk.park{grid-column:auto;grid-row:auto}
  .two-col{grid-template-columns:1fr}.flow-grid{flex-wrap:wrap}.flow-arrow{display:none}
  .hdr-nav{display:none}.scene-row{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:560px){
  .container{padding:0 18px}.hero-title{font-size:30px}
  .cap-grid,.ana-grid,.dev-grid,.hd-kpis{grid-template-columns:1fr 1fr}
  .hero-dash{display:none}
}