:root{
      --green:#079765;
      --green-dark:#045f44;
      --soft:#eefaf5;
      --soft-2:#f7fcf9;
      --ink:#10211b;
      --muted:#62736c;
      --line:#dcebe5;
      --white:#fff;
      --shadow:0 26px 70px rgba(7,151,101,.14);
      --radius:8px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;letter-spacing:0}
    a{text-decoration:none;color:inherit}
    img{display:block;max-width:100%}
    .shell{width:min(1240px,calc(100% - 48px));margin-inline:auto}
    .site-header{height:68px;position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
    .nav-wrap{height:100%;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:9px;white-space:nowrap}
    .brand i{font-size:27px;color:var(--green)}
    .brand strong{font-size:21px}
    .main-nav{height:100%;display:flex;align-items:stretch;justify-content:center;gap:28px;flex:1}
    .main-nav a{display:flex;align-items:center;font-size:14px;position:relative}
    .main-nav a::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--green);transition:.22s}
    .main-nav a:hover::after,.main-nav a.active::after{left:0;right:0}
    .nav-actions{display:flex;align-items:center;gap:20px;font-size:14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border-radius:6px;font-weight:700;transition:.22s}
    .btn-primary{background:var(--green);color:#fff;box-shadow:0 16px 32px rgba(7,151,101,.22)}
    .btn-primary:hover{transform:translateY(-2px);background:#058558}
    .btn-ghost{border:1px solid rgba(255,255,255,.56);color:#fff;background:rgba(255,255,255,.08)}
    .btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
    .hero .btn-primary{background:#fff;color:var(--green);box-shadow:0 18px 42px rgba(0,0,0,.18)}
    .hero .btn-primary:hover{background:#f2fff8;color:#05794f}

    .hero{background:url("../img/news/zndk.png") no-repeat;    background-size: cover;color:#fff;min-height:538px;display:flex;align-items:center;overflow:hidden}
    .hero-inner{display:flex;align-items:center;gap:56px;padding:72px 0}
    .hero-copy{flex:0 0 43%;position:relative;z-index:1}
    .hero-copy .kicker{font-weight:700;font-size:15px;margin-bottom:26px;color:#c7f8e5}
    .hero h1{font-size:58px;line-height:1.12;margin:0 0 28px;font-weight:800}
    .hero p{font-size:18px;line-height:1.9;margin:0;color:rgba(255,255,255,.88)}
    .hero-actions{display:flex;gap:14px;margin-top:56px;flex-wrap:wrap}
    .hero-visual{flex:1;min-width:0}
    .video-card{position:relative;aspect-ratio:1600/880;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,.32);box-shadow:0 34px 80px rgba(0,0,0,.22);background:rgba(255,255,255,.12)}
    .video-card img{width:100%;height:100%;object-fit:cover;opacity:.46;filter:saturate(.95)}
    .video-card::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,151,101,.45),rgba(7,151,101,.08))}
    .play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:78px;height:78px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--green);box-shadow:0 20px 50px rgba(0,0,0,.26);font-size:32px}
    .video-size{position:absolute;right:24px;bottom:22px;color:rgba(255,255,255,.75);font-weight:700}

    .fact-strip{background:#fff;border-bottom:1px solid var(--line)}
    .fact-row{display:flex;min-height:112px;align-items:center}
    .fact{flex:1;display:flex;align-items:center;gap:16px;padding:0 24px;border-right:1px solid var(--line)}
    .fact:last-child{border-right:0}
    .fact-icon{width:48px;height:48px;border-radius:8px;border:1px solid #cfe8de;background:#f3fbf7;display:grid;place-items:center;color:var(--green);font-size:24px}
    .fact b{display:block;font-size:18px;margin-bottom:4px}
    .fact span{color:var(--muted)}

    .section{padding:110px 0;background:#fff}
    .section.alt{background:var(--soft-2)}
    .section-head{text-align:center;margin:0 auto 56px;max-width:780px}
    .section-head h2{font-size:40px;line-height:1.25;margin:0 0 16px;font-weight:800}
    .section-head p{font-size:16px;line-height:1.8;color:var(--muted);margin:0}
    .feature-block{display:flex;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.22s}
    .feature-block:hover{transform:translateY(-4px);box-shadow:0 34px 90px rgba(7,151,101,.18)}
    .feature-media{flex:0 0 52%;min-height:480px;background:#edf7f4;position:relative;overflow:hidden}
    .feature-media img{width:100%;height:100%;object-fit:cover}
    .placeholder-label{position:absolute;left:34px;bottom:32px;color:#fff;background:rgba(4,95,68,.8);font-weight:700;border-radius:6px;padding:10px 14px}
    .feature-copy{flex:1;padding:44px 48px;display:flex;flex-direction:column;justify-content:center}
    .feature-copy h3{font-size:36px;line-height:1.32;margin:0 0 24px;font-weight:800}
    .feature-copy p{font-size:17px;line-height:1.9;color:var(--muted);margin:0 0 42px}
    .check-list{display:flex;flex-direction:column;gap:18px}
    .check-list span{display:flex;align-items:center;gap:12px;color:#385049;font-size:16px}
    .check-list i{width:21px;height:21px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-size:13px}

    .control-panel{display:flex;gap:28px;align-items:stretch}
    .control-copy{flex:0 0 36%;background:var(--green);color:#fff;border-radius:var(--radius);padding:42px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:var(--shadow);transition:.22s}
    .control-copy:hover{transform:translateY(-4px)}
    .control-copy h2{font-size:38px;line-height:1.28;margin:0 0 18px}
    .control-copy p{line-height:1.9;color:rgba(255,255,255,.84);margin:0}
    .control-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px}
    .control-tags span{padding:9px 12px;border:1px solid rgba(255,255,255,.32);border-radius:6px;background:rgba(255,255,255,.1);font-weight:700}
    .control-board{flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
    .zone-grid{display:flex;flex-wrap:wrap;gap:16px}
    .zone-card{flex:1 1 calc(50% - 16px);min-height:166px;border-radius:var(--radius);background:var(--soft);padding:24px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid #d8ede5;transition:.22s}
    .zone-card:hover{background:#fff;transform:translateY(-3px);box-shadow:0 18px 42px rgba(7,151,101,.12)}
    .zone-card b{font-size:20px}
    .zone-card p{color:var(--muted);line-height:1.7;margin:12px 0 0}
    .status{display:flex;align-items:center;gap:10px;color:var(--green);font-weight:800}
    .status i{width:14px;height:14px;background:var(--green);border-radius:50%;box-shadow:0 0 0 6px rgba(7,151,101,.12)}

    .scenario-section{background:#fff}
    .scenario-layout{display:flex;gap:18px;align-items:stretch}
    .scenario-main,.scenario-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:210px;color:#fff;box-shadow:0 18px 46px rgba(12,47,37,.16);transition:.24s}
    .scenario-main:hover,.scenario-card:hover{transform:translateY(-4px);box-shadow:0 26px 70px rgba(12,47,37,.24)}
    .scenario-main{flex:0 0 40%;min-height:438px}
    .scenario-side{flex:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
    .scenario-main img,.scenario-card img{width:100%;height:100%;object-fit:cover}
    .scenario-main::after,.scenario-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,29,24,.08),rgba(4,29,24,.78))}
    .scenario-text{position:absolute;left:32px;right:28px;bottom:28px;z-index:1}
    .scenario-text h3{font-size:30px;margin:0 0 14px}
    .scenario-card .scenario-text h3{font-size:24px}
    .scenario-text p{margin:0;color:rgba(255,255,255,.84);line-height:1.8}

    .cta{background:var(--green);color:#fff;padding:42px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}
    .cta h2{font-size:32px;margin:0 0 10px}
    .cta p{margin:0;color:rgba(255,255,255,.84)}
    .cta-actions{display:flex;gap:14px;flex-wrap:wrap}
    .cta .btn-primary{background:#fff;color:var(--green)}

    .footer{background:#0b2018;color:#fff;padding:54px 0 28px}
    .footer-grid{display:flex;gap:54px;align-items:flex-start}
    .footer-brand{flex:1.5}
    .footer b{display:block;margin-bottom:14px}
    .footer a,.footer p,.footer span{display:block;color:rgba(255,255,255,.64);font-size:14px;line-height:2}
    .footer-bottom{display:flex;justify-content:space-between;gap:24px;border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:22px}

    @media (max-width:980px){
      .main-nav{display:none}
      .hero-inner,.feature-block,.control-panel,.scenario-layout,.cta-inner,.footer-grid{flex-direction:column}
      .hero-copy{flex:auto}
      .hero h1{font-size:44px}
      .hero{min-height:auto}
      .fact-row{flex-wrap:wrap}
      .fact{flex:1 1 50%;border-bottom:1px solid var(--line)}
      .feature-media{flex:auto;min-height:340px}
      .scenario-main{flex:auto;min-height:360px}
      .scenario-side{display:flex;flex-wrap:wrap}
    }
    @media (max-width:640px){
      .shell{width:min(100% - 28px,1240px)}
      .site-header{height:60px}
      .nav-actions a:first-child{display:none}
      .hero-inner{padding:48px 0}
      .hero h1{font-size:36px}
      .hero p,.feature-copy p{font-size:15px}
      .hero-actions{margin-top:36px}
      .fact{flex:1 1 100%;padding:18px 0;border-right:0}
      .section{padding:72px 0}
      .section-head h2,.control-copy h2{font-size:30px}
      .feature-copy,.control-copy,.control-board{padding:28px}
      .feature-copy h3{font-size:28px}
      .feature-media{min-height:260px}
      .zone-card,.scenario-card{flex:1 1 100%}
      .footer-bottom{flex-direction:column}
    }