:root{
      --bg:#f5faf6;
      --bg2:#edf9f1;
      --card:#ffffff;
      --text:#173022;
      --muted:#5b6e62;
      --line:#d8e8dc;
      --green:#14c36f;
      --green2:#0ea65b;
      --shadow:0 16px 40px rgba(15, 77, 41, .08);
      --radius:20px;
      --container:1180px;
    }
    *{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;background:radial-gradient(circle at top left, #effef3 0, #f7fbf8 36%, #f4f8f5 100%);color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:30;background:rgba(245,250,246,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(216,232,220,.8)}
    .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:40px;height:40px;object-fit:contain}
    .brand strong{display:block;font-size:18px;line-height:1.2}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--text);border-radius:12px;padding:10px 12px}
    .nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav a{font-size:14px;color:#2b4436;opacity:.9}
    .nav .home-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:11px 16px;border:1px solid transparent;font-weight:700;transition:.25s ease}
    .nav .home-btn,.btn-primary{background:linear-gradient(135deg,var(--green),#30d87f);color:#fff;box-shadow:0 12px 24px rgba(20,195,111,.22)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .nav a:hover,.nav .home-btn:hover,.btn:hover{transform:translateY(-2px)}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.panel,.card,.faq-item,.quote,.article,.price-box,.compare{background:linear-gradient(180deg,#fff, #fafffc);border:1px solid rgba(216,232,220,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before{content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle, rgba(20,195,111,.18), transparent 65%)}
    .badge{display:inline-flex;align-items:center;gap:8px;background:#e8fbef;color:#117645;border:1px solid #c7efd7;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
    h1{margin:14px 0 12px;font-size:clamp(30px,4vw,50px);line-height:1.15;letter-spacing:-.02em}
    .hero p{margin:0 0 18px;color:var(--muted);font-size:16px;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 22px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px}
    .point{padding:14px;border-radius:16px;background:#f7fcf8;border:1px solid #e0eee3}
    .point strong{display:block;font-size:18px}
    .point span{font-size:13px;color:var(--muted)}
    .hero-side{padding:20px;display:grid;gap:14px}
    .hero-stat{padding:18px;border-radius:18px;background:linear-gradient(180deg,#f4fff7,#eefcf2);border:1px solid #d9f0e0}
    .hero-stat strong{display:block;font-size:28px;color:#0e8d4d;line-height:1.1}
    .hero-stat span{display:block;color:var(--muted);font-size:13px;margin-top:6px}
    .quick-tags{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#315041}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:26px}
    .section-head p{margin:0;color:var(--muted)}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:18px}
    .card h3{margin:0 0 8px;font-size:18px}
    .card p,.card li{color:var(--muted)}
    .card ul{margin:0;padding-left:18px}
    .metric{padding:20px}
    .metric strong{display:block;font-size:28px;color:var(--green2)}
    .metric span{color:var(--muted);font-size:13px}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line);position:relative}
    .step:after{content:"";position:absolute;top:18px;right:18px;width:34px;height:34px;border-radius:50%;background:#eaf9ef}
    .step strong{display:block;font-size:18px;margin-bottom:8px}
    .table-wrap{overflow-x:auto;border-radius:18px}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:top}
    th{background:#f3fbf5;color:#244132}
    .good{color:#118c4a;font-weight:700}
    .compare-top{display:grid;grid-template-columns:1fr .95fr;gap:16px}
    .score-box{padding:22px;background:linear-gradient(145deg,#eefff4,#ffffff)}
    .score{font-size:44px;line-height:1;color:var(--green2);font-weight:800}
    .score small{font-size:16px;color:var(--muted)}
    .form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .form .full{grid-column:1/-1}
    input,select,textarea{width:100%;border:1px solid #d7e5db;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none;transition:.2s}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8bdcae;box-shadow:0 0 0 4px rgba(20,195,111,.12)}
    .faq{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;padding:18px;text-align:left;font:inherit;font-weight:700;color:var(--text);display:flex;justify-content:space-between;gap:12px;cursor:pointer}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 18px}
    .faq-item.active .faq-a{max-height:180px;padding-bottom:18px}
    .faq-item.active .faq-q .icon{transform:rotate(45deg)}
    .faq-q .icon{transition:.2s ease;color:var(--green2);font-size:20px}
    .quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote{padding:18px}
    .quote strong{display:block;margin-bottom:8px}
    .stars{color:#17a95d;letter-spacing:2px;font-size:15px}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .article{padding:18px}
    .article a{color:#136f40;font-weight:700}
    .footer{margin-top:8px;padding:22px 0 28px;background:#eef7f1;border-top:1px solid #d6e5da;color:#244132}
    .footer-grid{display:grid;grid-template-columns:1.05fr .95fr 1fr;gap:18px}
    .footer a{color:#165d37}
    .mini{font-size:13px;color:#5d7266}
    .floating{position:fixed;right:16px;bottom:16px;z-index:40;display:grid;gap:10px}
    .floating a,.floating button{width:48px;height:48px;border-radius:14px;border:0;background:linear-gradient(135deg,var(--green),#2fd57b);color:#fff;box-shadow:0 12px 24px rgba(20,195,111,.26);display:grid;place-items:center;font-weight:800}
    .floating .wx{background:#fff;color:var(--green2);border:1px solid var(--line)}
    .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
    .section-block{padding:20px}
    .center{text-align:center}
    .media-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .media-row img{border-radius:18px;border:1px solid var(--line);background:#fff}
    .small-note{font-size:12px;color:var(--muted)}
    .anchor{scroll-margin-top:92px}
    @media (max-width: 980px){
      .hero-grid,.compare-top,.footer-grid,.grid-4,.grid-3,.workflow,.quotes,.article-list,.media-row,.grid-2{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-toggle{display:inline-flex}
      .nav{display:none;position:absolute;top:64px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
      .nav.open{display:grid}
      .nav a{padding:10px 0;border-bottom:1px dashed #e4eee6}
      .nav a:last-child{border-bottom:0}
      .section-head{flex-direction:column;align-items:flex-start}
      .form{grid-template-columns:1fr}
    }