/* 功能页公共样式（与首页同一套配色与字号） */
:root{
 --c1:#3F7A46;--c2:#63A96C;--c3:#CFE6D2;--c5:#F4FAF5;--c6:#14251A;--mut:#5C6675;
 --ln:rgba(15,23,42,.09);--max:1120px;--fh:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--fh);color:#14251A;background:#fff;line-height:1.8;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
h1,h2,h3,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--ln)}
.nav-in{display:flex;align-items:center;gap:22px;padding:14px 24px;max-width:var(--max);margin:0 auto}
.brand{font-weight:800;font-size:17px;letter-spacing:.02em}
.nav-lk{display:flex;gap:24px;margin-left:auto;font-size:13.5px;color:var(--mut)}
.nav-lk a:hover{color:var(--c1)}
.nav-x{display:flex;align-items:center;gap:14px;padding-left:20px;border-left:1px solid var(--ln)}
.nav-tel{font-size:12.5px;color:var(--mut)}
.nav-tel a:hover{color:var(--c1)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;
 border-radius:10px;font-size:14px;font-weight:700;background:var(--c1);color:#fff;transition:transform .2s,opacity .2s}
.btn:hover{transform:translateY(-1px)}
.btn-b{background:#fff;color:#14251A;border:1px solid var(--ln)}
.btn-b:hover{border-color:var(--c1);color:var(--c1)}

/* 页头 */
.ph{padding:52px 0 40px;border-bottom:1px solid var(--ln);
 background:radial-gradient(600px 320px at 80% -10%,#3F7A4614,transparent 70%),linear-gradient(180deg,#F7FBF7,#fff)}
.crumb{font-size:12.5px;color:var(--mut);margin-bottom:14px}
.crumb span{margin:0 8px;color:#c9d1d9}
h1{font-size:clamp(24px,3.2vw,34px);line-height:1.32;font-weight:800;letter-spacing:-.01em;margin-bottom:16px}
.lead{font-size:15.5px;color:var(--mut);max-width:66ch}
.cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.micro{font-size:12.5px;color:var(--mut);margin-top:14px}

/* 正文 */
section{padding:46px 0;border-bottom:1px solid var(--ln)}
h2{font-size:22px;line-height:1.4;font-weight:800;margin-bottom:18px}
h3{font-size:16px;font-weight:800;margin-bottom:6px}
p{font-size:14.5px;color:#3b4854;margin-bottom:12px}
p:last-child{margin-bottom:0}
.def{background:var(--c5);border-left:3px solid var(--c1);border-radius:0 8px 8px 0;padding:18px 20px}
ol.steps{counter-reset:s;display:grid;grid-template-columns:1fr 1fr;gap:20px 32px}
ol.steps li{counter-increment:s;position:relative;padding-left:38px}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:1px;width:24px;height:24px;border-radius:50%;
 background:var(--c1);color:#fff;font-size:12px;font-weight:700;display:grid;place-items:center}
ol.steps b{display:block;font-size:14.5px;margin-bottom:3px}
ol.steps span{font-size:13.3px;color:var(--mut);line-height:1.75;display:block}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{border:1px solid var(--ln);border-radius:10px;padding:20px;background:#fff}
.card p{font-size:13.3px;color:var(--mut);margin:0}
ul.plain{font-size:14px;color:#3b4854}
ul.plain li{position:relative;padding-left:16px;margin-bottom:9px}
ul.plain li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--c2)}
.faq details{border-bottom:1px solid var(--ln);padding:14px 0}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;font-weight:700;font-size:14.5px;list-style:none;position:relative;padding-right:24px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:0;color:var(--c1);font-weight:700}
.faq details[open] summary::after{content:"−"}
.faq p{margin-top:8px;color:var(--mut);font-size:14px;padding-right:24px}
.rel{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.rel a{font-size:13px;padding:8px 14px;border:1px solid var(--ln);border-radius:8px;background:#fff;color:#3b4854}
.rel a:hover{border-color:var(--c1);color:var(--c1)}

/* 结尾 CTA */
.end{margin:44px 0 64px;border:1px solid var(--ln);border-radius:12px;padding:28px;
 display:flex;gap:24px;align-items:center;justify-content:space-between;background:var(--c5);flex-wrap:wrap}
.end h2{font-size:19px;margin-bottom:6px}
.end p{font-size:13.3px;color:var(--mut);margin:0}

/* 页脚 */
.foot{background:#14251A;color:#ffffff9e;padding:34px 0;font-size:12.5px}
.foot-in{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}
.foot a{color:#CFE6D2}

@media(max-width:860px){
 .nav-lk{display:none}
 ol.steps{grid-template-columns:1fr}
 .grid3{grid-template-columns:1fr}
 .ph{padding:40px 0 32px}
 section{padding:36px 0}
}