/* 江西德润工程技术有限公司 官网样式 · 2026-09-14 */
:root{
  --green:#1f7a4d; --green-2:#2e9e63; --green-dark:#155c39; --green-50:#eef7f1;
  --ink:#16241c; --ink-2:#3f5548; --line:#dfe8e2; --bg:#ffffff; --bg-2:#f6faf7;
  --maxw:1160px; --radius:14px; --shadow:0 10px 30px rgba(21,92,57,.10);
  --font:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;font-weight:600;font-size:15px;transition:.2s;border:1.5px solid transparent;cursor:pointer}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:var(--green-50)}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--green);font-weight:700;margin-bottom:12px;text-transform:uppercase}
h2.sec-title{font-size:30px;letter-spacing:.01em;margin-bottom:14px}
.sec-sub{color:var(--ink-2);max-width:640px;margin-bottom:34px}
section{padding:76px 0}
.bg-2{background:var(--bg-2)}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.02em}
.logo .mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--green-2));color:#fff;display:grid;place-items:center;font-size:16px}
.logo small{display:block;font-size:11px;font-weight:500;color:var(--ink-2);letter-spacing:.06em}
.menu{display:flex;gap:26px;align-items:center}
.menu a{font-size:15px;color:var(--ink-2);font-weight:500}
.menu a:hover,.menu a.on{color:var(--green)}
.nav .btn{padding:9px 18px;font-size:14px}
.burger{display:none;font-size:22px;background:none;border:none;color:var(--green)}

/* Hero */
.hero{position:relative;background:linear-gradient(160deg,#0f4d30 0%,#1f7a4d 55%,#2e9e63 100%);color:#fff;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 300px at 80% 10%,rgba(255,255,255,.14),transparent 60%),
  radial-gradient(500px 260px at 10% 90%,rgba(255,255,255,.10),transparent 60%)}
.hero .wrap{position:relative;padding:96px 22px 90px}
.hero h1{font-size:44px;line-height:1.25;letter-spacing:.01em;max-width:760px}
.hero p{margin-top:18px;font-size:17px;color:rgba(255,255,255,.9);max-width:620px}
.hero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero .btn-primary{background:#fff;color:var(--green-dark)}
.hero .btn-primary:hover{background:#eafaf1}
.hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6)}
.hero .btn-ghost:hover{background:rgba(255,255,255,.12)}
.hero-badges{margin-top:36px;display:flex;gap:26px;flex-wrap:wrap;color:rgba(255,255,255,.92);font-size:14px}
.hero-badges b{color:#fff;font-size:18px;display:block}

/* Cards */
.grid{display:grid;gap:20px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#cfe6d9}
.card .ico{width:46px;height:46px;border-radius:12px;background:var(--green-50);color:var(--green);display:grid;place-items:center;font-size:22px;margin-bottom:16px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:14.5px}

/* About */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.about p{color:var(--ink-2);margin-bottom:14px}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.stat b{display:block;font-size:30px;color:var(--green);line-height:1.1}
.stat span{font-size:13.5px;color:var(--ink-2)}

/* Band */
.band{background:linear-gradient(135deg,var(--green-dark),var(--green));color:#fff;border-radius:18px;padding:46px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.band h3{font-size:24px}
.band p{color:rgba(255,255,255,.9);margin-top:6px}

/* footer */
footer{background:#0f2119;color:#c7d8ce;padding:56px 0 26px;font-size:14px}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
footer h4{color:#fff;font-size:15px;margin-bottom:14px}
footer a{color:#c7d8ce;display:block;padding:4px 0}
footer a:hover{color:#fff}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#8fa89a;font-size:12.5px}

/* page head */
.page-head{background:linear-gradient(135deg,#12482e,#1f7a4d);color:#fff;padding:64px 0}
.page-head h1{font-size:34px}
.page-head p{color:rgba(255,255,255,.88);margin-top:8px}
.article{max-width:820px}
.article h3{margin:26px 0 10px;color:var(--green-dark)}
.article p{color:var(--ink-2);margin-bottom:12px}
.todo{color:#b45309;background:#fef6e7;border:1px dashed #f0c97a;border-radius:8px;padding:2px 8px;font-size:13px;white-space:nowrap}

@media(max-width:900px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .about{grid-template-columns:1fr}
  footer .cols{grid-template-columns:1fr}
  .hero h1{font-size:34px}
}
@media(max-width:620px){
  .menu{display:none}
  .menu.show{display:flex;position:absolute;top:70px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;gap:4px;padding:14px 22px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .menu.show a{width:100%;padding:8px 0}
  .burger{display:block}
  .g4,.g3,.g2{grid-template-columns:1fr}
  .hero .wrap{padding:64px 22px}
  section{padding:56px 0}
}

/* ===== 个人站扩展(2026-09-14) ===== */
.list{display:grid;gap:16px}
.post{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;transition:.2s}
.post:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#cfe6d9}
.post h3{font-size:19px;margin-bottom:8px;color:var(--ink)}
.post:hover h3{color:var(--green-dark)}
.post p{color:var(--ink-2);font-size:14.5px}
.meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7d9587;margin-top:12px}
.tag{display:inline-block;font-size:12px;padding:2px 10px;border-radius:999px;background:var(--green-50);color:var(--green-dark);font-weight:600;margin-right:6px;margin-bottom:6px}
.lead{font-size:17px;color:var(--ink-2);max-width:760px}
.disclaimer{background:#f0f6f2;border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:13px;color:#5c7367;margin-top:26px}
.res-group{margin-bottom:34px}
.res-group h3{font-size:18px;color:var(--green-dark);margin-bottom:14px;padding-left:12px;border-left:4px solid var(--green);border-radius:2px}
.res-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.res-links a{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;transition:.2s}
.res-links a:hover{border-color:var(--green);box-shadow:var(--shadow);transform:translateY(-2px)}
.res-links b{font-size:15px;color:var(--ink)}
.res-links small{display:block;color:var(--ink-2);font-size:12.5px;margin-top:4px}
@media(max-width:900px){.res-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.res-links{grid-template-columns:1fr}}
.timeline{position:relative;padding-left:26px;border-left:2px solid var(--line)}
.timeline .item{position:relative;padding:0 0 26px 8px}
.timeline .item:before{content:"";position:absolute;left:-35px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--green);border:3px solid #fff;box-shadow:0 0 0 1px var(--green)}
.timeline .item b{color:var(--green-dark)}
.timeline .item span{font-size:12.5px;color:#7d9587;margin-left:8px}

/* ===== 2026-10-29 首页扩充:流程 / FAQ / 二维码 ===== */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.steps .step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.steps .num{display:inline-block;font-size:13px;font-weight:800;color:var(--green);letter-spacing:.1em;margin-bottom:8px}
.steps .step h3{font-size:16px;margin-bottom:6px}
.steps .step p{color:var(--ink-2);font-size:13.5px}
.faq{display:grid;gap:12px;max-width:820px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 20px}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:"＋";color:var(--green);font-weight:800;margin-right:10px}
.faq details[open] summary:before{content:"－"}
.faq details p{color:var(--ink-2);font-size:14.5px;margin-top:10px}
.qr-block{display:flex;align-items:center;gap:28px;margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;flex-wrap:wrap}
.qr-block img{border-radius:10px;border:1px solid var(--line)}
.qr-block h3{font-size:20px;margin-bottom:8px}
.qr-block p{color:var(--ink-2);font-size:14.5px;margin-bottom:6px}
.qr-block .qr-mail a{color:var(--green);font-weight:600}
.qr-card{text-align:center}
.qr-card .qr{margin:6px auto 14px;border-radius:10px;border:1px solid var(--line)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.steps{grid-template-columns:1fr}.qr-block{justify-content:center;text-align:center}}