/* 锦满科技官网 - 全站样式 */
:root{
  --bg:#FDF8EE; --bg2:#FFFFFF; --ink:#2B2118; --muted:#7A6A58;
  --brand:#B73A2B; --brand-dark:#93301F; --gold:#C99A3C; --gold-soft:#F3E3C2;
  --deep:#241A12; --deep2:#33261A; --line:#EADFC8; --radius:18px;
  --shadow:0 18px 45px rgba(120,72,20,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1140px;margin:0 auto;padding:0 24px}

/* 导航 */
nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.3s;background:rgba(253,248,238,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
nav.scrolled{box-shadow:0 6px 24px rgba(120,72,20,.10)}
.nav-in{max-width:1140px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:22px;font-weight:800;letter-spacing:2px}
.logo b{color:var(--brand)}
.nav-links{display:flex;gap:32px;font-size:15px;color:var(--muted)}
.nav-links a:hover,.nav-links a.active{color:var(--brand);font-weight:700}
.btn{display:inline-block;padding:13px 34px;border-radius:999px;font-weight:700;font-size:16px;transition:.25s;cursor:pointer;border:none}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;box-shadow:0 10px 26px rgba(183,58,43,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(183,58,43,.42)}
.btn-ghost{border:2px solid var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:10px 26px;font-size:14px}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* 首页首屏 */
.hero{padding:160px 0 80px;overflow:hidden;background:
  radial-gradient(900px 480px at 85% 10%,rgba(201,154,60,.20),transparent 60%),
  radial-gradient(760px 520px at 8% 90%,rgba(183,58,43,.10),transparent 60%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:4px;color:var(--brand);font-weight:700;border:1px solid var(--line);background:#fff;padding:8px 18px;border-radius:999px;margin-bottom:26px}
.hero h1{font-size:50px;line-height:1.3;font-weight:800;letter-spacing:1px;margin-bottom:22px}
.hero h1 .hl{color:var(--brand)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:520px;margin-bottom:36px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.trust-line{display:flex;gap:10px 26px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.trust-line i{font-style:normal;color:var(--gold);font-weight:800;margin-right:6px}
.hero-img img{border-radius:24px;box-shadow:var(--shadow)}

/* 内页小横幅 */
.page-hero{padding:150px 0 60px;text-align:center;background:
  radial-gradient(700px 340px at 50% 0%,rgba(201,154,60,.18),transparent 65%),var(--bg)}
.page-hero h1{font-size:42px;font-weight:800;margin-bottom:14px}
.page-hero p{color:var(--muted);font-size:17px;max-width:620px;margin:0 auto}

section{padding:88px 0}
.sec-head{text-align:center;max-width:640px;margin:0 auto 56px}
.sec-tag{font-size:13px;letter-spacing:4px;color:var(--brand);font-weight:700;margin-bottom:14px}
.sec-head h2{font-size:36px;font-weight:800;margin-bottom:16px;letter-spacing:1px}
.sec-head p{color:var(--muted);font-size:16px}

/* 服务卡片 */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.svc{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:flex;flex-direction:column}
.svc:hover{transform:translateY(-6px)}
.svc img{aspect-ratio:16/10;object-fit:cover;width:100%}
.svc-body{padding:30px 28px;display:flex;flex-direction:column;flex:1}
.svc-body h3{font-size:22px;margin-bottom:6px}
.svc-body .for{font-size:13px;color:var(--brand);font-weight:700;margin-bottom:14px}
.svc-body p{font-size:15px;color:var(--muted);margin-bottom:22px;flex:1}
.svc-body .more{color:var(--brand);font-weight:700;font-size:15px}
.svc-body .more:hover{text-decoration:underline}

/* 服务详情 */
.svc-detail{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-bottom:1px dashed var(--line)}
.svc-detail:last-child{border-bottom:none}
.svc-detail.flip .sd-img{order:2}
.sd-img img{border-radius:20px;box-shadow:var(--shadow)}
.svc-detail h2{font-size:32px;margin-bottom:8px}
.svc-detail .for{font-size:14px;color:var(--brand);font-weight:700;margin-bottom:20px}
.svc-detail h4{font-size:16px;margin:20px 0 8px;color:var(--ink)}
.svc-detail ul{list-style:none;font-size:15px;color:var(--muted)}
.svc-detail ul li{padding:6px 0 6px 26px;position:relative}
.svc-detail ul li::before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:800}
.gain{margin-top:20px;background:var(--bg);border-left:4px solid var(--gold);border-radius:0 12px 12px 0;padding:14px 18px;font-size:15px}
.gain b{color:var(--brand)}

/* 深色承诺区 */
.promise{background:linear-gradient(160deg,var(--deep),var(--deep2));color:#F5EBD8}
.promise .sec-head h2{color:#FFF7E8}
.promise .sec-head p{color:#C9B896}
.pm-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.pm{border:1px solid rgba(201,154,60,.28);border-radius:var(--radius);padding:34px 26px;background:rgba(255,255,255,.03);transition:.3s}
.pm:hover{background:rgba(201,154,60,.10);transform:translateY(-4px)}
.pm-num{font-size:15px;color:var(--gold);font-weight:800;letter-spacing:2px;margin-bottom:14px}
.pm h3{font-size:19px;color:#FFE9C4;margin-bottom:12px}
.pm p{font-size:14px;color:#C9B896;line-height:1.8}

/* 为什么选锦满 */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.why{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow)}
.why h3{font-size:20px;margin-bottom:12px}
.why h3 .n{color:var(--gold);margin-right:10px}
.why p{font-size:15px;color:var(--muted)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:30px 20px;text-align:center;position:relative;box-shadow:var(--shadow)}
.step:not(:last-child)::after{content:"→";position:absolute;right:-24px;top:50%;transform:translateY(-50%);color:var(--gold);font-size:22px;font-weight:800;z-index:2}
.step-n{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--gold));color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:13px;color:var(--muted)}
.contract{margin-top:56px;background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:44px;box-shadow:var(--shadow)}
.contract h3{font-size:24px;text-align:center;margin-bottom:10px}
.contract>p{text-align:center;color:var(--muted);font-size:15px;margin-bottom:30px}
.contract-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cc{background:var(--bg);border-radius:12px;padding:24px}
.cc h4{font-size:17px;color:var(--brand);margin-bottom:8px}
.cc p{font-size:14px;color:var(--muted)}

/* 定价 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;align-items:stretch}
.price{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:42px 34px;display:flex;flex-direction:column;box-shadow:var(--shadow);transition:.3s}
.price:hover{transform:translateY(-6px)}
.price.hot{border:2px solid var(--brand);position:relative}
.price-tag{position:absolute;top:-16px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-size:13px;font-weight:700;padding:6px 22px;border-radius:999px;white-space:nowrap}
.price h3{font-size:21px;margin-bottom:8px}
.price .p-for{font-size:14px;color:var(--muted);margin-bottom:20px}
.price .p-num{font-size:40px;font-weight:800;color:var(--brand);margin-bottom:4px}
.price .p-num small{font-size:15px;color:var(--muted);font-weight:400}
.price ul{list-style:none;font-size:14px;color:var(--muted);margin:22px 0 30px;flex:1}
.price ul li{padding:8px 0 8px 26px;position:relative;border-bottom:1px dashed var(--line)}
.price ul li::before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:800}
.price-note{text-align:center;color:var(--muted);font-size:14px;margin-top:34px;background:var(--bg2);border:1px dashed var(--line);border-radius:12px;padding:18px 24px}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto}
.faq{background:var(--bg2);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;background:none;border:none;text-align:left;padding:22px 26px;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit}
.faq-q .plus{flex:none;width:30px;height:30px;border-radius:50%;background:var(--gold-soft);color:var(--brand);font-size:20px;line-height:30px;text-align:center;transition:.3s;font-weight:400}
.faq.open .faq-q .plus{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 26px 24px;color:var(--muted);font-size:15px}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.c-card{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow);text-align:center}
.c-card .k{font-size:13px;letter-spacing:4px;color:var(--brand);font-weight:700;margin-bottom:12px}
.c-card .v{font-size:26px;font-weight:800;margin-bottom:10px;word-break:break-all}
.c-card .d{font-size:14px;color:var(--muted)}
.prep{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.prep h3{font-size:22px;margin-bottom:8px}
.prep>p{font-size:14px;color:var(--muted);margin-bottom:20px}
.prep ol{margin-left:20px;font-size:15px;color:var(--muted)}
.prep ol li{padding:6px 0}
.prep ol li b{color:var(--ink)}

/* CTA 横幅 */
.cta-band{background:linear-gradient(140deg,#3A2417,#241A12 60%,#4A1F16);color:#F5EBD8;text-align:center;border-radius:28px;padding:70px 40px;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(201,154,60,.28),transparent 65%);top:-180px;right:-120px}
.cta-band h2{font-size:34px;color:#FFF7E8;margin-bottom:14px;position:relative}
.cta-band p{color:#C9B896;max-width:560px;margin:0 auto 32px;position:relative}

/* 页脚 */
footer{background:var(--deep);color:#8a7a63;padding:48px 0 32px;font-size:14px}
.foot-grid{max-width:1140px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:32px}
.foot-grid .logo{font-size:20px;color:#F5EBD8;margin-bottom:12px;display:block}
.foot-grid p{font-size:13px;line-height:1.9}
.foot-grid h4{color:#FFE9C4;font-size:15px;margin-bottom:14px}
.foot-grid ul{list-style:none}
.foot-grid ul li{padding:5px 0}
.foot-grid ul a:hover{color:var(--gold)}
.foot-bottom{max-width:1140px;margin:0 auto;padding:20px 24px 0;border-top:1px solid rgba(201,154,60,.18);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}

/* 滚动显现 */
.rv{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}

@media(max-width:960px){
  .hero-grid,.svc-detail,.contact-grid{grid-template-columns:1fr}
  .svc-detail.flip .sd-img{order:0}
  .hero h1{font-size:38px}
  .page-hero h1{font-size:34px}
  .svc-grid,.price-grid{grid-template-columns:1fr}
  .pm-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid,.contract-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .step:not(:last-child)::after{content:"↓";right:50%;top:auto;bottom:-26px;transform:translateX(50%)}
  .step{margin-bottom:14px}
  .foot-grid{grid-template-columns:1fr}
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:20px 24px;gap:18px;box-shadow:0 18px 30px rgba(120,72,20,.12)}
  .nav-links.open{display:flex}
  .burger{display:block}
  section{padding:64px 0}
}
@media(max-width:560px){.pm-grid{grid-template-columns:1fr}.hero h1{font-size:32px}.sec-head h2{font-size:30px}}