/* 实诚科技公众号微站 · 移动优先 · 品牌蓝 #2563eb */
:root{
  --blue:#2563eb; --blue-d:#1d4ed8; --blue-l:#eff6ff; --blue-b:#dbeafe;
  --orange:#ff5000; --orange-d:#e64600;
  --ink:#0f172a; --ink-2:#334155; --ink-3:#64748b; --ink-4:#94a3b8;
  --line:#e5e7eb; --bg:#ffffff; --bg-soft:#f7f8fa; --white:#fff;
  --radius:14px; --shadow:0 2px 14px rgba(15,23,42,.06);
  --shadow-h:0 8px 28px rgba(15,23,42,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;padding-bottom:calc(68px + env(safe-area-inset-bottom))}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-d)}
button,input,select,textarea{font:inherit}
h1,h2,h3,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:8px 14px;z-index:100}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.hd-inner{max-width:960px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:10px 16px;gap:12px}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:linear-gradient(135deg,var(--blue),#06b6d4);color:#fff;display:grid;place-items:center;font-weight:800;font-size:19px;box-shadow:0 3px 10px rgba(37,99,235,.28)}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt strong{font-size:16px;letter-spacing:.5px}
.brand-txt small{font-size:9px;color:var(--ink-4);letter-spacing:1.5px}
.hd-actions{display:flex;align-items:center;gap:10px}
.hd-main{font-size:13px;color:var(--ink-3);border:1px solid var(--line);border-radius:20px;padding:5px 12px}
.menu-btn{width:38px;height:34px;border:1px solid var(--line);background:#fff;border-radius:9px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer}
.menu-btn span{display:block;width:17px;height:2px;background:var(--ink-2);border-radius:2px;transition:.2s}
.menu-btn[aria-expanded=true] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn[aria-expanded=true] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded=true] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.site-nav{display:none;border-top:1px solid var(--line);background:#fff}
.site-nav.open{display:block}
.site-nav ul{display:grid;grid-template-columns:repeat(4,1fr);gap:2px;padding:10px 12px 14px;max-width:960px;margin:auto}
.site-nav a{display:block;text-align:center;padding:9px 4px;border-radius:9px;font-size:14px;color:var(--ink-2)}
.site-nav a:hover,.site-nav a[aria-current=page]{background:var(--blue-l);color:var(--blue);font-weight:600}

/* ---------- hero ---------- */
.hero{background:radial-gradient(1000px 380px at 50% -120px,#dbeafe 0%,transparent 70%),linear-gradient(180deg,#f8fbff,#fff);border-bottom:1px solid var(--line);padding:38px 18px 34px;text-align:center}
.hero-inner{max-width:720px;margin:auto}
.hero-badge{display:inline-block;background:var(--blue-l);color:var(--blue-d);border:1px solid var(--blue-b);border-radius:30px;padding:5px 14px;font-size:12px;font-weight:600;letter-spacing:.3px}
.hero h1{font-size:clamp(30px,8.4vw,48px);line-height:1.24;letter-spacing:-1px;margin:18px 0 14px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero-sub{color:var(--ink-2);font-size:15px;max-width:560px;margin:0 auto 22px}
.hero-btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.hero-notice{margin-top:14px;color:var(--ink-3);font-size:12.5px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;border-radius:11px;padding:12px 20px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:.18s;min-height:46px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 5px 16px rgba(37,99,235,.25)}
.btn-primary:hover{background:var(--blue-d);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--blue-b)}
.btn-ghost:hover{background:var(--blue-l)}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:wait;transform:none}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-bottom:1px solid var(--line);padding:18px 8px;text-align:center}
.stats li{display:flex;flex-direction:column;gap:2px;border-right:1px solid var(--line)}
.stats li:last-child{border-right:0}
.stats strong{font-size:clamp(16px,4.4vw,22px);color:var(--blue);font-weight:800;letter-spacing:-.5px}
.stats span{font-size:11px;color:var(--ink-3)}

/* ---------- sections ---------- */
.sec{max-width:960px;margin:auto;padding:38px 16px}
.sec-soft{background:var(--bg-soft);max-width:none;border-block:1px solid var(--line)}
.sec-soft>*{max-width:960px;margin-left:auto;margin-right:auto}
.sec-head{text-align:center;margin-bottom:24px}
.eyebrow{display:inline-block;font-size:11px;letter-spacing:2px;color:var(--blue);font-weight:700;text-transform:uppercase}
.sec-head h2,.sec>h2,.sec-soft>h2{font-size:clamp(22px,5.6vw,30px);font-weight:800;letter-spacing:-.5px;margin:6px 0 8px}
.sec-head p,.page-hero p{color:var(--ink-3);font-size:14px}
.grid{display:grid;gap:14px}
.grid-2,.grid-3{grid-template-columns:1fr}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);transition:.2s}
.card:hover{box-shadow:var(--shadow-h);border-color:var(--blue-b)}
.card h2,.card h3{font-size:18px;font-weight:700;margin:0 0 8px;line-height:1.4}
.card h2 a,.card h3 a{color:var(--ink)}
.card h2 a:hover,.card h3 a:hover{color:var(--blue)}
.card p{color:var(--ink-2);font-size:14px}
.card-icon{font-size:27px;display:block;margin-bottom:10px}
.ticks{margin:12px 0;display:flex;flex-direction:column;gap:6px}
.ticks li{position:relative;padding-left:20px;color:var(--ink-2);font-size:13.5px}
.ticks li::before{content:"✓";position:absolute;left:0;color:#16a34a;font-weight:800}
.card-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px dashed var(--line);margin-top:14px;padding-top:12px;font-size:13px;color:var(--blue);font-weight:600}
.card-link{display:inline-block;margin-top:12px;font-size:13.5px;font-weight:600}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}
.mini-card>span{font-size:22px}
.mini-card h3{font-size:15.5px;font-weight:700;margin:6px 0 4px}
.mini-card p{font-size:13px;color:var(--ink-3)}
.sec-more{text-align:center;margin-top:20px;font-size:14px}

/* ---------- cases / tags / flow ---------- */
.case-card{display:flex;flex-direction:column;gap:4px}
.case-metric{display:inline-block;align-self:flex-start;background:var(--blue-l);color:var(--blue-d);border-radius:6px;padding:3px 9px;font-size:12px;font-weight:700;margin-bottom:6px}
.case-ind{font-size:12px;color:var(--ink-4)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tags span{background:var(--bg-soft);border:1px solid var(--line);color:var(--ink-3);border-radius:20px;padding:2px 10px;font-size:11.5px}
.flow{display:grid;gap:12px;counter-reset:f}
.flow li{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}
.flow-num{width:30px;height:30px;flex:0 0 30px;border-radius:9px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:800;font-size:14px}
.flow h3{font-size:15.5px;font-weight:700}
.flow p{font-size:13px;color:var(--ink-3)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq-item summary{padding:15px 16px;font-size:15px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--blue);font-size:20px;font-weight:400;flex:0 0 auto}
.faq-item[open] summary::after{content:"−"}
.faq-item[open] summary{color:var(--blue)}
.faq-a{padding:0 16px 16px;color:var(--ink-2);font-size:14px;border-top:1px solid var(--line);padding-top:12px}

/* ---------- page hero / tables ---------- */
.page-hero{background:linear-gradient(180deg,#f8fbff,#fff);border-bottom:1px solid var(--line);padding:34px 18px 28px;text-align:center}
.page-hero h1{font-size:clamp(24px,6.4vw,34px);font-weight:800;letter-spacing:-.5px;margin:8px 0 10px;line-height:1.3}
.page-hero p{max-width:620px;margin:auto}
.spec-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:14px;background:#fff}
.spec-table caption{text-align:left;font-size:13px;color:var(--ink-3);padding-bottom:6px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.spec-table th{background:var(--bg-soft);width:110px;white-space:nowrap;color:var(--ink-2);font-weight:600}
.svc-detail{margin-bottom:18px}
.svc-detail-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:6px}
.svc-detail-head h2{font-size:20px}
.svc-detail-head p{font-size:14px;color:var(--ink-2)}
.fact-list{display:flex;flex-direction:column;gap:9px}
.fact-list li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2)}
.fact-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.prose h2{font-size:19px;margin:22px 0 8px}
.prose p{font-size:14.5px;color:var(--ink-2);margin-bottom:10px}
.callout{background:#fff;border:1px solid var(--blue-b);border-left:4px solid var(--blue);border-radius:12px;padding:20px;text-align:center}
.callout h2{font-size:20px;font-weight:800}
.callout p{color:var(--ink-2);font-size:14px;margin:8px 0 14px}
.contact-item{display:flex;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px}
.contact-item>span{font-size:22px}
.contact-item h3{font-size:14px;font-weight:700}
.contact-item p{font-size:14px;color:var(--ink-2)}
.copyable{cursor:pointer;border-bottom:1px dashed var(--blue)}

/* ---------- form ---------- */
.quote-box{max-width:640px;margin:0 auto;padding:34px 16px 40px;scroll-margin-top:70px}
.quote-head{text-align:center;margin-bottom:22px}
.quote-head h2{font-size:clamp(22px,5.6vw,28px);font-weight:800;margin:6px 0}
.quote-head p{color:var(--ink-3);font-size:14px}
.quote-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.fld{margin-bottom:14px;display:flex;flex-direction:column;gap:6px}
.fld label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.fld label em{color:var(--orange);font-style:normal}
.fld .opt{font-weight:400;color:var(--ink-4);font-size:12px}
.fld input,.fld select,.fld textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;background:#fff;color:var(--ink);font-size:15px;min-height:44px}
.fld textarea{resize:vertical;min-height:96px}
.fld input:focus,.fld select:focus,.fld textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.10);outline:none}
.fld-row{display:grid;gap:0 12px;grid-template-columns:1fr}
.honeypot{position:absolute;left:-9999px;height:0;overflow:hidden}
.agree{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--ink-3);margin:4px 0 14px;line-height:1.5}
.agree input{margin-top:3px;flex:0 0 auto}
.form-status{text-align:center;font-size:14px;min-height:0;margin-top:10px}
.form-status.ok{color:#16a34a}.form-status.err{color:#dc2626}
.form-note{text-align:center;font-size:12px;color:var(--ink-4);margin-top:10px}
.quote-alt{display:flex;flex-wrap:wrap;gap:8px 14px;justify-content:center;align-items:center;margin-top:16px;font-size:13.5px;color:var(--ink-3)}

/* ---------- footer ---------- */
.site-footer{background:#0f172a;color:#cbd5e1;padding:30px 18px calc(24px + env(safe-area-inset-bottom));font-size:13.5px}
.site-footer>*{max-width:960px;margin-left:auto;margin-right:auto}
.ft-brand{display:flex;gap:10px;align-items:center;margin-bottom:16px}
.ft-brand strong{color:#fff;font-size:15px}
.ft-brand p{font-size:12.5px;color:var(--ink-4)}
.ft-contact{font-style:normal;display:flex;flex-direction:column;gap:5px}
.ft-contact a{color:#93c5fd}
.ft-qr{text-align:center;margin:18px 0}
.ft-qr img{margin:auto;border-radius:10px;background:#fff;padding:6px}
.ft-qr p{font-size:12px;color:var(--ink-4);margin-top:6px}
.ft-links ul{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin:20px 0 14px}
.ft-links a{color:#cbd5e1}
.ft-links a:hover{color:#fff}
.ft-copy,.ft-note{text-align:center;color:var(--ink-4);font-size:11.5px;line-height:1.7}
.ft-note{margin-top:6px}

/* ---------- bottom CTA ---------- */
.cta-bar{position:fixed;left:0;right:0;bottom:0;z-index:45;display:flex;gap:8px;align-items:center;background:rgba(255,255,255,.98);border-top:1px solid var(--line);padding:9px 12px calc(9px + env(safe-area-inset-bottom));box-shadow:0 -3px 14px rgba(15,23,42,.07)}
.cta-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;font-size:11px;border-radius:9px;min-height:44px}
.cta-tel,.cta-kf{color:var(--ink-2);flex:0 0 62px;background:var(--bg-soft)}
.cta-tel span,.cta-kf span{font-size:16px;line-height:1}
.cta-main{flex:1;background:var(--orange);color:#fff;font-size:15px!important;font-weight:700;box-shadow:0 4px 12px rgba(255,80,0,.25)}
.cta-main:hover{color:#fff;background:var(--orange-d)}

/* ---------- toast ---------- */
.wx-toast{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(15,23,42,.9);color:#fff;padding:11px 18px;border-radius:9px;font-size:13.5px;z-index:100;max-width:80vw;text-align:center}

/* ---------- desktop ---------- */
@media(min-width:700px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .fld-row{grid-template-columns:1fr 1fr}
  .site-nav{display:block!important;border-top:0;max-width:960px;margin:auto}
  .site-nav ul{display:flex;justify-content:flex-end;gap:4px;padding:0 16px 10px}
  .site-nav a{font-size:14px;padding:5px 12px}
  .menu-btn{display:none}
  .hd-main{display:inline-block}
  .cta-bar{max-width:960px;margin:auto;left:0;right:0;border-radius:14px 14px 0 0;bottom:0}
  .hero{padding:56px 18px 48px}
  .sec{padding:52px 16px}
  .quote-box{padding:48px 16px 56px}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}