:root{
  --primary:#1a73e8;
  --primary-dark:#0b5fcc;
  --accent:#00c6ff;
  --bg:#f6f9fc;
  --card:#ffffff;
  --text:#1f2937;
  --muted:#6b7280;
  --border:#e5e7eb;
  --success:#10b981;
  --shadow:0 4px 18px rgba(20,40,90,.08);
  --radius:12px;
  --max:1120px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .6em}
h1{font-size:2.2rem}
h2{font-size:1.6rem}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 20px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:1.35rem;letter-spacing:.5px;
  text-decoration:none;
}
.brand:hover{text-decoration:none}
.brand-logo{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;color:#fff;font-weight:900;font-size:.95rem;
  box-shadow:0 4px 12px rgba(26,115,232,.35);
}
.brand-text{
  background:linear-gradient(90deg,var(--primary),var(--accent));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.brand-domain{color:var(--text);font-weight:600;font-size:1rem;letter-spacing:.3px}
.brand:hover .brand-logo{transform:rotate(-8deg) scale(1.05)}
.brand-logo{transition:transform .25s ease}
.nav-wrap ul{list-style:none;display:flex;gap:6px;padding:0;margin:0;flex-wrap:wrap}
.nav-wrap a{
  display:inline-block;padding:8px 14px;border-radius:8px;color:var(--text);
  font-weight:500;font-size:.95rem;
}
.nav-wrap a:hover,
.nav-wrap a[aria-current="page"]{
  background:var(--primary);color:#fff;text-decoration:none;
}

.breadcrumb-wrap{background:#eef4fb;border-bottom:1px solid var(--border);padding:12px 0}
.breadcrumb-wrap ol{list-style:none;display:flex;gap:8px;padding:0;margin:0;font-size:.9rem;color:var(--muted)}
.breadcrumb-wrap li+li::before{content:"\203A";color:#9ca3af;margin-right:8px}
.breadcrumb-wrap a{color:var(--primary)}

.hero{
  background:
    radial-gradient(1200px 500px at 10% -10%,rgba(0,198,255,.18),transparent 60%),
    radial-gradient(1000px 500px at 110% 10%,rgba(26,115,232,.18),transparent 55%),
    linear-gradient(135deg,#0b5fcc 0%,#1a73e8 50%,#00c6ff 100%);
  color:#fff;padding:80px 0 90px;
}
.hero .eyebrow{
  display:inline-block;background:rgba(255,255,255,.15);padding:6px 14px;
  border-radius:999px;font-size:.9rem;margin-bottom:18px;
}
.hero h1{font-size:2.4rem;max-width:820px}
.hero p.lead{font-size:1.15rem;max-width:760px;opacity:.92}
.btn{
  display:inline-block;background:#fff;color:var(--primary);
  padding:13px 26px;border-radius:10px;font-weight:700;
  box-shadow:0 8px 24px rgba(0,0,0,.15);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn.secondary{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.7);box-shadow:none}
.btn.dark{background:var(--primary);color:#fff}
.btn.dark:hover{background:var(--primary-dark)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:16px}

section{padding:64px 0}
.section-head{text-align:center;margin-bottom:36px}
.section-head .tag{color:var(--primary);font-weight:700;letter-spacing:1px;text-transform:uppercase;font-size:.85rem}
.section-head h2{font-size:1.9rem;margin:.3em 0}
.section-head p{color:var(--muted);max-width:720px;margin:0 auto}

.grid{display:grid;gap:22px}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:900px){
  .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .grid.cols-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .grid.cols-4,.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}
  h1{font-size:1.8rem}
  .hero h1{font-size:1.9rem}
}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:.25s;
}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(20,40,90,.1)}
.card .ico{
  width:48px;height:48px;border-radius:12px;
  background:linear-gradient(135deg,#e8f1ff,#d5eaff);
  display:grid;place-items:center;color:var(--primary);font-size:1.4rem;margin-bottom:14px;
}
.card h3{margin-bottom:.4em}
.card p{color:var(--muted);margin-bottom:14px}
.card .more{font-weight:700}

.stats{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.stat-num{font-size:2rem;font-weight:800;color:var(--primary)}
.stat-label{color:var(--muted);font-size:.95rem}

.testi .who{font-weight:700;color:var(--text)}
.testi .role{color:var(--muted);font-size:.9rem;margin-bottom:8px}

.cta-band{
  background:linear-gradient(135deg,#0b5fcc,#00c6ff);color:#fff;border-radius:14px;
  padding:42px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{margin:0;font-size:1.6rem}
.cta-band p{margin:.2em 0 0;opacity:.9}
.cta-band .btn{background:#fff;color:var(--primary)}

.table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--border);background:#fff}
table{width:100%;border-collapse:collapse}
th,td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border)}
th{background:#f1f5fb;color:var(--primary);font-size:.95rem}
tr:last-child td{border-bottom:none}
.tag-ok{color:var(--success);font-weight:700}
.tag-bad{color:#ef4444;font-weight:700}

.faq details{
  background:#fff;border:1px solid var(--border);border-radius:10px;margin-bottom:12px;
  padding:14px 20px;transition:.2s;
}
.faq details[open]{border-color:var(--primary);box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--primary)}
.faq details[open] summary::after{content:"-"}
.faq details p{color:#374151;margin:10px 0 0}

.form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form label{display:block;font-weight:600;margin-bottom:6px}
.form input,.form select,.form textarea{
  width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:8px;
  font:inherit;color:var(--text);background:#fafbfe;margin-bottom:14px;
}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,115,232,.15);background:#fff;
}

.article{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:18px}
.article h2{font-size:1.3rem;margin-bottom:.4em}
.article time{color:var(--muted);font-size:.88rem}
.article p{color:#374151;margin:10px 0}

.site-footer{background:#0f172a;color:#cbd5e1;padding:54px 0 20px;margin-top:60px}
.site-footer a{color:#cbd5e1}
.site-footer a:hover{color:#fff}
.site-footer .grid h4{color:#fff;margin-bottom:12px;font-size:1rem}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.copyright{border-top:1px solid #1f2937;margin-top:30px;padding-top:18px;color:#94a3b8;font-size:.9rem;text-align:center}

.center{text-align:center}
.mt-24{margin-top:24px}
.mt-32{margin-top:32px}
.mt-40{margin-top:40px}
.badge{
  display:inline-block;padding:4px 10px;border-radius:6px;background:#eef4fb;color:var(--primary);
  font-size:.8rem;font-weight:700;
}

.breadcrumb-wrap{background:#eef4fb;border-bottom:1px solid var(--border);padding:14px 0}
.breadcrumb-wrap ol{list-style:none;padding:0;margin:0;display:flex;gap:8px;font-size:.9rem;color:var(--muted)}
.breadcrumb-wrap li+li::before{content:"›";margin-right:8px;color:#9ca3af}
.breadcrumb-wrap a{color:var(--primary)}

.steps{counter-reset:step;list-style:none;padding:0;margin:20px 0}
.steps li{counter-increment:step;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px 18px 60px;margin-bottom:12px;position:relative;box-shadow:var(--shadow)}
.steps li::before{content:counter(step);position:absolute;left:18px;top:50%;transform:translateY(-50%);width:32px;height:32px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}
.steps code{background:#eef4fb;color:#b91c1c;padding:2px 6px;border-radius:4px;font-size:.9rem}

.faq details{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;padding:0;box-shadow:var(--shadow);overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--primary);font-weight:700}
.faq details[open] summary::after{content:"−"}
.faq summary:hover{background:#f0f7ff}
.faq details p{padding:0 22px 22px;margin:0;color:#374151}

.cta-band{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border-radius:16px;padding:44px 36px;margin:40px 0;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin:0 0 8px;font-size:1.5rem}
.cta-band p{color:rgba(255,255,255,.9);margin:0}
.cta-band .btn{background:#fff;color:var(--primary)}
.cta-band .btn:hover{background:#f0f7ff}

.timeline{position:relative;padding-left:30px;margin:24px 0}
.timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:2px;background:linear-gradient(to bottom,var(--primary),var(--accent))}
.timeline-item{position:relative;padding:0 0 26px 24px}
.timeline-item h3{margin-bottom:4px}
.timeline-item p{color:#374151;margin:0}
.timeline-dot{position:absolute;left:-30px;top:4px;width:16px;height:16px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px var(--primary)}

.avatar{width:72px;height:72px;border-radius:50%;background:#eef4fb;display:flex;align-items:center;justify-content:center;font-size:2rem;margin:0 auto 12px}

.table-wrap{overflow-x:auto;margin:20px 0}
.table-wrap table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.table-wrap th,.table-wrap td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--border)}
.table-wrap th{background:#eef4fb;color:#0f172a;font-weight:700}
.table-wrap tr:last-child td{border-bottom:none}
.table-wrap tbody tr:hover{background:#f8fafc}
.tag-ok{background:#ecfdf5;color:#065f46;padding:3px 10px;border-radius:999px;font-weight:700;font-size:.85rem}
.tag-bad{background:#fef2f2;color:#991b1b;padding:3px 10px;border-radius:999px;font-weight:700;font-size:.85rem}

.contact-form{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:grid;gap:16px}
.contact-form label{display:flex;flex-direction:column;gap:6px;font-weight:600;color:#374151;font-size:.92rem}
.contact-form label.checkbox{flex-direction:row;align-items:center;gap:8px;font-weight:400;font-size:.9rem}
.contact-form input[type=text],.contact-form input[type=email],.contact-form input[type=tel],.contact-form select,.contact-form textarea{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;font-family:inherit;background:#f9fafb}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,115,232,.12)}
.contact-form button{justify-self:start;margin-top:8px}

.testi .card p{font-style:italic;color:#374151;margin-bottom:16px}
.testi .who{font-weight:700;color:#0f172a}
.testi .role{color:var(--muted);font-size:.88rem}

.stats{background:#fff}
.stat-num{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.1}
.stat-label{color:var(--muted);font-size:.9rem;margin-top:4px}

.eyebrow{display:inline-block;background:#eef4fb;color:var(--primary);padding:6px 14px;border-radius:999px;font-size:.82rem;font-weight:700;letter-spacing:.5px}
.tag{display:inline-block;background:#eef4fb;color:var(--primary);padding:4px 10px;border-radius:6px;font-size:.8rem;font-weight:700}

.qr-placeholder{margin:14px auto;background:#f3f4f6;border:1px dashed #9ca3af;color:#6b7280;padding:20px;border-radius:10px;font-size:.88rem;width:150px;text-align:center}

@media (max-width:640px){
  .cta-band{flex-direction:column;align-items:flex-start}
  h1{font-size:1.7rem}
  h2{font-size:1.3rem}
}