/* ==========================================================================
   chaxun.html 证书查询核验页 私有样式
   版式：居中标题hero + 四步纵向卡片 / 左文右图扫码卡 / 四宫格+防骗条
   ========================================================================== */

/* ---------- Hero ---------- */
.cx-hero{padding:140px 0 60px;background:linear-gradient(180deg,var(--cream-2),var(--cream))}
.cx-hero-head{max-width:720px;margin:0 auto;text-align:center}
.cx-kicker{font-size:13px;letter-spacing:3px;color:var(--green-deep);font-weight:600;margin-bottom:16px}
.cx-title{font-size:clamp(30px,4.4vw,46px);line-height:1.3;letter-spacing:1px}
.cx-title span{color:var(--wood-deep)}
.cx-desc{margin:18px auto 0;max-width:640px;font-size:15.5px;line-height:1.9}
.cx-hero-actions{margin-top:26px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 四步 ---------- */
.cx-steps{list-style:none;max-width:880px;margin:52px auto 0;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cx-step{display:flex;gap:18px;background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease)}
.cx-step:hover{transform:translateY(-4px)}
.cx-step-num{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--green-dark);color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;justify-content:center}
.cx-step-body h3{font-size:16.5px;margin-bottom:6px}
.cx-step-body p{font-size:14px;line-height:1.75}

/* ---------- 扫码示意 ---------- */
.cx-scan-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cx-scan-p{margin-top:16px;font-size:15.5px;line-height:1.9}
.cx-scan-points{margin-top:20px;display:flex;flex-direction:column;gap:12px;background:var(--cream-3);border-radius:var(--radius-sm);padding:22px}
.cx-scan-points li{position:relative;padding-left:26px;font-size:14.5px;color:var(--ink-soft);line-height:1.7}
.cx-scan-points li::before{content:"!";position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;background:#b0553f;color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:700}
.cx-scan-photo{margin:0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md)}
.cx-scan-photo img{width:100%;aspect-ratio:4/3;object-fit:cover}
.cx-scan-photo figcaption{font-size:13px;color:var(--ink-faint);padding-top:10px;text-align:center}

/* ---------- 谁要查 ---------- */
.cx-who-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cx-who-card{background:var(--white);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);border-top:3px solid var(--green)}
.cx-who-card h3{font-size:16px;margin-bottom:8px}
.cx-who-card p{font-size:14px;line-height:1.75}
.cx-warn{margin-top:32px;background:#fbf1ee;border:1px solid #e8cdc4;border-left:5px solid #b0553f;border-radius:var(--radius-sm);padding:20px 24px;font-size:15px;line-height:1.8;color:#7a4030}
.cx-warn strong{color:#b0553f}

/* ---------- 承诺 ---------- */
.cx-promise-inner{max-width:760px;margin:0 auto;text-align:center}
.cx-promise-inner h2{font-size:24px;margin-bottom:14px}
.cx-promise-inner p{font-size:15px;line-height:1.9}
.cx-promise-inner strong{color:var(--green-deep)}

/* ---------- FAQ ---------- */
.cx-faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.cx-faq-item{background:var(--cream-3);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 22px}
.cx-faq-item[open]{background:var(--white);box-shadow:var(--shadow-sm)}
.cx-faq-item summary{cursor:pointer;font-family:var(--font-serif);font-weight:700;font-size:16px;padding:18px 0;list-style:none;position:relative;padding-right:30px}
.cx-faq-item summary::-webkit-details-marker{display:none}
.cx-faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:22px;color:var(--wood);font-weight:400;transition:transform .3s}
.cx-faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.cx-faq-item p{padding:0 0 18px;font-size:14.5px;line-height:1.9}

/* ---------- 互链 ---------- */
.cx-rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cx-rel-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .3s var(--ease)}
.cx-rel-card:hover{transform:translateY(-4px)}
.cx-rel-card h3{font-size:15.5px;margin-bottom:6px;color:var(--green-dark)}
.cx-rel-card p{font-size:13px;line-height:1.6}
.cx-rel-card span{display:inline-block;margin-top:8px;color:var(--wood-deep);font-weight:700}

/* ---------- 底部 CTA ---------- */
.cx-cta{background:var(--wood);padding:64px 0;text-align:center}
.cx-cta-inner{max-width:680px;margin:0 auto}
.cx-cta h2{color:#fff;font-size:clamp(22px,3vw,32px);margin-bottom:24px}
.cx-cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .cx-who-grid{grid-template-columns:repeat(2,1fr)}
  .cx-rel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .cx-steps{grid-template-columns:1fr}
  .cx-scan-grid{grid-template-columns:1fr;gap:30px}
}
@media (max-width:680px){
  .cx-who-grid,.cx-rel-grid{grid-template-columns:1fr}
}