/* ============================================================
   zhengshu-chaxun.css —— 证书查询验证
   技法:右弧 hero + 查询渠道三卡 + 竖向时间轴(grid三列对齐) +
   图文咬合 + 墨黑防骗 + 折叠 FAQ
   ============================================================ */

/* ---------- Hero:右侧大弧收口 ---------- */
.cx-hero{
  margin-top:var(--nav-h);
  background:
    linear-gradient(95deg, rgba(28,26,23,.82) 0%, rgba(74,55,40,.55) 70%),
    url("../images/banner-zhengce.jpg") center/cover no-repeat;
  color:var(--cream);
  padding:88px 0 110px;
  /* 右下角大弧 */
  clip-path:ellipse(120% 100% at 0 0);
}
.cx-hero-in{ max-width:800px; }
.cx-hero .crumb{ color:rgba(242,232,213,.72); margin-bottom:18px; }
.cx-hero .crumb a{ color:rgba(242,232,213,.85); }
.cx-keycap{ background:rgba(242,232,213,.12); border-color:var(--tan); color:var(--cream); margin-bottom:20px; }
.cx-hero h1{ color:var(--cream); font-size:38px; line-height:1.3; margin-bottom:20px; }
.cx-sub{ font-size:16.5px; line-height:1.9; color:rgba(242,232,213,.88); max-width:720px; }
.cx-cta{ margin-top:30px; display:flex; flex-wrap:wrap; gap:14px; }
.cx-ghost{ border-color:var(--tan); color:var(--cream); }
.cx-ghost:hover{ background:rgba(242,232,213,.1); color:var(--cream); border-color:var(--cream); }

/* ---------- 板块 2:查询渠道 ---------- */
.cx-ch{ padding:80px 0; background:var(--paper); }
.cx-secno{ font-family:var(--font-mono); letter-spacing:2px; color:var(--brown-3); font-size:13px; margin-bottom:10px; }
.cx-ch h2{ font-size:28px; margin-bottom:12px; }
.cx-ch-lead{ max-width:740px; margin-bottom:28px; color:var(--ink-2); }
.cx-ch-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.cx-ch-i{ background:var(--paper-2); border:1px solid var(--line); border-radius:14px; padding:26px 22px; box-shadow:var(--shadow-sm); }
.cx-ch-tag{ display:inline-block; font-family:var(--font-mono); font-size:12px; color:var(--cream); background:var(--brown); padding:4px 12px; border-radius:6px; margin-bottom:14px; }
.cx-ch-i h3{ font-size:18px; margin-bottom:10px; }
.cx-ch-i p{ font-size:14px; color:var(--ink-2); }

/* ---------- 板块 3:竖向时间轴 ---------- */
.cx-step{ padding:80px 0; background:var(--paper-2); }
.cx-step h2{ font-size:28px; margin-bottom:34px; }
.cx-timeline{ max-width:880px; }
.cx-node{
  display:grid; grid-template-columns:110px 40px 1fr; column-gap:10px;
  align-items:stretch; margin-bottom:8px;
}
.cx-t-time{
  font-family:var(--font-mono); font-size:13px; color:var(--brown-2);
  justify-self:end; padding-top:22px; letter-spacing:1px;
}
.cx-t-axis{ position:relative; display:flex; justify-content:center; }
.cx-t-axis::before{
  content:""; position:absolute; top:0; bottom:0; width:2px; background:var(--line-2);
}
.cx-dot{
  width:16px; height:16px; border-radius:50%; background:var(--brown);
  border:3px solid var(--paper-2); box-shadow:0 0 0 2px var(--brown-3);
  align-self:start; margin-top:22px; position:relative; z-index:1;
}
.cx-t-body{
  background:var(--paper); border:1px solid var(--line); border-radius:12px;
  padding:18px 22px; margin-bottom:18px;
}
.cx-t-body h3{ font-size:17px; margin-bottom:8px; }
.cx-t-body p{ font-size:14px; color:var(--ink-2); }
.cx-inlink{ color:var(--brown-2); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 板块 4:要素解读 ---------- */
.cx-read{ padding:70px 0; background:var(--paper); }
.cx-read-grid{ display:grid; grid-template-columns:1fr 1.1fr; gap:48px; align-items:center; }
.cx-read-img img{ border-radius:16px; box-shadow:var(--shadow); clip-path:polygon(0 0,96% 0,100% 100%,4% 100%); }
.cx-read-txt h2{ font-size:26px; margin:8px 0 16px; }
.cx-read-txt p{ margin-bottom:14px; color:var(--ink-2); }

/* ---------- 板块 5:墨黑防骗 ---------- */
.cx-warn{ background:var(--ink); color:var(--cream); padding:80px 0; }
.cx-num-light{ font-family:var(--font-mono); letter-spacing:3px; color:var(--tan); font-size:13px; }
.cx-light-h{ color:var(--cream); font-size:29px; margin:8px 0 28px; }
.cx-warn-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.cx-warn-i{
  background:var(--ink-2); border:1px solid #3A342C; border-radius:12px; padding:22px 20px;
  display:flex; flex-direction:column; gap:10px;
}
.cx-warn-i b{ color:var(--tan); font-family:var(--font-head); font-size:16px; }
.cx-warn-i span{ color:rgba(242,232,213,.76); font-size:13.5px; }
.cx-warn-note{ margin-top:24px; font-size:13px; color:var(--tan); }
.cx-warn .cx-inlink{ color:var(--tan); }

/* ---------- 板块 6:FAQ ---------- */
.cx-faq{ padding:80px 0; background:var(--paper-3); }
.cx-faq h2{ font-size:28px; margin-bottom:26px; }
.cx-faq-list{ max-width:860px; }
.cx-faq-i{ border:1px solid var(--line-2); border-radius:12px; margin-bottom:12px; background:var(--paper); overflow:hidden; }
.cx-faq-i summary{ cursor:pointer; padding:16px 20px; font-weight:700; color:var(--ink); font-family:var(--font-head); list-style:none; position:relative; padding-right:40px; }
.cx-faq-i summary::-webkit-details-marker{ display:none; }
.cx-faq-i summary::after{ content:"+"; position:absolute; right:18px; top:50%; transform:translateY(-50%); font-family:var(--font-mono); font-size:20px; color:var(--brown-3); }
.cx-faq-i[open] summary::after{ content:"–"; }
.cx-faq-i p{ padding:0 20px 18px; color:var(--ink-2); font-size:14.5px; }
.cx-faq-i a{ color:var(--brown-2); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 板块 7:CTA ---------- */
.cx-cta{
  background:
    linear-gradient(120deg, rgba(74,55,40,.9), rgba(28,26,23,.88)),
    url("../images/scene-bangong.jpg") center/cover no-repeat;
  color:var(--cream); text-align:center; padding:80px 0;
}
.cx-cta h2{ color:var(--cream); font-size:29px; margin-bottom:14px; }
.cx-cta p{ color:rgba(242,232,213,.85); max-width:620px; margin:0 auto 26px; }
.cx-cta-row{ display:flex; justify-content:center; flex-wrap:wrap; gap:14px; }
.cx-cta-links{ margin-top:24px; font-size:13.5px; color:rgba(242,232,213,.72); }
.cx-cta-links a{ color:var(--tan); }

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .cx-hero{ clip-path:none; padding:70px 0 60px; }
  .cx-hero h1{ font-size:29px; }
  .cx-ch-row,.cx-warn-row{ grid-template-columns:1fr; }
  .cx-read-grid{ grid-template-columns:1fr; gap:28px; }
  .cx-node{ grid-template-columns:1fr; }
  .cx-t-time{ justify-self:start; padding-top:0; margin-bottom:4px; }
  .cx-t-axis{ display:none; }
}
@media (max-width:640px){
  .cx-hero h1{ font-size:24px; }
  .cx-ch h2,.cx-step h2,.cx-faq h2,.cx-light-h{ font-size:22px; }
}

/* 批量核验 */
.cx-batch{padding:60px 0;background:var(--paper-2);}
.cx-batch h2{font-size:26px;margin-bottom:14px;}
.cx-batch>div>p{margin-bottom:14px;color:var(--ink-2);}
.cx-batch-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:20px;}
.cx-b-i{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:8px;}
.cx-b-i b{font-family:var(--font-head);color:var(--ink);}
.cx-b-i span{font-size:13.5px;color:var(--ink-2);}
@media(max-width:1080px){.cx-batch-row{grid-template-columns:1fr;}}

/* 操作步骤 */
.cx-step{padding:60px 0;background:var(--paper);}
.cx-step h2{font-size:26px;margin-bottom:16px;}
.cx-step>div>p{margin-bottom:14px;color:var(--ink-2);}
.cx-step b{color:var(--ink);}

.cx-fail{padding:60px 0;background:var(--paper-2);}
.cx-fail h2{font-size:26px;margin-bottom:16px;}
.cx-fail>div>p{margin-bottom:14px;color:var(--ink-2);}

.cx-who{padding:60px 0;background:var(--paper);}
.cx-who h2{font-size:26px;margin-bottom:16px;}
.cx-who>div>p{margin-bottom:14px;color:var(--ink-2);}

.cx-zhang{padding:60px 0;background:var(--paper-2);}
.cx-zhang h2{font-size:26px;margin-bottom:16px;}
.cx-zhang>div>p{margin-bottom:14px;color:var(--ink-2);}