/* ============================================================
   龙铭特种作业 · 电子证照页 dianzizheng.css
   签名 S24：100° 对角渐变分割，内容居右，竖向看板条装饰
   ============================================================ */

.hero{position:relative;min-height:94vh;display:flex;align-items:center;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.38;transform:scale(1.05)}
.hero-fade{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,11,12,.3) 0%,rgba(11,11,12,.72) 45%,rgba(11,11,12,.96) 80%);
}
/* 竖向看板条装饰（右侧竖排长条色块） */
.hero-board{position:absolute;left:5%;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;pointer-events:none;opacity:.45}
.hero-board span{display:block;width:10px;height:120px;background:rgba(255,255,255,.18);border-radius:2px}
.hero-board span:nth-child(2){height:180px;background:rgba(255,255,255,.28)}
.hero-board span:nth-child(3){height:90px;background:rgba(255,255,255,.12)}
.hero-inner{position:relative;z-index:2;width:min(1200px,92%);margin-inline:auto;padding:150px 0 90px;display:flex;flex-direction:column;align-items:flex-end;text-align:right}
.hero-inner .crumbs{justify-content:flex-end;margin-bottom:20px}
.hero-flag{margin-bottom:22px}
.hero-title{font-size:clamp(34px,5.4vw,64px);line-height:1.16;font-weight:900;margin-bottom:20px}
.hero-title .hl{color:#fff;position:relative;white-space:nowrap}
.hero-title .hl::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:14px;z-index:-1;background:linear-gradient(100deg,rgba(255,255,255,.18),transparent)}
.hero-lead{max-width:560px;font-size:16.5px;color:var(--muted-dark);margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 电子证照是什么（图文） ---------- */
.what-sec{background:var(--ink)}
.what-sec .split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.what-sec .split-img img{width:100%;border-radius:14px;aspect-ratio:3/2;object-fit:cover}
.what-sec .split-txt .t-en{margin-bottom:8px}
.what-sec .split-txt h2{margin-bottom:18px}
.what-sec .split-txt p{font-size:15px;color:var(--muted-dark);line-height:1.9;margin-bottom:14px}

/* ---------- 怎么领怎么用 ---------- */
.section-alt{background:var(--ink-2)}
.use-track{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.use-node{padding:30px 24px;border-radius:12px;background:var(--ink);border:1px solid var(--line);transition:.35s var(--ease)}
.use-node:hover{transform:translateY(-5px);border-color:rgba(255,255,255,.3)}
.un-no{display:block;font-size:30px;font-weight:900;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.2);margin-bottom:16px}
.use-node h3{font-size:18px;font-weight:800;margin-bottom:8px}
.use-node p{font-size:14px;color:var(--muted-dark);line-height:1.8}
.use-note{margin-top:26px;padding:16px 22px;border-left:3px solid var(--paper);background:rgba(244,244,240,.05);border-radius:0 10px 10px 0;color:var(--muted-dark);font-size:14.5px;line-height:1.9}

/* ---------- 效力对比表 ---------- */
.diff-sec{background:var(--ink)}
.tbl-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--line)}
.diff-table{width:100%;border-collapse:collapse;background:var(--ink-2);min-width:600px;table-layout:fixed}
.diff-table col.w25{width:25%}
.diff-table col.w37{width:37%}
.diff-table col.w38{width:38%}
.diff-table th,.diff-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:14.5px}
.diff-table th{background:var(--ink-3);font-weight:800;color:#fff}
.diff-table td{color:var(--muted-dark)}
.diff-table tbody tr:last-child td{border-bottom:0}

/* ---------- 手机操作（浅底） ---------- */
.phone-sec{background:var(--paper);color:var(--txt-on-light)}
.phone-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.phone-img img{width:100%;border-radius:14px;aspect-ratio:16/10;object-fit:cover}
.phone-txt .tag{margin-bottom:18px}
.phone-txt h2{font-size:clamp(22px,2.8vw,34px);font-weight:900;margin-bottom:14px}
.phone-txt p{font-size:15px;color:var(--muted-light);line-height:1.9;margin-bottom:22px}
.phone-txt .light-link{color:#000;border-bottom:1px solid #000}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px}
.faq-item{background:var(--ink-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.3s}
.faq-item:hover{border-color:rgba(255,255,255,.28)}
.faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;font-size:15.5px;font-weight:700;color:#f2f2ee}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;font-weight:300;line-height:1;color:var(--muted-dark);transition:.3s;flex-shrink:0}
.faq-item[open] summary{color:#fff}
.faq-item[open] summary::after{transform:rotate(45deg);color:#fff}
.faq-item p{padding:0 24px 20px;font-size:14.5px;color:var(--muted-dark);line-height:1.9}
.faq-item p a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- 底部 CTA ---------- */
.cta-sec{background:var(--ink-2)}
.cta-strip{background:var(--ink);color:#fff;border-radius:18px;padding:50px 56px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-strip::before{content:"";position:absolute;left:40%;top:-60px;width:180px;height:180px;border:1px solid rgba(255,255,255,.12);border-radius:50%}
.cta-strip h2{font-size:clamp(22px,2.8vw,32px);font-weight:900;margin-bottom:8px}
.cta-strip p{color:var(--muted-dark);font-size:14.5px}
.cta-btns{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .use-track{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .what-sec .split{grid-template-columns:1fr;gap:28px}
  .phone-wrap{grid-template-columns:1fr;gap:24px}
}
@media (max-width:768px){
  .hero-inner{align-items:flex-start;text-align:left}
  .hero-inner .crumbs{justify-content:flex-start}
  .hero-cta{justify-content:flex-start}
  .hero-board{display:none}
  .use-track{grid-template-columns:1fr}
  .cta-strip{padding:36px 26px}
}