/* ============================================================
   龙铭特种作业 · 资讯详情页 show.css
   对角签名：S21 · 152° 渐变分割 + 粗颗粒噪点装饰
   ============================================================ */

/* ---------- 文章头部（152° 对角渐变 + 噪点） ---------- */
.hero{
  position:relative;padding:150px 0 66px;overflow:hidden;background:var(--ink);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(152deg,rgba(244,244,240,.05) 0%,rgba(244,244,240,.02) 45%,rgba(11,11,12,0) 70%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;
  mask-image:linear-gradient(152deg,#000 0%,#000 40%,transparent 85%);
}
.hero-inner{position:relative;z-index:2;width:min(1200px,92%);margin-inline:auto}
.crumbs{margin-bottom:20px}
.hero-title{font-size:clamp(28px,4vw,46px);font-weight:900;line-height:1.3;max-width:860px;margin-bottom:18px}
.hero-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hm-time{font-size:14px;color:var(--muted-dark);letter-spacing:.05em}
.hm-tag{
  font-size:12px;letter-spacing:.16em;color:var(--muted-dark);border:1px solid var(--line);
  border-radius:999px;padding:5px 14px;
}

/* ---------- 正文区 ---------- */
.art-sec{background:var(--ink)}
.art-wrap{display:grid;grid-template-columns:1fr 330px;gap:34px;align-items:start}
.art-main{min-width:0}
.article{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.article-hero img{width:100%;height:auto;object-fit:cover}
.article-body{padding:36px 40px 44px;font-size:16px;line-height:2.05;color:#d9d9d4}
.article-body p{margin-bottom:18px}
.article-body h2,.article-body h3{color:#fff;margin:26px 0 14px;line-height:1.4}
.article-body h2{font-size:22px}
.article-body h3{font-size:18px}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:18px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:6px}

/* ---------- 相关新闻 ---------- */
.rel-block{margin-top:34px;background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:30px 34px}
.rel-head{display:flex;align-items:baseline;gap:14px;margin-bottom:18px}
.rel-head .t-en{font-size:11px;letter-spacing:.3em;color:var(--muted-dark);text-transform:uppercase}
.rel-head h2{font-size:20px;font-weight:800}
.rel-list{display:flex;flex-direction:column}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.08);transition:.25s;
}
.rel-item:last-child{border-bottom:0}
.rel-item:hover{padding-left:10px}
.ri-title{font-size:15px;color:#d9d9d4}
.rel-item:hover .ri-title{color:#fff}
.ri-time{flex:none;font-size:13px;color:#777}

/* ---------- 侧栏 ---------- */
.art-aside{display:flex;flex-direction:column;gap:18px;position:sticky;top:calc(var(--header-h) + 24px)}
.na-box{background:var(--ink-2);border:1px solid var(--line);border-radius:10px;padding:22px}
.na-box h3{font-size:15px;font-weight:800;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.na-box a{display:block;font-size:14px;color:var(--muted-dark);padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.06);transition:.25s}
.na-box a:hover{color:#fff;padding-left:8px}
.side-news{display:flex;flex-direction:column;gap:12px}
.sn-item{display:flex;gap:12px;align-items:center;padding:8px;border-radius:8px;transition:.3s var(--ease)}
.sn-item:hover{background:rgba(255,255,255,.05)}
.sn-thumb{flex:none;width:80px;height:60px;overflow:hidden;border-radius:6px;background:#26262a}
.sn-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.sn-item:hover .sn-thumb img{transform:scale(1.1)}
.sn-info{display:flex;flex-direction:column;gap:4px;min-width:0}
.sn-title{font-size:13.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#d9d9d4}
.sn-item:hover .sn-title{color:#fff}
.sn-time{font-size:12px;color:#777}
.na-tel{
  display:block;text-align:center;padding:22px;border-radius:10px;font-size:14px;color:var(--muted-dark);
  background:linear-gradient(152deg,#1c1c1f,#0e0e0f);border:1px solid var(--line);transition:.35s var(--ease);
}
.na-tel b{display:block;font-size:22px;color:#fff;margin-top:6px;letter-spacing:.04em}
.na-tel:hover{border-color:#fff}

/* ---------- 阅后服务（静态导引） ---------- */
.readmore{margin-top:30px;background:var(--paper);color:var(--txt-on-light);border-radius:14px;padding:36px 38px;position:relative;overflow:hidden}
.readmore::after{
  content:"";position:absolute;right:-46px;bottom:-46px;width:150px;height:150px;border-radius:50%;
  border:16px solid rgba(11,11,12,.05);
}
.readmore h2{font-size:22px;font-weight:900;margin-bottom:10px}
.readmore>p{font-size:14.5px;line-height:1.95;color:#4a4a46;max-width:680px;margin-bottom:12px}
.readmore>p:last-of-type{margin-bottom:24px}
.readmore-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative;z-index:1}
.rm-card{
  display:flex;flex-direction:column;gap:8px;padding:22px 18px;border-radius:10px;background:#fff;
  border:1px solid var(--line-dark);transition:.35s var(--ease);
}
.rm-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(11,11,12,.1);border-color:rgba(11,11,12,.3)}
.rm-ic{width:42px;height:42px;border-radius:8px;background:var(--paper-2);display:flex;align-items:center;justify-content:center;color:#17171a}
.rm-ic svg{width:22px;height:22px}
.rm-name{font-size:15.5px;font-weight:800;color:#17171a}
.rm-desc{font-size:12.5px;line-height:1.7;color:#5c5c58}
.rm-note{margin-top:20px;font-size:13px;color:#6a6a64;line-height:1.85}

/* ---------- 延伸阅读引导（静态） ---------- */
.rel-help{margin-top:34px;background:var(--ink-2);border:1px solid var(--line);border-radius:14px;padding:30px 34px}
.rel-help .t-en{font-size:11px;letter-spacing:.3em;color:var(--muted-dark);text-transform:uppercase;display:block;margin-bottom:8px}
.rel-help h2{font-size:20px;font-weight:800;margin-bottom:10px}
.rel-help p{font-size:14px;color:var(--muted-dark);margin-bottom:14px}
.rel-help .rh-note{margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.14);font-size:13px;line-height:1.8;margin-bottom:0}
.rh-links{display:flex;flex-direction:column}
.rh-links a{
  padding:12px 14px;font-size:14.5px;color:#d9d9d4;border-left:2px solid rgba(255,255,255,.16);
  transition:.25s;border-bottom:1px dashed rgba(255,255,255,.08);
}
.rh-links a:last-child{border-bottom:0}
.rh-links a:hover{color:#fff;border-left-color:#fff;padding-left:20px;background:rgba(255,255,255,.04)}

/* ---------- 侧栏读后提示 ---------- */
.na-read-tip p{font-size:13.5px;color:var(--muted-dark);line-height:1.85;margin:0}

/* ---------- 读后常见疑问（深底） ---------- */
.art-faq{background:var(--ink);padding-top:0}
.art-faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px}
.af-item{background:var(--ink-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:.35s var(--ease)}
.af-item[open]{border-color:rgba(255,255,255,.35)}
.af-item summary{
  list-style:none;cursor:pointer;padding:20px 26px;font-size:16px;font-weight:700;color:#fff;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.af-item summary::-webkit-details-marker{display:none}
.af-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--muted-dark);transition:.3s var(--ease);flex:none}
.af-item[open] summary::after{content:"–"}
.af-body{padding:0 26px 22px}
.af-body p{font-size:14.5px;color:var(--muted-dark);line-height:1.9}
.af-body a{color:#fff;text-decoration:underline;text-underline-offset:3px}
.af-tip{margin-top:22px;padding:18px 24px;font-size:14px;line-height:1.9;color:var(--muted-dark);background:var(--ink-2);border:1px solid var(--line);border-left:3px solid rgba(255,255,255,.5);border-radius:8px;max-width:860px}

/* ---------- 底部 CTA ---------- */
.cta-sec{background:var(--ink);padding-top:0}
.cta-strip{
  background:var(--paper);color:var(--txt-on-light);border-radius:18px;padding:54px 60px;
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  border:1px solid rgba(11,11,12,.12);
}
.cta-strip h2{font-size:clamp(22px,2.8vw,32px);font-weight:900;margin-bottom:8px}
.cta-strip p{color:#5c5c58;font-size:14.5px}
.cta-btns{display:flex;gap:14px;position:relative;z-index:1}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .art-wrap{grid-template-columns:1fr}
  .art-aside{position:static}
  .readmore-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .article-body{padding:26px 22px 32px}
  .rel-block{padding:24px 20px}
  .readmore{padding:28px 22px}
  .readmore-grid{grid-template-columns:1fr}
  .cta-strip{padding:38px 28px}
}