/* ============================================================
   龙铭特种作业 · 备考资料 beikao.css
   签名 S13：110° 对角渐变，内容居左，装饰=超大数字水印
   ============================================================ */

/* ---------- 首屏 S13 ---------- */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:70% center;opacity:.5;transform:scale(1.04)}
.hero-fade{
  position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(11,11,12,.96) 0%,rgba(11,11,12,.8) 45%,rgba(11,11,12,.4) 75%,rgba(11,11,12,.9) 100%);
}
.hero-watermark{
  position:absolute;right:-1%;top:50%;transform:translateY(-50%);
  font-size:clamp(180px,30vw,420px);font-weight:900;line-height:1;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.16);
  user-select:none;pointer-events:none;
}
.hero-inner{position:relative;z-index:3;padding:150px 0 80px;max-width:600px}
.hero-crumbs{margin-bottom:22px}
.hero-title{font-size:clamp(32px,5vw,56px);line-height:1.2;font-weight:900;margin-bottom:20px}
.hero-title .hl{color:#fff}
.hero-lead{max-width:520px;font-size:16.5px;color:var(--muted-dark);margin-bottom:30px;line-height:1.9}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 备考三阶段 ---------- */
.phase-sec{background:var(--ink)}
.phase-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:phase}
.phase-card{
  position:relative;padding:36px 28px;border-radius:14px;background:var(--ink-2);
  border:1px solid var(--line);transition:.4s var(--ease);
}
.phase-card:hover{transform:translateY(-6px);border-color:rgba(255,255,255,.35)}
.ph-tag{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;margin-bottom:20px;
  color:#000;background:#fff;border-radius:999px;padding:6px 16px;
}
.phase-card h3{font-size:24px;font-weight:900;margin-bottom:12px}
.phase-card p{font-size:14.5px;color:var(--muted-dark);line-height:1.9}
.phase-card a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- 左右图文（理论/实操） ---------- */
.section-alt{background:var(--ink-2)}
.split-wrap{display:grid;grid-template-columns:1fr 1.1fr;gap:52px;align-items:center}
.split-wrap.rev{grid-template-columns:1.1fr 1fr}
.split-wrap.rev .split-media{order:2}
.split-media img{border-radius:14px;width:100%;height:340px;object-fit:cover;box-shadow:0 24px 48px rgba(0,0,0,.4)}
.split-body .sec-title{margin-bottom:18px}
.split-body p{font-size:15px;color:var(--muted-dark);line-height:1.95;margin-bottom:13px}

/* ---------- 资料清单 ---------- */
.mate-sec{background:var(--paper);color:var(--txt-on-light)}
.mate-sec .t-en{color:var(--muted-light)}
.mate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.mate-item{
  padding:22px 24px;border:1px solid var(--line-dark);border-radius:10px;background:#fff;
  display:flex;flex-direction:column;gap:6px;transition:.3s;
}
.mate-item:hover{border-color:#000;transform:translateY(-3px)}
.mate-item b{font-size:16px;font-weight:800;color:#000}
.mate-item span{font-size:13px;color:var(--muted-light)}

/* ---------- 时间安排 ---------- */
.time-sec{background:var(--ink)}
.time-wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:52px;align-items:center}
.time-text .sec-title{margin-bottom:26px}
.time-row{display:flex;gap:20px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.tr-wk{
  flex:none;font-size:13px;font-weight:800;letter-spacing:.08em;color:#000;
  background:#fff;border-radius:6px;padding:8px 14px;text-align:center;min-width:118px;
}
.time-row p{font-size:14.5px;color:var(--muted-dark);line-height:1.8}
.time-lead{font-size:15px;color:var(--muted-light);line-height:1.9;margin-bottom:20px}
.time-media img{border-radius:14px;width:100%;height:320px;object-fit:cover}
.time-foot{margin-top:30px;font-size:14.5px;color:var(--muted-dark)}
.time-foot a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- FAQ ---------- */
.faq-sec{background:var(--ink-2)}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{border:1px solid var(--line);border-radius:10px;background:var(--ink-3);padding:20px 26px}
.faq-item summary{font-size:16.5px;font-weight:800;cursor:pointer;list-style:none;position:relative;padding-right:30px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:#fff;transition:.3s}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item p{margin-top:12px;font-size:14.5px;color:var(--muted-dark);line-height:1.9}
.faq-more{margin-top:24px;font-size:14.5px;color:var(--muted-dark)}
.faq-more a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- CTA ---------- */
.cta-sec{background:var(--ink)}
.cta-strip{
  background:var(--paper);color:#0b0b0c;border-radius:18px;padding:48px 54px;
  display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center;
}
.cta-strip h2{font-size:clamp(22px,2.6vw,30px);font-weight:900;margin-bottom:10px}
.cta-strip p{color:var(--muted-light);font-size:14.5px}
.cta-form .form-item input{background:#fff;border-color:var(--line-dark);color:#000}
.cta-form .form-item input::placeholder{color:#9c9c96}
.cta-form .btn{grid-column:1/-1;background:#0b0b0c;color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .phase-grid{grid-template-columns:1fr}
  .mate-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){
  .split-wrap,.split-wrap.rev,.time-wrap{grid-template-columns:1fr;gap:28px}
  .split-wrap.rev .split-media{order:0}
  .cta-strip{grid-template-columns:1fr;padding:36px 30px}
}
@media (max-width:768px){
  .mate-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
  .tr-wk{min-width:0;width:100%}
  .time-row{flex-direction:column;gap:10px}
}

/* ---------- 理论机考题型举例表 ---------- */
.qtype-wrap{margin-top:64px;border-top:1px dashed var(--line);padding-top:40px}
.qtype-title{font-size:clamp(20px,2.2vw,26px);font-weight:900;margin-bottom:10px}
.qtype-lead{font-size:14.5px;color:var(--muted-dark);line-height:1.9;max-width:820px;margin-bottom:22px}
.qtype-table{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--ink-3);
}
.qt-row{
  display:grid;grid-template-columns:110px 1.4fr 1fr;gap:20px;align-items:start;
  padding:20px 24px;border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.85;
}
.qt-row:last-child{border-bottom:0}
.qt-kind{
  display:inline-block;justify-self:start;font-size:12px;font-weight:800;letter-spacing:.12em;
  color:#000;background:#fff;border-radius:4px;padding:4px 10px;
}
.qt-head{background:var(--ink-2);font-weight:800;font-size:13.5px;letter-spacing:.05em}
.qt-head span{color:#fff}
.qt-row span:nth-child(2){color:var(--txt-on-dark)}
.qt-row span:nth-child(3){color:var(--muted-dark)}
.qtype-note{margin-top:20px;font-size:14px;color:var(--muted-dark);line-height:1.9;max-width:820px}
@media (max-width:768px){
  .qt-row{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .qt-head{display:none}
}