/* ============================================================
   龙铭特种作业 · 发展历程 licheng.css
   签名 S05：135° 渐变分割，右上浅左下深，内容居右，
            装饰=超大描边序号 "05"
   ============================================================ */

/* ---------- 首屏 Hero S05 ---------- */
.hero{position:relative;min-height:94vh;display:flex;align-items:center;overflow:hidden;
  background:linear-gradient(135deg,#0b0b0c 0%,#0b0b0c 40%,#eaeae5 40.2%,#f4f4f0 100%)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3;
  -webkit-mask-image:linear-gradient(135deg,transparent 55%,#000 90%);
  mask-image:linear-gradient(135deg,transparent 55%,#000 90%)}
.hero-shade{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,11,12,.9),rgba(11,11,12,.35) 60%,transparent)}
.hero-num{position:absolute;right:4%;bottom:4%;font-size:clamp(160px,22vw,300px);font-weight:900;
  line-height:1;color:transparent;-webkit-text-stroke:1px rgba(11,11,12,.16);pointer-events:none;z-index:1}
.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,62px);line-height:1.18;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(135deg,rgba(255,255,255,.22),transparent);transform:skewX(-8deg)}
.hero-lead{max-width:540px;font-size:16.5px;color:var(--muted-dark);margin-bottom:32px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 时间轴（grid 三列：时间 / 轴 / 内容） ---------- */
.timeline-sec{background:var(--ink)}
.timeline{list-style:none;display:flex;flex-direction:column;gap:0;max-width:960px;margin-inline:auto}
.tl-row{display:grid;grid-template-columns:160px 44px 1fr;align-items:stretch}
.tl-time{padding:28px 24px 28px 0;text-align:right;display:flex;flex-direction:column;gap:4px}
.tl-year{font-size:22px;font-weight:900}
.tl-sub{font-size:12px;letter-spacing:.2em;color:var(--muted-dark)}
.tl-axis{position:relative;display:flex;justify-content:center}
.tl-axis::before{content:"";position:absolute;top:0;bottom:0;width:1px;background:var(--line)}
.tl-dot{flex:none;width:14px;height:14px;border-radius:50%;background:#fff;margin-top:34px;
  box-shadow:0 0 0 5px rgba(255,255,255,.12)}
.tl-body{padding:28px 0 44px 30px}
.tl-body h3{font-size:20px;font-weight:800;margin-bottom:10px}
.tl-body p{font-size:15px;color:var(--muted-dark);line-height:1.95;max-width:640px}
.tl-body a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- 阶段图文 ---------- */
.phase-sec{background:var(--ink-2)}
.phase-cols{display:grid;grid-template-columns:1fr 1.15fr;gap:48px;align-items:center}
.phase-img img{width:100%;height:400px;object-fit:cover;border-radius:12px}
.phase-text h3{font-size:20px;font-weight:800;margin:20px 0 10px}
.phase-text h3:first-child{margin-top:0}
.phase-text p{font-size:15px;color:var(--muted-dark);line-height:1.95}
.phase-text a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4)}

/* ---------- 底部 CTA ---------- */
.cta-sec{background:var(--ink)}
.cta-strip{background:var(--ink-2);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;border:1px solid var(--line)}
.cta-strip::before{content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  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}

/* ---------- 下一段路 ---------- */
.next-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px;max-width:960px}
.next-cols p{font-size:15px;color:var(--muted-dark);line-height:2;padding:26px 26px;
  background:var(--ink-2);border:1px solid var(--line);border-radius:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){}
@media (max-width:1024px){
  .phase-cols{grid-template-columns:1fr;gap:32px}
  .phase-img img{height:300px}
  .next-cols{grid-template-columns:1fr}
}
@media (max-width:768px){
  .hero{background:var(--ink)}
  .hero-inner{align-items:flex-start;text-align:left}
  .hero-inner .crumbs{justify-content:flex-start}
  .hero-cta{justify-content:flex-start}
  .hero-num{opacity:.4}
  .tl-row{grid-template-columns:90px 30px 1fr}
  .tl-time{padding-right:12px}
  .tl-year{font-size:16px}
  .tl-body{padding-left:18px}
  .cta-strip{padding:36px 26px}
}
@media (max-width:480px){
  .tl-row{grid-template-columns:70px 24px 1fr}
}

/* ============================================================
   R2 重构新增模块样式（仅本页使用）
   ============================================================ */

/* ---------- 时间轴那年那事 ---------- */
.tl-detail{margin-top:12px;padding:12px 16px;border-left:2px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.04);font-size:13.5px;color:var(--muted-dark);line-height:1.8}

/* ---------- 做事方式变没变 ---------- */
.compare-sec{background:var(--paper);color:var(--txt-on-light)}
.compare-sec .t-en{color:var(--muted-light)}
.compare-sec .sec-sub{color:var(--muted-light)}
.compare-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.compare-old,.compare-now{padding:36px 32px;border-radius:14px}
.compare-old{background:#fff;border:1px solid var(--line-dark)}
.compare-now{background:#0b0b0c;color:#f2f2ee;border:1px solid #0b0b0c}
.cmp-tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.18em;padding:4px 12px;border-radius:4px;margin-bottom:16px}
.compare-old .cmp-tag{background:#0b0b0c;color:#fff}
.compare-now .cmp-tag{background:#fff;color:#0b0b0c}
.compare-old h3,.compare-now h3{font-size:21px;font-weight:900;margin-bottom:14px}
.compare-old p{font-size:14.5px;color:var(--muted-light);line-height:1.95;margin-bottom:12px}
.compare-old p:last-child{margin-bottom:0}
.compare-now p{font-size:14.5px;color:var(--muted-dark);line-height:1.95;margin-bottom:12px}
.compare-now p:last-child{margin-bottom:0}

/* ---------- 专注三件事 ---------- */
.focus-sec{background:var(--ink)}
.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.focus-card{padding:36px 30px;border-radius:14px;background:var(--ink-2);border:1px solid var(--line)}
.fc-no{display:block;font-size:42px;font-weight:900;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.25);line-height:1;margin-bottom:18px}
.focus-card h3{font-size:20px;font-weight:800;margin-bottom:10px}
.focus-card p{font-size:14.5px;color:var(--muted-dark);line-height:1.9}

/* ---------- FAQ ---------- */
.faq-sec{background:var(--paper);color:var(--txt-on-light)}
.faq-sec .t-en{color:var(--muted-light)}
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line-dark);border-radius:12px;padding:0 24px}
.faq-item summary{cursor:pointer;list-style:none;font-size:16.5px;font-weight:800;padding:20px 0;position:relative;color:#17171a}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--muted-light)}
.faq-item[open] summary::after{content:"\2212"}
.faq-item p{font-size:14.5px;color:var(--muted-light);line-height:1.9;padding:0 0 20px}
.faq-item p a{color:#0b0b0c;border-bottom:1px solid rgba(11,11,12,.4)}

/* ---------- 响应式（R2 新增） ---------- */
@media (max-width:1080px){
  .compare-cols{grid-template-columns:1fr}
  .focus-grid{grid-template-columns:1fr}
}