/* ============================================================
   liucheng.css · 建站流程页
   Hero 骨架：H16 阶梯错位
   母题落位：hero 横竖线交叉 + 右侧阶梯芯片；时间线横线切割 + Z 字左右错位
   ============================================================ */

/* ---------- 1. Hero（H16 阶梯错位） ---------- */
.lc-hero{background:var(--cream);padding:66px 0 84px;overflow:hidden}
.lc-hero-vline{top:0;bottom:0;left:24%;opacity:.25}
.lc-hero-xline{top:40%;opacity:.35}
.lc-hero-blob{width:160px;height:160px;background:var(--green);bottom:-50px;right:6%;opacity:.4}
.lc-hero-in{
  display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:center;position:relative;z-index:2;
}
.lc-hero-text .badge{margin-bottom:18px}
.lc-hero-text h1{margin-bottom:14px;font-weight:800}
.lc-hero-text h1 em{font-style:normal;color:var(--blue-ink)}
.lc-hero-text p{color:var(--muted);font-size:16px;margin-bottom:22px;max-width:560px}
.lc-hero-cta{display:flex;gap:12px;flex-wrap:wrap}

/* 阶梯错位芯片 */
.lc-hero-steps{position:relative;height:220px}
.lc-step-chip{
  position:absolute;background:#fff;border:2px solid var(--line);border-radius:14px;
  padding:12px 18px;font-weight:800;box-shadow:var(--shadow-sm);font-size:14.5px;
}
.lc-chip-a{top:8px;left:6%;border-color:var(--blue)}
.lc-chip-b{top:48px;left:32%;background:var(--yellow);border-color:var(--yellow-deep)}
.lc-chip-c{top:96px;left:8%;background:var(--green);border-color:var(--green-deep)}
.lc-chip-d{top:140px;left:42%;border-color:var(--blue-ink)}

/* ---------- 2. 七节点总览 ---------- */
.lc-overview{padding-top:8px}
.lc-overview-line{
  display:grid;grid-template-columns:repeat(7,1fr);gap:10px;
}
.lc-ov{
  background:#fff;border:2px solid var(--line);border-radius:14px;
  padding:16px 8px;text-align:center;
}
.lc-ov b{
  display:block;width:34px;height:34px;margin:0 auto 8px;border-radius:50%;
  background:var(--bg);color:var(--blue-ink);font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.lc-ov:nth-child(even){background:var(--cream)}
.lc-ov span{font-size:13px;font-weight:700;display:block}

/* ---------- 3. Z 字时间线 ---------- */
.lc-steps-sec{position:relative}
.lc-steps-xline{top:90px;opacity:.4}
.lc-timeline{
  position:relative;max-width:900px;margin:0 auto;padding:20px 0;
}
/* 中央竖线 */
.lc-timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;
  background:linear-gradient(180deg,var(--blue),var(--green));opacity:.4;
}
.lc-node{position:relative;width:50%;padding:18px 44px 18px 0;margin-bottom:26px}
.lc-node-r{margin-left:50%;padding:18px 0 18px 44px}
.lc-node-dot{
  position:absolute;top:30px;width:44px;height:44px;border-radius:50%;
  background:var(--yellow);border:3px solid #fff;color:var(--ink);font-weight:800;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm);z-index:3;
}
.lc-node-l .lc-node-dot{right:-22px}
.lc-node-r .lc-node-dot{left:-22px;background:var(--blue)}
.lc-node-card{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--shadow-sm);
}
.lc-node-l .lc-node-card{border-right:4px solid var(--yellow-deep)}
.lc-node-r .lc-node-card{border-left:4px solid var(--blue)}
.lc-node-card h3{font-size:18px;margin-bottom:8px}
.lc-node-card h3 i{
  font-style:normal;font-size:12.5px;color:var(--blue-ink);background:var(--bg);
  padding:3px 10px;border-radius:999px;margin-left:8px;font-weight:700;
}
.lc-node-card p{color:var(--muted);font-size:14.5px;margin-bottom:10px}
.lc-deliver li{font-size:13.5px;padding:4px 0;color:var(--ink)}
.lc-deliver li::before{content:"·";color:var(--green-deep);font-weight:800;margin-right:8px}
.lc-deliver a{text-decoration:underline}

/* ---------- 4. FAQ 网格 ---------- */
.lc-faq-sec{background:var(--bg)}
.lc-faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lc-q{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;
}
.lc-q summary{font-weight:700;cursor:pointer;list-style:none}
.lc-q summary::-webkit-details-marker{display:none}
.lc-q summary::before{content:"Q";color:#fff;background:var(--blue-ink);border-radius:8px;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;margin-right:10px;font-size:13px}
.lc-q p{margin-top:12px;color:var(--muted);font-size:14px}
.lc-q p a{text-decoration:underline}

/* ---------- 5. 承诺图文错位 ---------- */
.lc-promise-sec{position:relative;background:var(--cream)}
.lc-promise-vline{top:0;bottom:0;right:16%;opacity:.22}
.lc-promise{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;align-items:center;position:relative;z-index:2}
.lc-promise-img{position:relative}
.lc-promise-sticker{
  position:absolute;left:-12px;bottom:-16px;background:var(--green);
  padding:9px 18px;border-radius:999px;font-weight:800;font-size:13px;
  border:2px solid #fff;box-shadow:var(--shadow-sm);
}
.lc-promise-text h2{font-size:26px;margin:10px 0 16px}
.lc-promise-text h2 em{font-style:normal;color:var(--blue-deep)}
.lc-promises li{
  padding:11px 0 11px 26px;position:relative;border-bottom:1px dashed var(--line);font-size:14.5px;
}
.lc-promises li::before{
  content:"";position:absolute;left:0;top:16px;width:12px;height:12px;border-radius:50%;
  background:var(--yellow);
}
.lc-promises b{color:var(--blue-ink)}
.lc-promise-more{margin-top:14px;color:var(--muted);font-size:14px}
.lc-promise-more a{text-decoration:underline}

/* ---------- 6. CTA ---------- */
.lc-cta{
  text-align:center;background:linear-gradient(120deg,var(--blue-ink),#3A7DA6);
  border-radius:var(--r-lg);padding:48px 30px;color:#fff;
}
.lc-cta h2{color:#fff;margin-bottom:8px}
.lc-cta h2 em{font-style:normal;color:var(--yellow)}
.lc-cta p{color:#D6E9F4;margin-bottom:22px}
.lc-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:16px}
.lc-cta-tel{display:flex;gap:26px;justify-content:center;font-size:14px;color:#D6E9F4}
.lc-cta-tel span{color:#B6D6E6;margin-right:6px}
.lc-cta-tel a{color:#fff;font-weight:700}

/* ---------- 移动端 ---------- */
@media (max-width:960px){
  .lc-hero-in{grid-template-columns:1fr}
  .lc-hero-steps{height:auto;display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
  .lc-step-chip{position:static}
  .lc-overview-line{grid-template-columns:repeat(3,1fr);gap:8px}
  .lc-timeline::before{left:22px}
  .lc-node,.lc-node-r{width:100%;margin-left:0;padding:10px 0 10px 54px}
  .lc-node-l .lc-node-dot,.lc-node-r .lc-node-dot{left:0;right:auto}
  .lc-node-l .lc-node-card{border-right:2px solid var(--line);border-left:4px solid var(--yellow-deep)}
  .lc-node-r .lc-node-card{border-left:4px solid var(--blue)}
  .lc-faq-grid{grid-template-columns:1fr}
  .lc-promise{grid-template-columns:1fr}
}

/* ===== 补充模块：环节提醒（十字分割装饰） ===== */
.xt-sec{position:relative;overflow:hidden;}
.xt-xline{position:absolute;top:42px;left:0;right:0;height:2px;background:var(--blue);opacity:.22;}
.xt-vline{position:absolute;top:70px;bottom:70px;right:36px;width:2px;background:var(--blue);opacity:.22;}
.xt-notes{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:30px;}
.xt-note{background:#f4f9fc;border-radius:10px;padding:18px 20px;font-size:14px;line-height:1.85;color:#46586b;}
.xt-note b{color:#14394f;display:block;margin-bottom:6px;font-size:15px;}
@media (max-width:992px){.xt-notes{grid-template-columns:1fr;}}