/* ============================================================
   cesuan.html 建站费用测算 · 烘焙复古风
   版式签名：H3 全宽横幅 + 汉字序号费用构成条 + 左表单右案例对比
   ============================================================ */

.a-deep{background:var(--cream-deep)}
.mt16{margin-top:16px}
.mt20{margin-top:20px}
.mt28{margin-top:28px}
.btn-row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.wf-flip{transform:scaleY(-1)}
.glow-gold{background:var(--gold);width:240px;height:240px;top:-70px;right:-50px}

/* ---------- H3 横幅 Hero ---------- */
.cs-hero{
  position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;
  padding:150px 0 80px;
}
.cs-hero .banner-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.cs-hero-mask{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(46,26,12,.82) 0%,rgba(59,35,19,.72) 55%,rgba(74,44,23,.55) 100%);
}
.cs-hero-in{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.crumb-onimg{justify-content:center;margin-bottom:20px}
.crumb-onimg a{color:var(--gold-bright)}
.crumb-onimg i{color:rgba(251,244,232,.35)}
.crumb-onimg span{color:rgba(251,244,232,.75)}
.cs-eyebrow{
  display:inline-block;padding:7px 18px;border-radius:999px;font-size:12px;letter-spacing:.22em;
  color:var(--gold-bright);background:rgba(233,180,76,.14);border:1px solid rgba(233,180,76,.5);margin-bottom:22px;
}
.cs-hero h1{color:var(--cream);font-size:clamp(28px,4.4vw,48px);line-height:1.32;margin-bottom:18px}
.cs-sub{color:rgba(251,244,232,.78);font-size:15.5px;max-width:560px;margin:0 auto 28px;line-height:1.95}

/* ---------- 费用构成（汉字序号） ---------- */
.cs-cost{display:flex;flex-direction:column;gap:18px}
.cs-cost-row{
  display:flex;gap:22px;align-items:flex-start;background:var(--paper);
  border:1px solid var(--line-soft);border-radius:16px;padding:26px 28px;box-shadow:var(--shadow-sm);
}
.cs-cost-no{
  flex:0 0 auto;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:18px;font-weight:700;color:var(--gold-deep);
  background:rgba(233,180,76,.14);border:1px solid rgba(233,180,76,.45);
}
.cs-cost-body h4{font-size:16.5px;margin-bottom:6px}
.cs-cost-body p{font-size:14px;line-height:1.9}

/* ---------- 表单勾选组 ---------- */
.cs-checks{display:flex;flex-wrap:wrap;gap:10px 18px;padding:4px 0}
.cs-check{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--brown-soft);cursor:pointer}
.cs-check input{accent-color:var(--gold-deep);width:15px;height:15px}
.cs-form-title{font-size:21px;margin-bottom:20px;text-align:center}
.cs-form-note{font-size:12px;color:var(--muted);text-align:center;margin-top:14px;line-height:1.7}

/* ---------- 右侧三案例 ---------- */
.cs-case{
  background:var(--paper);border-left:4px solid var(--gold);border-radius:0 14px 14px 0;
  padding:18px 22px;margin-bottom:14px;box-shadow:var(--shadow-sm);
}
.cs-case h4{font-size:15.5px;margin-bottom:6px}
.cs-case p{font-size:13.5px;line-height:1.85}

/* ---------- 响应式 ---------- */
@media(max-width:640px){
  .cs-cost-row{flex-direction:column;gap:12px}
}