/* ============================================================
   taocan-biaozhun.css · 标准版套餐页
   Hero 变体：H16 阶梯错位（两张图阶梯叠放）
   布局母题：十字分割非对称（v-line + x-line 交叉）
   ============================================================ */

/* ---------- 1. Hero：阶梯错位（H16） ---------- */
.bz-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);
  padding:40px 0 70px;
}
.bz-vline{left:48%;height:70%;top:80px;opacity:.3}
.bz-hero-in{position:relative;z-index:2}
.bz-hero-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;
}

/* 阶梯叠图 */
.bz-hero-media{position:relative;min-height:380px}
.bz-step{
  position:absolute;overflow:hidden;border-radius:var(--r-lg);
  box-shadow:var(--shadow);border:5px solid #fff;
}
.bz-step img{width:100%;height:100%;object-fit:cover}
.bz-step-a{
  width:62%;top:0;left:0;
}
.bz-step-a img{aspect-ratio:16/10}
.bz-step-b{
  width:55%;bottom:0;right:0;
}
.bz-step-b img{aspect-ratio:16/10}
.bz-step-badge{
  position:absolute;bottom:-18px;left:20px;
  background:var(--yellow);color:var(--ink);
  padding:8px 18px;border-radius:999px;
  font-size:13.5px;font-weight:800;white-space:nowrap;
  box-shadow:var(--shadow-sm);
}

.bz-hero-text .badge{margin-bottom:14px}
.bz-hero-title{
  font-size:clamp(28px,3.8vw,46px);font-weight:800;line-height:1.3;
  margin:10px 0 16px;
}
.bz-hero-title em{font-style:normal;color:var(--yellow-deep)}
.bz-hero-sub{color:var(--muted);font-size:16px;margin-bottom:22px}
.bz-hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.bz-hero-stats{
  display:flex;gap:30px;
  padding-top:20px;border-top:2px dashed var(--line);
}
.bz-hero-stats li{display:flex;flex-direction:column}
.bz-hero-stats b{font-size:26px;color:var(--blue-ink);line-height:1.2}
.bz-hero-stats span{font-size:13px;color:var(--muted)}

/* ---------- 2. 四大理由 ---------- */
.bz-reason-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.bz-reason{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);
  padding:30px 22px;position:relative;box-shadow:var(--shadow-sm);
}
.bz-reason-num{
  position:absolute;top:16px;right:20px;
  font-size:40px;font-weight:800;color:var(--blue);opacity:.35;line-height:1;
}
.bz-reason h3{font-size:17px;margin-bottom:10px;padding-right:40px}
.bz-reason p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 3. 交付清单：三栏 ---------- */
.bz-include-sec{position:relative;background:var(--cream)}
.bz-xline{top:20%}
.bz-include-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:30px;
}
.bz-include-col{
  background:#fff;border-radius:var(--r-lg);padding:26px;
  border-top:4px solid var(--blue);
  box-shadow:var(--shadow-sm);
}
.bz-include-col:nth-child(2){border-top-color:var(--green-deep)}
.bz-include-col:nth-child(3){border-top-color:var(--yellow-deep)}
.bz-include-col h3{
  font-size:18px;margin-bottom:14px;padding-bottom:10px;
  border-bottom:1px dashed var(--line);
}

/* ---------- 4. 档间对比：三卡 ---------- */
.bz-cmp-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;
}
.bz-cmp-card{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow-sm);position:relative;
}
.bz-cmp-active{
  border-color:var(--yellow-deep);
  background:linear-gradient(180deg,#FFF6D9 0%,#fff 50%);
  transform:scale(1.04);
}
.bz-cmp-flag{
  position:absolute;top:-14px;right:20px;
  background:var(--yellow-deep);color:var(--ink);
  padding:4px 14px;border-radius:999px;font-size:12px;font-weight:800;
}
.bz-cmp-card h3{font-size:19px}
.bz-cmp-price{font-weight:700;color:var(--blue-ink);font-size:14.5px}
.bz-cmp-card ul{flex:1;margin:10px 0 16px}
.bz-cmp-card ul li{
  padding:6px 0 6px 20px;position:relative;font-size:14px;color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.bz-cmp-card ul li::before{
  content:"";position:absolute;left:0;top:12px;
  width:8px;height:8px;border-radius:50%;background:var(--green-deep);
}
.bz-cmp-card .btn{justify-content:center}

/* ---------- 5. 时间轴 ---------- */
.bz-pay-sec{background:var(--bg)}
.bz-timeline{
  display:grid;grid-template-columns:repeat(6,1fr);gap:14px;
  position:relative;padding-top:20px;
}
.bz-timeline::before{
  content:"";position:absolute;top:34px;left:5%;right:5%;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--green),var(--yellow));
  border-radius:3px;opacity:.5;
}
.bz-tl-item{
  position:relative;padding:0 8px;text-align:center;
}
.bz-tl-dot{
  display:inline-flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:3px solid var(--blue-deep);
  font-size:12.5px;font-weight:800;color:var(--blue-ink);
  position:relative;z-index:2;margin-bottom:10px;
}
.bz-tl-item:nth-child(2) .bz-tl-dot{border-color:var(--green-deep)}
.bz-tl-item:nth-child(3) .bz-tl-dot{border-color:var(--yellow-deep)}
.bz-tl-item:nth-child(4) .bz-tl-dot{border-color:var(--green-deep)}
.bz-tl-item:nth-child(5) .bz-tl-dot{border-color:var(--blue-deep)}
.bz-tl-item:nth-child(6) .bz-tl-dot{border-color:var(--yellow-deep)}
.bz-tl-item b{display:block;font-size:14px;margin-bottom:4px}
.bz-tl-item p{font-size:12.5px;color:var(--muted);line-height:1.6}
.bz-pay-note{
  margin-top:26px;text-align:center;font-size:14.5px;color:var(--muted);
  padding:14px;background:var(--cream);border-radius:var(--r-md);
  border-left:3px solid var(--yellow-deep);
}

/* ---------- 4.5. 客户案例小例子 ---------- */
.bz-case{
  background:var(--cream);border-radius:var(--r-lg);padding:36px;
  border-left:4px solid var(--green-deep);
  max-width:860px;margin:0 auto;
}
.bz-case p{color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:12px}
.bz-case p:last-child{margin-bottom:0;font-weight:600;color:var(--ink)}

/* ---------- 6. FAQ ---------- */
.bz-faq-list{
  max-width:840px;margin:0 auto;
  display:flex;flex-direction:column;gap:12px;
}
.bz-faq-item{
  background:#fff;border:2px solid var(--line);border-radius:var(--r-md);
  padding:0 22px;
}
.bz-faq-item[open]{border-color:var(--blue-deep)}
.bz-faq-item summary{
  cursor:pointer;list-style:none;
  padding:16px 0;font-weight:700;font-size:15.5px;
  position:relative;padding-right:36px;
}
.bz-faq-item summary::-webkit-details-marker{display:none}
.bz-faq-item summary::after{
  content:"▾";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  color:var(--blue-deep);font-size:16px;transition:transform .25s ease;
}
.bz-faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.bz-faq-item p{padding:0 0 18px;color:var(--muted);font-size:14.5px}
.bz-faq-item p a{color:var(--blue-ink);text-decoration:underline}

/* ---------- 7. CTA ---------- */
.bz-cta-sec{
  background:linear-gradient(120deg,var(--blue-ink) 0%,#1F5070 100%);
}
.bz-cta-in{
  display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;
}
.bz-cta-text .sec-title{color:#fff;margin-bottom:12px}
.bz-cta-text .sec-title em{color:var(--yellow)}
.bz-cta-text>p{color:#C4DFEC;margin-bottom:20px;max-width:600px}
.bz-cta-btns{display:flex;gap:12px;flex-wrap:wrap}
.bz-cta-card{
  background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.2);
  border-radius:var(--r-lg);padding:26px;
}
.bz-cta-card h3{color:#fff;margin-bottom:14px}
.bz-cta-card ul{display:flex;flex-direction:column;gap:10px}
.bz-cta-card li{display:flex;justify-content:space-between;font-size:15px;color:#C4DFEC}
.bz-cta-card li span{color:var(--yellow);font-weight:700}
.bz-cta-card li a{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1020px){
  .bz-hero-grid{grid-template-columns:1fr;gap:60px}
  .bz-hero-media{min-height:340px}
  .bz-reason-grid{grid-template-columns:repeat(2,1fr)}
  .bz-include-grid{grid-template-columns:1fr}
  .bz-cmp-grid{grid-template-columns:1fr;gap:18px}
  .bz-cmp-active{transform:none}
  .bz-timeline{grid-template-columns:repeat(3,1fr);gap:24px}
  .bz-timeline::before{display:none}
  .bz-cta-in{grid-template-columns:1fr}
}
@media (max-width:640px){
  .bz-reason-grid{grid-template-columns:1fr}
  .bz-timeline{grid-template-columns:repeat(2,1fr)}
}