/* ============================================================
   feiyong.css —— 服务费用页
   hero:有机柔化底缘;费用构成表;墨黑报价区间表;
   影响因素咬合;印章承诺;付款流程;FAQ。
   ============================================================ */

/* ---------- Hero:有机柔化底缘 ---------- */
.fy-hero{
  margin-top:var(--nav-h);
  background:
    linear-gradient(120deg, rgba(74,55,40,.88), rgba(28,26,23,.84)),
    url("../images/banner-about.jpg") center/cover;
  color:var(--cream); padding:100px 0 140px;
  clip-path:polygon(0 0, 100% 0, 100% 85%, 60% 95%, 40% 88%, 0 96%);
}
.fy-hero-in{ max-width:880px; }
.fy-keycap{ margin-bottom:22px; }
.fy-hero h1{ font-size:clamp(28px,4.2vw,50px); color:var(--cream); margin:12px 0 18px; }
.fy-sub{ font-size:16.5px; color:rgba(242,232,213,.88); max-width:740px; }
.fy-cta{ margin-top:28px; display:flex; flex-wrap:wrap; gap:14px; }
.fy-ghost{ border-color:rgba(242,232,213,.5); color:var(--cream); }
.fy-ghost:hover{ color:var(--tan); border-color:var(--tan); }

/* ---------- 通用 ---------- */
.fy-num{ font-family:var(--font-mono); font-size:13px; letter-spacing:4px; color:var(--brown-3); margin-bottom:10px; }
.fy-num-light{ font-family:var(--font-mono); font-size:13px; letter-spacing:4px; color:var(--tan); margin-bottom:10px; }
.fy-light-h{ color:var(--cream); }
.fy-table-wrap{ overflow-x:auto; }
.fy-tbl{ table-layout:fixed; }
.fy-tbl th,.fy-tbl td{ font-size:14px; }
.fy-tbl tbody tr:nth-child(even){ background:var(--paper-2); }
.fy-tbl a{ color:var(--brown-2); text-decoration:underline; }

/* ---------- 板块 2:构成表 ---------- */
.fy-comp{ padding:70px 0; background:var(--paper); }
.fy-comp h2{ font-size:clamp(22px,2.6vw,32px); margin-bottom:24px; }

/* ---------- 板块 3:报价区间(墨黑) ---------- */
.fy-range{ background:var(--ink); color:rgba(242,232,213,.88); padding:80px 0; }
.fy-range h2{ font-size:clamp(22px,2.6vw,32px); color:var(--cream); margin-bottom:24px; }
.fy-tbl-dark th{ background:var(--ink-3); color:var(--tan); border-color:rgba(242,232,213,.16); }
.fy-tbl-dark td{ border-color:rgba(242,232,213,.16); color:rgba(242,232,213,.86); }
.fy-tbl-dark a{ color:var(--tan); text-decoration:underline; }
.fy-range-note{ font-size:12.5px; color:rgba(242,232,213,.55); margin-top:14px; }

/* ---------- 板块 4:影响因素咬合 ---------- */
.fy-factor{ padding:70px 0; background:var(--paper-2); }
.fy-factor-grid{ display:grid; grid-template-columns:1.1fr 1fr; gap:50px; align-items:center; }
.fy-factor-txt h2{ font-size:clamp(22px,2.4vw,30px); margin-bottom:14px; }
.fy-factor-list{ margin:0; }
.fy-factor-list li{
  padding:10px 0 10px 24px; border-bottom:1px dashed var(--line); position:relative; color:var(--ink-2);
}
.fy-factor-list li::before{
  content:"·"; position:absolute; left:8px; color:var(--brown); font-weight:700; font-size:20px;
}
.fy-factor-list b{ color:var(--ink); }
.fy-factor-img img{
  border-radius:var(--r-l); box-shadow:var(--shadow);
  clip-path:polygon(0 0, 94% 6%, 100% 100%, 6% 94%);
}

/* ---------- 板块 5:承诺(墨黑印章) ---------- */
.fy-promise{ background:var(--ink); color:rgba(242,232,213,.88); padding:80px 0; }
.fy-promise h2{ font-size:clamp(22px,2.6vw,32px); color:var(--cream); margin-bottom:28px; }
.fy-promise-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.fy-promise-i{
  background:var(--ink-2); border:1px solid rgba(242,232,213,.14); border-radius:var(--r-m);
  padding:26px 22px; position:relative;
}
.fy-seal{
  position:absolute; top:-16px; right:18px; width:40px; height:40px; border-radius:50%;
  background:var(--brown); color:var(--cream); border:2px dashed var(--tan);
  display:flex; align-items:center; justify-content:center; font-family:var(--font-head);
}
.fy-promise-i h3{ color:var(--cream); font-size:17px; margin-bottom:8px; }
.fy-promise-i p{ font-size:14px; color:rgba(242,232,213,.72); }

/* ---------- 板块 6:付款流程 ---------- */
.fy-pay{ padding:70px 0; background:var(--paper); }
.fy-pay-grid{ display:grid; grid-template-columns:1fr 1.1fr; gap:50px; align-items:center; }
.fy-pay-img img{
  border-radius:var(--r-l); box-shadow:var(--shadow);
  clip-path:polygon(0 6%, 100% 0, 94% 100%, 0 92%);
}
.fy-pay-txt h2{ font-size:clamp(22px,2.4vw,30px); margin-bottom:14px; }
.fy-pay-list{ margin:0 0 12px; }
.fy-pay-list li{
  display:flex; gap:14px; padding:10px 0; border-bottom:1px dashed var(--line);
}
.fy-pay-list span{
  flex:none; width:28px; height:28px; border-radius:50%; background:var(--brown); color:var(--cream);
  font-family:var(--font-mono); display:flex; align-items:center; justify-content:center; font-size:13px;
}
.fy-pay-list h3{ font-size:16px; margin-bottom:2px; }
.fy-pay-list p{ font-size:14px; color:var(--ink-2); }
.fy-pay-note{ font-size:13px; color:var(--brown-3); }

/* ---------- 板块 7:FAQ ---------- */
.fy-faq{ padding:60px 0 80px; background:var(--paper-2); }
.fy-faq h2{ font-size:clamp(22px,2.6vw,32px); margin-bottom:24px; }
.fy-faq-list{ max-width:860px; }
.fy-faq-i{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--r-m);
  margin-bottom:12px; overflow:hidden;
}
.fy-faq-i summary{
  cursor:pointer; padding:15px 20px; font-weight:600; color:var(--ink);
  list-style:none; position:relative; padding-right:40px;
}
.fy-faq-i summary::-webkit-details-marker{ display:none; }
.fy-faq-i summary::after{
  content:"+"; position:absolute; right:18px; top:50%; transform:translateY(-50%);
  font-family:var(--font-mono); font-size:20px; color:var(--brown-3);
}
.fy-faq-i[open] summary::after{ content:"–"; }
.fy-faq-i p{ padding:0 20px 16px; color:var(--ink-2); font-size:14.5px; }
.fy-faq-i p a{ color:var(--brown-2); text-decoration:underline; }

/* ---------- 板块 8:CTA ---------- */
.fy-cta{
  background:
    linear-gradient(110deg, rgba(28,26,23,.92), rgba(74,55,40,.9)),
    url("../images/scene-hetong.jpg") center/cover;
  color:var(--cream); padding:80px 0; text-align:center;
  clip-path:polygon(0 10%, 100% 0, 100% 100%, 0 100%);
}
.fy-cta h2{ color:var(--cream); font-size:clamp(22px,3vw,34px); margin-bottom:14px; }
.fy-cta p{ max-width:680px; margin:0 auto 24px; color:rgba(242,232,213,.85); }
.fy-cta p a{ color:var(--tan); text-decoration:underline; }
.fy-cta-row{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; }
.fy-cta-links{ margin-top:22px; font-size:13.5px; color:rgba(242,232,213,.7); }
.fy-cta-links a{ color:var(--tan); text-decoration:underline; }

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .fy-factor-grid,.fy-pay-grid{ grid-template-columns:1fr; gap:30px; }
  .fy-promise-grid{ grid-template-columns:1fr; }
}
@media (max-width:640px){
  .fy-hero{ padding:70px 0 110px; }
}

/* ---------- 表格列宽(替代内联 style) ---------- */
.w24{ width:24%; }
.w44{ width:44%; }
.w32{ width:32%; }
.w30{ width:30%; }
.w28{ width:28%; }
.w42{ width:42%; }

/* ---------- 板块 6.5:砍价误区 ---------- */
.fy-mis{ padding:60px 0; background:var(--paper); }
.fy-mis h2{ font-size:clamp(22px,2.6vw,32px); margin-bottom:18px; }
.fy-mis p{ font-size:15.5px; line-height:1.9; color:var(--ink-2); margin-bottom:14px; max-width:880px; }
.fy-mis p b{ color:var(--ink); }
.fy-mis p a{ color:var(--brown-2); text-decoration:underline; }

/* ---------- 板块 6.8:服务档位(新增二轮) ---------- */
.fy-plan{ padding:60px 0; background:var(--paper-2); }
.fy-plan h2{ font-size:clamp(22px,2.6vw,32px); margin-bottom:18px; }
.fy-plan > p{ font-size:15.5px; line-height:1.9; color:var(--ink-2); margin-bottom:18px; max-width:880px; }
.fy-plan > p a{ color:var(--brown-2); text-decoration:underline; }
.fy-plan-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-bottom:18px; }
.fy-plan-i{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--r-l);
  padding:26px 22px; position:relative; border-top:4px solid var(--brown);
}
.fy-plan-i span{
  position:absolute; top:-14px; left:20px; background:var(--brown); color:var(--cream);
  font-family:var(--font-mono); font-size:12px; padding:4px 10px; border-radius:10px; letter-spacing:2px;
}
.fy-plan-i h3{ font-size:18px; margin:10px 0 10px; }
.fy-plan-i p{ font-size:14px; color:var(--ink-2); line-height:1.8; }
.fy-plan-price{ margin-top:12px; padding-top:12px; border-top:1px dashed var(--line); color:var(--brown-2) !important; font-weight:600; }
@media (max-width:1080px){ .fy-plan-grid{ grid-template-columns:1fr; } }