/* ============================================================
   toubiao-jiafen.css —— 投标评分配置
   技法:椭圆弧底 hero(大圆角) + 两栏咬合 + 墨黑大表 +
   键盘键帽行 + 错位案例 + 折叠 FAQ
   ============================================================ */

/* ---------- Hero:椭圆弧底 ---------- */
.jf-hero{
  margin-top:var(--nav-h);
  background:
    linear-gradient(105deg, rgba(74,55,40,.9), rgba(28,26,23,.78)),
    url("../images/banner-toubiao.jpg") center/cover no-repeat;
  color:var(--cream);
  padding:90px 0 130px;
  /* 椭圆弧底:左右底部大圆角,与 F1 的斜切区分 */
  border-radius:0 0 48% 52% / 0 0 90px 90px;
}
.jf-hero-in{ max-width:840px; }
.jf-hero .crumb{ color:rgba(242,232,213,.72); margin-bottom:18px; }
.jf-hero .crumb a{ color:rgba(242,232,213,.85); }
.jf-keycap{ background:rgba(242,232,213,.12); border-color:var(--tan); color:var(--cream); margin-bottom:20px; }
.jf-hero h1{ color:var(--cream); font-size:40px; line-height:1.3; margin-bottom:20px; }
.jf-sub{ font-size:16.5px; line-height:1.9; color:rgba(242,232,213,.88); max-width:740px; }
.jf-cta{ margin-top:30px; display:flex; flex-wrap:wrap; gap:14px; }
.jf-ghost{ border-color:var(--tan); color:var(--cream); }
.jf-ghost:hover{ background:rgba(242,232,213,.1); color:var(--cream); border-color:var(--cream); }

/* ---------- 板块 2:办法解读 ---------- */
.jf-read{ padding:80px 0; background:var(--paper); }
.jf-read-grid{ display:grid; grid-template-columns:1.15fr 1fr; gap:48px; align-items:center; }
.jf-secno{ font-family:var(--font-mono); letter-spacing:2px; color:var(--brown-3); font-size:13px; margin-bottom:10px; }
.jf-read-txt h2{ font-size:28px; margin-bottom:18px; }
.jf-read-txt p{ margin-bottom:14px; color:var(--ink-2); }
.jf-read-quote{
  border-left:4px solid var(--brown-3); background:var(--paper-2);
  padding:14px 18px; border-radius:0 10px 10px 0; color:var(--brown-2); font-size:14px;
}
.jf-read-img img{
  border-radius:16px; box-shadow:var(--shadow);
  /* 大圆角椭圆裁切 */
  border-radius:200px 16px 200px 16px;
}

/* ---------- 板块 3:墨黑得分表 ---------- */
.jf-score{ background:var(--ink); color:var(--cream); padding:80px 0 90px; }
.jf-num-light{ font-family:var(--font-mono); letter-spacing:3px; color:var(--tan); font-size:13px; }
.jf-light-h{ color:var(--cream); font-size:30px; margin:8px 0 14px; }
.jf-score-lead{ color:rgba(242,232,213,.78); max-width:760px; margin-bottom:24px; }
.jf-table-wrap{ border-radius:12px; overflow:hidden; border:1px solid #3A342C; }
.jf-tbl th{ background:var(--ink-3); color:var(--tan); border-color:#3A342C; font-size:14px; }
.jf-tbl td{ border-color:#3A342C; color:rgba(242,232,213,.86); font-size:14px; }
.jf-tbl tbody tr:nth-child(even){ background:var(--ink-2); }
.jf-score-note{ margin-top:14px; font-size:12.5px; color:var(--tan); }

/* ---------- 板块 4:键帽行 ---------- */
.jf-type{ padding:80px 0; background:var(--paper-2); }
.jf-type h2{ font-size:28px; margin-bottom:30px; }
.jf-keyrow{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.jf-key{
  background:var(--paper); border:1px solid var(--line-2); border-radius:12px;
  padding:22px 18px; box-shadow:0 5px 0 var(--line-2);
}
.jf-key-top{
  display:inline-block; font-family:var(--font-mono); font-size:13px; font-weight:700;
  color:var(--cream); background:var(--brown); padding:4px 12px; border-radius:6px;
  margin-bottom:14px; box-shadow:0 3px 0 #2A1E13;
}
.jf-key p{ font-size:13.5px; color:var(--ink-2); }
.jf-type-tip{ margin-top:26px; font-size:14px; color:var(--ink-2); }
.jf-inlink{ color:var(--brown-2); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 板块 5:案例(错位) ---------- */
.jf-case{ padding:70px 0; background:var(--paper); }
.jf-case-grid{ display:grid; grid-template-columns:1fr 1.1fr; gap:48px; align-items:center; }
.jf-case-img img{
  border-radius:16px; box-shadow:var(--shadow);
  transform:translateY(-20px);
  clip-path:polygon(0 6%,100% 0,100% 94%,0 100%);
}
.jf-case-txt h2{ font-size:26px; margin:8px 0 16px; }
.jf-case-txt p{ margin-bottom:14px; color:var(--ink-2); }

/* ---------- 板块 6:FAQ ---------- */
.jf-faq{ padding:80px 0; background:var(--paper-3); }
.jf-faq h2{ font-size:28px; margin-bottom:26px; }
.jf-faq-list{ max-width:860px; }
.jf-faq-i{ border:1px solid var(--line-2); border-radius:12px; margin-bottom:12px; background:var(--paper); overflow:hidden; }
.jf-faq-i summary{ cursor:pointer; padding:16px 20px; font-weight:700; color:var(--ink); font-family:var(--font-head); list-style:none; position:relative; padding-right:40px; }
.jf-faq-i summary::-webkit-details-marker{ display:none; }
.jf-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); }
.jf-faq-i[open] summary::after{ content:"–"; }
.jf-faq-i p{ padding:0 20px 18px; color:var(--ink-2); font-size:14.5px; }
.jf-faq-i a{ color:var(--brown-2); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 板块 7:CTA ---------- */
.jf-cta{ background:var(--brown); color:var(--cream); text-align:center; padding:80px 0; }
.jf-cta h2{ color:var(--cream); font-size:30px; margin-bottom:14px; }
.jf-cta p{ color:rgba(242,232,213,.88); max-width:620px; margin:0 auto 26px; }
.jf-cta-row{ display:flex; justify-content:center; flex-wrap:wrap; gap:14px; }
.jf-cta-links{ margin-top:24px; font-size:13.5px; color:rgba(242,232,213,.72); }
.jf-cta-links a{ color:var(--cream); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .jf-hero{ border-radius:0; padding:70px 0 60px; }
  .jf-hero h1{ font-size:30px; }
  .jf-read-grid,.jf-case-grid{ grid-template-columns:1fr; gap:30px; }
  .jf-keyrow{ grid-template-columns:1fr 1fr; }
  .jf-case-img img{ transform:none; }
}
@media (max-width:640px){
  .jf-hero h1{ font-size:25px; }
  .jf-read-txt h2,.jf-type h2,.jf-faq h2,.jf-light-h{ font-size:23px; }
  .jf-keyrow{ grid-template-columns:1fr; }
}

/* 表格列宽(由内联 col 迁移) */
.jf-tbl{table-layout:fixed;}
.jf-tbl col:nth-child(1){width:24%}
.jf-tbl col:nth-child(2){width:38%}
.jf-tbl col:nth-child(3){width:38%}

/* 投入产出 */
.jf-roi{padding:60px 0;background:var(--paper-3);}
.jf-roi h2{font-size:26px;margin-bottom:14px;}
.jf-roi>div>p{margin-bottom:14px;color:var(--ink-2);}
.jf-roi-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:20px;}
.jf-roi-i{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:8px;}
.jf-roi-i b{font-family:var(--font-head);color:var(--ink);}
.jf-roi-i span{font-size:13.5px;color:var(--ink-2);}
@media(max-width:1080px){.jf-roi-row{grid-template-columns:1fr;}}

/* 数量口径 */
.jf-quota{padding:60px 0;background:var(--paper);}
.jf-quota h2{font-size:26px;margin-bottom:16px;}
.jf-quota>div>p{margin-bottom:14px;color:var(--ink-2);}

.jf-value{padding:60px 0;background:var(--paper-2);}
.jf-value h2{font-size:26px;margin-bottom:16px;}
.jf-value>div>p{margin-bottom:14px;color:var(--ink-2);}

.jf-back{padding:60px 0;background:var(--paper);}
.jf-back h2{font-size:26px;margin-bottom:16px;}
.jf-back>div>p{margin-bottom:14px;color:var(--ink-2);}

.jf-men{padding:60px 0;background:var(--paper);}
.jf-men h2{font-size:26px;margin-bottom:16px;}
.jf-men>div>p{margin-bottom:14px;color:var(--ink-2);}