/* ==========================================================================
   15 · 地暖清洗周期对照 —— LOOP SERVICE LOG
   独立设计：暖砖红 + 石灰米；首屏「管路速算台」带蛇形刻度边，
   排查顺序是带竖直连线的阶梯列表，用量与费用为左右双栏账单卡。
   ========================================================================== */
.rfc {
    --hg-paper:      #f6f2ee;
    --hg-paper-2:    #eae1dc;
    --hg-card:       #fffdfb;
    --hg-card-2:     #f4ece8;
    --hg-ink:        #33221f;
    --hg-ink-2:      #5c4741;
    --hg-ink-3:      #927c75;
    --hg-line:       #e0d2ca;
    --hg-line-2:     #c6afa5;
    --hg-brand:      #a8443a;
    --hg-brand-2:    #3c6b6b;
    --hg-brand-soft: #f7e4df;
    --hg-on-brand:   #fff8f5;
    background: var(--hg-paper);
}
:root[data-theme="dark"] .rfc {
    --hg-paper:      #171110;
    --hg-paper-2:    #221a18;
    --hg-card:       #1c1614;
    --hg-card-2:     #261d1a;
    --hg-ink:        #f5e9e5;
    --hg-ink-2:      #d0b8b1;
    --hg-ink-3:      #9c837c;
    --hg-line:       #3a2b27;
    --hg-line-2:     #524039;
    --hg-brand:      #ec9b8e;
    --hg-brand-2:    #85bcbc;
    --hg-brand-soft: #35211e;
    --hg-on-brand:   #1a0c0a;
}
.rfc .hg2-btn { border-radius: 2px; }

/* ---------- 首屏：左价值 + 右速算台 ---------- */
.rfc-hero { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); border-bottom: 2px solid var(--hg-line-2); }
.rfc-hero-copy { padding: 44px 44px 46px 0; }
.rfc-kicker { display: inline-block; font: 700 11.5px/1.5 var(--hg-mono); letter-spacing: .18em; color: var(--hg-brand); border-left: 3px solid var(--hg-brand); padding-left: 10px; margin-bottom: 22px; }
.rfc-hero h1 { margin-bottom: 20px; }
.rfc-lede { font-size: 16px; line-height: 1.92; max-width: 55ch; }
.rfc-lede b { box-shadow: inset 0 -.4em 0 var(--hg-brand-soft); }
.rfc-points { list-style: none; margin: 24px 0 0; padding: 0; border-top: 1px solid var(--hg-line); }
.rfc-points li { position: relative; padding: 9px 0 9px 22px; border-bottom: 1px solid var(--hg-line); font-size: 13.5px; line-height: 1.75; color: var(--hg-ink-2); margin: 0; }
.rfc-points li::before { content: ''; position: absolute; left: 2px; top: 17px; width: 8px; height: 2px; background: var(--hg-brand); }
.rfc-points b { color: var(--hg-ink); }
.rfc-hero-note { margin: 20px 0 0; font-size: 12.5px; line-height: 1.8; color: var(--hg-ink-3); }

.rfc-quick { position: relative; padding: 28px 30px 32px; border-left: 1px solid var(--hg-line-2); background: var(--hg-card); }
.rfc-quick::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
    background: repeating-linear-gradient(180deg, var(--hg-brand) 0 14px, transparent 14px 22px); }
.rfc-quick-hd { display: flex; align-items: center; justify-content: space-between; gap: 10px; font: 700 11.5px/1.5 var(--hg-mono); letter-spacing: .12em; color: var(--hg-ink-3); }
.rfc-quick-hd b { color: var(--hg-brand); border: 1px solid var(--hg-line-2); padding: 2px 8px; font-size: 11px; }
.rfc-next { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 20px 0 18px; border-bottom: 1px dashed var(--hg-line-2); text-align: center; }
.rfc-next span { font: 700 11px/1.5 var(--hg-mono); letter-spacing: .14em; color: var(--hg-ink-3); }
.rfc-next strong { font: 700 clamp(30px, 5vw, 44px)/1.35 var(--hg-mono); color: var(--hg-brand); letter-spacing: -.04em; }
.rfc-next small { font-size: 12px; color: var(--hg-ink-3); }
.rfc-quick-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.rfc-quick-btns { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 16px; }
.rfc-quick-btns .hg2-btn { flex: 1 1 auto; }
.rfc-quick .hg2-hint { margin-top: 14px; }

/* ---------- 01 管路示意 + 周期条件 ---------- */
.rfc-loops { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
.rfc-pipe-figure { border: 1px solid var(--hg-line); background: var(--hg-card); padding: 18px; text-align: center; }
.rfc-pipe-figure img { max-width: 100%; height: auto; display: block; margin: 0 auto 10px; }
.rfc-pipe-figure span { font: 11.5px/1.6 var(--hg-mono); color: var(--hg-ink-3); letter-spacing: .06em; }
.rfc-cycle-factors { border: 1px solid var(--hg-line); background: var(--hg-card); padding: 20px 22px; }
.rfc-card-hd { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-bottom: 12px; margin-bottom: 16px; border-bottom: 1px solid var(--hg-line); }
.rfc-card-hd h3 { font-family: var(--hg-display); font-size: 19px; }
.rfc-card-hd span { font: 11.5px/1.5 var(--hg-mono); color: var(--hg-ink-3); }
.rfc-factors { display: flex; flex-wrap: wrap; gap: 9px; }
.rfc-cycle-meter { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; margin-top: 20px; padding-top: 14px; border-top: 1px solid var(--hg-line); font-size: 12.5px; color: var(--hg-ink-3); }
.rfc-cycle-meter b { font: 700 18px/1 var(--hg-mono); color: var(--hg-brand); }
.rfc-cycle-meter i { font-style: normal; color: var(--hg-line-2); }

/* ---------- 02 双栏账单卡 ---------- */
.rfc-two, .rfc-result-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.rfc-card { background: var(--hg-card); border: 1px solid var(--hg-line); border-top: 3px solid var(--hg-brand-2); padding: 20px 22px 22px; }
.rfc-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.rfc-out { margin-top: 16px; padding: 12px 14px; background: var(--hg-card-2); border: 1px solid var(--hg-line); font: 700 13px/1.75 var(--hg-mono); color: var(--hg-brand); }
.rfc-out.is-bad { color: var(--hg-bad); background: var(--hg-bad-bg); border-color: var(--hg-bad); }
.rfc-btn-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; align-items: center; }
.rfc-main-btns { padding: 18px 0 0; }

/* ---------- 03 排查阶梯 ---------- */
.rfc-checks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hg-line); border: 1px solid var(--hg-line); }
.rfc-check { position: relative; display: flex; gap: 12px; align-items: flex-start; padding: 16px 18px 18px; background: var(--hg-card); cursor: pointer; transition: background .15s; }
.rfc-check:hover { background: var(--hg-card-2); }
.rfc-check.is-on { background: var(--hg-brand-soft); }
.rfc-check-no { flex: none; width: 26px; height: 26px; border: 1px solid var(--hg-line-2); border-radius: 50%; display: flex; align-items: center; justify-content: center; font: 700 11.5px/1 var(--hg-mono); color: var(--hg-ink-3); background: var(--hg-card); }
.rfc-check.is-on .rfc-check-no { background: var(--hg-brand); color: var(--hg-on-brand); border-color: var(--hg-brand); }
.rfc-check input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.rfc-check-txt b { display: block; font-size: 13.5px; color: var(--hg-ink); line-height: 1.5; }
.rfc-check-txt span { display: block; font-size: 12px; line-height: 1.7; color: var(--hg-ink-3); margin-top: 3px; }
.rfc-diag-out { margin-top: 14px; padding: 14px 18px; border-left: 4px solid var(--hg-brand-2); background: var(--hg-card); border: 1px solid var(--hg-line); border-left: 4px solid var(--hg-brand-2); font-size: 13.5px; line-height: 1.85; color: var(--hg-ink-2); }
.rfc-diag-out b { color: var(--hg-ink); }

/* ---------- 04 结果 ---------- */
.rfc-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--hg-line); border: 1px solid var(--hg-line); margin-bottom: 18px; }
.rfc-kpi { background: var(--hg-card); padding: 16px 18px; }
.rfc-kpi span { display: block; font-size: 12px; color: var(--hg-ink-3); }
.rfc-kpi strong { display: block; font: 700 22px/1.4 var(--hg-mono); color: var(--hg-brand); margin-top: 4px; }
.rfc-kpi small { display: block; font-size: 11.5px; color: var(--hg-ink-3); }
.rfc-todo { margin: 0; padding-left: 1.3em; font-size: 13.5px; line-height: 1.9; color: var(--hg-ink-2); }
.rfc-todo li { margin-bottom: 8px; }
.rfc-todo b, .rfc-ask b { color: var(--hg-ink); }
.rfc-ask p { padding-left: 14px; border-left: 2px solid var(--hg-brand-soft); margin-bottom: 9px; font-size: 13.5px; line-height: 1.85; }
.rfc-result-btns { padding-top: 18px; border-top: 1px solid var(--hg-line); margin-top: 22px; }

/* ---------- 05 批量 ---------- */
.rfc-batch { border: 1px solid var(--hg-line); background: var(--hg-card); padding: 20px 22px; }
.rfc-clean { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin-top: 14px; }
.rfc-clean > b { width: 100%; font-size: 12.5px; color: var(--hg-ink-2); }
.rfc-preview { width: 100%; margin-top: 6px; padding: 8px 10px; background: var(--hg-card-2); font: 12px/1.7 var(--hg-mono); color: var(--hg-ink-3); word-break: break-all; }
.rfc-batch-tbl { margin-top: 16px; }

@media (max-width: 980px) {
    .rfc-hero, .rfc-loops, .rfc-two, .rfc-result-cols { grid-template-columns: 1fr; }
    .rfc-hero-copy { padding-right: 0; }
    .rfc-quick { border-left: 0; border-top: 1px solid var(--hg-line-2); }
    .rfc-checks, .rfc-kpis { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
    .rfc-quick-fields, .rfc-fields, .rfc-checks, .rfc-kpis { grid-template-columns: 1fr; }
    .rfc-next strong { font-size: 30px; }
}