/* ── 结论 ─────────────────────────────────────────────── */
.hero {
  margin: 6px 12px 0; padding: 16px;
  background: var(--surface); border-radius: var(--r); box-shadow: var(--shadow);
}
.hero-top { display: flex; align-items: baseline; gap: 12px; }
.hero-label {
  flex: none; font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--ink-3);
}
.hero-num { margin-left: auto; display: flex; align-items: baseline; gap: 5px; }
.hero-num em {
  font-style: normal; font-size: 40px; line-height: 1; font-weight: 600;
  letter-spacing: -.035em; color: var(--ink);
}
.hero-num i { font-style: normal; font-size: 12px; color: var(--ink-3); }
.hero-note {
  margin: 0; padding: 4px 0 0; font-size: 13px; color: var(--ink-3); line-height: 1.6;
}
.hero-note b { color: var(--ink-2); font-weight: 500; }

/* 回本 / 门槛 / 合同期三者的位置关系，比三个孤立数字好读 */
.gauge { margin-top: 16px; }
.gauge-track { position: relative; height: 6px; border-radius: 3px; background: var(--sunk); }
.gauge-fill {
  position: absolute; inset: 0 auto 0 0; border-radius: 3px;
  background: var(--accent); transition: width 200ms ease;
}
.gauge-mark {
  position: absolute; top: -3px; bottom: -3px; width: 2px; border-radius: 1px;
  background: var(--ink); opacity: .5; transition: left 200ms ease;
}
.gauge-scale {
  display: flex; justify-content: space-between; gap: 10px;
  margin-top: 7px; font-size: 11.5px; color: var(--ink-3);
}

.hero-kpis {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 10px;
  margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line-2);
}
.kpi { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.kpi i {
  font-style: normal; font-size: 11.5px; color: var(--ink-3);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.kpi b {
  font-size: 17px; font-weight: 600; letter-spacing: -.02em;
  display: flex; align-items: baseline; gap: 2px;
}
.kpi b span { font-size: 11.5px; font-weight: 400; color: var(--ink-3); }
.kpi u {
  text-decoration: none; font-size: 10.5px; color: var(--ink-4); margin-top: 1px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.hero-why {
  display: flex; align-items: center; gap: 4px;
  margin-top: 12px; font-size: 12.5px; color: var(--ink-3);
}
.hero-why .icon { width: 14px; height: 14px; transition: transform 200ms; }
.hero.is-open .hero-why .icon { transform: rotate(180deg); }

/* ── 方案条 ───────────────────────────────────────────── */
.plans {
  position: sticky; top: 48px; z-index: 20;
  display: flex; align-items: center; gap: 8px; padding: 10px 12px 8px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.6) blur(12px);
  -webkit-backdrop-filter: saturate(1.6) blur(12px);
}
.plan-strip {
  flex: 1; min-width: 0; display: flex; gap: 6px;
  overflow-x: auto; scrollbar-width: none; scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.plan-strip::-webkit-scrollbar { display: none; }
.plan {
  flex: none; display: flex; align-items: center; gap: 6px;
  height: 32px; padding: 0 11px; border-radius: 9px;
  background: var(--surface); box-shadow: var(--shadow);
  color: var(--ink-2); white-space: nowrap;
  transition: background 150ms, color 150ms;
}
.plan .icon { width: 12px; height: 12px; color: var(--accent); }
.plan-name { font-size: 13px; max-width: 8em; overflow: hidden; text-overflow: ellipsis; }
.plan-val { font-size: 12px; color: var(--ink-3); }
.plan.is-on { background: var(--ink); color: var(--bg); }
.plan.is-on .plan-val { color: color-mix(in srgb, var(--bg) 70%, var(--ink)); }
.plan.is-on .icon { color: var(--bg); }
.plan-add, .plan-cmp {
  flex: none; height: 32px; border-radius: 9px;
  display: inline-flex; align-items: center; justify-content: center; gap: 5px;
  background: var(--surface); box-shadow: var(--shadow); color: var(--ink-2);
  transition: background 150ms;
}
.plan-add { width: 32px; color: var(--ink-3); }
.plan-cmp { padding: 0 11px; font-size: 13px; }
.plan-add:active, .plan-cmp:active { background: var(--sunk); }

/* ── 分组与行 ─────────────────────────────────────────── */
.group {
  margin: 12px 12px 0; background: var(--surface);
  border-radius: var(--r); box-shadow: var(--shadow); overflow: hidden;
}
.group-head { display: flex; align-items: baseline; gap: 8px; padding: 13px 16px 9px; }
.group-head h2 {
  margin: 0; font-size: 12px; font-weight: 600; letter-spacing: .04em; color: var(--ink-3);
}
.group-sum { margin-left: auto; font-size: 12px; color: var(--ink-3); text-align: right; }
.group-sum b { color: var(--ink-2); font-weight: 600; }

.row {
  display: flex; align-items: center; gap: 12px;
  min-height: 46px; padding: 0 16px; border-top: 1px solid var(--line-2);
}
.row > label, .row > .row-label {
  flex: 1; min-width: 0; font-size: 14px; color: var(--ink-2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.row-val { display: flex; align-items: baseline; gap: 3px; flex: none; }
.row input {
  width: 6.5em; padding: 6px 0; border: 0; background: none; border-radius: 0;
  text-align: right; font-size: 15px; font-weight: 500; letter-spacing: -.01em;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum";
  box-shadow: inset 0 -1px 0 var(--line-2); transition: box-shadow 150ms;
}
.row input::placeholder { color: var(--ink-4); font-weight: 400; }
.row input:focus { outline: none; box-shadow: inset 0 -1.5px 0 var(--accent); }
.row input:disabled { box-shadow: none; color: var(--ink-2); -webkit-text-fill-color: var(--ink-2); opacity: 1; }
/* 单位靠右，「元 / 个月 / 年」的行尾对齐 */
.row-unit { font-size: 11.5px; color: var(--ink-3); width: 2.4em; flex: none; text-align: right; }
.row-hint { font-size: 11.5px; color: var(--ink-4); flex: none; }

.unit {
  display: grid; align-items: center;
  grid-template-columns: minmax(0,1fr) 40px 14px 56px auto 26px;
  gap: 0 4px; min-height: 46px; padding: 0 10px 0 16px;
  border-top: 1px solid var(--line-2);
}
.unit.is-locked { grid-template-columns: minmax(0,1fr) 40px 14px 56px auto; padding-right: 16px; }
.unit input {
  border: 0; background: none; padding: 7px 0; min-width: 0; width: 100%; border-radius: 0;
  box-shadow: inset 0 -1px 0 var(--line-2); transition: box-shadow 150ms;
}
.unit input:focus { outline: none; box-shadow: inset 0 -1.5px 0 var(--accent); }
.unit input:disabled { box-shadow: none; -webkit-text-fill-color: inherit; opacity: 1; }
.unit input::placeholder { color: var(--ink-4); }
.u-name { font-size: 14px; color: var(--ink); }
.u-num {
  text-align: right; font-size: 15px; font-weight: 500;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum";
}
.u-x { font-size: 12px; color: var(--ink-3); text-align: center; }
.u-sub {
  font-size: 13px; text-align: right; color: var(--ink-3);
  min-width: 4.8em; padding-left: 14px;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum";
}
.u-sub.is-empty { color: var(--ink-4); }
.u-del {
  width: 26px; height: 26px; border-radius: 7px; display: grid; place-items: center;
  color: var(--ink-4); transition: color 150ms, background 150ms;
}
.u-del:active { color: var(--danger); background: var(--line-2); }

.add-row {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  width: 100%; min-height: 44px; border-top: 1px solid var(--line-2);
  font-size: 13.5px; color: var(--accent); transition: background 150ms;
}
.add-row:active { background: var(--sunk); }
.add-row.danger { color: var(--danger); }

.sync-note {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-top: 1px solid var(--line-2);
  background: var(--tint); font-size: 12px; color: var(--ink-2);
}
.sync-note button {
  margin-left: auto; flex: none; font-size: 12px; font-weight: 600;
  color: var(--accent); padding: 4px 8px; border-radius: 6px;
}
.sync-note button:active { background: color-mix(in srgb, var(--accent) 14%, transparent); }

/* ── 算式 ─────────────────────────────────────────────── */
.chain { padding: 4px 0 6px; }
.chain-title {
  font-size: 11.5px; font-weight: 600; letter-spacing: .04em;
  color: var(--ink-3); margin: 12px 0 6px;
}
.step { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px; padding: 5px 0; font-size: 12.5px; }
.step-name { width: 100%; font-size: 11.5px; color: var(--ink-3); }
.step .t { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.step .o { color: var(--ink-4); }
.step .r { margin-left: auto; font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.step .r span { font-size: 11px; font-weight: 400; color: var(--ink-3); margin-left: 2px; }

/* ── 底部常驻结论 ─────────────────────────────────────── */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  padding: 9px 14px calc(9px + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  box-shadow: var(--shadow-2);
  transform: translateY(100%); transition: transform 220ms ease;
}
.dock.is-up { transform: translateY(0); }
.dock-inner {
  max-width: 480px; margin: 0 auto; width: 100%;
  display: flex; align-items: center; gap: 16px;
}
@media (min-width: 720px) { .dock-inner { max-width: 560px; } }
.dock-item { display: flex; align-items: baseline; gap: 5px; white-space: nowrap; }
.dock-item i { font-style: normal; font-size: 11.5px; color: var(--ink-3); flex: none; }
.dock-item b {
  font-size: 15px; font-weight: 600; letter-spacing: -.01em;
  font-variant-numeric: tabular-nums; font-feature-settings: "tnum";
}
.dock-item b span { font-size: 11px; font-weight: 400; color: var(--ink-3); margin-left: 1px; }
.dock-up {
  margin-left: auto; flex: none; color: var(--ink-3);
  width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px;
}