/* =====================================================================
 * 53 · 冻干猫粮复水 —— 独立视觉：复水实验台 / 量杯刻度
 * 骨架：量杯 SVG / 体重滑杆 / 三大量杯数字 / 逐日过渡甘特条
 * 配色：琥珀奶油黄 + 水蓝，与 51 薄荷、52 陶土完全不同
 * ===================================================================== */
.fr-page {
    --fr-amber: #b27a17;
    --fr-amber-deep: #8a5b0d;
    --fr-amber-soft: #fbf0d9;
    --fr-amber-line: #ecd5a6;
    --fr-cream: #fffcf4;
    --fr-paper: #ffffff;
    --fr-paper-2: #faf7f0;
    --fr-ink: #382b12;
    --fr-ink-2: #6c5a38;
    --fr-ink-3: #a08e6d;
    --fr-line: #eee5d2;
    --fr-water: #2b88b3;
    --fr-water-soft: #e5f2f8;
    --fr-green: #5c8350;
    --fr-red: #a8493c;
    --fr-red-soft: #fbece8;
    background: var(--hg6-c-bg);
}
:root[data-theme="dark"] .fr-page {
    --fr-amber: #e2b45f;
    --fr-amber-deep: #f0cd8b;
    --fr-amber-soft: #322614;
    --fr-amber-line: #59451f;
    --fr-cream: var(--hg6-paper-2);
    --fr-paper: var(--hg6-paper);
    --fr-paper-2: var(--hg6-paper-2);
    --fr-ink: var(--hg6-ink);
    --fr-ink-2: var(--hg6-ink-2);
    --fr-ink-3: var(--hg6-ink-3);
    --fr-line: var(--hg6-line);
    --fr-water: #6cc4e8;
    --fr-water-soft: #142b38;
    --fr-green: #8ec081;
    --fr-red: #ef9c90;
    --fr-red-soft: #33201d;
}
.fr-page h1, .fr-page h2, .fr-page h3 { font-family: var(--hg6-font); letter-spacing: var(--hg6-tracking); color: var(--fr-ink); }
.fr-page p { font-size: var(--hg6-fz-body); line-height: var(--hg6-lh); color: var(--fr-ink-2); }
.fr-page b { color: var(--fr-ink); }
.fr-page small { font-size: var(--hg6-fz-xs); color: var(--fr-ink-3); font-weight: 400; }
.fr-page code { font: 500 12.5px/1.6 var(--hg6-num); background: var(--fr-amber-soft); color: var(--fr-amber-deep); padding: 1px 5px; border-radius: 4px; }
.fr-inner { padding-top: 22px; }

/* ---------- 首屏：纸感抬头 + 量杯 ---------- */
.fr-hero {
    display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 32px;
    background: var(--fr-cream); border: 1px solid var(--fr-line);
    border-top: 5px solid var(--fr-amber); border-radius: var(--hg6-r-l);
    padding: 34px 34px 30px; box-shadow: var(--hg6-sh-2);
}
.fr-kicker { font: 600 11px/1.4 var(--hg6-num); letter-spacing: .16em; color: var(--fr-amber-deep); text-transform: uppercase; }
.fr-hero h1 { font-size: var(--hg6-fz-h1); font-weight: 780; line-height: 1.28; margin: 14px 0 15px; }
.fr-lead { font-size: var(--hg6-fz-lead) !important; line-height: 1.9 !important; max-width: 62ch; margin: 0 0 20px; }
.fr-lead b { background: var(--fr-amber-soft); padding: 0 3px; border-radius: 3px; }
.fr-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.fr-tags span { font-size: var(--hg6-fz-sm); padding: 6px 13px; border: 1px solid var(--fr-amber-line); border-radius: 6px; background: var(--fr-paper); color: var(--fr-ink-2); }
.fr-beaker { display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px dashed var(--fr-amber-line); border-radius: var(--hg6-r-m); background: var(--fr-paper); padding: 12px; color: var(--fr-water); }
.fr-beaker-svg { width: 140px; max-width: 100%; height: auto; }
.fr-tick-t { font: 600 10px var(--hg6-num); fill: var(--fr-ink-3); }
.fr-beaker-ft { width: 100%; display: flex; justify-content: space-between; align-items: baseline; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--fr-line); font: 600 10px var(--hg6-num); letter-spacing: .1em; color: var(--fr-ink-3); }
.fr-beaker-ft b { font: 700 16px var(--hg6-num); color: var(--fr-amber-deep); }

/* ---------- 首屏操作入口：滑杆 + 比例快捷 ---------- */
.fr-quick { margin-top: 16px; padding: 24px 30px 26px; border: 1px solid var(--fr-line); border-radius: var(--hg6-r-l); background: var(--fr-paper); box-shadow: var(--hg6-sh-1); }
.fr-quick-hd, .fr-panel-hd { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.fr-quick-hd h2, .fr-panel-hd h2 { font-size: var(--hg6-fz-h2); font-weight: 720; margin: 0; }
.fr-quick-hd small, .fr-panel-hd small { margin-left: auto; }
.fr-quick-hd h2 span, .fr-panel-hd > span { display: inline-flex; align-items: center; justify-content: center; min-width: 26px; height: 24px; margin-right: 4px; border-radius: 7px; background: var(--fr-amber-soft); color: var(--fr-amber-deep); font: 700 11px/1 var(--hg6-num); }
.fr-slider-row { display: grid; grid-template-columns: 1.4fr .8fr; gap: 28px; align-items: center; }
.fr-slider-l label { display: flex; align-items: baseline; gap: 10px; font-size: var(--hg6-fz-sm); font-weight: 600; color: var(--fr-ink-2); margin-bottom: 10px; }
.fr-slider-l label b { font: 700 22px/1 var(--hg6-num); color: var(--fr-amber-deep); }
.fr-page input[type="range"] { width: 100%; height: 8px; border-radius: 999px; background: linear-gradient(90deg, var(--fr-amber-line), var(--fr-amber)); appearance: none; -webkit-appearance: none; outline: none; cursor: pointer; }
.fr-page input[type="range"]::-webkit-slider-thumb { appearance: none; -webkit-appearance: none; width: 21px; height: 21px; border-radius: 50%; background: var(--fr-paper); border: 4px solid var(--fr-amber); box-shadow: var(--hg6-sh-2); }
.fr-page input[type="range"]::-moz-range-thumb { width: 15px; height: 15px; border-radius: 50%; background: var(--fr-paper); border: 4px solid var(--fr-amber); }
.fr-slider-scale { display: flex; justify-content: space-between; margin-top: 9px; font: 500 10.5px var(--hg6-num); color: var(--fr-ink-3); }
.fr-ratio-pick > span { display: block; font-size: var(--hg6-fz-sm); font-weight: 600; color: var(--fr-ink-2); margin-bottom: 10px; }
.fr-ratio-pick > div { display: flex; gap: 8px; }
.fr-ratio-pick button { flex: 1; cursor: pointer; padding: 11px 4px; border: 1px solid var(--fr-amber-line); border-radius: 10px; background: var(--fr-paper-2); color: var(--fr-ink-2); font: 700 15px/1.3 var(--hg6-num); transition: all .18s ease; }
.fr-ratio-pick button:hover { border-color: var(--fr-amber); }
.fr-ratio-pick button.is-on { background: var(--fr-water); border-color: var(--fr-water); color: #fff; }
.fr-act { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--fr-line); }
.fr-btn { font: 600 14px/1.4 var(--hg6-font); cursor: pointer; padding: 10px 20px; border: 1px solid var(--fr-amber-line); border-radius: 9px; background: var(--fr-paper); color: var(--fr-amber-deep); transition: all .18s ease; }
.fr-btn:hover { background: var(--fr-amber-soft); border-color: var(--fr-amber); }
.fr-btn--main { background: var(--fr-amber); border-color: var(--fr-amber); color: #fff; box-shadow: 0 6px 16px rgba(178, 122, 23, .22); }
.fr-btn--main:hover { background: var(--fr-amber-deep); color: #fff; }
.fr-btn--quiet { border-color: var(--fr-line); color: var(--fr-ink-2); }
.fr-demo { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-left: auto; }
.fr-demo span { font-size: var(--hg6-fz-xs); color: var(--fr-ink-3); }
.fr-demo button { font: 500 12px/1.3 var(--hg6-font); padding: 5px 10px; cursor: pointer; border: 1px dashed var(--fr-amber-line); border-radius: 999px; background: transparent; color: var(--fr-ink-2); }
.fr-demo button:hover { background: var(--fr-amber-soft); }
.fr-err { margin-top: 11px; font-size: var(--hg6-fz-sm); color: var(--fr-red); }
.fr-err:not(:empty) { background: var(--fr-red-soft); border-left: 3px solid var(--fr-red); padding: 9px 12px; border-radius: 0 8px 8px 0; }

/* ---------- 三大量杯数字 ---------- */
.fr-numbers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.fr-num { position: relative; border: 1px solid var(--fr-line); border-radius: var(--hg6-r-l); background: var(--fr-paper); padding: 20px 22px 18px; overflow: hidden; box-shadow: var(--hg6-sh-1); }
.fr-num::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--fr-amber-line); }
.fr-num > span { font-size: var(--hg6-fz-sm); font-weight: 600; color: var(--fr-ink-2); }
.fr-num > b { display: block; font: 700 clamp(30px, 4vw, 42px)/1.2 var(--hg6-num); color: var(--fr-amber-deep); margin: 5px 0 1px; }
.fr-num > small { display: block; font-size: var(--hg6-fz-xs); }
.fr-num > p { margin: 10px 0 0; font-size: var(--hg6-fz-sm); }
.fr-num--main { background: var(--fr-cream); border-color: var(--fr-amber-line); }
.fr-num--main::before { background: var(--fr-amber); }
.fr-num--water::before { background: var(--fr-water); }
.fr-num--water > b { color: var(--fr-water); }

/* ---------- 主体：过渡甘特 + 参数 ---------- */
.fr-body { display: grid; grid-template-columns: 1.35fr .75fr; gap: var(--hg6-gap); margin-top: var(--hg6-gap); align-items: start; }
.fr-panel { min-width: 0; border: 1px solid var(--fr-line); border-radius: var(--hg6-r-l); background: var(--fr-paper); padding: 22px 22px 24px; box-shadow: var(--hg6-sh-1); }
.fr-panel-hd { padding-bottom: 13px; border-bottom: 1px solid var(--fr-line); }
.fr-panel-hd h2 { font-size: 17px; }
.fr-gantt { display: grid; gap: 9px; }
.fr-day { display: grid; grid-template-columns: 54px minmax(0, 1fr) 138px; gap: 10px; align-items: center; }
.fr-day-label { font: 700 12px/1.3 var(--hg6-num); color: var(--fr-ink-2); }
.fr-day-label small { display: block; font-size: 10px; }
.fr-day-bars { display: flex; height: 24px; border-radius: 6px; overflow: hidden; border: 1px solid var(--fr-line); background: var(--fr-paper-2); }
.fr-day-new { background: var(--fr-amber); color: #fff; font: 600 10.5px/24px var(--hg6-num); text-align: center; min-width: 0; transition: width .35s ease; overflow: hidden; }
.fr-day-old { background: var(--fr-amber-soft); color: var(--fr-amber-deep); font: 600 10.5px/24px var(--hg6-num); text-align: center; flex: 1; overflow: hidden; }
.fr-day-val { font: 500 12px/1.5 var(--hg6-num); color: var(--fr-ink-2); text-align: right; white-space: nowrap; }
.fr-trans-check { margin-top: 16px; padding: 10px 13px; border-radius: 9px; background: var(--fr-water-soft); color: var(--fr-water); font-size: var(--hg6-fz-sm); line-height: 1.75; }
.fr-trans-check.is-bad { background: var(--fr-red-soft); color: var(--fr-red); }
.fr-empty { color: var(--fr-ink-3); text-align: center; padding: 18px; margin: 0; }

.fr-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fr-field > span { display: block; font-size: var(--hg6-fz-sm); font-weight: 600; color: var(--fr-ink-2); margin-bottom: 6px; }
.fr-field select, .fr-field input, .fr-page textarea { width: 100%; font: 500 14px/1.5 var(--hg6-font); color: var(--fr-ink); background: var(--fr-paper-2); border: 1px solid var(--fr-line); border-radius: 9px; padding: 9px 10px; outline: none; }
.fr-field select:focus, .fr-field input:focus, .fr-page textarea:focus { border-color: var(--fr-amber); box-shadow: 0 0 0 3px var(--fr-amber-soft); }
.fr-formula { margin-top: 18px; padding: 14px 15px; border-radius: var(--hg6-r-m); background: var(--fr-cream); border: 1px dashed var(--fr-amber-line); }
.fr-formula h3 { font-size: 14px; margin-bottom: 7px; }
.fr-formula p { font-size: var(--hg6-fz-sm); margin: 0; }
.fr-formula sup { font-size: 10px; }
.fr-warns { margin-top: 14px; display: grid; gap: 7px; }
.fr-warn { font-size: var(--hg6-fz-sm); line-height: 1.7; padding: 8px 11px; border-radius: 8px; background: var(--fr-amber-soft); color: var(--fr-amber-deep); border-left: 3px solid var(--fr-amber); }
.fr-warn--bad { background: var(--fr-red-soft); color: var(--fr-red); border-left-color: var(--fr-red); }

/* ---------- 批量 / 阅读 / 脚注 ---------- */
.fr-batch, .fr-read { margin-top: var(--hg6-gap); }
.fr-tip { margin-bottom: 12px; }
.fr-page textarea { resize: vertical; line-height: 1.75; font-family: var(--hg6-num); font-size: 13px; }
.fr-batch-act { display: flex; flex-wrap: wrap; gap: 10px; margin: 13px 0 15px; }
.fr-table-wrap { overflow-x: auto; border: 1px solid var(--fr-line); border-radius: var(--hg6-r-m); }
.fr-table-wrap table { width: 100%; border-collapse: collapse; font-size: var(--hg6-fz-sm); min-width: 680px; }
.fr-table-wrap th { background: var(--fr-amber-soft); color: var(--fr-amber-deep); font-weight: 700; text-align: left; }
.fr-table-wrap th, .fr-table-wrap td { padding: 9px 11px; border-bottom: 1px solid var(--fr-line); white-space: nowrap; }
.fr-table-wrap td { color: var(--fr-ink-2); }
.fr-table-wrap tr:last-child td { border-bottom: none; }
.fr-read { padding: 0 2px; }
.fr-read-hd { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.fr-read-hd h2 { font-size: var(--hg6-fz-h2); }
.fr-read-hd span { font-size: var(--hg6-fz-xs); color: var(--fr-ink-3); }
.fr-read-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fr-read-grid p { margin: 0; padding: 17px 19px; border-radius: var(--hg6-r-m); background: var(--fr-paper); border: 1px solid var(--fr-line); border-bottom: 3px solid var(--fr-amber-line); }
.fr-read-grid p b { background: var(--fr-amber-soft); padding: 0 3px; border-radius: 3px; }
.fr-foot { margin: 22px 2px 0; font-size: var(--hg6-fz-sm) !important; line-height: 1.85; color: var(--fr-ink-3) !important; }

@media (max-width: 1000px) {
    .fr-body { grid-template-columns: 1fr; }
    .fr-hero { grid-template-columns: 1fr; }
    .fr-beaker { max-width: 220px; }
}
@media (max-width: 720px) {
    .fr-hero, .fr-quick { padding: 22px 18px; border-radius: var(--hg6-r-m); }
    .fr-slider-row, .fr-numbers, .fr-read-grid { grid-template-columns: 1fr; }
    .fr-panel { padding: 18px 16px 20px; }
    .fr-demo { margin-left: 0; width: 100%; }
    .fr-day { grid-template-columns: 48px minmax(0, 1fr); }
    .fr-day-val { grid-column: 2; text-align: left; }
}