/* =====================================================================
 * 57 · 宠物饮水机 —— 独立视觉：水位计 / 波纹水箱
 * 骨架：水箱 SVG / 四格输入 / 容量档条 / 滤芯倒计时 / 三档清洗表
 * 配色：水蓝青，波纹与刻度全部用 SVG + CSS 变量绘制
 * ===================================================================== */
.df-page {
    --df-water: #1c85b2;
    --df-water-deep: #125f83;
    --df-water-soft: #e4f2f9;
    --df-water-line: #bcdcec;
    --df-aqua: #2fb6bd;
    --df-paper: #ffffff;
    --df-paper-2: #f5fafd;
    --df-ink: #123446;
    --df-ink-2: #486679;
    --df-ink-3: #8ba3b1;
    --df-line: #dfeaf1;
    --df-amber: #a5701c;
    --df-amber-soft: #fbf1de;
    --df-red: #ab4054;
    --df-red-soft: #fbeaee;
    background: var(--hg6-c-bg);
}
:root[data-theme="dark"] .df-page {
    --df-water: #68c3e8;
    --df-water-deep: #9bd9f2;
    --df-water-soft: #142b38;
    --df-water-line: #275067;
    --df-aqua: #59d0d4;
    --df-paper: var(--hg6-paper);
    --df-paper-2: var(--hg6-paper-2);
    --df-ink: var(--hg6-ink);
    --df-ink-2: var(--hg6-ink-2);
    --df-ink-3: var(--hg6-ink-3);
    --df-line: var(--hg6-line);
    --df-amber: #e3b76b;
    --df-amber-soft: #322617;
    --df-red: #f096a6;
    --df-red-soft: #352027;
}
.df-page h1, .df-page h2, .df-page h3 { font-family: var(--hg6-font); letter-spacing: var(--hg6-tracking); color: var(--df-ink); }
.df-page p { font-size: var(--hg6-fz-body); line-height: var(--hg6-lh); color: var(--df-ink-2); }
.df-page b { color: var(--df-ink); }
.df-page small { font-size: var(--hg6-fz-xs); color: var(--df-ink-3); font-weight: 400; }
.df-page code { font: 500 12.5px/1.6 var(--hg6-num); background: var(--df-water-soft); color: var(--df-water-deep); padding: 1px 5px; border-radius: 4px; }
.df-inner { padding-top: 22px; }

/* ---------- 首屏：水箱 ---------- */
.df-hero {
    display: grid; grid-template-columns: minmax(0, 1fr) 210px; gap: 30px;
    background: var(--df-paper); border: 1px solid var(--df-line);
    border-left: 5px solid var(--df-water); border-radius: var(--hg6-r-l);
    padding: 34px 34px 30px; box-shadow: var(--hg6-sh-2);
    background-image: radial-gradient(720px 320px at 95% 0%, var(--df-water-soft) 0%, transparent 62%);
}
:root[data-theme="dark"] .df-hero { background-image: radial-gradient(720px 320px at 95% 0%, rgba(104, 195, 232, .09) 0%, transparent 62%); }
.df-kicker { font: 600 11px/1.4 var(--hg6-num); letter-spacing: .16em; color: var(--df-water-deep); text-transform: uppercase; }
.df-hero h1 { font-size: var(--hg6-fz-h1); font-weight: 780; line-height: 1.28; margin: 14px 0 15px; }
.df-lead { font-size: var(--hg6-fz-lead) !important; line-height: 1.9 !important; max-width: 62ch; margin: 0 0 20px; }
.df-lead b { border-bottom: 2px solid var(--df-water-line); }
.df-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.df-tags span { font-size: var(--hg6-fz-sm); padding: 6px 13px; border-radius: 999px; border: 1px solid var(--df-water-line); background: var(--df-paper); color: var(--df-ink-2); }
.df-tank { align-self: center; border: 1px dashed var(--df-water-line); border-radius: var(--hg6-r-m); background: var(--df-paper-2); padding: 12px 14px; color: var(--df-water); }
.df-tank-svg { width: 100%; height: auto; }
.df-tick { fill: var(--df-ink-3); font: 500 9px var(--hg6-num); }
.df-tank-ft { display: flex; justify-content: space-between; align-items: baseline; margin-top: 6px; padding-top: 8px; border-top: 1px solid var(--df-line); font: 600 10px var(--hg6-num); letter-spacing: .1em; color: var(--df-ink-3); }
.df-tank-ft b { font: 700 18px var(--hg6-num); color: var(--df-water-deep); letter-spacing: 0; }

/* ---------- 首屏操作入口 ---------- */
.df-quick { margin-top: 16px; padding: 24px 30px 26px; border: 1px solid var(--df-line); border-radius: var(--hg6-r-l); background: var(--df-paper); box-shadow: var(--hg6-sh-1); }
.df-quick-hd, .df-panel-hd { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.df-quick-hd h2, .df-panel-hd h2 { font-size: var(--hg6-fz-h2); font-weight: 720; margin: 0; }
.df-quick-hd small, .df-panel-hd small { margin-left: auto; }
.df-quick-hd h2 span, .df-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(--df-water-soft); color: var(--df-water-deep); font: 700 11px/1 var(--hg6-num); }
.df-quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.df-field > span { display: block; font-size: var(--hg6-fz-sm); font-weight: 600; color: var(--df-ink-2); margin-bottom: 6px; }
.df-field input, .df-field select, .df-page textarea { width: 100%; font: 600 16px/1.4 var(--hg6-num); color: var(--df-ink); background: var(--df-paper-2); border: 1px solid var(--df-line); border-radius: 9px; padding: 9px 11px; outline: none; }
.df-field select { font-family: var(--hg6-font); font-size: 14px; font-weight: 500; }
.df-field input:focus, .df-field select:focus, .df-page textarea:focus { border-color: var(--df-water); box-shadow: 0 0 0 3px var(--df-water-soft); }
.df-act { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--df-line); }
.df-btn { font: 600 14px/1.4 var(--hg6-font); cursor: pointer; padding: 10px 20px; border: 1px solid var(--df-water-line); border-radius: 9px; background: var(--df-paper); color: var(--df-water-deep); transition: all .18s ease; }
.df-btn:hover { background: var(--df-water-soft); border-color: var(--df-water); }
.df-btn--main { background: var(--df-water); border-color: var(--df-water); color: #fff; box-shadow: 0 6px 16px rgba(28, 133, 178, .22); }
.df-btn--main:hover { background: var(--df-water-deep); color: #fff; }
.df-btn--quiet { border-color: var(--df-line); color: var(--df-ink-2); }
.df-demo { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-left: auto; }
.df-demo span { font-size: var(--hg6-fz-xs); color: var(--df-ink-3); }
.df-demo button { font: 500 12px/1.3 var(--hg6-font); padding: 5px 10px; cursor: pointer; border: 1px dashed var(--df-water-line); border-radius: 999px; background: transparent; color: var(--df-ink-2); }
.df-demo button:hover { background: var(--df-water-soft); }
.df-err { margin-top: 11px; font-size: var(--hg6-fz-sm); color: var(--df-red); }
.df-err:not(:empty) { background: var(--df-red-soft); border-left: 3px solid var(--df-red); padding: 9px 12px; border-radius: 0 8px 8px 0; }

/* ---------- 三栏主体 ---------- */
.df-body { display: grid; grid-template-columns: 1.05fr 1fr .95fr; gap: var(--hg6-gap); margin-top: var(--hg6-gap); align-items: start; }
.df-panel { min-width: 0; border: 1px solid var(--df-line); border-radius: var(--hg6-r-l); background: var(--df-paper); padding: 22px 22px 24px; box-shadow: var(--hg6-sh-1); }
.df-panel-hd { padding-bottom: 13px; border-bottom: 1px solid var(--df-line); }
.df-panel-hd h2 { font-size: 17px; }
.df-big { display: flex; align-items: baseline; gap: 10px; }
.df-big b { font: 700 40px/1.2 var(--hg6-num); color: var(--df-water-deep); }
.df-big span { font-size: var(--hg6-fz-sm); color: var(--df-ink-3); }
.df-stats { margin: 14px 0 0; display: grid; gap: 0; }
.df-stats div { display: flex; justify-content: space-between; gap: 10px; padding: 8px 2px; border-bottom: 1px dashed var(--df-line); }
.df-stats dt { font-size: var(--hg6-fz-sm); color: var(--df-ink-2); }
.df-stats dd { margin: 0; font: 700 14px/1.4 var(--hg6-num); color: var(--df-ink); }
.df-cap-bars { display: flex; align-items: flex-end; gap: 6px; height: 66px; margin: 18px 0 12px; }
.df-cap-bar { flex: 1; border-radius: 5px 5px 0 0; background: var(--df-water-soft); border: 1px solid var(--df-water-line); border-bottom: 0; position: relative; min-height: 8px; }
.df-cap-bar span { position: absolute; left: 0; right: 0; bottom: -18px; text-align: center; font: 500 10px var(--hg6-num); color: var(--df-ink-3); }
.df-cap-bar.is-on { background: var(--df-aqua); border-color: var(--df-aqua); }
.df-cap-bar.is-on span { color: var(--df-water-deep); font-weight: 700; }
.df-field--inline { margin-top: 30px; padding-top: 14px; border-top: 1px dashed var(--df-line); }
.df-field--inline input { font-size: 14px; font-weight: 500; }

.df-count { display: flex; align-items: baseline; gap: 9px; }
.df-count b { font: 700 36px/1.2 var(--hg6-num); color: var(--df-water-deep); }
.df-count span { font-size: var(--hg6-fz-sm); color: var(--df-ink-3); }
.df-count-bar { height: 10px; margin-top: 10px; border-radius: 999px; background: var(--df-paper-2); border: 1px solid var(--df-line); overflow: hidden; }
.df-count-bar i { display: block; height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--df-aqua), var(--df-amber)); transition: width .4s ease; }
.df-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 17px; }
.df-next { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-top: 15px; padding: 11px 13px; border-radius: 9px; background: var(--df-water-soft); }
.df-next span { font-size: var(--hg6-fz-sm); color: var(--df-ink-2); }
.df-next b { font: 700 16px var(--hg6-num); color: var(--df-water-deep); }
.df-signals { margin-top: 17px; }
.df-signals h3 { font-size: 15px; margin-bottom: 8px; }
.df-signals ul { margin: 0; padding-left: 18px; }
.df-signals li { font-size: var(--hg6-fz-sm); line-height: 1.85; color: var(--df-ink-2); }
.df-clean-list { display: grid; gap: 9px; }
.df-clean-item { display: flex; gap: 11px; align-items: flex-start; padding: 11px 12px; border: 1px solid var(--df-line); border-radius: 10px; background: var(--df-paper-2); }
.df-clean-item input { accent-color: var(--df-water); margin-top: 4px; }
.df-clean-item b { display: block; font-size: 13.5px; }
.df-clean-item small { display: block; margin-top: 3px; line-height: 1.65; }
.df-clean-item > span { font: 700 11px/1.4 var(--hg6-num); padding: 3px 7px; border-radius: 5px; background: var(--df-water-soft); color: var(--df-water-deep); white-space: nowrap; }
.df-warns { margin-top: 14px; display: grid; gap: 7px; }
.df-warn { font-size: var(--hg6-fz-sm); line-height: 1.7; padding: 8px 11px; border-radius: 8px; background: var(--df-amber-soft); color: var(--df-amber); border-left: 3px solid var(--df-amber); }
.df-warn--bad { background: var(--df-red-soft); color: var(--df-red); border-left-color: var(--df-red); }

/* ---------- 批量 / 阅读 / 脚注 ---------- */
.df-batch, .df-read { margin-top: var(--hg6-gap); }
.df-tip { margin-bottom: 12px; }
.df-page textarea { resize: vertical; line-height: 1.75; font-size: 12.5px; font-weight: 500; }
.df-batch-act { display: flex; flex-wrap: wrap; gap: 10px; margin: 13px 0 15px; }
.df-table-wrap { overflow-x: auto; border: 1px solid var(--df-line); border-radius: var(--hg6-r-m); }
.df-table-wrap table { width: 100%; border-collapse: collapse; font-size: var(--hg6-fz-sm); min-width: 740px; }
.df-table-wrap th { background: var(--df-water-soft); color: var(--df-water-deep); font-weight: 700; text-align: left; }
.df-table-wrap th, .df-table-wrap td { padding: 9px 11px; border-bottom: 1px solid var(--df-line); white-space: nowrap; }
.df-table-wrap td { color: var(--df-ink-2); }
.df-table-wrap tr:last-child td { border-bottom: none; }
.df-empty { color: var(--df-ink-3); text-align: center; padding: 18px; margin: 0; }
.df-read { padding: 0 2px; }
.df-read-hd { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.df-read-hd h2 { font-size: var(--hg6-fz-h2); }
.df-read-hd span { font-size: var(--hg6-fz-xs); color: var(--df-ink-3); }
.df-read-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.df-read-grid p { margin: 0; padding: 17px 19px; border-radius: var(--hg6-r-m); background: var(--df-paper); border: 1px solid var(--df-line); border-bottom: 3px solid var(--df-water-line); }
.df-read-grid p b { border-bottom: 2px solid var(--df-water-line); }
.df-foot { margin: 22px 2px 0; font-size: var(--hg6-fz-sm) !important; line-height: 1.85; color: var(--df-ink-3) !important; }

@media (max-width: 1000px) {
    .df-body { grid-template-columns: 1fr 1fr; }
    .df-clean { grid-column: 1 / -1; }
    .df-hero { grid-template-columns: 1fr; }
    .df-tank { max-width: 220px; }
    .df-quick-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
    .df-hero, .df-quick { padding: 22px 18px; border-radius: var(--hg6-r-m); }
    .df-body, .df-read-grid { grid-template-columns: 1fr; }
    .df-panel { padding: 18px 16px 20px; }
    .df-demo { margin-left: 0; width: 100%; }
}