:root{color-scheme:light;--page:#fff6fa;--canvas:linear-gradient(140deg,#fbdde7 0%,#fff8fc 42%,#e6efff 72%,#dcecff 100%);--surface:#ffffff;--ink:#333749;--muted:#616172;--line:#e1dce9;--julia:#a83e71;--accent:#a83e71;--soft:#fbe7f0;--blue:#3364a2;--error:#984d48;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#f3f6ff;font-synthesis:none}
*{box-sizing:border-box}body{margin:0}h1,h2,p,figure{margin:0}h1{font-size:24px;letter-spacing:-.025em;font-weight:650}h2{font-size:17px;font-weight:600}button,input,a{font:inherit;color:inherit;-webkit-tap-highlight-color:transparent}button,input{touch-action:manipulation}button{cursor:pointer;border:0}button:disabled{opacity:.55;cursor:default}a{text-decoration:none}input{min-width:0;caret-color:var(--accent)}::selection{background:#f4cddd;color:var(--ink)}:focus-visible{outline:3px solid #a83e71;outline-offset:3px}input::placeholder{color:#726477}button,a{transition:background-color .16s ease-out,color .16s ease-out}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}svg{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.app-shell{max-width:430px;margin:auto;min-height:100svh;background:var(--canvas);padding-bottom:calc(90px + env(safe-area-inset-bottom));overflow:clip}.identity{font-size:13px;display:flex;align-items:center;gap:7px;color:var(--muted)}.page{padding:calc(12px + env(safe-area-inset-top)) 22px 20px}.page-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px;margin-bottom:12px}.subtle,.note{font-size:12px;color:var(--muted);line-height:1.7}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px}.date-label{width:125px}.date-label input{width:100%;height:44px;font-size:12px;color:var(--muted);border:0;background:transparent;padding:0}.entry-form{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px 0}.weight-field{display:flex;align-items:baseline;justify-content:center;gap:8px}.weight-field input{max-width:calc(100% - 29px);width:264px;border:0;border-bottom:1px solid var(--line);border-radius:0;text-align:center;background:transparent;font-size:76px;font-weight:500;line-height:1.2;letter-spacing:-.035em;font-variant-numeric:tabular-nums;padding:6px 0 10px}.weight-field input.wide-number{font-size:56px}.weight-field input:focus{outline:none;border-bottom:2px solid var(--accent)}.unit{font-size:17px;color:var(--muted)}.last-weight{text-align:center;color:var(--muted);font-size:12px;min-height:20px;margin-top:6px}.habits{border:0;padding:0;margin:6px 0 8px;display:grid;grid-template-columns:repeat(4,1fr);gap:1px}.habits label{display:flex;align-items:center;justify-content:center;gap:5px;font-size:12px;min-height:44px;white-space:nowrap;cursor:pointer}.habits input{width:15px;height:15px;margin:0;accent-color:var(--accent)}.primary{display:block;width:100%;background:var(--accent);color:#fff;border-radius:9px;min-height:48px;padding:12px 14px;font-size:15px;font-weight:600}.primary:hover{filter:brightness(.93)}.save-feedback{min-height:28px;padding:6px 0;font-size:12px;color:var(--accent);text-align:center;line-height:1.6}.error-text{color:var(--error)!important}.text-button{background:transparent;min-height:44px;padding:8px 0;font-size:12px;color:var(--accent)}.text-button:hover{text-decoration:underline;text-underline-offset:4px}.pk-section{margin-top:16px}.pk-result{padding:8px 0 12px;font-size:20px;font-weight:600;line-height:1.4;letter-spacing:-.02em}.pk-result.winner{color:var(--accent)}.pk-result small{display:block;font-weight:400;font-size:12px;color:var(--muted);margin-top:5px;letter-spacing:0}.pair{display:grid;grid-template-columns:1fr 1fr;gap:22px}.pair>div+div{border-left:1px solid var(--line);padding-left:22px}.person-name{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:500}.person-dot{display:inline-block;background:var(--julia);width:7px;height:7px;border-radius:50%;flex-shrink:0}.person-dot.grin{background:var(--blue);border-radius:1px}.pk-change{font-size:12px;font-variant-numeric:tabular-nums;margin-top:4px;white-space:nowrap}.pk-change small{font-size:12px;font-weight:400;margin-left:3px;color:var(--muted)}.pk-baseline{font-size:11px;color:var(--muted);line-height:1.6;margin-top:4px}.pk-note{font-size:11px;margin-top:12px;padding-top:10px;border-top:1px solid var(--line)}.bottom-nav{position:fixed;z-index:10;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:430px;background:var(--surface);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);padding:8px 8px calc(8px + env(safe-area-inset-bottom))}.bottom-nav a{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:4px;min-height:50px;font-size:11px;color:var(--muted);border-radius:8px}.bottom-nav svg{width:22px;height:22px}.bottom-nav a[aria-current=page]{color:var(--accent);font-weight:600;background:var(--soft)}.bottom-nav a:hover{background:var(--soft)}.month-nav{display:flex;align-items:center;justify-content:space-between;margin:0 -8px 4px}.month-nav h2{font-size:19px}.icon-button{display:grid;place-items:center;background:transparent;min-width:44px;min-height:44px;border-radius:8px}.icon-button svg{width:20px;height:20px}.icon-button:hover{background:var(--soft)}.legend{display:flex;align-items:center;gap:18px;font-size:12px;color:var(--muted);min-height:36px}.legend>span{display:flex;align-items:center;gap:5px}.legend .calendar-unit{margin-left:auto;font-size:10px}.weekdays{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));text-align:center;font-size:11px;color:var(--muted);margin:11px 0 8px}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}.calendar-day{min-width:0;min-height:70px;border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:5px 2px;display:flex;flex-direction:column;align-items:center;gap:6px;font-variant-numeric:tabular-nums}.calendar-day.selected{border-color:var(--accent);background:var(--soft);box-shadow:inset 0 0 0 1px var(--accent)}.calendar-day.today{background:#ebe5fa;border-color:#b9aed2}.calendar-day.today.selected{background:#ebe5fa}.day-number{font-size:12px;font-weight:600;line-height:16px}.day-weight{display:flex;justify-content:center;align-items:center;gap:2px;width:100%;font-size:10px;line-height:13px;color:var(--julia);position:relative;white-space:nowrap}.day-weight.grin{color:var(--blue)}.calendar-day.future{color:var(--muted);background:transparent;opacity:.65}.day-detail{margin-top:14px}.day-record{padding:10px 0;border-bottom:1px solid var(--line)}.record-top{display:flex;align-items:baseline;justify-content:space-between}.record-weight{font-size:27px;letter-spacing:-.025em;font-variant-numeric:tabular-nums}.record-weight small{font-size:12px;margin-left:4px;color:var(--muted)}.record-habits{display:flex;gap:16px;font-size:11px;margin-top:10px;color:var(--muted)}.record-habits span{display:flex;align-items:center;gap:3px}.record-habits .done{color:var(--accent)}.habit-mark{width:12px;height:12px}.current-weights{padding:2px 0 16px}.current-number{font-size:40px;letter-spacing:-.035em;font-variant-numeric:tabular-nums;line-height:1.3;margin:8px 0 4px}.current-number small{font-size:10px;margin-left:3px;color:var(--muted)}.current-note{font-size:11px;line-height:1.8;color:var(--muted)}.range-switch{display:flex;background:#eee9f3;border-radius:9px;padding:4px;margin:5px 0 16px;gap:3px}.range-switch button{flex:1;min-height:38px;border-radius:6px;font-size:13px;color:var(--muted);background:transparent}.range-switch .selected{background:var(--surface);color:var(--accent);font-weight:600}.chart{width:100%;height:285px;touch-action:pan-y}.chart svg{width:100%;height:100%;display:block;overflow:visible;stroke:none}.chart text{font-family:inherit;font-size:10px;fill:var(--muted)}.grid-line{stroke:var(--line);stroke-width:1}.data-line{fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.chart-cursor{stroke:var(--muted);stroke-width:1;stroke-dasharray:3 4}.chart-detail{font-size:11px;display:flex;justify-content:center;gap:12px;min-height:28px;padding-top:5px;font-variant-numeric:tabular-nums}.chart-figure figcaption{text-align:center;font-size:10px;color:var(--muted);line-height:1.7;margin-top:5px}.chart-empty{height:100%;display:flex;align-items:center;justify-content:center;font-size:13px;line-height:1.8;text-align:center;color:var(--muted)}.trend-summary{border-top:1px solid var(--line);margin-top:16px;padding-top:14px;display:grid;gap:14px}.trend-row{display:flex;justify-content:space-between;align-items:center;font-size:12px}.trend-row strong{font-weight:500}.trend-row span{color:var(--muted)}.profile-form{padding-top:4px}.setting-field{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:6px 0;font-size:15px;min-height:58px}.setting-field>div{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}.setting-field input{width:110px;text-align:right;min-height:44px;border:0;border-radius:0;background:transparent;font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums}.setting-field input::placeholder{font-size:16px}.profile-form .primary{margin-top:16px}.feedback{min-height:28px;margin-top:10px;font-size:12px;line-height:1.7;color:var(--accent)}.bmi-section{margin-top:10px;border-top:1px solid var(--line);padding-top:12px}.bmi-value{font-size:44px;letter-spacing:-.03em;font-variant-numeric:tabular-nums;padding:8px 0}.formula{font-size:11px;color:var(--muted);margin-top:10px;line-height:1.6}.settings-actions{margin-top:18px;border-top:1px solid var(--line)}.row-button{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:55px;background:transparent;border-bottom:1px solid var(--line);font-size:14px;padding:10px 0}.row-button svg{width:19px;height:19px;color:var(--muted)}.row-button:hover{color:var(--accent)}.sync-status{font-size:11px;color:var(--muted);margin:16px 0;text-align:center}.network-message{font-size:12px;line-height:1.6;padding:11px 14px;margin:0 22px 15px;background:#fff0d9;border-radius:8px;color:#79551b}.login-page{max-width:430px;min-height:100svh;background:var(--canvas);margin:auto;padding:17vh 36px 32px}.login-symbol{width:42px;height:42px;color:var(--accent);margin-bottom:24px}.login-page h1{font-size:31px}.login-subtitle{font-size:14px;line-height:1.8;color:var(--muted);margin:12px 0 36px}.login-page label{display:block;font-size:13px;margin-bottom:9px}.login-page input{width:100%;border:1px solid #b3a5b4;border-radius:9px;background:var(--surface);padding:13px 14px;font-size:17px;min-height:50px}.login-page .primary{margin-top:12px}.login-page>.note{text-align:center;margin-top:18px}.loading-shell{max-width:430px;min-height:100svh;background:var(--canvas);padding:42px 24px;margin:auto}.skeleton{background:#f0e4ee;border-radius:7px}.skeleton.title{width:140px;height:24px}.skeleton.number{height:100px;margin:70px 15px 30px}.skeleton.bar{height:48px;margin:20px 0}
@media(max-width:360px){.page{padding-left:16px;padding-right:16px}.page-heading h1{font-size:22px}.entry-form{padding-left:12px;padding-right:12px}.weight-field input{font-size:66px}.pair{gap:16px}.pair>div+div{padding-left:16px}.current-number{font-size:36px}.calendar-grid{gap:3px}.calendar-day{min-height:68px}.day-weight{font-size:9px}.legend{gap:12px}.legend .calendar-unit{font-size:9px}.record-habits{gap:12px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.app-shell[data-person="grin"]{--accent:var(--blue);--soft:#e7f0ff}.julia .current-number,.julia .record-weight,.julia .pk-change{color:var(--julia)}.grin .current-number,.grin .record-weight,.grin .pk-change{color:var(--blue)}.pk-result.winner.julia{color:var(--julia)}.pk-result.winner.grin{color:var(--blue)}

.weight-field input{color:var(--accent)}
.day-record.julia .record-habits .done{color:var(--julia)}.day-record.grin .record-habits .done{color:var(--blue)}

.current-reading{display:flex;align-items:center;gap:7px;white-space:nowrap}.current-reading .current-number{margin:7px 0 2px}.current-bmi{display:flex;flex-direction:column;gap:2px;font-size:9px;line-height:1.3;color:var(--muted);font-variant-numeric:tabular-nums}.current-bmi strong{font-size:12px;font-weight:500}.goal-progress{border-top:1px solid var(--line);padding-top:10px;margin-top:10px}.progress-label{display:flex;align-items:baseline;justify-content:space-between;gap:5px;font-size:11px;color:var(--muted);margin-top:8px}.progress-label strong{font-size:13px;font-weight:600}.julia .progress-label strong{color:var(--julia)}.grin .progress-label strong{color:var(--blue)}.progress-track{height:4px;border-radius:2px;background:#e1dce9;margin-top:7px;overflow:hidden}.progress-track span{display:block;height:100%;background:var(--julia)}.grin .progress-track span{background:var(--blue)}.progress-note{font-size:10px;color:var(--muted);line-height:1.7}

.heading-with-person{display:flex;align-items:baseline;gap:9px;min-width:0}.heading-with-person .identity{font-size:12px;color:var(--accent)}.heading-with-person h1{white-space:nowrap}.weight-down{width:8px;height:11px;flex-shrink:0;stroke-width:1.6}.day-weight{gap:1px}.calendar-unit .weight-down{width:9px}.feedback:empty{min-height:12px;margin-top:4px}.network-message{margin-top:12px}
@media(max-width:360px){.heading-with-person{gap:5px}.heading-with-person .identity{font-size:10px}.date-label{width:116px}}

.bmi-overview{display:flex;align-items:baseline;gap:14px}.bmi-category{font-size:12px;color:var(--muted)}.bmi-reference{margin-top:12px}.reference-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;font-size:12px}.reference-row span{color:var(--muted)}.reference-row strong{font-size:16px;font-weight:550;white-space:nowrap;color:var(--accent)}.bmi-guidance{font-size:13px;line-height:1.7;margin:8px 0 5px}.bmi-explanation{font-size:11px;line-height:1.7;color:var(--muted);margin-top:10px}.bmi-explanation summary{min-height:34px;cursor:pointer;padding:7px 0}.bmi-explanation p{margin:7px 0}.bmi-explanation a{text-decoration:underline;text-underline-offset:3px}.bmi-value{color:var(--accent)}

@media(max-width:380px){.current-reading .current-number{font-size:35px}.current-reading{gap:5px}}

.pk-result-title{display:flex;align-items:center;gap:7px}.trophy-icon{width:21px;height:21px;color:#946519;fill:#ffe7aa;stroke-width:1.5}.pk-weight{font-size:28px;letter-spacing:-.025em;font-variant-numeric:tabular-nums;margin-top:7px;white-space:nowrap}.pk-weight small{font-size:11px;margin-left:3px;color:var(--muted)}.julia .pk-weight{color:var(--julia)}.grin .pk-weight{color:var(--blue)}.pk-status{font-size:11px;color:var(--muted);margin-top:4px}.pk-baseline{font-size:10px;margin-top:3px}.pk-result{padding-bottom:10px}
.bmi-scale{margin:14px 0 10px}.bmi-scale-label{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:8px}.bmi-bands{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px}.bmi-band{text-align:center;min-width:0;position:relative}.bmi-band-name{display:block;font-size:11px;color:var(--ink);font-weight:500}.bmi-band-range{display:block;font-size:10px;white-space:nowrap;color:var(--muted);margin-top:5px;font-variant-numeric:tabular-nums}.bmi-band-color{display:block;height:15px;margin:9px 0 7px;border-radius:4px;background:#cddff7;position:relative}.bmi-band[data-category="正常范围"] .bmi-band-color{background:#cbe6d4}.bmi-band[data-category="超重"] .bmi-band-color{background:#f8d9aa}.bmi-band[data-category="肥胖"] .bmi-band-color{background:#f0c3d5}.bmi-band-weight{display:block;font-size:10px;line-height:1.7;white-space:nowrap;color:var(--ink);font-variant-numeric:tabular-nums}.bmi-band-current{display:block;min-height:19px;font-size:10px;font-weight:600;margin-top:4px;color:var(--ink)}.bmi-band.is-current .bmi-band-color{outline:1.5px solid var(--ink);outline-offset:2px}.bmi-band.is-current .bmi-band-name{font-weight:650}.bmi-guidance{font-size:12px}.bmi-reference{margin-top:5px}
@media(max-width:360px){.bmi-band-weight{font-size:9px}.bmi-band-range{font-size:9px}}

/* A generous recording surface with a compact comparison beneath. */
#page-today .entry-form{padding:18px 18px 2px}#page-today .entry-form .page-heading{margin-bottom:12px}#page-today .weight-field input{width:280px;font-size:clamp(76px,24vw,96px);padding:10px 0 14px;line-height:1.2}#page-today .weight-field input.wide-number{font-size:60px}#page-today .last-weight{margin-top:9px}#page-today .habits{margin:10px 0 12px}#page-today .primary{min-height:50px}#page-today .save-feedback{padding:8px 0;min-height:32px}.pk-section{margin-top:18px;padding:0 2px}.pk-section>.section-heading{min-height:38px;margin-bottom:10px}.pk-result{padding:0;font-size:14px;line-height:1.4}.pk-result-title{gap:5px}.trophy-icon{width:18px;height:18px}.pk-weight{font-size:32px;margin-top:5px}.pk-change{margin-top:2px;font-size:11px}.pk-status{font-size:10px}.pk-pair{padding-bottom:4px}
@media(max-width:360px){#page-today .entry-form{padding-left:12px;padding-right:12px}#page-today .weight-field input.wide-number{font-size:52px}.pk-result{font-size:13px}}