:root{--c-bg: #fbfdfa;--c-bg2: #f4f8f1;--c-bg3: #edf4ec;--c-card: rgba(255, 255, 255, .9);--c-border: rgba(22, 78, 52, .12);--c-text: #17211c;--c-muted: #6d776f;--c-hint: #a6ada7;--c-green: #1aa565;--c-green-deep: #063f25;--c-green-bg: #e8f7ec;--c-amber: #f08a3d;--c-amber-bg: #fff0e5;--c-red: #e24b4a;--c-red-bg: #fcebeb;--c-blue: #2876c9;--c-blue-bg: #e7f1ff;--shadow: 0 18px 48px rgba(31, 72, 47, .12);--shadow-soft: 0 10px 28px rgba(35, 79, 55, .08)}@media (prefers-color-scheme: dark){:root{--c-bg: #fbfdfa;--c-bg2: #f4f8f1;--c-bg3: #edf4ec;--c-card: rgba(255, 255, 255, .9);--c-border: rgba(22, 78, 52, .12);--c-text: #17211c;--c-muted: #6d776f;--c-hint: #a6ada7;--shadow: 0 18px 48px rgba(31, 72, 47, .12)}}*{box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.6;max-width:480px;min-height:100vh;margin:0 auto;padding:0;background:radial-gradient(circle at 14% 0%,rgba(196,230,198,.55),transparent 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7px;border-radius:10px;white-space:nowrap}.badge-high{background:var(--c-green-bg);color:var(--c-green)}.badge-med{background:var(--c-amber-bg);color:var(--c-amber)}.badge-low{background:var(--c-red-bg);color:var(--c-red)}.adjust-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}.adjust-tab.active{color:var(--c-blue);background:var(--c-blue-bg);border-color:transparent}input[type=range]{width:100%;accent-color:var(--c-blue)}.slider-footer{display:flex;justify-content:space-between;align-items:center;color:var(--c-muted);font-size:12px;margin-top:2px}.weight-display,.step-weight-display{color:var(--c-text);font-weight:700;font-size:15px}.adjust-stepper{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-items:center}.step-weight-display{grid-column:1 / -1;text-align:center;padding:4px 0}.adjust-input{display:flex;align-items:center;gap:8px}.adjust-input input,.modal-card input,.goal-input{width:100%;min-height:42px;border-radius:10px;border:.5px solid var(--c-border);background:var(--c-bg);color:var(--c-text);padding:8px 10px;outline:none}.portion-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:12px}.portion-presets .active{color:var(--c-green);background:var(--c-green-bg);border-color:transparent}.weight-adjuster{display:grid;gap:14px}.weight-stepper{display:grid;grid-template-columns:48px 1fr 48px;align-items:center;gap:12px}.stepper-btn{width:44px;height:44px;border-radius:50%;border:.5px solid var(--c-border);background:var(--c-bg);color:var(--c-text);font-size:22px;font-weight:400;line-height:1;cursor:pointer;display:grid;place-items:center;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.stepper-btn:active{background:var(--c-bg2);transform:scale(.97)}.weight-display{display:grid;justify-items:center;line-height:1}.weight-num{font-size:32px;font-weight:700;letter-spacing:0}.weight-unit{font-size:12px;color:var(--c-muted);margin-top:2px}.weight-slider{width:100%;accent-color:var(--c-blue);margin:0}.portion-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.portion-chip{padding:8px 4px;border-radius:8px;background:transparent;border:.5px solid 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p{margin:0}.spinner{width:32px;height:32px;border:2px solid var(--c-border);border-top-color:var(--c-blue);border-radius:50%;animation:spin .8s linear infinite}#toast-container{position:fixed;z-index:100;left:50%;bottom:calc(76px + env(safe-area-inset-bottom));width:min(448px,calc(100vw - 32px));transform:translate(-50%);display:grid;gap:8px;pointer-events:none}.toast{padding:11px 13px;border-radius:12px;color:var(--c-text);background:var(--c-bg);border:.5px solid var(--c-border);box-shadow:var(--shadow);font-size:13px}.toast-error{border-color:color-mix(in srgb,var(--c-red) 42%,var(--c-border))}.toast-undo{display:flex;align-items:center;justify-content:space-between;gap:12px;pointer-events:auto}.toast-undo-btn{background:transparent;border:.5px solid var(--c-green);color:var(--c-green);padding:4px 10px;border-radius:8px;font-size:12px;font-weight:600;cursor:pointer}.toast-undo-btn:hover{background:color-mix(in srgb,var(--c-green) 12%,transparent)}.thumb-letter{font-size:22px;font-weight:600;color:var(--c-green);background:var(--c-bg3)}.thumb-fallback-letter{color:var(--c-green);background:radial-gradient(circle at 50% 34%,rgba(255,255,255,.76),transparent 34%),var(--c-green-bg);font-weight:800}.demo-badge{display:inline-block;margin-left:6px;padding:2px 7px;font-size:10px;background:color-mix(in srgb,var(--c-amber) 18%,transparent);color:color-mix(in srgb,var(--c-amber) 70%,var(--c-text));border-radius:999px;font-weight:700}.meal-pill{display:inline-flex;align-items:center;justify-content:center;min-width:44px;padding:3px 10px;border-radius:999px;color:var(--c-green);background:var(--c-green-bg);font-weight:800}.record-actions{display:flex;flex-direction:column;align-items:flex-end;gap:15px}.record-btns{display:flex;gap:8px}.btn-sm{display:inline-flex;align-items:center;justify-content:center;gap:5px;min-height:30px;padding:4px 10px!important;font-size:13px!important;border-radius:8px!important;color:var(--c-muted);background:#ffffffc2;border-color:#132d211f}.record-main{min-width:0}.empty-cta{padding:36px 18px;display:flex;flex-direction:column;align-items:center;gap:10px;border-style:solid;background:var(--c-card)}.empty-emoji{font-size:40px;line-height:1}.empty-title{font-size:15px;font-weight:600;color:var(--c-text)}.empty-hint{font-size:12px;color:var(--c-muted);margin-bottom:6px}.trend-bar{cursor:pointer}.trend-bar:hover rect:nth-child(2),.trend-bar:focus-visible rect:nth-child(2){opacity:.36!important;filter:brightness(1.05)}.trend-bar:focus{outline:none}.trend-bar:focus-visible rect:nth-child(1){fill:color-mix(in srgb,var(--c-green) 12%,transparent)}.key-input-row{display:flex;gap:6px;align-items:center}.key-input-row input{flex:1}.key-input-row .key-toggle{padding:8px 10px;font-size:14px;line-height:1}.hidden{display:none!important}.boot-screen{min-height:60vh;display:grid;place-items:center;text-align:center;gap:14px;color:var(--c-muted)}.auth-screen{display:grid;place-items:center;padding:24px 16px}.auth-card{width:100%;max-width:360px;background:var(--c-card);border:.5px solid var(--c-border);border-radius:16px;padding:24px 20px 20px;display:grid;gap:12px;box-shadow:0 1px #0000000a}.auth-title{margin:0;font-size:22px;font-weight:600;color:var(--c-text)}.auth-sub{margin:0 0 4px;color:var(--c-muted);font-size:14px}.auth-card label{font-size:13px;color:var(--c-muted);margin-top:6px}.auth-card input{width:100%;padding:10px 12px;border-radius:10px;border:.5px solid var(--c-border);background:var(--c-bg);color:var(--c-text);font-size:15px;margin-top:4px}.auth-card input:focus{outline:2px solid var(--c-green);outline-offset:1px}.auth-error{background:#dc354514;color:var(--c-red);padding:8px 10px;border-radius:8px;font-size:14px;margin-top:4px}.auth-submit{width:100%;margin-top:10px}.auth-switch{width:100%;margin-top:4px}.edit-header{position:sticky;top:0;z-index:18;margin:0 -16px 14px;padding:12px 16px;background:color-mix(in srgb,var(--c-bg) 94%,transparent);border-bottom:.5px solid var(--c-border);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.edit-header .row{display:flex;align-items:center;justify-content:space-between;gap:12px}.edit-info{display:flex;align-items:center;gap:8px;margin-top:8px}.edit-time{color:var(--c-muted);font-size:14px}.edit-foods{margin-bottom:16px}.image-viewer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;background:#000000e6;display:flex;align-items:center;justify-content:center;padding:20px}.image-viewer-content{position:relative;max-width:100%;max-height:100%;display:flex;align-items:center;justify-content:center}.image-viewer-close{position:fixed;top:20px;right:20px;z-index:1001;background:#fff3;border:none;color:#fff;font-size:24px;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.image-viewer-close:hover{background:#ffffff4d}.image-viewer-img{max-width:100%;max-height:90vh;object-fit:contain;border-radius:8px;cursor:pointer}.image-viewer-loading,.image-viewer-error{color:#fff;text-align:center;padding:40px}.image-viewer-loading .spinner{width:40px;height:40px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 16px}@keyframes spin{to{transform:rotate(360deg)}}