:root{--canvas:#f3f5fb;--surface:#ffffff;--surface-soft:#f8f9fd;--surface-blue:#eef1ff;--primary:#6377f2;--primary-strong:#5368eb;--primary-soft:#e9edff;--ink:#171a27;--muted:#7f8598;--line:#e8eaf2;--line-strong:#dde1ed;--success:#3cc884;--danger:#d65858;--shadow-sm:0 8px 24px rgba(55,67,122,.07);--shadow-md:0 18px 48px rgba(55,67,122,.11);--radius-xl:28px;--radius-lg:22px;--radius-md:16px;font-family:Inter,SF Pro Display,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body,html{width:100%;min-height:100%;margin:0}body{min-height:100dvh;overflow:hidden;background:var(--canvas);color:var(--ink);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}button,input,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}.app-shell{position:relative;width:100%;height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden;background:#f7f8fc}.topbar{flex:0 0 auto;min-height:84px;display:flex;align-items:center;gap:13px;padding:max(14px,env(safe-area-inset-top)) 18px 12px;background:rgba(247,248,252,.96)}.auth-mark,.coach-avatar{width:50px;height:50px;flex:0 0 50px;display:grid;place-items:center;border:1px solid #dce2ff;border-radius:18px;background:var(--primary-soft);color:var(--primary-strong);box-shadow:var(--shadow-sm)}.coach-avatar svg{width:25px;height:25px}.coach-title{min-width:0;flex:1}.coach-title h1{display:flex;align-items:center;gap:8px;margin:0;color:var(--ink);font-size:20px;line-height:1.25;font-weight:760;letter-spacing:-.025em}.coach-title h1 span{padding:4px 8px;border:1px solid #dce1ff;border-radius:999px;background:#f7f8ff;color:var(--primary);font-size:10px;font-weight:650;letter-spacing:0}.coach-title p{display:flex;align-items:center;gap:7px;margin:6px 0 0;color:var(--muted);font-size:11px;line-height:1.2}.dot{width:7px;height:7px;flex:0 0 7px;border-radius:50%;background:#a4a9b8}.dot.online{background:var(--success);box-shadow:0 0 0 4px rgba(60,200,132,.11)}.dot.error{background:var(--danger);box-shadow:0 0 0 4px rgba(214,88,88,.1)}.close-button,.photo-button,.settings-button{width:46px;height:46px;flex:0 0 46px;display:grid;place-items:center;border:1px solid var(--line-strong);border-radius:16px;background:rgba(255,255,255,.92);color:#70778c;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease,transform .18s ease}.close-button svg,.photo-button svg,.settings-button svg{width:21px;height:21px}.close-button:hover,.photo-button:hover,.settings-button:hover{border-color:#c7cffb;background:var(--primary-soft);color:var(--primary)}.photo-button:active,.settings-button:active{transform:scale(.96)}.sync-strip{flex:0 0 auto;min-height:72px;justify-content:space-between;margin:0 16px 10px;padding:13px 13px 13px 16px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.96);box-shadow:var(--shadow-sm)}.sync-copy,.sync-strip{display:flex;align-items:center;gap:12px}.sync-copy{min-width:0}.sync-copy>svg{width:28px;height:28px;flex:0 0 auto;color:var(--primary)}.sync-copy div{min-width:0;display:grid;gap:3px}.sync-copy strong{color:var(--ink);font-size:13px;line-height:1.25;font-weight:700}.sync-copy small{max-width:170px;overflow:hidden;color:var(--muted);font-size:10px;line-height:1.25;text-overflow:ellipsis;white-space:nowrap}.sync-strip>button{min-width:80px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 14px;border:1px solid #dfe3f2;border-radius:15px;background:var(--surface);color:#4f5669;font-size:12px;font-weight:700;cursor:pointer}.sync-strip>button svg{width:17px;height:17px;color:var(--primary)}.sync-strip>button:hover{border-color:#cbd3ff;color:var(--primary)}.sync-strip>button:disabled{opacity:.5;cursor:default}.supplement-notice,.sync-notice{flex:0 0 auto;margin:0 18px 8px;color:var(--muted);font-size:11px;line-height:1.45}.supplement-notice.success,.sync-notice.success{color:#25865b}.supplement-notice.error,.sync-notice.error{color:var(--danger)}.nutrition-panel{flex:0 0 auto;margin:0 16px 10px;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow-sm)}.nutrition-hero-content{padding:16px 17px 12px}.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.section-heading .eyebrow{display:flex;align-items:center;gap:5px;color:var(--primary);font-size:10px;line-height:1.2;font-weight:760;letter-spacing:.06em}.section-heading .eyebrow svg{width:13px;height:13px}.section-heading h2{margin:5px 0 0;color:var(--muted);font-size:10px;line-height:1.35;font-weight:500}.section-heading time{color:#9ba0b1;font-size:10px;font-weight:650}.energy-block{margin-top:12px}.energy-readout{display:flex;align-items:flex-end;gap:7px}.energy-readout strong{color:var(--ink);font-size:34px;line-height:.88;font-weight:780;letter-spacing:-.055em;font-variant-numeric:tabular-nums}.energy-readout span{display:flex;gap:4px;padding-bottom:2px;color:#a0a5b4;font-size:9px;font-weight:700;letter-spacing:.05em}.energy-readout span b{color:var(--primary);font-size:10px}.energy-track{width:100%;height:5px;margin-top:11px;overflow:hidden;border-radius:999px;background:#edf0f6}.energy-track span{display:block;height:100%;border-radius:inherit;background:var(--primary)}.nutrition-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line)}.nutrition-metric{min-width:0;padding:11px 12px 12px;border-right:1px solid var(--line)}.nutrition-metric:last-child{border-right:0}.metric-title{display:flex;align-items:baseline;justify-content:space-between;gap:4px}.metric-title strong{color:#656b7c;font-size:10px;font-weight:650}.metric-title small{display:none}.nutrition-metric p{display:flex;align-items:baseline;gap:2px;margin:7px 0 8px}.nutrition-metric p b{color:var(--ink);font-size:20px;line-height:1;font-weight:760;letter-spacing:-.035em;font-variant-numeric:tabular-nums}.nutrition-metric:first-child p b{color:var(--primary)}.nutrition-metric p em,.nutrition-metric p span{color:#a2a7b5;font-size:8px;font-weight:650;font-style:normal}.nutrition-metric p em{margin-left:auto}.metric-track{height:3px;overflow:hidden;border-radius:999px;background:#edf0f5}.metric-track span{display:block;height:100%;border-radius:inherit;background:#9ea5b8}.nutrition-metric.reached .metric-track span,.nutrition-metric:first-child .metric-track span{background:var(--primary)}.nutrition-note{display:none}.connect-banner{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 16px 10px;padding:12px 14px;border:1px solid #dfe3f4;border-radius:16px;background:var(--surface-blue);color:var(--ink);text-align:left;cursor:pointer}.connect-banner strong{font-size:12px}.connect-banner span{color:var(--primary);font-size:10px}.messages{min-height:0;flex:1 1 auto;overflow-y:auto;overscroll-behavior:contain;scroll-behavior:smooth;padding:6px 16px 14px;scrollbar-width:thin;scrollbar-color:#d8dceb transparent}.message-row{display:flex;align-items:flex-start;gap:9px;margin:13px 0}.message-row.user{justify-content:flex-end}.message-avatar{width:30px;height:30px;flex:0 0 30px;display:grid;place-items:center;margin-top:3px;border:1px solid #dfe3fb;border-radius:11px;background:var(--primary-soft);color:var(--primary)}.message-avatar svg{width:14px;height:14px}.bubble{max-width:min(84%,660px);padding:13px 15px 10px;border:1px solid var(--line);border-radius:8px 20px 20px 20px;background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}.user .bubble{border-color:var(--primary);border-radius:20px 8px 20px 20px;background:var(--primary);color:white;box-shadow:0 12px 30px rgba(82,103,235,.2)}.bubble p{margin:0;white-space:pre-wrap;font-size:14px;line-height:1.65;overflow-wrap:anywhere}.bubble p strong{color:var(--primary-strong);font-weight:760}.user .bubble p strong{color:white}.bubble small{display:block;margin-top:7px;color:#a2a6b3;font-size:9px;text-align:right}.user .bubble small{color:rgba(255,255,255,.68)}.message-images{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;margin-bottom:10px}.message-images img{width:100%;max-height:300px;object-fit:cover;border:1px solid rgba(255,255,255,.55);border-radius:14px}.message-images img:only-child{grid-column:1/-1}.loading-card,.thinking{width:fit-content;display:flex;align-items:center;gap:8px;margin:10px 0 10px 39px;padding:10px 13px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--muted);font-size:11px;box-shadow:var(--shadow-sm)}.thinking svg{width:13px;height:13px;color:var(--primary)}.error-toast{flex:0 0 auto;margin:0 16px 7px;padding:10px 12px;border:1px solid #f0cece;border-radius:14px;background:#fff7f7;color:var(--danger);font-size:11px}.selected-images{flex:0 0 auto;min-height:40px;display:flex;align-items:center;justify-content:space-between;padding:0 18px;color:var(--primary);font-size:11px}.selected-images button{min-width:44px;min-height:40px;border:0;background:transparent;color:var(--danger);cursor:pointer}.composer{flex:0 0 auto;min-height:72px;display:flex;align-items:center;gap:9px;margin:0 12px 8px;padding:9px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.97);box-shadow:var(--shadow-md)}.composer textarea{min-width:0;height:46px;min-height:46px;max-height:110px;flex:1 1 auto;resize:none;overflow-y:auto;border:0;border-radius:16px;outline:0;padding:12px 4px;background:transparent;color:var(--ink);font-size:14px;line-height:1.45}.composer textarea::placeholder{color:#a4a9b8}.send-button{width:48px;height:48px;flex:0 0 48px;display:grid;place-items:center;border:0;border-radius:17px;background:var(--primary);color:white;cursor:pointer;box-shadow:0 9px 22px rgba(82,103,235,.24);transition:background .18s ease,transform .18s ease}.send-button svg{width:21px;height:21px}.send-button span{display:none}.send-button:hover{background:var(--primary-strong)}.send-button:active{transform:scale(.96)}.send-button:disabled{opacity:.36;box-shadow:none;cursor:default}.bottom-nav{flex:0 0 auto;min-height:64px;display:grid;grid-template-columns:repeat(2,1fr);padding:0 14px max(3px,env(safe-area-inset-bottom));border-top:1px solid var(--line);background:rgba(255,255,255,.97)}.bottom-nav button{position:relative;min-height:60px;display:flex;align-items:center;justify-content:center;gap:8px;border:0;background:transparent;color:#8c92a3;font-size:12px;font-weight:650;cursor:pointer}.bottom-nav button:after{content:"";position:absolute;bottom:5px;left:38%;right:38%;height:3px;border-radius:999px;background:transparent}.bottom-nav button.active{color:var(--primary)}.bottom-nav button.active:after{background:var(--primary)}.bottom-nav svg{width:21px;height:21px}.supplements-page{min-height:0;flex:1 1 auto;overflow-y:auto;padding:8px 16px 26px;background:#f7f8fc}.supplements-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;padding:20px;border:1px solid var(--line);border-radius:26px;background:var(--surface);box-shadow:var(--shadow-sm)}.supplements-hero>div{min-width:0}.supplements-hero span{display:block;margin-bottom:6px;color:var(--primary);font-size:10px;font-weight:760;letter-spacing:.08em}.supplements-hero h2{margin:0 0 8px;color:var(--ink);font-size:32px;line-height:1;font-weight:780;letter-spacing:-.04em}.supplements-hero p{max-width:330px;margin:0;color:var(--muted);font-size:11px;line-height:1.6}.supplements-hero button{min-height:46px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 15px;border:0;border-radius:15px;background:var(--primary);color:white;font-size:11px;font-weight:720;cursor:pointer}.supplements-hero button svg{width:16px;height:16px}.supplement-list{display:grid;gap:10px;margin-top:12px}.supplement-card{display:flex;align-items:flex-start;gap:13px;padding:16px;border:1px solid var(--line);border-radius:20px;background:var(--surface);box-shadow:var(--shadow-sm)}.supplement-icon{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:14px;background:var(--primary-soft);color:var(--primary)}.supplement-icon svg{width:21px;height:21px}.supplement-content{min-width:0;flex:1}.supplement-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.supplement-title-row>div{min-width:0}.supplement-title-row small{display:block;margin-bottom:3px;color:#999ead;font-size:8px;font-weight:700;letter-spacing:.06em}.supplement-title-row h3{margin:0;color:var(--ink);font-size:14px;line-height:1.4;overflow-wrap:anywhere}.supplement-title-row>span{max-width:110px;flex:0 0 auto;padding:4px 7px;border-radius:999px;background:#eef8f3;color:#29835b;font-size:9px;line-height:1.3;text-align:center}.supplement-content>p{margin:8px 0;color:#72788a;font-size:11px;line-height:1.55}.supplement-content footer{color:#a0a5b3;font-size:9px}.modal-backdrop{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:18px;background:rgba(24,28,45,.46);backdrop-filter:blur(12px)}.modal{position:relative;width:min(100%,440px);max-height:calc(100dvh - 32px);overflow-y:auto;padding:26px 22px 22px;border:1px solid rgba(255,255,255,.78);border-radius:26px;background:var(--surface);box-shadow:0 28px 80px rgba(31,38,72,.24)}.modal h2{margin:0 48px 8px 0;color:var(--ink);font-size:22px;letter-spacing:-.025em}.modal>p{margin:0 0 20px;color:var(--muted);font-size:12px;line-height:1.55}.modal form{display:grid;gap:9px}.modal label{color:#62687a;font-size:11px;font-weight:650}.modal input{height:50px;border:1px solid var(--line-strong);border-radius:15px;outline:0;padding:0 13px;background:var(--surface-soft);color:var(--ink);font-size:14px}.modal input:focus{border-color:#b7c1ff;box-shadow:0 0 0 4px rgba(99,119,242,.09)}.modal form button{min-height:48px;margin-top:6px;border:0;border-radius:15px;background:var(--primary);color:white;font-weight:760;cursor:pointer}.modal form button:disabled{opacity:.45}.close-button{position:absolute;top:12px;right:12px;border-color:transparent;background:transparent}.model-status{display:flex;align-items:flex-start;gap:10px;margin:0 0 16px;padding:12px;border:1px solid #efe3ca;border-radius:14px;background:#fffbf3;color:#806b40}.model-status.connected{border-color:#d7eee2;background:#f1faf6;color:#2c7d59}.model-status.error{border-color:#f0cece;background:#fff7f7;color:var(--danger)}.model-status.checking{border-color:#d9dff9;background:var(--surface-blue);color:#5668b9}.model-status .dot{flex:0 0 auto;margin-top:5px}.model-status div{min-width:0;display:grid;gap:3px}.model-status strong{font-size:12px}.model-status small{overflow-wrap:anywhere;font-size:10px;line-height:1.45}.test-current-button{width:100%;min-height:48px;margin-top:10px;border:1px solid var(--line-strong);border-radius:15px;background:var(--surface);color:var(--ink);font-weight:650;cursor:pointer}.test-current-button:hover{border-color:#bdc6f6;color:var(--primary)}.test-current-button:disabled{opacity:.45}.auth-shell{min-height:100dvh;display:grid;place-items:center;padding:20px;background:var(--canvas)}.auth-card{width:min(100%,430px);padding:30px 26px;border:1px solid var(--line);border-radius:28px;background:var(--surface);box-shadow:var(--shadow-md)}.auth-card .auth-mark{margin-bottom:26px;color:white;background:var(--primary);font-size:20px;font-weight:800}.auth-card h1{margin:0 0 9px;color:var(--ink);font-size:27px;letter-spacing:-.04em}.auth-card>p{margin:0 0 25px;color:var(--muted);font-size:12px;line-height:1.6}.auth-card form{display:grid;gap:8px}.auth-card label{color:#646a7b;font-size:11px;font-weight:650}.auth-card input{height:51px;border:1px solid var(--line-strong);border-radius:15px;padding:0 13px;outline:0;background:var(--surface-soft);color:var(--ink);font-size:15px}.auth-card input:focus{border-color:#b8c2ff;box-shadow:0 0 0 4px rgba(99,119,242,.09)}.auth-card input[readonly]{color:#73798b;background:#f0f2f7;cursor:default}.auth-card form button{min-height:50px;margin-top:10px;border:0;border-radius:15px;background:var(--primary);color:white;font-weight:760;cursor:pointer}.auth-card form button:disabled{opacity:.4}.auth-inline-error{margin-top:-2px;color:var(--danger);font-size:10px;line-height:1.4}.auth-error,.auth-warning{margin:-9px 0 17px;padding:10px 12px;border:1px solid #eee1c9;border-radius:13px;background:#fffbf3;color:#7f693d;font-size:11px;line-height:1.45}.auth-error{margin:14px 0 0;border-color:#f0cece;background:#fff7f7;color:var(--danger)}@media (max-width:420px){.topbar{min-height:68px;padding:max(9px,env(safe-area-inset-top)) 13px 8px;gap:10px}.coach-avatar{width:42px;height:42px;flex-basis:42px;border-radius:15px}.coach-avatar svg{width:22px;height:22px}.coach-title h1{font-size:18px}.coach-title h1 span{padding:3px 7px;font-size:9px}.coach-title p{margin-top:4px;font-size:10px}.settings-button{width:40px;height:40px;flex-basis:40px;border-radius:14px}.sync-strip{min-height:58px;margin:0 10px 8px;padding:8px 9px 8px 13px;border-radius:20px}.sync-copy{gap:9px}.sync-copy>svg{width:23px;height:23px}.sync-copy strong{font-size:12px}.sync-copy small{font-size:9px}.sync-strip>button{min-width:68px;min-height:38px;padding:0 10px;border-radius:13px;font-size:11px}.nutrition-panel{margin-left:12px;margin-right:12px}.nutrition-hero-content{padding:10px 13px 8px}.section-heading{align-items:center}.section-heading h2{display:none}.section-heading .eyebrow{font-size:9px}.energy-block{margin-top:8px}.energy-readout strong{font-size:29px}.energy-track{height:4px;margin-top:8px}.nutrition-metric{padding:8px 9px 9px}.metric-title strong{font-size:9px}.nutrition-metric p{margin:5px 0 6px}.nutrition-metric p b{font-size:17px}.nutrition-metric.estimated .metric-title small{display:inline;color:#9ca2b2;font-size:7px}.messages{padding:3px 12px 10px}.bubble{max-width:86%}.composer{min-height:64px;margin:0 8px 7px;padding:7px;border-radius:21px}.composer textarea{height:44px;min-height:44px;padding-top:11px;padding-bottom:11px;font-size:13px}.photo-button,.send-button{width:44px;height:44px;flex-basis:44px;border-radius:15px}.bottom-nav{min-height:58px}.bottom-nav button{min-height:54px}.supplements-page{padding-left:12px;padding-right:12px}.supplements-hero{align-items:flex-start;padding:17px}.supplements-hero h2{font-size:28px}.supplements-hero p{max-width:220px}.supplements-hero button{width:46px;padding:0;font-size:0}.supplements-hero button svg{width:19px;height:19px}}@media (orientation:landscape) and (max-height:560px) and (max-width:960px){.topbar{min-height:64px;padding-top:8px;padding-bottom:8px}.coach-avatar{width:42px;height:42px;flex-basis:42px}.nutrition-panel,.sync-strip{display:none}.bottom-nav{min-height:54px}.bottom-nav button{min-height:50px}.composer{min-height:60px}}@media (min-width:980px){body{display:grid;place-items:center;padding:0}.app-shell{width:min(100%,1500px);display:grid;grid-template-columns:220px minmax(520px,1fr) 328px;grid-template-rows:108px auto 1fr auto;background:#f7f8fc;box-shadow:0 0 70px rgba(50,61,106,.08)}.topbar{grid-column:2/4;grid-row:1;min-height:108px;padding:25px 30px 20px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.76)}.coach-avatar{width:54px;height:54px;flex-basis:54px}.coach-title h1{font-size:23px}.coach-title p{font-size:11px}.settings-button{margin-left:auto}.bottom-nav{position:relative;grid-column:1;grid-row:1/5;min-height:0;display:flex;flex-direction:column;align-items:stretch;gap:8px;padding:122px 16px 24px;border-top:0;border-right:1px solid var(--line);background:var(--surface)}.bottom-nav:before{content:"国彬的私人教练";position:absolute;top:38px;left:22px;right:18px;color:var(--ink);font-size:17px;line-height:1.3;font-weight:780;letter-spacing:-.025em}.bottom-nav button{min-height:52px;justify-content:flex-start;gap:12px;padding:0 16px;border-radius:16px;font-size:13px}.bottom-nav button:after{display:none}.bottom-nav button.active{background:var(--primary-soft);color:var(--primary-strong)}.bottom-nav svg{width:22px;height:22px}.sync-strip{grid-column:3;grid-row:2;min-height:78px;margin:20px 20px 10px 0}.sync-copy small{max-width:140px}.sync-notice{grid-column:3;grid-row:2;align-self:end;margin:0 28px -7px 14px}.nutrition-panel{grid-column:3;grid-row:3;align-self:start;margin:6px 20px 0 0}.nutrition-hero-content{padding:21px 20px 15px}.energy-readout strong{font-size:44px}.nutrition-note{display:block;margin:0;padding:12px 18px 14px;border-top:1px solid var(--line);color:#979cab;font-size:9px;line-height:1.5}.connect-banner{grid-column:2;grid-row:2;z-index:2;margin:18px 28px 0}.messages{grid-column:2;grid-row:2/4;padding:24px 30px 160px}.message-row{margin:17px 0}.message-avatar{width:34px;height:34px;flex-basis:34px;border-radius:12px}.bubble{max-width:76%;padding:15px 17px 11px}.bubble p{font-size:14px;line-height:1.72}.error-toast{grid-column:2;grid-row:3;align-self:end;z-index:3;margin:0 30px 8px}.selected-images{grid-column:2;grid-row:4;align-self:start;z-index:4;margin-top:-42px;padding:0 42px}.composer{grid-column:2;grid-row:4;min-height:78px;margin:0 26px 22px;padding:12px;border-radius:25px}.send-button{width:auto;min-width:88px;display:flex;gap:7px;padding:0 18px}.send-button span{display:inline;font-size:12px;font-weight:730}.supplements-page{grid-column:2/4;grid-row:2/5;padding:24px 28px 36px}.supplements-hero{padding:27px 30px}.supplements-hero h2{font-size:40px}.supplement-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.supplement-card{min-height:150px;padding:19px}}@media (min-width:1280px){.app-shell{grid-template-columns:232px minmax(620px,1fr) 350px}.messages{padding-left:48px;padding-right:48px}.composer{margin-left:44px;margin-right:44px}}@media (prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;transition:none!important}}