@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components;@layer utilities{.relative{position:relative}.start{inset-inline-start:var(--spacing)}.table{display:table}}:root{--paper:#f7f3e9;--paper-deep:#eee7d8;--surface:#fffdf8;--ink:#18352f;--ink-deep:#102823;--muted:#6f7770;--line:#ded8cb;--accent:#d87732;--accent-soft:#fae5d1;--sage:#dce8dc;--sage-deep:#376858;--white:#fff;--shadow-sm:0 2px 8px #23332b0f;--shadow-md:0 12px 32px #23332b17}*{box-sizing:border-box}html{overscroll-behavior:contain;background:#ddd8cf}body{color:var(--ink-deep);background:#ddd8cf;margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,PingFang SC,Microsoft YaHei,sans-serif}button{font:inherit;touch-action:manipulation}button:focus-visible{outline-offset:3px;outline:3px solid #2575d8}.app-shell{background:var(--paper);width:min(100%,760px);min-height:100dvh;padding-bottom:calc(82px + env(safe-area-inset-bottom));margin:auto;overflow:hidden}.topbar{z-index:20;padding:calc(12px + env(safe-area-inset-top)) 20px 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46px}.page.narrow{max-width:620px;margin:auto}.plan-hero{background:var(--ink);color:#fff;border-radius:28px;padding:30px 25px 22px;position:relative;overflow:hidden;box-shadow:0 18px 40px #1028232b}.plan-hero:before,.plan-hero:after{content:"";border:1px solid #ffffff1c;border-radius:50%;position:absolute}.plan-hero:before{width:190px;height:190px;top:-75px;right:-70px}.plan-hero:after{width:115px;height:115px;top:-25px;right:-20px}.hero-copy{z-index:1;max-width:410px;position:relative}.hero-kicker,.section-kicker{letter-spacing:.14em;text-transform:uppercase;font-size:11px;font-weight:800;line-height:1.4;display:block}.hero-kicker{color:#c5ddcd}.hero-copy h1{letter-spacing:.01em;margin:14px 0 12px;font-family:STSong,Songti SC,serif;font-size:clamp(32px,8vw,52px);line-height:1.15}.hero-copy p{color:#d7e2dc;max-width:340px;margin:0;font-size:14px;line-height:1.7}.progress-orbit{z-index:2;background:conic-gradient(var(--accent) 0 2%,#ffffff1f 2% 100%);border-radius:50%;place-items:center;width:90px;height:90px;display:grid;position:absolute;top:52px;right:23px;box-shadow:inset 0 0 0 1px #ffffff1a}.progress-orbit:after{content:"";background:var(--ink);border-radius:50%;width:70px;height:70px;position:absolute}.progress-orbit div{z-index:1;align-items:baseline;display:flex}.progress-orbit strong{font-family:Georgia,serif;font-size:29px}.progress-orbit span{color:#c5d1cb;margin-left:2px;font-size:10px}.hero-stats{z-index:1;border-top:1px solid #ffffff1f;align-items:center;gap:18px;margin-top:26px;padding-top:18px;display:flex;position:relative}.hero-stats div{align-items:baseline;gap:6px;display:flex}.hero-stats strong{font-family:Georgia,serif;font-size:20px}.hero-stats span{color:#c5d1cb;font-size:11px}.hero-stats i{background:#ffffff26;width:1px;height:18px}.section-heading{justify-content:space-between;align-items:flex-end;gap:12px;margin:30px 2px 13px;display:flex}.section-heading h2{letter-spacing:.02em;margin:5px 0 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p{color:var(--muted);margin:0;font-size:13px}.group-tabs{grid-template-columns:repeat(3,1fr);gap:8px;margin:23px 0 13px;display:grid}.group-tabs button{border:1px solid var(--line);background:var(--surface);min-height:88px;color:var(--ink);cursor:pointer;border-radius:16px;padding:10px 4px}.group-tabs span,.group-tabs b,.group-tabs small{display:block}.group-tabs span{color:#7b807b;background:#e8e5dd;border-radius:50%;place-items:center;width:24px;height:24px;margin:0 auto 6px;font-size:11px;font-weight:800;display:grid}.group-tabs b{font-size:12px}.group-tabs small{color:var(--muted);margin-top:5px;font-size:9px}.group-tabs .selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:#fff6eb}.group-tabs .selected span{background:var(--accent);color:#fff}.group-tabs button:disabled{opacity:.48;cursor:not-allowed}.recorder-card{border:1px solid var(--line);background:var(--surface);text-align:center;box-shadow:var(--shadow-sm);border-radius:25px;flex-direction:column;align-items:center;padding:24px 18px 22px;display:flex}.recorder-label{background:var(--sage);color:var(--sage-deep);border-radius:999px;padding:6px 10px;font-size:10px;font-weight:800}.recorder-card h2{max-width:390px;margin:17px 0 6px;font-family:STSong,Songti SC,serif;font-size:20px;line-height:1.5}.recorder-card>p{color:var(--muted);margin:0;font-size:11px}.record-rings{background:#d8773217;border-radius:50%;place-items:center;width:126px;height:126px;margin:19px 0 5px;display:grid;box-shadow:0 0 0 12px #d877320b}.record-button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:50%;place-items:center;width:88px;height:88px;display:grid;box-shadow:0 10px 24px #d8773247}.record-button i{background:#fff;border-radius:5px;width:23px;height:23px}.record-rings.is-recording{animation:1.4s infinite pulse}.record-rings.is-recording .record-button{background:#af3d36}.record-status{font-size:13px}.playback{align-items:center;gap:8px;width:100%;margin-top:17px;display:flex}.playback audio{width:100%;min-width:0;height:42px}.playback button{border:1px solid var(--line);min-height:44px;color:var(--ink);white-space:nowrap;cursor:pointer;background:#fff;border-radius:12px;padding:0 10px;font-size:11px}.prototype-note{line-height:1.55;text-align:center!important;color:var(--muted)!important;margin:12px 14px 0!important;font-size:10px!important}.bottom-nav{z-index:30;width:min(100%,760px);padding:7px 13px calc(7px + env(safe-area-inset-bottom));-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffdf8f2;border-top:1px solid #ded8cbe6;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:50%;transform:translate(-50%)}.bottom-nav button{color:#848982;cursor:pointer;background:0 0;border:0;border-radius:13px;flex-direction:column;justify-content:center;align-items:center;gap:3px;min-height:52px;font-size:10px;font-weight:700;transition:background .18s,color .18s;display:flex}.bottom-nav button.active{background:var(--sage);color:var(--ink)}.bottom-nav svg{width:20px;height:20px}@keyframes pulse{50%{opacity:.5}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important}}@media (max-width:520px){.page{padding:22px 15px 38px}.topbar{padding-left:15px;padding-right:15px}.plan-hero{padding:25px 20px 20px}.hero-copy{max-width:245px}.hero-copy h1{font-size:33px}.hero-copy p{font-size:12px}.progress-orbit{width:78px;height:78px;top:44px;right:16px}.progress-orbit:after{width:60px;height:60px}.progress-orbit strong{font-size:25px}.hero-stats{gap:12px}.hero-stats span{font-size:10px}.today-card{grid-template-columns:48px 1fr 32px;padding:15px 13px}.today-icon{width:48px;height:54px}.today-copy 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p{max-width:280px;font-size:13px;line-height:1.72}.progress-orbit{width:84px;height:84px;top:48px;right:20px}.progress-orbit:after{width:64px;height:64px}.progress-orbit strong{font-size:27px}.hero-stats{gap:15px;margin-top:28px;padding-top:19px}.hero-stats strong{font-size:22px}.hero-stats span{font-size:11px}.section-heading{margin-top:32px;margin-bottom:15px}.section-heading h2{font-size:23px}.today-card{border-radius:22px;grid-template-columns:52px 1fr 36px;gap:14px;padding:17px 15px}.today-icon{width:52px;height:58px}.today-copy strong{font-size:18px}.today-copy em{font-size:12px}.calendar{gap:16px}.week{border-radius:23px;padding:17px 14px}.day-cell{min-height:64px}.weekday-row,.day-grid{gap:5px}.day-cell span{font-size:11px}.day-cell small{font-size:10px}.lesson-hero{border-radius:27px;min-height:252px;padding:28px 23px}.lesson-hero h1{font-size:35px}.lesson-hero>p{font-size:15px}.teacher-tip{border-radius:19px;padding:17px}.step-list{gap:11px}.step{border-radius:19px;min-height:76px;padding:12px 14px}.step-copy strong{font-size:15px}.step-copy small{font-size:12px}.recite-heading h1{font-size:35px}.recite-heading p{font-size:14px}.group-tabs{gap:9px;margin-top:26px}.group-tabs button{border-radius:18px;min-height:94px}.group-tabs b{font-size:13px}.group-tabs small{font-size:10px}.recorder-card{border-radius:27px;min-height:430px;padding:27px 20px 24px}.recorder-card h2{font-size:22px}.recorder-card>p{font-size:12px}.record-rings{width:138px;height:138px;margin-top:22px}.record-button{width:94px;height:94px}.primary{border-radius:18px;min-height:60px}.bottom-nav{padding:8px 14px calc(8px + env(safe-area-inset-bottom))}.bottom-nav button{min-height:56px;font-size:11px}.bottom-nav svg{width:22px;height:22px}}@media (min-width:700px){.plan-page{padding-left:30px;padding-right:30px}.calendar{grid-template-columns:1fr 1fr}.plan-hero{padding:38px 35px}.progress-orbit{width:108px;height:108px;right:40px}.progress-orbit:after{width:84px;height:84px}}