:root{font-family:Inter,'Microsoft YaHei',sans-serif;color:#262921;background:#f7f8f2;--lime:#d4ff45;--purple:#ead8fb;--blue:#bdeafb}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}button{background:white;border:1px solid #dfe2d6;border-radius:12px;padding:12px 17px;cursor:pointer;color:#262921}button:hover{filter:brightness(.96)}button:disabled{opacity:.4;cursor:not-allowed}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,textarea:focus-visible{outline:3px solid #658ac2;outline-offset:3px}header{max-width:1280px;margin:auto;display:flex;align-items:center;gap:26px;padding:25px 35px;border-bottom:1px solid #e5e7dc}.brand{font-weight:800;font-size:19px;white-space:nowrap}.brand b{background:var(--lime);padding:5px 10px;border-radius:9px}.brand small{font-size:10px;font-weight:400;margin-left:8px}nav{display:flex;gap:5px;margin:auto}nav a{font-size:12px;padding:10px 14px;border-radius:22px}nav a.active{background:#282c23;color:white}header>small{font-size:10px;color:#78836b}main{max-width:1110px;margin:42px auto;padding:0 24px;min-height:70vh}h1{font-size:38px;letter-spacing:-1.5px;margin:8px 0 12px}h2{font-size:23px;margin:0 0 13px;line-height:1.45}h3{font-size:16px;margin:0 0 12px}p{color:#747b69;line-height:1.8;margin:8px 0}.eyebrow{font-size:11px;letter-spacing:2px;color:#788269;font-weight:800}.muted,small{font-size:12px;color:#7b8270}.card{background:white;border:1px solid #e4e7db;border-radius:23px;padding:27px}.calendar{background:var(--lime);margin:25px 0;border:0}.calendar-head{display:flex;justify-content:space-between;font-size:12px;font-weight:700}.days{display:flex;justify-content:space-between;margin-top:22px;gap:8px}.day{text-align:center;font-size:11px}.day b{display:grid;place-items:center;width:36px;height:36px;background:#ffffffa0;border-radius:50%;margin:0 auto 8px}.day.today b{outline:1px solid #282c23;outline-offset:3px}.day.done b{background:#282c23;color:white}.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.purple{background:var(--purple)}.blue{background:var(--blue)}.entry{position:relative;min-height:183px;display:block;padding:28px;transition:.2s}.entry:hover{transform:translateY(-3px)}.entry .symbol{font-size:24px;margin-bottom:28px}.arrow{position:absolute;bottom:25px;right:25px;background:#282c23;color:white;width:32px;height:32px;border-radius:50%;display:grid;place-items:center}.bottom-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:18px;margin-top:18px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{padding:18px;border-radius:15px;min-height:110px}.stat b{display:block;font-size:32px;margin:14px 0 3px}.stat small{font-size:11px;color:inherit}.dark{background:#282c23;color:white}.dark p{color:#bfc7b5}.primary{background:var(--lime);border-color:transparent;font-weight:700}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:18px}.practice{display:grid;grid-template-columns:265px 1fr;gap:22px;align-items:start}.sidebar{position:sticky;top:22px}.sidebar p{font-size:13px}.numbers{display:flex;gap:7px;margin:25px 0}.numbers button{width:36px;height:36px;padding:0;border:0;border-radius:50%;font-size:12px}.numbers .selected{background:#282c23;color:white}.numbers .done:not(.selected){box-shadow:inset 0 0 0 2px #798e49}.pages{display:flex;justify-content:space-between;align-items:center;font-size:11px}.pages button{padding:6px 10px}.steps{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:25px}.steps span{font-size:11px;background:#f1f3eb;color:#808875;padding:8px 11px;border-radius:18px}.steps .on{background:var(--lime);color:#282c23}.badge{font-size:11px;background:#f0f3e8;border-radius:7px;padding:6px 9px}.question{font-size:28px;line-height:1.4;margin:15px 0;letter-spacing:-.5px}.section{border-top:1px solid #e8ebdf;margin-top:24px;padding-top:24px}.formula{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}.formula span{font-size:12px;padding:15px 10px;background:var(--lime);border-radius:12px}.formula b{display:block;font-size:10px;opacity:.5;margin-bottom:7px}.example{background:#f3ecfa;border-radius:16px;padding:22px;margin-top:18px}.english{font-size:16px;color:#33392e;line-height:1.85}.translation{border-top:1px solid #dfd0e8;margin-top:15px;padding-top:15px;font-size:14px}.tabs{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.tabs button{font-size:12px;padding:7px 11px}.tabs .selected{background:#282c23;color:white}.rating{display:flex;flex-wrap:wrap;gap:9px}.rating button{flex:1;min-width:115px}textarea{width:100%;min-height:130px;resize:vertical;border:1px solid #dce2d0;border-radius:12px;padding:14px;line-height:1.7;background:white;margin-top:12px}details{margin-top:20px}summary{font-size:13px;cursor:pointer;color:#69745c}.take{background:#f3f5ec;border-radius:14px;padding:16px;overflow-wrap:anywhere}.take p{white-space:pre-wrap;font-size:14px}.take a{font-size:11px;text-decoration:underline}audio{width:100%;height:40px;margin:12px 0}.random-wrap{max-width:810px;margin:auto}.blind{text-align:center;padding:60px 30px}.big{font-size:60px;margin-bottom:20px}.random-count{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;font-size:12px}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metrics .stat{min-height:160px}.metrics b{font-size:42px}.history{margin-top:23px}.history-row{display:flex;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid #e9ecdf}.grow{flex:1}.history-row strong{font-size:14px}.history-row button{font-size:12px;padding:8px 12px}.empty{text-align:center;padding:25px;color:#818a73}.notice{background:#eef2e4;padding:15px 19px;border-radius:12px;margin-top:20px;font-size:12px;line-height:1.8}.result{background:#e5efd3;padding:16px;border-radius:12px}footer{max-width:1110px;margin:40px auto 0;padding:25px 24px 95px;display:flex;justify-content:space-between;font-size:11px;color:#89947c}footer button{border:0;background:none;font-size:11px;padding:0;color:inherit}dialog{border:0;border-radius:24px;width:calc(100% - 40px);max-width:510px;padding:32px;text-align:center;box-shadow:0 20px 90px #0002}dialog::backdrop{background:#20251e88;backdrop-filter:blur(4px)}dialog p{font-size:13px;margin-bottom:22px}#info{text-align:left}.count{display:grid;place-items:center;width:100px;height:100px;background:var(--lime);border-radius:50%;font-size:44px;margin:0 auto 25px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#242a22;color:white;border-radius:12px;padding:12px 22px;font-size:13px;z-index:30;max-width:90%;pointer-events:none}#toast:empty{display:none}#recordbar{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);background:#242a22;color:white;border-radius:18px;padding:15px 24px;z-index:20;gap:20px;align-items:center;box-shadow:0 10px 35px #0003}#recordbar:not([hidden]){display:flex}#recordbar button{background:#f0b4b4;border:0}@media(max-width:850px){header{padding:18px 22px;flex-wrap:wrap;gap:15px}.brand small,header>small{display:none}nav{margin:0 0 0 auto;gap:0}nav a{padding:8px 10px}.practice{grid-template-columns:210px 1fr}.formula{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:1fr 1fr}.bottom-grid{grid-template-columns:1fr}.compare{grid-template-columns:1fr}}@media(max-width:600px){header{justify-content:center}.brand{width:100%;text-align:center}nav{margin:auto}main{margin-top:28px}h1{font-size:30px}.two,.practice{grid-template-columns:1fr}.sidebar{position:static}.card{padding:21px;border-radius:19px}.sidebar .numbers{margin:15px 0}.entry{min-height:155px}.entry .symbol{margin-bottom:15px}.question{font-size:24px}.stat{padding:13px}.stats{gap:7px}.stat small{font-size:10px}.day b{width:31px;height:31px}.days{gap:5px}.metrics .stat{min-height:130px}.history-row{flex-wrap:wrap}.blind{padding:45px 22px}#recordbar{width:calc(100% - 30px);justify-content:space-between;gap:8px;padding:12px 16px}}

.module-label{display:block;font-size:12px;margin:20px 0 8px;color:#505a42}#moduleSelect{width:100%;max-width:100%;padding:11px 9px;background:#ffffffb8;color:#262921;border:1px solid #c7b9d8;border-radius:10px;font:inherit;font-size:12px}.study-notes{background:#f5f6ef;border-radius:14px;padding:16px}.study-notes h3{font-size:13px;margin:20px 0 5px}.study-notes p{font-size:13px}.sample-note{margin-top:14px}.update-notice{margin:0 0 23px;display:flex;align-items:center;gap:14px;justify-content:space-between}.update-notice button{white-space:nowrap;font-size:12px;padding:8px 12px}.archived-draft{white-space:pre-wrap;overflow-wrap:anywhere}.history>summary{font-weight:700}.module-label+select:focus-visible{outline:3px solid #658ac2;outline-offset:3px}@media(max-width:600px){.update-notice{align-items:flex-start;flex-direction:column}.study-notes{padding:13px}}