@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap');
:root{--bg:#f7f8f5;--white:#fff;--ink:#243c38;--muted:#76817b;--green:#244b45;--line:#e3e8e1;--accent:#da795b;--light:#edf3ed}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px 'Noto Sans KR',sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}a{color:inherit;text-decoration:none}button{cursor:pointer;border:1px solid var(--line);background:white;color:var(--ink);border-radius:10px;padding:12px 18px;font-weight:600;transition:.15s}button:hover{border-color:var(--green);transform:translateY(-1px)}button:disabled{cursor:default;opacity:.45;transform:none}button.primary,.primary{background:var(--green);color:white;border-color:var(--green)}button.coral{background:var(--accent);color:white;border-color:var(--accent)}button.small{padding:7px 12px;font-size:13px}.sidebar{width:238px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--line);padding:34px 22px;display:flex;flex-direction:column;overflow:auto}.brand{display:flex;gap:12px;align-items:center;font-weight:800;font-size:25px;letter-spacing:-1px}.brand small{display:block;font-size:11px;font-weight:500;letter-spacing:2px;margin-top:1px;color:var(--muted)}.brand-icon{display:grid;place-items:center;background:var(--green);color:#fff;border-radius:13px;width:46px;height:46px;font:28px serif}.semester{font-size:11px;color:var(--muted);margin:32px 0 16px;letter-spacing:1px}.grade-label{font-size:11px;color:var(--muted);margin-bottom:7px}select,input,textarea{border:1px solid var(--line);border-radius:9px;padding:11px;background:#fff;color:var(--ink);max-width:100%}.sidebar select{font-size:13px;width:100%}nav{margin-top:24px}nav a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;font-size:18px;margin:3px 0;color:#6d7972}nav a span{font-size:14px}nav a.active{background:var(--light);color:var(--green);font-weight:700}nav b{font-size:11px;margin-left:auto}.nav-label{font-size:10px;letter-spacing:1px;color:#9aa39d;margin:25px 12px 9px}.sidebar-bottom{margin-top:auto;padding:30px 10px 0;font-size:12px;color:var(--muted)}.sidebar-bottom p{font-size:12px;line-height:1.9;padding-top:16px}.shell{margin-left:238px}header{height:80px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 46px;background:#ffffff90;font-size:12px;color:#77817b}.slash{margin:0 15px;color:#bec5bf}.pill{font-size:11px;border:1px solid var(--line);border-radius:20px;padding:6px 11px;background:#fff;color:var(--green)}main{max-width:1210px;margin:auto;padding:38px 46px 20px}h1{font-size:30px;letter-spacing:-1.2px;margin:9px 0 12px}h2{font-size:19px;letter-spacing:-.5px;margin:0 0 18px}h3{font-size:17px;margin:12px 0}p{line-height:1.85}small,.muted{color:var(--muted)}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--accent)}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.page-heading p{margin:0;color:var(--muted);font-size:13px}.hero{border:1px solid #dce4d9;border-radius:20px;background:#eef3e9;min-height:260px;padding:34px 36px;display:grid;grid-template-columns:1.5fr 1fr;position:relative;overflow:hidden}.hero h1{font-family:'Noto Sans SC',sans-serif;font-size:38px;letter-spacing:0;margin:12px 0 6px}.hero .ko{font-size:17px;margin:0 0 23px;color:#5b7165}.hero-meta{font-size:12px;display:flex;gap:14px;color:#6a7e6c;margin-bottom:25px}.hero-art{display:flex;align-items:center;justify-content:center;position:relative}.bubble{background:#fff;border:1px solid #d7e1d2;padding:24px 28px;border-radius:22px 22px 5px 22px;box-shadow:0 12px 30px #244b4509;transform:rotate(-6deg);font-family:'Noto Sans SC',sans-serif;font-size:24px;z-index:1}.bubble small{display:block;font-size:12px;margin-top:10px;letter-spacing:1px}.round{position:absolute;border:1px solid #d4dfcd;width:220px;height:220px;border-radius:50%}.round:after{content:'说';position:absolute;bottom:-15px;right:0;background:var(--accent);color:white;border:6px solid #eef3e9;border-radius:50%;width:64px;height:64px;display:grid;place-items:center;font:29px serif}.stats{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:14px;background:#fff;margin:22px 0 34px;padding:21px 8px}.stat{padding:0 25px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat strong{font-size:24px;margin-right:7px}.stat span{color:var(--muted);font-size:12px}.stat small{display:block;font-size:11px;margin-top:5px}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:17px}.section-head h2{margin:0}.section-head small{font-size:12px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:23px}.card p{font-size:13px;color:var(--muted);margin:8px 0 18px}.card .icon{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--light);color:var(--green);font-size:20px}.card:nth-child(2) .icon{background:#fbefe8;color:#ae7254}.card:nth-child(3) .icon{background:#edf0f8;color:#697ca0}.card a{font-size:12px;font-weight:700}.practice-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.practice-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;text-align:left}.practice-card .number{font-size:11px;color:var(--accent);letter-spacing:1px}.practice-card strong{display:block;margin:10px 0;font-size:15px}.practice-card small{font-size:11px;line-height:1.7;display:block}.section-space{margin-top:34px}.banner{margin-top:25px;display:flex;justify-content:space-between;align-items:center;gap:15px;border-radius:12px;background:#e9eeea;padding:20px 24px;font-size:13px}.banner p{margin:4px 0;color:var(--muted);font-size:12px}footer{padding:25px 46px 30px;color:#8e9790;font-size:10px;line-height:1.9;max-width:1210px;margin:auto}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.tabs{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}.tabs button{font-size:13px;padding:9px 16px}.tabs button.selected{background:var(--green);color:#fff;border-color:var(--green)}.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px;margin-bottom:20px}.zh{font-family:'Noto Sans SC','Microsoft YaHei',sans-serif;line-height:1.9}.wordcard{max-width:680px;margin:20px auto;text-align:center;padding:36px}.wordcard .word{font-size:54px;margin:20px 0 8px}.pinyin{color:var(--accent);font-size:20px;letter-spacing:1px}.meaning{font-size:23px;margin:24px 0}.wordcard .example{border-top:1px solid var(--line);margin-top:22px;padding-top:22px}.wordcard .example .zh{font-size:21px}.tag{font-size:11px;border-radius:5px;background:var(--light);padding:5px 9px;color:var(--green)}.progress{height:5px;background:#e6ece5;border-radius:8px;overflow:hidden;margin:14px 0}.progress i{height:100%;background:var(--accent);display:block;transition:width .3s}.dialog-line{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:start;padding:20px 0;border-bottom:1px solid var(--line)}.dialog-line:last-child{border:0}.dialog-line .speaker{font-size:12px;padding-top:8px;color:var(--muted)}.dialog-line .zh{font-size:22px}.dialog-line .translation{font-size:13px;color:var(--muted);margin-top:7px}.grammar-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.grammar-grid .zh{font-size:22px}.grammar-grid .panel p{font-size:14px}.question-zone{text-align:center;padding:35px 10px 25px}.sound-orb{width:90px;height:90px;border-radius:50%;background:#edf3ed;margin:0 auto 20px;display:grid;place-items:center;font-size:34px;color:var(--green)}.question-zone h2{font-size:23px}.question-zone p{color:var(--muted);font-size:13px}.prompt-ko{text-align:left;line-height:2.1;background:#f7f8f5;border-radius:12px;padding:23px;font-size:17px;max-width:760px;margin:20px auto}.record-box{border-top:1px solid var(--line);padding-top:24px;max-width:760px;margin:auto;text-align:center}.recording{background:#b9423d!important;color:#fff!important}.record-status{font-size:12px;color:var(--muted);min-height:25px;margin:12px 0}audio{display:block;max-width:100%;width:100%;margin:12px auto}.answer{background:#f1f5ee;border-radius:12px;margin-top:23px;padding:23px;text-align:left}.answer .zh{font-size:22px}.answer p{font-size:13px;color:#64715f}.timer{font-size:24px;font-variant-numeric:tabular-nums;letter-spacing:1px}.review-item{padding:19px 0;border-bottom:1px solid var(--line);display:flex;gap:14px;justify-content:space-between;align-items:center}.review-item:last-child{border:0}.review-item .zh{font-size:18px}.empty{text-align:center;padding:55px 20px;color:var(--muted)}.settings-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.field{display:flex;flex-direction:column;gap:8px;font-size:13px;margin-bottom:18px}textarea{width:100%;min-height:100px;resize:vertical;line-height:1.8}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:var(--green);color:#fff;border-radius:10px;padding:14px 22px;display:none;z-index:10;font-size:13px;box-shadow:0 5px 25px #0002}.notice{border-left:3px solid var(--accent);padding:12px 17px;background:#fcf4ec;font-size:12px;color:#8b674e;line-height:1.8;margin-bottom:20px}label.check{font-size:13px;display:flex;gap:8px;align-items:center}.hidden{display:none!important}.link-button{border:0;background:transparent;padding:5px;font-size:12px;color:var(--green)}
@media(min-width:1500px){main{padding-top:50px}.hero{min-height:285px}}@media(max-width:1100px){.sidebar{width:205px;padding:25px 16px}.shell{margin-left:205px}main{padding:28px}.practice-grid{grid-template-columns:1fr 1fr}header{padding:0 28px}.hero h1{font-size:30px}.hero-art .bubble{font-size:20px;padding:20px}.cards{gap:10px}.card{padding:18px}}@media(max-width:760px){.sidebar{position:static;width:auto;display:block;padding:16px;border-bottom:1px solid var(--line)}.brand{font-size:20px}.brand-icon{width:36px;height:36px;font-size:23px}.brand small{display:inline;font-size:10px;margin-left:9px}.semester,.grade-label,.sidebar-bottom,.nav-label{display:none}.sidebar select{position:absolute;right:15px;top:16px;width:165px;font-size:11px;padding:9px}nav{display:flex;overflow:auto;margin-top:15px;gap:6px}nav a{white-space:nowrap;padding:9px 12px;font-size:13px}nav a span{font-size:12px}nav b{display:none}.shell{margin:0}header{height:52px;padding:0 18px;font-size:10px}.pill{font-size:9px}main{padding:25px 18px}.hero{padding:25px;grid-template-columns:1fr}.hero h1{font-size:30px}.hero-art{display:none}.hero-meta{gap:10px;font-size:11px}.stats{padding:16px 0;margin:16px 0 28px}.stat{padding:0 13px}.stat strong{font-size:20px}.stat span{font-size:10px}.stat small{font-size:9px}.cards{grid-template-columns:1fr}.card{display:block;padding:20px}.card .icon{float:left;margin-right:15px}.card p{margin-left:55px}.card a{display:block;text-align:right}.card h3{margin-top:0}.practice-card{padding:16px}.practice-card strong{font-size:14px}.banner{align-items:start;flex-direction:column}.page-heading{align-items:start;gap:12px}h1{font-size:25px}.panel{padding:20px}.wordcard{padding:25px 16px}.grammar-grid,.settings-grid{grid-template-columns:1fr}.dialog-line{grid-template-columns:42px 1fr auto;gap:8px}.dialog-line .zh{font-size:19px}.dialog-line button{padding:8px}.review-item{align-items:start;flex-direction:column}footer{padding:20px}.wordcard .word{font-size:45px}.question-zone{padding:20px 0}.timer{font-size:20px}}
@media(max-width:760px){.sidebar-bottom{display:block;padding:12px 10px 0;margin:0}.sidebar-bottom p{display:none}}
.lesson-label{margin-top:14px}.lesson-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}.lesson-choice{text-align:left;padding:20px}.lesson-choice.selected{background:#edf3ed;border-color:#244b45}.lesson-choice strong,.lesson-choice small{display:block;margin-top:9px}.lesson-choice small{font-size:11px}.sign-in{display:inline-block;padding:12px 18px;border-radius:9px}.academy-name{font-size:24px}.academy-name small{letter-spacing:1px;font-size:13px}.hero h1{font-size:31px}.offline{background:#fff0e7}@media(max-width:760px){.sidebar #lesson-select{position:static;width:100%;margin-top:14px}.lesson-cards{grid-template-columns:1fr}.lesson-choice{padding:14px}.lesson-choice small{margin-top:4px}.hero h1{font-size:27px}}

.reading-pair{margin:12px 0}.sentence-pinyin{font-family:Arial,sans-serif;font-size:16px;line-height:1.8;color:#536b65;margin-top:5px;overflow-wrap:anywhere;font-weight:400;letter-spacing:.015em}.question-reading{padding-bottom:12px;margin-bottom:16px;border-bottom:1px solid var(--line)}.dialog-line>div{min-width:0}@media(max-width:600px){.sentence-pinyin{font-size:15px}}