:root{--paper:#f8f6ef;--ink:#203d35;--green:#1d4e42;--muted:#6e7b72;--line:#dfe2d7;--light:#edf0e6;--sand:#cc975e;--white:#fffef9}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;font-size:16px;line-height:1.75}a{color:inherit;text-decoration:none}a:hover{color:#a46b35}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #bd8b51;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.35}h1{font-size:clamp(34px,4.5vw,60px);font-weight:650;letter-spacing:-.035em}h2{font-size:28px;font-weight:600;letter-spacing:-.02em}h3{font-size:21px;font-weight:600}small{font-size:12px;color:var(--muted)}.masthead{max-width:1280px;margin:auto;padding:27px 40px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:24px}.brand{display:flex;gap:13px;align-items:center;font-size:19px;font-weight:600;letter-spacing:.04em}.brand-icon{display:grid;place-items:center;width:46px;height:46px;border:1px solid var(--green);border-radius:50%;font:20px Georgia,serif}.brand small{display:block;font-size:8px;letter-spacing:.2em}.masthead nav{display:flex;gap:32px;align-items:center;font-size:14px}.quiet-link{color:var(--muted)}main{min-height:70vh;max-width:1280px;margin:auto}.hero{display:grid;grid-template-columns:1.08fr 1fr;gap:55px;align-items:center;padding:72px 40px 58px}.eyebrow{font-size:12px;letter-spacing:.16em;color:#8b6d45;margin-bottom:20px}.hero h1{margin-bottom:25px}.lede{font-size:18px;color:var(--muted);line-height:1.9}.actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}.button{display:inline-flex;justify-content:center;align-items:center;gap:20px;padding:13px 23px;background:var(--green);color:#fffdf5;border:1px solid var(--green);border-radius:5px;font-size:14px;font-weight:550;white-space:nowrap}.button:hover{background:#2b6252;color:white}.button.secondary{background:transparent;color:var(--green);border-color:#bbc9bd}.button.small{padding:8px 15px;font-size:13px}.text-link{color:var(--green);font-size:14px;text-decoration:underline;text-underline-offset:5px}.hero-note{margin-top:30px;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:12px}.dot{width:6px;height:6px;background:#799e7b;border-radius:50%}.atlas{border:1px solid #c5cfc0;background:#e9f0e9;transform:rotate(1deg);box-shadow:10px 14px 0 #e8e7dd}.atlas-top{padding:15px 20px;border-bottom:1px solid #ccd5c9;font-size:10px;letter-spacing:.15em;display:flex;justify-content:space-between}.atlas svg{display:block;width:100%;height:auto}.atlas-caption{border-top:1px solid #ccd5c9;padding:18px 20px;font-size:14px}.atlas-caption small{display:block;margin-top:4px}.principles{display:grid;grid-template-columns:repeat(3,1fr);margin:0 40px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:25px 0}.principles>div{display:flex;gap:22px;padding-left:24px;align-items:center;border-left:1px solid var(--line)}.principles>div:first-child{padding-left:0;border:0}.principles b{font:24px Georgia,serif;color:#a38963}.principles small{display:block;font-size:12px;margin-top:3px}.section{padding:65px 40px}.section.tight{padding-top:20px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:28px}.section-head .eyebrow{margin-bottom:12px}.section-head h2{margin-bottom:0}.section-head>p{font-size:14px;color:var(--muted);margin:0}.semester-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.semester-card{border:1px solid var(--line);padding:24px 25px 20px;background:#fffef966;transition:background .18s,transform .18s}.semester-card:hover{color:var(--ink);background:var(--white);transform:translateY(-3px)}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;color:var(--muted);font-size:12px}.card-top b{font:29px Georgia,serif;color:#b8bbab}.semester-card h3{font-size:22px;margin-bottom:13px}.semester-card p{font-size:14px;color:var(--muted);min-height:51px}.card-bottom{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:16px;font-size:11px}.card-bottom span:first-child{color:var(--muted)}.fineprint{font-size:12px;color:var(--muted);margin-top:22px}.sample-feature{margin:5px 40px;background:var(--light);display:grid;grid-template-columns:1.1fr 1fr;align-items:center}.sample-image{position:relative;display:block;height:340px;overflow:hidden}.sample-image img{width:100%;height:100%;object-fit:cover;object-position:top}.play-badge{position:absolute;bottom:22px;left:24px;padding:9px 16px;background:var(--white);border-radius:3px;font-size:13px}.sample-copy{padding:35px 42px}.sample-copy p{font-size:15px}.sample-copy h2{font-size:34px}.sample-copy .sample-meta{font-size:12px;color:var(--muted)}.sample-copy small{display:block;margin-top:15px}.sample-copy .eyebrow{font-size:12px}.approach{display:grid;grid-template-columns:1fr 1fr;gap:50px;border-bottom:1px solid var(--line)}.approach>p{color:var(--muted);font-size:15px}.page-intro{padding:55px 40px 20px}.page-intro.compact h1{font-size:38px}.back{display:inline-block;color:var(--muted);font-size:13px;margin-bottom:25px}.page-intro .eyebrow{margin-bottom:12px}.unit{margin-bottom:36px}.unit>h2{font-size:24px;margin-bottom:15px;border-bottom:1px solid var(--ink);padding-bottom:12px}.lesson-row{display:flex;justify-content:space-between;gap:24px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.lesson-row h3{font-size:17px;margin:5px 0 0}.tag{font-size:11px;color:var(--muted)}.status{display:inline-block;background:#e9ede3;color:#5b705e;padding:4px 10px;border-radius:3px;font-size:12px;white-space:nowrap}.notice{padding:13px 18px;background:#f0e9d7;border-left:3px solid #bd955c;font-size:14px;color:#6d5737}.notice.success{background:#e3eddf;color:var(--green);border-color:#779b6c}.lesson-layout{padding:10px 40px 50px;display:grid;grid-template-columns:minmax(0,2fr) minmax(250px,1fr);gap:25px}.player-box{background:#e7e9e0;border:1px solid var(--line)}video{width:100%;display:block;max-height:680px;background:#172e28}.beats{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 25px}.beats button{padding:8px 14px;border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:3px;font-size:13px}.panel{padding:25px;background:var(--white);border:1px solid var(--line);margin-bottom:20px}.panel h2{font-size:22px}.panel h3{font-size:17px}.panel p{font-size:14px}.panel li{font-size:14px;margin-bottom:12px}.panel ol,.panel ul{padding-left:22px}.panel a:not(.button){text-decoration:underline;text-underline-offset:4px}.transcript{white-space:pre-wrap;font-size:17px;line-height:2}.choice{display:block;width:100%;text-align:left;padding:14px 18px;background:#f8f8f0;border:1px solid var(--line);margin:10px 0;color:var(--ink);border-radius:4px;font-size:15px}.choice.correct{border-color:#6b8e60;background:#e4efdd}.choice.incorrect{border-color:#b79d78;background:#faf0de}details>summary{cursor:pointer;font-size:16px;font-weight:550}details[open]>summary{margin-bottom:18px}.subnav{display:flex;gap:30px;margin-top:28px;border-bottom:1px solid var(--line);padding-bottom:15px;font-size:14px}.subnav .active{font-weight:bold}.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--white)}.stats>div{padding:22px 25px;border-left:1px solid var(--line)}.stats>div:first-child{border:0}.stats strong{font:34px Georgia,serif;display:block}.stats span{font-size:12px;color:var(--muted)}.semester-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0 20px}.semester-tabs a{padding:8px 16px;border:1px solid var(--line);font-size:13px}.semester-tabs .selected{background:var(--green);color:white}.toolbar{display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:12px}.toolbar label{font-size:14px}.table-scroll{overflow-x:auto;margin-bottom:24px;border:1px solid var(--line)}table{border-collapse:collapse;width:100%;min-width:660px;background:var(--white);font-size:14px}th{text-align:left;background:var(--light);font-size:12px;font-weight:550;color:var(--muted)}td,th{padding:13px 18px;border-bottom:1px solid var(--line);vertical-align:top}td small{display:block;margin-top:4px}td strong{font-weight:500}.coverage-link{display:block;font-size:13px;text-decoration:underline;max-width:360px}.muted{color:var(--muted)}.job-row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.empty{padding:30px;text-align:center;color:var(--muted);font-size:14px}.editor-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(270px,1fr);gap:24px}.editor-form label{display:block;font-size:14px;margin:18px 0}.editor-form input:not([type=checkbox]),textarea,select,.inline-form input{display:block;width:100%;border:1px solid #cfd7cb;border-radius:4px;padding:10px 13px;margin-top:8px;background:#fff;color:var(--ink);min-width:0}textarea{resize:vertical;line-height:1.7}.field-row{display:flex;gap:16px}.field-row>label{flex:1}.code{font:13px/1.7 Consolas,monospace}.hint{font-size:12px!important;color:var(--muted);overflow-wrap:anywhere}.standard-picker{max-height:400px;overflow:auto;border:1px solid var(--line);padding:10px}.editor-form .checkline{display:flex;align-items:flex-start;gap:8px;font-size:13px;margin:12px 0}.checkline input{margin-top:6px}.sticky-save{position:sticky;bottom:0;background:var(--white);border-top:1px solid var(--line);padding-top:15px;display:flex;gap:20px;align-items:center;justify-content:space-between}.sticky-save span{font-size:12px;color:var(--muted)}.review-record{border-bottom:1px solid var(--line);padding:15px 0}.review-record b{font-size:13px}.inline-form{display:flex;align-items:end;gap:18px}.inline-form label{flex:1}.text-button{background:none;border:0;color:#8b5f43;text-decoration:underline;margin-top:16px;font-size:13px}pre{overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.7 Consolas,monospace;background:#f1f1e9;padding:20px}hr{border:0;border-top:1px solid var(--line);margin:22px 0}footer{max-width:1280px;margin:auto;padding:40px;display:flex;justify-content:space-between;gap:30px;color:var(--muted);font-size:12px}footer strong{color:var(--ink)}footer p{margin:6px 0}footer>div:last-child{text-align:right}.skip{position:absolute;left:-9999px}.skip:focus{left:20px;top:10px;background:white;padding:10px;z-index:10}input[type=checkbox]{width:17px;height:17px;accent-color:var(--green)}
@media(max-width:1000px){.hero{gap:30px}.hero h1{font-size:44px}.semester-card{padding:20px}.semester-card h3{font-size:20px}.sample-copy{padding:28px}.editor-grid{grid-template-columns:minmax(0,1.6fr) minmax(260px,1fr)}}
@media(max-width:740px){.masthead{padding:19px 22px;flex-wrap:wrap;gap:16px}.masthead nav{gap:20px;font-size:12px;justify-content:space-between;width:100%}.brand{font-size:17px}.brand-icon{width:38px;height:38px;font-size:17px}.hero{display:flex;flex-direction:column;padding:42px 22px;gap:35px;align-items:stretch}.hero h1{font-size:clamp(34px,9.4vw,44px)}.lede{font-size:16px}.hero .actions{gap:18px}.atlas{max-width:520px;margin:0 9px 0 0}.principles{margin:0 22px;gap:14px;padding:19px 0}.principles>div{padding:0;border:0;display:block}.principles b{font-size:19px;display:block;margin-bottom:5px}.principles span{font-size:13px}.principles small{font-size:10px}.section{padding:42px 22px}.section-head{display:block}.section-head>p{margin-top:16px}.section-head h2{font-size:26px}.semester-grid{grid-template-columns:1fr 1fr;gap:12px}.semester-card{padding:17px}.card-top{margin-bottom:18px}.card-top b{font-size:24px}.semester-card h3{font-size:18px}.semester-card p{font-size:12px;min-height:64px}.card-bottom{font-size:10px;flex-direction:column;gap:6px}.sample-feature{margin:0 22px;grid-template-columns:1fr}.sample-image{height:250px}.sample-copy{padding:27px}.sample-copy h2{font-size:28px}.approach{grid-template-columns:1fr;gap:10px}.page-intro{padding:35px 22px 15px}.page-intro.compact h1{font-size:30px}.lesson-layout{padding:10px 22px 35px;grid-template-columns:1fr}.lesson-aside{display:flex;flex-direction:column}.panel{padding:20px}.stats{grid-template-columns:1fr 1fr}.stats>div{padding:15px 18px;border-bottom:1px solid var(--line)}.stats strong{font-size:29px}.stats span{font-size:11px}.editor-grid{grid-template-columns:1fr}.subnav{gap:18px;font-size:12px}.semester-tabs{gap:6px}.semester-tabs a{padding:8px;font-size:12px}.toolbar{gap:10px}.inline-form{display:block}.inline-form button{margin-top:15px}.sticky-save{gap:12px}.sticky-save span{max-width:50%}.field-row{gap:12px}footer{padding:30px 22px;display:block}footer>div:last-child{text-align:left;margin-top:20px}.lesson-row{align-items:start;gap:14px}.lesson-row h3{font-size:15px}.beats button{font-size:12px;padding:7px 10px}.job-row{align-items:start}.job-row>a{max-width:70%;font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}