@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700;900&family=Nunito:wght@600;700;800;900&display=swap");
:root{--ink:#2f281f;--soft:#625648;--muted:#756858;--paper:#f7f1e7;--surface:#fffdf8;--line:#e8dcc9;--teal:#287f96;--teal-soft:#dff1f4;--orange:#e96d3f;--orange-soft:#fbe4d7;--navy:#203f47;--green:#4f9166;--shadow:0 18px 50px rgba(71,52,30,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;overflow-x:hidden;background:var(--paper);color:var(--ink);font:16px/1.75 "Noto Sans TC","Microsoft JhengHei",sans-serif}button,audio{font:inherit}a{color:inherit}.skip-link{position:fixed;top:8px;left:8px;z-index:100;transform:translateY(-160%);padding:8px 13px;border-radius:10px;background:var(--navy);color:#fff;text-decoration:none;font-weight:800}.skip-link:focus{transform:translateY(0)}.shell{width:min(calc(100% - 36px),1040px);margin:auto}
.topbar{position:sticky;top:0;z-index:20;background:#f7f1e7ed;backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.topbar .shell{min-height:68px;display:flex;align-items:center;gap:14px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:900}.brand-mark{width:40px;height:40px;border-radius:14px;display:grid;place-items:center;background:var(--teal);color:#fff;transform:rotate(-5deg)}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em}.topnav{margin-left:auto;display:flex;gap:8px}.topnav a{padding:8px 13px;border-radius:999px;text-decoration:none;font-size:14px;font-weight:700}.topnav a:hover{background:var(--teal-soft);color:var(--teal)}
.hero{padding:56px 0 28px}.crumb{display:flex;gap:7px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:20px}.crumb a{color:var(--muted)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:32px;align-items:end}.lesson-tag{display:inline-flex;padding:6px 12px;border-radius:999px;background:var(--teal-soft);color:var(--teal);font-size:13px;font-weight:900}.hero h1{font:900 clamp(42px,8vw,72px)/1.02 Nunito,sans-serif;letter-spacing:-.035em;margin:14px 0 12px}.meaning{font-size:21px;font-weight:900;margin:0 0 12px}.intro{color:var(--soft);max-width:42em;margin:0}.rhythm-card,.card,.example,.dialogue,.production,.transcript,.contrast{background:var(--surface);border:1px solid var(--line);border-radius:24px}.rhythm-card{padding:24px;box-shadow:var(--shadow)}.rhythm-card b{display:block;color:var(--orange);font:900 13px Nunito;letter-spacing:.08em}.rhythm{font:900 27px Nunito;margin:7px 0}.rhythm strong{color:var(--orange)}
.player{margin:20px 0 34px;padding:25px 28px;border-radius:28px;background:var(--navy);color:#fff;box-shadow:0 18px 50px rgba(27,63,72,.2)}.player-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:16px}.player h2{margin:0;font-size:22px}.player p{margin:2px 0 0;color:#d9e8eb;font-size:14px}.speed{display:flex;gap:8px}.speed button{border:1px solid #ffffff59;background:transparent;color:#fff;border-radius:999px;padding:7px 12px;cursor:pointer;font-weight:900}.speed button.active{background:#fff;color:var(--navy)}audio{display:block;width:100%}.now-playing{min-height:1.5em;margin-top:10px!important;color:#c5e9ef!important}
.audio-versions{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px}.audio-version{border:1px solid #ffffff70;background:transparent;color:#fff;border-radius:999px;padding:8px 13px;cursor:pointer;font-weight:800}.audio-version.active{border-color:#8fd5e2;background:#dff1f4;color:var(--navy)}
.section{padding:14px 0 30px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}.section h2{font-size:27px;margin:0}.section-head p{margin:0;color:var(--muted);font-size:14px}.practice-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.step{padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:20px}.step span{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--orange-soft);color:var(--orange);font-weight:900}.step h3{margin:12px 0 5px;font-size:17px}.step p{margin:0;color:var(--soft);font-size:14px}.yesterday{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border-radius:18px;background:var(--teal-soft);color:var(--navy)}.yesterday span{font-size:13px;font-weight:900}.yesterday strong{font:900 18px Nunito}.yesterday a{text-decoration:none;font-weight:900;color:var(--teal)}
.card{padding:26px}.usage-grid{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center}.usage-grid h3{font:900 31px Nunito;margin:0 0 5px}.usage-grid p{margin:0;color:var(--soft)}.play{border:0;border-radius:999px;background:var(--teal);color:#fff;padding:12px 18px;font-weight:900;cursor:pointer}.play:focus-visible,.speed button:focus-visible,summary:focus-visible{outline:3px solid #f5b948;outline-offset:3px}
a:focus-visible{outline:3px solid #f5b948;outline-offset:3px}
.form-list{display:grid;gap:10px}.form-row{padding:14px 16px;border-radius:15px;background:#fff7ea;border:1px solid #f0dfc1}.form-row strong{display:block;font:800 18px Nunito}.form-row span{color:var(--soft);font-size:14px}.pitfall{margin-top:14px;padding:16px 18px;border-left:5px solid var(--orange);border-radius:14px;background:var(--orange-soft)}.pitfall strong{display:block}.pitfall p{margin:3px 0 0;color:var(--soft)}
.dialogue{padding:22px;display:grid;gap:12px}.turn{display:grid;grid-template-columns:34px 1fr;gap:12px}.speaker{width:32px;height:32px;border-radius:11px;display:grid;place-items:center;background:var(--teal-soft);color:var(--teal);font-weight:900}.turn p{margin:0}.turn .zh{color:var(--soft);font-size:14px}.examples{display:grid;gap:14px}.example{padding:22px;display:grid;grid-template-columns:44px 1fr auto;gap:15px;align-items:start}.num{width:40px;height:40px;border-radius:14px;display:grid;place-items:center;background:var(--orange-soft);color:var(--orange);font:900 19px Nunito}.example h3{font:800 20px/1.45 Nunito;margin:0}.example p{margin:4px 0;color:var(--soft)}.note{border-left:3px solid var(--teal);padding-left:10px;color:var(--muted);font-size:13px;margin-top:8px}
.production{padding:22px}.production-list{display:grid;gap:12px}.production details{padding:14px 16px;border-radius:15px;border:1px solid var(--line);background:#fff}.production summary{cursor:pointer;font-weight:800}.answer{margin:10px 0 0;padding-top:10px;border-top:1px dashed var(--line);font:800 17px Nunito;color:var(--teal)}
.contrast{padding:22px;overflow-x:auto}.contrast table{width:100%;min-width:660px;border-collapse:collapse}.contrast th,.contrast td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line)}.contrast th{color:var(--muted);font-size:13px}.contrast tr.current{background:var(--teal-soft)}.contrast a{font:800 16px Nunito;text-decoration:none;color:var(--teal)}
.transcript{padding:18px 20px}.transcript summary{cursor:pointer;font-weight:900}.transcript ol{margin-bottom:0}.transcript li+li{margin-top:8px}.transcript .zh{color:var(--soft)}.downloads{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.downloads a{padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);text-decoration:none;font-size:14px;font-weight:800}
.takeaway{text-align:center;padding:35px 20px 54px}.takeaway strong{display:block;color:var(--teal);font:900 clamp(28px,6vw,46px)/1.2 Nunito}.takeaway p{color:var(--soft)}.backlinks{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}.backlinks a{padding:9px 15px;border:1px solid var(--line);border-radius:999px;background:var(--surface);text-decoration:none;font-weight:800}footer{padding:30px 0;border-top:1px solid var(--line);background:var(--surface);color:var(--muted);text-align:center;font-size:13px}
.review-hero h1{max-width:10em;font-family:"Noto Sans TC","Microsoft JhengHei",sans-serif;font-size:clamp(38px,7vw,64px);letter-spacing:-.02em}.review-focus .rhythm{font-family:"Noto Sans TC","Microsoft JhengHei",sans-serif;font-size:23px}.review-lessons{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.review-lessons a{display:flex;min-width:0;flex-direction:column;padding:15px;border:1px solid var(--line);border-radius:17px;background:var(--surface);text-decoration:none}.review-lessons span{color:var(--teal);font-size:11px;font-weight:900;letter-spacing:.05em}.review-lessons strong{font:800 16px/1.35 Nunito;overflow-wrap:anywhere}.review-lessons em{margin-top:4px;color:var(--soft);font-size:12px;font-style:normal}.review-story{display:grid;gap:12px;margin:0;padding:22px;list-style:none;border:1px solid var(--line);border-radius:24px;background:var(--surface)}.review-story li{display:grid;grid-template-columns:34px 1fr;gap:12px}.review-story li>span{width:32px;height:32px;display:grid;place-items:center;border-radius:11px;background:var(--orange-soft);color:var(--orange);font-weight:900}.review-story p{margin:0}.review-story strong{font:800 18px/1.5 Nunito}.review-story .zh{color:var(--soft);font-size:14px}.chunk-highlight{padding:0 .16em;border-bottom:2px solid var(--chunk-line);border-radius:.25em;background:var(--chunk-bg);color:inherit;-webkit-box-decoration-break:clone;box-decoration-break:clone}.chunk-1{--chunk-bg:#fff0ad;--chunk-line:#d29b00}.chunk-2{--chunk-bg:#dcecff;--chunk-line:#4c86c6}.chunk-3{--chunk-bg:#ffdfe5;--chunk-line:#cf6075}.chunk-4{--chunk-bg:#d8f1eb;--chunk-line:#3c9682}.chunk-5{--chunk-bg:#eadfff;--chunk-line:#8064bd}.review-note{margin:7px 0 0;color:var(--soft);font-size:13px}
@media(max-width:760px){.shell{width:min(calc(100% - 24px),1040px)}.topbar .shell{flex-wrap:wrap;padding:10px 0}.topnav{order:2;width:100%;margin-left:0;overflow-x:auto}.topnav a{flex:0 0 auto}.hero{padding-top:38px}.hero-grid{grid-template-columns:1fr}.player-head,.section-head{align-items:flex-start;flex-direction:column}.practice-steps{grid-template-columns:1fr}.usage-grid{grid-template-columns:1fr}.usage-grid .play{justify-self:start}.example{grid-template-columns:40px 1fr}.example .play{grid-column:2;justify-self:start}.yesterday{align-items:flex-start;flex-direction:column}.section h2{font-size:24px}}
@media(max-width:760px){.review-lessons{grid-template-columns:1fr 1fr}.review-story{padding:16px}.review-story strong{font-size:16px}}