:root{--paper:#f5f3ed;--white:#fffefa;--ink:#24382f;--muted:#6c776d;--green:#214d3b;--light:#e8eee2;--line:#dcded2;--amber:#b87638;--radius:18px;color-scheme:light;scroll-padding-top:90px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:var(--green);text-underline-offset:4px}button,a,summary{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button:disabled{cursor:wait}button,a,summary{touch-action:manipulation}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #b77839;outline-offset:4px}button{min-height:44px}.wrap{width:min(100% - 64px,850px);margin-inline:auto}.skip{position:fixed;left:10px;top:-100px;z-index:10;background:white;padding:10px}.skip:focus{top:10px}.masthead{display:flex;align-items:center;justify-content:space-between;padding:28px 0 30px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:700;line-height:1.3;font-size:17px}.brand-mark{display:grid;place-items:center;background:var(--green);color:var(--white);width:42px;height:42px;border-radius:12px;font-family:Georgia,serif;font-size:23px;font-weight:400}.brand-small{display:block;font-size:11px;font-weight:400;letter-spacing:2px;color:var(--muted);margin-top:4px}.archive-link{font-size:13px;text-decoration:none;color:var(--muted);padding:10px 0}.archive-link span{margin-left:9px}.hero{padding:20px 0 0}.issue{font-size:11px;letter-spacing:2px;display:flex;align-items:center;gap:9px;font-weight:700;color:var(--green)}.issue-dot{width:6px;height:6px;border-radius:50%;background:var(--green)}.issue-date{margin-left:auto;color:var(--muted);letter-spacing:1px;font-weight:400}h1{font-family:Georgia,"Songti SC","SimSun",serif;font-size:clamp(33px,5vw,53px);letter-spacing:-1.5px;line-height:1.35;max-width:700px;font-weight:600;margin:23px 0 15px;text-wrap:balance}.hero-sub{font-size:15px;color:var(--muted);margin:0 0 25px}.mobile-only{display:none}.time-plan{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;border-top:1px solid var(--line);padding:16px 0 22px;font-size:12px;color:var(--muted)}.time-plan b{font-size:20px;font-weight:400;color:var(--ink);margin-right:3px;font-variant-numeric:tabular-nums}.cover{margin:0;position:relative;overflow:hidden;border-radius:var(--radius);background:#e4ece8}.cover img{width:100%;height:auto;display:block;aspect-ratio:2.8;object-fit:cover}.cover figcaption{position:absolute;bottom:8px;right:11px;color:#394b3e;font-size:10px;background:#fffefaeb;border-radius:20px;padding:1px 8px}.section-nav{position:sticky;top:0;z-index:5;background:#f5f3edf5;backdrop-filter:blur(12px);border-bottom:1px solid var(--line);margin-top:30px}.nav-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.section-nav a{text-align:center;text-decoration:none;padding:17px 0 14px;border-bottom:3px solid transparent;font-size:14px;font-weight:600;color:var(--muted)}.section-nav a span{font-size:10px;letter-spacing:1px;margin-right:8px;color:inherit;opacity:.65}.section-nav a.active{color:var(--green);border-color:var(--green)}.lesson{padding:45px 0;border-bottom:1px solid var(--line);scroll-margin-top:10px}.section-heading{margin-bottom:25px}.eyebrow{font-size:10px;letter-spacing:2px;line-height:1.5;font-weight:700;color:var(--green);margin:0 0 9px}.section-heading h2{font-size:24px;letter-spacing:-.5px;line-height:1.45;font-weight:600;margin:0}h3{font-size:22px;line-height:1.5;font-weight:500;margin:24px 0 18px}.lesson p{margin:14px 0}.lesson strong{font-weight:650}p[lang=en],.english-line{font-family:Arial,Helvetica,sans-serif;font-size:18px;line-height:1.85;letter-spacing:.03px;text-wrap:pretty}.caption{font-size:12px!important;line-height:1.7!important;color:var(--muted);font-family:inherit!important}.english-line{border-left:2px solid #9bb19b;padding:3px 0 3px 18px;margin:22px 0;background:none}.english-line p{margin:0}.english-line strong{color:var(--green)}.audio-panel{background:var(--green);border-radius:var(--radius);padding:24px;color:var(--white);margin:22px 0 25px}.audio-panel figure{margin:0}.audio-panel figure+figure{margin-top:20px;padding-top:18px;border-top:1px solid #ffffff24}.audio-panel figcaption{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:10px;font-weight:600}.audio-panel figcaption span{font-size:11px;font-weight:400;color:#d6e3d3}.audio-panel audio{width:100%;height:46px;display:block}.audio-tools{display:flex;gap:8px;margin-top:12px}.audio-tools button{background:transparent;color:#f2f4e9;border:1px solid #ffffff52;border-radius:24px;padding:2px 14px;font-size:12px;min-height:38px}.audio-tools button[aria-pressed=true]{background:#e5ebd8;color:var(--green);border-color:#e5ebd8}.audio-status{font-size:11px!important;min-height:19px;line-height:1.5!important;color:#d6e3d3;margin:12px 0 0!important}.reading-body{margin:24px 0}.reading-body p{font-family:Georgia,"Times New Roman",serif;font-size:21px;line-height:1.85;margin:21px 0;letter-spacing:.05px}.term{display:inline;border:0;padding:0 3px;min-height:0;background:#e3ebd8;border-radius:3px;color:#214530;font:inherit;font-weight:600;line-height:inherit;text-align:left;box-decoration-break:clone;-webkit-box-decoration-break:clone;text-decoration:underline;text-decoration-color:#9cb28f;text-underline-offset:4px}.term:hover{background:#d5e3c5}.reading-tip{color:var(--muted);font-size:12px;margin:14px 0 22px;display:flex;align-items:center;gap:7px}.reading-tip i{width:10px;height:10px;border-radius:2px;background:#d5e3c5;display:inline-block}.all-words,.reference{border:1px solid var(--line);border-radius:12px;background:#fafaf4;padding:3px 18px;margin:24px 0}.all-words summary,.reference summary{font-size:14px;padding:11px 0;cursor:pointer;font-weight:600}.all-words table{margin:10px 0 16px;width:100%;font-size:13px;border-collapse:collapse;line-height:1.7}.all-words th,.all-words td{border-top:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}.all-words th:first-child,.all-words td:first-child{padding-left:0;width:42%;overflow-wrap:anywhere}.all-words th{font-weight:500;color:var(--muted)}.reference .english-line{font-size:16px;margin:10px 0 20px}.reference p:has(>strong:only-child){font-size:12px;color:var(--muted);margin-top:19px}.timer-card{background:#e9eee1;border-radius:var(--radius);padding:24px;margin:24px 0}.timer-top{display:flex;justify-content:space-between;align-items:center;gap:10px}.timer-value{font-size:39px;font-weight:400;letter-spacing:-2px;font-variant-numeric:tabular-nums;line-height:1}.timer-copy b{font-size:14px}.timer-copy p{color:var(--muted);font-size:12px;margin:3px 0 0}.timer-actions{display:flex;gap:8px;margin-top:20px}.primary-button,.quiet-button{border-radius:10px;padding:7px 18px;min-height:44px;font-size:13px}.primary-button{border:1px solid var(--green);color:var(--white);background:var(--green)}.quiet-button{border:1px solid #bccbb4;background:transparent;color:var(--green)}progress{appearance:none;-webkit-appearance:none;border:0;width:100%;height:3px;display:block;margin-top:20px;background:#cdd8c5;border-radius:3px;overflow:hidden}progress::-webkit-progress-bar{background:#cdd8c5}progress::-webkit-progress-value{background:var(--green)}progress::-moz-progress-bar{background:var(--green)}.vocab-card{padding:19px 22px;margin:12px 0;background:var(--white);border:1px solid #e2e4d9;border-radius:12px}.vocab-card>p{font-size:13px;color:var(--muted);margin:0 0 10px}.vocab-card>p strong{font-size:18px;color:var(--green);font-family:Georgia,"Times New Roman",serif}.vocab-card .english-line{font-size:16px;margin:8px 0 0;padding:0;border:0;color:var(--ink)}.history{padding:40px 0}.history .section-heading h2{font-size:20px}.history-list{border-top:1px solid var(--line)}.history-list a{display:flex;gap:20px;align-items:center;padding:17px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:14px}.history-list time{font-size:12px;font-variant-numeric:tabular-nums;color:var(--muted);white-space:nowrap}.footer{padding:20px 0 35px;font-size:11px;color:var(--muted);line-height:1.8}.footer-brand{font-family:Georgia,"Songti SC",serif;font-size:20px;letter-spacing:1px;color:var(--green);margin:0 0 20px}.footer p{margin:9px 0}.source-links{display:flex;gap:9px 18px;flex-wrap:wrap;margin:15px 0}.fine-print{font-size:10px!important;color:#7c8379}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}dialog{width:min(100% - 32px,460px);padding:26px;border:1px solid #e1e5d6;border-radius:20px;color:var(--ink);background:var(--white);box-shadow:0 24px 100px #1d332b33}dialog::backdrop{background:#132a2366;backdrop-filter:blur(3px)}.word-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.word-top p{margin:0}.close-button{font-size:26px;width:44px;background:none;border:0;color:var(--muted);line-height:1}.word-meaning{font-size:16px;line-height:1.8;margin:15px 0 25px}.word-top+.word-title,dialog h2{font-family:Georgia,serif;font-weight:500;font-size:30px;line-height:1.3;margin:0;overflow-wrap:anywhere}.example-label{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:20px}.word-example{font-size:17px;line-height:1.8}.example-meaning{font-size:13px;color:var(--muted);margin-bottom:4px}
@media(min-width:1050px){.hero{padding-top:28px}.lessons{width:min(100% - 64px,740px)}.lesson{padding-top:52px;padding-bottom:52px}.cover img{aspect-ratio:3.3}.section-heading h2{font-size:26px}}
@media(max-width:600px){:root{scroll-padding-top:77px}.wrap{width:calc(100% - 40px)}.masthead{padding:19px 0 20px}.brand{font-size:15px;gap:9px}.brand-mark{width:37px;height:37px;font-size:21px;border-radius:10px}.brand-small{font-size:10px;letter-spacing:1px}.archive-link{font-size:12px}.hero{padding-top:18px}.issue{font-size:9px;letter-spacing:1.7px;gap:6px}.issue-date{font-size:10px;letter-spacing:.5px}h1{font-size:35px;letter-spacing:-1px;line-height:1.4;margin:20px 0 14px;max-width:340px}.hero-sub{font-size:13px;line-height:1.8;margin-bottom:20px}.mobile-only{display:initial}.time-plan{font-size:9px;gap:3px;padding:13px 0 17px}.time-plan b{font-size:18px;display:block;line-height:1.5;margin:0}.cover{border-radius:13px}.cover img{aspect-ratio:2.6}.cover figcaption{font-size:9px;padding:0 7px;bottom:6px;right:7px}.section-nav{margin-top:22px}.nav-inner{gap:10px}.section-nav a{font-size:13px;padding:14px 0 11px}.section-nav a span{font-size:9px;margin-right:4px}.lesson{padding:32px 0}.section-heading{margin-bottom:20px}.section-heading h2{font-size:22px}.eyebrow{font-size:9px}.lesson p{font-size:14px}.english-line,.english-line p,p[lang=en]{font-size:17px;line-height:1.85}.english-line{padding-left:13px;margin:19px 0}.audio-panel{padding:18px;border-radius:14px}.audio-panel figcaption{font-size:12px}.audio-panel figcaption span{font-size:10px}.audio-tools{gap:7px}.audio-tools button{font-size:11px;padding:3px 12px}.reading-body p{font-size:20px;line-height:1.85;margin:22px 0}h3{font-size:21px;line-height:1.55}.all-words,.reference{padding-inline:14px}.all-words table{font-size:12px}.timer-card{padding:20px}.timer-value{font-size:37px}.vocab-card{padding:17px}.vocab-card .english-line p{font-size:16px}.vocab-card>p{font-size:12px}.history-list a{gap:13px;font-size:13px}.history-list time{font-size:10px}.footer{padding-top:15px}.footer p{font-size:10px}.footer-brand{font-size:19px!important}dialog{padding:20px;max-height:80dvh}.word-meaning{font-size:15px}.word-example{font-size:17px}dialog h2{font-size:28px}}
.title-phrase{display:inline-block}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}