.rm{--paper:var(--ink-paper);--card:var(--ink-paper);--inkc:var(--ink);--mut:var(--ink);--hair:var(--ink);--leaf:var(--ink-leaf);--leaf-on-ink:var(--ink-leaf-on-ink);--seal:var(--ink-seal);--rule:var(--ink-rule-line);--frame:var(--ink-frame);--mount:var(--ink-elev-mount);--moss:var(--ink-moss);--rm-serif:var(--font-spectral), "Spectral", var(--font-noto-serif-sc), "Noto Serif SC", serif;--rm-ui:var(--font-spectral), "Spectral", "Noto Serif SC", serif;--rm-ui-han:var(--font-spectral), var(--font-noto-serif-sc), "Noto Serif SC", serif;--rm-han:var(--font-noto-serif-sc), "Noto Serif SC", serif;--rm-brush:var(--font-ma-shan-zheng), "Ma Shan Zheng", var(--font-noto-serif-sc), "Noto Serif SC", serif;--rm-page-w:1200px;--rm-axis-x:560px;--rm-page-pad:64px;--rm-col-l:440fr;--rm-col-r:536fr;--rm-col-gap:96px;--rm-hero-h:700px;--rm-axis-phone:44px;--rm-phone-pad-l:60px;--rm-phone-pad-r:20px;min-height:100dvh;max-width:var(--rm-page-w);background:var(--paper);color:var(--inkc);font:16px/1.5 var(--rm-serif);-webkit-font-smoothing:antialiased;text-spacing-trim:trim-all;margin:0 auto;position:relative}.rm *{box-sizing:border-box}.rm a{color:var(--moss);font-weight:500;text-decoration:none}.rm a:hover{color:var(--inkc)}.rm :is(a,button):focus-visible{outline:2px solid var(--leaf);outline-offset:2px}.rm button{font:inherit}.rm.rm-landing{padding-bottom:72px}.rm.rm-landing:before{content:"";left:var(--rm-axis-x);background:var(--inkc);width:1px;position:absolute;top:0;bottom:0}.rm .t-hanzi{font-family:var(--rm-han)}.rm .t-brush{font-family:var(--rm-brush)}.rm .t-kicker{letter-spacing:.01em;color:var(--leaf);font-size:13px;font-weight:500}.rm .btn-primary{background:var(--leaf);width:100%;color:var(--paper);border-radius:var(--ink-r-cut);text-align:center;min-height:44px;font:500 15px/1.2 var(--rm-ui-han);letter-spacing:0;cursor:pointer;border:0;padding:15px 22px;text-decoration:none;display:block}.rm .btn-primary:hover{background:var(--inkc);color:var(--paper)}.rm .btn-primary small{opacity:.85;margin-top:3px;font-size:13.5px;font-weight:400;display:block}.rm .btn-outline{width:100%;color:var(--inkc);border:var(--frame);border-radius:var(--ink-r-cut);text-align:center;min-height:44px;font:500 15px/1.2 var(--rm-ui-han);letter-spacing:0;cursor:pointer;background:0 0;padding:14px 22px;text-decoration:none;display:block}.rm .btn-outline:hover{color:var(--leaf);border-color:var(--leaf)}.rm .btn-next{background:var(--leaf);width:100%;color:var(--paper);border-radius:var(--ink-r-cut);min-height:44px;font:500 15px/1 var(--rm-ui);cursor:pointer;border:0;padding:15px 20px;display:block}.rm .btn-next:hover{background:var(--inkc)}.rm .rm-door{padding:12px 22px;line-height:1.3}.rm .rm-door.btn-outline{padding:11px 22px}.rm .rm-door .l1{font-size:15px;font-weight:500;display:block}.rm .rm-door .l2{margin-top:2px;font-size:13px;font-weight:400;display:block}.rm .btn-primary.rm-door .l2{opacity:.85}.rm .rm-quiet{font-family:var(--rm-ui);color:var(--moss);cursor:pointer;background:0 0;border:0;padding:0;font-size:14px;font-weight:500;text-decoration:none}.rm .rm-quiet:hover{color:var(--inkc)}.rm .rm-plain{font-family:var(--rm-ui);color:var(--inkc);letter-spacing:0;cursor:pointer;background:0 0;border:0;align-items:center;min-height:44px;padding:8px 0;font-size:15px;text-decoration:none;display:inline-flex}.rm .rm-plain:hover{color:var(--leaf)}.rm .rm-hear{border:var(--frame);border-radius:var(--ink-r-cut);color:var(--inkc);min-height:44px;font:500 15px/1 var(--rm-ui);cursor:pointer;background:0 0;align-items:center;gap:10px;margin-top:18px;padding:0 18px;display:inline-flex}.rm .rm-hear .mark{font-size:12px}.rm .rm-hear:hover{color:var(--leaf);border-color:var(--leaf)}.rm .rm-header{padding:28px var(--rm-page-pad) 0;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.rm .rm-header-brand{color:var(--inkc);align-items:baseline;gap:12px;margin-top:12px;font-weight:400;text-decoration:none;display:flex}.rm .rm-header-brand:hover{color:var(--inkc)}.rm .rm-mark{font-family:var(--rm-han);font-size:20px;line-height:1}.rm .rm-wordmark{font-family:var(--rm-ui);letter-spacing:.01em;font-size:14px;font-weight:500}.rm .rm-header-doors{flex-direction:column;align-items:flex-end;gap:8px;display:flex}.rm .rm-header-row{align-items:center;gap:26px;display:flex}.rm .rm-header-login{font-family:var(--rm-ui);color:var(--inkc);padding:6px 0;font-size:14px;font-weight:400;text-decoration:none}.rm .rm-header-login:hover{color:var(--leaf)}.rm .rm-header-club{background:var(--leaf);min-height:44px;color:var(--paper);font-weight:500;font-family:var(--rm-ui);border-radius:var(--ink-r-cut);align-items:center;padding:0 20px;font-size:14px;font-weight:500;text-decoration:none;display:inline-flex}.rm .rm-header-club:hover{background:var(--inkc);color:var(--paper)}.rm .rm-header-spots{font-variant-numeric:tabular-nums;font-size:12.5px}.rm .rm-hero{height:var(--rm-hero-h);position:relative}.rm .rm-hero-text{left:var(--rm-page-pad);width:440px;position:absolute;top:60px}.rm .rm-hero-text.has-card{top:40px;bottom:30px;overflow-y:auto}.rm .rm-h1{letter-spacing:-.015em;text-wrap:pretty;margin:0;font-size:40px;font-weight:300;line-height:1.15}.rm .rm-subline{text-wrap:pretty;max-width:40ch;margin:18px 0 0;font-size:17px;line-height:1.55}.rm .rm-doors{flex-direction:column;gap:10px;max-width:380px;margin-top:30px;display:flex}.rm .rm-advanced{margin:16px 0 0;font-size:14px;line-height:1.5}.rm .rm-hero-mark{writing-mode:vertical-rl;font-family:var(--rm-han);letter-spacing:.34em;font-size:15px;position:absolute;top:60px;right:22px}.rm .rm-hero-mark.lo-gloss,.rm .rm-hero-glyph.lo-gloss{border-bottom:0}.rm .rm-hero-mark .lo-gloss-card{inset:0 calc(100% + 10px) auto auto;transform:none}.rm .rm-hero-glyph .lo-gloss-card{font-family:var(--rm-ui)}.rm .rm-hero-tree{left:calc(var(--rm-axis-x) + 40px);line-height:0;position:absolute;top:40px;right:40px}.rm .rm-hero-caption{left:calc(var(--rm-axis-x) + 40px);grid-template-columns:auto 1fr;align-items:center;column-gap:20px;display:grid;position:absolute;bottom:30px;right:80px}.rm .rm-hero-glyph{font-family:var(--rm-brush);letter-spacing:-.04em;font-size:96px;line-height:.9}.rm .rm-hero-caption p{text-wrap:pretty;margin:0;font-size:14px;line-height:1.55}.rm .rm-club-row{display:none}.rm .rm-rows{padding:0 var(--rm-page-pad)}.rm .rm-reason-title{font-variant-numeric:tabular-nums;margin:0;font-size:24px;font-weight:300;line-height:1.25}.rm .rm-reason-body{text-wrap:pretty;max-width:44ch;margin:8px 0 0;font-size:16px;line-height:1.55}.rm .rm-reason-hero{margin-top:44px}.rm .rm-reasons{grid-template-columns:minmax(0, var(--rm-col-l)) minmax(0, var(--rm-col-r));column-gap:var(--rm-col-gap);margin-top:24px;display:grid}.rm .rm-demos{margin-top:64px}.rm .rm-row{grid-template-columns:minmax(0, var(--rm-col-l)) minmax(0, var(--rm-col-r));column-gap:var(--rm-col-gap);padding:26px 0 30px;display:grid}.rm .rm-row-title{font-variant-numeric:tabular-nums;margin:0;font-size:24px;font-weight:300;line-height:1.25}.rm .rm-row-body{text-wrap:pretty;max-width:54ch;margin:0;font-size:16px;line-height:1.55}.rm .rm-demo{grid-template-rows:auto 1fr;grid-template-areas:"title demo""body demo";align-items:start;padding:36px 0 40px}.rm .rm-demo .rm-row-title{grid-area:title}.rm .rm-demo .rm-demo-right{grid-area:demo;min-width:0}.rm .rm-demo .rm-row-body{grid-area:body;max-width:36ch;margin-top:12px}.rm .rm-ladder{grid-template-columns:repeat(5,auto);justify-content:start;align-items:center;gap:12px 22px;display:grid}.rm .rm-ladder .glyph{font-family:var(--rm-han);font-size:96px;line-height:1}.rm .rm-ladder .arrow{font-family:var(--rm-serif);font-size:30px;font-weight:300;line-height:1}.rm .rm-label{text-align:center;font-family:var(--rm-ui);font-size:13px;line-height:1.35}.rm .rm-label .py{color:var(--leaf);font-weight:500;display:block}.rm .rm-poem{grid-template-columns:repeat(5,84px);justify-content:start;gap:12px 14px;display:grid}.rm .rm-poem-zi{font-family:var(--rm-han);text-align:center;font-size:84px;line-height:1;display:block;position:relative}.rm .rm-poem-zi .base{display:block}.rm .rm-poem-zi.moon{color:var(--leaf)}.rm .rm-moon{color:var(--leaf);position:absolute;inset:0}.rm .rm-poem-caption{margin:20px 0 0;font-size:14px;line-height:1.55}.rm .rm-tones{width:100%}.rm .rm-staff{width:100%;height:auto;display:block;overflow:visible}.rm .rm-staff-narrow{display:none}.rm .rm-footer{padding:0 var(--rm-page-pad);margin-top:56px}.rm .rm-footer-row{grid-template-columns:minmax(0, var(--rm-col-l)) minmax(0, var(--rm-col-r));column-gap:var(--rm-col-gap);align-items:start;padding-top:24px;display:grid}.rm .rm-footer-door{min-width:0}.rm .rm-footer-root{flex-wrap:wrap;align-items:center;gap:28px;display:flex}.rm .rm-footer-glyph{font-family:var(--rm-brush);letter-spacing:-.04em;font-size:96px;line-height:.9;display:block}.rm .rm-root-door{font:300 31px/1.15 var(--rm-serif);color:var(--moss);cursor:pointer;background:0 0;border:0;padding:0;text-decoration:none;display:inline-block}.rm .rm-root-door:hover{color:var(--inkc)}.rm .rm-footlinks{font-family:var(--rm-ui);flex-wrap:wrap;gap:8px 26px;margin-top:30px;font-size:13px;display:flex}.rm .rm-footlinks a{color:var(--moss);font-weight:500;text-decoration:none}.rm .rm-footlinks a:hover{color:var(--inkc)}.rm .rm-card{background:var(--paper);width:100%;max-width:440px;box-shadow:inset 0 0 0 1px var(--inkc);border-radius:var(--ink-r-cut);text-align:left;flex-direction:column;min-height:600px;margin:0;padding:20px 22px 24px;display:flex}.rm .rm-card-top{justify-content:space-between;align-items:center;gap:12px;display:flex}.rm .rm-dots{align-items:center;gap:5px;display:flex}.rm .rm-dots .rm-dot{appearance:none;border:1px solid var(--inkc);cursor:pointer;border-radius:var(--ink-r-cut);background:0 0;width:9px;height:9px;padding:0}.rm .rm-dots .rm-dot:disabled{cursor:default}.rm .rm-dot.done{background:var(--inkc)}.rm .rm-dot.current{background:var(--leaf);border-color:var(--leaf)}.rm .rm-card-body{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:24px 0 12px;display:flex}.rm .rm-card-glyph{font-family:var(--rm-brush);letter-spacing:-.04em;font-size:210px;line-height:.9}.rm .rm-card-pinyin{font-family:var(--rm-ui);letter-spacing:.01em;color:var(--leaf);margin-top:22px;font-size:15px;font-weight:500}.rm .rm-card-gloss{margin-top:6px;font-size:24px;font-weight:300;line-height:1.2}.rm .rm-card-note{text-wrap:pretty;max-width:30ch;margin-top:14px;font-size:14.5px;line-height:1.55}.rm .rm-sound-row{font-family:var(--rm-ui);justify-content:center;align-items:center;gap:10px;margin-top:22px;font-size:15px;display:flex}.rm .rm-card-sentence{font-family:var(--rm-han);letter-spacing:.04em;margin-top:16px;font-size:76px;font-weight:500;line-height:1.1}.rm .rm-card-learned{justify-content:center;align-items:flex-end;gap:18px;margin-top:22px;display:flex}.rm .rm-card-learned>span{flex-direction:column;align-items:center;gap:6px;display:inline-flex}.rm .rm-card-learned .zi{font-family:var(--rm-han);font-size:34px;line-height:1}.rm .rm-card-learned .py{font-family:var(--rm-ui);letter-spacing:.01em;font-size:12px}.rm .rm-card-thesis{max-width:40ch;font-family:var(--rm-serif);text-wrap:pretty;margin:22px auto 0;font-size:14.5px;line-height:1.7}.rm .rm-card-ending{flex-direction:column;align-items:stretch;gap:10px;width:100%;margin-top:22px;display:flex}.rm .rm-card-trial{text-align:center;font-family:var(--rm-ui);letter-spacing:.04em;margin:0;font-size:12px;line-height:1.6}.rm .rm-card-next{align-items:center;gap:16px;display:flex}.rm .rm-card-next .btn-next{flex:1}.rm .rm-back{flex:none}.rm .rm-card .rm-tones{flex-direction:column;align-items:center;display:flex}.rm .rm-bonus-tag{font-family:var(--rm-ui);letter-spacing:.08em;border-bottom:1px solid;padding:3px 0;font-size:11px}.rm-reveal{--g:var(--ink);--k:var(--ink-paper);--k2:var(--ink-leaf-on-ink);--mark:var(--ink-paper);--onmark:var(--ink);background:var(--g);color:var(--k)}.rm-reveal[data-rm-theme=light]{--g:var(--ink-paper);--k:var(--ink);--k2:var(--ink-leaf);--mark:var(--ink);--onmark:var(--ink-paper)}.rm .rm-pane{border-top:1px solid var(--k);flex-direction:column;justify-content:center;align-items:center;min-height:min(100dvh,720px);padding:40px 24px 84px;display:flex;position:relative}.rm .rm-pane:first-of-type{border-top:0;padding-top:72px}.rm .rm-pane-mark{color:var(--k);font-family:var(--rm-han);font-size:20px;line-height:1;position:absolute;top:22px;left:20px}.rm .rm-pane-title{font-family:var(--rm-ui);letter-spacing:.01em;color:var(--k);text-align:center;margin:0 0 28px;font-size:13px;font-weight:500}.rm .rm-glyph-button{color:inherit;font-family:var(--rm-brush);cursor:pointer;background:0 0;border:0;padding:0;line-height:1}.rm .rm-pane-gloss{font-family:var(--rm-ui);color:var(--k2);margin-top:18px;font-size:17px}.rm .rm-equation{color:var(--k);grid-template-columns:auto auto auto;place-items:center;gap:8px 16px;display:grid}.rm .rm-equation .op{font-family:var(--rm-serif);font-size:32px;font-weight:300;line-height:1}.rm .rm-equation .lab{font-family:var(--rm-ui);letter-spacing:.02em;color:var(--k2);font-size:13px}.rm .rm-cue{cursor:pointer;color:var(--k2);background:0 0;border:0;min-height:44px;padding:6px 14px;position:absolute;bottom:18px;left:50%;transform:translate(-50%)}.rm .rm-cue:hover{color:var(--k)}.rm .rm-cue span{font-size:30px;line-height:1;display:block}.rm .rm-pane .rm-bonus-tag{color:var(--k2);position:absolute;top:22px;right:20px}.rm .rm-payoff{background:var(--ink-paper);color:var(--ink);padding:56px 24px 60px}.rm .rm-payoff-in{text-align:center;max-width:520px;margin:0 auto}.rm .rm-payoff h1{letter-spacing:-.01em;text-wrap:pretty;margin:32px 0 0;font-size:clamp(26px,4vw,31px);font-weight:300;line-height:1.15}.rm .rm-payoff-footer{text-align:left;width:100%;margin-top:48px}.rm .rm-payoff-footer .rm-footer-row{grid-template-columns:1fr}.rm .rm-payoff-footer .rm-footer-blank{display:none}.rm .rm-info{max-width:680px;margin:0;padding:40px 64px 80px}.rm .rm-info-block{margin-top:30px}.rm .rm-info-block+.rm-info-block{border-top:var(--rule);padding-top:18px}.rm .rm-info-block h2{font-family:var(--rm-serif);margin:0 0 8px;font-size:22px;font-weight:300}.rm .rm-info-block p{font-family:var(--rm-serif);margin:0 0 12px;font-size:16px;line-height:1.6}.rm .rm-info-card{box-shadow:var(--mount);border-radius:var(--ink-r-cut);margin-top:18px;padding:18px 20px}@media (max-width:760px){.rm.rm-landing{padding-bottom:48px}.rm.rm-landing:before{left:var(--rm-axis-phone)}.rm .rm-header{padding:22px var(--rm-phone-pad-r) 0 var(--rm-phone-pad-l);align-items:baseline}.rm .rm-header-brand{gap:10px;margin-top:0}.rm .rm-mark{font-size:17px}.rm .rm-wordmark{font-size:13px}.rm .rm-header-login{font-size:15px}.rm .rm-header-club,.rm .rm-header-spots{display:none}.rm .rm-hero{flex-direction:column;height:auto;display:flex}.rm .rm-hero-text{width:auto;padding:10px var(--rm-phone-pad-r) 0 var(--rm-phone-pad-l);position:static}.rm .rm-hero-text.has-card{overflow:visible}.rm .rm-hero-tree{margin:4px 0 0 var(--rm-axis-phone);order:-1;position:static}.rm .rm-hero-caption{display:none}.rm .rm-hero-mark{font-size:14px;top:24px;left:14px;right:auto}.rm .rm-h1{font-size:30px}.rm .rm-subline{max-width:none;margin-top:12px;font-size:15.5px;line-height:1.5}.rm .rm-doors{max-width:none;margin-top:24px}.rm .rm-door{padding:12px 18px}.rm .rm-door.btn-outline{padding:11px 18px}.rm .rm-advanced{margin-top:14px;line-height:1.6}.rm .rm-advanced .rm-quiet{padding:4px 0;display:inline-block}.rm .rm-club-row{margin:32px var(--rm-phone-pad-r) 0 var(--rm-phone-pad-l);display:block}.rm .rm-club-link{font-family:var(--rm-ui);color:var(--moss);padding:6px 0;font-size:15px;font-weight:500;text-decoration:none;display:inline-block}.rm .rm-club-spots{font-variant-numeric:tabular-nums;font-size:13px}.rm .rm-rows{padding:0 var(--rm-phone-pad-r) 0 var(--rm-phone-pad-l)}.rm .rm-reasons{margin-top:8px;display:block}.rm .rm-reason{margin-top:32px}.rm .rm-reason-hero{margin-top:36px}.rm .rm-reason-title{font-size:21px}.rm .rm-reason-body{max-width:none;font-size:15px}.rm .rm-demos{margin-top:40px}.rm .rm-row{padding:20px 0 22px;display:block}.rm .rm-row-title{font-size:21px}.rm .rm-row-body{max-width:none;margin-top:8px;font-size:15px}.rm .rm-demo{padding:24px 0 28px}.rm .rm-demo .rm-demo-right{margin-top:20px}.rm .rm-demo .rm-row-body{max-width:none;margin-top:16px}.rm .rm-ladder{gap:10px 14px}.rm .rm-ladder .glyph{font-size:62px}.rm .rm-ladder .arrow{font-size:22px}.rm .rm-label{font-size:11.5px}.rm .rm-poem{grid-template-columns:repeat(5,54px);gap:10px 8px}.rm .rm-poem-zi{font-size:54px}.rm .rm-poem-caption{margin-top:16px;font-size:13.5px}.rm .rm-staff-wide{display:none}.rm .rm-staff-narrow{display:block}.rm .rm-hear{margin-top:16px}.rm .rm-footer{padding:0 var(--rm-phone-pad-r) 0 var(--rm-phone-pad-l);margin-top:40px}.rm .rm-footer-row{padding-top:30px;display:block}.rm .rm-footer-blank{display:none}.rm .rm-footer-root{gap:18px}.rm .rm-footer-glyph{font-size:80px}.rm .rm-root-door{font-size:26px}.rm .rm-footlinks{margin-top:28px}.rm .rm-hero-mark .lo-gloss-card{left:calc(100% + 10px);right:auto}.rm .rm-info{padding:32px 20px 60px 60px}.rm .rm-card{max-width:none}.rm .rm-card-glyph{font-size:168px}.rm .rm-card-sentence{font-size:64px}}