@charset "UTF-8";
:root{--ink:#203b33;--muted:#687c73;--green:#28644b;--deep:#174d37;--lime:#d6edaa;--line:#dfe7dd;--paper:#fffef9;--bg:#f3f6ed;--soft:#e9efdf;--shadow:0 10px 40px #24452b07;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC",sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.6}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #9ebd5b;outline-offset:4px}[hidden]{display:none!important}.skip{opacity:0;pointer-events:none;position:fixed;top:-90px;left:10px;z-index:100;background:white;padding:14px}.skip:focus{opacity:1;pointer-events:auto;top:10px}.shell{max-width:1160px;margin:auto;padding:0 36px}.site-header{height:94px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:22px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:750;font-size:20px;letter-spacing:-.5px}.brand small{font-weight:450;color:var(--muted);font-size:13px;margin-left:4px}.mark{display:inline-flex;gap:4px;align-items:center;justify-content:center;width:33px;height:33px;background:var(--green);border-radius:11px}.mark i{width:3px;background:#e3f1c5;border-radius:3px;height:12px}.mark i:nth-child(2){height:21px}.mark i:nth-child(3){height:16px}.header-links{display:flex;gap:26px;font-size:13px;color:var(--muted)}.header-links a{text-decoration:none}.header-links a:hover{color:var(--green)}.hero{padding:48px 0 30px;display:flex;justify-content:space-between;gap:20px;align-items:center}.eyebrow{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1.8px;color:var(--green);font-weight:700;margin:0 0 13px}.eyebrow:before{content:'';width:7px;height:7px;border-radius:50%;background:#74a24d}h1{font-size:42px;letter-spacing:-1.4px;line-height:1.35;margin:0 0 14px;font-weight:650}h1 small{font-size:inherit;font-weight:inherit}.intro{color:var(--muted);font-size:14px;line-height:1.9;margin:0;white-space:pre-line}.hero-art{width:140px;height:130px;position:relative;margin:0 30px;transform:rotate(8deg)}.hero-art:before,.hero-art:after{content:'';position:absolute;border:1px solid #cad8bd;border-radius:50%;inset:6px 9px;transform:rotate(-25deg)}.hero-art:after{inset:24px -8px;transform:rotate(35deg)}.pendulum{height:88px;width:4px;background:var(--green);position:absolute;left:68px;top:19px;transform:rotate(28deg);border-radius:6px}.pendulum:before{content:'';width:17px;height:25px;background:var(--lime);border:2px solid var(--green);position:absolute;left:-6px;top:15px;border-radius:4px}.pendulum:after{content:'';position:absolute;width:30px;height:6px;background:var(--green);left:-13px;bottom:0;border-radius:3px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:22px;align-items:start}.instrument{background:var(--paper);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.mode-tabs{display:flex;gap:5px;margin:20px 24px 0;background:#f0f3ea;border:1px solid #e7ecdf;padding:5px;border-radius:13px}.mode-tabs button{border:0;background:transparent;flex:1;padding:11px 8px;text-align:center;font-size:14px;text-decoration:none;color:var(--muted);border-radius:9px;display:flex;align-items:center;justify-content:center;gap:8px}.mode-tabs button[aria-pressed=true]{background:var(--paper);box-shadow:0 2px 6px #233b3310;color:var(--green);font-weight:650}.symbol{font-family:system-ui}.instrument-body{padding:28px 38px 24px}.tempo-head{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted)}.state{display:flex;gap:7px;align-items:center;font-size:12px}.state:before{content:'';width:6px;height:6px;border-radius:50%;background:#a7b3a0}.running .state:before{background:#4b9364;box-shadow:0 0 0 4px #e5f1dc}.tempo-readout{display:flex;justify-content:center;align-items:center;gap:24px;padding:8px 0 3px}.step{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);font-size:24px}.step:hover{background:var(--soft)}.tempo-value{text-align:center;min-width:170px}.tempo-value input{width:190px;border:0;background:transparent;text-align:center;color:var(--ink);font-size:92px;line-height:1.2;letter-spacing:-5px;font-weight:550;font-variant-numeric:tabular-nums;padding:0;appearance:textfield}.tempo-value input::-webkit-inner-spin-button{appearance:none}.tempo-unit{font-size:11px;letter-spacing:2px;color:var(--muted);display:block}.tempo-name{text-align:center;font-size:12px;color:var(--muted);margin:10px 0 23px}.range{appearance:none;display:block;width:100%;height:5px;border-radius:5px;background:linear-gradient(to right,var(--green) 0%,var(--green) var(--fill,33%),#e4eadc var(--fill,33%),#e4eadc 100%);cursor:pointer;accent-color:var(--green)}.range::-webkit-slider-thumb{appearance:none;width:17px;height:17px;border-radius:50%;background:var(--green);border:3px solid var(--paper);box-shadow:0 0 0 1px var(--green)}.range::-moz-range-thumb{width:13px;height:13px;border-radius:50%;background:var(--green);border:2px solid var(--paper)}.range-labels{display:flex;justify-content:space-between;color:#819080;font-size:10px;margin-top:10px}.tempo-shortcuts{display:flex;justify-content:center;gap:8px;margin:20px 0 22px}.chip{background:#f5f6ef;border:1px solid #e6eadf;color:var(--muted);border-radius:8px;min-height:34px;padding:5px 12px;font-size:12px;white-space:nowrap}.chip:hover,.chip[aria-pressed=true]{background:#e5efdb;color:var(--deep);border-color:#b6cf9e}.beats{display:flex;justify-content:center;gap:16px;height:48px;align-items:center;margin-bottom:17px}.beat{width:34px;height:34px;border:1px solid #d5decc;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;background:#f0f3e8;color:#708165;transition:background .06s,transform .06s}.beat:first-child{border-color:#adc794;color:var(--green)}.beat.active{background:var(--green);color:#fff;border-color:var(--green);transform:scale(1.1)}.play{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;min-height:55px;background:var(--green);color:white;border:0;border-radius:12px;font-size:16px;font-weight:600;box-shadow:0 4px 10px #28644b13}.play:hover{background:var(--deep)}.play-icon{font-size:15px;line-height:1;width:18px}.quick-actions{display:flex;justify-content:center;gap:8px;margin:13px 0 0}.text-button{border:0;background:transparent;min-height:36px;padding:7px 11px;font-size:12px;color:var(--muted)}.text-button:hover{color:var(--green);background:var(--soft);border-radius:7px}.kbd{font-size:10px;border:1px solid #dce4d6;border-radius:4px;padding:2px 5px;margin-left:4px}.settings{border-top:1px solid var(--line);padding:24px 30px}.setting-row{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:20px}.setting-row:last-child{margin-bottom:0}.setting-label{font-size:13px;font-weight:550}.setting-label small{display:block;font-size:11px;color:var(--muted);font-weight:400;margin-top:5px}.segmented{display:flex;gap:5px}.segmented button{min-width:37px;min-height:36px;border:1px solid var(--line);background:transparent;border-radius:8px;font-size:13px;color:var(--muted)}.segmented button[aria-pressed=true]{background:var(--green);border-color:var(--green);color:white}.switch-label{display:flex;align-items:center;gap:10px;font-size:13px;cursor:pointer}.switch{appearance:none;width:35px;height:21px;background:#cfd8c8;border-radius:20px;position:relative;cursor:pointer;margin:0;flex-shrink:0}.switch:before{content:'';position:absolute;top:3px;left:3px;width:15px;height:15px;border-radius:50%;background:white;transition:transform .15s}.switch:checked{background:var(--green)}.switch:checked:before{transform:translateX(14px)}details.advanced{border-top:1px solid var(--line);padding-top:18px;margin-top:22px}summary{cursor:pointer;font-size:12px;color:var(--muted);list-style:none;display:flex;align-items:center;justify-content:space-between}summary::-webkit-details-marker{display:none}summary:after{content:'＋';font-size:18px}details[open]>summary:after{content:'−'}details.advanced[open]>summary{margin-bottom:22px}.volume-row{display:flex;gap:12px;align-items:center}.volume-row .range{flex:1;width:100px}.volume-row output{font-size:11px;min-width:32px}.volume-row button{font-size:12px;padding:8px;border:0;background:var(--soft);border-radius:7px}.small-note{font-size:11px;color:var(--muted);line-height:1.8;margin:14px 0 0}.instrument-foot{display:flex;justify-content:center;gap:7px;font-size:11px;color:var(--muted);background:#f7f8f2;padding:13px;border-top:1px solid var(--line)}.sidebar{display:flex;flex-direction:column;gap:18px}.session-card{border:1px solid #d9e4ce;background:#eaf0df;border-radius:21px;padding:25px}.card-label{font-size:12px;letter-spacing:.7px;color:#526c4b;margin:0 0 14px;display:flex;justify-content:space-between}.card-label span{font-size:16px}.session-card h2{font-size:17px;margin:0 0 8px;font-weight:600}.session-card .description{font-size:12px;color:#6b7d5e;line-height:1.8;margin:0}.clock{font-size:45px;letter-spacing:-1.5px;margin:21px 0 4px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1}.clock-label{font-size:11px;color:var(--muted);margin:9px 0 15px}.progress{width:100%;height:4px;background:#d4dfc7;border-radius:4px;overflow:hidden}.progress i{display:block;background:var(--green);height:100%;width:0}.duration-presets{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;margin:18px 0 14px}.duration-presets button{background:#f6f8ee;padding:9px 5px;min-height:38px}.duration-presets button[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.duration-custom{display:flex;gap:9px;align-items:center;font-size:11px;color:var(--muted);margin:12px 0}.duration-custom input{width:55px;border:1px solid #cbd9bd;background:var(--paper);border-radius:7px;padding:7px;text-align:center;color:var(--ink)}.duration-custom button{margin-left:auto}.outlined-link{display:block;border:1px solid #becfb0;text-align:center;border-radius:9px;padding:11px;font-size:12px;text-decoration:none;margin-top:20px;color:var(--green)}.hint-card{border:1px solid var(--line);background:#ffffff66;border-radius:19px;padding:23px}.hint-card h2{font-size:13px;margin:0 0 13px;font-weight:600}.hint-card p{font-size:12px;line-height:1.95;color:var(--muted);margin:0}.hint-number{font-family:Georgia,serif;font-size:26px;color:#a6bc88;display:block;margin-bottom:12px}.shortcut-note{font-size:11px;color:var(--muted);line-height:1.9;padding:0 10px}.notice{padding:10px 14px;border-radius:9px;background:#edf2e4;border:1px solid #cedcbf;font-size:12px;line-height:1.7;margin:12px 0 0}.error{color:#9f402e;background:#fff2eb;border-color:#efc7b9}.notice:empty{display:none}.pending{font-size:11px;text-align:center;color:#677d4a;min-height:18px;margin:8px 0 0}.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;margin:39px 0 0}.benefit{display:flex;align-items:center;justify-content:center;gap:11px;font-size:12px}.benefit b{display:block;font-weight:550}.benefit small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.benefit svg{width:22px;height:22px;stroke:#638650;fill:none;stroke-width:1.5;flex-shrink:0}.reading{padding:50px 0 35px;display:grid;grid-template-columns:1fr 1fr;gap:65px}.reading h2{font-size:21px;font-weight:550;margin:0 0 22px;letter-spacing:-.4px}.reading p,.reading li{font-size:13px;line-height:1.95;color:var(--muted)}.reading ol{padding-left:21px}.reading li{padding-left:5px;margin-bottom:12px}.reading strong{font-weight:550;color:var(--ink)}.faq details{border-bottom:1px solid var(--line);padding:15px 0}.faq details:first-of-type{padding-top:0}.faq summary{font-size:13px;color:var(--ink);line-height:1.8;gap:15px}.faq p{margin:9px 0 0;font-size:12px}.site-footer{border-top:1px solid var(--line);padding:24px 0 35px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px}.site-footer a{text-decoration:none}.site-footer .footer-links{display:flex;gap:20px}.article{max-width:720px;margin:60px auto;line-height:1.9}.article h1{font-size:34px}.article h2{font-size:20px;margin-top:28px}.article p,.article li{font-size:15px;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:20px;background:var(--paper);color:var(--ink);padding:27px;max-width:440px;width:calc(100% - 40px);box-shadow:0 20px 80px #10281d33}dialog::backdrop{background:#10281d66;backdrop-filter:blur(3px)}dialog h2{font-size:21px;margin-top:0}dialog p{font-size:14px;line-height:1.8;color:var(--muted)}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:24px}.dialog-actions button{min-height:42px;border-radius:9px;padding:9px 20px;border:1px solid var(--line);background:transparent;color:var(--ink)}.dialog-actions .confirm{background:var(--green);border-color:var(--green);color:white}.copy-field{width:100%;padding:10px;border:1px solid var(--line);border-radius:9px;font-size:12px;background:white;color:var(--ink)}.no-js{margin:20px;background:#fff0df;padding:20px;border-radius:12px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
@media(min-width:1200px){.shell{max-width:1170px}.hero{padding-top:50px}.workspace{grid-template-columns:minmax(0,1fr) 314px;gap:24px}.instrument-body{padding-left:50px;padding-right:50px}}
@media(max-width:850px){.shell{padding:0 24px}.workspace{grid-template-columns:minmax(0,1fr) 270px;gap:16px}.instrument-body{padding:25px}.settings{padding:22px}.hero-art{margin-right:5px}h1{font-size:36px}.session-card{padding:22px}.reading{gap:30px}.tempo-readout{gap:12px}.tempo-value input{font-size:80px;width:160px}.tempo-value{min-width:150px}}
@media(max-width:700px){.shell{padding:0 20px}.site-header{height:74px}.brand{font-size:18px}.brand small{display:none}.header-links{gap:17px;font-size:12px}.hero{padding:30px 0 25px}.hero-art{width:80px;height:100px;margin:0;flex-shrink:0}.hero-art:before{inset:15px 0}.hero-art:after{inset:30px -3px}.pendulum{height:65px;left:40px;top:20px}.hero h1{font-size:29px;letter-spacing:-1px}.intro{font-size:12px;line-height:1.9}.eyebrow{font-size:10px;margin-bottom:10px}.workspace{grid-template-columns:1fr}.sidebar{display:grid;grid-template-columns:1fr 1fr;gap:14px}.shortcut-note{grid-column:1/-1}.session-card,.hint-card{padding:20px}.session-card{grid-column:1/-1}.session-card .session-inner{display:grid;grid-template-columns:1fr 1fr;gap:20px}.sidebar .hint-card{grid-column:1/-1}.sidebar .hint-number{float:left;margin:0 17px 20px 0}.hint-card h2{margin-bottom:7px}.clock{margin-top:17px}.mode-tabs{margin:15px 15px 0}.instrument-body{padding:23px 25px 19px}.tempo-value input{font-size:88px;width:180px}.tempo-readout{gap:22px}.tempo-value{min-width:180px}.tempo-name{margin-bottom:22px}.settings{padding:22px 25px}.reading{grid-template-columns:1fr;gap:30px;padding:35px 0}.benefits{gap:12px;margin-top:26px;padding:21px 0}.benefit{flex-direction:column;text-align:center;gap:8px;font-size:11px}.benefit small{font-size:9px}.site-footer{font-size:10px;flex-wrap:wrap;padding-bottom:25px}.clock{font-size:39px}.duration-presets{margin:4px 0 8px}.duration-custom{flex-wrap:wrap}.duration-custom label{flex-basis:100%}.duration-custom button{margin:0}.outlined-link{margin-top:16px}.kbd{display:none}}
@media(max-width:370px){.shell{padding:0 13px}.header-links{gap:12px}.hero-art{display:none}.hero h1{font-size:28px}.tempo-readout{gap:14px}.tempo-value input{width:145px;font-size:76px}.tempo-value{min-width:145px}.instrument-body{padding:22px 20px 18px}.step{width:37px;height:37px}.settings{padding:20px}.tempo-shortcuts{gap:6px}.chip{padding:5px 10px}.setting-row{gap:8px}.segmented button{min-width:32px}.session-card .session-inner{gap:15px}.session-card{padding:18px}.session-card h2{font-size:15px}.clock{font-size:35px}.quick-actions .text-button{font-size:11px;padding:7px}.benefits{gap:8px}.reading h2{font-size:20px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;scroll-behavior:auto!important}.beat.active{transform:none}}
.inline-timer{display:none}
@media(max-width:700px){.hero-art{display:none}.hero h1{font-size:30px}.hero{padding:24px 0 22px}.inline-timer{display:block;background:#f0f5e7;border:1px solid #dce7d0;border-radius:12px;padding:12px;margin-bottom:14px}.inline-time-label{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:10px}.inline-time-label strong{font-size:23px;font-weight:550;color:var(--ink);font-variant-numeric:tabular-nums}.inline-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}.inline-presets button{padding:5px;min-height:34px;font-size:11px;background:var(--paper)}.inline-presets button[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.custom-time-link{display:block;text-align:right;font-size:10px;margin-top:8px;color:var(--muted)}body[data-mode=jogging] .tempo-shortcuts{display:none}body[data-mode=jogging] .beats{height:33px;margin:15px 0}body[data-mode=jogging] .tempo-name{margin-bottom:15px}body[data-mode=jogging] .tempo-readout{padding-top:1px}body[data-mode=jogging] .tempo-value input{font-size:72px}body[data-mode=jogging] .instrument-body{padding-top:17px}body[data-mode=jogging] .session-card .duration-presets{display:none}}
@media(max-width:370px){.hero h1{font-size:27px}}