/* Independent public website; no mini-program, login or management code. */
:root{color-scheme:light;--green:#087e68;--green-dark:#174c3d;--ink:#213e35;--muted:#5e7167;--paper:#fbfcf8;--line:#dce5dd;--soft:#edf4eb;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a,summary{ -webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--green);outline-offset:5px;border-radius:4px}img{display:block;max-width:100%;height:auto}svg{display:block;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.35}p{overflow-wrap:break-word}.wrap{width:min(1160px,calc(100% - 80px));margin-inline:auto}.skip-link{position:fixed;z-index:30;left:24px;top:-100px;background:var(--green);color:#fff;padding:12px 20px}.skip-link:focus{top:16px}.site-header{min-height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}.brand img{border-radius:11px}.brand>span{font-size:22px;font-weight:750;line-height:1.3;letter-spacing:1px}.brand small{display:block;font-size:10px;color:var(--muted);font-weight:400;letter-spacing:1.6px;margin-top:6px}.site-header nav{display:flex;gap:34px;font-size:14px}.site-header nav a,.footer-top a,.footer-bottom a{transition:color .2s}.site-header nav a:hover,.footer-top a:hover,.footer-bottom a:hover{color:var(--green)}.nav-cta{font-size:14px;font-weight:600;display:inline-flex;gap:16px;align-items:center;min-height:44px;border-bottom:1px solid var(--green)}.nav-cta span{font-size:19px}.hero{padding-top:66px;padding-bottom:78px;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--green);font-size:13px;font-weight:600;letter-spacing:2px;margin-bottom:22px}.seed-dot{width:8px;height:8px;background:var(--green);border-radius:50%}.hero h1{font-size:clamp(40px,4.4vw,62px);font-weight:750;letter-spacing:-2px;line-height:1.37}.hero h1 span{color:var(--green)}.hero-description{margin-top:26px;color:var(--muted);font-size:17px;line-height:1.95}.button{margin-top:32px;display:inline-flex;align-items:center;justify-content:center;gap:24px;background:var(--green);color:#fff;min-height:56px;padding:14px 24px;border-radius:9px;font-size:15px;font-weight:600;transition:background .2s,box-shadow .2s}.button svg{width:20px;height:20px}.button:hover{background:#066653;box-shadow:0 5px 15px #087e681a}.hero-note{display:flex;align-items:center;gap:10px;margin-top:22px;font-size:11px;color:var(--muted)}.hero-note i{width:3px;height:3px;background:#87968b;border-radius:50%}.hero-scene{height:484px;position:relative;isolation:isolate}.hero-scene:before{content:"";position:absolute;width:430px;height:430px;background:#e8f0df;border-radius:50%;left:50%;top:18px;transform:translateX(-50%);z-index:-2}.scene-orbit{position:absolute;border:1px solid #bdceb6;border-radius:50%;z-index:-1}.orbit-one{width:470px;height:220px;top:105px;left:50%;transform:translateX(-50%) rotate(-30deg);opacity:.45}.orbit-two{width:385px;height:385px;top:40px;left:50%;transform:translateX(-50%);border-style:dashed;opacity:.4}.scene-sprout{position:absolute;right:7px;top:0;width:95px;height:110px;stroke:#7c9c72;stroke-width:1.5;transform:rotate(18deg)}.practice-paper{position:absolute;top:52px;left:50%;width:330px;transform:translateX(-50%) rotate(-4deg);background:#fffdf8;border:1px solid #e6e4d9;padding:22px;border-radius:17px;box-shadow:0 18px 55px #425d3e15}.paper-top{display:flex;align-items:center;justify-content:space-between}.paper-logo{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:700}.paper-logo img{border-radius:7px}.paper-dots{letter-spacing:3px;font-size:12px;color:#8c998e}.paper-greeting{font-size:18px;font-weight:600;margin:22px 0}.paper-math{display:flex;align-items:center;justify-content:space-between;background:#ecf4eb;border:1px solid #deeadb;padding:17px 18px;border-radius:11px}.micro-label{font-size:10px;display:block;color:#58704f;margin-bottom:9px;letter-spacing:1px}.paper-math strong{font-size:33px;font-weight:600;letter-spacing:1px;display:block;line-height:1.3;color:#31583b}.paper-math em{font-style:normal;font-weight:300}.paper-math strong>span{display:inline-block;color:#6b8561;min-width:28px;text-align:center;border-bottom:1px solid #9eb695}.pencil-mark{font-size:39px;line-height:1;color:#6b8561;transform:rotate(10deg)}.paper-answer{display:flex;justify-content:space-between;align-items:center;margin-top:17px;padding:9px 16px;border:1px solid #dce6d6;border-radius:9px;font-size:20px;color:var(--green);font-weight:600}.answer-check{font-size:13px;background:#e9f1e3;border-radius:50%;width:25px;height:25px;text-align:center;line-height:25px}.paper-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:20px;font-size:9px;color:var(--muted)}.paper-progress{display:flex;gap:4px}.paper-progress i{width:5px;height:5px;background:#dbe5d7;border-radius:50%}.paper-progress i:first-child{background:#67895c}.focus-note{position:absolute;left:-1px;bottom:69px;display:flex;gap:13px;align-items:center;width:215px;background:#fffdf6;border:1px solid #eae4cf;border-radius:13px;padding:16px;transform:rotate(-7deg);box-shadow:0 12px 26px #5c594112}.focus-mark{width:43px;height:43px;border-radius:50%;background:#f2e6c9;color:#866c35;display:grid;place-items:center}.focus-mark svg{width:26px;height:26px}.focus-note div>span{font-size:10px;color:#746445}.focus-note strong{display:block;font-size:27px;line-height:1.4;font-weight:500;color:#635d40;letter-spacing:1px}.focus-note strong small{display:block;font-weight:400;font-size:9px;letter-spacing:1px}.english-note{position:absolute;right:-8px;bottom:39px;display:flex;align-items:center;gap:11px;border:1px solid #dfdced;border-radius:12px;background:#f3f0fa;padding:15px 18px;transform:rotate(6deg);box-shadow:0 10px 20px #5b4f7310}.english-symbol{font-family:Georgia,serif;font-size:34px;color:#7c6a9c}.english-note strong{display:block;font-family:Georgia,serif;font-size:13px;font-weight:400;color:#695780}.english-note div>span{font-size:9px;color:#7b6a8d}.scene-caption{position:absolute;bottom:0;left:50%;transform:translateX(-50%);font-size:10px;color:#788773;letter-spacing:2px}.intro-strip{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);font-size:13px;letter-spacing:1px}.intro-strip>span:last-child{display:flex;gap:26px;font-size:12px}.intro-strip i{font-style:normal;color:#a5b3a8}.section-space{padding-block:96px}.section-heading{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:38px}.section-heading .eyebrow{margin-bottom:13px}h2{font-size:34px;letter-spacing:-.8px;font-weight:650}.section-heading>p{font-size:14px;color:var(--muted);line-height:1.8}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.tool{padding:29px 27px 22px;border:1px solid transparent;border-radius:16px}.tool-math{background:#edf3ed;border-color:#e1e9dc}.tool-english{background:#f2f0f6;border-color:#e8e3f0}.tool-focus{background:#f7f2e6;border-color:#eee6d3}.tool-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.tool-category{font-size:10px;letter-spacing:1px;color:var(--muted)}.tool-top svg{width:38px;height:38px;color:#607d57}.tool-english .tool-top svg{color:#807194}.tool-focus .tool-top svg{color:#978250}.tool h3{font-size:22px;font-weight:650;margin-bottom:15px}.tool>p{font-size:14px;color:var(--muted);line-height:1.9;min-height:108px}.tool-example{min-height:156px;padding:25px 12px 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:17px;color:#5e7956}.tool-example>span:first-child{font-size:29px;letter-spacing:2px;font-weight:400}.tool-example b{font-weight:500}.tool-example small{font-size:10px;letter-spacing:.4px;color:var(--muted)}.tool-example .example-line{width:125px;border-bottom:1px solid #b8cbb0;transform:rotate(-3deg)}.english-example>span:first-child{display:flex;align-items:center;gap:20px}.english-example b{font:48px/1 Georgia,serif;color:#817195}.english-example em{font:italic 15px/1.6 Georgia,serif;letter-spacing:0;color:#776489}.english-example .example-line{border-color:#bdb1cf}.focus-example{gap:12px;padding-top:10px}.tool-example .timer-ring{display:grid;place-items:center;width:95px;height:95px;border:4px solid #c8b36e;border-right-color:#e7ddbe;border-radius:50%;color:#877440}.timer-ring b{font-size:29px;letter-spacing:0}.timer-ring small{font-size:11px;margin-left:3px;color:inherit}.tool-footnote{display:block;padding-top:17px;border-top:1px solid #304a3520;font-size:10px;letter-spacing:.4px;color:var(--muted)}.section-note{font-size:11px;color:var(--muted);margin-top:20px}.companionship{background:#eef3ea}.companionship-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:100px}.companionship-title h2{font-size:42px;line-height:1.5}.companionship-title>p:not(.eyebrow){color:var(--muted);font-size:15px;line-height:1.95;margin-top:22px}.growing-line{display:flex;gap:27px;align-items:flex-end;margin-top:36px;height:60px;color:#68945e}.growing-line>span{width:5px;height:5px;background:#9bb58c;border-radius:50%;margin-bottom:8px}.growing-line>span:nth-child(2){width:8px;height:8px}.growing-line>span:nth-child(3){width:12px;height:12px}.growing-line svg{width:54px;height:62px;stroke-width:1.2}.companionship-points article{display:flex;gap:23px;padding:25px 0;border-top:1px solid #cfdacb}.companionship-points article:last-child{padding-bottom:0}.point-number{font-size:11px;color:#6c8465;padding-top:6px;font-variant-numeric:tabular-nums}.companionship-points h3{font-size:19px;font-weight:600;margin-bottom:12px}.companionship-points p{color:var(--muted);font-size:14px;line-height:1.9}.text-link{display:inline-flex;align-items:center;min-height:44px;gap:16px;color:var(--green);font-size:13px;text-decoration:underline;text-decoration-color:#acc2b0;text-underline-offset:6px;transition:color .2s}.text-link:hover{color:#066653;text-decoration-color:currentColor}.companionship-points .text-link{margin-top:10px}.start-section{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.start-copy h2{font-size:42px;line-height:1.5}.start-copy>p:last-child{font-size:16px;color:var(--muted);margin-top:23px;line-height:1.9}.launch-panel{border:1px solid var(--line);background:#fffef9;border-radius:16px;padding:33px;display:grid;grid-template-columns:76px 1fr;gap:20px 24px}.launch-panel>img{border-radius:18px}.release-status{display:flex;align-items:center;gap:7px;font-size:10px;letter-spacing:.8px;color:var(--muted);margin-bottom:10px}.release-status i{background:#a48034;width:6px;height:6px;border-radius:50%}.launch-panel h3{font-size:24px;letter-spacing:1px;font-weight:650;margin-bottom:10px}.launch-panel p{font-size:13px;color:var(--muted);line-height:1.9}.launch-guidance{grid-column:1/-1;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);font-size:11px}.launch-panel>.text-link{grid-column:1/-1;justify-self:start}.faq-section{display:grid;grid-template-columns:1fr 1.35fr;gap:90px;padding-bottom:96px}.faq-section .eyebrow{margin-bottom:12px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:19px 0;font-size:14px;font-weight:500}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font-size:21px;line-height:1;color:var(--green);font-weight:300;transition:transform .2s}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-list details>p{padding:0 28px 22px 0;color:var(--muted);font-size:13px;line-height:1.95}.faq-list p a,.data-page p a{color:var(--green);text-decoration:underline;text-underline-offset:4px;overflow-wrap:anywhere}.site-footer{border-top:1px solid var(--line);padding-top:30px;padding-bottom:24px}.footer-top{display:flex;justify-content:space-between;align-items:center;gap:28px;margin-bottom:30px}.footer-top .brand>span{font-size:18px}.footer-top .brand small{font-size:10px;letter-spacing:.5px}.footer-top>div{display:flex;gap:28px;font-size:12px}.footer-top>div a{display:inline-flex;min-height:44px;align-items:center}.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:20px;border-top:1px solid var(--line);font-size:10px;letter-spacing:.4px;color:var(--muted)}.footer-bottom a{min-height:44px;display:inline-flex;align-items:center}.footer-divider{margin:0 10px;color:#94a18e}.data-page{padding-top:72px;padding-bottom:100px}.data-page h1{font-size:48px;letter-spacing:-1px}.data-intro{font-size:17px;color:var(--muted);margin-top:20px}.data-layout{display:grid;grid-template-columns:200px 1fr;gap:80px;margin-top:72px}.data-layout aside{display:flex;flex-direction:column;gap:8px;align-items:flex-start;font-size:14px}.data-layout aside a{display:flex;min-height:44px;align-items:center;color:var(--green)}.data-layout section{scroll-margin-top:30px;border-top:1px solid var(--line);padding-top:30px;margin-bottom:48px;max-width:720px}.data-layout section:last-child{margin-bottom:0}.data-layout h2{font-size:25px;margin-bottom:22px}.data-layout p{color:var(--muted);line-height:2;margin-bottom:18px}.data-layout p:last-child{margin-bottom:0}
@media(min-width:1500px){.hero{padding-top:82px;padding-bottom:94px}.hero-scene{height:510px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.site-header nav{gap:24px}.hero{gap:10px;padding-top:50px}.hero-scene{transform:scale(.88);transform-origin:center right}.hero h1{font-size:46px}.hero-description{font-size:15px}.hero-note{font-size:10px;gap:7px}.tool{padding:24px 20px 20px}.tool>p{font-size:13px;min-height:125px}.tool-footnote{font-size:9px}.companionship-layout,.start-section{gap:60px}.launch-panel{padding:26px;gap:20px}.faq-section{gap:60px}}
@media(max-width:800px){.wrap{width:calc(100% - 48px)}.site-header{min-height:94px}.site-header nav{gap:20px;font-size:12px}.site-header .nav-cta{display:none}.brand>span{font-size:20px}.brand small{font-size:9px}.hero{padding-top:38px;padding-bottom:52px;grid-template-columns:1fr;gap:14px}.hero-copy{max-width:570px}.hero h1{font-size:56px}.hero-description{font-size:17px}.hero-note{font-size:11px;gap:10px}.hero-scene{width:530px;max-width:100%;height:490px;justify-self:center;transform:none;transform-origin:center}.intro-strip{font-size:12px}.intro-strip>span:last-child{gap:14px}.section-space{padding-block:68px}h2{font-size:30px}.section-heading>p{font-size:13px}.tool-grid{grid-template-columns:1fr;gap:16px}.tool{position:relative;padding:27px 28px 22px;min-height:240px;display:grid;grid-template-columns:1fr 190px;column-gap:30px}.tool-top{grid-column:1;margin-bottom:18px}.tool-top svg{width:30px;height:30px}.tool h3{grid-column:1;font-size:23px}.tool>p{grid-column:1;min-height:0;font-size:14px}.tool-example{grid-column:2;grid-row:1/4;align-self:center;padding:10px 0}.tool-footnote{grid-column:1/-1;font-size:10px;margin-top:20px}.companionship-layout{grid-template-columns:1fr;gap:35px}.companionship-title h2{font-size:36px}.companionship-title h2 br{display:none}.growing-line{display:none}.companionship-points article{padding-block:25px}.start-section{grid-template-columns:1fr;gap:34px}.start-copy h2{font-size:36px}.launch-panel{max-width:540px;padding:30px}.faq-section{grid-template-columns:1fr;gap:30px;padding-bottom:68px}.faq-section h2{font-size:30px}.footer-top{align-items:flex-start}.footer-top>div{gap:16px;font-size:11px}.data-page{padding-top:48px;padding-bottom:68px}.data-layout{grid-template-columns:1fr;gap:30px;margin-top:42px}.data-layout aside{flex-direction:row;gap:25px}.data-page h1{font-size:40px}}
@media(max-width:480px){.wrap{width:calc(100% - 40px)}.site-header{min-height:88px;gap:16px}.site-header .brand small{display:none}.brand{gap:9px}.brand img{width:37px;height:37px;border-radius:9px}.brand>span{font-size:21px;letter-spacing:0}.site-header nav{gap:17px}.site-header nav a{font-size:11px;min-height:44px;display:flex;align-items:center}.site-header nav a:nth-child(2){display:none}.hero{padding-top:31px;padding-bottom:38px;gap:28px}.eyebrow{font-size:11px;letter-spacing:1.2px;margin-bottom:19px}.hero h1{font-size:43px;letter-spacing:-1.6px;line-height:1.45}.hero-description{font-size:15px;line-height:1.95;margin-top:21px}.button{font-size:14px;min-height:54px;margin-top:26px;padding-inline:20px;gap:22px}.hero-note{font-size:9px;gap:7px;margin-top:18px}.hero-scene{height:398px;width:100%}.hero-scene:before{width:315px;height:315px;top:31px}.orbit-one{width:335px;height:170px;top:96px}.orbit-two{width:287px;height:287px;top:43px}.scene-sprout{width:65px;height:80px;right:-5px;top:4px}.practice-paper{width:263px;top:39px;padding:18px;border-radius:14px}.paper-top img{width:25px;height:25px}.paper-logo{font-size:10px}.paper-greeting{font-size:15px;margin-block:16px}.paper-math{padding:13px}.paper-math strong{font-size:28px}.micro-label{font-size:9px;margin-bottom:7px}.pencil-mark{font-size:30px}.paper-answer{margin-top:13px;font-size:16px;padding:7px 12px}.answer-check{font-size:11px;width:21px;height:21px;line-height:21px}.paper-bottom{font-size:7px;margin-top:16px}.paper-progress{gap:3px}.paper-progress i{width:4px;height:4px}.focus-note{width:165px;padding:12px;gap:9px;left:-7px;bottom:48px;border-radius:11px}.focus-mark{width:33px;height:33px}.focus-mark svg{width:21px;height:21px}.focus-note div>span{font-size:8px}.focus-note strong{font-size:23px}.focus-note strong small{font-size:8px}.english-note{padding:11px;gap:8px;right:-6px;bottom:30px;border-radius:9px}.english-symbol{font-size:27px}.english-note strong{font-size:10px}.english-note div>span{font-size:8px}.scene-caption{font-size:9px;bottom:0}.intro-strip{align-items:flex-start;flex-direction:column;gap:8px;padding-block:20px;font-size:12px}.intro-strip>span:last-child{font-size:10px;gap:18px}.section-space{padding-block:53px}.section-heading{align-items:flex-start;flex-direction:column;gap:16px;margin-bottom:26px}.section-heading h2{font-size:27px;letter-spacing:-.7px}.section-heading>p{font-size:13px}.section-heading>p br{display:none}.tool{display:block;padding:25px 25px 21px;min-height:0}.tool-top{margin-bottom:16px}.tool-category{font-size:10px}.tool h3{font-size:24px}.tool>p{font-size:14px;line-height:1.95}.tool-example{min-height:152px;padding-block:24px 12px;gap:14px}.tool-footnote{font-size:10px;margin-top:15px;padding-top:15px;letter-spacing:0}.section-note{font-size:10px;line-height:1.9}.companionship-title h2{font-size:32px}.companionship-title h2 br{display:initial}.companionship-title>p:not(.eyebrow){font-size:14px}.companionship-layout{gap:28px}.companionship-points article{gap:18px;padding-block:23px}.companionship-points h3{font-size:18px}.companionship-points p{font-size:14px}.point-number{font-size:10px}.start-copy h2{font-size:33px}.start-copy>p:last-child{font-size:15px;margin-top:20px}.launch-panel{padding:24px;grid-template-columns:58px 1fr;gap:17px}.launch-panel>img{width:58px;height:58px;border-radius:14px}.launch-panel h3{font-size:23px}.launch-panel p{font-size:12px}.release-status{font-size:9px;margin-bottom:9px}.launch-guidance{font-size:10px;padding-top:17px}.faq-section{padding-bottom:53px;gap:25px}.faq-section h2{font-size:29px}.faq-list summary{font-size:14px;line-height:1.7;padding-block:19px}.faq-list details>p{font-size:13px}.site-footer{padding-top:25px}.footer-top{flex-direction:column;gap:14px;margin-bottom:16px}.footer-top .brand small{display:block}.footer-top>div{gap:25px;font-size:12px}.footer-bottom{flex-wrap:wrap;gap:0;font-size:9px;padding-top:17px}.footer-bottom>span{width:100%;margin-bottom:5px}.footer-divider{margin-inline:6px}.data-page{padding-top:35px;padding-bottom:50px}.data-page h1{font-size:35px}.data-intro{font-size:15px}.data-layout{margin-top:30px;gap:25px}.data-layout aside{font-size:13px;gap:23px}.data-layout section{padding-top:25px;margin-bottom:35px}.data-layout h2{font-size:23px}.data-layout p{font-size:15px;line-height:1.95}.data-page+.site-footer .footer-bottom{justify-content:flex-start;gap:0 25px}}
.data-document .site-header .nav-cta{display:inline-flex}
@media(max-width:480px){.orbit-one{width:min(335px,calc(100vw - 80px))}.hero-description,.tool>p,.companionship-points p,.faq-list details>p,.data-layout p{font-size:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}