:root{--ink:#102c45;--muted:#687c8d;--green:#123b58;--lime:#c9e8e8;--paper:#f6f9fb;--line:#e0e8ee;--navy:#071e35;--teal:#178590}::selection{background:#bde7e8;color:#09283e}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-color:#168e99}.button.dark{background:#103752}.button.dark:hover{background:#195574}.button.lime{background:#c4e7e5;color:#0c3446}.green-text,.text-link{color:#187c89}.eyebrow{color:#5c7c8b}.brand{gap:10px;letter-spacing:-.8px;color:#0a2541}.brand>svg{width:40px;height:44px}.brand-lockup{display:flex;flex-direction:column;gap:6px}.brand-lockup>span{font-size:23px;font-weight:750;letter-spacing:-1px}.brand-lockup em{font-style:normal;color:#168e99}.brand-lockup small{font-size:10px;letter-spacing:4px;font-weight:600}.brand-light{color:white}.brand-light .brand-lockup em{color:#65c4c9}.brand-light .brand-lockup small{color:#b8cbd4}.sidebar .brand{gap:8px}.sidebar .brand>svg{width:32px}.sidebar .brand-lockup>span{font-size:20px}.sidebar .brand-lockup small{font-size:9px;letter-spacing:3px}.app-shell{background:#f6f8fb}.sidebar{background:#fff;border-color:#dce6ec}.nav-item.active{background:#e9f1f5;color:#123e59}.nav-item:hover{background:#f0f5f8}.nav-item>span{line-height:1.35}.nav-item .nav-translation{display:block;color:#738693;font-size:10px;font-weight:400;margin-top:2px}.nav-item.active .nav-translation{color:#416d81}.goal-note,.welcome-banner{background:#eaf2f6;color:#123b58}.goal-note>svg{color:#158491}.welcome-banner h2{color:#10314e}.goal-note p{color:#58758a}.avatar{background:#dcebf1;color:#1c536e}.progress-track i{background:#258b98}.feedback-teaser{background:#eaf3f6}.positive{color:#168391}.reading{background:#e6f0f3;color:#286b80}.listening{background:#e9eef7;color:#526b98}.writing{background:#e6eff7;color:#365e85}.speaking{background:#e5f2f1;color:#318081}.dashboard-main h1{letter-spacing:-.7px}.app-header{background:#fff}.dashboard-footer{color:#6b7f8e}.sidebar .workspace-label{margin-top:28px}.sidebar nav .nav-item{min-height:43px}.brand-parallax{position:relative;--parallax:0px;--pointer-x:0px;--pointer-y:0px}.parallax-image{transform:translate3d(var(--pointer-x),calc(var(--parallax) + var(--pointer-y)),0) scale(1.13);will-change:transform}.lab-site{background:#fafcfd;color:#102c45;font-size:15px}.lab-wrap{width:min(1280px,calc(100% - 112px));margin-inline:auto}.lab-header{height:96px;padding:0 4%;display:flex;align-items:center;justify-content:space-between;gap:28px;background:#071e35;color:#fff;border-bottom:1px solid #ffffff16;position:relative;z-index:30}.lab-nav{display:flex;gap:32px}.lab-nav a{font-size:12px;line-height:1.5;color:#eff7fb}.lab-nav small{display:block;font-size:10px;color:#94aab9;margin-top:2px}.lab-header-actions{display:flex;align-items:center;gap:24px}.lab-teacher-link{font-size:12px}.lab-teacher-link span{color:#9bb2c3;margin-left:5px}.lab-btn{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:18px 24px;background:#c4e8e6;color:#0c3446;min-height:54px;border:1px solid transparent;font-weight:550;font-size:14px;transition:background .2s,transform .2s}.lab-btn:hover{background:#e0f5f1;transform:translateY(-2px)}.lab-btn.compact{min-height:42px;padding:10px 16px;font-size:12px;gap:9px}.lab-btn span{font-size:11px}.lab-menu{display:none;color:white;padding:8px}.lab-hero{background:#071e35;color:white;overflow:hidden}.lab-hero-scene{padding:55px 0 24px;min-height:730px;background:radial-gradient(ellipse at 80% 40%,#17546588,transparent 55%)}.lab-hero-backdrop{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.07;filter:grayscale(1);pointer-events:none}.lab-hero-grid{position:relative;display:grid;grid-template-columns:1.12fr 1fr;align-items:center;gap:65px}.lab-kicker{display:block;font-size:10px;letter-spacing:2px;font-weight:600;line-height:1.8;color:#417b89}.lab-hero .lab-kicker{color:#a1c7d0}.lab-kicker i{display:inline-block;width:6px;height:6px;background:#7ad5cf;border-radius:50%;margin-right:12px;vertical-align:middle}.lab-hero h1{font-size:clamp(54px,5.6vw,86px);font-weight:450;line-height:1.035;letter-spacing:-4px;margin:25px 0 18px}.lab-site em{font-weight:400;font-family:Georgia,Times New Roman,serif}.lab-hero h1 em{color:#94d7d7}.lab-hero-zh{font-size:17px;letter-spacing:3px;color:#d0dde4}.lab-hero-description{font-size:15px;line-height:1.75;color:#c0ced8;margin:25px 0}.lab-hero-description span{color:#8eaab9}.lab-cta-caption,.lab-hero-description span{display:block;font-size:11px;margin-top:10px}.lab-cta-caption{letter-spacing:1px;color:#92aab9}.lab-hero-foot{display:flex;justify-content:space-between;position:relative;border-top:1px solid #ffffff25;padding-top:22px;margin-top:38px;font-size:9px;letter-spacing:1.6px;color:#93b1c1}.lab-hero-foot>span>span{margin-left:35px}.lab-hero-foot a{display:flex;align-items:center;gap:16px}.score-stage{position:relative;padding:30px 20px 0;min-width:0;transform:translate3d(calc(var(--pointer-x) * -1),calc(var(--parallax) * -.3),0)}.score-orbit{position:absolute;inset:0 -25px 20px;border:1px solid #93c9da27;border-radius:50%;transform:rotate(-20deg)}.score-paper{position:relative;padding:28px 32px;background:#f5f4ed;color:#16334b;box-shadow:0 30px 90px #0005;transform:rotate(-4deg);border:1px solid #fff9;max-width:445px;margin:auto}.score-paper-head{display:flex;align-items:center;gap:12px;padding-bottom:19px;border-bottom:1px solid #18354c30}.score-paper-head>span{font-weight:700;font-size:19px;line-height:1.05;letter-spacing:1px}.score-paper-head b{font-size:7px;letter-spacing:1.8px;font-weight:500}.score-paper-head>svg:last-child{margin-left:auto}.score-paper-title{font-size:27px;line-height:1.15;letter-spacing:-.8px;margin-top:23px}.score-subtitle{font-size:10px;color:#657a84;margin:10px 0 21px}.score-result{position:relative;background:#e6eced;padding:21px 23px;overflow:hidden}.score-result>span{font-size:9px;letter-spacing:1.8px}.score-result>strong{display:block;font-size:94px;letter-spacing:-6px;line-height:1.15;font-weight:500}.score-result>strong>span{font-size:19px;letter-spacing:0;font-weight:400;color:#718e92}.score-result>small{font-size:10px}.score-cover{position:absolute;inset:0;background:#0f4c62;color:#c8e9e9;display:flex;align-items:center;justify-content:space-between;padding:27px;letter-spacing:2px;font-size:13px}.score-skills{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0;font-size:8px;color:#5d7481}.score-skills i{display:block;height:3px;background:#afc6c6;margin-top:8px}.score-paper-foot{display:flex;justify-content:space-between;border-top:1px solid #18354c30;padding-top:15px;font-size:8px;letter-spacing:.5px}.score-reveal-control{position:relative;max-width:350px;margin:32px auto 0;color:#a9c9d3}.score-reveal-control label{font-size:11px;display:flex;align-items:center;gap:8px}.score-reveal-control label span{font-size:9px;margin-left:auto}.score-reveal-control input{width:100%;height:14px;accent-color:#88cfce;cursor:ew-resize;margin:12px 0 5px}.score-reveal-control>small{display:block;text-align:center;font-size:8px;letter-spacing:.2px;color:#97b0bf}.lab-section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:52px}.lab-site h2{font-size:clamp(34px,3.6vw,52px);line-height:1.13;font-weight:450;letter-spacing:-1.7px}.lab-section-heading h2{margin-top:18px}.lab-site h2 em{color:#2a7e89}.lab-section-heading>p{max-width:345px;font-size:15px;color:#536a79;line-height:1.8}.lab-platform-features p span,.lab-section-heading p span{display:block;font-size:12px;color:#738593;margin-top:8px}.lab-space{padding-top:100px;padding-bottom:82px}.lab-space-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:start}.lab-space-main{height:500px;overflow:hidden;background:#e1e7e9}.lab-space-main>img{width:100%;height:100%;object-fit:cover;object-position:46% center}.lab-photo-caption{display:flex;justify-content:space-between;gap:15px;font-size:9px;letter-spacing:1.1px}.lab-space-main .lab-photo-caption{position:absolute;left:24px;right:24px;bottom:24px;color:#fff;z-index:2}.lab-space-main:after{content:"";position:absolute;inset:55% 0 0;background:linear-gradient(transparent,#061d3588);pointer-events:none}.lab-space-side>p{font-size:30px;line-height:1.2;letter-spacing:-.6px;padding:12px 0 29px}.lab-space-side>p em{color:#257485}.lab-space-side>p span{display:block;font-size:12px;color:#758791;margin-top:16px;letter-spacing:1px}.lab-space-side>.brand-parallax{height:280px;overflow:hidden;background:#d3e3ef}.lab-space-side img{height:100%;width:100%;object-fit:cover}.lab-space-side>.lab-photo-caption{margin-top:19px;color:#6c8391;font-size:8px}.lab-space-services{display:flex;justify-content:space-between;border-bottom:1px solid #d9e3e8;padding:35px 0 26px;font-size:16px;letter-spacing:-.3px}.lab-space-services small{margin-left:12px;color:#708793;font-size:11px}.lab-learning{background:#edf3f6;padding:86px 0}.lab-skills{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid #cddde4}.lab-skills>a{position:relative;padding:29px 24px 59px;border-right:1px solid #cddde4;transition:background .2s}.lab-skills>a:first-child{border-left:1px solid #cddde4}.lab-skills>a:hover{background:#fff9}.lab-skills>a>div{display:flex;justify-content:space-between;color:#357185;font-size:10px}.lab-skills h3{font-size:23px;margin:35px 0 15px;font-weight:500}.lab-skills h3 small{font-size:12px;color:#587789;margin-left:7px;font-weight:400}.lab-skills p{font-size:13px;line-height:1.6;max-width:220px}.lab-skills p span{display:block;font-size:10px;color:#6d8291;margin-top:10px}.lab-skill-arrow{position:absolute;bottom:22px;right:25px}.lab-platform-features{display:grid;grid-template-columns:repeat(3,1fr);gap:50px;padding-top:54px}.lab-platform-features svg{color:#398494}.lab-platform-features h3{font-size:16px;font-weight:500;margin:15px 0 10px}.lab-platform-features h3 span{display:block;font-size:11px;color:#637f8d;margin-top:5px}.lab-platform-features p{font-size:12px;color:#617683;line-height:1.8}.lab-platform-features p span{font-size:11px}.lab-founder{display:grid;grid-template-columns:.9fr 1.1fr;gap:90px;padding-block:120px;align-items:center}.lab-founder-photo{height:560px;overflow:hidden;background:#292c2c}.lab-founder-photo img{width:100%;height:100%;object-fit:cover}.lab-founder-photo>span{position:absolute;bottom:24px;left:25px;font-size:9px;letter-spacing:2px;color:white;z-index:1}.lab-founder-copy h2{margin:18px 0 24px}.lab-founder-copy h2 span{display:block;font-size:15px;letter-spacing:2px;margin-top:15px;color:#62818f}.lab-founder-intro{font-size:22px;line-height:1.4;margin-bottom:24px}.lab-founder-intro em{color:#337c88}.lab-founder-copy>p:not(.lab-founder-intro){font-size:13px;color:#546e7f;line-height:1.85}.lab-founder-copy .lab-translation{font-size:11px!important;color:#6c8490!important;margin-top:10px}.lab-founder-details{margin-top:28px;border-top:1px solid #dbe4e9;display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;padding-top:23px}.lab-founder-details>div>span{font-size:8px;color:#438491;letter-spacing:1px}.lab-founder-details p{font-size:12px;line-height:1.8;margin-top:12px}.lab-faq{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;padding-bottom:105px}.lab-faq h2{font-size:39px;margin-top:17px}.lab-faq h2>span{display:block;font-size:13px;letter-spacing:1px;color:#748693;margin-top:20px}.lab-faq-item{border-bottom:1px solid #dde6eb}.lab-faq-item:first-child{border-top:1px solid #dde6eb}.lab-faq-item button{width:100%;display:flex;align-items:center;justify-content:space-between;padding:22px 0;text-align:left;font-size:15px;gap:20px}.lab-faq-item button small{display:block;font-size:11px;color:#7b8e99;margin-top:5px}.lab-faq-item>div{padding-bottom:25px;font-size:13px;color:#587183}.lab-faq-item p+p{font-size:11px;margin-top:9px;color:#768a97}.lab-visit{padding:83px 0;background:#0b2c45;color:#f0f5f8}.lab-visit .lab-kicker{color:#89bdc7}.lab-visit h2{font-size:clamp(42px,5.7vw,80px);letter-spacing:-3px;margin:25px 0}.lab-visit p{color:#afc9d4;font-size:16px}.lab-visit p span{display:block;font-size:12px;margin-top:8px}.lab-visit-bottom{display:flex;align-items:flex-end;justify-content:space-between;gap:35px;margin-top:50px;padding-top:30px;border-top:1px solid #ffffff25}.lab-visit-bottom>div{display:flex;gap:16px;color:#92c3ce}.lab-visit address{font-style:normal;font-size:13px;line-height:1.8;color:#c3d7e1}.lab-visit address span{display:block;font-size:12px;margin-top:9px;color:#94b5c5}.lab-footer{padding-block:48px 24px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:30px;align-items:start}.lab-footer>p{font-size:13px;color:#526e7f}.lab-footer>p span{font-size:11px;color:#718894}.lab-footer>div{display:flex;flex-direction:column;align-items:flex-end;gap:12px;font-size:11px}.lab-footer>small{grid-column:1/-1;border-top:1px solid #dce6eb;padding-top:20px;margin-top:8px;font-size:10px;color:#728795}.portal-page{display:grid;grid-template-columns:1.1fr 1fr;min-height:100svh;background:#f9fbfc}.portal-scene{background:#071e35;color:#fff;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between;padding:48px 52px;min-height:760px}.portal-scene>.brand{position:relative;z-index:2;align-self:flex-start}.portal-backdrop{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.24}.portal-scene:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#061e3588,#06233900 45%,#061e35ee)}.portal-scene-copy{position:relative;z-index:1;margin-top:85px;max-width:430px}.portal-scene-copy .lab-kicker{color:#a0c6cf}.portal-scene-copy h1{font-size:clamp(40px,4.7vw,68px);line-height:1.12;font-weight:450;letter-spacing:-2px;margin:22px 0}.portal-scene-copy h1 em{font-family:Georgia,serif;color:#8dd0d1;font-weight:400}.portal-scene-copy p{color:#bfd6df;font-size:14px}.portal-room{position:relative;z-index:1;margin:45px 0;width:65%;align-self:flex-end;border:6px solid #ffffffd9;box-shadow:0 15px 50px #0004;transform:translate3d(calc(var(--pointer-x) * -1),calc(var(--parallax) * -.5),0) rotate(-5deg)}.portal-room img{aspect-ratio:1.75;object-fit:cover;width:100%}.portal-scene-foot{position:relative;z-index:1;font-size:9px;letter-spacing:1px;color:#a4bdc8}.portal-form,.portal-scene-foot{display:flex;justify-content:space-between}.portal-form{padding:45px 9%;flex-direction:column;gap:40px}.portal-form .back-link{align-self:flex-start;font-size:12px}.portal-form .login-card{width:100%;max-width:430px;margin:auto;padding:30px 0}.portal-form .login-card h2{font-size:36px;font-weight:450;letter-spacing:-1px;margin:10px 0}.portal-form .login-card>p{font-size:13px;line-height:1.8;color:#6e8593}.portal-form .login-card>p>span{display:block;font-size:12px}.portal-form .login-icon{background:#e7f0f4;color:#1a6e85}.portal-form .demo-identity{background:#edf3f6;border:1px solid #dce7ed;margin:30px 0 18px}.portal-form .login-disclaimer p{font-size:11px;line-height:1.8}.portal-form .login-disclaimer p span{display:block;margin-top:5px}.portal-form .login-copyright{font-size:10px;color:#8195a0}.portal-form .switch-role{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:12px}.portal-form .switch-role a{color:#23768b}.portal-form .auth-notice{background:#eaf2f6}.portal-form .form-hint{font-size:10px}@media(min-width:1600px){.lab-hero-scene{padding-top:75px;min-height:800px}.lab-hero-grid{gap:120px}.lab-hero h1{font-size:88px}}@media(max-width:1150px){.lab-wrap{width:calc(100% - 64px)}.lab-header{gap:18px;padding-inline:32px}.lab-nav{gap:18px}.lab-header-actions{gap:15px}.lab-teacher-link{display:none}.lab-hero-grid{gap:32px}.score-stage{padding-inline:10px}.score-paper{padding:24px}.lab-hero h1{font-size:65px}.lab-founder{gap:45px}.lab-space-grid{gap:25px}.portal-scene{padding:35px}.lab-skills>a{padding-inline:18px}.lab-skills h3{font-size:21px}}@media(max-width:800px){.lab-header{height:84px;padding-inline:24px}.lab-header .brand-lockup>span{font-size:21px}.lab-header .brand>svg{width:34px}.lab-header .brand-lockup small{font-size:8px}.lab-menu{display:flex}.lab-header-actions{gap:8px}.lab-header-actions .compact{padding:9px 12px}.lab-header-actions .compact span,.lab-nav{display:none}.lab-nav.open{display:flex;position:absolute;top:84px;left:0;right:0;background:#0b2b44;padding:25px;flex-wrap:wrap;justify-content:space-around;border-top:1px solid #ffffff22}.lab-wrap{width:calc(100% - 48px)}.lab-hero-grid{grid-template-columns:1fr;gap:15px;max-width:610px}.lab-hero h1{font-size:68px;letter-spacing:-3px}.lab-hero-copy{padding-top:5px}.lab-hero-scene{padding-top:32px}.score-stage{max-width:480px;width:100%;margin:20px auto 0;padding-inline:30px}.score-paper{transform:rotate(-3deg)}.score-orbit{inset:0}.score-reveal-control{margin-top:32px}.lab-hero-foot{margin-top:35px;letter-spacing:.8px}.lab-hero-foot>span>span{display:none}.lab-section-heading{align-items:flex-start;flex-direction:column;gap:24px;margin-bottom:35px}.lab-space{padding-top:64px;padding-bottom:50px}.lab-space-main{height:390px}.lab-space-grid{grid-template-columns:1fr 1fr;gap:20px}.lab-space-side>p{font-size:25px;padding-top:0}.lab-space-side>.brand-parallax{height:220px}.lab-photo-caption{flex-direction:column;gap:4px;font-size:8px}.lab-space-services{gap:20px;font-size:13px}.lab-space-services small{display:block;margin:5px 0 0;font-size:10px}.lab-learning{padding:60px 0}.lab-skills{grid-template-columns:repeat(2,1fr)}.lab-skills>a{border:1px solid #cddde4;margin:-1px 0 0 -1px}.lab-platform-features{gap:25px}.lab-founder{padding-block:70px;gap:35px;grid-template-columns:1fr 1fr}.lab-founder-photo{height:450px}.lab-founder-details{grid-template-columns:1fr;gap:18px}.lab-founder-intro{font-size:20px}.lab-faq{gap:35px;grid-template-columns:1fr;padding-bottom:65px}.lab-visit{padding-block:60px}.lab-visit-bottom{align-items:flex-start}.lab-footer{grid-template-columns:1fr 1fr}.lab-footer>p{display:none}.portal-page{grid-template-columns:1fr}.portal-scene{min-height:470px;padding:28px}.portal-scene-copy{margin-top:35px;max-width:70%}.portal-scene-copy h1{font-size:48px}.portal-room{position:absolute;width:29%;bottom:65px;right:25px;margin:0}.portal-scene-foot{margin-top:40px}.portal-form{padding:30px 8%;min-height:650px}}@media(max-width:480px){.lab-header{padding-inline:16px;gap:8px}.lab-header .brand{gap:5px}.lab-header .brand-lockup>span{font-size:18px}.lab-header .brand>svg{width:30px}.lab-header .brand-lockup small{letter-spacing:3px;font-size:8px}.lab-header .compact{min-height:36px;font-size:11px;gap:4px}.lab-header .compact svg{width:14px}.lab-menu{padding:5px}.lab-wrap{width:calc(100% - 40px)}.lab-hero h1{font-size:57px}.lab-hero-zh{font-size:15px;letter-spacing:2px}.lab-hero-description{font-size:14px}.lab-hero-description span{max-width:285px;line-height:1.8}.lab-kicker{font-size:8px;letter-spacing:1.4px}.lab-hero .lab-btn{font-size:13px;padding:16px 20px}.score-stage{padding-inline:18px}.score-paper{padding:23px}.score-paper-title{font-size:25px}.score-result>strong{font-size:85px}.score-skills{gap:7px;font-size:7px}.score-cover{font-size:11px;padding:20px}.score-cover svg{width:26px}.lab-section-heading h2{font-size:37px}.lab-space-grid{grid-template-columns:1fr}.lab-space-main{height:375px}.lab-space-side>p{font-size:28px;margin-top:16px}.lab-space-side>.brand-parallax{height:235px}.lab-space-side .lab-photo-caption{flex-direction:row}.lab-space-services{font-size:11px;gap:12px}.lab-space-services small{font-size:9px}.lab-skills h3{font-size:20px}.lab-skills h3 small{display:block;margin:3px 0}.lab-skills p{font-size:12px}.lab-skills>a{padding:23px 15px 50px}.lab-platform-features{grid-template-columns:1fr;gap:28px}.lab-platform-features>div{border-bottom:1px solid #d6e1e8;padding-bottom:22px}.lab-platform-features h3 span{display:inline;margin-left:8px}.lab-founder{grid-template-columns:1fr}.lab-founder-photo{height:400px}.lab-founder-copy h2{font-size:42px}.lab-founder-details{grid-template-columns:1fr 1.2fr;gap:18px}.lab-founder-details p{font-size:11px}.lab-faq h2{font-size:36px}.lab-visit h2{font-size:47px;letter-spacing:-2px}.lab-visit-bottom{flex-direction:column;gap:30px}.lab-footer{gap:24px 12px}.lab-footer .brand-lockup>span{font-size:18px}.lab-footer .brand>svg{width:29px}.lab-footer .brand-lockup small{font-size:8px;letter-spacing:3px}.lab-footer>div{font-size:9px}.portal-scene{min-height:470px}.portal-scene-copy{max-width:100%}.portal-scene-copy h1{font-size:44px}.portal-room{width:28%;right:25px;bottom:58px;opacity:.8}.portal-scene-copy p{max-width:220px;font-size:12px}.portal-scene-foot{font-size:8px}.portal-form .login-card h2{font-size:31px}.portal-form{padding-inline:24px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.parallax-image{transform:scale(1.05);will-change:auto}.portal-room,.score-stage{transform:none}.lab-btn,.lab-skills>a{transition:none}}.lab-site .brand em{font-family:var(--font);font-weight:750}.sidebar{overflow-y:auto;overscroll-behavior:contain}.sidebar nav{flex-shrink:0}.sidebar .nav-item{padding-block:8px;color:#668092}.sidebar .nav-item.active{color:#123e59}.sidebar-bottom{flex-shrink:0}.welcome-banner{border-color:#dbe7ed}.banner-art .art-step{background:#94bacb;border-color:#719db2}.banner-art .art-arrow{color:#277b95}.banner-progress{border-color:#cddfe9}.goal-note{border-color:#dbe7ed}.app-shell .segmented .active{background:#fff;color:#165776}.app-shell .book-card{background:#f5f9fb;border-color:#dce7ee}.app-shell .book-card:hover{background:#eaf3f7;border-color:#7ea7bb}.app-shell .book-card svg{color:#357c95}.app-shell .book-card strong{color:#163f5a}.app-shell .course-search-field:focus-within{border-color:#398caa;box-shadow:0 0 0 3px #398caa15}.app-shell .course-search-field{background:#fff}.app-shell .practice-note{background:#eaf2f7;color:#305b77}.app-shell .target-score-options button.selected{background:#e5f0f6;border-color:#387895}.app-shell .stat-card{min-width:0}.app-shell .nav-label{color:#7c93a2}.app-shell .status-chip{background:#e6f2f2;color:#267783}@media(max-width:1050px) and (min-width:761px){.sidebar .brand-lockup>span{font-size:16px}.sidebar .brand>svg{width:28px}.sidebar .brand-lockup small{letter-spacing:2px}.sidebar .nav-item{gap:9px;padding-inline:10px}.sidebar .nav-item>span{font-size:11px}}.banner-art .art-step{box-shadow:inset -13px 0 #638ea7}.banner-progress strong{color:#244e6b}.banner-progress>span{color:#658394}.demo-badge{background:#eff4f7;color:#688291;border-color:#dde6ec}.goal-note strong{color:#214e68}.lab-site img{content-visibility:auto}.lab-founder-photo img,.lab-hero img{content-visibility:visible}.scroll-reveal{opacity:1;transform:translateY(0) scale(1);transition:opacity .65s ease,transform .8s cubic-bezier(.2,.8,.2,1)}.scroll-reveal.reveal-pending{opacity:0;transform:translateY(38px) scale(.96)}.lab-skills>.scroll-reveal>a{position:relative;display:block;height:100%;padding:29px 24px 59px;border-right:1px solid #cddde4;transition:background .25s,box-shadow .25s,transform .25s}.lab-skills>.scroll-reveal:first-child>a{border-left:1px solid #cddde4}.lab-skills>.scroll-reveal>a>div{display:flex;justify-content:space-between;color:#357185;font-size:10px}.lab-skills>.scroll-reveal>a:focus-visible,.lab-skills>.scroll-reveal>a:hover{background:#ffffff98;-webkit-backdrop-filter:blur(18px) saturate(1.4);backdrop-filter:blur(18px) saturate(1.4);box-shadow:inset 0 1px 0 #fff,0 15px 40px #183e5314;transform:translateY(-6px);z-index:1}.lab-skills>.scroll-reveal>a:active{transform:translateY(-1px) scale(.98);background:#ffffffbf}.lab-platform-features>.scroll-reveal{border-radius:16px;padding:22px;margin:-22px;background:#ffffff35;border:1px solid #ffffff88}.lab-campus-address,.lab-platform-features>.scroll-reveal{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.lab-campus-address{display:flex;align-items:center;gap:13px;margin-top:30px;padding:18px 22px;border:1px solid #d7e5ea;background:#edf5f7a6;border-radius:12px;width:fit-content;font-size:13px;color:#1c5e76}.lab-campus-address small{display:block;font-size:11px;color:#658392;margin-top:3px}.founder-3d-scene{perspective:1100px;--tilt-x:0deg;--tilt-y:0deg;min-width:0;touch-action:pan-y;outline-offset:8px}.founder-3d-card,.founder-3d-scene{position:relative;border-radius:24px}.founder-3d-card{height:560px;transform-style:preserve-3d;transform:rotateX(var(--tilt-x)) rotateY(var(--tilt-y));transition:transform .2s ease-out;background:linear-gradient(145deg,#17445b,#061e34);box-shadow:0 24px 65px #072c3e26}.founder-halo{position:absolute;inset:13% 6% 8%;border-radius:50%;background:radial-gradient(ellipse,#3e9caa66,transparent 68%);transform:translateZ(12px)}.founder-depth-word{position:absolute;left:7%;top:12%;font-size:clamp(36px,4.6vw,68px);letter-spacing:-3px;font-weight:650;color:#d0ece622;transform:translateZ(8px)}.founder-3d-card>img{position:absolute;width:110%;max-width:none;height:101%;bottom:0;left:-5%;object-fit:contain;object-position:center bottom;transform:translateZ(45px);filter:drop-shadow(0 15px 18px #0003)}.founder-glass-label{position:absolute;left:24px;right:24px;bottom:35px;transform:translateZ(75px);padding:19px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;border:1px solid #ffffff52;background:linear-gradient(135deg,#ffffff2f,#cdeef011);-webkit-backdrop-filter:blur(22px) saturate(1.4);backdrop-filter:blur(22px) saturate(1.4);border-radius:14px;color:white;box-shadow:inset 0 1px 0 #ffffff42,0 10px 25px #0001}.founder-glass-label>span{font-size:23px;font-family:Georgia,serif}.founder-glass-label small{font-size:8px;line-height:1.9;color:#d7e9ed;letter-spacing:.5px}.founder-turn-hint{position:absolute;bottom:12px;left:0;right:0;text-align:center;font-size:8px;color:#92b5c6;letter-spacing:.8px;transform:translateZ(30px)}.lab-header{background:#071e35ed;-webkit-backdrop-filter:blur(24px) saturate(1.25);backdrop-filter:blur(24px) saturate(1.25)}.lab-btn{position:relative;overflow:hidden}.lab-btn:active{transform:scale(.975);box-shadow:inset 0 0 25px #fff7}.lab-btn:after{content:"";position:absolute;inset:-100% auto -100% -100%;width:50%;background:linear-gradient(90deg,transparent,#fff6,transparent);transform:skewX(-20deg);transition:left .6s;pointer-events:none}.lab-btn:hover:after{left:160%}.dialog-backdrop{-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}.daily-quote{margin:15px 0 0!important;padding:0 0 0 14px;border-left:2px solid #71b3c0;max-width:700px}.daily-quote blockquote{margin:0;font-family:Georgia,Times New Roman,serif;font-size:18px;font-style:italic;color:#234c66;line-height:1.5}.daily-quote figcaption{font-size:10px;color:#6a8696;margin-top:7px}.daily-quote .quote-translation{font-family:var(--font);font-size:11px;color:#718493;margin-top:5px}.daily-quote a:hover{text-decoration:underline}.daily-quote .quote-day{font-size:8px;letter-spacing:1.3px;color:#638b99;margin-bottom:6px;display:block}.dashboard-title>div{min-width:0}.dashboard-title{align-items:flex-start}.app-shell .modal-overlay{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}@media(max-width:800px){.founder-3d-card{height:460px}.founder-glass-label{left:12px;right:12px;gap:10px;padding:14px;flex-wrap:wrap}.lab-skills>.scroll-reveal>a{border:1px solid #cddde4;margin:-1px 0 0 -1px}.lab-platform-features>.scroll-reveal{margin:0;padding:18px}.lab-platform-features{gap:16px}.daily-quote blockquote{font-size:16px}}@media(max-width:480px){.founder-3d-card{height:460px}.founder-glass-label{left:22px;right:22px}.lab-skills>.scroll-reveal>a{padding:23px 15px 50px}.lab-campus-address{padding:15px;max-width:100%;font-size:12px}.lab-campus-address small{font-size:10px}.lab-founder{overflow:visible}.daily-quote blockquote{font-size:15px}}@media(prefers-reduced-motion:reduce){.scroll-reveal,.scroll-reveal.reveal-pending{opacity:1;transform:none;transition:none}.founder-3d-card{transform:none;transition:none}.lab-btn:after{display:none}.lab-skills>.scroll-reveal>a{transition:none}.lab-skills>.scroll-reveal>a:hover{transform:none}}.student-login-form{display:flex;flex-direction:column;gap:10px;margin-top:24px}.student-login-form>label{font-size:12px;margin-top:8px}.student-auth-tabs{display:flex;gap:4px;background:#e8f0f4;border:1px solid #dce7ed;border-radius:12px;padding:4px;margin-bottom:8px}.student-auth-tabs button{flex:1 1;padding:10px 7px;border-radius:8px;font-size:12px;color:#638294}.student-auth-tabs button.active{background:#fff;color:#12405a;box-shadow:0 3px 10px #143e4f12}.student-login-form .password-field{margin:0}.student-login-form .form-grid{margin-top:8px;gap:12px}.student-login-form .form-grid label{font-size:11px;display:flex;flex-direction:column;gap:7px}.student-login-form .button.full{margin-top:12px}.student-login-form .form-hint{line-height:1.8}.student-import-check{display:flex;align-items:flex-start;gap:10px;padding:12px;background:#edf5f7;border-radius:8px;color:#5f7e8c;font-size:11px!important}.student-import-check input{margin-top:4px;accent-color:#246e88}.portal-form .login-card{max-width:460px}.portal-form .login-card:has(.student-login-form){padding-block:10px}.sidebar-profile>button{margin-left:auto;padding:5px}.dialog-backdrop,.modal-backdrop{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.dialog-panel,.modal-panel{background:#f9fcffed;border:1px solid #ffffffb3;box-shadow:inset 0 1px 0 #fff,0 24px 90px #092b4933;-webkit-backdrop-filter:blur(26px) saturate(1.3);backdrop-filter:blur(26px) saturate(1.3);animation:glass-open .26s cubic-bezier(.2,.8,.2,1)}@keyframes glass-open{0%{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.dialog-panel,.modal-panel{animation:none}}.modal-backdrop .modal{background:linear-gradient(145deg,#ffffffef,#edf7fbe8);border:1px solid #ffffffb3;box-shadow:inset 0 1px 0 #fff,0 24px 90px #092b4933;-webkit-backdrop-filter:blur(26px) saturate(1.3);backdrop-filter:blur(26px) saturate(1.3);animation:glass-open .26s cubic-bezier(.2,.8,.2,1)}@media(prefers-reduced-motion:reduce){.modal-backdrop .modal{animation:none}}.app-shell{background:radial-gradient(ellipse at 85% 6%,#84c9d126,transparent 46%),radial-gradient(ellipse at 20% 75%,#97b5da20,transparent 48%),#f0f5f8}.app-shell .panel,.app-shell .stat-card,.app-shell .subject-card,.app-shell .welcome-banner{background:linear-gradient(135deg,#ffffffef,#f5fafbcc);border:1px solid #ffffff;box-shadow:inset 0 1px 0 #fff,0 5px 22px #133c5510,0 0 0 1px #1b789110;-webkit-backdrop-filter:blur(16px) saturate(1.2);backdrop-filter:blur(16px) saturate(1.2)}.app-shell .book-card,.app-shell .vocabulary-set{background:linear-gradient(135deg,#ffffffc9,#e9f5f8b8);border:1px solid #b7dce48c;box-shadow:inset 0 1px 0 #fff;transition:transform .22s,box-shadow .22s,border-color .22s}.app-shell .book-card:hover,.app-shell .vocabulary-set:hover{transform:translateY(-3px);box-shadow:0 10px 24px #0c506716;border-color:#58aabb}.app-shell .nav-item.active{background:linear-gradient(110deg,#d9eff3,#eaf4f8);box-shadow:inset 0 1px 0 #fff,0 3px 12px #17697b0c}.learning-reveal{animation:learning-arrive .45s ease-out both}@keyframes learning-arrive{0%{opacity:.2;transform:translateY(10px)}to{opacity:1;transform:none}}.completion-fireworks{position:fixed;z-index:120;pointer-events:none;left:50%;top:28%;width:280px;height:150px;transform:translateX(-50%)}.tiny-burst{position:absolute;left:50%;top:35%;width:1px;height:1px}.burst-0{left:18%;top:55%}.burst-2{left:82%;top:65%}.tiny-burst i{position:absolute;font-style:normal;color:var(--spark);font-size:17px;opacity:0;animation:tiny-firework 1.65s var(--delay) ease-out both}@keyframes tiny-firework{0%{opacity:0;transform:translateY(16px) scale(.2)}15%{opacity:1}75%{opacity:.85}to{opacity:0;transform:translate(var(--x),calc(var(--y) + 28px)) scale(.4)}}@media(prefers-reduced-motion:reduce){.learning-reveal,.tiny-burst i{animation:none}.completion-fireworks{display:none}.app-shell .book-card:hover,.app-shell .vocabulary-set:hover{transform:none}}.speaking-workspace{min-height:100vh;background:linear-gradient(135deg,#f1f7fa,#eaf5f7);color:#16384f;padding:28px clamp(20px,5vw,80px)}.speaking-workspace>header{display:flex;justify-content:space-between;gap:16px;font-size:14px;margin-bottom:48px}.speaking-heading h1{font-size:clamp(26px,3vw,40px);margin:14px 0}.speaking-heading p{font-size:14px;line-height:1.9;color:#597788}.speaking-part-tabs{display:flex;gap:12px;margin:30px 0}.speaking-part-tabs button{padding:16px 22px;border-radius:12px;border:1px solid #c3dfe5;background:#fff9;color:#1c5165;text-align:left}.speaking-part-tabs button[aria-pressed=true]{background:#12546d;color:white;border-color:#12546d}.speaking-part-tabs small{display:block;margin-top:6px;font-size:11px}.speaking-practice-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,1fr);gap:24px;align-items:start}.speaking-practice-grid .panel{background:#ffffffd9;border:1px solid #fff;box-shadow:0 8px 30px #1c5b7210;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);padding:30px}.speaking-prompt{font-size:17px;line-height:1.95}.speaking-record-panel h2{font-size:18px}.speaking-record-panel p{font-size:13px;line-height:1.8;color:#547184}.speaking-timer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:26px 0}.speaking-timer strong{font-size:35px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.speaking-record-panel .audio-answer{margin-bottom:20px}@media(max-width:800px){.speaking-practice-grid{grid-template-columns:1fr}.speaking-part-tabs{flex-wrap:wrap}.speaking-part-tabs button{flex:1 1;min-width:130px}.speaking-workspace>header{margin-bottom:28px}}