:root{color-scheme:light;--paper:#f8f7f4;--ink:#202b32;--muted:#59676c;--coral:#c94236;--line:#dedfda;--teal:#2d505b;--white:#fff;--radius:28px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:1rem;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--coral);outline-offset:5px}img{display:block;max-width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h1,h2,h3{line-height:1.3}a,button{touch-action:manipulation}.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}.skip-link{position:fixed;z-index:5;top:1rem;left:1rem;padding:12px 18px;background:var(--ink);color:white;transform:translateY(-200%);border-radius:12px}.skip-link:focus{transform:translateY(0)}
.site-header{min-height:112px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:12px;font-size:1.12rem;line-height:1.3;font-weight:740;letter-spacing:-.035em;flex-shrink:0}.brand img{border-radius:24%;flex-shrink:0}.site-header nav{display:flex;align-items:center;gap:30px;font-size:.9rem}.site-header nav a{padding-block:12px}.site-header nav a:hover,.site-footer a:hover,.text-link:hover{color:var(--coral)}.site-header .nav-help{padding:10px 17px;border:1px solid #ccceca;border-radius:100px;display:flex;gap:20px}.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.13em;line-height:1.6;color:var(--coral)}.eyebrow-line{display:inline-block;width:24px;height:2px;background:currentColor;margin:0 8px 4px 0}
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:70px;padding-top:68px;padding-bottom:90px;align-items:center}.hero-copy h1{font-size:clamp(3.5rem,6.6vw,6rem);letter-spacing:-.06em;line-height:1.18;font-weight:800;margin:26px 0 22px}.hero-copy h1 em{font-style:normal;color:var(--coral)}.hero-english{font-family:Georgia,"Times New Roman",serif;font-size:clamp(1.45rem,2.4vw,2rem);font-style:italic;line-height:1.5;letter-spacing:-.03em}.hero-description{color:var(--muted);margin-top:24px;font-size:1.04rem;line-height:1.95}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:22px;margin-top:34px}.button{display:inline-flex;justify-content:center;align-items:center;gap:26px;min-height:54px;padding:13px 23px;border:1px solid transparent;border-radius:100px;font-weight:650;line-height:1.5;font-size:.94rem;cursor:pointer;transition:background-color .18s,transform .18s}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--coral);color:var(--white)}.button-primary:hover{background:#ac352c}.button-dark{background:var(--ink);color:var(--white)}.button-dark:hover{background:var(--teal)}.text-link{font-size:.94rem;border-bottom:1px solid #a5acab;padding:8px 0;display:inline-flex;gap:12px}.availability{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:.8rem;color:var(--muted);margin-top:24px}.availability-label{font-size:.75rem;font-weight:700;letter-spacing:.09em;border:1px solid var(--line);border-radius:5px;padding:3px 8px}.hero-note{margin-top:48px;display:flex;align-items:center;gap:20px;font-size:.88rem;color:var(--muted)}.note-number{font-family:Georgia,serif;font-size:1.15rem;font-style:italic;padding-right:20px;border-right:1px solid #c6ccc9}.hero-note strong{font-weight:500;color:var(--ink)}
.app-preview{min-width:0;position:relative;background:#dce6e4;border-radius:40px;padding:26px 42px 22px;align-self:center}.preview-heading{display:flex;justify-content:space-between;gap:12px;color:#36525b;font-size:.78rem;margin-bottom:22px}.preview-heading span:last-child{font-size:.75rem;letter-spacing:.13em;align-self:center}.app-screen{width:100%;max-width:290px;margin-inline:auto;border-radius:30px;box-shadow:0 20px 45px -20px #23394080;border:1px solid #ffffff90}.app-preview figcaption{display:flex;justify-content:center;align-items:center;gap:8px;font-size:.75rem;color:#47606a;margin-top:23px}.caption-line{height:1px;width:18px;background:currentColor}
.practice-section{padding:92px 0 100px;background:#edf0ed;border-top:1px solid #e2e6e0;border-bottom:1px solid #e2e6e0}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:40px}h2{font-size:clamp(2rem,3.4vw,3.1rem);font-weight:750;letter-spacing:-.04em}.section-heading h2,.your-pace h2{margin-top:16px}.section-heading>p{color:var(--muted);padding-bottom:4px}.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.practice-card{padding:34px;border-radius:var(--radius);display:flex;flex-direction:column;min-width:0;position:relative;background:white}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.step-number{font-size:1rem;line-height:1;letter-spacing:-.03em;border:1px solid currentColor;padding:9px 8px;border-radius:100%;opacity:.7}.skill-label{font-size:.8rem;letter-spacing:.14em;font-weight:600}.practice-card h3{font-size:1.85rem;font-weight:700;letter-spacing:-.03em;margin-bottom:16px}.practice-card>p{font-size:1rem;line-height:1.85;max-width:31em;color:var(--muted)}.listen-card{background:var(--teal);color:white}.listen-card>p{color:#dce8e8}.retell-card{background:#f8ded7}.word-card{background:#fff}.grammar-card{background:#e8e4f1}.example-label{display:block;font-size:.78rem;letter-spacing:.025em;font-weight:500}.listen-example,.retell-example,.word-example,.grammar-example{margin-top:30px;border-top:1px solid #23383f26;padding-top:22px;min-height:164px}.listen-example{border-color:#ffffff38}.listen-example>p{font-family:Georgia,serif;font-size:1.8rem;line-height:1.6;margin:12px 0 18px}.listen-example mark{background:transparent;color:#ffd885;border-bottom:2px solid #ffd885;padding-bottom:4px}.listen-example .example-label{color:#c3d7d9}.audio-line{display:flex;align-items:center;gap:14px;color:#f5d288;font-size:.8rem}.audio-track{display:block;flex:1;height:3px;background:linear-gradient(to right,#f5d288 35%,#68858c 35%);border-radius:8px}.retell-example>p{font-family:Georgia,serif;font-size:1.8rem;line-height:1.6;font-style:italic;margin:12px 0 15px}.record-label{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;color:#8d3d36}.word-example>div{display:flex;align-items:baseline;flex-wrap:wrap;gap:16px}.word-example strong{font-family:Georgia,serif;font-size:2.35rem;font-weight:500;line-height:1.4}.word-example>div span{color:var(--muted);font-size:.9rem}.word-example p{padding:14px 0 17px;font-family:Georgia,serif;font-size:1.2rem;font-style:italic}.word-example .example-label{color:var(--muted)}.grammar-example>p{font-family:Georgia,serif;font-size:1.8rem;line-height:1.6;margin:10px 0 12px}.grammar-example>p span{color:#574379;border-bottom:2px solid #a296bf}.grammar-tag{display:inline-block;font-size:.78rem;padding:3px 10px;background:#d9d2e9;color:#493867;border-radius:6px}
.your-pace{display:grid;grid-template-columns:1fr 1.15fr;gap:100px;padding-block:100px}.pace-details{display:grid;gap:28px}.pace-details>div{display:flex;gap:24px;padding-bottom:27px;border-bottom:1px solid var(--line)}.detail-index{font-family:Georgia,serif;font-style:italic;white-space:nowrap;color:var(--coral);font-size:1.02rem;padding-top:4px}.pace-details h3{font-size:1.15rem;margin-bottom:10px;font-weight:650}.pace-details p{color:var(--muted);font-size:1rem;line-height:1.85}.beta-section{background:#eee4dc;border-radius:var(--radius);padding:42px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;margin-bottom:76px}.beta-section>img{border-radius:24%;align-self:start}.beta-section h2{font-size:1.8rem;margin-top:12px}.beta-section p:not(.eyebrow){font-size:.9rem;color:#625b56;line-height:1.9;margin-top:16px}.beta-section .button{white-space:nowrap}.site-footer{display:grid;grid-template-columns:1fr auto;align-items:center;gap:30px;padding-block:36px;border-top:1px solid var(--line)}.site-footer .brand{font-size:1rem}.site-footer>div>p{font-size:.84rem;color:var(--muted);margin-top:12px}.site-footer nav{display:flex;gap:26px;font-size:.85rem}.footer-note{grid-column:1/-1;font-size:.75rem;color:var(--muted);border-top:1px solid var(--line);padding-top:22px}
.document{display:grid;grid-template-columns:230px minmax(0,1fr);gap:64px;padding-top:64px;padding-bottom:80px}.document-aside{display:flex;flex-direction:column;align-items:flex-start;gap:18px;font-size:.9rem}.back-link{margin-bottom:32px;color:var(--muted)}.document-aside>p:not(.eyebrow){font-size:1.6rem;font-weight:650;line-height:1.5;margin-bottom:22px}.document-aside a:hover{color:var(--coral)}.document-content{min-width:0;background:white;border:1px solid #e5e5e0;border-radius:var(--radius);padding:44px}.document-content h1{font-size:clamp(1.8rem,3vw,2.6rem);letter-spacing:-.03em;line-height:1.35;margin-bottom:32px;overflow-wrap:anywhere}.document-prose{font-size:1.04rem;color:#425158;line-height:1.9;overflow-wrap:anywhere}.document-prose p+p{margin-top:24px}.support-form{border-top:1px solid var(--line);margin-top:36px;padding-top:32px}.support-form h2{font-size:1.5rem}.form-note{font-size:.85rem;color:var(--muted);margin-top:12px}.support-form label{display:block;font-weight:600;font-size:.9rem;margin:25px 0 8px}.support-form input,.support-form select,.support-form textarea{display:block;width:100%;border:1px solid #b9c1c0;border-radius:12px;padding:13px;background:var(--paper);color:var(--ink);line-height:1.5;min-height:48px}.support-form textarea{min-height:180px;resize:vertical}.field-help{font-size:.8rem;color:var(--muted);margin-top:8px}.support-form button{margin-top:24px}
@media(min-width:1500px){.hero{gap:110px}.hero-copy h1{font-size:6.4rem}.app-screen{max-width:310px}}
@media(max-width:1050px){.wrap{width:calc(100% - 64px)}.hero{gap:34px;padding-block:50px 64px}.app-preview{padding:22px 24px}.hero-note{margin-top:32px}.hero-description{font-size:1rem}.desktop-break{display:none}.hero-actions{gap:16px}.your-pace{gap:50px}.beta-section{grid-template-columns:auto 1fr;padding:32px}.beta-section>.button{grid-column:2;justify-self:start}.document{grid-template-columns:170px minmax(0,1fr);gap:30px}.document-content{padding:30px}.practice-card{padding:28px}}
@media(max-width:760px){.wrap{width:calc(100% - 40px)}.site-header{min-height:84px;gap:14px;flex-wrap:wrap;padding-block:17px}.brand{font-size:1rem;gap:9px}.brand img{width:36px;height:36px}.site-header nav{gap:18px;font-size:.86rem}.site-header .nav-help{padding:8px 0;border:0;gap:8px}.hero{grid-template-columns:1fr;padding-top:42px;gap:38px}.hero-copy h1{font-size:clamp(3.6rem,12vw,5.8rem);margin:24px 0 18px}.hero-english{font-size:1.55rem}.hero-actions{margin-top:28px;gap:20px}.hero-note{display:none}.hero-description{margin-top:18px}.app-preview{max-width:430px;width:100%;justify-self:center;padding:24px 36px;border-radius:32px}.app-screen{max-width:260px;border-radius:27px}.preview-heading{font-size:.75rem}.hero .eyebrow{font-size:.75rem}.practice-section{padding:58px 0}.section-heading{display:block;margin-bottom:28px}.section-heading>p{margin-top:22px}.practice-grid{grid-template-columns:1fr;gap:16px}.practice-card{padding:28px}.practice-card h3{font-size:1.75rem}.your-pace{grid-template-columns:1fr;gap:34px;padding-block:58px}.pace-details{gap:23px}.beta-section{grid-template-columns:1fr;padding:28px;gap:22px;margin-bottom:44px}.beta-section>img{width:60px;height:60px}.beta-section>.button{grid-column:auto;justify-self:start}.beta-section h2{font-size:1.75rem}.beta-section br{display:none}.site-footer{grid-template-columns:1fr;gap:22px}.site-footer nav{flex-wrap:wrap;gap:18px}.document{grid-template-columns:1fr;padding-top:30px;gap:24px;padding-bottom:44px}.document-aside{display:block}.document-aside>*:not(.back-link){display:none}.document-content{padding:26px 22px}.document-content h1{font-size:1.85rem}.footer-note{font-size:.75rem}.support-form .button{width:100%}}
@media(max-width:430px){.site-header nav{width:100%;justify-content:space-between}.site-header{row-gap:8px}.app-preview{padding-inline:24px}.hero-actions{align-items:flex-start;flex-direction:column;gap:10px}.hero-copy h1{font-size:3.7rem}.availability{gap:8px}.eyebrow{font-size:.75rem;letter-spacing:.1em}.hero .eyebrow-line{display:none}.practice-card{padding:25px}.preview-heading span:last-child{font-size:.75rem}}
.brand{min-width:0;max-width:100%;flex-shrink:1}.brand span{overflow-wrap:anywhere}.site-header nav{flex-wrap:wrap}.button{max-width:100%}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.button:hover{transform:none}}