/* Website-only layout. App-owned artwork and cover styles are copied by sync-assets. */
:root{--ink:#202846;--muted:#667086;--purple:#7359e8;--purple-dark:#5840c7;--line:#e8e9ef;--mint:#eaf5ef;--radius:28px;--ease:cubic-bezier(.22,1,.36,1);font-family:Inter,'Segoe UI',Arial,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0}button,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button{border:0}button:disabled{cursor:default}button:focus-visible,a:focus-visible{outline:3px solid #7459e8;outline-offset:5px}img{display:block;max-width:100%;object-fit:contain}h1,h2,h3,p{margin:0}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.symbol-bank{position:absolute;width:0;height:0;overflow:hidden}.wrap{width:min(1200px,calc(100% - 96px));margin-inline:auto}.section-space{margin-top:110px}.skip{position:fixed;top:-100px;z-index:99;padding:16px;background:white}.skip:focus{top:10px}.site-header{height:94px;position:sticky;top:0;z-index:30;background:#ffffffed;backdrop-filter:blur(16px);border-bottom:1px solid #f1f0f7}.nav-wrap{max-width:1320px;margin:auto;height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 44px;gap:30px}.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:750;letter-spacing:-.5px;flex-shrink:0}.brand img{width:43px;height:43px}.brand-cn{display:block;font-weight:400;font-size:10px;letter-spacing:2.3px;color:#838795;margin-top:4px}nav{display:flex;align-items:center;gap:33px;font-size:14px;font-weight:550}nav>a:not(.button){padding:16px 0}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;background:var(--purple);border-radius:14px;color:white;font-size:15px;font-weight:650;padding:17px 24px;min-height:54px;box-shadow:0 8px 20px #7259e81b;transition:transform .22s var(--ease),background .2s}.button:hover{background:var(--purple-dark);transform:translateY(-2px)}.nav-download{padding:13px 20px;min-height:46px;font-size:13px;border-radius:12px}.nav-download svg{width:17px}.menu-toggle{display:none!important}.hero{display:grid;grid-template-columns:1.04fr 1fr;gap:40px;align-items:center;padding-top:42px;padding-bottom:22px;min-height:700px}.eyebrow{display:block;color:var(--purple);font-size:11px;font-weight:750;letter-spacing:1.7px;line-height:1.6}.eyebrow i,.green-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#7caf96;margin-right:7px}.hero h1{font-size:clamp(40px,4.05vw,58px);line-height:1.11;letter-spacing:-2.6px;font-weight:750;margin:24px 0}.hero h1 span{color:var(--purple)}.hero-copy>p{max-width:450px;font-size:17px;line-height:1.8;color:var(--muted)}.hero-actions{display:flex;gap:26px;align-items:center;margin-top:30px}.text-link{display:inline-flex;align-items:center;gap:13px;font-size:14px;font-weight:650}.text-link:hover{color:var(--purple)}.hero-foot{margin-top:35px;display:flex;flex-direction:column;gap:11px;color:#6f7788;font-size:12px}.hero-foot span{display:flex;gap:8px;align-items:center}.hero-foot svg{width:16px;height:16px;color:#578774}.hero-visual{position:relative;height:600px;display:grid;place-items:center;isolation:isolate}.hero-orbit{position:absolute;inset:35px -15px 26px 5px;border-radius:46% 46% 34% 45%;background:radial-gradient(ellipse at 60% 40%,#e0dcff,#f7f5ff 68%,#fbfaff);z-index:-1}.visual-caption{position:absolute;right:0;top:21px;transform:rotate(5deg);font-size:12px;line-height:1.6;color:#9b93b3;font-style:italic}.phone{width:280px;height:552px;border:7px solid #2e3142;border-radius:41px;box-shadow:0 26px 44px #4c3b6929,0 0 0 2px #c8c8d2,inset 0 0 0 1px white;background:#fbfbff;position:relative;transform:rotate(-3deg);overflow:hidden}.phone-camera{position:absolute;left:50%;top:9px;transform:translateX(-50%);width:70px;height:15px;border-radius:15px;background:#242736;z-index:2}.phone-status{display:flex;justify-content:space-between;padding:11px 19px 9px;color:white;background:var(--purple);font-size:9px}.phone-header{background:linear-gradient(120deg,#8469f6,#6656e6);color:white;padding:20px 16px 17px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;border-radius:0 0 25px 25px}.phone-header strong{display:block;font-size:26px;line-height:1.2}.phone-header span{font-size:9px;opacity:.8}.phone-header>img{padding:5px;border-radius:50%;background:#eee8fd}.phone-search{background:white;color:#8a8da4;width:100%;display:flex;align-items:center;gap:8px;padding:11px;border-radius:25px;font-size:10px}.phone-search svg{width:15px;height:15px}.phone-body{padding:18px 13px}.mini-heading{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:12px}.mini-heading span{color:#8a8ba3;font-size:10px}.hero-notes{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;overscroll-behavior-x:contain;min-height:161px}.hero-notes::-webkit-scrollbar{display:none}.word-note{position:relative;flex:0 0 calc(50% - 5px);padding:13px 11px 8px;background:#fff5d8;border-radius:15px 15px 5px 15px;scroll-snap-align:start;box-shadow:inset 0 -3px #dfcc9233;min-height:159px}.word-note:nth-child(2n){background:#e4f2eb}.word-note:nth-child(3n){background:#ede7fa}.word-note:after{content:'';position:absolute;right:0;bottom:0;border:8px solid #ddd0a8;border-bottom-color:#fbfbff;border-right-color:#fbfbff;border-top-left-radius:5px}.note-label{display:block;color:#737966;font-size:8px;font-weight:650}.word-note strong{display:block;font-size:27px;letter-spacing:1px;margin:7px 0 1px;font-weight:650}.word-note small{display:block;font-size:10px;color:#777c81;line-height:1.6}.word-note b{font-size:10px;font-weight:400;display:block}.sound{width:36px!important;height:36px!important;min-height:36px!important;background:#ffffff91!important;border-radius:12px!important;color:#587e70;margin-top:12px}.sound svg{width:15px;height:15px}.phone-carousel{display:flex;align-items:center;justify-content:space-between;margin:5px 0 9px}.tiny-button{display:grid;place-items:center;width:30px;height:30px;background:none;color:#a5a6bd}.tiny-button svg{width:14px;height:14px}.phone-dots{display:flex;gap:5px}.phone-dots i{width:4px;height:4px;background:#ded9ef;border-radius:3px}.phone-dots i.active{width:13px;background:var(--purple)}.flipped{transform:rotate(180deg)}.mini-notebook{display:flex;align-items:center;padding:12px;border-radius:17px;background:#e0e6ff;position:relative}.mini-notebook b{font-size:14px;white-space:nowrap}.mini-notebook span{display:block;font-size:8px;margin-top:4px;color:#6f809e}.mini-notebook em{display:inline-block;font-size:8px;margin-top:12px;font-style:normal;background:#fff;padding:6px 10px;border-radius:20px}.mini-notebook img{width:83px;position:absolute;right:0;bottom:2px}.mini-tiles{display:flex;gap:8px;margin-top:10px}.mini-tiles a{display:flex;align-items:center;gap:9px;flex:1;background:#ffedf0;border-radius:12px;padding:9px;font-size:11px}.mini-tiles a:last-child{background:#edf0ff}.mini-tiles img{width:28px;height:28px}.mini-hsk{font-size:9px;background:#456aac;color:white;padding:9px 3px;border-radius:3px}.phone-home{position:absolute;bottom:6px;width:70px;height:4px;background:#2b2d38;left:50%;transform:translateX(-50%);border-radius:5px}.floating-note{position:absolute;top:93px;right:-10px;display:flex;flex-direction:column;background:#fff3ca;box-shadow:0 14px 28px #9d8d5530;border-radius:15px 15px 3px 15px;padding:20px 23px;transform:rotate(9deg);animation:note-float 6s ease-in-out infinite}.floating-note>span{font-size:37px;letter-spacing:4px}.floating-note small{font-size:10px;color:#7b785f;margin-top:4px}.floating-note i{position:absolute;top:-17px;right:-12px;color:#c1af6f;font-size:30px;font-style:normal}.hero-panda{position:absolute;right:-25px;bottom:16px;width:180px;height:210px;filter:drop-shadow(0 15px 12px #45427110)}.little-label{position:absolute;left:-10px;bottom:30px;background:white;border:1px solid #eeedf5;box-shadow:0 8px 24px #40346c0b;padding:13px 18px;border-radius:14px;font-size:11px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:36px;gap:28px}h2{font-size:40px;line-height:1.18;letter-spacing:-1.5px;font-weight:700}.section-heading h2{margin-top:13px}.section-heading>p,.course-side p{font-size:14px;line-height:1.8;color:var(--muted)}.feature-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}.feature{border-radius:var(--radius);padding:35px 34px;overflow:hidden;min-height:405px}.feature-tag{font-size:10px;letter-spacing:1.8px;font-weight:700;color:#6c7c9c;display:block;margin-bottom:20px}.feature h3{font-size:32px;line-height:1.16;letter-spacing:-1px;font-weight:700}.feature p{font-size:14px;line-height:1.8;color:#64718a;margin-top:16px}.wordbook-feature{background:#e8edff;position:relative;display:flex;align-items:flex-start}.feature-text{position:relative;z-index:1;max-width:265px}.feature-text .text-link{margin-top:24px;font-size:12px;gap:5px}.feature-text .text-link svg{width:16px}.book-illustration{position:absolute;right:-25px;width:275px;bottom:-10px;transform:rotate(-5deg)}.review-feature{background:#fbf0ed;display:grid;grid-template-columns:1fr 165px;column-gap:15px;align-content:start}.review-feature>.feature-tag{grid-column:1/-1}.review-feature>p{grid-column:1;line-height:1.75}.review-demo{grid-column:2;grid-row:2/4;align-self:center;display:flex;align-items:center;flex-direction:column}.demo-paper{background:#fffdfa;border-radius:14px 14px 4px 14px;padding:17px 20px;transform:rotate(5deg);box-shadow:0 8px 0 #f0dcae,0 20px 24px #9b734414;min-width:150px;display:flex;flex-direction:column}.demo-paper strong{display:block;font-size:32px;font-weight:600;margin:8px 0}.demo-paper small{display:block;color:#8b8190;font-size:12px}.demo-paper b{font-size:12px;font-weight:400}.demo-paper .sound{background:#f0f3f3!important;align-self:flex-end;margin-top:8px}.save-button{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:27px;border-radius:25px;min-height:42px;padding:10px 14px;background:white;box-shadow:0 4px 12px #9f5f4510;font-size:11px;font-weight:650;white-space:nowrap}.save-button svg{width:15px;height:15px}.save-button[aria-pressed=true]{background:#dceee2;color:#386752}.demo-caption{font-size:9px;color:#8c7773;margin-top:10px}.writing-panel{border-radius:34px;background:#f6f7fa;border:1px solid #edeef3;display:grid;grid-template-columns:1fr 1fr;gap:70px;padding:58px 72px;align-items:center}.writing-copy h2{margin-top:20px;font-size:38px}.writing-copy h2 span{color:var(--purple)}.writing-copy>p{font-size:15px;line-height:1.9;color:var(--muted);margin-top:20px;max-width:390px}.writing-modes{margin-top:30px;display:flex;flex-wrap:wrap;gap:8px}.writing-modes button{display:flex;align-items:center;gap:8px;min-height:44px;padding:10px 15px;border:1px solid #dedfe9;border-radius:12px;font-size:12px;background:white}.writing-modes button.active{color:white;background:var(--purple);border-color:var(--purple)}.writing-modes svg{width:16px;height:16px}.writing-tip{display:flex;align-items:center;gap:7px;color:#7c8292;font-size:10px;margin-top:20px}.writing-tip svg{width:16px;height:16px;color:#7ba892}.writing-demo{background:white;box-shadow:0 15px 36px #4545670a;border:1px solid #e7e7f0;border-radius:23px;padding:23px;max-width:365px;justify-self:center;width:100%}.writer-toolbar{display:flex;align-items:center;justify-content:space-between;gap:15px}.writer-toolbar>span{font-size:9px;font-weight:650;letter-spacing:1.1px;color:#8a8fa0}.character-picker{display:flex;gap:4px}.character-picker button{width:38px;height:38px;border-radius:10px;background:#f5f5f9;color:#999ead;font-size:18px}.character-picker button.active{background:#eeeaff;color:var(--purple)}.hanzi-box{position:relative;margin:18px auto 15px;width:248px;height:248px;touch-action:none;border:1px solid #e9e3da;border-radius:8px;background:linear-gradient(45deg,transparent 49.8%,#e9e5df 49.8%,#e9e5df 50.2%,transparent 50.2%),linear-gradient(-45deg,transparent 49.8%,#e9e5df 49.8%,#e9e5df 50.2%,transparent 50.2%),linear-gradient(90deg,transparent 49.8%,#e3dbd3 49.8%,#e3dbd3 50.2%,transparent 50.2%),linear-gradient(0deg,transparent 49.8%,#e3dbd3 49.8%,#e3dbd3 50.2%,transparent 50.2%),#fffdf8;overflow:hidden;display:grid;place-items:center}.hanzi-box>svg{width:100%;height:100%;stroke:none}.writer-meta{display:flex;align-items:center;justify-content:space-between}.writer-meta strong{display:block;font-size:17px}.writer-meta div>span{display:block;color:#8e94a3;font-size:12px;margin-top:3px}.writer-meta>span{font-size:11px;color:#8d8b9a;background:#f4f3f8;border-radius:15px;padding:7px 12px}.writer-bottom{display:flex;gap:10px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:17px;padding-top:10px}.writer-bottom>span{font-size:10px;line-height:1.5;color:#7d8496;max-width:245px}.icon-button{display:inline-grid;place-items:center;background:white;border:1px solid #e7e7ed;border-radius:50%;width:44px;height:44px;min-width:44px;flex-shrink:0;font-size:23px}.icon-button:hover{background:#f1eefb}.resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.resource-card{position:relative;border:1px solid var(--line);border-radius:24px;padding:28px;text-align:left;background:white;transition:transform .2s var(--ease),box-shadow .2s}.resource-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #3530590b}.resource-card>img{width:70px;height:70px;margin-bottom:24px}.resource-card h3{font-size:20px;letter-spacing:-.4px}.resource-card p{font-size:13px;line-height:1.8;color:var(--muted);margin-top:10px}.round-arrow{position:absolute;right:26px;top:32px;border:1px solid #e7e2f7;border-radius:50%;width:33px;height:33px;display:grid;place-items:center;color:var(--purple)}.course-section{background:#f8f7f4;padding:64px 0 48px;overflow:hidden}.course-side{display:flex;gap:35px;align-items:center}.rail-controls{display:flex;gap:8px}.rail-controls button:disabled{opacity:.35}.book-rail{display:flex;gap:29px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:17px 14px 37px 8px;overscroll-behavior-x:contain}.book-rail::-webkit-scrollbar{display:none}.book-rail .hbook{flex:0 0 150px;height:213px;scroll-snap-align:center;animation:none;box-shadow:0 12px 17px #32251921,0 2px 4px #32251914;transform:rotate(0);border-radius:4px 8px 8px 4px;transition:transform .3s var(--ease)}.book-rail .hbook:hover{transform:translateY(-7px)}.book-rail .hbook[aria-pressed=true]{transform:translateY(-9px);outline:2px solid #b5a68a;outline-offset:6px}.book-rail .hb-inner{align-items:center;text-align:center;padding:38px 14px 17px 24px}.book-rail .hb-series{letter-spacing:5px;font-size:12px;margin-top:0}.book-rail .hb-number{font-size:55px;margin-top:5px}.book-rail .hb-label{left:13px;width:19px;gap:5px}.book-rail .hb-label i{font-size:10px;letter-spacing:2px}.book-rail .hb-label s{font-size:9px;width:12px;height:12px}.book-rail .hb-corner{width:33px;height:33px}.book-rail .hb-corner b{font-size:9px}.book-rail .hb-pat{opacity:.5;animation:none}.book-rail .hb-pat:after{animation:none}.book-detail{border-top:1px solid #e3e0d9;padding:25px 0 0;display:flex;justify-content:space-between;gap:25px;align-items:center}.book-detail-main>span{font-size:9px;letter-spacing:1.4px;font-weight:700;color:#9a8565}.book-detail h3{font-size:22px;margin:7px 0;color:#433c34}.book-detail p{font-size:14px;line-height:1.7;color:#837c73}.book-detail-meta{display:flex;flex-direction:column;gap:12px;font-size:12px;align-items:flex-end;color:#817665}.book-detail-meta .text-link{color:#5d554b;font-size:12px}.download-panel{background:linear-gradient(110deg,#f0edff,#eae7fe);padding:50px 56px;border-radius:32px;display:grid;grid-template-columns:1fr 1.08fr;gap:30px;align-items:center}.download-copy{position:relative}.download-copy>img{width:62px;height:62px;margin-bottom:20px}.download-copy h2{font-size:42px;margin:13px 0 15px}.download-copy p{font-size:14px;line-height:1.8;color:#78758d}.stores{display:grid;grid-template-columns:1fr 1fr;gap:15px}.store-card{padding:22px 20px 19px;background:#ffffffd9;border:1px solid white;border-radius:21px;display:flex;flex-direction:column;align-items:center;text-align:center}.store-heading{display:flex;align-items:center;gap:9px;font-size:15px}.store-heading svg{width:23px;height:28px}.play-store{stroke:none}.store-card>a>img{margin-top:20px;width:124px;height:124px}.qr-caption{font-size:9px;color:#8a869e;margin:12px 0 17px}.store-link{box-shadow:none;border-radius:10px;padding:12px 10px;min-height:42px;gap:7px;font-size:10px;width:100%;margin-top:auto}.store-link:disabled{background:#eceaf4;color:#888096;transform:none}.apple-soon{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:33px 0;gap:9px}.apple-soon>span{font-size:38px;color:#beb8d5;letter-spacing:-2px;font-weight:650}.apple-soon b{font-size:12px;color:#827891}.apple-soon small{font-size:9px;color:#9c96a9;max-width:110px;line-height:1.7}.download-section{margin-bottom:60px}footer{border-top:1px solid var(--line);padding-top:26px;padding-bottom:34px;display:flex;align-items:center;gap:25px;justify-content:space-between}footer .brand{font-size:15px;gap:7px}footer .brand img{width:31px;height:31px}footer>span{font-size:11px;color:#9594a3}footer>div{display:flex;gap:20px;align-items:center;font-size:10px;color:#838394}footer button{padding:10px 0;background:none;font-size:11px}dialog{border:1px solid var(--line);border-radius:26px;box-shadow:0 30px 80px #20284629;width:min(500px,calc(100% - 32px));padding:38px;max-height:80dvh;color:var(--ink)}dialog::backdrop{background:#26223e55;backdrop-filter:blur(4px)}dialog h2{font-size:28px;margin:18px 0}dialog p{font-size:14px;line-height:1.8;color:var(--muted);margin:12px 0}dialog .button{margin-top:12px}.dialog-close{position:absolute;right:14px;top:12px;width:36px;height:36px;min-width:36px;font-size:25px}.tone-list{display:flex;gap:10px;margin-top:20px}.tone-list button{background:#f0ecff;border-radius:12px;padding:12px;font-size:24px;flex:1}.tone-list small{font-size:10px;display:block;margin-top:5px}.example-sentence{background:#f5f5fa;padding:22px;border-radius:15px;margin:18px 0}.example-sentence strong{display:block;font-size:30px;margin-bottom:6px}.example-sentence small{color:var(--purple)}@keyframes note-float{0%,100%{transform:translateY(0) rotate(9deg)}50%{transform:translateY(-8px) rotate(7deg)}}
@media(min-width:1500px){.hero{min-height:735px}.hero h1{font-size:60px}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.nav-wrap{padding:0 30px}nav{gap:20px}.hero{gap:20px}.hero h1{font-size:43px;letter-spacing:-1.9px}.hero-visual{height:580px}.hero-orbit{inset:50px 0 25px}.floating-note{right:-7px;top:90px;padding:15px}.floating-note>span{font-size:30px}.hero-panda{right:-20px;width:140px}.little-label{left:5px;font-size:9px;padding:12px}.visual-caption{display:none}.feature{padding:28px}.book-illustration{width:230px;right:-35px;bottom:-10px}.feature-text{max-width:230px}.review-feature{grid-template-columns:1fr 140px}.review-demo{transform:scale(.9);transform-origin:right center}.feature h3{font-size:28px}.writing-panel{padding:45px 35px;gap:25px}.writing-copy h2{font-size:33px}.download-panel{padding:40px 34px}.download-copy h2{font-size:36px}.store-card{padding:20px 13px}.section-heading h2{font-size:35px}footer>span{display:none}}
@media(max-width:900px){html{scroll-padding-top:87px}.wrap{width:calc(100% - 40px)}.section-space{margin-top:66px}.site-header{height:76px}.nav-wrap{padding:0 20px;gap:12px}.brand{font-size:18px;gap:8px}.brand img{width:39px;height:39px}.brand-cn{font-size:8px;letter-spacing:1.5px}.menu-toggle{display:flex!important;flex-direction:column;justify-content:center;gap:5px;border:0;background:#f4f1ff;width:42px;height:42px;min-width:42px;border-radius:13px}.menu-toggle span{height:2px;width:17px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}nav{position:absolute;top:75px;left:0;right:0;display:none;padding:18px 24px 24px;background:white;box-shadow:0 12px 24px #242c4414;border-bottom:1px solid #e8e8ef}nav.open{display:flex;align-items:stretch;flex-direction:column;gap:3px}nav>a:not(.button){padding:14px 0}nav .button{margin-top:6px}.hero{grid-template-columns:1fr;padding-top:35px;gap:8px;min-height:0;padding-bottom:0}.hero-copy{text-align:left}.eyebrow{font-size:9px;letter-spacing:1.15px}.hero h1{font-size:clamp(32px,8.7vw,50px);letter-spacing:-1.5px;line-height:1.16;margin:20px 0}.hero-copy>p{font-size:14px;line-height:1.8;max-width:510px}.hero-actions{gap:20px;margin-top:24px}.hero-actions .button{padding:14px 18px;min-height:48px;font-size:13px;gap:12px}.hero-actions .text-link{font-size:12px;gap:7px}.hero-foot{margin-top:20px;gap:8px;font-size:10px;flex-direction:row;flex-wrap:wrap}.hero-foot svg{width:13px;height:13px}.hero-visual{height:560px;width:100%;max-width:500px;justify-self:center;margin-top:18px}.phone{transform:rotate(-3deg) scale(.91)}.hero-orbit{inset:17px -8px 14px}.floating-note{top:78px;right:-5px;padding:13px 15px;z-index:3}.floating-note>span{font-size:26px}.floating-note small{font-size:8px}.floating-note i{font-size:20px;top:-10px;right:-8px}.hero-panda{right:-10px;bottom:0;width:136px;height:162px;z-index:3}.little-label{left:-5px;bottom:17px;font-size:9px;padding:11px 12px}.section-heading{display:block;margin-bottom:24px}.section-heading h2,h2{font-size:29px;letter-spacing:-.8px;line-height:1.22}.section-heading>p{margin-top:16px;font-size:13px}.desktop-only{display:none}.feature-grid{grid-template-columns:1fr;gap:15px}.feature{border-radius:24px;padding:27px 25px;min-height:350px}.feature-tag{font-size:9px;margin-bottom:18px}.feature h3{font-size:29px}.feature p{font-size:13px;margin-top:13px}.feature-text{max-width:225px}.feature-text .text-link{margin-top:20px;font-size:11px}.book-illustration{width:230px;right:-29px;bottom:-18px}.wordbook-feature{padding-bottom:180px;min-height:430px}.wordbook-feature .book-illustration{width:210px;right:-10px;bottom:-12px}.wordbook-feature p{max-width:235px}.review-feature{min-height:335px;grid-template-columns:1fr 145px;padding:27px 23px}.review-demo{transform:scale(.92)}.writing-panel{padding:29px 21px;grid-template-columns:1fr;gap:27px;border-radius:26px}.writing-copy h2{font-size:29px;letter-spacing:-1px;margin-top:15px}.writing-copy>p{font-size:13px;margin-top:15px}.writing-modes{margin-top:20px;gap:7px}.writing-modes button{font-size:11px;padding:10px 12px}.writing-tip{font-size:9px;margin-top:14px;line-height:1.6}.writing-demo{padding:18px;width:100%;max-width:355px}.hanzi-box{width:232px;height:232px}.writer-toolbar>span{font-size:8px}.character-picker button{width:35px;height:35px}.writer-bottom>span{font-size:10px}.resource-grid{grid-template-columns:1fr;gap:12px}.resource-card{display:grid;grid-template-columns:65px 1fr;column-gap:18px;padding:21px 22px;align-items:center;border-radius:21px}.resource-card>img{width:57px;height:57px;grid-row:1/3;margin:0}.resource-card h3{font-size:18px;padding-right:28px}.resource-card p{font-size:12px;margin-top:5px;line-height:1.65}.round-arrow{top:20px;right:19px;width:29px;height:29px}.course-section{padding:39px 0 31px}.course-side{justify-content:space-between;margin-top:18px;gap:15px}.course-side p{font-size:12px;line-height:1.7}.rail-controls button{width:39px;height:39px;min-width:39px}.book-rail{width:calc(100% + 20px);gap:25px;padding-bottom:30px}.book-rail .hbook{flex-basis:143px;height:204px}.book-detail{display:block;padding-top:20px}.book-detail h3{font-size:22px}.book-detail p{font-size:12px}.book-detail-meta{align-items:flex-start;flex-direction:row;flex-wrap:wrap;justify-content:space-between;margin-top:17px;gap:15px;font-size:11px}.book-detail-meta .text-link{font-size:11px}.download-panel{grid-template-columns:1fr;gap:28px;padding:28px 20px;border-radius:25px}.download-copy>img{width:50px;height:50px;margin-bottom:15px}.download-copy h2{font-size:32px;letter-spacing:-1px}.download-copy p{font-size:13px}.stores{gap:10px}.store-card{padding:18px 10px 12px;min-height:195px;border-radius:17px}.store-heading{font-size:12px;gap:5px}.store-heading svg{width:19px;height:24px}.store-link{font-size:10px;padding:10px 7px;min-height:42px;gap:5px}.store-card>a>img{width:107px;height:107px;margin-top:17px}.qr-caption{font-size:8px;margin:9px 0 16px}.apple-soon{padding:24px 0}.apple-soon small{font-size:8px}.download-section{margin-bottom:34px}footer{display:flex;flex-wrap:wrap;padding-top:24px;gap:18px}footer .brand{font-size:15px}footer>div{flex-wrap:wrap;gap:18px;width:100%}footer>div>span{margin-left:auto;font-size:9px}dialog{padding:30px 23px}dialog h2{font-size:25px}.tone-list{gap:6px}.tone-list button{padding:12px 7px;font-size:23px}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.nav-wrap{padding:0 16px}.hero h1{font-size:31px;letter-spacing:-1.3px}.hero-foot{flex-direction:column}.hero-visual{height:525px}.phone{transform:rotate(-3deg) scale(.84)}.floating-note{right:-4px;top:63px;padding:12px}.hero-panda{width:112px;right:-5px}.little-label{font-size:8px;bottom:17px;padding:10px}.feature{padding:25px 21px}.review-feature{grid-template-columns:1fr 126px}.review-feature h3{font-size:25px}.review-demo{transform:scale(.8)}.review-feature p{font-size:12px}.writing-panel{padding:26px 15px}.writing-demo{padding:15px}.hanzi-box{width:218px;height:218px}.writing-copy h2{font-size:26px}.writing-modes{gap:5px}.writing-modes button{padding:10px 9px;font-size:10px}.resource-card{padding:21px 18px;column-gap:10px}.store-link{font-size:9px}.store-heading{font-size:11px}.store-heading svg{width:16px}.store-card>a>img{width:95px;height:95px}.download-panel{padding:26px 16px}.book-detail-meta{font-size:10px}footer>div>span{margin-left:0;width:100%}}
@media(max-width:900px){.review-feature h3{font-size:25px;letter-spacing:-.8px}.review-feature>p{font-size:12px;line-height:1.8}.floating-note{right:7px}.floating-note i{right:0}}
@media(max-width:360px){.floating-note{right:13px}.review-feature h3{font-size:23px}.review-feature>p{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.hero-panda,.floating-note{will-change:auto}}

/* Softer typography and controls — September 12 design revision. */
:root{font-family:'Nunito','Segoe UI',Arial,sans-serif;--radius:34px;--ease:cubic-bezier(.2,.75,.25,1)}
.brand{font-weight:800;letter-spacing:-.5px}
.hero h1{font-weight:800;letter-spacing:-1.9px;line-height:1.16}
h2,.feature h3{font-weight:800;letter-spacing:-.8px;line-height:1.22}
.hero-copy>p{line-height:1.8}
.button{border-radius:999px;padding-inline:28px;font-weight:800;box-shadow:0 7px 18px #7259e814;transition:background .2s,box-shadow .2s,transform .2s var(--ease)}
.button:hover{transform:translateY(-1px);box-shadow:0 9px 22px #7259e81c}
.button:active{transform:scale(.98)}
.nav-download{padding-inline:28px;min-width:98px}
.text-link{font-weight:800;line-height:1.5}
.text-link:hover{text-decoration:underline;text-underline-offset:5px}
.hero-foot{gap:9px;margin-top:29px}
.hero-foot span{color:#7b8191;font-size:12px}
.hero-actions{gap:28px}
.feature{border-radius:34px}
.writing-panel,.download-panel{border-radius:38px}
.writing-demo{border-radius:28px}
.resource-card{border-radius:30px}
.resource-card h3{padding-right:0;font-weight:800}
.store-card{border-radius:26px}
.store-link{border-radius:999px;padding:12px 10px}
.save-button{border-radius:999px}
.save-button[aria-pressed=true] svg{fill:currentColor}
.writing-modes button{border-radius:999px}
.writing-tip{line-height:1.6}
.rail-controls{gap:9px}
.rail-controls .icon-button{width:auto;min-width:94px;height:44px;padding:0 15px;border-radius:999px;font-size:12px;font-weight:700}
#replay.icon-button{width:auto;min-width:61px;border-radius:999px;padding-inline:12px;font-size:12px;font-weight:700}
.phone-carousel{gap:4px}
.phone-carousel .tiny-button{width:auto;min-width:42px;padding:0 3px;font-size:8px;font-weight:700}
.phone-carousel .tiny-button:disabled{opacity:.35}
@media(max-width:1100px) and (min-width:901px){nav{gap:22px}.nav-wrap{gap:18px}.hero h1{font-size:42px;letter-spacing:-1.3px}}
@media(max-width:900px){.hero h1{letter-spacing:-1px}.hero-actions{gap:22px}.feature{border-radius:30px}.writing-panel,.download-panel{border-radius:32px}.resource-card{border-radius:26px}.rail-controls .icon-button{min-width:87px;height:44px;font-size:11px}.store-link{padding:11px 7px}.hero-foot span{font-size:11px}}
@media(max-width:360px){.hero h1{font-size:31px;letter-spacing:-.8px}.button{padding-inline:22px}.hero-actions{gap:18px}.store-link{padding-inline:7px}.rail-controls .icon-button{min-width:80px;padding-inline:12px}.feature{border-radius:27px}}