:root { color-scheme: light; --bg:#f8faf9; --ink:#14202a; --muted:#64717f; --line:#e3eae7; --green:#087e69; --btn:#078a73; --glow:#5cd9b830; --chat:#fff; --bubble:#edf0f3; }
:root[data-theme=dark] { color-scheme:dark; --bg:#121918; --ink:#edf3f1; --muted:#a0afa9; --line:#2c3733; --green:#5dd4b1; --btn:#087e69; --glow:#31b38c20; --chat:#222d2a; --bubble:#34413c; }
* {box-sizing:border-box} body {margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;min-height:100svh;display:flex;flex-direction:column} button,a {-webkit-tap-highlight-color:transparent} a {color:inherit;text-decoration:none} button {font:inherit;cursor:pointer} .header,main,footer {width:min(1320px,calc(100% - 96px));margin-inline:auto}.header {height:96px;display:flex;align-items:center;justify-content:space-between}.brand {display:flex;gap:10px;align-items:center;font-size:28px;font-weight:650;letter-spacing:1px}.brand img {object-fit:contain}.theme {width:38px;height:38px;background:none;color:var(--ink);border:1px solid transparent;border-radius:50%;font-size:27px}.theme:hover {background:var(--line)}main {flex:1;display:flex;align-items:center}.hero {display:grid;grid-template-columns:1fr 1.25fr;align-items:center;gap:50px;width:100%;padding:40px 0 64px}.eyebrow {font-size:17px;color:var(--muted);margin:0 0 22px}h1 {font-size:clamp(38px,4.1vw,62px);line-height:1.35;letter-spacing:-2px;margin:0;font-weight:750}h1 span {color:var(--green)}.description {font-size:17px;line-height:1.9;color:var(--muted);margin:26px 0 32px}.description span {white-space:nowrap}.downloads {display:flex;flex-wrap:wrap;gap:12px}.download {min-height:52px;padding:13px 18px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:15px;font-weight:550;border:1px solid var(--muted);cursor:pointer}.download svg {width:23px;height:23px;fill:currentColor;flex:none}.primary {background:var(--btn);border-color:var(--btn);color:#fff}.secondary {background:var(--chat)}.download:hover:not([aria-disabled=true]) {filter:brightness(.94)}.download[aria-disabled=true] {opacity:.55;cursor:default}.download-status {font-size:12px;color:var(--muted);line-height:1.7;min-height:21px;margin:12px 0 0}#mac-choices {font-size:14px;margin-top:8px}#mac-choices a {display:inline-block;color:var(--green);text-decoration:underline;margin:0 20px 8px 0}.product {position:relative;height:515px;isolation:isolate}.product::before {content:"";position:absolute;inset:-15% -8%;z-index:-1;background:radial-gradient(ellipse,var(--glow),transparent 69%)}.chat {position:absolute;left:0;top:23px;bottom:18px;width:78%;border-radius:15px;background:var(--chat);border:1px solid var(--line);overflow:hidden;box-shadow:0 10px 25px #132f2310}.chat-bar {height:36px;background:var(--bubble);display:flex;align-items:center;gap:7px;padding-left:15px}.chat-bar i {width:10px;height:10px;border-radius:50%;background:#ff6158}.chat-bar i:nth-child(2){background:#febc2e}.chat-bar i:nth-child(3){background:#2bc840}.chat-content{display:flex;height:calc(100% - 36px)}aside{width:69px;border-right:1px solid var(--line);padding:24px 18px;flex:none}aside b{display:block;width:26px;height:26px;margin-bottom:25px;border-radius:50%;background:#accab8}aside b:nth-child(2){background:#a1c6ed}aside b:nth-child(3){background:#e2cdb1}.conversation{position:relative;flex:1;min-width:0;padding:32px 12px 0;font-size:12px}.conversation small{display:block;color:var(--muted);text-align:center;font-size:10px}.conversation p{width:fit-content;max-width:95%;background:var(--bubble);padding:12px;border-radius:8px;line-height:1.6;margin:15px 0 30px}.conversation p.reply{background:#a4e6c4;color:#15432d;margin-left:14px}.composer{border-top:1px solid var(--line);position:absolute;bottom:0;left:0;right:0;height:93px;padding:12px 16px;display:flex;flex-direction:column;gap:18px;color:var(--muted)}.assistant{position:absolute;right:0;top:0;width:64%;height:100%;background:#18181c;border:1px solid #383b3c;border-radius:14px;color:#e0e0e0;box-shadow:0 18px 40px #112e2429;overflow:hidden;display:flex;flex-direction:column}.app-heading{height:40px;padding:0 13px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #2a2a2e;font-size:13px;font-weight:600}.app-heading small{font-weight:400;color:#8a8a90;font-size:10px}.app-tools{color:#c3cac6}.libraries{display:flex;gap:23px;padding:0 12px;border-bottom:1px solid #2a2a2e;font-size:12px}.libraries>*{padding:13px 0}.libraries b{color:#4ecca3;border-bottom:2px solid #4ecca3}.categories{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;padding:9px;border-bottom:1px solid #2a2a2e;font-size:9px;white-space:nowrap}.categories>*{padding:7px 0;text-align:center;background:#232327;border:1px solid #2a2a2e;border-radius:5px}.categories b{background:#243b34;border-color:#109b83;color:#4ecca3}.phrases{padding:13px 11px;flex:1;overflow:hidden}.phrases small{font-size:10px;color:#999fa2;display:block;margin:0 0 7px}.phrases p{font-size:12px;line-height:1.7;margin:0 0 9px;padding:11px;background:#232327;border:1px solid #2a2a2e;border-radius:6px}.phrases p+small{margin-top:17px}.search{height:36px;border:1px solid #46464a;border-radius:6px;margin:8px 10px;color:#939b96;font-size:20px;display:flex;align-items:center;gap:8px;padding:0 10px;flex:none}.search span{font-size:11px}footer{border-top:1px solid var(--line);font-size:12px;color:var(--muted);padding:22px 0 25px}a:focus-visible,button:focus-visible{outline:3px solid var(--green);outline-offset:4px}
@media(min-width:1600px){.hero{gap:85px}.product{height:570px}.phrases p{font-size:14px}}
@media(max-width:1000px){.header,main,footer{width:calc(100% - 48px)}.hero{gap:26px}.product{height:455px}.assistant{width:70%}.description{font-size:15px}.download{padding:12px;font-size:13px}.categories{font-size:8px;gap:2px}.phrases p{font-size:11px}}
@media(max-width:720px){.header{height:78px}.brand{font-size:23px}.hero{grid-template-columns:1fr;padding:24px 0 40px;gap:26px}.intro{text-align:center}h1{font-size:42px;letter-spacing:-1.5px}.eyebrow{font-size:14px;margin-bottom:12px}.description{margin:16px 0 22px}.downloads{justify-content:center}.product{width:min(500px,100%);height:455px;margin:auto}.assistant{width:64%}.download{font-size:14px;padding:12px 14px}.categories{font-size:9px}footer{padding:18px 0}}
@media(max-width:400px){h1{font-size:32px}.description{font-size:14px}.product{height:405px}.categories{font-size:7px;gap:2px;padding-inline:6px}.app-heading{padding-inline:9px}.app-heading small{font-size:8px}.phrases p{font-size:10px;padding:9px}.assistant{width:65%}.app-tools{font-size:10px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}