:root{--ink:#1d1d1f;--muted:#86868b;--orange:#ec6a35;--bg:#f5f5f7;--line:rgba(0,0,0,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;letter-spacing:-.025em}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ef9d70;outline-offset:5px}img{display:block;width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:600;letter-spacing:-.05em}h1{font-size:clamp(48px,6.7vw,94px);line-height:1.16}h2{font-size:clamp(36px,4.4vw,60px);line-height:1.18}h3{font-size:30px;line-height:1.3}.muted{color:var(--muted)}.accent{color:var(--orange)}.gradient-text{background:linear-gradient(100deg,#df5c2f,#f99a63 80%);background-clip:text;-webkit-background-clip:text;color:transparent}.nav{position:sticky;top:0;z-index:50;height:74px;padding:0 max(5vw,24px);display:flex;align-items:center;justify-content:space-between;background:rgba(250,250,252,.73);backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%);border-bottom:1px solid rgba(255,255,255,.85)}.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:600;letter-spacing:-.03em}.sun{font-size:35px;color:var(--orange);line-height:1}.nav nav{display:flex;align-items:center;gap:32px;font-size:12px;letter-spacing:0}.nav nav>a:not(.small-cta){color:#666}.nav nav>a:hover{color:var(--orange)}.small-cta{background:var(--ink);color:#fff;padding:10px 18px;border-radius:24px}.small-cta span{padding-left:10px}.menu-toggle{display:none}.hero{position:relative;text-align:center;overflow:hidden;padding:82px 24px 0;background:#faf9f7}.hero-glow{position:absolute;inset:240px -20% 0;background:radial-gradient(ellipse at 30% 50%,#ffe0cb 0,transparent 52%),radial-gradient(ellipse at 85% 30%,#e7f1fb 0,transparent 45%);pointer-events:none}.hero>*:not(.hero-glow){position:relative}.eyebrow{font-size:11px;font-weight:600;letter-spacing:.12em;line-height:1.7;text-transform:uppercase;color:#777}.hero .eyebrow span{margin:0 12px;color:#bbb}.hero h1{margin-top:28px}.hero-copy{font-size:20px;color:#7c7b7a;line-height:1.7;margin-top:23px;font-weight:400}.hero-actions{display:flex;align-items:center;justify-content:center;gap:30px;margin:28px 0 10px}.button{border:none;background:var(--ink);color:white;border-radius:30px;padding:16px 24px;display:inline-flex;justify-content:center;align-items:center;gap:23px;font-size:14px;font-weight:500;transition:transform .2s,background .2s}.button:hover{background:#3c3c3e;transform:translateY(-2px)}.text-link{color:var(--orange);font-size:14px}.text-link span{margin-left:8px}.hero-art{max-width:980px;margin:35px auto 0;position:relative}.hero-art img{mix-blend-mode:multiply;max-height:490px;object-fit:contain}.glass{background:linear-gradient(130deg,rgba(255,255,255,.83),rgba(255,255,255,.35));box-shadow:0 10px 35px #7766560b,inset 0 1px 1px #fff;border:1px solid rgba(255,255,255,.95);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px)}.device-tag{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);border-radius:28px;padding:14px 23px;display:flex;align-items:center;gap:10px;font-size:13px;white-space:nowrap}.device-tag small{color:#888;font-size:11px;margin-left:8px}.status-dot{width:6px;height:6px;background:var(--orange);border-radius:50%;display:inline-block;flex:none}.hero-bottom{border-top:1px solid var(--line);margin:35px auto 0;max-width:1120px;padding:27px 0 35px;display:flex;gap:14px;align-items:center;justify-content:center;font-size:16px;color:#92908f}.hero-bottom strong{color:#444;font-weight:500}.mini-label{font-size:12px;margin-left:60px}.section{max-width:1200px;margin:auto;padding:110px 36px}.section-top{margin-bottom:45px}.section-top .eyebrow{margin-bottom:18px}.section-top>p:not(.eyebrow){color:#86868b;font-size:18px;line-height:1.7;margin-top:25px}.centered{text-align:center}.segmented{width:max-content;padding:5px;display:flex;border-radius:30px;margin:0 0 35px;gap:5px}.segmented button{border:0;background:transparent;color:#777;padding:12px 26px;border-radius:24px;font-size:14px;transition:all .25s}.segmented button[aria-selected=true]{background:#1d1d1f;color:white;box-shadow:0 3px 7px #0001}.story-panel{display:grid;grid-template-columns:.85fr 1.2fr;gap:55px;align-items:center;min-height:500px}.story-panel[hidden]{display:none}.story-copy h3{font-size:clamp(34px,3.5vw,49px);line-height:1.25;margin:20px 0}.pill{font-size:11px;color:#777;letter-spacing:.02em}.story-copy>p:not(.benefit){font-size:15px;color:#818186;line-height:1.9;max-width:350px}.workflow{display:flex;align-items:center;gap:12px;margin:22px 0;font-size:11px;white-space:nowrap}.workflow i{font-style:normal;color:#bbb}.benefit{font-size:20px;line-height:1.5;margin:25px 0 15px}.story-copy small{display:block;font-size:10px;color:#999;line-height:1.7}.story-image{margin:0;position:relative;align-self:stretch;min-height:450px}.story-image img{height:100%;object-fit:cover;border-radius:30px;max-height:570px}.story-image figcaption{position:absolute;left:22px;right:22px;bottom:22px;border-radius:20px;padding:20px;display:flex;align-items:center;gap:12px;font-size:12px}.calculator{margin-top:70px;background:#fff;border-radius:30px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:80px}.calculator h3{margin:15px 0;font-size:31px}.calculator p:not(.eyebrow){font-size:13px;line-height:1.8;color:#888}.calc-controls label{display:flex;justify-content:space-between;margin-bottom:10px;font-size:13px}.calc-controls output{color:var(--orange)}input[type=range]{width:100%;accent-color:var(--orange);margin:0 0 22px}.calc-result{display:flex;align-items:center;gap:15px}.calc-result strong{font-size:64px;font-weight:500;line-height:1}.calc-result span{font-size:14px;line-height:1.7}.calc-result small{font-size:10px;color:#999}.connected{max-width:none;background:#fff;padding-left:max(36px,calc((100vw - 1128px)/2));padding-right:max(36px,calc((100vw - 1128px)/2))}.devices-frame{border-radius:32px;overflow:hidden;max-height:520px;margin-top:45px}.devices-frame img{object-fit:cover}.spec-strip{display:grid;grid-template-columns:repeat(4,1fr);max-width:1000px;margin:50px auto 25px}.spec-strip>div{text-align:center;border-right:1px solid var(--line)}.spec-strip>div:last-child{border:0}.spec-strip strong{display:block;font-size:29px;font-weight:500;letter-spacing:-.04em;margin-bottom:10px}.spec-strip span{font-size:12px;color:#888}.caption{text-align:center;font-size:10px;color:#999;line-height:1.8}.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature{border-radius:28px;padding:32px;background:rgba(255,255,255,.85);min-height:235px;border:1px solid #fff}.feature-large{grid-column:span 2;grid-row:span 1;background:radial-gradient(ellipse at 90% 10%,#ffe7d7,transparent 65%),#fff}.feature-icon{display:block;color:var(--orange);font-size:32px;margin-bottom:26px}.feature h3{font-size:23px;margin-bottom:14px}.feature p{font-size:13px;color:#888;line-height:1.8;max-width:400px}.feature-large h3{font-size:32px}.connection-line{display:flex;align-items:center;gap:25px;margin-top:34px;font-size:12px}.connection-line span{padding:12px 20px;border:1px solid #e8e5e2;border-radius:25px;background:#fff8}.connection-line i{letter-spacing:5px;color:#dc9e7a}.support{background:linear-gradient(130deg,#fbe5d7,#fff6ef)}.support-note{display:block;font-size:11px;color:#af6d49;margin-top:18px}.pricing{padding-top:25px}.price-card{border-radius:36px;display:grid;grid-template-columns:1.15fr 1fr;overflow:hidden;background:#fff}.price-visual{background:radial-gradient(ellipse,#f5e6d8,transparent 65%),linear-gradient(135deg,#f6f5f3,#f4f7f9);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px 0}.price-visual img{mix-blend-mode:multiply}.price-visual .pill{margin:15px 0 30px}.price-content{padding:48px}.limited{font-size:11px;color:#af572c;background:#fcf0e7;border-radius:20px;padding:7px 12px;display:inline-block;margin-bottom:22px}.price-content h3{font-size:27px}.price{font-size:78px;font-weight:500;letter-spacing:-.06em;line-height:1.3;margin:8px 0}.price>span{font-size:36px;margin-right:3px}.price small{font-size:15px;color:#999;letter-spacing:0}.included{font-size:16px;color:#656568}.price-content ul{padding:0;list-style:none;margin:25px 0}.price-content li{font-size:13px;line-height:2;color:#777}.price-content li:before{content:'✓';margin-right:10px;color:var(--orange)}.price-content .button{width:100%}.download-link{font-size:12px;color:#9d603e;display:block;text-align:center;margin:20px 0}.terms{font-size:10px;color:#999;line-height:1.8}.faq{padding-top:0;display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}.faq h2{font-size:34px;margin-top:15px}.faq-list details{border-bottom:1px solid #dcdcdf;padding:23px 0}.faq-list summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:15px;font-weight:500;gap:20px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{font-size:21px;font-weight:300;color:#888}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{font-size:13px;color:#888;line-height:1.9;margin-top:20px}.closing{text-align:center;padding:85px 24px 110px;background:#fff}.closing>.sun{font-size:60px}.closing h2{margin:25px 0}.closing p{font-size:21px;margin:20px 0 25px;color:#777}.footer{padding:45px max(36px,calc((100vw - 1128px)/2));display:grid;grid-template-columns:1fr 1fr;gap:25px;background:#eeeeef}.footer .brand{font-size:16px}.footer>div>p{font-size:11px;color:#888;margin-top:12px}.footer-links{display:flex;align-items:center;justify-content:end;gap:24px;font-size:11px;color:#777}.fine-print{grid-column:1/-1;border-top:1px solid #d7d7da;padding-top:22px;font-size:10px;color:#999;line-height:1.8}.mobile-only{display:none}dialog{border:1px solid #fff;border-radius:30px;padding:45px;width:min(560px,90vw);color:var(--ink);background:rgba(250,250,252,.95);backdrop-filter:blur(25px);box-shadow:0 30px 100px #0002}dialog::backdrop{background:#24242b44;backdrop-filter:blur(8px)}.close-dialog{position:absolute;right:20px;top:15px;border:0;background:transparent;font-size:30px;color:#888}dialog h2{font-size:29px;margin:15px 0}dialog h2 span{display:block;font-size:22px;color:var(--orange);margin-top:10px}.dialog-intro{font-size:15px;color:#777}dialog dl>div{padding:17px 0;border-bottom:1px solid var(--line)}dialog dt{font-size:12px;font-weight:600;margin-bottom:6px}dialog dd{font-size:13px;color:#777;line-height:1.8;margin:0}.dialog-note{font-size:12px;color:#888;line-height:1.8;margin:20px 0}dialog .button{width:100%}.will-reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease,transform .8s ease}.will-reveal.visible{opacity:1;transform:none}
@media(min-width:1500px){.hero-art{max-width:1080px}.hero-art img{max-height:550px}}@media(max-width:800px){.nav{height:64px;padding:0 22px}.nav nav{gap:18px}.nav nav>a:not(.small-cta){display:none}.brand{font-size:18px}.hero{padding-top:60px}.hero h1{font-size:54px}.hero-copy{font-size:17px}.hero-art{margin:40px -24px 0}.hero-art img{min-height:280px;object-fit:cover}.device-tag{bottom:6px;padding:12px 18px}.device-tag small{display:none}.hero-bottom{font-size:13px;flex-wrap:wrap;gap:8px}.mini-label{width:100%;margin:4px 0 0}.section{padding:75px 24px}.section-top{margin-bottom:32px}h2{font-size:39px}.story-panel{grid-template-columns:1fr;gap:30px}.story-copy h3{font-size:41px}.story-copy>p:not(.benefit){max-width:none}.story-image{min-height:350px}.story-image img{max-height:460px}.calculator{padding:28px;grid-template-columns:1fr;gap:28px;margin-top:40px}.calculator h3 br{display:none}.calculator h3{font-size:26px}.calc-result strong{font-size:54px}.connected{padding-left:24px;padding-right:24px}.devices-frame{margin-top:30px;border-radius:23px}.devices-frame img{min-height:280px;object-fit:cover}.spec-strip{grid-template-columns:repeat(2,1fr);gap:30px 0;margin:35px auto 25px}.spec-strip>div:nth-child(2){border:0}.spec-strip strong{font-size:27px}.bento{grid-template-columns:repeat(2,1fr);gap:12px}.feature{padding:24px;min-height:215px}.feature h3{font-size:20px}.feature p{font-size:12px}.feature-large h3{font-size:28px}.feature-icon{margin-bottom:20px}.price-card{grid-template-columns:1fr}.price-visual{min-height:270px}.price-visual img{max-height:330px;object-fit:contain}.price-content{padding:32px}.price{font-size:72px}.faq{grid-template-columns:1fr;gap:20px;padding-top:10px}.closing{padding:70px 24px}.footer{padding:35px 24px;grid-template-columns:1fr}.footer-links{justify-content:start;flex-wrap:wrap}.fine-print{grid-column:1}.hero-actions{gap:22px}.button{padding:15px 21px}.story-image figcaption{left:15px;right:15px;bottom:15px;font-size:11px;padding:17px}.feature-large{grid-column:1/-1}.support{grid-column:1/-1}.mobile-only{display:block}}@media(max-width:430px){.hero h1{font-size:43px}.hero-actions{gap:18px}.hero-actions .text-link{font-size:12px}.hero-actions .button{font-size:12px;padding:14px 18px}.eyebrow{font-size:9px}h2{font-size:33px}.story-copy h3{font-size:36px}.bento{grid-template-columns:1fr}.feature-large,.support{grid-column:auto}.feature{min-height:190px}.section-top>p:not(.eyebrow){font-size:16px}.hero-bottom{font-size:12px}.story-image{min-height:300px}.price-content{padding:27px}.footer-links{gap:17px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.will-reveal{opacity:1;transform:none;transition:none}*{transition:none!important}}

/* AI任我行: simplified product narrative */
.product-name{font-size:25px;font-weight:500;margin:24px 0 10px}.hero h1{font-size:clamp(42px,6.2vw,84px);line-height:1.2}.hero-art{max-width:960px}.hero-art img{max-height:510px}.simple-services{max-width:940px;margin:35px auto;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.simple-services span{background:rgba(248,248,250,.9);border-radius:20px;padding:22px;text-align:center;font-size:15px}.support-line{text-align:center;margin:45px auto 25px}.support-line h3{font-size:30px}.support-line p{font-size:12px;color:#999;margin-top:12px}.delivery-summary{font-size:12px;line-height:1.8;color:#888;margin:27px 0}.pricing{padding-top:100px}.closing h2{font-size:clamp(32px,4.6vw,60px);line-height:1.25}.closing .text-link{display:inline-block;margin-top:12px}@media(max-width:800px){.simple-services{grid-template-columns:repeat(2,1fr)}.simple-services span{font-size:13px;padding:19px 12px}.hero h1{font-size:44px}.product-name{font-size:21px}.support-line h3{font-size:25px}.pricing{padding-top:70px}}@media(max-width:430px){.hero h1{font-size:36px}.hero-copy{font-size:15px}.simple-services span{font-size:12px}}