:root{--text:#eaf0fb;--muted:#a8b5cc;--line:rgba(190,211,255,.16);--accent:#a8ccff;--title:'Avenir Next','PingFang SC',sans-serif;--body:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:#0c1223;color:var(--text);font:15px/1.7 var(--body);background-image:radial-gradient(ellipse at 4% 35%,#1c2c4b88,transparent 45%),radial-gradient(ellipse at 95% 65%,#3a235144,transparent 42%)}header{max-width:1512px;margin:auto;padding:24px 44px;display:flex;justify-content:space-between;align-items:center}.brand{color:var(--text);text-decoration:none;font:600 20px var(--title);display:flex;gap:12px;align-items:center}.brand:first-letter{color:#acd7ff}.connection{font-size:12px;color:var(--muted)}.connection:before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:#92d3c3;margin-right:8px}.hero{position:relative;max-width:1424px;margin:0 auto 28px;min-height:330px;border:1px solid var(--line);border-radius:26px;overflow:hidden;background:#15213a}.hero img{position:absolute;width:100%;height:100%;object-fit:cover;object-position:right;opacity:.48}.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#101c32 0%,#101c32e8 32%,#101c3210 100%)}.hero-copy{position:relative;z-index:1;padding:34px 44px}.eyebrow,.section-label{font:600 11px/1.5 var(--title);letter-spacing:2.3px;color:#92a9cc}.hero h1{font:600 clamp(30px,3.3vw,46px)/1.28 var(--title);letter-spacing:-1.2px;margin:14px 0}.hero h1 span{background:linear-gradient(100deg,#b7e9ff,#c7b5ff);background-clip:text;color:transparent}.hero p{color:#b3c2d7;font-size:14px;margin:15px 0}.hero-meta{display:flex;gap:18px;color:#b5c6df;font-size:11px;margin-top:24px}.hero-meta span+span{border-left:1px solid #6e809b;padding-left:18px}main{max-width:1512px;margin:auto;padding:0 44px;display:grid;grid-template-columns:360px minmax(0,1fr);gap:24px;align-items:start}.glass{background:linear-gradient(135deg,rgba(44,59,85,.63),rgba(23,31,52,.65));border:1px solid var(--line);box-shadow:0 18px 60px #0002,inset 0 1px 0 #ffffff06;backdrop-filter:blur(24px);border-radius:24px}.input-panel{padding:27px}.section-label{margin-bottom:12px}h2{font:600 23px/1.4 var(--title);letter-spacing:-.4px;margin:0 0 20px}h3{font:600 15px/1.5 var(--title);margin:22px 0 8px}p{margin:10px 0}.hint{font-size:12px;color:var(--muted);line-height:1.7}.type-switch{display:flex;padding:4px;background:#0a122788;border:1px solid var(--line);border-radius:12px;gap:3px}.type-switch button{flex:1;background:transparent;color:#b6c5db;padding:9px 5px;font-size:13px}.type-switch .selected{background:linear-gradient(110deg,#46638c,#565684);box-shadow:0 2px 9px #0003;color:white}.upload{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;border:1px dashed #778db480;border-radius:16px;background:#b3caff06;padding:20px 10px;margin:20px 0 8px;cursor:pointer}.upload:hover,.upload.drag{border-color:#b8d8ff;background:#a6ceff0e}.upload-icon{font:30px var(--title);color:#b8d7ff}.upload strong{font-weight:500;margin:5px 0;font-size:14px;max-width:100%;overflow-wrap:anywhere}.upload>span:not(.upload-icon){color:var(--muted);font-size:11px}.upload input{position:absolute;width:1px;height:1px;opacity:0}.limits{display:flex;align-items:center;gap:10px;margin-top:12px}.limits i{width:3px;height:3px;background:#8193b2;border-radius:50%}label:not(.upload){display:block;font-size:13px;font-weight:500;margin:20px 0 8px}label span{font-size:11px;color:var(--muted);font-weight:400;margin-left:5px}input,textarea{width:100%;font:13px/1.7 var(--body);color:var(--text);background:#080f2080;border:1px solid #7184a140;border-radius:11px;padding:12px;outline:none}textarea{resize:vertical;min-height:85px}input::placeholder,textarea::placeholder{color:#8f9db3}input:focus,textarea:focus,button:focus-visible,.upload:focus-within{outline:2px solid #abc9f3;outline-offset:3px}button{border:0;border-radius:10px;padding:11px 17px;font:500 13px/1.5 var(--body);color:#14243e;background:#bdd6f8;cursor:pointer;transition:filter .15s,transform .15s}button:hover{filter:brightness(1.1)}button:active{transform:translateY(1px)}button:disabled{opacity:.45;cursor:wait}.primary{width:100%;display:flex;justify-content:space-between;margin-top:24px;background:linear-gradient(110deg,#b9dcfa,#c9bfee);padding:14px 16px}.secondary{background:#b8d1f30d;border:1px solid var(--line);color:#c2d4f0}.privacy{font-size:11px;line-height:1.9;color:#a6b4ca;margin-top:15px}#status{font-size:12px;color:#b6d7ce;margin-top:10px}#error{font-size:13px;color:#ffb7bc;white-space:pre-wrap;margin-top:8px}progress{width:100%;height:5px;margin-top:18px;accent-color:#b8ccff}.history{border-top:1px solid var(--line);margin-top:25px;padding-top:22px}.history h3{margin:0 0 12px}.historybtn{width:100%;text-align:left;background:transparent;border-radius:0;border-bottom:1px solid var(--line);color:#b8c9e0;padding:12px 0;font-size:12px}.empty{padding:40px}.empty h2{font-size:32px;line-height:1.5;margin:28px 0 16px}.empty h2 span{color:#b3c1d9}.intro{max-width:510px;color:#b5c1d5;font-size:14px;line-height:1.9}.dimensions{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;margin:35px 0}.dimensions>div{padding:24px 0;border-top:1px solid var(--line)}.dimensions b{font:500 12px var(--title);color:#91afd4}.dimensions h3{margin:10px 0}.dimensions p{font-size:12px;color:var(--muted)}.workflow{display:flex;gap:14px;align-items:center;padding:24px 0;border-top:1px solid var(--line);font-size:13px}.workflow em{color:#7085a4;font-style:normal}.output,.result-head{padding:30px;margin-bottom:22px}.result-top{display:flex;justify-content:space-between;gap:15px;align-items:start}.badge{font-size:11px;white-space:nowrap;border:1px solid #8bb2b755;padding:5px 10px;color:#b4ded7;border-radius:7px}video{width:100%;max-height:460px;background:#060b16;border-radius:14px}.event{display:grid;grid-template-columns:110px minmax(0,1fr);gap:20px;border-top:1px solid var(--line);padding:18px 0}.event button{align-self:start;padding:6px;font-size:11px;background:#9abaf610;color:#b9d4f4}.event p{font-size:13px;margin:3px 0}.event small{color:var(--muted)}.diagnostic{padding:18px 0;border-top:1px solid var(--line)}.diagnostic h3{margin:0;display:flex;align-items:center;justify-content:space-between;gap:14px}.diagnostic h3 span{font:400 11px var(--body);color:#bbcae0}.diagnostic p{font-size:13px;color:#c0cbe0}.diagnostic .suggest{color:#dce6f7}.priority{font-size:18px;line-height:1.8;color:#d1deff;padding:0 0 18px;border-bottom:1px solid var(--line)}ul{padding-left:20px;color:#c0cce0;font-size:14px}li{margin:8px 0}pre{font:14px/1.9 var(--body);white-space:pre-wrap;overflow-wrap:anywhere;background:#09122488;border:1px solid var(--line);border-radius:14px;padding:20px}.actions{display:flex;gap:10px;flex-wrap:wrap}.notice{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:17px;margin:25px 0}summary{cursor:pointer;color:#aec8ed;font-size:13px;padding:16px 0}footer{max-width:1424px;margin:35px auto;padding:0 20px 25px;font-size:11px;color:#8b9bb5}#motion,#hypothesis{font-size:13px;color:var(--muted)}@media(min-width:1700px){main{grid-template-columns:390px minmax(0,1fr)}}@media(max-width:1000px){header{padding:20px}.hero{margin:0 20px 20px}.hero-copy{padding:30px}.hero img{object-position:70%}.hero:after{background:linear-gradient(90deg,#101c32,#101c32c0 45%,#101c3240)}main{padding:0 20px;grid-template-columns:320px minmax(0,1fr);gap:16px}.input-panel,.output,.result-head,.empty{padding:24px}.dimensions{grid-template-columns:1fr;gap:0}.empty h2{font-size:26px}.workflow{flex-wrap:wrap;gap:8px}}@media(max-width:740px){header .connection{font-size:10px}.brand{font-size:17px}.hero{min-height:310px;border-radius:20px}.hero-copy{padding:26px 22px}.hero p{max-width:260px}.hero-meta{gap:10px;font-size:10px}.hero-meta span+span{padding-left:10px}main{grid-template-columns:1fr;padding:0 14px}.hero{margin:0 14px 18px}.hero h1{font-size:34px}.dimensions{grid-template-columns:1fr 1fr;gap:0 18px}.event{grid-template-columns:1fr;gap:8px}.event button{justify-self:start}.result-top{flex-wrap:wrap}.glass{border-radius:20px}.empty h2{font-size:27px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}
h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}.input-panel,.workspace{min-width:0}.diagnostic p,.event p{overflow-wrap:anywhere}
/* Centered review studio: spacious typography, symmetric composition. */
body{font-size:18px;background-color:#0b1020;background-image:radial-gradient(ellipse 70% 650px at 50% 180px,#34466e66,transparent),radial-gradient(ellipse at 50% 70%,#25213f44,transparent 55%)}
header{max-width:1380px;padding:26px 36px;display:grid;grid-template-columns:1fr auto 1fr;gap:28px}.brand{font-size:22px}.connection{justify-self:end;font-size:14px}nav{display:flex;gap:30px}nav a{color:#bfcbe0;text-decoration:none;font-size:16px}nav a:hover{color:#fff}
.hero{max-width:1380px;margin:0 auto 40px;min-height:420px;text-align:center;background:#131e36;border-radius:32px}.hero img{object-position:center;opacity:.44}.hero:after{background:linear-gradient(180deg,#0c152a66,#10192bd9 72%,#10192bf5),radial-gradient(ellipse at center,#0c152a88,transparent)}.hero-copy{padding:54px 30px 48px}.hero h1{font-size:clamp(40px,4.5vw,64px);font-weight:600;letter-spacing:-1.5px;line-height:1.23;margin:18px 0 22px}.hero p{font-size:20px;color:#c0cee3;margin:0 auto;max-width:780px}.eyebrow{font-size:13px;letter-spacing:3px}.hero-meta{justify-content:center;font-size:15px;gap:24px;margin-top:30px}.hero-meta span+span{padding-left:24px}
main{display:flex;flex-direction:column;gap:36px;max-width:1176px;padding:0 28px;margin:0 auto;align-items:stretch}.input-panel{padding:38px 48px}.input-heading{text-align:center}.section-label{font-size:14px;letter-spacing:1px;color:#a4b9da}h2{font-size:30px;line-height:1.4;margin:0 0 24px}h3{font-size:20px;line-height:1.5;margin:28px 0 12px}.type-switch{max-width:390px;margin:0 auto;border-radius:15px;padding:5px}.type-switch button{font-size:17px;padding:12px 20px;border-radius:11px}#typeHint{text-align:center;margin:14px auto 24px;font-size:16px}.hint{font-size:15px;line-height:1.8}.upload{max-width:100%;padding:28px;margin:0 auto 12px;border-radius:20px;min-height:190px;justify-content:center;background:linear-gradient(110deg,#9abaff09,#a4a0e709)}.upload-icon{font-size:36px}.upload strong{font-size:21px;margin:7px 0}.upload>span:not(.upload-icon){font-size:14px}.limits{margin-top:13px}#filemeta{text-align:center}.brief-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.brief-grid:has(#aiFields[hidden]){grid-template-columns:1fr}label:not(.upload){font-size:17px;margin:24px 0 10px}label span{font-size:14px}input,textarea{font-size:17px;line-height:1.8;padding:16px;border-radius:14px}.brief-grid textarea{height:174px}.settings-row{max-width:100%;margin:auto}button{font-size:17px;padding:13px 22px;border-radius:12px}.primary{justify-content:center;gap:30px;max-width:380px;margin:28px auto 0;padding:16px 24px;font-size:18px;border-radius:14px}.privacy{max-width:790px;text-align:center;margin:20px auto 0;font-size:14px;line-height:1.9}#status,#error{text-align:center;font-size:16px}progress{display:block;max-width:640px;margin:20px auto 0}.workspace{width:100%;scroll-margin-top:30px}#input,#versions{scroll-margin-top:30px}.glass{border-radius:28px;background:linear-gradient(145deg,#2b385293,#161e33bb);box-shadow:0 22px 70px #0002,inset 0 1px 0 #ffffff08}
.empty{padding:44px;text-align:center}.empty h2{font-size:34px}.intro{font-size:18px;max-width:760px;margin:0 auto}.dimensions{grid-template-columns:repeat(4,1fr);gap:22px;margin:32px 0}.dimensions b{font-size:15px}.dimensions h3{font-size:18px}.dimensions p{font-size:15px}.workflow{justify-content:center;font-size:17px;gap:24px}.output,.result-head{padding:40px 48px;margin-bottom:28px}.output>h2,.result-head>.section-label{text-align:center}.result-top{justify-content:center;align-items:center;flex-wrap:wrap;margin-bottom:24px}.result-top h2{margin:0}.badge{font-size:15px;padding:6px 12px;border-radius:8px}video{max-height:580px;border-radius:18px;display:block;margin:auto}#coverage{text-align:center;margin:20px auto 0;max-width:880px}.event{grid-template-columns:150px minmax(0,1fr);gap:26px;padding:24px 0}.event button{font-size:15px;padding:9px}.event p,.diagnostic p{font-size:18px;line-height:1.85}.event small{font-size:14px}.diagnostic{padding:26px 0}.diagnostic h3{font-size:21px}.diagnostic h3 span{font-size:14px}.priority{font-size:23px;line-height:1.8}ul{font-size:18px;line-height:1.85}pre{font-size:18px;padding:26px}.actions{justify-content:center;gap:16px}.notice{font-size:15px;line-height:1.8}summary{font-size:17px}#motion,#hypothesis{font-size:16px;line-height:1.85}.history{margin:0;padding:34px 44px;text-align:center;border-top:1px solid var(--line)}.history h3{font-size:24px}.historybtn{font-size:16px;text-align:center;padding:16px;line-height:1.7}footer{text-align:center;font-size:14px;margin:40px auto;padding:0 20px 24px}.output #export{display:block;margin:20px auto 0}
@media(max-width:1100px){header{padding:22px 26px;grid-template-columns:1fr auto}.connection{display:none}.hero{margin:0 24px 32px}.hero-copy{padding:46px 28px}.hero p{max-width:650px}.dimensions{grid-template-columns:1fr 1fr}}
@media(max-width:740px){header{display:flex;flex-direction:column;gap:18px;padding:20px}.brand{font-size:21px}nav{gap:28px}nav a{font-size:15px}.hero{margin:0 14px 24px;min-height:370px;border-radius:24px}.hero-copy{padding:36px 20px}.hero h1{font-size:40px;letter-spacing:-1px}.hero p{font-size:17px;max-width:300px;line-height:1.8}.hero-meta{font-size:12px;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-meta span+span{padding-left:12px}.eyebrow{font-size:11px}main{padding:0 14px;gap:24px}.input-panel,.output,.result-head,.empty{padding:28px 22px}.input-heading h2{font-size:26px}.brief-grid{grid-template-columns:1fr;gap:0}.brief-grid textarea{height:150px}.upload{padding:24px 12px}.upload strong{font-size:19px}.type-switch button{font-size:16px}#typeHint{font-size:15px}h2{font-size:27px}h3{font-size:20px}.event{grid-template-columns:1fr;gap:10px}.event button{justify-self:center}.diagnostic h3{flex-wrap:wrap;justify-content:center;text-align:center;gap:8px 16px}.diagnostic p,.event p,ul,pre{font-size:17px}.diagnostic h3{font-size:20px}.priority{font-size:21px}.workflow{gap:10px;font-size:15px}.dimensions{gap:18px}.dimensions h3{font-size:17px}.empty h2{font-size:29px}.history{padding:28px 20px}.historybtn{font-size:15px}.result-top{gap:12px}.result-top h2{font-size:24px}.privacy{font-size:13px}.output #export{width:100%}}
.hero img{inset:0}.hero:after{background:linear-gradient(180deg,#0c152a80,#10192bd4 72%,#10192bef),radial-gradient(ellipse at center,#0c152a88,transparent)}
#payment{width:min(560px,calc(100vw - 28px));max-height:92vh;overflow:auto;background:#172238;color:#eaf0fb;border:1px solid #718db966;border-radius:28px;padding:34px;text-align:center;box-shadow:0 30px 120px #0008}#payment::backdrop{background:#040815b8;backdrop-filter:blur(9px)}#payment h2{font-size:27px;margin:10px 0}.close-payment{position:absolute;right:12px;top:10px;background:transparent;color:#cbd7ea;font-size:26px;padding:2px 12px}.pay-total{font:600 44px var(--title);margin:15px 0 4px}.qr-wrap{position:relative;width:260px;max-width:100%;margin:22px auto;background:white;line-height:0;border-radius:14px;overflow:hidden}.qr-wrap img{width:100%;display:block}.avatar-cover{position:absolute;left:42.6%;top:41.4%;width:14.8%;height:14.8%;display:flex;align-items:center;justify-content:center;background:#1677ff;color:#fff;border:3px solid white;border-radius:5px;font-size:11px;line-height:1;font-weight:600}.order-number{font-size:16px;overflow-wrap:anywhere;color:#c9d7ed}#payment p{font-size:15px;line-height:1.8}#payment .pay-total{font-size:44px}#payment a{color:#b0d8ff}#paymentStatus{color:#b9ddd5}#payment details{text-align:left;border-top:1px solid var(--line);margin-top:20px}#payment details p{font-size:14px}#payment .primary{font-size:17px}#payment .privacy{font-size:13px}

/* Optical stage */
body{background:#0b101b;background-image:radial-gradient(ellipse at 50% 10%,#24334755,transparent 55%)}
.hero{position:relative;isolation:isolate;height:720px;max-width:1440px;background:radial-gradient(ellipse at 50% 65%,#35475f55,transparent 58%),linear-gradient(160deg,#171f2c,#0c111d);border:1px solid #b5c9ed20;overflow:hidden}.hero:after{display:none}.hero>img{display:none}.hero-copy{position:relative;z-index:2;padding:44px 24px 0;pointer-events:none}.hero h1{font-size:clamp(38px,4.4vw,62px);margin:14px 0 18px}.hero h1 br{display:none}.hero h1 span{background:linear-gradient(110deg,#e1efff,#8eb9d1);background-clip:text}.hero p{font-size:18px;color:#bdcadd}.hero .hero-meta{margin-top:18px;font-size:13px;color:#aebed4}.eyebrow{color:#b4c7df;font-size:11px;letter-spacing:4px}
#optical-stage{position:absolute;inset:230px 0 28px;z-index:1;pointer-events:none}#optical-stage canvas{display:block;width:100%;height:100%}.stage-caption{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#b0bed1;font-size:12px;letter-spacing:2px;z-index:2}.stage-caption span{color:#779eb7;margin-right:14px}.motion-toggle{position:absolute;z-index:3;right:24px;bottom:21px;font-size:12px;padding:8px 13px;border:1px solid #b7cbea44;border-radius:8px;background:#172334;color:#d9e5f5}.motion-toggle:hover{background:#27384b}.motion-toggle:focus-visible{outline:2px solid #b8e8ff;outline-offset:4px}.no-webgl:after{content:'◉';display:block;font-size:180px;text-align:center;color:#769abb}
@media(max-width:740px){.hero{height:610px;margin:0 12px 24px}.hero-copy{padding:32px 18px 0}.hero h1{font-size:36px;line-height:1.3;max-width:350px;margin:18px auto}.hero h1 br{display:block}.hero p{font-size:16px;max-width:300px}.hero .hero-meta{font-size:11px;gap:8px}#optical-stage{inset:260px -25px 45px}.stage-caption{font-size:10px;bottom:65px}.motion-toggle{right:50%;transform:translateX(50%);bottom:18px}}

.type-switch{max-width:580px}.short-fields{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}select{width:100%;font:inherit;color:#eaf0fb;background:#172238;border:1px solid #647997;border-radius:12px;padding:14px}select:focus-visible{outline:2px solid #b8e8ff;outline-offset:3px}#shortResult{border-bottom:1px solid var(--line);padding-bottom:32px;margin-bottom:32px}#shortResult a{color:#b8dcff}#shortResult h3{text-align:left}@media(max-width:480px){.type-switch button{font-size:14px;padding:12px 9px}}