:root{font-family:"Microsoft YaHei","Segoe UI",sans-serif;color:#1e2b34;background:#f3f5f6;font-size:16px;--mint:#5fe2c5;--ink:#10212a}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer}header{height:86px;border-bottom:1px solid #dce2e5;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;background:#fff}.brand{font-size:23px;font-weight:800;display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-icon{background:var(--ink);color:var(--mint);border-radius:11px;width:36px;height:36px;text-align:center;font-size:31px;line-height:32px}.edition{font-size:12px;color:#647481;font-weight:400;border-left:1px solid #dce2e5;padding-left:16px;margin-left:8px}.quiet{background:none;border:0;color:#465864;font-size:14px;padding:8px}#connection{margin-left:10px;font-size:12px;color:#6b777d;background:#eef1f2;padding:5px 9px;border-radius:5px}main{max-width:1440px;padding:42px 5vw 36px;margin:auto}.heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.eyebrow{font-size:12px;letter-spacing:3px;color:#57737d}h1{font-size:32px;letter-spacing:-1px;margin:9px 0 10px}p{color:#6b7b85;line-height:1.7;margin:0}h2{font-size:17px;margin:0;font-weight:600}.pill{background:#e5ebe9;color:#37584d;padding:9px 14px;border-radius:30px;font-size:13px}.workspace{display:grid;grid-template-columns:minmax(340px,1fr) minmax(360px,1.14fr);gap:25px;align-items:start}.editor,.preview-panel{background:white;border:1px solid #dfe5e8;border-radius:16px;padding:26px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:21px}.step{font-size:12px;letter-spacing:1px;color:#7c8a94;margin-right:10px}.section-head select{width:auto;font-size:12px;padding:8px;background:#f7f9fa}.editor textarea{width:100%;min-height:235px;resize:vertical;border:1px solid #dce3e6;border-radius:9px;padding:18px;font-size:15px;line-height:1.9;background:#fafcfc;color:#253640}.editor textarea:focus{outline:2px solid #8bdaca;border-color:transparent}.text-meta{display:flex;justify-content:space-between;gap:12px;margin-top:9px;font-size:12px;color:#81909a}.divider{height:1px;background:#e9edef;margin:23px 0}.style-card{margin-top:19px;border:1px solid #b2dace;background:#f4faf7;padding:15px;border-radius:9px;display:flex;align-items:center;gap:14px}.style-card strong{font-size:14px}.style-card p{font-size:12px;margin-top:5px}.mini-diagram{background:#17272e;border-radius:5px;width:70px;height:45px;display:flex;align-items:center;justify-content:center;gap:5px}.mini-diagram i{height:16px;width:16px;border:1px solid #5fe2c5}.mini-diagram b{color:#5fe2c5;font-size:12px}.check{margin-left:auto;color:#26876c}fieldset{padding:0;border:0;margin:21px 0}legend,label[for]{font-size:14px;margin-bottom:9px;display:block}.ratios{display:grid;grid-template-columns:1fr 1fr;gap:10px}.ratios label{position:relative;cursor:pointer}.ratios input{position:absolute;opacity:0;width:1px}.ratios span{display:flex;align-items:center;justify-content:center;gap:9px;border:1px solid #dce3e6;padding:13px;border-radius:7px;font-size:14px}.ratios input:checked+span{border-color:#278a73;background:#f0f9f6;color:#246b5b}.ratios input:focus-visible+span{outline:2px solid #278a73}.ratios small{color:#788c92;font-size:12px}.rect{display:inline-block;border:1.5px solid currentColor;border-radius:2px}.landscape{width:21px;height:13px}.portrait{width:12px;height:20px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:23px;align-items:center}select,input[type=password],input:not([type]){width:100%;padding:12px;border-radius:7px;border:1px solid #dce3e6;background:white;font-size:14px}output{float:right;font-size:13px;color:#566e78}input[type=range]{width:100%;accent-color:#258b72;height:34px}.primary{width:100%;background:var(--ink);color:white;border:none;border-radius:8px;padding:16px;font-size:16px;font-weight:600;margin-top:24px;transition:background .2s}.primary:hover{background:#214537}.primary:disabled{cursor:wait;opacity:.55}.cost{text-align:center;font-size:12px;margin-top:10px}.notice{font-size:13px;margin-top:10px;color:#a34539}.preview-label{font-size:12px;color:#86969e}.stage{aspect-ratio:16/9;width:100%;overflow:hidden;border-radius:8px;background:#0d141c;display:flex;align-items:center;justify-content:center}.stage.portrait-stage{aspect-ratio:9/16;max-width:300px;margin:auto}.placeholder{width:100%;height:100%;background:radial-gradient(ellipse at 90% 5%,#213d43 0,transparent 55%),#0c141b;color:white;padding:8%;position:relative}.slide-kicker{font-size:clamp(10px,1vw,13px);color:#a5b9c0}.placeholder h3{font-size:clamp(22px,2.7vw,42px);line-height:1.25;margin:6% 0;letter-spacing:-1px}.placeholder h3 span{color:var(--mint)}.demo-flow{display:flex;align-items:center;gap:10px;font-size:clamp(9px,.9vw,13px)}.demo-flow div{padding:9px;border:1px solid #426166;background:#1c3138;border-radius:4px}.demo-flow b{color:#5fe2c5}.slide-rule{width:38px;height:3px;background:var(--mint);margin-top:6%}.slide-footer{position:absolute;right:8%;bottom:8%;font-size:10px;color:#718993}video{width:100%;height:100%;object-fit:contain}.explanation{margin-top:30px;padding-top:24px;border-top:1px solid #e6ebed}.explanation>span{font-size:14px;color:#526771}.explanation ol{display:grid;grid-template-columns:1fr 1fr 1fr;list-style:none;padding:0;gap:12px;margin:22px 0}.explanation b{font-size:15px}.explanation p{font-size:12px;margin-top:7px}.footnote{font-size:12px;color:#8a979f}.progress-wrap{margin:24px 0}.progress-title{display:flex;justify-content:space-between;font-size:14px}progress{width:100%;height:8px;accent-color:#269b7a;margin:15px 0 8px}.progress-wrap p{font-size:12px}.result{display:flex;gap:10px;justify-content:space-between;align-items:center;margin-top:23px}.result strong{font-size:15px}.result p{font-size:12px;margin-top:5px}.download{white-space:nowrap;text-decoration:none;border-radius:6px;padding:11px 16px;background:#d6f6eb;color:#226d58;font-size:14px}dialog{border:1px solid #dce3e6;border-radius:15px;padding:28px;width:min(510px,92vw);box-shadow:0 30px 100px #0003}dialog::backdrop{background:#0d202b80;backdrop-filter:blur(4px)}dialog p{font-size:14px;margin-bottom:18px}dialog input{margin-bottom:20px}dialog .primary{margin-top:4px}dialog small{color:#86969e}#config-message{margin:10px 0 0;color:#a34539}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}[hidden]{display:none!important}@media(max-width:900px){.workspace{grid-template-columns:1fr}.heading .pill{display:none}.preview-panel{order:2}.placeholder h3{font-size:40px}.demo-flow{font-size:13px}}@media(max-width:520px){header{padding:0 18px}.edition{display:none}main{padding:28px 16px}h1{font-size:27px}.editor,.preview-panel{padding:20px}.section-head{flex-wrap:wrap}.two-col{gap:14px}.text-meta{font-size:11px}.explanation ol{grid-template-columns:1fr}.placeholder h3{font-size:30px}.demo-flow{font-size:10px;gap:6px}.result{flex-wrap:wrap}}

.background-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:10px}.background-choice{border:1px solid #33444a;border-radius:12px;background:#142329;color:#e9f2ef;padding:7px;text-align:left;cursor:pointer;font:inherit;font-size:12px;display:flex;flex-direction:column;gap:7px}.background-choice.selected{border-color:#5fe2c5;box-shadow:0 0 0 2px #5fe2c533}.background-swatch{display:block;width:100%;height:45px;border-radius:7px;background-size:cover;box-shadow:inset 0 0 0 1px #ffffff22}.custom-swatch{display:grid;place-items:center;background:#22363b;color:#a4d9ce;font-size:25px}.background-message{font-size:12px;color:#94aaa8;line-height:1.5;margin:9px 0 0}@media(max-width:650px){.background-options{grid-template-columns:repeat(3,minmax(0,1fr))}}
.primary:disabled{cursor:default;opacity:1;background:#284d48;color:#fff}.primary.is-working .button-spinner{display:inline-block}.button-spinner,.working-icon{display:none;width:17px;height:17px;border:2px solid #ffffff70;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;vertical-align:-3px;margin-right:9px}.progress-wrap{padding:18px;border:1px solid #dce9e5;border-radius:12px;background:#f8fcfa}.progress-banner{display:flex;align-items:center;gap:12px;margin-bottom:18px}.progress-banner .working-icon{display:block;width:23px;height:23px;border-color:#b7dcd1;border-top-color:#258b72;margin:0;flex:none}.progress-banner strong{font-size:15px}.progress-banner p{font-size:12px;margin-top:3px}.progress-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;padding:0;margin:0 0 18px;list-style:none}.progress-steps li{position:relative;text-align:center;padding:27px 4px 0;color:#9aa8a8;font-size:11px;line-height:1.4}.progress-steps li:before{content:'';position:absolute;top:7px;left:50%;transform:translateX(-50%);width:11px;height:11px;border:2px solid #d3ddda;border-radius:50%;background:#fff;z-index:1}.progress-steps li:not(:last-child):after{content:'';position:absolute;top:12px;left:calc(50% + 9px);width:calc(100% - 18px);height:2px;background:#dfe7e4}.progress-steps li.done{color:#37816e}.progress-steps li.done:before{border-color:#39a78a;background:#39a78a;box-shadow:inset 0 0 0 2px #fff}.progress-steps li.done:after{background:#75ccb5}.progress-steps li.current{color:#173d35;font-weight:700}.progress-steps li.current:before{border-color:#269b7a;box-shadow:0 0 0 4px #269b7a22}.progress-title{font-size:13px}.progress-title strong{font-weight:600;color:#334b4c}#percent{font-variant-numeric:tabular-nums;color:#617873}.progress-hint{font-size:12px;background:#edf6f2;border-radius:7px;padding:10px 12px;color:#52736b}.failure-card{display:flex;align-items:center;gap:12px;margin:20px 0;padding:16px;border:1px solid #f0d8d2;background:#fff9f7;border-radius:11px}.failure-icon{display:grid;place-items:center;flex:none;width:27px;height:27px;border-radius:50%;background:#f8e2dc;color:#a34539;font-weight:700}.failure-copy{flex:1}.failure-copy strong{font-size:14px;color:#743e36}.failure-copy p{font-size:12px;margin-top:4px}.retry-button{white-space:nowrap;border:0;border-radius:7px;background:#173e36;color:#fff;padding:10px 14px;font-size:13px;cursor:pointer}.retry-button:hover{background:#286251}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:520px){.progress-wrap{padding:14px}.progress-steps li{font-size:10px}.failure-card{align-items:flex-start;flex-wrap:wrap}.retry-button{margin-left:39px}}
.preview-panel:has(#progress-wrap:not([hidden])) #stage{display:none}.preview-panel:has(#progress-wrap:not([hidden])) #progress-wrap{display:flex;min-height:245px;flex-direction:column;justify-content:center}
.editor h2 small{font-size:12px;font-weight:400;color:#8a979f;margin-left:8px}#video-title{min-height:82px;resize:none;line-height:1.55}.editor textarea::placeholder{color:#9aa7ae}.history{margin-top:28px;padding-top:22px;border-top:1px solid #e6ebed}.history .section-head{margin-bottom:8px}.history-policy{font-size:12px;color:#48675e}.history-local{font-size:11px;color:#8a979f;margin-top:2px}.history-list{max-height:390px;overflow:auto;margin-top:14px;display:grid;gap:8px}.history-item{display:flex;align-items:center;gap:8px;padding:11px 12px;border:1px solid #e0e8e7;border-radius:9px;background:#fafcfc}.history-info{min-width:0;flex:1;display:grid;gap:3px}.history-info strong{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-info span{font-size:11px;color:#84929a}.history-item button,.history-item a{flex:none;border:0;border-radius:6px;padding:7px 10px;background:#e6f4f0;color:#246b5b;font-size:12px;text-decoration:none;cursor:pointer}.history-item button:hover,.history-item a:hover{background:#d0ede3}@media(max-width:520px){.history-info span{font-size:10px}.history-item{flex-wrap:wrap}}
.title-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:19px;margin-top:6px;font-size:12px;color:#81909a}.title-meta #title-error{color:#c43b34;font-weight:600}
.voice-picker{display:flex;gap:8px;align-items:stretch}.voice-picker select{min-width:0;flex:1}.voice-preview{flex:none;border:1px solid #b9d8ce;border-radius:7px;background:#eaf7f1;color:#246b5b;padding:0 12px;font-size:13px;font-weight:600}.voice-preview:hover{background:#d9efe5}.voice-preview:disabled{opacity:.65;cursor:wait}.voice-preview-status{min-height:17px;margin-top:5px;font-size:11px;color:#678179}
.cancel-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:14px}.cancel-row span{font-size:12px;color:#8d5b38}.cancel-button{border:1px solid #d8b7a4;border-radius:7px;background:#fff7f1;color:#8a4631;padding:9px 14px;font-size:13px;font-weight:600}.cancel-button:hover{background:#fceade}.cancel-button:disabled{opacity:.55;cursor:wait}
.header-actions{display:flex;align-items:center;gap:12px}#wallet-button{border:1px solid #cce3d9;border-radius:8px;background:#eff9f4;color:#27634e}#wallet-button strong{margin-left:5px}.wallet-transactions{display:grid;gap:8px;max-height:360px;overflow:auto}.wallet-row{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:10px;border:1px solid #e2e9e6;border-radius:7px;font-size:13px}.wallet-row small{grid-column:1;color:#81908a}.wallet-row strong{grid-column:2;grid-row:1/3;align-self:center}#wallet-dialog p{font-size:12px}@media(max-width:520px){.header-actions{gap:4px}#wallet-button{font-size:12px;padding:7px}}
.auth-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.auth-actions .primary{margin-top:4px}#auth-message{color:#a34539;margin:12px 0 0}#auth-dialog label{display:block;font-size:13px;margin:12px 0 6px}#auth-dialog input{margin:0}#auth-dialog>form>p{font-size:12px;margin:10px 0}@media(max-width:520px){#account-button{max-width:95px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#wallet-button{white-space:nowrap}}
.trial-metrics{margin-top:24px;padding-top:20px;border-top:1px solid #e6ebed}.trial-metrics .section-head{margin-bottom:12px}.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.metric-grid>div{display:grid;gap:4px;padding:13px 9px;background:#f2f8f6;border-radius:8px}.metric-grid strong{font-size:19px;color:#1a5b48}.metric-grid span{font-size:11px;color:#6c817a}.trial-metrics #metric-detail{margin-top:9px;line-height:1.5}@media(max-width:520px){.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:680px){header{height:auto;min-height:76px;flex-wrap:wrap;gap:8px;padding:12px 4vw}.edition{display:none}.header-actions{width:100%;justify-content:space-between;flex-wrap:wrap;gap:3px}.header-actions .quiet{padding:6px 4px}}
.home-ad{margin-top:24px}.home-ad button{width:100%;min-height:96px;border:1px solid #367565;border-radius:14px;padding:20px 24px;background:linear-gradient(110deg,#102c2b,#195d50 75%,#238d76);color:#f3fff9;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;cursor:pointer;box-shadow:0 10px 25px #10443718}.home-ad button:not(:disabled):hover{background:linear-gradient(110deg,#174038,#237460 75%,#2a9b80)}.home-ad button:disabled{cursor:default}.home-ad #ad-text{font-size:19px;font-weight:700;line-height:1.45}.home-ad #ad-cta{flex:none;font-size:13px;color:#c0ecdd;white-space:nowrap}#ad-dialog{width:min(760px,92vw);max-height:90dvh;padding:18px;background:#fff}.ad-dialog-head{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:14px}.ad-dialog-head strong{font-size:16px}.ad-dialog-head button{border:0;background:transparent;font-size:28px;line-height:1;color:#455b58;padding:2px 8px}#ad-image{display:block;max-width:100%;max-height:75dvh;margin:auto;object-fit:contain;border-radius:8px}@media(max-width:520px){.home-ad button{min-height:88px;padding:16px;align-items:flex-start;flex-direction:column;gap:7px}.home-ad #ad-text{font-size:16px}.home-ad #ad-cta{font-size:12px}}
.heading{position:relative;isolation:isolate;overflow:hidden;align-items:flex-start;gap:28px;padding:38px 42px;border:1px solid #2d6258;border-radius:24px;background:radial-gradient(circle at 88% 14%,#4ac6a642,transparent 32%),linear-gradient(120deg,#10282d 5%,#16453f 58%,#1d6555 100%);box-shadow:0 18px 38px #113a3530,0 2px 6px #0c33271a}.heading::before{content:"";position:absolute;right:-60px;bottom:-180px;width:410px;height:410px;border:1px solid #b9ffdf30;border-radius:50%;box-shadow:0 0 0 62px #b9ffdf0b,0 0 0 124px #b9ffdf08;pointer-events:none;z-index:-1}.heading::after{content:"";position:absolute;top:0;left:11%;width:180px;height:1px;background:linear-gradient(90deg,transparent,#a5ffda55,transparent);pointer-events:none}.heading>div{position:relative;z-index:1;min-width:0;max-width:850px}.heading .eyebrow{display:inline-flex;align-items:center;gap:10px;color:#96ead3;font-weight:700;letter-spacing:2.4px}.heading .eyebrow::before{content:"";width:21px;height:1px;background:#7ee5c8}.heading h1{color:#fff;font-size:clamp(28px,3vw,38px);line-height:1.35;letter-spacing:-.02em;margin:17px 0 15px}.heading p{max-width:68ch;color:#d2e5df;font-size:15px;line-height:1.85}.heading .pill{position:relative;z-index:1;flex:none;background:#d7fff018;border:1px solid #d7fff044;color:#d8fff0;backdrop-filter:blur(8px)}@media(max-width:520px){.heading{padding:25px 22px 28px;border-radius:20px;margin-bottom:22px;box-shadow:0 12px 28px #113a3524}.heading::before{right:-115px;bottom:-128px;width:280px;height:280px;box-shadow:0 0 0 40px #b9ffdf0b,0 0 0 80px #b9ffdf08}.heading .eyebrow{font-size:10px;letter-spacing:1.8px}.heading h1{font-size:26px;line-height:1.38;margin:16px 0 13px}.heading p{font-size:14px;line-height:1.8}}
.model-price{display:inline-block;margin-left:7px;color:#207b66;background:#e1f3eb;border-radius:999px;padding:3px 8px;font-size:11px;font-weight:600;white-space:nowrap}

#auth-form{position:relative}#auth-form .auth-close{position:absolute;top:-4px;right:-4px;width:36px;height:36px;border:0;border-radius:8px;background:transparent;color:#65737b;font-size:26px;line-height:1;cursor:pointer}#auth-form .auth-close:hover,#auth-form .auth-close:focus-visible{background:#eef2f1;color:#172a29}
.queue-status{margin-top:22px;padding:10px 12px;border-radius:8px;background:#eff8f4;color:#326856;font-size:12px}.queue-status+.primary{margin-top:10px}.active-jobs{display:grid;gap:7px;margin:16px 0}.active-job{width:100%;text-align:left;border:1px solid #dce9e5;background:#f8fcfa;border-radius:8px;padding:10px 12px;color:#385d53;font-size:12px;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.active-job.selected{border-color:#48ac91;background:#eaf7f1;font-weight:600}

.video-modes{display:grid;grid-template-columns:1fr 1fr;gap:10px}.video-modes .style-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;cursor:pointer;font:inherit;text-align:left;border:1px solid #d8e6e0;background:#fafcfb;color:#173e33;padding:16px;border-radius:12px}.video-modes .style-card.selected{border-color:#3a9d80;background:#edf8f3;box-shadow:0 0 0 1px #3a9d80}.video-modes small{font-size:12px;color:#657f76}.video-modes .model-price{display:block;margin-top:5px;font-size:12px}@media(prefers-reduced-motion:reduce){.background-swatch{background-image:none!important}}