:root{--bg:#eef2f8;--surface:#f7f9fc;--surface-2:#fff;--text:#13203a;--muted:#6c7890;--line:rgba(112,132,166,.2);--blue:#1268f3;--blue-2:#0b4bc2;--cyan:#51b8ff;--red:#df3650;--shadow:18px 18px 44px rgba(38,58,98,.13),-14px -14px 34px rgba(255,255,255,.88);--shadow-in:inset 7px 7px 16px rgba(56,78,118,.12),inset -7px -7px 16px rgba(255,255,255,.9);--radius:26px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(circle at 5% 0,#fff 0,transparent 26rem),radial-gradient(circle at 95% 10%,#dceaff 0,transparent 30rem),linear-gradient(145deg,#f6f8fc,#e8edf5);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}body::before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.28) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.25) 1px,transparent 1px);background-size:36px 36px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.2),transparent 60%)}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit}.page-intro{position:fixed;inset:0;z-index:999;display:grid;place-items:center;background:linear-gradient(145deg,#f8fbff,#e5edf8);transition:opacity .45s ease,visibility .45s ease}.page-intro.hide{opacity:0;visibility:hidden}.intro-mark{display:flex;align-items:center;gap:18px;font-size:34px;font-weight:900;letter-spacing:-.05em;animation:introPop .7s cubic-bezier(.2,.8,.2,1)}.intro-mark img{width:72px;height:72px}.intro-line{position:absolute;left:50%;top:calc(50% + 68px);width:180px;height:4px;transform:translateX(-50%);border-radius:99px;background:#d6dfed;overflow:hidden}.intro-line::after{content:"";display:block;width:45%;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));animation:introLoad 1.1s ease-in-out infinite}@keyframes introPop{from{opacity:0;transform:translateY(16px) scale(.92)}to{opacity:1;transform:none}}@keyframes introLoad{from{transform:translateX(-110%)}to{transform:translateX(330%)}}.site-header{position:relative;z-index:3;max-width:1420px;margin:auto;padding:24px 32px 8px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand img{width:52px;height:52px;filter:drop-shadow(0 10px 15px rgba(20,76,170,.2))}.brand div{display:grid}.brand strong{font-size:24px;letter-spacing:-.05em}.brand span{font-size:12px;color:var(--muted);letter-spacing:.04em}.usage-pill{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:rgba(248,250,253,.75);border:1px solid rgba(255,255,255,.9);box-shadow:8px 8px 20px rgba(38,58,98,.1),-8px -8px 18px #fff;color:#526078;font-size:13px;font-weight:700;backdrop-filter:blur(14px)}.usage-dot{width:8px;height:8px;border-radius:50%;background:#27b678;box-shadow:0 0 0 5px rgba(39,182,120,.12)}.page-shell{position:relative;z-index:2;max-width:1420px;margin:auto;padding:30px 32px 80px}.hero{max-width:820px;margin:24px auto 38px;text-align:center}.hero-kicker{font-size:11px;font-weight:900;letter-spacing:.24em;color:var(--blue);text-transform:uppercase}.hero h1{margin:12px 0 14px;font-size:clamp(38px,6vw,72px);line-height:1.04;letter-spacing:-.065em;background:linear-gradient(120deg,#111d35 10%,#246ad6 60%,#0c4ebd);-webkit-background-clip:text;color:transparent}.hero p{margin:0 auto;color:var(--muted);font-size:clamp(15px,2vw,19px);line-height:1.8}.neo-card{background:linear-gradient(145deg,rgba(255,255,255,.82),rgba(239,244,251,.88));border:1px solid rgba(255,255,255,.9);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(14px)}.editor-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(390px,.92fr);gap:28px;align-items:stretch;perspective:1200px}.interactive-card{position:relative;transform-style:preserve-3d;transition:transform .18s ease,box-shadow .25s ease}.interactive-card::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;background:radial-gradient(circle at var(--mx,50%) var(--my,0%),rgba(255,255,255,.55),transparent 35%);opacity:.6}.interactive-card.pressed{box-shadow:var(--shadow-in);transform:scale(.995)!important}.upload-card,.prompt-card{padding:26px}.card-head{display:flex;align-items:center;gap:14px;margin-bottom:20px}.card-head .step{width:44px;height:44px;display:grid;place-items:center;border-radius:15px;background:linear-gradient(145deg,#e8f0ff,#fff);color:var(--blue);font-size:12px;font-weight:900;box-shadow:6px 6px 14px rgba(55,82,130,.11),-6px -6px 14px #fff}.card-head h2{margin:0;font-size:22px;letter-spacing:-.03em}.card-head p{margin:5px 0 0;color:var(--muted);font-size:13px}.drop-zone{position:relative;display:grid;place-items:center;min-height:520px;aspect-ratio:var(--image-ratio,4/3);max-height:680px;border:1px dashed rgba(68,105,166,.35);border-radius:22px;background:linear-gradient(145deg,rgba(255,255,255,.7),rgba(226,234,246,.78));box-shadow:var(--shadow-in);overflow:hidden;transition:border-color .2s,transform .2s,background .2s}.drop-zone:hover,.drop-zone.dragging{border-color:var(--blue);transform:translateY(-2px);background:linear-gradient(145deg,#fff,#edf4ff)}.drop-zone.has-image{background:#101827;border-style:solid;aspect-ratio:var(--image-ratio,4/3);min-height:360px}.empty-preview{text-align:center;display:grid;gap:10px;padding:30px;color:var(--muted)}.empty-preview strong{color:var(--text);font-size:18px}.empty-preview small{line-height:1.6}.upload-orb{width:72px;height:72px;margin:0 auto 8px;display:grid;place-items:center;border-radius:24px;background:linear-gradient(145deg,#fff,#dce8fb);box-shadow:10px 10px 24px rgba(47,76,125,.14),-10px -10px 22px #fff;color:var(--blue);font-size:42px;font-weight:200}.image-preview{width:100%;height:100%;object-fit:contain;display:block}.file-meta{margin-top:14px;display:flex;align-items:center;justify-content:space-between;gap:14px}.file-meta>div{min-width:0;display:grid;gap:3px}.file-meta strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta span{font-size:12px;color:var(--muted)}.field-label{display:block;margin-bottom:9px;font-size:13px;font-weight:850}.prompt-card textarea,.prompt-card input{width:100%;border:0;outline:none;color:var(--text);background:rgba(244,247,252,.9);box-shadow:var(--shadow-in);border-radius:18px}.prompt-card textarea{min-height:270px;padding:18px;resize:vertical;line-height:1.75}.prompt-card textarea:focus,.prompt-card input:focus{box-shadow:inset 6px 6px 14px rgba(54,78,118,.12),inset -6px -6px 14px #fff,0 0 0 3px rgba(18,104,243,.13)}.field-foot{display:flex;justify-content:space-between;gap:10px;margin:9px 2px 20px;color:var(--muted);font-size:11px}.field-foot b{color:var(--blue)}.card-code-box{margin:0 0 18px;padding:13px 14px;border-radius:17px;background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.88)}.card-code-box summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;font-weight:850}.card-code-box summary::-webkit-details-marker{display:none}.card-code-box summary small{color:var(--muted);font-size:11px;font-weight:500}.card-code-row{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:13px}.card-code-row input{height:44px;padding:0 13px;text-transform:uppercase;letter-spacing:.04em}.card-status{min-height:18px;margin:8px 2px 0;color:var(--muted);font-size:12px}.card-status.ok{color:#13845b}.card-status.error{color:#c72d46}.soft-button{border:0;border-radius:13px;padding:10px 14px;background:linear-gradient(145deg,#fff,#e8edf5);box-shadow:5px 5px 13px rgba(43,65,103,.11),-5px -5px 13px #fff;color:#34435f;font-size:12px;font-weight:800;transition:transform .15s,box-shadow .15s}.soft-button:active{transform:translateY(1px);box-shadow:var(--shadow-in)}.smart-button{position:relative;isolation:isolate;overflow:hidden;width:100%;min-height:58px;border:0;border-radius:18px;display:flex;align-items:center;justify-content:center;gap:10px;color:#fff;font-size:17px;font-weight:900;letter-spacing:.02em;background:linear-gradient(120deg,#0b52cf,#147cf8 55%,#44b6ff);box-shadow:0 16px 30px rgba(12,94,220,.28),inset 0 1px 0 rgba(255,255,255,.3);transition:transform .18s,box-shadow .18s}.smart-button:hover{transform:translateY(-2px);box-shadow:0 20px 36px rgba(12,94,220,.34),inset 0 1px 0 rgba(255,255,255,.3)}.smart-button:active{transform:translateY(1px) scale(.995);box-shadow:inset 0 5px 16px rgba(0,34,105,.28)}.button-icon{font-size:22px}.ripple{position:absolute;border-radius:50%;background:rgba(255,255,255,.35);transform:scale(0);animation:ripple .65s ease-out;pointer-events:none}@keyframes ripple{to{transform:scale(4);opacity:0}}.privacy-note{margin:13px 8px 0;color:var(--muted);font-size:11px;line-height:1.65;text-align:center}.inline-error{margin-top:14px;padding:12px 14px;border:1px solid #ffc7cf;border-radius:14px;background:#fff0f2;color:#af2038;font-size:13px;line-height:1.6}.guide-section{margin-top:28px;padding:26px}.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:18px}.section-title h2{margin:6px 0 0;font-size:24px;letter-spacing:-.04em}.section-title p{margin:7px 0 0;color:var(--muted);font-size:13px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.guide-grid>div{display:grid;grid-template-columns:auto 1fr;grid-template-areas:"num title" "num text";column-gap:12px;padding:18px;border-radius:18px;background:rgba(255,255,255,.55);box-shadow:inset 0 0 0 1px rgba(255,255,255,.8)}.guide-grid b{grid-area:num;width:34px;height:34px;display:grid;place-items:center;border-radius:12px;background:#e6efff;color:var(--blue)}.guide-grid strong{grid-area:title}.guide-grid span{grid-area:text;color:var(--muted);font-size:12px;margin-top:4px}.history-section{margin-top:34px}.history-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.history-empty{grid-column:1/-1;padding:34px;text-align:center;border:1px dashed rgba(94,116,153,.3);border-radius:20px;color:var(--muted);background:rgba(255,255,255,.38)}.history-item{overflow:hidden;border-radius:21px;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);box-shadow:10px 10px 25px rgba(38,58,98,.1),-8px -8px 18px rgba(255,255,255,.75);transition:transform .2s,box-shadow .2s}.history-item:hover{transform:translateY(-4px);box-shadow:14px 17px 30px rgba(38,58,98,.14),-8px -8px 20px #fff}.history-thumb{position:relative;aspect-ratio:4/3;background:#101827;overflow:hidden}.history-thumb img{width:100%;height:100%;object-fit:cover;display:block}.history-expired{position:absolute;inset:0;display:none;place-items:center;background:#e8edf5;color:var(--muted);font-size:12px}.history-thumb.expired .history-expired{display:grid}.history-meta{padding:13px}.history-meta strong{display:block;font-size:13px}.history-meta span{display:block;margin-top:3px;color:var(--muted);font-size:11px}.history-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:11px}.history-actions button,.history-actions a{border:0;border-radius:11px;padding:9px;text-align:center;text-decoration:none;background:#edf3ff;color:#1459ca;font-size:11px;font-weight:850}.generation-overlay{position:fixed;inset:0;z-index:500;display:grid;place-items:center;padding:20px;background:rgba(225,233,245,.76);backdrop-filter:blur(14px)}.generation-overlay[hidden]{display:none}.generation-dialog{width:min(480px,94vw);padding:34px;text-align:center}.loader-scene{position:relative;width:110px;height:110px;margin:0 auto 20px;display:grid;place-items:center}.loader-scene img{width:58px;height:58px;filter:drop-shadow(0 12px 18px rgba(22,80,170,.25));animation:logoPulse 1.8s ease-in-out infinite}.loader-orbit{position:absolute;inset:0;border:3px solid rgba(18,104,243,.13);border-top-color:var(--blue);border-right-color:#55bbff;border-radius:50%;animation:spin 1.1s linear infinite}.loader-orbit::after{content:"";position:absolute;width:13px;height:13px;border-radius:50%;background:var(--red);right:8px;top:12px;box-shadow:0 0 18px rgba(223,54,80,.5)}@keyframes spin{to{transform:rotate(360deg)}}@keyframes logoPulse{50%{transform:scale(1.06)}}.generation-dialog h2{margin:0;font-size:22px}.generation-dialog p{margin:9px 0 20px;color:var(--muted);font-size:13px;line-height:1.65}.progress-track{height:10px;border-radius:99px;background:#dbe3ef;box-shadow:var(--shadow-in);overflow:hidden}.progress-bar{height:100%;width:8%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--cyan));box-shadow:0 0 16px rgba(18,104,243,.35);transition:width .5s ease}.generation-dialog>span{display:block;margin-top:9px;color:var(--blue);font-size:12px;font-weight:850}.image-modal{position:fixed;inset:0;z-index:600;display:grid;place-items:center;padding:40px;background:rgba(4,10,23,.9);backdrop-filter:blur(12px)}.image-modal[hidden]{display:none}.image-modal img{max-width:94vw;max-height:86vh;object-fit:contain;border-radius:16px;box-shadow:0 30px 80px rgba(0,0,0,.5)}.modal-close{position:absolute;top:20px;right:24px;width:46px;height:46px;border:1px solid rgba(255,255,255,.2);border-radius:50%;background:rgba(255,255,255,.1);color:#fff;font-size:27px}.modal-download{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);padding:12px 20px;border-radius:14px;background:#fff;color:#174b9b;text-decoration:none;font-size:13px;font-weight:900}.notice-card{padding:26px;text-align:center;border-radius:22px;background:#fff4da;color:#8f5b00;box-shadow:var(--shadow)}body.maintenance .history-section,body.maintenance .guide-section{display:none}@media(max-width:1080px){.editor-grid{grid-template-columns:1fr}.drop-zone{min-height:420px}.history-list{grid-template-columns:repeat(3,1fr)}}@media(max-width:760px){.site-header,.page-shell{padding-left:17px;padding-right:17px}.site-header{padding-top:16px}.brand img{width:44px;height:44px}.brand strong{font-size:20px}.brand span{font-size:10px}.usage-pill{padding:8px 10px;font-size:11px}.hero{margin:26px auto 30px}.hero h1{font-size:42px}.upload-card,.prompt-card,.guide-section{padding:18px;border-radius:21px}.drop-zone{min-height:300px}.guide-grid{grid-template-columns:1fr}.history-list{grid-template-columns:repeat(2,1fr)}.section-title{align-items:flex-start;flex-direction:column}.card-code-box summary{align-items:flex-start;flex-direction:column;gap:3px}}@media(max-width:480px){.brand span{display:none}.usage-pill{max-width:170px}.hero h1{font-size:36px}.card-head h2{font-size:19px}.drop-zone{min-height:260px}.prompt-card textarea{min-height:220px}.history-list{grid-template-columns:1fr}.card-code-row{grid-template-columns:1fr}.image-modal{padding:14px}.generation-dialog{padding:26px 20px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}