:root{color:#172b3b;font-synthesis:none;background:#f5f7f9;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,sans-serif;font-weight:400}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}[hidden]{display:none!important}header{justify-content:space-between;align-items:center;max-width:1160px;height:94px;margin:auto;padding:0 32px;display:flex}.brand{letter-spacing:-.6px;color:inherit;align-items:center;gap:10px;font-size:22px;font-weight:650;text-decoration:none;display:flex}.live-icon{color:#3a718a;font-size:35px;line-height:1}.local-badge{color:#54716b;align-items:center;gap:7px;font-size:12px;display:flex}.local-badge i{background:#62a58a;border-radius:50%;width:6px;height:6px}main{max-width:1096px;margin:0 auto;padding:16px 32px 0}.intro{padding:35px 0 45px}.eyebrow{letter-spacing:2px;color:#698190;font-size:11px;font-weight:650}h1{letter-spacing:-2px;margin:20px 0;font-size:58px;font-weight:580;line-height:1.2}h1 em{color:#4d7d91;font-style:normal}.intro p{color:#73828b;margin-bottom:0;font-size:15px;line-height:1.9}.workspace{background:#fff;border:1px solid #e4eaee;border-radius:22px;overflow:hidden;box-shadow:0 12px 48px #163f5810}.drop{text-align:center;background:linear-gradient(150deg,#f8fafb,#fff);border:1px dashed #d1dfe5;border-radius:14px;margin:18px;padding:48px 20px;transition:all .2s}.drop.drag{background:#edf6fa;border-color:#4d7d91}.upload-icon{color:#638597;background:#fff;border:1px solid #d6e2e7;border-radius:16px;width:52px;height:52px;margin:0 auto 21px;font-size:33px;font-weight:300}.drop h2{margin:0 0 10px;font-size:21px;font-weight:550}.drop p{color:#86939c;margin:0 0 25px;font-size:14px}.primary{color:#fff;background:#25586f;border:0;border-radius:10px;justify-content:center;align-items:center;gap:28px;padding:14px 22px;font-size:14px;font-weight:550;transition:all .2s;display:inline-flex;box-shadow:0 4px 10px #25586f13}.primary:hover{background:#326f89}.drop small{color:#98a4ac;margin:21px 0 0;font-size:11px;display:block}.file-row{justify-content:space-between;align-items:center;gap:15px;padding:22px 28px;display:flex}.file-row strong{overflow-wrap:anywhere;font-size:14px;display:block}.file-row small{color:#84949d;margin-top:6px;font-size:12px;display:block}.text-button{color:#48758a;white-space:nowrap;background:0 0;border:0;padding:7px;font-size:12px}.text-button:hover{color:#163c52}.preview{background:#14212a;justify-content:center;max-height:420px;display:flex;position:relative;overflow:hidden}.preview video{width:100%;max-width:100%;max-height:420px;display:block}.preview-label{color:#dbe7ed;pointer-events:none;background:#14212a90;border-radius:5px;padding:5px 9px;font-size:10px;position:absolute;top:14px;left:18px}.edit-section{border-bottom:1px solid #edf0f2;margin:0 28px;padding:24px 0}.section-title{justify-content:space-between;align-items:center;display:flex}h2{margin:0 0 14px;font-size:15px;font-weight:600}.section-title h2{margin:0}.time-fields{align-items:center;gap:16px;margin-top:18px;display:flex}.time-fields label{color:#73858e;flex:1;font-size:11px}.time-fields input{color:#23485a;background:#fbfcfd;border:1px solid #dce4e8;border-radius:8px;outline:none;width:100%;margin-top:8px;padding:11px 12px;display:block}.time-fields input:focus{border-color:#5f8ba1}.duration{text-align:right;min-width:100px}.duration small{color:#87959d;margin-bottom:8px;font-size:11px;display:block}.duration strong{font-size:16px;font-weight:550}.hint{color:#8c9ba3;margin:12px 0 0;font-size:11px;line-height:1.7}.cover-section{align-items:center;gap:28px;display:flex}.cover-section>div{flex:1}.cover-section h2{margin-bottom:5px}input[type=range]{accent-color:#3d728b;width:100%;margin:18px 0 4px}.range-caption{color:#83949d;justify-content:space-between;align-items:center;font-size:11px;display:flex}.cover-section canvas{background:#edf1f3;border-radius:8px;width:154px;height:auto}.actions{justify-content:space-between;align-items:center;gap:12px;padding:24px 28px;display:flex}.actions>span{color:#7f919a;font-size:11px}#status{color:#486e81;background:#f0f6f8;padding:20px 28px;font-size:13px}#status.error{color:#a4513c;background:#fdf3ef}progress{accent-color:#477e94;width:100%;height:5px;margin-top:12px;display:block}.result{background:#f3f9f7;border-top:1px solid #e3edeb;flex-wrap:wrap;align-items:center;gap:16px;padding:26px 28px;display:flex}.success-icon{color:#548c76;background:#e1efe7;border-radius:50%;place-items:center;width:32px;height:32px;display:grid}.result>div:not(.individual){flex:1}.result h2{margin:0 0 6px;font-size:14px}.result p{color:#7b958b;margin:0;font-size:11px}.individual{justify-content:flex-end;gap:10px;width:100%;display:flex}.notes{grid-template-columns:1fr 1fr 1.3fr;gap:42px;margin:48px 0;display:grid}.note-number{letter-spacing:1px;color:#9cabb2;font-size:10px;font-weight:600}h3{margin:13px 0 8px;font-size:13px;font-weight:550}.notes p{color:#84949c;margin:0;font-size:11px;line-height:1.85}footer{color:#9aabb4;letter-spacing:1.5px;border-top:1px solid #e2e8ed;justify-content:space-between;gap:12px;padding:24px 0 32px;font-size:9px;display:flex}footer span{letter-spacing:0}button:focus-visible,a:focus-visible,input:focus-visible{outline-offset:3px;outline:2px solid #4385a3}@media (width>=960px){.intro{position:relative}.intro:after{content:"◎";color:#dce7ed;pointer-events:none;font-size:235px;font-weight:200;position:absolute;top:10px;right:67px;transform:rotate(-15deg)}}@media (width<=640px){header{height:75px;padding:0 20px}.brand{font-size:19px}.local-badge{font-size:10px}main{padding:0 18px}.intro{padding:25px 0 32px}h1{letter-spacing:-1px;font-size:43px}.intro p{font-size:13px}.drop{margin:12px;padding:38px 12px}.drop h2{font-size:18px}.drop p{font-size:12px}.file-row{padding:18px}.file-row strong{font-size:12px}.edit-section{margin:0 18px}.time-fields{gap:10px}.duration{min-width:75px}.cover-section{gap:15px}.cover-section canvas{width:95px}.actions{flex-wrap:wrap;padding:20px 18px}.actions>.primary{margin-left:auto}.primary{padding:13px 17px;font-size:13px}.notes{grid-template-columns:1fr;gap:22px;margin:32px 4px}.note-number{float:left;margin:3px 14px 0 0}.notes h3{margin:0 0 5px}.notes p{margin-left:30px}.result{padding:20px 18px}.result>.primary{width:100%}footer{letter-spacing:1px;flex-direction:column;font-size:8px}.desktop{display:none}}.mode-tabs{background:#e8eef2;border-radius:13px;gap:6px;width:fit-content;margin:10px 0 0;padding:5px;display:flex}.mode-tabs button{color:#607786;background:0 0;border:0;border-radius:9px;padding:12px 24px;font-size:14px}.mode-tabs button[aria-selected=true]{color:#25586f;background:#fff;box-shadow:0 2px 8px #163f5814}.collage-toolbar{border-bottom:1px solid #edf0f2;align-items:center;gap:18px;padding:22px 26px;display:flex}.collage-toolbar>span{color:#73858e;font-size:12px}.collage-layout{grid-template-columns:minmax(0,1fr) 310px;display:grid}.collage-stage{background:#eef2f5;min-width:0;padding:24px}.collage-canvas-wrap{background:repeating-conic-gradient(#dce4e9 0% 25%,#e7edf1 0% 50%) 50%/20px 20px;border-radius:10px;justify-content:center;align-items:center;min-height:280px;padding:14px;display:flex;position:relative;overflow:hidden}.collage-canvas-wrap canvas{touch-action:none;width:auto;max-width:100%;height:auto;max-height:560px;display:block;box-shadow:0 3px 20px #11222c30}.collage-canvas-wrap>p{text-align:center;color:#d1dce5;pointer-events:none;font-size:17px;line-height:2;position:absolute}.collage-canvas-wrap small{color:#95a9b8;font-size:12px}.collage-preview-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:12px;display:flex}.collage-preview-controls>span{color:#607786;font-variant-numeric:tabular-nums;font-size:12px}.collage-controls{background:#fff;max-height:840px;padding:0 22px;overflow:auto}.collage-group{border-bottom:1px solid #edf0f2;padding:20px 0}.collage-group:last-child{border:0}.collage-group label{color:#73858e;margin:12px 0;font-size:11px;display:block}.collage-group input:not([type=checkbox]):not([type=color]),.collage-group select{color:#263e4e;background:#fbfcfd;border:1px solid #dbe5ea;border-radius:7px;width:100%;min-width:0;margin-top:7px;padding:9px 10px;display:block}.collage-group input[type=range]{accent-color:#25586f;padding:0}.collage-fields{gap:10px;display:flex}.collage-fields>label{flex:1;min-width:0}.collage-group small{color:#8b9ba5;font-size:10px}.collage-group .inline-label{align-items:center;gap:9px;display:flex}.inline-label input[type=color]{border:1px solid #dbe5ea;border-radius:5px;width:45px;height:30px;margin-left:auto;padding:2px}.inline-label input[type=checkbox]{accent-color:#25586f}.collage-presets{flex-wrap:wrap;gap:6px;display:flex}.collage-presets button{color:#41677b;background:#f6f9fb;border:1px solid #dbe5ea;border-radius:6px;padding:8px 9px;font-size:11px}.collage-layers{flex-direction:column;gap:5px;max-height:160px;display:flex;overflow:auto}.collage-layers button{text-align:left;color:#718692;text-overflow:ellipsis;white-space:nowrap;background:#f8fafb;border:1px solid #e4eaee;border-radius:7px;padding:9px 10px;font-size:12px;overflow:hidden}.collage-layers button.selected{color:#25586f;background:#eaf4f9;border-color:#7ca9bf}.collage-group .hint{overflow-wrap:anywhere;font-size:11px;line-height:1.6}#c-status{color:#48758a;background:#f3f8fa;padding:18px 26px;font-size:13px}#c-status.error{color:#a44040;background:#fff5f4}#c-status progress{accent-color:#25586f;width:100%;margin-top:12px;display:block}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:3px;outline:2px solid #67a6c2}@media (width<=760px){.collage-layout{grid-template-columns:1fr}.collage-controls{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px;max-height:none;padding:0 18px;display:grid;overflow:visible}.collage-canvas-wrap canvas{max-height:440px}.collage-stage{padding:15px}.collage-toolbar{gap:12px;padding:18px}.collage-toolbar>span{font-size:10px}.collage-preview-controls .text-button{font-size:11px}.mode-tabs button{padding:11px 18px;font-size:13px}}@media (width<=450px){.collage-controls{grid-template-columns:1fr}.collage-canvas-wrap canvas{max-height:400px}.collage-workspace .actions>.primary{width:100%}.collage-toolbar{flex-wrap:wrap}}#c-lock.locked{color:#846326;background:#fbf1d9;border-radius:7px;padding:9px 12px}.header-links{align-items:center;gap:20px;display:flex}.about-dialog{color:#172b3b;background:#fff;border:1px solid #e4eaee;border-radius:18px;width:min(440px,100% - 32px);max-height:calc(100dvh - 40px);padding:24px;overflow:auto;box-shadow:0 16px 64px #14212a30}.about-dialog::backdrop{background:#14212a88}.about-heading{justify-content:space-between;align-items:center;gap:10px;display:flex}.about-heading h2{margin:0;font-size:17px}.about-dialog>p:not(.hint){color:#73828b;font-size:13px;line-height:1.8}.wechat-contact{background:#f0f6f8;border-radius:10px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.wechat-contact small{color:#73858e;margin-bottom:6px;font-size:11px;display:block}.wechat-contact strong{letter-spacing:.5px;-webkit-user-select:all;user-select:all;font-size:19px}.wechat-qr{width:100%;max-width:310px;height:auto;margin:12px auto 0;display:block}.about-tip{text-align:center}@media (width<=640px){.header-links{flex-direction:column;align-items:flex-end;gap:3px}.header-links .text-button{padding:5px 0;font-size:11px}.about-dialog{padding:20px}}.appreciation{text-align:center;background:#fff9ed;border:1px solid #efdcac;border-radius:14px;margin-top:24px;padding:22px 18px}.appreciation h3{color:#805c22;margin:0;font-size:20px;font-weight:600;line-height:1.5}.appreciation .hint{color:#937c54;font-size:12px;line-height:1.8}.appreciation img{border-radius:10px;width:100%;max-width:280px;height:auto;margin:16px auto 0;display:block}.footer-support{color:#805c22;background:#fff4d9;border-radius:7px;width:fit-content;padding:7px 12px}.preview-timeline{color:#73858e;margin-top:12px;font-size:11px;display:block}.preview-timeline input[type=range]{width:100%;margin:10px 0;display:block}.video-preview-tools{padding:12px 28px 0}.video-preview-tools .preview-timeline{margin-top:0}@media (width<=640px){.video-preview-tools{padding:12px 18px 0}}.mode-tabs{max-width:100%}.mode-tabs button{white-space:nowrap}.stitch-layout{grid-template-columns:340px minmax(0,1fr);display:grid}.stitch-controls{padding:0 22px}.stitch-controls label{color:#73858e;margin:12px 0;font-size:11px;display:block}.stitch-controls input,.stitch-controls select{color:#263e4e;background:#fbfcfd;border:1px solid #dbe5ea;border-radius:7px;width:100%;margin-top:7px;padding:9px 10px;display:block}.stitch-list{flex-direction:column;gap:10px;max-height:520px;display:flex;overflow:auto}.stitch-item{background:#f8fafb;border:1px solid #e4eaee;border-radius:9px;grid-template-columns:44px minmax(0,1fr);gap:10px;padding:12px;display:grid}.stitch-item>img{object-fit:contain;background:#e8eef2;border-radius:5px;width:44px;height:44px}.stitch-item-info strong{overflow-wrap:anywhere;font-size:12px;font-weight:550;display:block}.stitch-item-info small{margin-top:6px;display:block}.stitch-item-actions{grid-column:1/-1;justify-content:flex-end;gap:8px;display:flex}.stitch-stage{background:#eef2f5;min-width:0;padding:24px}.stitch-preview-scroll{background:repeating-conic-gradient(#dce4e9 0% 25%,#e7edf1 0% 50%) 50%/20px 20px;border-radius:10px;min-height:220px;max-height:640px;padding:12px;overflow:auto}.stitch-preview-scroll>p{text-align:center;color:#73858e;margin:70px 0;font-size:13px}.stitch-preview{flex-shrink:0;margin:auto;position:relative}.stitch-preview.horizontal{margin:0}.stitch-preview img{object-fit:fill;display:block;position:absolute}.stitch-workspace .actions{border-top:1px solid #edf0f2}#s-status{color:#48758a;background:#f3f8fa;padding:18px 26px;font-size:13px}#s-status.error{color:#a44040;background:#fff5f4}@media (width<=760px){.stitch-layout{grid-template-columns:1fr}.stitch-controls{padding:0 18px}.stitch-stage{padding:18px}.stitch-list{max-height:320px}.stitch-preview-scroll{max-height:480px}.mode-tabs{width:100%}.mode-tabs button{flex:1;padding:11px 8px;font-size:12px}}.import-guide{margin-top:12px}.import-guide summary{cursor:pointer;color:#48758a;font-size:12px;font-weight:550;line-height:1.7}.import-guide summary:focus-visible{outline-offset:3px;outline:2px solid #4385a3}.import-guide ol{color:#73858e;margin:9px 0;padding-left:18px;font-size:11px;line-height:1.85}.import-guide li+li{margin-top:7px}.import-guide a{color:#48758a;text-underline-offset:3px}.notes .import-reminder{margin-top:12px}@media (width<=640px){.import-guide{margin-left:30px}.notes .import-guide p{margin-left:0}}
