:root{--ink:#18221f;--muted:#6f7874;--cream:#f4f1e9;--paper:#fffdfa;--green:#235f51;--line:#dadbd5;--orange:#df6f45}*{box-sizing:border-box}html{font-family:"DM Sans","Noto Sans SC",sans-serif;color:var(--ink);background:var(--cream)}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 18%,rgba(214,227,216,.55),transparent 28%),radial-gradient(circle at 90% 12%,rgba(234,218,197,.6),transparent 24%),var(--cream)}button,input{font:inherit}.topbar{height:78px;display:flex;align-items:center;justify-content:space-between;max-width:1240px;margin:auto;padding:0 32px;border-bottom:1px solid rgba(24,34,31,.1)}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:20px;text-decoration:none;letter-spacing:.08em}.brand-mark{display:grid;place-items:center;width:35px;height:35px;background:var(--ink);color:#fff;border-radius:3px;font-family:"Noto Sans SC";font-size:17px}.privacy-pill{display:flex;align-items:center;gap:9px;color:#5e6864;font-size:13px}.privacy-pill span{width:7px;height:7px;border-radius:50%;background:#50a273;box-shadow:0 0 0 4px rgba(80,162,115,.12)}main{max-width:1180px;margin:auto;padding:72px 32px 60px}.hero{text-align:center;margin-bottom:52px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.22em;color:var(--green);margin:0 0 16px}.hero h1{font-family:"Noto Sans SC";font-size:clamp(38px,5vw,62px);line-height:1.12;letter-spacing:-.055em;margin:0;font-weight:600}.hero h1 span{color:var(--orange)}.intro{color:var(--muted);font-size:15px;line-height:1.8;margin:18px 0 0}.workspace{display:grid;grid-template-columns:1fr 1fr 320px;gap:18px;align-items:start}.panel,.preview-card{background:rgba(255,253,250,.92);border:1px solid rgba(60,70,65,.13);border-radius:10px;box-shadow:0 14px 40px rgba(36,46,41,.055)}.panel{padding:25px}.section-heading{display:flex;gap:13px;align-items:flex-start;margin-bottom:22px}.step{width:27px;height:27px;display:grid;place-items:center;background:#e8eee9;color:var(--green);font-weight:700;font-size:10px;border-radius:50%}.section-heading h2{font-size:16px;margin:2px 0 3px}.section-heading p{font-size:11px;margin:0;color:#8a918e}.dropzone{height:245px;border:1.5px dashed #b9c4be;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;cursor:pointer;background:linear-gradient(135deg,rgba(238,243,239,.6),rgba(255,255,255,.5));transition:.2s}.dropzone:hover,.dropzone.dragging{border-color:var(--green);background:#f0f5f1;transform:translateY(-2px)}.dropzone input{position:absolute;opacity:0;pointer-events:none}.upload-icon{width:47px;height:47px;display:grid;place-items:center;border-radius:50%;color:var(--green);background:#e2ece5;font-size:25px;margin-bottom:7px}.dropzone strong{font-size:14px}.dropzone>span:last-child{font-size:12px;color:#8b928f}.dropzone u{color:var(--green);font-weight:600}.file-card{height:245px;border:1px solid #cdd7d1;border-radius:8px;align-items:center;padding:22px;gap:14px;background:#f4f7f4}.file-card:not([hidden]){display:flex}.pdf-badge{background:#b42318;color:#fff;border-radius:5px;padding:13px 8px;font-size:10px;font-weight:700}.file-info{display:flex;flex-direction:column;gap:5px;min-width:0;flex:1}.file-info strong{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}.file-info span{font-size:11px;color:var(--muted)}#remove-file{border:0;background:transparent;color:#7a827e;font-size:24px;cursor:pointer}.field{border:0;margin:0;padding:0}.field label,.field legend{display:flex;width:100%;justify-content:space-between;font-size:11px;font-weight:600;margin-bottom:9px}.field output{font-weight:500;color:#7f8884}.full{margin-bottom:22px}.input-wrap{position:relative}.input-wrap input{width:100%;height:43px;border:1px solid #ccd1ce;border-radius:5px;padding:0 68px 0 12px;background:#fff;color:var(--ink);font-size:13px;outline:0}.input-wrap input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(35,95,81,.1)}#char-count{position:absolute;right:11px;top:14px;font-size:9px;color:#969c99}.control-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px}input[type=range]{width:100%;height:3px;accent-color:var(--green);cursor:pointer}.colors{display:flex;gap:11px}.colors input{position:absolute;opacity:0}.colors span{display:block;width:20px;height:20px;border-radius:50%;background:var(--swatch);border:3px solid #fff;box-shadow:0 0 0 1px #ccd1ce;cursor:pointer}.colors input:checked+span{box-shadow:0 0 0 2px var(--green)}.toggle-row{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #e3e4df;margin-top:24px;padding-top:19px;cursor:pointer}.toggle-row span{display:flex;flex-direction:column;gap:4px}.toggle-row strong{font-size:11px}.toggle-row small{font-size:9px;color:#8b928f}.toggle-row input{position:absolute;opacity:0}.toggle-row i{width:38px;height:21px;border-radius:20px;background:#bdc4c0;position:relative;transition:.2s}.toggle-row i:after{content:"";position:absolute;width:15px;height:15px;background:#fff;top:3px;left:3px;border-radius:50%;transition:.2s}.toggle-row input:checked+i{background:var(--green)}.toggle-row input:checked+i:after{transform:translateX(17px)}.preview-card{padding:16px}.preview-top{display:flex;justify-content:space-between;align-items:center;padding:0 2px 12px;font-size:11px;font-weight:600}.preview-top small{font-size:9px;color:#919895;font-weight:400}.paper{height:305px;background:#fff;box-shadow:0 4px 18px rgba(20,25,23,.12);position:relative;overflow:hidden;padding:38px 28px}.paper:before{content:"";display:block;width:52%;height:9px;background:#d9dddb;margin-bottom:17px}.paper-lines{display:flex;flex-direction:column;gap:9px}.paper-lines i{display:block;height:4px;background:#eceeec;border-radius:2px}.paper-lines i:nth-child(2),.paper-lines i:nth-child(5){width:82%}.preview-watermarks{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;overflow:hidden}.preview-watermarks span{position:absolute;white-space:nowrap;font-weight:600;transform:rotate(-35deg);color:#1f2937;opacity:.18;font-size:17px}.primary-button{width:100%;height:49px;border:0;border-radius:5px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 17px;margin-top:16px;font-size:12px;font-weight:600;cursor:pointer;transition:.2s}.primary-button:hover{background:var(--green);transform:translateY(-1px)}.primary-button:disabled{opacity:.55;cursor:wait;transform:none}.primary-button b{font-size:19px;font-weight:400}.status{text-align:center;font-size:9px;color:#8b928f;margin:11px 0 0}.status.error{color:#b42318}.status.success{color:#277456}footer{display:flex;justify-content:space-between;max-width:1180px;margin:auto;padding:24px 32px 34px;border-top:1px solid rgba(24,34,31,.1);font-size:10px;color:#8c928f}@media(max-width:980px){.workspace{grid-template-columns:1fr 1fr}.preview-card{grid-column:1/-1;display:grid;grid-template-columns:260px 1fr;gap:14px}.preview-top{display:none}.paper{grid-row:1/4}.primary-button{align-self:end}.status{text-align:left}}@media(max-width:680px){.topbar{padding:0 20px}.privacy-pill{font-size:0}.privacy-pill:after{content:"文件不留存";font-size:11px}main{padding:48px 18px}.hero{margin-bottom:34px}.hero h1{font-size:39px}.intro br{display:none}.workspace{grid-template-columns:1fr}.preview-card{grid-column:auto;display:block}.paper{height:260px}.control-grid{grid-template-columns:1fr}.dropzone,.file-card{height:190px}footer{padding:22px 20px;gap:20px}.panel{padding:21px}}