.upload-form{max-width:720px;margin:0 auto;background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:28px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:flex;flex-direction:column;gap:6px}.field-full{grid-column:1 / -1}.field-label{font-size:14px;font-weight:600;color:#374151}.field input,.field select,.field textarea{font:inherit;font-size:15px;color:#1f2937;padding:10px 12px;border:1px solid #cbd5e1;border-radius:8px;background:#fff;transition:border-color .15s,box-shadow .15s}.field textarea{resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#16a34a;box-shadow:0 0 0 3px #16a34a26}.dropzone{margin-top:20px;border:2px dashed #cbd5e1;border-radius:12px;background:#f8fafc;padding:36px 20px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.dropzone:hover,.dropzone.dragging{border-color:#16a34a;background:#f0fdf4}.dropzone-title{font-size:16px;font-weight:600;color:#1f2937}.dropzone-hint{margin-top:6px;font-size:13px;color:#64748b}.file-list{list-style:none;margin:16px 0 0;padding:0}.file-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid #e2e8f0;border-radius:8px;margin-bottom:8px}.file-name{flex:1;font-size:14px;color:#1f2937;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-size{font-size:13px;color:#64748b;flex-shrink:0}.file-remove{border:none;background:none;color:#dc2626;font-size:13px;cursor:pointer;padding:4px 8px;border-radius:6px}.file-remove:hover{background:#fef2f2}.file-remove:disabled{opacity:.5;cursor:not-allowed}.file-total{font-size:13px;color:#64748b;padding:4px 12px}.upload-actions{margin-top:20px}.btn-submit{width:100%;border:none;background:#16a34a;color:#fff;padding:13px 24px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background .15s}.btn-submit:hover:not(:disabled){background:#15803d}.btn-submit:disabled{background:#9ca3af;cursor:not-allowed}.progress-wrap{display:flex;align-items:center;gap:12px;margin-top:16px}.progress-bar{flex:1;height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:#16a34a;border-radius:999px;transition:width .15s}.progress-text{font-size:13px;color:#64748b;min-width:40px;text-align:right}.result{margin-top:16px;padding:12px 14px;border-radius:8px;font-size:14px}.result.ok{background:#f0fdf4;color:#15803d;border:1px solid #bbf7d0}.result.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}@media (max-width: 560px){.form-grid{grid-template-columns:1fr}}:root{--green-50: #ecfdf3;--green-100: #d1fadf;--green-600: #16a34a;--green-700: #15803d;--green-800: #166534;--teal-700: #0f766e;--ink: #1f2937;--muted: #64748b;--line: #e2e8f0;--card: #ffffff}.app{min-height:100vh;display:flex;flex-direction:column}.site-header{position:sticky;top:0;z-index:10;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:flex;align-items:baseline;gap:10px}.logo-mark{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--green-700)}.logo-sub{font-size:13px;color:var(--muted)}.nav{display:flex;gap:24px}.nav a{font-size:15px;color:var(--muted);transition:color .15s}.nav a:hover{color:var(--green-700)}.hero{padding:96px 0 80px;background:linear-gradient(160deg,#0f766e,#15803d);color:#fff;text-align:center}.hero h1{font-size:44px;font-weight:800;letter-spacing:-.02em}.hero-sub{max-width:640px;margin:20px auto 32px;font-size:18px;color:#ffffffeb}.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:transform .1s,box-shadow .1s}.btn-primary{background:#fff;color:var(--green-800)}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 24px #00000026}.features{padding:72px 0 8px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.feature-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:24px}.feature-icon{width:44px;height:44px;border-radius:10px;background:var(--green-50);color:var(--green-700);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}.feature-card h3{font-size:17px;margin-bottom:8px}.feature-card p{font-size:14px;color:var(--muted)}.upload-section{padding:72px 0}.upload-section h2{font-size:30px;font-weight:700;text-align:center}.section-desc{text-align:center;color:var(--muted);margin:12px 0 32px}.about{padding:0 0 80px}.about h2{font-size:30px;font-weight:700;text-align:center;margin-bottom:16px}.about p{max-width:720px;margin:0 auto;text-align:center;color:var(--muted)}.site-footer{margin-top:auto;border-top:1px solid var(--line);padding:24px 0;text-align:center;font-size:14px;color:var(--muted)}@media (max-width: 900px){.feature-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 560px){.feature-grid{grid-template-columns:1fr}.hero h1{font-size:32px}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,sans-serif;color:#1f2937;background:#f6faf7;line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3{line-height:1.25;margin:0}p{margin:0}a{color:inherit;text-decoration:none}.container{max-width:1080px;margin:0 auto;padding:0 24px}button{font-family:inherit}