*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #dc2626;--primary-dark: #7f1d1d;--primary-light: #fef2f2;--accent: #f97316;--bg: #f4f4f7;--surface: #ffffff;--text: #1a1a1a;--muted: #888888;--border: rgba(0,0,0,.08);--radius: 12px}body{font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font-family:inherit}.header{background:#fff;border-bottom:1px solid var(--border);padding:14px 0;position:sticky;top:0;z-index:100}.header-inner{max-width:1000px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}.header-logo{font-size:17px;font-weight:700;color:var(--primary);text-decoration:none;letter-spacing:-.3px}.header-link{font-size:13px;color:var(--muted);text-decoration:none;display:flex;align-items:center;gap:4px;transition:color .15s}.header-link:hover{color:var(--primary)}.footer{border-top:1px solid var(--border);padding:28px 0;margin-top:64px;text-align:center}.footer-inner{max-width:1000px;margin:0 auto;padding:0 20px}.footer-brand{font-size:14px;margin-bottom:6px}.footer-brand strong{color:var(--primary)}.footer-brand a{font-size:13px;color:var(--muted);text-decoration:none;margin:0 6px}.footer-brand a:hover{color:var(--primary)}.footer-copy{font-size:12px;color:var(--muted);margin-top:6px}.container{max-width:1000px;margin:0 auto;padding:0 20px}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius);font-size:16px;font-weight:700;cursor:pointer;transition:background .15s,transform .1s;min-height:48px;text-decoration:none;letter-spacing:.3px}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px)}.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none}.btn-primary.full{width:100%}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;background:var(--surface);color:var(--primary);border:1.5px solid var(--primary);border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:all .15s;min-height:48px;text-decoration:none}.btn-secondary:hover{background:var(--primary-light)}.progress-wrap{margin-top:14px;display:none}.progress-wrap.show{display:block}.progress-bar-bg{background:#f0f0f0;border-radius:20px;height:8px;overflow:hidden;margin-bottom:8px}.progress-bar{height:100%;background:var(--primary);border-radius:20px;transition:width .3s;width:0%}.progress-label{font-size:12px;color:var(--muted);text-align:center}.status-msg{padding:10px 14px;border-radius:8px;font-size:13px;display:none;margin-top:10px}.status-msg.show{display:block}.status-msg.loading{background:#fffbea;border:1px solid rgba(184,134,11,.22);color:#8a6200}.status-msg.error{background:#fff5f5;border:1px solid rgba(200,0,0,.18);color:#c0392b}.status-msg.success{background:#f0faf4;border:1px solid rgba(46,160,87,.25);color:#2e7d32}.spin{display:inline-block;width:14px;height:14px;border:2px solid rgba(0,0,0,.15);border-top-color:currentColor;border-radius:50%;animation:spin .7s linear infinite;vertical-align:middle;margin-right:4px}@keyframes spin{to{transform:rotate(360deg)}}.form-group{margin-bottom:16px}.form-group>label{display:block;font-size:11px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.form-group input[type=text]{width:100%;background:#f8f8f8;border:1px solid rgba(0,0,0,.1);border-radius:8px;padding:10px 12px;font-size:15px;color:var(--text);outline:none;transition:border-color .2s;min-height:44px}.form-group input[type=text]:focus{border-color:var(--primary);box-shadow:0 0 0 3px #dc262614}.form-group input[type=text]::placeholder{color:#ccc}.field-hint{font-size:11px;color:var(--muted);margin-top:4px}.sec-label{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-bottom:10px}.preview-canvas-box{background:#1a1a1a;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;aspect-ratio:9/16}.preview-canvas-box canvas{width:100%;height:100%;display:block}.preview-canvas-label{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--muted);margin-bottom:8px}