:root{--bg: #f0f2f5;--card: #ffffff;--text: #1f2329;--muted: #8f959e;--border: #e5e6eb;--primary: #3370ff;--primary-press: #245bdb;--green: #34c724;--green-bg: #e8faec;--gray-bg: #f2f3f5;--pad-bg: #f5f5f5;--radius: 10px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Helvetica Neue,Helvetica,Microsoft YaHei,Arial,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}.page{min-height:100vh;padding:12px}.page__inner{max-width:560px;margin:0 auto;display:block}.card{background:var(--card);border-radius:var(--radius);padding:16px;box-shadow:0 1px 4px #0000000a}.section{margin-top:18px}.section__label{font-size:14px;font-weight:600;color:var(--text);margin:0 0 10px}.header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--border)}.header__title{font-size:18px;font-weight:600;margin:0;word-break:break-word}.badge{flex:0 0 auto;display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:500;white-space:nowrap}.badge--gray{background:var(--gray-bg);color:var(--muted)}.badge--green{background:var(--green-bg);color:var(--green)}.badge--muted{background:var(--gray-bg);color:#c9cdd4}.content-list{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.content-row{display:flex;gap:12px;padding:11px 12px;border-bottom:1px solid var(--border)}.content-row:last-child{border-bottom:none}.content-row__name{flex:0 0 34%;color:var(--muted);font-size:14px}.content-row__value{flex:1 1 auto;word-break:break-word;white-space:pre-wrap}.content-empty{color:var(--muted);margin:0}.sig__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.sig__hint{color:var(--muted);font-size:13px}.sig__area{width:100%}.sig-canvas{display:block;width:100%;height:220px;background:var(--pad-bg);border:1px solid var(--border);border-radius:var(--radius);touch-action:none}.sig__actions{display:flex;gap:10px;margin-top:12px}.sig__actions .btn{flex:1 1 0}.sig-fullscreen{position:fixed;inset:0;z-index:9999;background:#fff;display:flex;flex-direction:column;padding:10px}.sig-fullscreen__bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.sig-fullscreen__hint{color:var(--muted);font-size:13px}.sig-canvas--full{flex:1 1 auto;height:auto}.sig-fullscreen__actions{margin-top:8px;display:flex}.sig-fullscreen__actions .btn{flex:1 1 0}.btn{appearance:none;border:1px solid var(--border);background:#fff;color:var(--text);border-radius:8px;padding:11px 14px;font-size:15px;font-weight:500;cursor:pointer;transition:background .15s,opacity .15s}.btn:active{background:var(--gray-bg)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn--primary:active{background:var(--primary-press)}.btn--ghost{border-color:var(--primary);color:var(--primary);padding:5px 12px;font-size:13px}.success{text-align:center;padding:10px 0}.success__check{width:56px;height:56px;margin:0 auto 10px;border-radius:50%;background:var(--green);color:#fff;font-size:32px;line-height:56px}.success__title{font-size:17px;font-weight:600;margin:0 0 4px}.success__time{color:var(--muted);font-size:13px;margin:0 0 12px}.success__sig{border:1px solid var(--border);border-radius:var(--radius);padding:8px;background:#fff}.success__sigimg{max-width:100%;display:block;margin:0 auto}.terminal-notice{text-align:center;padding:18px 0}.form-error{color:#f53f3f;font-size:13px;margin:0 0 10px}.qr-panel{display:none}.footer{margin-top:22px;padding-top:14px;border-top:1px solid var(--border);text-align:center}.footer__links{margin-bottom:8px}.footer__link{color:var(--muted);font-size:13px;text-decoration:none}.footer__sep{color:var(--border);margin:0 8px}.footer__note{color:var(--muted);font-size:12px;line-height:1.6;margin:0}.screen{min-height:100vh;padding:20px}.screen--center{display:flex;flex-direction:column;align-items:center;justify-content:center}.muted{color:var(--muted)}.spinner{width:28px;height:28px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:10px}@keyframes spin{to{transform:rotate(360deg)}}.error-card{background:var(--card);border-radius:var(--radius);padding:24px;text-align:center;max-width:360px}.error-card__title{font-weight:600;margin:0 0 6px}@media (min-width: 720px){.page__inner{max-width:880px;display:flex;align-items:flex-start;gap:20px}.card{flex:1 1 auto;padding:24px}.qr-panel{display:block;flex:0 0 240px;background:var(--card);border-radius:var(--radius);padding:20px;text-align:center;box-shadow:0 1px 4px #0000000a}.qr-panel__img{width:200px;height:200px}.qr-panel__caption{color:var(--muted);font-size:13px;margin:10px 0 0}}