.usc-composer,.usc-card{box-sizing:border-box;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:#1c1e21;background:#fff}.usc-composer{max-width:520px;margin:20px auto;border:1px solid #ddd;border-radius:14px;box-shadow:0 8px 24px rgba(0,0,0,.12);overflow:hidden}.usc-composer-header{padding:16px;text-align:center;font-size:21px;font-weight:700;border-bottom:1px solid #ddd}.usc-user-row,.usc-card-head{display:flex;gap:10px;align-items:center;padding:14px 16px 4px}.usc-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover}.usc-user-name{font-weight:700}.usc-visibility,.usc-card-time{font-size:12px;color:#65676b;margin-top:3px}.usc-form{padding:0 16px 16px}.usc-message{width:100%;min-height:130px;border:0;outline:0;resize:vertical;padding:16px 0;font-size:22px;line-height:1.35;box-sizing:border-box}.usc-message::placeholder{color:#777}.usc-add-row{display:flex;justify-content:space-between;align-items:center;border:1px solid #ddd;border-radius:10px;padding:10px 14px;margin-top:14px}.usc-add-label{font-weight:600}.usc-actions{display:flex;gap:6px}.usc-action{border:0;background:transparent;font-size:22px;cursor:pointer;width:38px;height:38px;border-radius:50%}.usc-action:hover{background:#f0f2f5}.usc-submit{width:100%;border:0;border-radius:8px;background:#1877f2;color:#fff;font-weight:700;font-size:16px;padding:11px 14px;margin-top:14px;cursor:pointer}.usc-submit:disabled{background:#e4e6eb;color:#bcc0c4;cursor:not-allowed}.usc-url-wrap{margin-top:8px}.usc-url-input{width:100%;box-sizing:border-box;border:1px solid #ccd0d5;border-radius:8px;padding:11px 12px;font-size:15px}.usc-preview{position:relative;border:1px solid #ddd;border-radius:10px;padding:8px;margin-top:6px}.usc-image-preview{max-width:100%;max-height:320px;border-radius:8px;display:block;margin:auto}.usc-url-preview{padding:10px;word-break:break-all;color:#1877f2}.usc-remove-preview{position:absolute;right:7px;top:7px;width:30px;height:30px;border:0;border-radius:50%;background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.25);font-size:20px;cursor:pointer;z-index:2}.usc-form-message{font-size:14px;margin-top:10px}.usc-form-message.is-error{color:#b3261e}.usc-form-message.is-success{color:#14833b}.usc-feed{max-width:620px;margin:20px auto}.usc-card{border:1px solid #ddd;border-radius:12px;margin-bottom:16px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.06)}.usc-card-head{padding-bottom:10px}.usc-card-message{padding:0 16px 12px;font-size:16px}.usc-card-link{display:block;padding:10px 16px 14px;color:#1877f2;word-break:break-all}.usc-card-image img{display:block;width:100%;height:auto}.usc-login-required,.usc-empty{padding:14px;border:1px solid #ddd;border-radius:8px;background:#fff}
@media (max-width:600px){.usc-composer{border-radius:0;margin:0}.usc-message{font-size:19px}}