/* ===== 验证码样式 ===== */
.captcha-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}
.captcha-canvas-wrapper {
    cursor: pointer;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    flex-shrink: 0;
    transition: var(--transition);
}
.captcha-canvas-wrapper:hover {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.captcha-canvas-wrapper canvas {
    display: block;
}

/* ===== 短信验证码 ===== */
.sms-code-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
}
.btn-sms-send {
    white-space: nowrap;
    padding: 0 16px;
    height: 46px;
    border: 1px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 10px;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}
.btn-sms-send:hover:not(:disabled) {
    background: var(--primary);
    color: #fff;
}
.btn-sms-send:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    border-color: var(--gray-300);
    color: var(--gray-400);
}

/* ===== 密码强度提示 ===== */
.password-strength {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 4px;
}
.password-strength-bar {
    flex: 1;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
}
.password-strength-fill {
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}
.password-strength-text {
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
}